基本情報

所属

• 理学研究院　地球惑星科学部門　地球惑星ダイナミクス分野

職名

• 教授

学位

• 博士（地球環境科学）（北海道大学）

ホームページURL

http://recca-hokkaido.sci.hokudai.ac.jp/~inaz/

J-Global ID

• 200901067301741524

研究キーワード

• 気象シミュレーション   気象力学   応用気象学   雪氷気象学   総観気象学   大気海洋相互作用   気候変動   

研究分野

• 自然科学一般 / 大気水圏科学

担当教育組織

•  学士課程　理学部
•  修士課程　理学院
•  博士課程　理学院

職歴

• 2017年02月 - 現在 北海道大学 大学院理学研究院 教授
• 2007年09月 - 2017年01月 北海道大学 理学(系)研究科(研究院) 准教授
• 2007年04月 - 2007年08月 東京大学 気候システム研究センター 特任助教
• 2007年04月 - 2007年08月 国立大学法人東京大学 気候システム研究センター 特任助教
• 2005年10月 - 2007年03月 国立大学法人東京大学 気候システム研究センター 特任助手
• 2004年04月 - 2005年09月 独立行政法人科学技術振興機構 戦略的創造研究推進事業研究員
• 2002年04月 - 2004年03月 日本学術振興会 特別研究員

学歴

• 2000年04月 - 2002年09月   北海道大学   大学院地球環境科学研究科   大気海洋圏環境科学専攻博士後期課程
• 1998年04月 - 2000年03月   北海道大学   大学院地球環境科学研究科   大気海洋圏環境科学専攻修士課程
• 1995年04月 - 1998年03月   京都大学   理学部   理学科
• 1992年04月 - 1995年03月   北海道立 岩見沢東高等学校

所属学協会

• 日本農業気象学会   日本気象学会   

研究活動情報

論文

• Evaluation of tornadic environments and their trends and projected changes in Japan

  Sho Kawazoe, Masaru Inatsu, Mikiko Fujita, Shiori Sugimoto, Yasuko Okada, Shingo Watanabe

  npj Climate and Atmospheric Science 6 1 2023年11月28日 

  Abstract Tornadoes are responsible for several high-impact weather disasters in Japan. However, little is known about how these events have changed over the last several decades or how they may change in future climates. This study examines environmental conditions associated with tornados in Japan using pseudo-soundings from the high-resolution fifth-generation ECMWF reanalysis. We first determine appropriate discriminators of F2+ tornadoes using thermodynamic (convective available potential energy, convective inhibition, lifting condensation level, and the K-index), kinematic (bulk wind difference and storm-relative helicity), and multivariate tornado parameters (energy helicity index, K-helicity index, and the significant tornado parameter), and confirm that F2+ tornadoes occur in environments with higher instability and helicity, but are better distinguished using multivariate parameters. Recent trends indicate that F2+ environments have increased significantly in some regions over the last four decades. We also examined future changes for each parameter using a large ensemble 2-K warming experiment. Robust increases in strong tornado environments are depicted in many regions in Japan, particularly on the Sea of Japan side and the Kanto region. This indicates that despite projected decreases in bulk wind difference and higher convective inhibition, significant increases in atmospheric instability compensate, leading to more days with F2+ tornado potential.
• Prediction skill and practical predictability depending on the initial atmospheric states in S2S forecasts

  Masaru Inatsu, Mio Matsueda, Naoto Nakano, Sho Kawazoe

  Journal of the Atmospheric Sciences 2023年04月20日 

  Abstract The hypothesis that predictability depends on the atmospheric state in the planetary-scale low-frequency variability in boreal winter was examined. We first computed six typical weather patterns from 500-hPa geopotential height anomalies in the Northern Hemisphere using self-organising map (SOM) and k-clustering analysis. Next, using 11 models from the subseasonal-to-seasonal (S2S) operational and reforecast archive, we computed each model’s climatology as a function of lead time to evaluate model bias. Although the forecast bias depends on the model, it is consistently the largest when the forecast begins from the atmospheric state with a blocking-like pattern in the eastern North Pacific. Moreover, the ensemble-forecast spread based on S2S multi-model forecast data was compared with empirically estimated Fokker-Planck equation (FPE) parameters based on reanalysis data. The multi-model mean ensemble-forecast spread was correlated with the diffusion tensor norm; they are large for the cases when the atmospheric state started from a cluster with a blocking-like pattern. As the multi-model mean is expected to substantially reduce model biases and may approximate the predictability inherent in nature, we can summarise that the atmospheric state corresponding to the cluster was less predictable than others.
• Snow Melting Estimate in the Jozankei Dam Basin Based on Snowpack Simulation

  Yoko Taniguchi, Yuta Katsuyama, Masaru Inatsu, Takashi Yamada

  SOLA 19 274 - 281 2023年
• Biases in Shortwave Three-Dimensional Radiative Transfer Calculations for High-Resolution Numerical Models

  Ken Hirata, Miho Sekiguchi, Yousuke Sato, Masaru Inatsu

  SOLA 2023年
• Future Changes in Tropical and Extratropical Cyclones Affecting Hokkaido and Their Related Precipitation Based on Large-Ensemble Climate Simulations

  Sho Kawazoe, Masaru Inatsu, Tomohito J. Yamada, Tsuyoshi Hoshino

  Journal of Applied Meteorology and Climatology 2022年12月22日 

  Abstract This study investigates the impact of future climate warming on tropical (TC) and extratropical cyclones (ETC) using the database for Policy Decision-making for Future climate change (d4PDF) large ensemble simulations. Cyclone tracking was performed using the Neighbor Enclosed Area Tracking algorithm (NEAT), and TC and ETCs were identified over the western North Pacific (WNP). For cyclone frequency, it was revealed that while a slight underestimation of the total number of TCs and ETCs in both the WNP and near Hokkaido, Japan, exists, the d4PDF reproduced the spatial distribution of both TC and ETC tracks well compared to observations/reanalysis. The 4-K warming scenarios derived from six different sea surface temperature warming patterns showed robust decreases in TC frequency in the tropical WNP and a slight reduction in ETCs near Japan. Next, precipitation characteristics for TCs or ETCs in the vicinity of Hokkaido were examined using 5 km-mesh regional climate ensemble simulations. Four representative cyclone locations near Hokkaido are identified using K-means clustering and revealed distinct precipitation characteristics between clusters, with higher TC-associated precipitation than ETC-associated precipitation and the heaviest precipitation in the southern portion of the prefecture. The 4-K warming scenarios revealed increased precipitation for all cyclone placements for both TCs and ETCs. Lastly, average cyclone intensity, translation speed, and size were examined. It was shown that TCs in future climates are more intense, propagate more slowly, and are smaller in terms of enclosed vorticity area as they approach Hokkaido. For ETCs, mean intensity does not change much, they travel slightly faster, and become smaller.
• Projected changes in field workability of agricultural machinery operations for upland crop production with +4 K warming in Hokkaido, Japan

  Keach MURAKAMI, Satoshi INOUE, Manabu NEMOTO, Yasuhiro KOMINAMI, Masaru INATSU, Tomoyoshi HIROTA

  Journal of Agricultural Meteorology 78 4 155 - 163 2022年10月10日
• 現在および将来気候のもとでの確率的な農業影響評価のための1 km アンサンブル日平均気温・日降水量データセット

  村上 貴一, 根本 学, 稲津 將, 菅原 邦泰, 広田 知良

  生物と気象 22 33 - 38 2022年04月 [査読有り]
  
• アンサンブルスプレッドを活かしたガイダンスの精度向上

  相河 卓哉, 稲津 將

  北海道大学地球物理学研究報告 2022年03月26日 [査読無し][通常論文]
  
• Global Warming Effect and Adaptation for a Flooding Event at Motsukisamu River in Sapporo

  Yuka Kanamori, Masaru Inatsu, Ryoichi Tsurumaki, Naoki Matsuoka, Tsuyoshi Hoshino, Tomohito J. Yamada

  SOLA 18 249 - 253 2022年
• Predictability of Heavy Snowfall Days in Western Hokkaido from JMA Operational 1-Month Ensemble Predictions Using Self-Organizing Maps

  Sho Kawazoe, Masaru Inatsu

  SOLA 18 147 - 153 2022年
• Trends and projection of heavy snowfall in Hokkaido, Japan as an application of self-organizing map

  Masaru Inatsu, Sho Kawazoe, Masato Mori

  Journal of Applied Meteorology and Climatology 2021年09月30日 [査読有り][通常論文]
   

  This paper showed the frequency of local-scale heavy winter snowfall in Hokkaido, Japan, its historical change, and its response to global warming using self-organizing map (SOM) of synoptic-scale sea-level pressure anomaly. Heavy snowfall days were here defined as days when the snowfall exceeded 10 mm in water equivalent. It was shown that the SOMs can be grouped into three categories for heavy snowfall days: 1) a passage of extratropical cyclones to the south of Hokkaido, 2) a pressure pattern between the Siberian high and the Aleutian low, and 3) a low-pressure anomaly just to the east of Hokkaido. Groups 1 and 2 were associated with heavy snowfall in Hiroo (located in southeastern Hokkaido) and in Iwamizawa (western Hokkaido), respectively, and heavy snowfall in Sapporo (western Hokkaido) was related to Group 3. The large-ensemble historical simulation reproduced the observed increasing trend in Group 2 and future projection revealed that Group 2 was related to a negative phase of the Western Pacific pattern and the frequency of this group would increase in the future. Heavy snowfall days associated with SOM Group 2 would also increase due to the increase in water vapor and preferable weather patterns in global warming climate, in contrast to the decrease of heavy snowfall days in other sites associated with SOM Group 1.
• Summertime precipitation in Hokkaido and Kyushu, Japan in response to global warming

  Daichi Takabatake, Masaru Inatsu

  2021年07月 [査読有り][通常論文]
   

  We analyzed a large ensemble dataset called the database for Policy Decision Making for Future climate change (d4PDF), which contains 60-km resolution atmospheric general circulation model output and 20-km resolution dynamical downscaling for the Japanese domain. The increase in moisture and precipitation, and their global warming response in June–July–August were described focusing on the differences between Hokkaido and Kyushu. The results suggested that the specific humidity increased almost following the Clausius Clapeyron relation, but the change in stationary circulation suppressed the precipitation increase, except for in western Kyushu. The + 4 K climate in Hokkaido would be as hot and humid as the present climate in Kyushu. The circulation change related to the southward shift of the jet stream and an eastward shift of the Bonin high weakened the moisture flux convergence via a stationary field over central Japan including eastern Kyushu. The transient eddy activity counteracted the increase in humidity, so that the moisture flux convergence and precipitation did not change much over Hokkaido. Because the contribution of tropical cyclones to the total precipitation was at most 10%, the decrease in the number of tropical cyclones did not explain the predicted change in precipitation.
• Development of a Snowdrift Model with the Lattice Boltzmann Method

  Seika Tanji, Masaru Inatsu, Tsubasa Okaze

  2021年04月05日 [査読有り][通常論文]
   

  This study developed a new snowdrift model to evaluate the snowdrift height around a snow fence, often installed along a road in a snowy and windy environment. The model consisted of the conventional computational fluid dynamics (CFD) solver by the Lattice Boltzmann method (LBM) and a module for snow particles’ motion and accumulation. The calculation domain was a half channel with a flat free-slip boundary on the top and a non-slip boundary on the bottom, imposing an inflow with artificially generated turbulence from one side to the other outlet side. Besides the reference experiment with no fence, the experiment was set up with a two-dimensional and a three-dimensional fences normal to the dominant wind direction in the channel center. The estimated wind flow over the two-dimensional fence was characterized by a swirling eddy in the cross-section, whereas the wind flow in the three-dimensional fence experiment was horizontally diffluent with a dipole vortex pair in the leeward of the fence. As a result, almost all of snowdrift was formed in the windward of the two-dimensional and three-dimensional fences, but it was also formed as the split streak in the leeward of the three-dimensional fence. The result suggested that the fence should be as long as possible to avoid the snowdrift on roads.
• A high-resolution prediction system for birch pollen in Sapporo

  Masaru Inatsu, Ryo Yoshida, Shota Karino, Shinji Takeuchi, Satoshi Kobayashi

  Agricultural and Forest Meteorology 297 108229 - 108229 2021年02月 [査読有り][通常論文]
  
• Identification of Atmospheric Blocking with Morphological Type by Topological Flow Data Analysis

  Tomoki UDA, Takashi SAKAJO, Masaru INATSU, Kazuki KOGA

  Journal of the Meteorological Society of Japan. Ser. II 99 5 1169 - 1183 2021年 [査読有り][通常論文]
  
• 2017/2018年冬季における北海道の吹雪発生マップの作成

  丹治 星河, 稲津 將, 川添 祥, 佐藤 陽祐

  雪氷 2021年 [査読有り][通常論文]
  
• Evaluation of Cloud Microphysical Schemes for Winter Snowfall Events in Hokkaido: A Case Study of Snowfall by Winter Monsoon

  Makoto Kondo, Yousuke Sato, Masaru Inatsu, Yuta Katsuyama

  SOLA 17 74 - 80 2021年 [査読有り][通常論文]
  
• Advantage of Volume Scanning Video Disdrometer in Solid-Precipitation Observation

  Yuta Katsuyama, Masaru Inatsu

  SOLA 17 35 - 40 2021年 [査読有り][通常論文]
  
• Risk Assessment and Possible Adaptation of Potato Production in Hokkaido to Climate Change Using a Large Number Ensemble Climate Dataset d4PDF

  Kuniyasu Sugawara, Masaru Inatsu, Seiji Shimoda, Keach Murakami, Tomoyoshi Hirota

  SOLA 17 24 - 29 2021年 [査読有り][通常論文]
   

  While global warming may expand suitable places for potato cultivation in cold regions, it may reduce the yield due to the increase of hot days during the tuber growth period. This study evaluated the effects of global warming on potato cultivation over Hokkaido by dynamically-downscaled ensemble experiments called d4PDF and assessed applicability of possible adaptive measures. In this study, we define the suitable area based on the accumulated temperature and deduced a relationship between the potato yield per unit area and the number of hot days (maximum temperature > 28°C) from crop statistic data. In a warming environment with 2K or 4K increase in global-mean temperature relative to the present climate (1981-2010), the accumulated temperatures likely satisfied the criterion on potato production almost over Hokkaido. The risk of growth delay due to cold weather was projected to reduce. However, hot days in the tuber growth period would increase, reducing potato yield by 7% in a plus 2-K climate and 16% in a plus 4-K climate. This risk of yield loss would not be avoidable by moving up planting by 30 days, and the development of varieties that are tolerant to 31-33°C would be a possible way to adaptation.
• Toward predicting expressway closures due to blowing snow events

  Masaru Inatsu, Seika Tanji, Yousuke Sato

  Cold Regions Science and Technology 177 103123 - 103123 2020年09月 [査読有り][通常論文]
  
• Fitting Precipitation Particle Size–Velocity Data to Mixed Joint Probability Density Function with an Expectation Maximization Algorithm

  Yuta Katsuyama, Masaru Inatsu

  Journal of Atmospheric and Oceanic Technology 37 5 911 - 925 2020年05月 [査読有り][通常論文]
   

  This paper proposes an estimation method of joint size and terminal velocity distribution on the basis of sampling data of precipitation particles containing multiple types. Assuming that the velocity follows the normal distribution and the size follows the gamma distribution, the method searches a locally maximum logarithmic likelihood within a realistic parameter range using the expectation–maximization algorithm. Several test populations were prepared with a realistic number of elements, and then the method was evaluated by retrieving the populations from their sample. The results showed that the original parameters were successfully estimated in most cases of the test population containing some of liquids, graupels, and rimed and unrimed aggregates. The original number of elements was also estimated with an adjustment of the number of elements in a manner such that each of their minority fractions exceeded a threshold. Applied to the two-dimensional disdrometer observation data, the method was helpful to discard frequently observed erroneous data with unrealistically large fall velocity.
• Response of snowpack to +2°C global warming in Hokkaido, Japan

  Yuta KATSUYAMA, Masaru INATSU, Tatsuo SHIRAKAWA

  Journal of Glaciology 66 255 83 - 96 2020年02月 [査読有り][通常論文]
   

