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Saito Jun
| Institute of Low Temperature Science Frontier Ice and Snow Science | Postdoctoral Fellow |
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Research activity information
■ Awards■ Papers
- Meltwater movement and refreezing in the wet snow zone of Qaanaaq Ice Cap, northwest Greenland
Masahiro Minowa; Jun Saito; Ken Kondo; Takuro Imazu; Shin Sugiyama
Polar Science, Sep. 2026
Scientific journal - Shortwave Penetration Drive Subsurface Warming and Melt on Langhovde Glacier, East Antarctica
Jun Saito; Masahiro Minowa
14 Mar. 2026 - Uptake and Transfer of Heat Within the Firn Layer of Greenland Ice Sheet's Percolation Zone
Jun Saito; Joel Harper; Neil Humphrey
Journal of Geophysical Research: Earth Surface, Jun. 2024
Scientific journal - Quantifying Mass and Heat Fluxes on the Western Greenland Ice Sheet with Observational Data and Modeling
Jun Saito
Unpublished, Unpublished, 2024
Scientific journal - Cold Season Rain Event Has Impact on Greenland's Firn Layer Comparable to Entire Summer Melt Season
J. Harper; J. Saito; N. Humphrey
Geophysical Research Letters, 28 Jul. 2023
Scientific journal - Glacier mass change on the Kamchatka Peninsula, Russia, from 2000 to 2016
Shungo Fukumoto; Shin Sugiyama; Shuntaro Hata; Jun Saito; Takayuki Shiraiwa; Humio Mitsudera
Journal of Glaciology, Apr. 2023
Scientific journal - Multi-decadal elevation changes of the land terminating sector of West Greenland
Jun Saito; Toby Meierbachtol; Joel Harper
Journal of Glaciology, Feb. 2023
Scientific journal - Generation and fate of basal meltwater during winter, western Greenland Ice Sheet
Joel Harper; Toby Meierbachtol; Neil Humphrey; Jun Saito; Aidan Stansberry
The Cryosphere, 15, 12, 5409, 5421, Copernicus {GmbH}, 07 Dec. 2021
English, Scientific journal,
closely associated with water from surface melt introduced to the bed in
summer, yet melting of basal ice also generates subglacial water year-round.
Assessments of basal melt rely on modeling with results strongly dependent
upon assumptions with poor observational constraints. Here we use surface and
borehole measurements to investigate the generation and fate of basal
meltwater in the ablation zone of Isunnguata Sermia basin, western
Greenland. The observational data are used to constrain estimates of the
heat and water balances, providing insights into subglacial hydrology during
the winter months when surface melt is minimal or nonexistent. Despite
relatively slow ice flow speeds during winter, the basal meltwater
generation from sliding friction remains manyfold greater than that due to
geothermal heat flux. A steady acceleration of ice flow over the winter
period at our borehole sites can cause the rate of basal water generation to
increase by up to 20 %. Borehole measurements show high but steady basal
water pressure rather than monotonically increasing pressure. Ice and
groundwater sinks for water do not likely have sufficient capacity to
accommodate the meltwater generated in winter. Analysis of basal cavity
dynamics suggests that cavity opening associated with flow acceleration
likely accommodates only a portion of the basal meltwater, implying that a
residual is routed to the terminus through a poorly connected drainage
system. A forcing from cavity expansion at high pressure may explain
observations of winter acceleration in western Greenland.
