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周 習霊 (シユウ シユウレイ)
| 地球環境科学研究院 統合環境科学部門 環境地理学分野 | 博士研究員 |
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researchmap URLホームページURL■ ID 各種
研究者番号
- 41039573
研究キーワード研究分野
研究活動情報
■ 受賞■ 論文
- Linkage Between Late‐Summer Heat Waves Over Northeastern Siberia and Subsequent SST Cooling in the Western North Pacific
Xiling Zhou; Tomonori Sato; Shixue Li; Youichi Tanimoto
Atmospheric Science Letters, 27, 5, Wiley, 2026年04月28日, ［査読有り］, ［筆頭著者, 責任著者］, ［国際共著］, ［国際誌］
英語, 研究論文（学術雑誌）, ABSTRACT
Sea surface temperature (SST) in the western North Pacific (WNP) strongly affects the regional marine ecosystem and modulates East Asian weather. Although the mechanisms of SST variability in the WNP have been extensively examined, it remains unclear how it is influenced by remote forcing from high‐latitude regions. Using reanalysis datasets spanning 1979–2024, this study examined the linkage between the summer atmospheric circulation over northeastern Siberia (NES) and autumn SST variability in the WNP and elucidated the underlying influencing processes. Results revealed that anomalous high pressure over NES in August, concurrent with frequent heat waves, is typically followed by colder autumn SST in the WNP. The ocean cooling is modulated by a low‐pressure system over the WNP, which reduces insolation through increased cloud cover and enhances evaporation via dry air advection. Together, these processes result in net surface heat loss, thereby contributing to subsequent SST cooling. This cooling, plausibly sustained by ocean thermal inertia, persists until November. This linkage, observed only following August heat waves over NES, is facilitated by the oceanic thermal structure characterized by a shallow mixed layer, which enhances the sensitivity of SST to surface heat loss. These findings suggest that the late‐summer atmospheric circulation over NES might be helpful in predicting autumn SST variability in the WNP and provide new insights into the connection between high‐latitude heat extremes and midlatitude SST variability. - Different Atmospheric Circulation Patterns Associated With Heatwaves Over Northeastern Siberia in July and August
Xiling Zhou; Tomonori Sato; Shixue Li
International Journal of Climatology, 45, 3, Wiley, 2024年12月26日, ［査読有り］, ［筆頭著者, 責任著者］, ［国際誌］
研究論文（学術雑誌）, ABSTRACT
Globally, heatwaves have become more frequent over recent decades. Summer Siberian heatwaves have received less attention, even though ecosystems are vulnerable to high temperatures. This study investigates and compares the atmospheric circulation patterns associated with northeastern Siberian heatwaves in July and August. The results suggest a strong teleconnection between eastern Europe and northeastern Siberia, similar to the British–Okhotsk Corridor pattern, along a strengthened polar jet when frequent heatwaves occur in July. However, this teleconnection is less clear in northeastern Siberia in August due to weak Rossby wave activity linked to the waveguide effect. Instead, the formation of northeastern Siberian heatwaves in August is related to abnormally low pressure over the Arctic, as supported by a linear baroclinic model experiment. Additionally, the abnormally high pressure over northeastern Siberia may influence weather in the northwestern Pacific. These findings enhance the current understanding of summer Siberian heatwaves, suggesting their connection to Arctic atmospheric circulation and their importance for subseasonal weather predictions in the northwestern Pacific. - Interannual variation of the Warm Arctic–Cold Eurasia pattern modulated by Ural blocking and the North Atlantic Oscillation under changing sea ice conditions
Xiling Zhou; Tomonori Sato; Shixue Li
Progress in Earth and Planetary Science, 10, 1, Springer Science and Business Media LLC, 2023年10月03日, ［査読有り］, ［筆頭著者, 責任著者］, ［国際誌］
研究論文（学術雑誌）, Abstract
Together with rapid Arctic warming and sea ice decline, especially over the Barents–Kara seas (BKS), extreme cold winters have occurred frequently in mid-latitudes, particularly in Central Eurasia. A pattern with two distinct winter temperature anomalies centered over the BKS and Central Eurasia is known as the Warm Arctic–Cold Eurasia (WACE) pattern. The impacts of sea ice loss over the BKS and internal atmospheric variability on past WACE formation remain under discussion mainly due to the large internal atmospheric variability in the mid-latitudes. This study analyzed a large-ensemble historical experiment prescribing observed sea ice condition to investigate the role of internal atmospheric variability in the observed interannual variation of the WACE pattern. Comparison of ensemble members suggests that internal atmospheric variability is important for regulating the magnitude of the WACE pattern. Besides the strong effect of local sea ice loss, winter temperature over the BKS increases due to warm advection driven by the Ural blocking and positive phase of the North Atlantic Oscillation. A decrease in winter temperature over Central Eurasia is mainly attributable to the cold advection enhanced by Ural blocking rather than the remote effect of sea ice decline over the BKS. Our study reveals the importance of internal atmospheric variability in elucidating the observed interannual variation of the WACE pattern.
- The impacts of global warming on summer East Siberian heatwaves via changes in large-scale atmospheric variability
Xiling Zhou, Tomonori Sato
Asia Oceania Geosciences Society Annual Meeting, 2025年08月, 英語, ポスター発表 - The linkage between late-summer eastern Siberian heatwaves and subsequent northwestern Pacific sea surface temperature cooling
Xiling Zhou; Tomonori Sato; Shixue Li
American Geophysical Union Fall Meeting, 2024年12月, 英語, ポスター発表 - Synoptic characteristics of summer heatwaves over northeastern Siberia
Xiling Zhou; Tomonori Sato; Shixue Li
Meteorological Society of Japan Autumn Meeting, 2023年10月, 英語, ポスター発表 - Interannual variation of the Warm Arctic–Cold Eurasia pattern modulated by internal atmospheric variability examined by a large ensemble experiment
Xiling Zhou; Tomonori Sato; Shixue Li
7th International Symposium on Arctic Research, 2023年03月, 英語, ポスター発表