  The response of snowpack to a +2 degrees C global warming relative to the present climate was estimated in Hokkaido, Japan, using a physical snowpack model driven by dynamically downscaled (DDS) data, after model evaluation. The evaluation revealed that the snowpack model successfully reproduced the height of snow cover (HS), snow water equivalent (SWE) and snow-covered days (SCDs), but had a moderate bias in the thickness ratios of melt form (MF) and hoar category (HC). The DDS-forced simulation predicted that the seasonal-maximum HS and SWE would decrease by 30-40% in the southwestern and eastern parts of Hokkaido due to a large decrease in snowfall during the accumulation period, and that the HS and SWE in the north would decrease, albeit not significantly due to uncertain atmospheric forcing. The number of SCDs in Hokkaido was predicted to decline by similar to 30 d. Additionally, similar to 50% of snowpack thickness during a season would be MF in most areas, whereas HC would be <50% all over Hokkaido.
• Climate Change Impacts on Heavy Snowfall in Sapporo Using 5-km Mesh Large Ensemble Simulations

  Sho Kawazoe, Masaru Inatsu, Tomohito J. Yamada, Tsuyoshi Hoshino

  SOLA 16 233 - 239 2020年 [査読有り][通常論文]
  
• Development of a Pressure–Precipitation Transmitter

  Masaru Inatsu, Tamaki Suematsu, Yuta Tamaki, Naoto Nakano, Kao Mizushima, Mizuki Shinohara

  Journal of Applied Meteorology and Climatology 58 11 2453 - 2468 2019年11月 

  Abstract A novel method is proposed to create very long term daily precipitation data for the extreme statistics by computing very long term daily sea level pressure (SLP) with the SLP emulator (a statistical multilevel regression model) and then converting the SLP into precipitation by combining statistical downscaling methods of the analog ensemble and singular value decomposition (SVD). After a review of the SLP emulator, we present a multilevel regression model constructed for each month that is based on a time series of 1000 principal components of SLPs on global reanalysis data. Simple integration of the SLP emulator provides 100-yr daily SLP data, which are temporally interpolated into a 6-h interval. Next, the pressure–precipitation transmitter (PPT) is developed to convert 6-hourly SLP to daily precipitation. The PPT makes its first-guess estimate from a composite of time frames with analogous SLP transition patterns in the learning period. The departure of SLPs from the analog ensemble is then corrected with an SVD relationship between SLPs and precipitation. The final product showed a fairly realistic precipitation pattern, displaying temporal and spatial continuity. The annual-maximum precipitation of the estimated 100-yr data extended the tail of probability distribution of the 8-yr learning data.
• Mode-Decomposed Equation Diagnosis for Atmospheric Blocking Development

  Takuya Aikawa, Masaru Inatsu, Naoto Nakano, Tetsuya Iwano

  Journal of the Atmospheric Sciences 76 10 3151 - 3167 2019年10月01日 

  Abstract This paper proposes a new method to identify atmospheric blocking development without the time filtering used in previous studies. A mode-decomposed vorticity equation is formulated from the principal components (PCs) of 500-hPa geopotential height by applying a new idea; the orthonormality of PCs allows any variable to be decomposed into a projection corresponding to the PCs. To test this, sectorial blocking episodes in Northern Hemisphere winter were identified by Barriopedro’s method. A blocking index was defined for each longitudinal range as the linear combination of the 10 largest PCs by means of the composite for the blocking episodes. Blocking development was diagnosed, in terms of the low modes of PC1–PC10 and the high modes of PC11–PC50. The results suggest that the intensification of blocking over the North Pacific and Eurasia is associated with nonlinear interaction among high modes, whereas the intensification (decay) of North Atlantic blocks is related mainly to enhanced nonlinear interaction among low-frequency (high-frequency) eddies. This main result is insensitive to the choice of definition for blocks and the choice of the mode separation boundary.
• Possible hydrological effect of rainfall duration bias in dynamical downscaling

  Yuta Tamaki, Masaru Inatsu, Tomohito J. Yamada

  Hydrological Research Letters 13 4 55 - 61 2019年
• Relative risk assessment for hypothetical radioactivity emission at a snow climate site.

  Inatsu, M, H. Suzuki, M. Kajino

  98 2019年 [査読無し][通常論文]
  
• 大量アンサンブル気候予測データを用いた大雨の時空間特性とその将来変化の分析

  星野剛, 山田朋人, 稲津將, 佐藤友徳, 川瀬宏明, 杉本志織

  土木学会論文集B1(水工学) 74 5 I_13 - I_18 2018年11月 [査読有り][通常論文]
  
• Heavy-rainfall duration bias in dynamical downscaling and its related synoptic patterns in summertime Asian monsoon.

  Tamaki, Y, M. Inatsu, N.-L. Dzung, T. J. Yamada

  Journal of Applied Meteorology and Climatology 57 7 1477 - 1496 2018年 [査読有り][通常論文]
   

  Dynamical downscaling (DDS) was conducted over Japan by using a regional atmospheric model with reanalysis data to investigate the rainfall duration bias over Kyushu, Japan, in July and August from 2006 to 2015. The model results showed that DDS had a positive rainfall duration bias over Kyushu and a dry bias over almost all of Kyushu, which were emphasized for extreme rainfall events. Investigated was the rainfall duration bias for heavy rainfall days, accompanied by synoptic-scale forcing, in which daily precipitation exceeded 30 mm day⁻¹ and covered over 20% of the Kyushu area. Heavy rainfall days were sampled from observed rainfall data that were based on rain gauge and radar observations. A set of daily climatic variables of horizontal wind and equivalent potential temperature at 850 hPa and sea level pressure, around southwestern Japan, corresponding to the sampled dates, was selected to conduct a self-organizing map (SOM) and K-means method. The SOM and K-means method objectively classified three synoptic patterns related to heavy rainfall over Kyushu: strong monsoon, weak monsoon, and typhoon patterns. Rainfall duration had a positive bias in western Kyushu for the strong monsoon pattern and a positive bias in southern and east-coast Kyushu for the typhoon pattern, whereas there was little rainfall duration bias in the weak monsoon pattern. The bias for the typhoon pattern was related to rainfall events with a strong rainfall peak. The results suggest that bias correction for rainfall duration would be required for accurately estimating direct runoff in a catchment area in addition to the precipitation amount.
• Empirical evaluated SDE modelling for dimensionality-reduced systems and its predictability estimates.

  Nakano, N, M. Inatsu, S. Kusuoka, Y. Saiki

  Japan Journal of Industrial and Applied Mathematics 1 - 37 2018年 [査読有り][通常論文]
  
• An Alternative Estimate of Potential Predictability on the Madden-Julian Oscillation Phase Space Using S2S Models

  Yuiko Ichikawa, Masaru Inatsu

  ATMOSPHERE 8 8 2017年08月 [査読有り][通常論文]
   

  This study proposes an alternative method to estimate the potential predictability without assuming the perfect model. A theoretical consideration relates a maximum possible value of the initial-value error to the covariance between analysis and bias-corrected ensemble-mean forecast. To test the method, the prediction limit of the Madden-Julian Oscillation (MJO) was evaluated, based on three pairs of reanalysis and forecast datasets provided by the European Centre for Medium-Range Weather Forecasting, the Japan Meteorological Agency and the National Centers for Environmental Prediction, participating in the subseasonal-to-seasonal prediction project. The results showed that the predictability was higher when MJO amplitude exceeded unity, consistent with the conventional method in which the error is evaluated as the ensemble-forecast spread. Moreover, the multimodel analysis was also conducted because the proposed method is readily applicable to the multimodel average of ensemble-mean forecasts. The phase dependency of the MJO's potential predictability is also discussed.
• Global warming response of snowpack at mountain range in northern Japan estimated using multiple dynamically downscaled data

  Yuta Katsuyama, Masaru Inatsu, Kazuki Nakamura, Sumito Matoba

  COLD REGIONS SCIENCE AND TECHNOLOGY 136 62 - 71 2017年04月 [査読有り][通常論文]
   

  We estimate the response of snowpack to global warming along with the uncertainty of the snowpack change by using a combination of multiple general-circulation models (GCMs), a single regional atmospheric model, and a one-dimensional multi-layered snowpack model. The target site is Mt. Annupuri in Kutchan, Hokkaido, Japan. The forcing of the snowpack model is taken from dynamically downscaled data from GCMs for the present climate and GCMs in a decade when the global-mean temperature has increased by 2 K from present conditions. The results show that global warming would decrease the monthly-mean snow depth throughout the winter season. Other salient features are the decrease of snow depth by 60 cm with maximum uncertainty of 20 cm at the beginning of the snow ablation period, the occurrence of the snow-depth peak a month earlier, and the dominance of melt forms in an earlier season. The ratio of melt forms for all snowpack layers increases with little uncertainty before the snow ablation period. The ratio of hoar does not change much, even though the air temperature increases. The uncertainty in snowpack evaluation is also discussed. (C) 2017 Elsevier B.V. All rights reserved.
• A cyclone identification algorithm with persistent homology and merge-tree.

  Inatsu, M, H. Kato, Y. Katsuyama, Y. Hiraoka, I. Obayashi

  Scientific Online Letters on the Atmosphere 13 214 - 218 公益社団法人 日本気象学会 2017年 [査読有り][通常論文]
   

  This paper addresses a cyclone identification algorithm with the superlevel set filtration of the persistent homology together with the merge-tree reconstruction of data. Based on the information of peaks and saddles of the scaler field, the newly developed algorithm divides the analysis area into several homology classes, each of which satisfies the peak-to-saddle difference larger than a criterion that should be set in advance. Applied to the 850-hPa relative vorticity in the western North Pacific at 1200 UTC on 2 March 2013, 3 homology classes were found with the criterion of 100 × 10⁻⁶ s⁻¹ and 17 homology classes were found with the criterion of 50 × 10⁻⁶ s⁻¹. The merge-tree restructuring clarified the neighbour relation among homology classes. The result suggests that the weak criterion detected too much homology classes, some of which are small peaks inside of a single cyclone. The climatology feature density provides the Pacific storm track with the strict criterion. Finally, a possible way to extend toward cyclone tracking with the persistent homology is discussed.

• 気象学の色遣い～均等色空間を利用したカラーリング～

  稲津 將, 濱田 篤

  天気 63 10 803 - 809 日本気象学会 2016年10月 [査読有り][通常論文]
  
• Long-term assessment of airborne radiocesium after the Fukushima nuclear accident: re-suspension from bare soil and forest ecosystems

  Mizuo Kajino, Masahide Ishizuka, Yasuhito Igarashi, Kazuyuki Kita, Chisato Yoshikawa, Masaru Inatsu

  ATMOSPHERIC CHEMISTRY AND PHYSICS 16 20 13149 - 13172 2016年10月 [査読有り][通常論文]
   

  The long-term effect of Cs-137 re-suspension from contaminated soil and forests due to the Fukushima nuclear accident has been quantitatively assessed by numerical simulation, a field experiment on dust emission flux in a contaminated area (town of Namie, Fukushima prefecture), and air concentration measurements inside (Namie) and outside (city of Tsukuba, Ibaraki prefecture) the contaminated area. In order to assess the long-term effect, the full year of 2013 was selected to study just after the start of the field experiments. The Cs-137 concentrations at Namie and Tsukuba were approximately 10(-1)-1 and 10(-2)-10(-1) mBqm(-3), respectively. The observed monthly median concentration at Namie was 1 to 2 orders of magnitude larger than that at Tsukuba. This observed difference between the two sites was consistent with the simulated difference, indicating successful modeling of Cs-137 re-suspension and atmospheric transport. The estimated re-suspension rate was approximately 10(-6) day(-1), which was significantly lower than the decreasing rate of the ambient gamma dose rate in Fukushima prefecture (10(-4)-10(-3) day(-1)) as a result of radioactive decay, migration in the soil and biota, and decontamination. Consequently, re-suspension contributed negligibly in reducing ground radioactivity. The dust emission model could reproduce the air concentration of Cs-137 in winter, whereas the summer air concentration was underestimated by 1 to 2 orders of magnitude. Re-suspension from forests at a constant rate of 10(-7) h(-1), multiplied by the green area fraction, could explain the air concentration of Cs-137 at Namie and its seasonal variation. The simulated contribution of dust resuspension to the air concentration was 0.7-0.9 in the cold season and 0.2-0.4 in the warm season at both sites; the remainder of the contribution was re-suspension from forest. The re-suspension mechanisms, especially through the forest ecosystems, remain unknown. This is the first study that provides a crude estimation of the long-term assessment of radiocesium re-suspension. Additional research activities should investigate the processes/mechanisms governing the re-suspension over the long term. This could be achieved through conducting additional field experiments and numerical simulations.
• Response of Tropical Cyclone Tracks to Sea Surface Temperature in the Western North Pacific

  Kotaro Katsube, Masaru Inatsu

  JOURNAL OF CLIMATE 29 5 1955 - 1975 2016年03月 [査読有り][通常論文]
   

  A set of short-term experiments using a regional atmospheric model (RAM) were carried out to investigate the response of tropical cyclone (TC) tracks to sea surface temperature (SST) in the western North Pacific. For 10 selected TC cases occurring during 2002-07, a warm and a cold run are performed with 2 and -2 K added to the SSTs uniformly over the model domain, respectively. The cases can be classified into three groups in terms of recurvature: recurved tracks in the warm and cold runs, a recurved track in the warm run and a nonrecurved track in the cold run, and nonrecurved tracks in both runs. Commonly the warm run produced northward movement of the TC faster than the cold run. The rapid northward migration can be mainly explained by the result that cyclonic circulation to the west of the TC is found in the steering flow in the warm run and it is not in the cold run. The beta effect is also activated under the warm SST environment. For the typical TC cases, a linear baroclinic model experiment is performed to examine how the cyclonic circulation is intensified in the warm run. The stationary linear response to diabatic heating obtained from the RAM experiment reveals that the intensified TC by the warm SST excites the cyclonic circulation in the lower troposphere to the west of the forcing position. The vorticity and thermodynamic equation analysis shows the detailed mechanism. The time scale of the linear response and the teleconnection are also discussed.
• Methods to Evaluate Prediction Skill in the Madden-Julian Oscillation Phase Space

  Yuiko Ichikawa, Masaru Inatsu

  JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN 94 3 257 - 267 2016年 [査読有り][通常論文]
   

  Indices of prediction skill over the Madden-Julian oscillation (MJO) phase space are examined with reanalysis and forecast data provided by the Japan Meteorological Agency (JMA). In addition to the bivariate root-meansquare error (RMSE) and the bivariate anomaly correlation coefficient (ACC), the mean-error vector is assessed. Conventionally, the RMSE and ACC have been used, although this approach misses information on the model bias for MJO events. Moreover, the ACC is not suitable for models in which the MJO signal tends to damp in some phases, because the ACC strongly depends on the MJO amplitude. The mean-error vector compensates for this drawback by associating a model's erroneous mean tendency with the RMSE. For example, the JMA forecast produces a leftward mean error vector field uniformly distributed over the MJO phase space with its amplitude related to the RMSE. The RMSE should be then used with the mean error vector for evaluating the MJO prediction skill.
• Soil-Frost Depth Change in Eastern Hokkaido under+2 K-World Climate Scenarios

  Masaru Inatsu, Junpei Tominaga, Yuta Katsuyama, Tomoyoshi Hirota

  SOLA 12 153 - 158 2016年 [査読有り][通常論文]
   

  A future change in the soil-frost depth in eastern Hokkaido was assessed with multiple local climate scenarios. The bias-corrected downscaled data with an aid of a simple snow-depth model were applied to the empirical estimation from cumulative freezing degree-days (CFD) for days when the snow depth is less than 20 cm. Consequently, as the response to global warming climate that was defined as +2-K world in this paper, the maximum soil-frost depth significantly decreased in the coastal regions along the Pacific and in central Tokachi subprefecture with a slight variation among climate scenarios. Parameter-sweep experiments for two observed cases clarified that the temperature increase would bring the soil warming in the environment where the insulation effect of snow cover does not work at present, while it would bring the soil frosting in the environment where the insulation effect works.
• Sampling Downscaling in Summertime Precipitation over Hokkaido

  Yuta Tamaki, Masaru Inatsu, Ryusuke Kuno, Naoto Nakano

  JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN 94A 17 - 29 2016年 [査読有り][通常論文]
   

  The sampling downscaling (SmDS) in which a regional atmospheric model is integrated for sampled periods was performed for summertime Hokkaido. Selected are top two and bottom two years of the general circulation model projection onto the first singular value decomposition mode where heavy precipitation in southern Hokkaido is correlated with the moisture flux convergence in the synoptic field. The SmDS result integrated for the four years successfully reproduces the dynamical downscaling for 30 years, in terms of climatological precipitation and the 99-percentile value of daily precipitation. This indicates that SmDS can be applied to the environment where local precipitation is mostly controlled by synoptic climate patterns. A further statistical consideration in this study supports the notion. It is also demonstrated that SmDS selects a group of years where extreme events likely occur another group of years where they rarely occur.
• Multi-GCM by multi-RAM experiments for dynamical downscaling on summertime climate change in Hokkaido

