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Permafrost degradation mapping and modeling.

Description: Wet climate with largely increased in precipitation during summer and snow accumulation during winter had continued in eastern Siberia. In the present study revealed that soil moisture in the active layer had been significantly increased corresponding with thawing of permafrost near the surface, and the perennially water-logged active layer furthermore exacerbated the boreal forest habitat, namely withered and dead forests widely extended in this region. In addition, the study attempted to extract the region of degraded boreal forest in relation to permafrost degradation based on the analyses of satellite data. The method combining field survey and satellite analyses exhibited great possibility to detect permafrost and forest degradation caused by wet climate in eastern Siberia.
Amount: ¥27,040,000
Funding type: fellowship
Funder scheme: Grant-in-Aid for Young Scientists (A)
Funded outputs count: 4
Funder award ID: 21680057
OpenAlex ID: G952003013
The influence of climate and hydrological variables on opposite anomaly in active-layer thickness between Eurasian and North American watersheds
2013 · H. Park, J. Walsh, et al. · The Cryosphere · 73
Sap flow changes in relation to permafrost degradation under increasing precipitation in an eastern Siberian larch forest
2013 · Yoshihiro Iijima, Takeshi Ohta, et al. · Ecohydrology · 95
Factors controlling diurnal variation in the isotopic composition of atmospheric water vapour observed in the taiga, eastern Siberia
2012 · Akihiro Ueta, Atsuko Sugimoto, et al. · Hydrological Processes · 15
Abrupt increases in soil temperatures following increased precipitation in a permafrost region, central Lena River basin, Russia
2009 · Yoshihiro Iijima, Alexander N. Fedorov, et al. · Permafrost and Periglacial Processes · 199