- Rapid and sensitive response of Greenland’s groundwater system to ice sheet change
Lillemor Claesson Liljedahl; Toby Meierbachtol; Joel Harper; Dirk van As; Jens-Ove Näslund; Jan-Olof Selroos; Jun Saito; Sven Follin; Timo Ruskeeniemi; Anne Kontula; Neil Humphrey
Nature Geoscience, 14, 10, 751, 755, Springer Science and Business Media {LLC}, Oct. 2021
English, Scientific journal - Recent ice mass loss in northwestern Greenland — Results of the GRENE Greenland project and overview of the ArCS —
Sugiyama Shin; Tsutaki Shun; Sakakibara Daiki; Saito Jun; Ohashi Yoshihiko; Maruyama Mihiro; Katayama Naoki; Podolskiy Evgeny; Minowa Masahiro; Matsuno Satoshi; Sawagaki Takanobu; Matoba Sumito; Greve Ralf; Seddik Hakime; Funk Martin; Genco Riccardo; Enomoto Hiroyuki
Summaries of JSSI and JSSE Joint Conference on Snow and Ice Research, 2016, 224, The Japanese Society of Snow and Ice / Japan Society for Snow Engineering, 2016
Japanese - Surface elevation change on ice caps in the Qaanaaq region, northwestern Greenland
Saito, J.; Sugiyama, S.; Tsutaki, S.; Sawagaki, T.
Polar Science, 10, 3, 2016
Scientific journal
- Recent ice mass loss in northwestern Grreenland: Results of the GRENE Greenland project and overview of the ArCS
Sugiyama S; Tsutaki S; Sakakibara D; Saito J; Ohashi Y; Katayama N; Podolskiy E; Matoba S; Funk M; Genco R, Low Temperature Science, 75, 1, 13, Mar. 2017, [Invited]
The Greenland ice sheet and peripheral ice caps are rapidly losing mass. This mass change hasbeen captured by satellite remote sensing, but more detailed investigations are necessary tounderstand the spatiotemporal variations and mechanism of the ice loss. It has increased particularlyin northwestern Greenland, but in-situ data for northern Greenland are generally sparse. To betterunderstand the ice mass loss in northwestern Greenland, we studied the ice sheet, ice caps and calvingglaciers in the Qaanaaq region, as a part of the Green Network of Excellence (GRENE) Arctic ClimateChange Research Project. Field and satellite observations were performed to measure the mass lossof the ice caps and calving glaciers in the region. Detailed processes were investigated based on fieldmeasurements to understand mechanisms driving the ice loss. The field activities include massbalance monitoring on Qaanaaq Ice Cap since 2012, integrated field observations near the front ofBowdoin Glacier since 2013 and ocean measurements near the calving glaciers. In this contribution,we summarize the results of the GRENE Greenland project, and introduce an overview of the nextproject to be carried out under the framework of the Arctic Challenge for Sustainability Project(ArCS)., 低温科学第75巻編集委員会, English, Report research institution
- Shortwave Penetration Drive Subsurface Warming and Melt on Langhovde Glacier, East Antarctica
Jun Saito, Masahiro Minowa
JpGU-AGU Joint Meeting 2026, 28 May 2026, English, Oral presentation - Shortwave Penetration Drive Subsurface Warming and Melt on Langhovde Glacier, East Antarctica
Jun Saito, Masahiro Minowa
EGU, 07 May 2025, English, Poster presentation - Deep and Lasting Impact on Greenland's Surface Layer from an Extreme Autumn Rainfall Event
J Saito; JT Harper; NF Humphrey; TW Meierbachtol
AGU Fall Meeting, Dec. 2022, English, Poster presentation
Dec. 2022 - Observed Deep Thermal Profiles Across a Transect of Greenland’s Percolation Zone: Implications for Seasonal Storage and Release of Heat
Jun Saito; Joel Harper; Neil Humphrey; Toby Meierbachtol
Northwest Glaciologists Meeting 2022, Oct. 2022, English, Oral presentation - Measured Deep Thermal Profiles Across a Transect of Greenland’s Percolation Zone: Implications for Seasonal Storage and Release of Heat
Jun Saito; Joel Harper; Neil Humphrey; Toby Meierbachtol
Cryosphere 2022: International Symposium on Ice, Snow, and Water in a Warming World, Aug. 2022, Poster presentation - Surface elevation changes on land terminating sectors of West Greenland during recent decades
J Saito; TW Meierbachtol; JT Harper
AGU Fall Meeting, Dec. 2020, English, Poster presentation