  Masaru Inatsu, Tomonori Sato, Tomohito J. Yamada, Ryusuke Kuno, Shiori Sugimoto, Murad A. Farukh, Yadu N. Pokhrel, Shuichi Kure

  ATMOSPHERIC SCIENCE LETTERS 16 3 297 - 304 2015年07月 [査読有り][通常論文]
   

  The experiments with three general circulation models (GCMs) by three regional atmospheric models (RAMs) for the dynamical downscaling (DDS) have been performed to evaluate the uncertainty in the global warming response during summertime in Hokkaido, Japan. The results of a 10-year RAM integration nested into GCM under present or future climate conditions were synthesized after applying bias correction. For the target decades during which the global-mean temperature increases by 2 K in each GCM, the DDS results indicate that surface air temperature and precipitation mostly depend on the GCM imposed as the lateral boundary condition.
• Predictability of Wintertime Stratospheric Circulation Examined Using a Nonstationary Fluctuation-Dissipation Relation

  Masaru Inatsu, Naoto Nakano, Seiichiro Kusuoka, Hitoshi Mukougawa

  JOURNAL OF THE ATMOSPHERIC SCIENCES 72 2 774 - 786 2015年02月 [査読有り][通常論文]
   

  The dynamics and predictability of stratospheric low-frequency variability in the Northern Hemisphere winter are examined using a two-dimensional (2D) phase space spanned by the leading empirical orthogonal functions of the 10-hPa geopotential height field. The 2D phase space represents the variation of the strength of the polar night jet and the amplitude of zonal wavenumber-1 eddy components. A linearized nonstationary fluctuation dissipation relation (NFDR) is developed based on the deterministic drift vector and the stochastic diffusion tensor estimated from a reanalysis dataset. The authors find that the solution of the linearized NFDR with an optimal data sampling time interval for estimating the drift vector and the diffusion tensor provides a good representation in the phase space of the inhomogeneous distribution of the forecast spread of the operational ensemble forecast conducted by the Japan Meteorological Agency. In particular, the linearized NFDR captures the local maximum of the forecast spread during the onset period of the major stratospheric sudden warming events.
• Diagnostics for Near-Surface Wind Response to the Gulf Stream in a Regional Atmospheric Model

  Kohei Takatama, Shoshiro Minobe, Masaru Inatsu, R. Justin Small

  JOURNAL OF CLIMATE 28 1 238 - 255 2015年01月 [査読有り][通常論文]
   

  The mechanisms acting on near-surface winds over the Gulf Stream are diagnosed using 5-yr outputs of a regional atmospheric model. The diagnostics for the surface-layer momentum vector, its curl, and its convergence are developed with a clear separation of pressure adjustment from downward momentum inputs from aloft in the surface-layer system. The results suggest that the downward momentum mixing mechanism plays a dominant role in contributing to the annual-mean climatological momentum curl, whereas the pressure adjustment mechanism plays a minor role. In contrast, the wind convergence is mainly due to the pressure adjustment mechanism. This can be explained by the orientation of background wind to the sea surface temperature front. The diagnostics also explain the relatively strong seasonal variation in surface-layer momentum convergence and the small seasonal variation in curl. Finally, the surface-layer response to other western boundary currents is examined using a reanalysis dataset.
• Extreme precipitation intensity in future climates associated with the Clausius-Clapeyron-like relationship.

  Yamada, T. J, M. A. Farukh, T. Fukushima, M. Inatsu, T. Sato, Y. N. Pokhrel, T. Oki

  Hydrological Research Letters 8 4 108 - 113 THE JAPAN SOCIETY OF HYDROLOGY AND WATER RESOURCES 2015年01月 [査読有り][通常論文]
   

  This paper introduces a method named "hybrid-downscaling" to estimate the future extreme hourly precipitation intensity based on observational evidence of the 99th percentile precipitation intensity against air temperature in Sapporo and Tokyo, Japan. The future projected air temperature under the Special Report on Emissions Scenarios (SRES) A1B was used after dynamical downscaling using 3 different regional atmospheric models (RAMs) with lateral boundary conditions from 3 different general circulation models (GCMs). We analyzed the 99th percentile of hourly precipitation intensity against daily mean air temperature in Sapporo and Tokyo. The 99th percentile precipitation intensity tended to have an approximate equation in which the rate of increment was similar to the Clausius-Clapeyron rate of change in the saturated water vapor. This study also showed that the precipitable water vapor and the convective instability followed the Clausius-Clapeyron-like rate of change during the hours with the 99th percentile precipitation intensity.
• Development of sampling downscaling: a case for wintertime precipitation in Hokkaido

  Ryusuke Kuno, Masaru Inatsu

  CLIMATE DYNAMICS 43 1-2 375 - 387 2014年07月 [査読有り][通常論文]
   

  This study has developed sampling downscaling (SmDS), in which dynamical downscaling (DDS) is executed for a few of period selected from a long-term integration by general circulation model based on an observed statistical relationship between large-scale climate and regional-scale precipitation. SmDS expectedly produces climatology and frequency distribution of precipitation over a nested region with reducing computational cost, if a global-scale climate pattern mostly controls regional-scale weather statistics. Here SmDS was attempted for wintertime precipitation over Hokkaido, Japan, because a linkage between snowfall and sea-level pressure patterns has been known by Japanese synopticians and it can be detected by singular value decomposition (SVD) analysis on wintertime inter-annual variability during the period from 1980/1981 to 2009/2010 for precipitation over Hokkaido and moisture flux convergence around there. DDS for the full period over the same domain was also performed for comparison with SmDS. SmDS selected two winters from the top and two winters from the bottom of the projection onto the first SVD mode. It was found that, comparing with the full DDS, SmDS indeed provided unbiased statistics for average but exaggerated extreme statistics such as heavy rainfall frequency. It was also shown that the sampling in the SmDS method was much more effective than the random sampling.
• Simulated impact of elevated CO2, temperature, and precipitation on the winter wheat yield in the North China Plain

  Peng Yang, Wenbin Wu, Zhengguo Li, Qiangyi Yu, Masaru Inatsu, Zhenhuan Liu, Pengqin Tang, Yan Zha, Masahide Kimoto, Huajun Tang

  REGIONAL ENVIRONMENTAL CHANGE 14 1 61 - 74 2014年02月 [査読有り][通常論文]
   

  We studied the separate and interacting effects of changes on CO2, temperature, and precipitation on the growth and yield of winter wheat in five representative sites on the North China Plain using a crop yield simulation model, known as the Environmental Policy Integrated Climate (EPIC) model. The daily-maximum/minimum temperature and precipitation data obtained using a comprehensive climate model, that is, the Model for Interdisciplinary Research On Climate (MIROC), based on the scenario A1B for 2085-2100 were calibrated using a novel statistical algorithm and used as the climate change scenario in the EPIC model. The results indicated that an increase in the CO2 concentration of up to 680 ppm would increase the winter wheat yield by 24.8 and 43.1 % in irrigated and rainfed fields, respectively. Increases in the average maximum temperature of up to 4.9 degrees C and the average minimum temperature of up to 4.8 degrees C would increase the crop yield by 5.2 % in irrigated condition, but decrease it by 7.2 % in rainfed condition. By contrast, the yield of irrigated field decreased by 5.5 % when the annual precipitation increased by 317 mm, whereas that of rainfed field increased by 30.1 %. The interacting effects of simultaneous increases in the parameters were also simulated. With a constant CO2 level (370 ppm), the EPIC model predicted that the effects of temperature and precipitation on yield would be -0.9 and -1.9 % for irrigated and rainfed fields, respectively. When the CO2 level increased to 680 ppm, the interacting effect of elevated CO2, temperature, and precipitation increased the average yield by ca 23.1 % with the irrigated treatment and by ca 27.7 % with the rainfed treatment. The results also indicated that with a climate change scenario, the temperature-stress days decreased during the period of winter wheat growth whereas the nitrogen-stress days increased significantly in the North China Plain. These simulated separate and interaction simulations may be useful for identifying appropriate management or genotype adaptations of winter wheat to cope with a climate change scenario in the North China Plain.
• Statistical Analysis on Daily Variations of Birch Pollen Amount with Climatic Variables in Sapporo

  Masaru Inatsu, Satoshi Kobayashi, Shinji Takeuchi, Anna Ohmori

  SOLA 10 172 - 175 2014年 [査読有り][通常論文]
   

  Birch pollen mainly causes springtime allergy-related diseases, birch pollinoses, widely known in high-latitude countries. By utilizing the observation in Sapporo from 2001 to 2011, we found that the daily pollen amount almost follows the log-normal distribution with its characteristic time-scale of several days. The pollen amount itself was therefore taken as a major predictor for its day-to-day variations. Another predictor was chosen from climatic variables that were possibly related to the pollen amount such as temperature, rainfall, sunshine duration, wind, relative humidity, rainfall, and daily temperature difference to explain daily variations of the pollen amount. A resulting statistical equation with two independent predictors of lagged pollen amount and diurnal temperature range based on the multiple regression analysis provided a reasonable hindcast prediction with the correlation coeffcient with observation being 0.80. Moreover, the equation was better fitted to the observations in abundant years than in poor-yield years.
• Dynamical downscaling for assessment of the climate in Ghana

  Masaru Inatsu, Tsubasa Nakayama, Yoshie Maeda, Hirotaka Matsuda

  Journal of Disaster Research 9 4 412 - 421 2014年 [査読有り][通常論文]
   

  Dynamical downscaling (DDS), in which a regional atmospheric model (RAM) experiment nested into coarser-resolution data provides a spatio-temporal fine dataset for a particular region, was performed to assess the present climate in Ghana. The DDS successfully evaluated realistic seasonal march and inter-annual variability in rainfall, in comparison with gauge and satellite observation. The DDS also indicated that land-lake and land-sea circulation interacted with the West African monsoon likely characterized the local climate in Ghana.
• Dynamics and Geometry of Extratropical Cyclones in the Upper Troposphere by a Neighbor Enclosed Area Tracking Algorithm

  Masaru Inatsu, Shotaro Amada

  JOURNAL OF CLIMATE 26 21 8641 - 8653 2013年11月 [査読有り][通常論文]
   

  This study shows that the morphological characteristics of upper-tropospheric extratropical eddies are closely related to the background flow in the Northern Hemisphere winter. Enclosed surfaces of 300-hPa relative vorticity are identified by using the neighbor enclosed area tracking algorithm, and the periphery of these surfaces are approximated by ellipses. Eddies are classified into five categories according to the approximate ellipse. Eddies having an oblateness of less than 0.6 are classified as near circle, or are otherwise classified as northeast-southwest (NE-SW), northwest-southeast (NW-SE), north-south, or west-east, according to the direction of the major axis. In the wintertime climatology, NE-SW-oriented cyclones are collocated with the jet stream, while NW-SE-oriented cyclones mostly reside north of the jet. In interannual variability, moreover, the frequency of NE-SW cyclones is slightly correlated with the Arctic Oscillation (AO) index, while the frequency of NW-SE cyclones is highly anticorrelated with the AO index. This is consistent with positive feedback between horizontally slanted eddies and background flow, as has been shown in many previous studies.
• Tropical Cyclone Tracking Using a Neighbor Enclosed Area Tracking Algorithm

  Yuya Satake, Masaru Inatsu, Masato Mori, Akira Hasegawa

  MONTHLY WEATHER REVIEW 141 10 3539 - 3555 2013年10月 [査読有り][通常論文]
   

  Tropical cyclone (TC) tracking is essential for calculating TC statistics from gridded datasets. A new method for TC tracking is presented here using neighbor enclosed area tracking (NEAT), which is based on the temporal overlap of enclosed areas above a vorticity threshold and differs from the widely used neighbor point tracking (NPT) method. The parameters of cyclone intensity, vertical-shear, and warm-core criteria were intensively tuned for NEAT and NPT. When these criteria were optimized for the typhoon tracks observed in the western North Pacific based on the Japanese 25-yr Reanalysis Project (JRA-25)/Japan Meteorological Agency (JMA) Climate Data Assimilation System (JCDAS) dataset, the NEAT and NPT algorithms captured approximately 85% of typhoons with little qualitative distortion in the spatial distribution and temporal variability of the TC track density. The grid system dependency of the algorithms was tested by applying NEAT and NPT to a high-resolution general circulation model output. The method presented here can also provide realistic statistics on the TC size, the extratropical transition timing, and the meridional heat transport.
• IMILAST A Community Effort to Intercompare Extratropical Cyclone Detection and Tracking Algorithms

  Urs Neu, Mirseid G. Akperov, Nina Bellenbaum, Rasmu S. Benestad, Richard Blender, Rodrigo Caballero, Angela Cocozza, Helen F. Dacre, Yang Feng, Klaus Fraedrich, Jens Grieger, Sergey Gulev, John Hanley, Tim Hewson, Masaru Inatsu, Kevin Keay, Sarah F. Kew, Ina Kindem, Gregor C. Leckebusch, Margarida L. R. Liberato, Piero Lionello, Igor I. Mokhov, Joaquim G. Pinto, Christoph C. Raible, Marco Reale, Irina Rudeva, Mareike Schuster, Ian Simmonds, Mark Sinclair, Michael Sprenger, Natalia D. Tilinina, Isabel F. Trigo, Sven Ulbrich, Uwe Ulbrich, Xiaolan L. Wang, Heini Wernli

  BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY 94 4 529 - 547 2013年04月 [査読有り][通常論文]
  
• Dynamics and Practical Predictability of Extratropical Wintertime Low-Frequency Variability in a Low-Dimensional System

  Masaru Inatsu, Naoto Nakano, Hitoshi Mukougawa

  JOURNAL OF THE ATMOSPHERIC SCIENCES 70 3 939 - 952 2013年03月 [査読有り][通常論文]
   

  Dynamics and practical predictability of extratropical low-frequency variability (LFV) in Northern Hemisphere winter are examined in the framework of a two-dimensional (2D) stochastic differential equation (SDE) on the phase space spanned by two leading empirical orthogonal function modes of low-pass-filtered 500-hPa geopotential height variations. The drift vector and diffusion tensor of the 2D SDE with multiplicative noise are theoretically connected with deterministic and stochastic error growth, respectively; both are statistically estimated from a reanalysis dataset. Projected onto the 2D phase space is the practical predictability of the LFV estimated by the 10-day forecast spread based on the 1-month ensemble prediction operationally conducted by the Japan Meteorological Agency (JMA). It is shown that the forecast spread of the LFV prediction by the JMA model for a relatively shorter prediction period when the model bias does not hamper the forecast is primarily explained by the stochastic error growth associated with the diffusion tensor and the deterministic error growth due to the Jacobian of the drift vector plays a secondary role. A non-Gaussian PDF of the LFV is also related to the norm of the diffusion tensor. Hence, the stochastic processes mostly control the dynamics and predictability of the LFV in the 2D phase space.
• Are Greenhouse Gas Signals of Northern Hemisphere winter extra-tropical cyclone activity dependent on the identification and tracking algorithm?

  Uwe Ulbrich, Gregor C. Leckebusch, Jens Grieger, Mareike Schuster, Mirseid Akperov, Mikhail Yu. Bardin, Yang Feng, Sergey Gulev, Masaru Inatsu, Kevin Keay, Sarah F. Kew, Margarida L. R. Liberato, Piero Lionello, Igor I. Mokhov, Urs Neu, Joaquim G. Pinto, Christoph C. Raible, Marco Reale, Irina Rudeva, Ian Simmonds, Natalia D. Tilinina, Isabel F. Trigo, Sven Ulbrich, Xiaolan L. Wang, Heini Wernli

  METEOROLOGISCHE ZEITSCHRIFT 22 1 61 - 68 2013年02月 [査読有り][通常論文]
   

  For Northern Hemisphere extra-tropical cyclone activity, the dependency of a potential anthropogenic climate change signal on the identification method applied is analysed. This study investigates the impact of the used algorithm on the changing signal, not the robustness of the climate change signal itself. Using one single transient AOGCM simulation as standard input for eleven state-of-the-art identification methods, the patterns of model simulated present day climatologies are found to be close to those computed from re-analysis, independent of the method applied. Although differences in the total number of cyclones identified exist, the climate change signals (IPCC SRES A1B) in the model run considered are largely similar between methods for all cyclones. Taking into account all tracks, decreasing numbers are found in the Mediterranean, the Arctic in the Barents and Greenland Seas, the mid-latitude Pacific and North America. Changing patterns are even more similar, if only the most severe systems are considered: the methods reveal a coherent statistically significant increase in frequency over the eastern North Atlantic and North Pacific. We found that the differences between the methods considered are largely due to the different role of weaker systems in the specific methods.
• ガーナにおける気象情報の空間詳細化

  稲津將, 中山翼, 松田浩敬, 前田芳恵

  細氷(Web) 59 WEB ONLY  2013年 [査読無し][通常論文]
  
• 確率微分方程式を用いた気候モデルについて.

  中野直人, 稲津將, 向川均, 楠岡誠一郎

  京都大学数理解析研究所講究録 1823 79 - 96 2013年 [査読無し][通常論文]
  
• Recent Changes in Explosively Developing Extratropical Cyclones over the Winter Northwestern Pacific

  Koki Iwao, Masaru Inatsu, Masahide Kimoto

  JOURNAL OF CLIMATE 25 20 7282 - 7296 2012年10月 [査読有り][通常論文]
   

  This study investigated recent changes in the characteristics of explosively developing extratropical cyclones over the northwestern Pacific region in winter from 1979/80 to 2010/11 by using reanalysis data from the Japanese 25-yr Reanalysis/Japan Meteorological Agency Climate Data Assimilation System (JRA-25/JCDAS). The results showed that the frequency of explosive cyclones increased in the northwestern Pacific region east of Japan. This increase was accompanied by a decrease in the number of slowly developing cyclones, indicating an increase in the cyclone growth rate. Moreover, most of the increased explosive cyclones east of Japan originated southwest of Japan. A comparison of the dynamical features and energy budgets of two composite cyclones in the earlier and later halves of the study period suggested that the increase was due to an enhancement of the low-level baroclinicity to the east of Japan and an increase in humidity associated with sea surface temperature warming and enhanced evaporation along the eastern shore of the Asian continent.
• Influence of the Kuroshio in the East China Sea on the Early Summer (Baiu) Rain

  Yoshi N. Sasaki, S. Minobe, T. Asai, M. Inatsu

  JOURNAL OF CLIMATE 25 19 6627 - 6645 2012年10月 [査読有り][通常論文]
   

  Influence of the Kuroshio in the East China Sea on the baiu rainband is examined using satellite observations, a reanalysis dataset, and a regional atmospheric model from 2003 to 2008. Satellite observations and reanalysis data reveal that precipitation over the Kuroshio is the highest in early summer (June), when the baiu rainband covers the East China Sea. The high rainfall is collocated with the warm sea surface temperature (SST) tongue of the Kuroshio. This locally enhanced precipitation is embedded in the large-scale baiu rainband, so that the amplitude of precipitation over the Kuroshio is twice as large as that in its surrounding area. The Kuroshio is also accompanied by high surface wind speed, energetic evaporation, and wind convergence. This wind convergence likely results from the SST influence on atmospheric pressure through not only temperature changes, but also humidity changes. Furthermore, the Kuroshio anchors the ascent motion and large diabatic heating with a peak in the midtroposphere, suggesting that the influence of the Kuroshio extends to the upper troposphere. It is also found that the East China Sea in June is the region of the strongest deep atmospheric response to western boundary currents along with the Gulf Stream region in summer. The observational results are well reproduced by the regional atmospheric model. The model indicates that when the SST tongue of the Kuroshio is smoothed, the enhanced precipitation, the energetic evaporation, and the wind convergence over the Kuroshio disappear, although the large-scale structure of the baiu rainband is not essentially changed.
• Wintertime extratropical cyclone frequency around Japan

  Masaru Inatsu, Kazutaka Terakura

  CLIMATE DYNAMICS 38 11-12 2307 - 2317 2012年06月 [査読有り][通常論文]
   

  Data analysis and regional atmospheric model (RAM) experiments revealed key factors in the control of wintertime cyclone passage routes from Northeast Asia to the western North Pacific. The cyclone routes were independent of the global flow pattern in the interannual variability, while cyclone growth closely agreed with linear baroclinic theory. The RAM experiments with a different lateral boundary condition composed of a combination of monthly mean and transient components also showed that the upstream eddies are important for the track route, but the background states are not. Additionally, the RAM experiments showed that the mean flow controlled the growth rate of cyclones.
• GCM Bias of the Western Pacific Summer Monsoon and Its Correction by Two-Way Nesting System

  Masaru Inatsu, Yuya Satake, Masahide Kimoto, Natsuko Yasutomi

  JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN 90B 1 - 10 2012年03月 [査読有り][通常論文]
   

  Accurate simulation of summertime convection associated with the Asian monsoon trough over the subtropical western Pacific is important but difficult to achieve in many general circulation models (GCMs). This study reports a case in which bias could be reduced by introducing a higher-resolution regional atmospheric model (RAM), two-way nested in an atmospheric GCM over the western Pacific. Additional partial-coupling experiments revealed that GCM bias correction was insensitive to the coupling domain. The two-way nesting effect was similar to one phase of a leading mode of natural variability in the system. This is indicative that the two-way nesting model provides more realistic tropical heating that effectively excites a correct phase of the intrinsic dynamical mode to reduce GCM bias.
• Diagnostics for near-surface wind convergence/divergence response to the Gulf Stream in a regional atmospheric model

  Kohei Takatama, Shoshiro Minobe, Masaru Inatsu, R. Justin Small

  ATMOSPHERIC SCIENCE LETTERS 13 1 16 - 21 2012年01月 [査読有り][通常論文]
   

  This study proposes a novel diagnostics for near-surface wind responses to oceanic fronts. By separating two roles of wind stress, i.e. downward momentum input and the surface friction, the diagnostics can express near-surface winds as a sum of terms relating to pressure adjustment, downward momentum mixing, and horizontal advection. The diagnostics are applied to the climatological wind convergence/divergence over the Gulf Stream obtained from a regional atmospheric model. It is found that the pressure adjustment plays a primary role and is mainly responsible for the convergence, while the downward momentum mixing is a secondary contributing factor to the divergence. Copyright (c) 2011 Royal Meteorological Society
• The neighbor enclosed area tracking algorithm for extratropical wintertime cyclones

  Masaru Inatsu

  ATMOSPHERIC SCIENCE LETTERS 10 4 267 - 272 2009年10月 [査読有り][通常論文]
   

  The neighbor enclosed area tracking (NEAT) algorithm is proposed as an alternative method to conventional point-to-point cyclone tracking approaches. NEAT enables us to count the genesis and tracks of individual cyclones as well as the number of merged and separated cyclones. Little difference in cyclone genesis or track climatology in the Northern Hemisphere was found between NEAT and conventional tracking. The NEAT results indicate a high probability of cyclone merger in the western Pacific and western Atlantic. Composite maps and backtracking from merged cyclones reveal the characteristics of merged cyclones. Copyright. (C) 2009 Royal Meteorological Society
• A Scale Interaction Study on East Asian Cyclogenesis Using a General Circulation Model Coupled with an Interactively Nested Regional Model

  Masaru Inatsu, Masahide Kimoto

  MONTHLY WEATHER REVIEW 137 9 2851 - 2868 2009年09月 [査読有り][通常論文]
   

  This study newly developed the interactively nested climate model (INCL) using a general circulation model (GCM) interactively nested with a regional atmospheric model (RAM). One interactive experiment with finer RAM topography and another with coarser topography, as well as offline versions of each experiment, were performed to investigate the effects of subsynoptic-scale eddies and subsynoptic-scale mountains in northeast Asia on the larger-scale climate, using the GCM with T42 atmosphere and the RAM with 40-km mesh size in the INCL system. The subsynoptic-scale eddy effect restrictively increased synoptic-scale eddy activity within the RAM domain. In contrast, subsynoptic-scale mountains had the effect of robust anticyclonic circulation around the Sea of Japan and effectively forced larger-scale circulation. The effect was positively fed back to the mean field and amplified the anticyclonic circulation accompanied by suppressed storm activity in northeast Asia. The results suggest that subsynoptic-scale mountains affect not only subsynoptic-scale eddies but also the global climate.
• Stratospheric Sudden Warming with Projected Global Warming and Related Tropospheric Wave Activity

  Masaru Inatsu, Masahide Kimoto, Akimasa Sumi

  SOLA 3 105 - 108 2007年 [査読有り][通常論文]
   

  Stratospheric sudden warming (SSW) in association with projected global warming (GW) in the Northern Hemisphere was investigated by 20th-century and 21st-century simulations (20CS and 21CS) using the atmosphere-ocean coupled general circulation model. Composite analysis revealed that the model simulated 20th-century dynamical aspects of SSW well. Although SSW events in early winter are missing, considering difficulties in reasonable SSW simulation, we regard the 20CS results as reference values. The 21CS suggests that forcing by GW increases the number of both major and minor SSW events in Dec, Jan, and early Feb, in correlation with larger eddy heat flux (EHF) at 100 hPa in Nov, Dec, and early Jan. The increase of the flux mainly originates from tropospheric stationary wave response. The greater flux continues until early Jan and then the polar night jet is much more weakened in Feb. This background state then effectively blocks wave propagation into the stratosphere and the EHF at 100 hPa slightly decreases though the difference is not statistically significant. The major SSW events decreases in Mar.
• The seasonal and wintertime interannual variability of the split jet and the storm-track activity minimum near New Zealand

  Masaru Inatsu, Brian J. Hoskins

  Journal of the Meteorological Society of Japan 84 3 433 - 445 2006年06月 [査読有り][通常論文]
   

  The seasonal and wintertime interannual variability of the split jet and the storm-track activity minimum near New Zealand (NZ) have been examined based upon the European Centre for Medium Range Weather Forecast Reanalysis (ERA-40) 1979-2001 daily data. Using the split jet index defined in this paper, the climatological variation in the split jet is closely related to the storm-track activity minimum. In austral winter, the split jet is located near NZ along with the storm-track activity minimum, which is established by the climatological Rossby wave forced by the cross-equatorial flow in the Indian Ocean. In austral spring and autumn, in contrast, both the NZ split jet and the storm-track activity minimum are less clear in the absence of the Rossby wave, because of the near-zero Indian Ocean cross-equatorial flow. However, interannual variation in the wintertime Indian Ocean cross-equatorial flow is only weakly associated with interannual variability in the split jet, the correlation being 0.14. The interannual variation in the cross-equatorial flow further east, in the Indonesian region, shows a higher correlation of 0.29. The middle and higher latitude components of the split jet structure are more strongly related to the zonally asymmetric part of the Antarctic Oscillation. An index for this has a 0.43 correlation on interannual time scales with the split jet index. Other processes must also be important for the interannual variability of the split jet and storm-track activity minimum in the NZ region. It is hypothesized that blocking in that region may be of particular importance. © 2006, Meteorological Society of Japan.
• 南半球冬季ストームトラックの東西非対称性の形成について～2005年度山本・正野論文賞記念講演～

  稲津將

  天気 53 537 - 549 2005年09月 [査読有り][通常論文]
  
• Difference of Boreal Summer Climate between Coupled and Atmosphere-only GCMs

  Masaru Inatsu, Masahide Kimoto

  SOLA 1 105 - 108 2005年 [査読有り][通常論文]
   

  Effects of atmosphere-ocean coupling have been investigated using the CCSR/NIES/FRCGC coupled and atmospheric general circulation models (CGCM and AGCM). The latter is integrated with monthly sea surface temperatures (SSTs) taken from the former. The given SSTs being independent of the atmospheric fluctuations, the AGCM supplies more water vapor to the atmosphere to adjust larger air-sea temperature difference. In our AGCM, the summertime land temperatures are higher due to greater greenhouse effect, because the change of the cloud amount is too small to affect the radiative fluxes. More evaporation induces stronger rainfall in some regions, and circulation and moisture distribution control the horizontal distribution of rainfall. Hence the coupling effect in rainfall distribution could change if the climate condition changed. As an example in our model, the decoupling does not affect Japanese summer rainfall under the preindustrial condition but strengthens it under the global warming condition.
• Two Types of Interannual Variability of the Mid-winter Storm-tracks and their Relationship to Global Warming

  Masaru Inatsu, Masahide Kimoto

  SOLA 1 61 - 64 2005年 [査読有り][通常論文]
   

  A global warming response, interannual variability, and their relationship have been examined on mid-winter storm-tracks, using a high-resolution atmospheric general circulation model. In the western Pacific, global warming makes the storm-track stronger and the westerly jet weaker, closely related to the leading mode of the storm-track variability. Much projection onto the leading mode is also realized for the global warming response in the Western Hemisphere; the storm-track is suppressed along with weaker zonal wind there at least in this model. It is therefore found that there are two types of interannual variability of storm-tracks (one for the western Pacific and the other for the Western Hemisphere), both mostly explain the global warming response.
• The zonal asymmetry of the Southern Hemisphere winter storm track

  M Inatsu, BJ Hoskins

  JOURNAL OF CLIMATE 17 24 4882 - 4892 2004年12月 [査読有り][通常論文]
   

  Atmospheric general circulation model experiments have been performed to investigate how the significant zonal asymmetry in the Southern Hemisphere ( SH) winter storm track is forced by sea surface temperature ( SST) and orography. An experiment with zonally symmetric tropical SSTs expands the SH upper-tropospheric storm track poleward and eastward and destroys its spiral structure. Diagnosis suggests that these aspects of the observed storm track result from Rossby wave propagation from a wave source in the Indian Ocean region associated with the monsoon there. The lower-tropospheric storm track is not sensitive to this forcing. However, an experiment with zonally symmetric midlatitude SSTs exhibits a marked reduction in the magnitude of the maximum intensity of the lower-tropospheric storm track associated with reduced SST gradients in the western Indian Ocean. Experiments without the elevation of the South African Plateau or the Andes show reductions in the intensity of the major storm track downstream of them due to reduced cyclogenesis associated with the topography. These results suggest that the zonal asymmetry of the SH winter storm track is mainly established by stationary waves excited by zonal asymmetry in tropical SST in the upper troposphere and by local SST gradients in the lower troposphere, and that it is modified through cyclogenesis associated with the topography of South Africa and South America.
• Atmospheric response to Zonal variations in midlatitude SST: Transient and stationary eddies and their feedback

  M Inatsu, H Mukougawa, SP Xie

  JOURNAL OF CLIMATE 16 20 3314 - 3329 2003年10月 [査読有り][通常論文]
   

  Midwinter storm track response to zonal variations in midlatitude sea surface temperatures (SSTs) has been investigated using an atmospheric general circulation model under aquaplanet and perpetual-January conditions. Zonal wavenumber-1 SST variations with a meridionally confined structure are placed at various latitudes. Having these SST variations centered at 30degreesN leads to a zonally localized storm track, while the storm track becomes nearly zonally uniform when the same SST forcing is moved farther north at 408 and 50degreesN. Large (small) baroclinic energy conversion north of the warm (cold) SST anomaly near the axis of the storm track (near 40degreesN) is responsible for the large (small) storm growth. The equatorward transfer of eddy kinetic energy by the ageostrophic motion and the mechanical damping are important to diminish the storm track activity in the zonal direction. Significant stationary eddies form in the upper troposphere, with a ridge (trough) northeast of the warm (cold) SST anomaly at 30degreesN. Heat and vorticity budget analyses indicate that zonally localized condensational heating in the storm track is the major cause for these stationary eddies, which in turn exert a positive feedback to maintain the localized storm track by strengthening the vertical shear near the surface. These results indicate an active role of synoptic eddies in inducing deep, tropospheric-scale response to midlatitude SST variations. Finally, the application of the model results to the real atmosphere is discussed.
• 季節内から数十年スケール気候変動の数値的研究

  山崎孝治, 向川 均, 谷本陽一, 石渡正樹, 稲津將, 謝尚平, 岡島秀樹, 奥村夕子

  東京大学気候システム研究センター 平成14年度共同研究報告書 pp.101-130 2003年 [査読無し][通常論文]
  
• Stationary eddy response to surface boundary forcing: Idealized GCM experiments

  M Inatsu, H Mukougawa, SP Xie

  JOURNAL OF THE ATMOSPHERIC SCIENCES 59 11 1898 - 1915 2002年06月 [査読有り][通常論文]
   

  A set of atmospheric general circulation model (AGCM) experiments under idealized conditions is performed to investigate atmospheric response to surface boundary forcing by extratropical land-sea contrast, large-scale orography, and tropical sea surface temperature (SST) distribution. Stationary eddies forced by the extratropical land-sea distribution are strongest in high latitudes, but their amplitudes are modest and comparable to internal chaotic variability. By contrast, the stationary eddy response to zonal variations in tropical SST is strong and robust in both the subtropics and midlatitudes. While these SST-forced stationary waves are trapped within the troposphere, those induced by orography show a strong vertical propagation into the stratosphere. Analysis of transient eddies indicates that orography is effective in generating a zonally localized storm track while extratropical land-sea contrast has little effect on the zonal variation of upper-level storm activity. A vorticity budget analysis is carried out to understand tropical SST forcing mechanism to set up extratropical stationary eddies. In the subtropics, the dominant balance is reached between the vortex stretching and zonal advection. North of the tropical warm water pool, a subtropical anticyclone forms in the upper troposphere in response to the divergence of the locally enhanced Hadley circulation. The authors further show that this subtropical response to tropical SST variations has nonlinear characteristics in both its amplitude and zonal phase.
• Tropical and extratropical SST effects on the midlatitude storm track

  Masaru Inatsu, Hitoshi Mukougawa, Shang-Ping Xie

  Journal of the Meteorological Society of Japan 80 4 B 1069 - 1076 2002年 [査読有り][通常論文]
   

  Effects of zonal variations in sea surface temperature (SST) on synoptic eddy activity are examined using an atmospheric general circulation model under the perpetual January and the aqua-planet conditions. In the presence of zonal variations in tropical SST, upper tropospheric zonal wind displays large zonal asymmetry and the storm track is located downstream of the maximum westerly speed. When only extratropical SST varies in the east-west direction, a storm track develops along the sharp meridional SST gradient despite a nearly zonally uniform westerly jet in the upper troposphere. The latter result suggests that zonal variations in upper tropospheric westerlies contribute to but are not necessary for zonally confined storm tracks.
• Formation of subtropical westerly jet core in an idealized GCM without mountains

  Masaru Inatsu, Hitoshi Mukougawa, Shang-Ping Xie

  Geophysical Research Letters 27 4 529 - 532 2000年02月15日 [査読有り][通常論文]
   

  In boreal winter, subtropical westerlies in the upper troposphere reach maxima in speed over the eastern edges of the Asian and North American continents. The zonal variations in the westerlies are generally attributed to large-scale orography and thermal forcing, but the latter mechanism remains largely unsubstantiated. Here we conduct general circulation model (GCM) experiments without orography to identify the most important thermal forcing for generating zonal asymmetries in subtropical westerlies. By changing sea surface temperature (SST) distribution in the GCM, we find that the tropical SST distribution plays a decisive role in producing a subtropical jet core to the north of the tropical warm water pool, while the effects of extratropical continent-ocean heating contrast on upper-level zonal wind speed distribution are secondary. The results from Aqua Planet runs further support this conclusion.
• Formation of subtropical westerly jet core in an idealized GCM without mountains

  M Inatsu, H Mukougawa, SP Xie

  GEOPHYSICAL RESEARCH LETTERS 27 4 529 - 532 2000年02月 [査読有り][通常論文]
   

  In boreal winter, subtropical westerlies in the upper troposphere reach maxima in speed over the eastern edges of the Asian and North American continents. The zonal variations in the westerlies are generally attributed to large-scale orography and thermal forcing, but the latter mechanism remains largely unsubstantiated. Here we conduct general circulation model (GCM) experiments without orography to identify the most important thermal forcing for generating zonal asymmetries in subtropical westerlies. By changing sea surface temperature (SST) distribution in the GCM, we find that the tropical SST distribution plays a decisive role in producing a subtropical jet core to the north of the tropical warm water pool, while the effects of extratropical continent-ocean heating contrast on upper-level zonal wind speed distribution are secondary. The results from Aqua:Planet runs further support this conclusion.

書籍

• 気象学の教科書

  稲津, 將 
  成山堂書店 2022年02月 (ISBN: 9784425554614) ix, 203p, 図版 [8] p
• 特別解説・2021年ノーベル賞を読み解く 物理学賞Part I 気候の物理的なモデル化と変動の定量化から地球温暖化を確実に予測, 月刊「化学」

  高薮 出, 稲津 將, 野沢 徹 
  2021年
• 北海道の最新農業気象(2021年ニューカントリー秋季増刊号)

  広田 知良, 中辻 敏朗, 小南 靖弘監修 (担当:分担執筆範囲:第７章１)
  北海道協同組合通信社 2021年
• 低温環境の科学事典

  河村 公隆、大島 慶一郎、小達 恒夫、川村 賢二、佐﨑 元、杉山 慎、関 宰、高橋 晃周、西岡 純、原 登志彦、福井 学、藤吉 康志、三寺 史夫、宮﨑 雄三、本山 秀明、渡部 直樹編 (担当:分担執筆範囲:第10-3節)
  朝倉書店 2016年07月 (ISBN: 9784254161281) xii, 411p, 図版 [8] p
• 解ける！使える！微分方程式

  稲津將 
  北海道大学出版会 2016年
• 天気と気象についてわかっていることいないこと

  在田一則, 竹下徹, 見延庄士郎, 渡部重人編 (担当:分担執筆範囲:第１章)
  ベレ出版 2013年
• 地球惑星科学入門

  筆保弘徳, 芳村圭編 (担当:分担執筆範囲:第１９章、第２０章)
  北海道大学出版会 2010年

講演・口頭発表等

• 温暖化気候における望月寒川 (札幌市)の氾濫リスクの推定  [通常講演]

  金盛 友香, 稲津 將, 鶴巻 亮一, 星野 剛, 山田 朋人, 松岡 直基, 佐藤 陽祐

  日本気象学会2021年秋季全国大会 2021年12月
• 北海道において強い降水をもたらす低気圧の温暖化解析  [通常講演]

  川添 祥, 稲津 將, 山田 朋人, 星野 剛

  日本気象学会2021年秋季全国大会 2021年12月
• ウンカ類飛来予測モデルによる2003年夏期のトビイロウンカ再現実験  [通常講演]

  大石 渓登、稲津 將

  日本農業気象学会北海道支部研究発表会 2021年12月
• 自己組織化写像を用いた北海道における豪雪予測  [通常講演]

  稲津 將, 川添 祥, 森 正人

  日本気象学会2021年秋季全国大会 2021年12月
• 2017/2018年冬季における北海道の吹雪発生マップの作成  [通常講演]

  丹治 星河, 稲津 將, 川添 祥, 佐藤 陽祐

  雪氷研究大会(２０２１・千葉-オンライン) 2021年09月
• Examining climate change impacts on heavy snowfall in Hokkaido using large ensemble simulations  [通常講演]

  Sho Kawazoe, Masaru Inatsu

  The Fifth Convection-Permitting Modeling Workshop 2021 2021年09月
• 気象モデルSCALEを用いた北海道を対象とした降雪研究  [通常講演]

  佐藤 陽祐, 稲津 將, 勝山 祐太, 丹治 星河, 近藤 誠

  雪氷研究大会(２０２１・千葉-オンライン) 2021年09月
• 自己組織化写像を用いた北海道における豪雪予測  [通常講演]

  稲津 將, 川添 祥, 森 正人

  日本気象学会北海道支部2021第１回研究発表会 2021年07月
• 札幌におけるシラカバ花粉の高解像度予測システムの開発  [通常講演]

  稲津 將, 吉田 遼, 狩野翔太, 武内伸治, 小林 智

  日本気象学会2021春季全国大会 2021年05月
• 防雪柵まわりに発生する吹きだまり形成の数値実験  [通常講演]

  丹治 星河, 稲津 將, 大風 翼

  日本気象学会2021春季全国大会 2021年05月
• 札幌において豪雪をもたらす大気場と将来変化検証  [通常講演]

  川添 祥, 稲津 將, 山田 朋人, 星野 剛

  日本気象学会北海道支部第２回研究発表会 2020年12月
• 大規模アンサンブル気象データを用いた北海道のバレイショへの気候変動影響の確率的評価  [通常講演]

  菅原 邦泰, 稲津 將, 下田 星児, 村上 貴一, 広田 知良

  日本気象学会北海道支部第２回研究発表会 2020年12月
• Manabe and Möller, 1961の再実験に向けて（１）長波および短波の吸収  [通常講演]

  平田 憲, 稲津 將, 関口 美保

  日本気象学会北海道支部第２回研究発表会 2020年12月
• 格子ボルツマン法を用いた吹きだまりモデルの開発  [通常講演]

  丹治星河, 稲津將, 大風翼

  雪氷研究大会(２０２０・オンライン) 2020年11月
• ディストロメーターの測定方式による降雪粒子観測の違い  [通常講演]

  勝山祐太, 稲津將, 丹治星河, 川島正行

  雪氷研究大会(２０２０・オンライン) 2020年11月
• 台風に伴う気象現象と流れ構造の関係のデータ解析  [通常講演]

  森中 宏樹, 石原 卓, 稲津 將

  日本流体力学会 2020年09月
• Climate change adaptation to disaster in urban areas  [通常講演]

  M. Inatsu

  Japan Geoscience Union 2020年07月
• Evaluation of microphysical schemes in a meteorological model for winter snowfall events in Hokkaido  [通常講演]

  M Kondo, Y Sato, M Inatsu, Y Katsuyama

  JpGU Annual meeting 2020 2020年07月
• Mode-decomposed equation diagnosis for atmospheric blocking development  [通常講演]

  M. Inatsu, T. Aikawa, N. Nakano

  Annual Meeting of European Geoscience Union 2020年05月
• Case Study of Blowing Snow Potential Diagnosis with Dynamical Downscaling  [通常講演]

  S. Tanji, M. Inatsu

  Annual Meeting of European Geoscience Union 2020年05月
• 気候変動による北海道のバレイショ生産への影響の評価  [通常講演]

  菅原 邦泰, 稲津 將, 廣田 知良, 下田 星児, 村上 貴一

  日本気象学会2020年度春季大会 2020年05月
• 気候変動による北海道のバレイショ生産への影響の検討  [通常講演]

  菅原 邦泰, 稲津 將, 廣田 知良, 下田 星児, 村上 貴一

  日本農業気象学会2020年全国大会 2020年03月
• Evaluation of Tornadic Environments for Japan Using Multiple Data Sources and Their Potential Responses under Future Climate Change  [通常講演]

  S. Kawazoe, M. Fujita, S. Sugimoto, Y. Okada, S. Watanabe, M. Inatsu

  Annual Meeting of American Meteorological Society 2020年01月
• Mode-Decomposed Equation Diagnosis for Atmospheric Blocking Development  [通常講演]

  M. Inatsu, T. Aikawa, N. Nakano

  Annual Meeting of American Meteorological Society 2020年01月
• 高速道路上における通行止め情報と気象シミュレーションによる吹雪推定  [通常講演]

  稲津 將, 丹治 星河, 佐藤 陽祐

  日本気象学会北海道支部第２回研究発表会 2019年12月
• 冬季北海道の降雪粒子を対象とした気象モデルの検証と降雪粒子の雲微物理特性  [通常講演]

  近藤 誠, 稲津 將, 佐藤 陽祐, 勝山 祐太, 丹治 星河

  日本気象学会北海道支部第２回研究発表会 2019年12月
• モード分解方程式による大気ブロッキング成長の診断  [通常講演]

  稲津 將, 相河 卓哉, 中野 直人

  日本気象学会秋季大会 2019年10月
• 気象庁１か月アンサンブル予報を用いた夏季北海道における低温偏差の予測可能性  [通常講演]

  菅原 邦泰, 稲津 將

  日本気象学会秋季大会 2019年10月
• 混合確率分布の粒径・落下速度分布への適用  [通常講演]

  勝山 祐太, 稲津 將

  日本気象学会秋季大会 2019年10月
• 夏季の北海道における多湿環境の地球温暖化変化  [通常講演]

  高畠 大地, 稲津 將

  日本気象学会秋季大会 2019年10月
• 格子ボルツマン法による吹きだまり形成のシミュレーションと防雪柵による吹きだまり分布の違い  [通常講演]

  丹治 星河, 稲津 將

  日本気象学会秋季大会 2019年10月
• 安価なビデオディスドロメーターと2DVDとの比較  [通常講演]

  勝山 祐太, 稲津 將, 藤吉 康志

  日本雪氷学会雪氷研究大会 2019年09月
• 格子ボルツマン法を用いた吹きだまりモデル開発に向けて  [通常講演]

  丹治 星河, 稲津 將

  日本雪氷学会雪氷研究大会 2019年09月
• 夏季の北海道における多湿環境の地球温暖化応答  [通常講演]

  高畠 大地, 稲津 將

  日本気象学会北海道支部第１回研究発表会 2019年07月
• アンサンブルスプレッドを活かしたガイダンスの精度向上  [通常講演]

  相河 卓哉, 稲津 將

  日本気象学会北海道支部第２回研究発表会 2018年12月
• 力学的ダウンスケーリングの降水継続時間バイアスに対する水文学的応答  [通常講演]

  玉置 雄大, 稲津 將, 山田 朋人

  日本気象学会北海道支部第２回研究発表会 2018年12月
• 気候変動シミュレーションとダウンスケーリングの基礎  [通常講演]

  稲津 將

  第31回アゲールシンポジウム 2018年11月 口頭発表（招待・特別）
• 複数の力学的ダウンスケーリグに基づいた北海道全域における積雪の地球温暖化影響評価  [通常講演]

  勝山 祐太, 稲津 將, 白川 龍生

  日本気象学会秋季大会 2018年10月
• Global warming response of snowpack in Hokkaido, Northern island of Japan  [通常講演]

  Katsuyama, Y, M. Inatsu, T. Shirakawa

  International Snow Science Workshop 2018年10月
• Predictability of wintertime stratospheric circulation examined by non-stationary fluctuation dissipation relation  [通常講演]

  Inatsu, M., N. Nakano, H. Mukougawa, and S. Kusuoka

  International Conference on Subseasonal;to Decadal Prediction 2018年09月 ポスター発表
• An alternative estimate of potential predictability on the Madden-Julian Oscillation phase space using S2S models  [通常講演]

  Inatsu, M, Y. Ichikawa

  International Conference on Subseasonal to Decadal Prediction 2018年09月 ポスター発表
• SNOWPACK モデルを用いた北海道全域における積雪の地球温暖化影響評価  [通常講演]

  勝山 祐太, 稲津 將, 白川 龍生

  日本雪氷学会雪氷研究大会 2018年09月 その他
• 力学的ダウンスケーリングに基づく吹雪の発生可能性の事例解析  [通常講演]

  丹治星河, 稲津 將

  日本雪氷学会雪氷研究大会 2018年09月 その他
• Global distribution of mergers and splits of oceanic mesoscale eddies  [通常講演]

  Ishiyama, H, H. Ueno, M. Inatsu, S. Itoh

  Fluxed and structures in fluids 2018年08月 ポスター発表
• 夏季九州での強降水イベントにおける継続時間バイアスと総観場の関係  [通常講演]

  玉置 雄大, 稲津 將, Dzung Nguyen-Le, 山田 朋人

  日本気象学会北海道支部第１回研究発表会 2018年07月
• 力学的ダウンスケーリグに基づく吹雪の発生可能性の事例解析  [通常講演]

  丹治 星河, 稲津 將

  日本気象学会北海道支部第１回研究発表会 2018年07月
• 北海道全域における積雪の地球温暖化影響評価  [通常講演]

  勝山 祐太, 稲津 將, 白川龍生

  日本気象学会北海道支部第１回研究発表会 2018年07月
• Heavy rainfall duration bias in dynamical downscaling and its related synoptic patterns in summertime Asian monsoon  [通常講演]

  Y. Tamaki, M.Inatsu, Nguyen-Le Dzung, T. J. Yamada

  5th mesoscale meteorology seminar 2018年06月 ポスター発表
• Development and application of neighbour enclosed area tracking  [招待講演]

  稲津 將

  Japan Geoscience Union 2018 2018年05月
• 札幌における高解像度シラカバ花粉飛散シミュレーション (1) シラカバ樹木分布図作成  [通常講演]

  吉田 遼, 稲津 將, 武内 伸治, 小林 智

  日本気象学会北海道支部第2回研究発表会 2017年12月
• 札幌における高解像度シラカバ花粉飛散シミュレーション (1) シラカバ樹木分布図作成  [通常講演]

  吉田 遼, 稲津 將, 武内 伸治, 小林 智

  花粉学会 2017年09月
• Characteristics of Aleutian eddy and its impact on Chlorophyll distribution  [通常講演]

  Ishiyama, H, U. Hiromichi, M. Inatsu

  PICES 2017年09月
• 北半球冬季のブロッキング形成過程における再解析および予報データに対する渦度収支解析  [通常講演]

  相河卓哉, 稲津將

  日本気象学会北海道支部第１回研究発表会 2017年07月
• 夏季九州における力学的ダウンスケーリングの強降水継続時間のバイアスとそれに関係する総観場  [通常講演]

  玉置雄大, 稲津將, Nguyen-Le Dzung, 山田朋人

  日本気象学会春季大会 2017年05月
• パーシステント・ホモロジーによる低気圧・前線トラッキング  [通常講演]

  稲津 將, 加藤颯人, 平岡裕章, 大林一平

  日本気象学会春季大会 2017年05月
• Response of Tropical Cyclone Tracks to Sea Surface Temperature in the Western North Pacific  [通常講演]

  Inatsu, M, K. Katsube

  AGU 2016年12月
• 台風の強度と経路に関する海面水温のみの効果の抽出  [通常講演]

  稲津將

  日本農業気象学会北海道支部大会 2016年12月
• Global warming response of snowpack at a site in northern Japan estimated using multiple dynamically downscaled data  [通常講演]

  Katsuyama, Y, M. Inatsu, K. Nakamura, S. Matoba

  AGU 2016年12月
• 北太平洋における海面水温が台風経路に及ぼす影響  [通常講演]

  稲津將

  台風研究会 2016年11月
• 海道における原子力防災対策  [通常講演]

  稲津將

  第57回大気環境学会年会 2016年09月
• Long-term assessment of airborne radio-cesium after the Fukushima nuclear accident: re-suspension from soil and vegetation and the premises of the power plant  [通常講演]

  Kajino, M, M. Ishizuka, Y. Igarashi, K. Kita, C. Yoshikawa, M. Inatsu

  European Aerosol Conference 2016年09月
• 平洋における海面水温が台風経路に及ぼす影響  [通常講演]

  稲津 將, 勝部 弘太郎

  日本気象学会北海道支部第１回研究発表会 2016年06月
• 複数の力学的ダウンスケーリングに基づくニセコにおける積雪の将来変化  [通常講演]

  勝山祐太, 稲津 將, 中村一樹

  日本気象学会北海道支部第１回研究発表会 2016年06月
• Long-term assessment of airborne radio-cesium after the Fukushima nuclear accident: re-suspension from soil and vegetation and the premises of the power plant  [通常講演]

  Kajino, M, M. Ishizuka, Y. Igarashi, K. Kita, C. Yoshikawa, M. Inatsu

  Goldschmidt 2016 2016年06月
• 原発事故由来の放射性セシウム大気濃度の長期解析：土壌、植物からの再飛散  [通常講演]

  梶野瑞王, 石塚雅秀, 五十嵐康人, 北和之, 吉川知里, 稲津將

  日本地球惑星科学連合大会 2016年05月
• Methods to evaluate prediction skill in the Madden-Julian oscillation phase space  [通常講演]

  Ichikawa, Y, M. Inatsu

  JpGU 2016年05月
• 北太平洋における海面水温が台風経路に及ぼす影響  [通常講演]

  稲津 將, 勝部 弘太郎

  日本気象学会2016年度春季大会 2016年05月
• 力学的ダウンスケーリングに基づく北海道東部における年最大土壌凍結深の将来予測  [通常講演]

  稲津 將, 冨永純平, 勝山祐太, 廣田知良

  日本気象学会2016年度春季大会 2016年05月
• Long-term assessment of airborne radio-cesium after the Fukushima nuclear accident: re-suspension from soil and vegetation and the premises of the power plant  [通常講演]

  Kajino, M, M. Ishizuka, Y. Igarashi, K. Kita, C. Yoshikawa, M. Inatsu

  EGU 2016年04月
• Response of tropical cyclone tracks to sea surface temperature in western North Pacific  [通常講演]

  Inatsu, M, K. Katsube

  EGU 2016年04月
• ntercomparison of mid latitude storm diagnostics (IMILAST) ? overview of project results  [通常講演]

  Neu, U, Coauthors

  EGU 2016年04月
• Sampling downscaling method and its application to Hokkaido summer climate  [通常講演]

  Tamaki, Y, M. Inatsu, N. Nakano, R. Kuno

  EGU 2016年04月
• 力学的ダウンスケーリングに基づく北海道東部における年最大土壌凍結深の将来予測  [通常講演]

  冨永純平, 稲津將, 廣田知良

  日本農業気象学会北海道支部大会 2015年12月
• Response of tropical cyclone tracks to sea surface temperature in western North Pacific  [通常講演]

  Inatsu, M, K. Katsube

  Satellite Session of 18th SNU-HU joint symposium 2015年11月
• 北海道ニセコにおける地球温暖化による積雪変化の推定  [通常講演]

  勝山祐太, 稲津 將, 中村一樹

  日本雪氷学会雪氷研究大会 2015年09月
• Application of a topological-computation method to meteorological data  [通常講演]

  森田 英俊, 稲津 將, 國府 寛司

  2015年日本応用数理学会年会 2015年09月
• 確率微分方程式を用いた成層圏・対流圏の予測可能性の解析  [通常講演]

  稲津 將, 中野直人, 楠岡誠一郎, 向川均

  日本応用数理学会 2015年09月
• RECCA北海道「近未来ビューワ」の開発と公開  [通常講演]

  小松麻美, 小倉勉, 松岡直基, 佐藤隆光, 山田朋人, 稲津將, 佐藤友徳

  土木学会地球環境シンポジウム 2015年09月
• 北海道における降水量予測値による土壌流亡量  [通常講演]

  鵜木啓二, 山田朋人, 稲津 將, 佐藤友徳, 松岡直基, 中村和正

  農業農村工学会 2015年09月
• 気象学の色遣い  [通常講演]

  稲津 將, 濱田 篤

  日本気象学会北海道支部第１回研究発表会 2015年06月
• 北海道における気候変動適応研究のための水文・気象ダウンスケールデータの情報公開ツール「近未来ビューワ」の開発  [通常講演]

  小松麻美, 小倉勉, 松岡直基, 佐藤隆光, 山田朋人, 稲津將, 佐藤友徳

  日本気象学会2015年度春季大会 2015年05月
• 確率微分方程式を用いた成層圏・対流圏の予測可能性の解析  [通常講演]

  稲津 將

  日本気象学会2015年度春季大会 2015年05月
• 確率微分方程式モデルを用いたベクトル時系列データ解析におけるアンサンブル予測可能性評価  [通常講演]

  中野直人, 稲津將, 楠岡誠一郎, 齊木吉隆

  日本数学会2015年会 2015年03月
• 確率微分方程式モデルを用いたベクトル時系列データ解析における予測可能性評価  [通常講演]

  中野直人, 稲津將, 楠岡誠一郎, 齊木吉隆

  応用数学合同研究集会 2014年12月
• Global distributions of merger and split of oceanic mesoscale eddies  [通常講演]

  Ishiyama, H, H. Ueno, M. Inatsu, S. Itoh

  AGU 2014年12月
• 非定常揺動散逸定理による冬季成層圏循環の予測可能性  [通常講演]

  稲津 將, 中野直人, 楠岡誠一郎, 向川均

  日本気象学会2014年度秋季大会 2014年10月
• 海道における夏季気候変動に関するマルチＧＣＭ×マルチＲＡＭ実験により力学的ダウンスケーリング  [通常講演]

  稲津 將, 佐藤友徳, 山田朋人, 久野龍介, 杉本志織, M. A. Farukh, Yadu N. Pokhrel, 呉修一

  日本気象学会2014年度秋季大会 2014年10月
• 全球における海洋中規模渦の合併と分裂  [通常講演]

  石山 宙夢, 上野 洋路, 稲津 將, 伊藤幸彦

  日本海洋学会2014年度秋季大会 2014年09月
• Development of sampling downscaling  [招待講演]

  Inatsu Masaru

  AOGS, 2014年08月
• Development and Application of Comprehensive Downscaling Methods for Hokkaido Region  [招待講演]

  Yamada, T. J, M. Inatsu, T. Sato, K. Nakamura, S. Sugimoto, M. Farukh, A. Komatsu, N. Matsuoka

  AOGS 2014年07月
• Sampling downscaling method and its application to Hokkaido summer climate  [通常講演]

  Tamaki, Y, M. Inatsu, N. Nakano, R. Kuno

  21st Century Challenges in Regional Climate Modelling 2014年06月
• 非定常揺動散逸定理による冬季成層圏循環の予測可能性  [通常講演]

  稲津 將, 中野直人, 楠岡誠一郎, 向川均

  日本気象学会北海道支部2014年度第1回研究発表会 2014年06月
• 北海道における夏季気候変動に関するマルチＧＣＭ×マルチＲＡＭ実験により力学的ダウンスケーリング  [通常講演]

  稲津 將, 佐藤友徳, 山田朋人, 久野龍介, 杉本志織, M. A. Farukh, Yadu N. Pokhrel, 呉修一

  日本気象学会北海道支部2014年度第1回研究発表会 2014年06月
• 気象庁1か月予報によるマッデン・ジュリアン振動の予測可能性  [通常講演]

  市川 悠衣子, 稲津 將

  日本気象学会北海道支部2014年度第1回研究発表会 2014年06月
• 北海道における豪雨・豪雪の再現性に対する多段ネストの効果  [通常講演]

  稲津 將, 高橋良輔

  日本気象学会2014年度春季大会 2014年05月
• ガーナにおける気象情報の空間詳細化  [通常講演]

  中山 翼, 稲津 將, 松田 浩敬, 前田 芳恵

  日本気象学会2014年度春季大会 2014年05月
• 海面水温を変えた熱帯低気圧の温帯低気圧化の数値実験  [通常講演]

  勝部 弘太郎, 稲津 將

  日本気象学会2014年度春季大会 2014年05月
• 夏季北海道におけるサンプリングダウンスケーリング  [通常講演]

  玉置雄大, 稲津將, 久野龍介, 中野直人

  日本気象学会2014年度春季大会 2014年05月
• 札幌におけるシラカバ花粉の日飛散量の重回帰予測  [通常講演]

  稲津 將, 小林 智, 武内 伸治, 大森 杏奈

  日本気象学会2014年度春季大会 2014年05月
• 気象庁1 か月予報におけるマッデンジュリアン振動の予測可能性  [通常講演]

  市川悠衣子, 稲津 將

  日本気象学会2014年度春季大会 2014年05月
• Conley-Morseグラフの方法による気象ダイナミクスの時系列データ解析  [通常講演]

  森田 英俊, 稲津 將, 國府 寛司

  2013年度物理学会 2014年03月
• Application of a topological-computation method to meteorological data  [通常講演]

  森田 英俊, 稲津 將, 國府 寛司

  2013年度応用数学合同研究集会 2013年12月
• 多段ネストによる北海道の豪雪事例の再現性の検証  [通常講演]

  高橋 良輔, 稲津 將

  農業気象学会北海道支部2013年度大会 2013年11月
• Dynamics and practical predictability of extra-tropical wintertime low-frequency variability in a low-dimensional system.  [招待講演]

  Inatsu, M, N. Nakano, H. Mukougawa

  RIMS International Conference on Theoretical Aspects of Variability and Predictability in Weather and Climate Systems. 2013年10月
• Mixture of dynamical downscaling and statistical downscaling  [招待講演]

  Inatsu, M, R. Kuno, N. Nakano

  2013年10月
• 確率微分方程式を用いた時系列解析における統計的係数決定公式と軌道の予測可能性  [通常講演]

  中野 直人, 斉木 吉隆, 稲津 將, 楠岡 誠一郎

  日本数学会2013年度秋期総合分科会 2013年09月
• 北太平洋における海洋中規模渦の合併と分裂  [通常講演]

  石山 宙夢, 上野 洋路, 稲津 將

  日本海洋学会2013年度秋季大会 2013年09月
• ガーナにおける気象情報の空間詳細化  [通常講演]

  中山 翼, 稲津 將

  日本気象学会北海道支部2013年度第1回研究発表会 2013年06月
• 多段ネストによる北海道の豪雪事例の再現性の検証  [通常講演]

  高橋 良輔, 稲津 將

  日本気象学会北海道支部2013年度第1回研究発表会 2013年06月
• 海面水温を変えた熱帯低気圧の温帯低気圧化の数値実験  [通常講演]

  勝部 弘太郎, 稲津 將

  日本気象学会北海道支部2013年度第1回研究発表会 2013年06月
• 時系列データに対する確率微分方程式モデルの統計的係数決定公式と軌道の予測可能性について  [通常講演]

  中野 直人, 斉木 吉隆, 稲津 將, 楠岡 誠一郎

  RIMS 共同研究「偏微分方程式の背後にある確率過程と解の族が示す統計力学学的な現象の解析」 2013年02月
• 時系列データに対する確率微分方程式モ デルの統計的係数決定公式と軌道の予測可能性について  [通常講演]

  中野 直人, 斉木 吉隆, 稲津 將, 楠岡 誠一郎

  文科省ワークショップ「地球気象気候現象のデータ解析とモデルの精密化」 2012年12月
• Development of sampling downscaling  [通常講演]

  Kuno, R, M. Inatsu

  AGU fall meeting 2012年12月
• 隣接閉領域トラッキング法を用いた上部対流圏の渦の力学と形状  [通常講演]

  稲津 將, 天田 祥太郎

  日本気象学会2012年度秋季大会 2012年10月
• 低次元系確率微分方程式による中高緯度冬季の長周期変動の力学と予測可能性  [通常講演]

  稲津 將, 中野 直人, 向川 均

  日本気象学会2012年度秋季大会 2012年10月
• サンプリング＝ダウンスケーリングの開発（Ⅱ） 再解析データへの適用  [通常講演]

  久野 龍介, 稲津 將

  日本気象学会2012年度秋季大会 2012年10月
• 低次元相空間における確率微分方程式を用いた季節予測可能性の評価  [通常講演]

  中野 直人, 稲津 將

  日本流体力学会年会2012 2012年09月
• 気象における渦と渦  [通常講演]

  稲津將

  渦の特徴づけ研究会 2012年08月
• サンプリング＝ダウンスケーリングの開発－手法の概要と再解析データへの適用－  [通常講演]

  久野 龍介, 稲津 將

  日本気象学会北海道支部2012年度第１回研究発表会 2012年06月
• サンプリング＝ダウンスケーリングの開発（Ⅰ）手法の概要と地域降水と共変動する大規模場の同定  [通常講演]

  久野 龍介, 稲津 將

  日本気象学会2012年度春季大会 2012年05月
• Atmospheric responses to the Gulf Stream and the Kuroshio: Similarities and differences  [通常講演]

  Minobe, S, Y. N. Sasaki, A. Kuwano-Yoshida, H. Tokinaga, T. Asai, M. Inatsu, S.-P. Xie

  JPGU 2012年05月
• A new project on development and application of comprehensive downscaling methods over Hokkaido  [通常講演]

  Inatsu, M, T. J. Yamada, T. Sato, K. Nakamura, N. Matsuoka, A. Komatsu, Y. N. Pokarel, S. Sugimoto, S. Miyazaki

  EGU 2012年04月
• 確率微分方程式を用いた気候モデルについて  [通常講演]

  中野 直人, 稲津 將, 向川 均, 楠岡 誠一郎

  RIMS共同研究「偏微分方程式の背後にある確率過程と解の族が示す統計力学学的な現象の解析」 2011年12月
• 低次元系における確率微分方程式による中高緯度冬季の長周期変動の力学と予測可能性（１）  [通常講演]

  稲津 將, 中野 直人, 向川 均

  日本気象学会北海道支部2011年度第2回研究発表会 2011年12月
• 日本付近の冬季の温帯低気圧頻度  [通常講演]

  稲津 將, 寺倉 和敬

  日本気象学会2011年度秋季大会 2011年11月
• A scale interaction study on East Asian cyclogenesis using a general circulation model coupled with an interactively nested regional model  [通常講演]

  Inatsu, M, M. Kimoto

  WCRP 2011年10月
• アリューシャン渦の形成及び伝播特性  [通常講演]

  石山 宙夢, 上野 洋路, 稲津 將

  日本海洋学会2011年度秋季大会 2011年09月
• 日本付近の冬季の温帯低気圧頻度  [通常講演]

  稲津 將, 寺倉 和敬

  気候系のhot spot:熱帯と寒帯が近接するモンスーンアジアの大気海洋結合変動」2011年度全体会議 2011年08月
• 「領域モデルを用いた気候研究」  [通常講演]

  稲津將

  北海道大学HSSセミナー 2011年06月
• 気候力学確率微分方程式の構築に向けて「地球環境流体研究と数理科学」  [通常講演]

  稲津 將, 中野 直人, 向川 均

  ワークショップ 2011年06月
• 日本付近の冬季の温帯低気圧頻度  [通常講演]

  稲津 將, 寺倉 和敬

  日本気象学会北海道支部2011年度第1回研究発表会 2011年06月
• 隣接閉領域トラッキングによる台風トラック  [通常講演]

  佐竹 祐哉, 稲津 將

  平成22年度京都大学防災研究所共同研究集会「台風研究会」 2011年01月
• 双方向ネスト実験はGCM バイアスを低減できるか？-1997年夏の例.  [通常講演]

  稲津 將, 木本 昌秀, 佐竹 祐哉

  日本気象学会2010年度秋季大会 2010年10月
• 双方向ネスト実験はGCM バイアスを低減できるか？-1997年夏の例.  [通常講演]

  稲津 將, 木本 昌秀, 佐竹 祐哉

  日本流体力学会2010年会 2010年09月
• 大気力学からの提案.  [通常講演]

  稲津將

  日本海洋学会秋季大会 2010年09月
• A scale interaction study on East Asian cyclogenesis using a general circulation model coupled with an interactively nested regional model.  [通常講演]

  Inatsu, M, M. Kimoto, Y. Satake

  NHM International Workshop 2010年08月
• 双方向ネスト実験はGCM バイアスを低減できるか？-1997年夏の例.  [通常講演]

  稲津 將, 木本 昌秀, 佐竹 祐哉

  日本気象学会北海道支部2010年度第1回研究発表会 2010年06月
• 「温暖化影響評価のためのマルチモデルアンサンブルとダウンスケーリングの研究」第１期研究の紹介.  [通常講演]

  高藪 出, 大楽 浩司, 木村 富士男, 田中 賢治, 西森 基貴, 鼎 信次郎, 稲津 將他, 参画研究者一同

  日本気象学会2010年度春季大会 2010年05月
• 冬季日本周辺で起きる爆弾低気圧の長期変化.  [通常講演]

  岩尾 航希, 稲津 將, 木本 昌秀

  日本気象学会2010年度春季大会 2010年05月
• 隣接閉領域トラッキングによる台風トラック.  [通常講演]

  佐竹 祐哉, 稲津 將, 見延 庄士郎

  日本気象学会2010年度春季大会 2010年05月
• Combing GCM and regional model: A two-way nesting approach.  [通常講演]

  Inatsu, M, M. Kimoto

  IPRC Seminar 2010年05月
• 領域大気モデル中の境界層全層における湾流に対する大気応答のメカニズム．  [通常講演]

  高玉 孝平, 見延 庄士郎, 稲津 將

  日本海洋学会春季大会 2010年03月
• 東シナ海の黒潮による梅雨への影響Ⅱ：非静力学モデル実験.  [通常講演]

  浅井 丈昭, 見延 庄士郎, 稲津 將

  日本海洋学会春季大会 2010年03月
• Contributions of different mechanisms for atmospheric response to the Gulf Stream in a regional atmospheric model.  [通常講演]

  Takatama, K, S. Minobe, M. Inatsu

  Ocean Science Meeting 2010年02月
• Influence of the Kuroshio in the East China Sea on the troposphere and relating disastrous heavy rainfall event.  [通常講演]

  Asai, T, S. Minobe, M. Inatsu

  Ocean Science Meeting 2010年02月
• The neighbor enclosed area tracking algorithm and its application to cyclone merger above the Kuroshio.  [通常講演]

  Inatsu Masaru

  Ocean Science Meeting 2010年02月
• Combing GCM and regional model: A two-way nesting approach.  [通常講演]

  Inatsu, M, M. Kimoto

  Workshop on the dynamical downscaling. 2010年01月
• 隣接閉領域トラッキングによる台風トラック.  [通常講演]

  佐竹 祐哉, 稲津 將, 見延 庄士郎

  日本気象学会北海道支部2009年度第2回研究発表会 2009年12月
• 東シナ海の黒潮による梅雨への影響：降水集中化の可能性.  [通常講演]

  浅井 丈昭, 見延 庄士郎, 稲津 將

  日本気象学会北海道支部2009年度第2回研究発表会 2009年12月
• 隣接閉領域トラッキングを用いた対流圏上層における渦挙動の気候学的解析.  [通常講演]

  天田 祥太郎, 稲津 將

  日本気象学会北海道支部2009年度第2回研究発表会 2009年12月
• 隣接閉領域トラッキング.  [通常講演]

  稲津將

  日本気象学会秋季大会 2009年11月
• 隣接閉領域トラッキング.  [通常講演]

  稲津將

  平成21年度京都大学防災研究所特定共同研究集会「異常気象と長期変動」 2009年10月
• 東シナ海の黒潮による梅雨への影響：降水集中化の可能性  [通常講演]

  見延 庄士郎, 浅井 丈昭, 稲津 將

  日本海洋学会秋季大会 2009年10月
• 隣接閉領域トラッキング.  [通常講演]

  稲津將

  日本気象学会北海道支部2009年度第1回研究発表会 2009年06月
• 北半球冬季の北東アジアにおけるスケール間相互作用研究（2）亜総観規模山岳の効果  [通常講演]

  稲津 將, 木本 昌秀

  日本気象学会春季大会 2009年05月
• Influence of the Kuroshio in the East China Sea on the atmosphere.  [招待講演]

  Minobe, S, T. Asai, M. Miyashita, K. Takatama, M. Inatsu

  The 15th Pacific-Asian Marginal Seas Meeting 2009年04月
• A scale interaction study on East Asian cyclogenesis using a general circulation model with an interactively nested regional model.  [通常講演]

  Inatsu, M, M. Kimoto

  AGU fall meeting 2008年12月
• 北半球冬季の北東アジアにおけるスケール間相互作用研究 (1) 亜総観規模擾乱の効果  [通常講演]

  稲津 將, 木本 昌秀

  日本気象学会秋季大会 2008年11月
• 域大気モデル中の湾流に対する大気応答のメカニズム  [通常講演]

  高玉 孝平, 見延 庄士郎, 稲津 將

  平成20年度京都大学防災研究所特定共同研究集会「気候変動と異常気象─メカニズムと予測可能性」 2008年10月
• ジェット＝ストリームの謎を気候モデルで解く  [招待講演]

  稲津將

  日本気象学会北海道支部会夏期大学 2008年07月
• インタラクティブネスティングシステム（INCL）を用いた小規模温帯低気圧が気候に及ぼす影響（１）小規模渦の効果.  [通常講演]

  稲津 將, 木本 昌秀

  日本気象学会北海道支部2008年度第1回研究発表会 2008年06月
• 南半球インド洋から伝播する定常波変動に関する解析  [通常講演]

  稲津 將

  日本気象学会春季大会 2008年05月
• Stratospheric sudden warming with projected global warming and related tropospheric wave activity  [招待講演]

  Inatsu, M, M. Kimoto, A. Sumi

  JSPS-DFG Round Table on Climate System Research - Status and Perspective 2008年01月
• Climate Change Impact on Agriculture in North China Plain by Using EPIC Model and MIROC Data  [通常講演]

  楊 鵬, 稲津 將, 木本 昌秀, 陳 鮮艶

  日本農業気象学会予稿集 2007年03月
• プロジェクト１年の取り組み～双方向ネスティングシステムの開発と中国華北の冬小麦生産高の気候変動に対する応答  [通常講演]

  稲津 將, 楊 鵬, 木本 昌秀

  領域創成プロジェクト並びに気候環境アプリケーション創成コンソーシアム第1回研究会 2007年02月
• 温暖化気候における成層圏突然昇温  [通常講演]

  稲津 將, 木本 昌秀, 住 明正

  日本気象学会2006年秋季大会 2006年10月
• The stratospheric sudden warming and its global warming response in an atmosphere-ocean coupled GCM.  [通常講演]

  Inatsu, M, M. Kimoto, A. Sumi

  2nd Korea-Japan-China Joint Conference on Meteorology 2006年10月
• High-resolution coupled ocean-atmosphere modeling for climate studies.  [通常講演]

  Workshop on polar, global climate modeling, connection a, interplay

  Kimoto, M., A. Sumi, and M. Inatsu 2006年06月
• An aspect of stratospheric and tropospheric global warming response in an atmosphere-ocean coupled GCM.  [通常講演]

  Inatsu, M, M. Kimoto, A. Sumi

  Workshop on polar and global climate modeling: connection and interplay 2006年06月
• The atmosphere--ocean coupled effect in the high-resolution CCSR/NIES/FRCGC GCM.  [通常講演]

  Inatsu, M, M. Kimoto

  EGU 2006年04月
• 気候データの応用利用促進に向けて  [通常講演]

  稲津 將, 楊 鵬

  領域創成プロジェクト並びに気候環境アプリケーション創成コンソーシアム発足記念ワークショップ 2005年12月
• 南半球冬季のストームトラックの東西非一様性 --2005年度山本・正野論文賞受賞記念講演--  [通常講演]

  稲津將

  日本気象学会2005年秋季大会 2005年11月
• 高解像度CCSR/NIES/FRCGC GCMにおける大気海洋結合効果  [通常講演]

  稲津 將, 木本 昌秀

  平成17年度京都大学防災研究所特定共同研究集会「気候変動のメカニズムと予測可能性」 2005年10月
• The zonal asymmetry of the Southern Hemisphere winter storm-track.  [通常講演]

  Inatsu, M, B. J. Hoskins

  IAMAS 2005年08月
• The atmosphere--ocean coupled effect in the high-resolution CCSR/NIES/FRCGC GCM.  [通常講演]

  Inatsu, M, M. Kimoto

  IAMAS 2005年08月
• 高解像度CCSR/NIES/FRCGC GCMにおける大気海洋結合効果  [通常講演]

  稲津 將, 木本 昌秀

  日本気象学会2005年春季大会 2005年05月
• The mid-latitude storm track response to terrestrial and radiative forcings.  [通常講演]

  Inatsu, M, Brian J. Hoskins, H. Mukougawa, S.-P. Xie, M. Kimoto

  IPRC Seminar 2005年02月
• The atmosphere--ocean coupled effect in the high-resolution CCSR/NIES/FRCGC GCM.  [通常講演]

  Inatsu, M, M. Kimoto

  2005年02月
• 温暖化時のストームトラック  [通常講演]

  稲津 將, 木本 昌秀

  平成16年度京都大学防災研究所特定共同研究集会「異常気象と長期変動」 2004年10月
• 温暖化時のストームトラックの真冬の振幅極小  [通常講演]

  稲津 將, 木本 昌秀

  日本気象学会2004年秋季大会 2004年10月
• The mid-latitude storm track response to terrestrial and radiative forcings.  [通常講演]

  Inatsu, M, M. Kimoto, H. Mukougawa, S.-P. Xie, B. J. Hoskins

  The University Allied Workshop on Climate and Environmental Studies for Global Sustainability 2004年07月
• 南半球ストームトラックの東西非対称性の形成.  [通常講演]

  稲津 將, Brian J Hoskins

  日本気象学会2004年春季大会 2004年05月
• 南半球ストームトラックの東西非対称性の季節および経年変動.  [通常講演]

  稲津 將, Brian J Hoskins

  日本気象学会2004年春季大会 2004年05月
• Atmospheric response to zonal variations in mid-latitude SST: Transient and stationary eddies and their feedback.  [通常講演]

  Inatsu, M, H. Mukougawa, S.-P. Xie

  IUGG 2003 2003年07月
• Atmospheric response to zonal variations in mid-latitude SST: Transient and stationary eddies and their feedback.  [通常講演]

  Inatsu, M, H. Mukougawa, S.-P. Xie

  International Symposium on Stratospheric Variations and Climate 2002年10月
• 中緯度SST強制に対する定常波とストームトラック形成機構.  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  日本気象学会2002年秋季大会 2002年10月
• 北太平洋域でのブロッキング形成に対する大規模山岳の役割.  [通常講演]

  向川 均, 中澤 留威, 荒井 美紀, 稲津 將

  日本気象学会2002年度秋季大会 2002年10月
• 中緯度海面水温に対するストームトラックの応答.  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  特定領域研究 (B) 「成層圏力学過程とオゾンの変動およびその気候への影響」 平成13年度公開シンポジウム 2002年02月
• Formation of zonal asymmetry in wintertime circulations in an idealized AGCM: Westerly jet core, stationary eddy, and storm track.  [通常講演]

  Mukougawa, H, M. Inatsu, S.-P. Xie

  IAMAS 2001 2001年07月
• Zonally localized storm tracks in an idealized AGCM.  [通常講演]

  Inatsu, M, H. Mukougawa, S.-P. Xie

  13th Conference on Atmospheric and Oceanic Fluid Dynamics 2001年06月
• Zonal variation in westerly jet wind and storm tracks in an idealized AGCM.  [通常講演]

  Inatsu, M, H. Mukougawa, S.-P. Xie

  IPRC Seminar, 2001年06月 公開講演，セミナー，チュートリアル，講習，講義等
• 北極振動の東西非一様性を同定する境界条件  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  日本気象学会2001年春季大会 2001年05月
• GCM experiments on the impact of surface boundary conditions on the Arctic Oscillation.  [通常講演]

  Inatsu, M, H. Mukougawa, S.-P. Xie

  U.S.-Japan Seminar 2001年03月
• Formation of zonal asymmetry in wintertime circulations in an idealized AGCM: Westerly jet core, stationary eddy, and storm track.  [通常講演]

  Mukougawa, H, M. Inatsu, S.-P. Xie

  2001年03月
• On the localization of strong wind shear and storm tracks in an idealized AGCM  [通常講演]

  Inatsu, M, H. Mukougawa, S.-P. Xie

  International Workshop on Global Change 2001年01月
• 理想化したAGCMにおけるストームトラックの局在化  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  日本気象学会 2000年秋季大会 2000年10月
• 熱源分布による亜熱帯ジェットの形成  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  第12回日本気象学会夏季特別セミナー 2000年07月 公開講演，セミナー，チュートリアル，講習，講義等
• 山岳のないAGCMにおける対流圏の中高緯度の定在波動  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  日本気象学会1999年秋季大会 1999年11月
• 山岳のないAGCM における東西非一様な時間平均場の形成  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  日本気象学会1999年春季大会 1999年04月
• 山岳のないAGCM における東西非一様な時間平均場の形成  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  地球流体セミナー 1999年03月 公開講演，セミナー，チュートリアル，講習，講義等
• 偏西風とストームトラックの関係について  [通常講演]

  稲津 將, 向川 均, 謝 尚平

  日本気象学会北海道支部1998年度第2回研究発表会 1998年11月

その他活動・業績

• 複数の力学的ダウンスケーリングに基づくニセコにおける積雪の将来変化

  勝山祐太, 稲津將, 中村一樹, 的場澄人 日本気象学会大会講演予稿集 (112) 2017年
• 複数の力学的ダウンスケーリングに基づくニセコにおける積雪の将来変化

  勝山祐太, 稲津將, 中村一樹, 的場澄人 細氷(Web) (62) 2016年
• 原発事故由来の放射性セシウム大気濃度の長期解析:土壌,植物からの再飛散

  梶野瑞王, 梶野瑞王, 石塚正秀, 五十嵐康人, 北和之, 吉川知里, 稲津將 日本地球惑星科学連合大会予稿集(Web) 2016 ROMBUNNO.MAG24‐03 (WEB ONLY) 2016年 [査読無し][通常論文]
  
• P222 北海道における気候変動適応研究のための水文・気象ダウンスケールデータの情報公開ツール「近未来ビューワ」の開発(ポスターセッション)

  小松 麻美, 小倉 勉, 松岡 直基, 佐藤 隆光, 山田 朋人, 稲津 將, 佐藤 友徳 大会講演予講集 107 253 -253 2015年
• P337 確率微分方程式モデルによる時系列予測可能性解析(ポスター・セッション)

  中野 直人, 稲津 將, 楠岡 誠一郎, 斉木 吉隆 大会講演予講集 107 355 -355 2015年
• C103 確率微分方程式を用いた成層圏・対流圏の予測可能性の解析(気象庁データを利用した気象研究の現状と展望,専門分科会)

  稲津 將 大会講演予講集 107 71 -71 2015年
• 北海道ニセコにおける地球温暖化による積雪変化の推定

  勝山祐太, 稲津將, 中村一樹 雪氷研究大会講演要旨集(Web) 2015 2015年
• 北海道における夏季気候変動に関するマルチGCM×マルチRAM実験による力学的ダウンスケーリング

  稲津將, 佐藤友徳, 山田朋人, 久野龍介, 杉本志織, FARUKH M.A, POKHREL Yadu N, 呉修一 日本気象学会大会講演予稿集 106 (106) 125 -125 2014年09月30日 [査読無し][通常論文]
  
• マルチGCM‐マルチRAMダウンスケーリング実験による北海道の冬季気候予測の不確実性評価

  佐藤友徳, 稲津將, 山田朋人, 久野龍介, 杉本志織, FARUKH M.A, POKHREL Y.N, 呉修一 日本気象学会大会講演予稿集 106 (106) 477 -477 2014年09月30日 [査読無し][通常論文]
  
• 時系列データに対する確率微分方程式モデルの統計的係数決定公式と軌道の予測可能性について (偏微分方程式の背後にある確率過程と解の族が示す統計力学的な現象の解析)

  中野 直人, 稲津 將, 楠岡 誠一郎, 齊木 吉隆 数理解析研究所講究録 1919 38 -60 2014年09月
• P329 ガーナにおける気象情報の空間詳細化(ポスターセッション)

  稲津 將, 中山 翼, 松田 浩敬, 前田 芳恵 大会講演予講集 105 305 -305 2014年
• P322 海面水温を変えた熱帯低気圧の温帯低気圧化の数値実験(ポスターセッション)

  勝部 弘太郎, 稲津 將 大会講演予講集 105 298 -298 2014年
• D101 札幌におけるシラカバ花粉の日飛散量の重回帰予測(環境気象,一般口頭発表)

  稲津 將, 小林 智, 武内 伸治, 大森 杏奈 大会講演予講集 105 62 -62 2014年
• D155 夏季北海道におけるサンプリングダウンスケーリング(気候システムII,一般口頭発表)

  玉置 雄大, 稲津 將, 久野 龍介, 中野 直人 大会講演予講集 105 158 -158 2014年
• P413 北海道における豪雨・豪雪の再現性に対する多段ネストの効果(ポスターセッション)

  稲津 將, 高橋 良輔 大会講演予講集 105 370 -370 2014年
• A163 非定常揺動散逸定理を用いた冬季成層圏循環の予測可能性の解析(気候システムI,口頭発表)

  稲津 將, 中野 直人, 楠岡 誠一郎, 向川 均 大会講演予講集 106 117 -117 2014年 [査読無し][通常論文]
  
• 北海道を対象とした地域気候予測研究について

  佐藤友徳, 山田朋人, 稲津將, 中村一樹, 杉本志織, 宮崎真, 久野龍介 日本農業気象学会全国大会講演要旨 2014 88 2014年 [査読無し][通常論文]
  
• 北海道を対象とした地域気候研究の動向

  佐藤友徳, 山田朋人, 稲津將, 中村一樹, 杉本志織, 宮崎真, 久野龍介 北海道の農業気象 65 (65) 12 -22 2013年 [査読無し][通常論文]
  
• 北海道を対象とする総合的ダウンスケーリングの開発と適応

  稲津將, 山田朋人, 佐藤友徳, 中村一樹, 杉本志織, 宮崎真, 久野龍介 細氷(Web) (59) WEB ONLY 2013年 [査読無し][通常論文]
  
• P308 サンプリング=ダウンスケーリングの開発 : (I)手法の概要と地域降水と共変動する大規模場の同定(ポスター・セッション)

  久野 龍介, 稲津 將 大会講演予講集 101 338 -338 2012年
• C212 低次元系確率微分方程式による中高緯度冬季の長周期変動の力学と予測可能性(スペシャル・セッション「気象学・気候学における理論的・数理的展開」,口頭発表)

  稲津 將, 中野 直人, 向川 均 大会講演予講集 102 330 -330 2012年
• 確率微分方程式を用いた位相空間上における季節予測可 能性：理論と中高緯度冬季におけるデータ解析

  稲津 將, 中野 直人, 向川 均 平成23年度「異常気象と長期変動」研究集会報告 148 -154 2012年 [査読無し][通常論文]
  
• 第10回RSMに関する国際ワークショップ開催・参加報告

  佐藤 友徳, 石崎 紀子, 石崎 安洋, 稲津 將, 岡田 直資, 仲江川 敏之, 高藪 出, 芳村 圭, 金光 正郎 天気 58 (1) 41 -45 2011年01月31日 [査読無し][通常論文]
  
• 「なるほど!北海道のお天気」, 菅井貴子著, 北海道出版社, 2009年12月, 243頁, 1300円(本体価格), ISBN978-4-89453-524-4(本だな)

  稲津 將 天気 57 (5) 354 -354 2010年05月31日 [査読無し][通常論文]
  
• 1.大は小を兼ねるのか : ダウンスケーリング(『水循環環境科学』における分野横断的な議論のための入門解説〜ダウンスケーリング・エアロゾル・層積雲・データ同化〜)

  稲津 將, 佐藤 友徳 天気 57 (4) 195 -199 2010年04月30日 [査読無し][通常論文]
  
• 双方向ネスト実験はGCMバイアスを低減できるか? : 1997年夏の例(大気,一般講演)

  稲津 將, 木本 昌秀, 佐竹 祐哉 日本流体力学会年会講演論文集 2010 86 -86 2010年
• B202 冬季日本周辺で起きる爆弾低気圧の長期変化(気候システムII,一般口頭発表)

  岩尾 航希, 稲津 將, 木本 昌秀 大会講演予講集 97 92 -92 2010年
• A104 領域大気モデル中の境界層全層における湾流に対する大気応答のメカニズム(大気海洋相互作用,一般口頭発表)

  高玉 孝平, 見延 庄士郎, 稲津 將 大会講演予講集 97 41 -41 2010年
• A201 双方向ネスト実験はGCMバイアスを低減できるか? : 1997年夏の例(スペシャル・セッション「温暖化予測のための力学的および統計的ダウンスケーリング研究の現状と問題点」,口頭発表)

  稲津 將, 木本 昌秀, 佐竹 祐哉 大会講演予講集 98 71 -71 2010年
• D112 東シナ海の黒潮による梅雨への影響 : 降水集中化の可能性(相互作用)

  浅井 丈昭, 見延 庄士郎, 稲津 將 大会講演予講集 96 264 -264 2009年
• A408 北半球冬季の北東アジアにおけるスケール間相互作用研究 : (2)亜総観規模山岳の効果(大気力学・中高緯度大気)

  稲津 將, 木本 昌秀 大会講演予講集 95 79 -79 2009年
• P314 南半球インド洋から伝播する定常波変動に関する解析

  稲津 將 大会講演予講集 93 425 -425 2008年04月30日 [査読無し][通常論文]
  
• C212 北半球冬季の北東アジアにおけるスケール間相互作用研究 : (1)亜総観規模擾乱の効果(相互作用)

  稲津 將, 木本 昌秀 大会講演予講集 94 240 -240 2008年
• 南半球冬季ストームトラックの東西非対称性の形成について(2005年度山本・正野論文賞受賞記念講演)

  稲津 將 天気 53 (7) 537 -549 2006年07月31日 [査読無し][通常論文]
  
• B162 温暖化気候における成層圏突然昇温(スペシャルセッション「高解像度気候モデルによる中層大気研究の可能性」)

  稲津 將, 木本 昌秀, 住 明正 大会講演予講集 90 109 -109 2006年
• A306 高解像度CCSR/NIES/FRCGC^* GCMにおける大気海洋結合効果(気候システムIII)

  稲津 將, 木本 昌秀 大会講演予講集 87 70 -70 2005年
• D168 温暖化時のストームトラックの真冬の振幅極小(中高緯度大気)

  稲津 將, 木本 昌秀 大会講演予講集 86 330 -330 2004年
• C460 ストームトラックに伴う圏界面高度変動に関する考察(ストームトラックの力学,専門分科会)

  向川 均, 稲津 將, 謝 尚平, 長谷部 文雄, 山下 景子 大会講演予講集 85 159 -159 2004年
• 北太平洋域でのブロッキング形成に対する大規模山岳の役割

  向川 均, 中澤 留威, 荒井 美紀, 稲津 將 大会講演予講集 82 317 -317 2002年10月09日
• 中緯度SST強制に対する定常波とストームトラック形成機構

  稲津 將, 向川 均, 謝 尚平 大会講演予講集 82 323 -323 2002年10月09日
• GCM response of the extratropical atmosphere to tropical and extratropical SST forcings

  INATSU M 北海道大学地球環境科学研究科博士論文 93 2002年
• 対流圏下部境界条件が「環状モード」に及ぼす影響

  稲津 將, 向川 均, 謝 尚平 大会講演予講集 79 377 -377 2001年05月08日
• 理想化したAGCMにおけるストームトラックの局在化

  稲津 將, 向川 均, 謝 尚平 大会講演予講集 78 219 -219 2000年10月18日
• 山岳のないAGCMにおける対流圏の中高緯度の定在波動

  稲津 將, 向川 均, 謝 尚平 大会講演予講集 76 397 -397 1999年11月24日
• 山岳のないAGCMにおける東西非一様な時間平均場の形成

  稲津 將, 向川 均, 謝 尚平 大会講演予講集 75 C153 1999年04月

受賞

• 2016年02月 北海道大学 教育総長賞奨励賞
   

  受賞者: 稲津將
• 2014年09月 日本海洋学会 若手ベストポスター賞
   

  受賞者: 石山 宙夢;上野 洋路;稲津 將;伊藤 幸彦
• 2013年01月 気象集誌論文賞
   

  受賞者: 稲津 將;佐竹 祐哉;木本 昌秀;安富 奈津子
• 2005年11月 日本気象学会 山本・正野論文賞
   

  受賞者: 稲津將

共同研究・競争的資金等の研究課題

• 高解像気候変動予測と作物データセットの充実による農業適応策の提示

  文部科学省：科学研究費 基盤研究(A)

  研究期間 : 2019年 -2022年 

  代表者 : 稲津將
• 気候変動に伴う都市災害への適応

  環境再生保全機構：環境研究総合推進費2-1905

  研究期間 : 2019年 -2021年 

  代表者 : 稲津將
• 連鎖複合型災害現象のメカニズムと人口急減社会での適応策

  文部科学省：科学研究費 基盤研究(A)

  研究期間 : 2018年 -2020年 

  代表者 : 稲津將
• 大気ブロッキング発生の力学と予測可能性

  文部科学省：科学研究費 基盤研究(C)

  研究期間 : 2018年 -2020年 

  代表者 : 稲津將
• 高速道路上における吹雪ポテンシャル予測技術の開発

  東日本高速道路株式会社：技術研究助成

  研究期間 : 2019年 -2019年 

  代表者 : 稲津將
• 東京海上日動リスクコンサルティング株式会社・共同研究

  東京海上日動リスクコンサルティング株式会社：共同研究

  研究期間 : 2018年 -2019年 

  代表者 : 稲津將
• 気候変動適応技術社会実装プログラム

  文部科学省：受託研究費（ＳＩＣＡＴ）

  研究期間 : 2015年 -2019年 

  代表者 : 稲津將
• 気象学の低次元空間解析と予測

  文部科学省：科学研究費 基盤研究(B)

  研究期間 : 2014年 -2016年 

  代表者 : 稲津將

   

  研究計画の通り、（１）気象の長周期変動とその予測の数学的解明と（２）温帯低気圧の形状変化の数学的解明を並列的に実施した。（１）気象の長周期変動と予測：平成27年度において、5,000年の気候シミュレーション標準実験データに基づき4次元以上の確率微分方程式を構築し、予測可能性の議論を行った。その結果、初期摂動育成法による初期誤差成長と長期積分結果の位相空間解析におけるmultiple realisationを比較することが有用であるとの結論を得た。まず、予測可能性研究における初期摂動育成法と確率微分方程式法の比較のために、標準実験データに基づき5次元の確率微分方程式を構築した。平成27年度と同様に対流圏における北半球冬季における長周期変動の主成分を5つ取り出し、これによって張られた相空間において予測可能性を議論した。とくに、5次元確率微分方程式と相空間内におけるデータの軌道束の多様体との関係を考察した。また、初期摂動育成法に基づく初期誤差成長を考察するため、初期摂動育成法を大気大循環モデルに実装した。２）温帯低気圧の形状変化：温帯低気圧にみられる典型的な形状の時間発展を、研究分担者・荒井との数学的議論にもとづき、類型化した。とくに、パーシステント・ホモロジーを利用した低気圧の形状の分類を試みた。その結果、形状分類だけでなく低気圧の追跡にもパーシステントホモロジーが有用であることがわかった。そこで、トラッキングプログラムを新たに構築し、１０年分の気象解析データに基づいた北太平洋における低気圧経路を計算した。また、そのための位相幾何学と気象学に関する共同成果発表会を開催した。
• 新トラッキング法による革新的な低気圧診断

  文部科学省：科学研究費若手研究(B)

  研究期間 : 2013年 -2015年 

  代表者 : 稲津將

   

  新トラッキング法を用いて個々の低気圧特性の詳細な定量化に関し、以下の３点を実現した。（Ａ）対流圏界面付近の渦の幾何形状と渦の力学の関係を明らかにした。とくに、これまで誰も直接示していない渦の楕円形状と渦の西風運動量輸送の整合性に着目した。（Ｂ）熱帯低気圧へ新トラッキング手法を適用した。とくに、気象格子点データより、個々の台風の特性を明らかにしながら、客観的に追跡する方法を確立した。（Ｃ）日本付近を通過する温帯低気圧カタログを作成した。とくに、過去の気象統計と並び立って気象情報の現業利用に資するよう、主観的な天気図と整合性の高いものを公開した。
• 北海道を対象とする総合的ダウンスケール手法の開発

  文部科学省：受託研究費（ＲＥＣＣＡ）

  研究期間 : 2010年 -2014年 

  代表者 : 稲津將
• 新型気候モデルを用いた中緯度海洋前線の大気マルチスケールへの影響

  文部科学省：科学研究費補助金(若手研究(B))

  研究期間 : 2009年 -2011年 

  代表者 : 稲津將

   

  本研究の目的は、数百kmのスケールで盛んにおこっているであろうと考えられている中緯度大気海洋相互作用を理解するために、全球シミュレーションモデルに領域シミュレーションモデルを結合した計算を実施することにある。本年度はモデルの改良と領域シミュレーション実験を行う予定であった。モデルの改良は順調に進み、大気全球モデルと大気領域モデルの結合でアンサンブルシミュレーションを行う手はずが整った。一方、領域シミュレーション実験の結果に基づいて低気圧の発達率を計算する予定であったが、既存のトラッキングプログラムでは併合するタイプの低気圧をトラックすることができないことが分かった。そこで急遽、別財源を用いてトラッキングプログラムを整備した。そのプログラムは併合・分裂を含むいかなる挙動を示す低気圧のトラックに対しても十分な性能を持っているほか、低気圧に伴う物質交換量を3次元的に把握することもできる。一見、本年度の研究予定事項を終えていないようにも見えるが、このプログラム整備が終了したことで目下の障害は除かれ、来年度以降、予定のスケジュール通り、シミュレーション結果の解析を行っていく予定である。
• 大気海洋結合モデルと領域気候モデルの双方向ネスティングの実現

  文部科学省：科学研究費若手研究(B)

  研究期間 : 2006年 -2008年 

  代表者 : 稲津將

   

  大気海洋結合モデルMIROC(東京大学、国立環境研究所、海洋開発研究機構の共同開発)と領域モデルJMA/MRI NHM(気象庁の開発)とを双方向にネストするモデルを開発した。 そのモデルを使って、北東アジアの大気マルチスケール相互作用研究に適応し、通常の全球モデルでは解像できない小規模渦と小規模山岳の効果を見積もった。 その結果より、小規模渦の効果は領域内部に留まるものの、小規模山岳の効果は全球に及ぶ可能性が示唆された。

教育活動情報

主要な担当授業

大学運営

委員歴

• 2019年04月 - 現在   日本気象学会 北海道支部理事
• 2013年06月 - 現在   日本農業気象学会   北海道支部評議員
• 2010年06月 - 現在   日本気象学会   気象集誌編集委員
• 2011年04月 - 2019年03月   日本気象学会   北海道支部幹事長
• 2016年10月 - 2017年10月   日本気象学会   全国大会運営委員
• 2011年10月 - 2012年10月   日本気象学会   全国大会運営委員
• 2007年04月 - 2011年03月   日本気象学会   北海道支部幹事