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E Zakharova, A Kouraev: Monitoring hydrology of Siberian wetlands from satellite and in-situ observations


This presentation was held at the DUE Permafrost 2014 workshop, 12th of Febuary 2014, Frascati, Italy


Zakharova, Elena, Kouraev, Alexei
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Zakharova E.A[1,2], Kouraev A.V.[2,3], Garestier F.[4], Rémy F.[1], Kirpotin S.N.[5], Vorobyev S.N.[5], Berezin A.Ye[5] 
[1] CNRS; LEGOS, F-31400 Toulouse, France
[2] State Oceanography Institute, St. Petersburg branch, Russia,
[3] Universite de Toulouse; UPS (OMP-PCA), LEGOS, F-31400 Toulouse, France
[4] M2C - UMR CNRS 6143, University of Caen, France
[5] Tomsk State University, Tomsk, Russia

Variability of hydrological processes in the permafrost-affected wetlands of Western and Central Siberia is studied at different temporal (from multi-year to seasonal) and spatial (from local to regional) scales. We use satellite observations (radar altimetry, radiometry, optical data) in combination with the historical observations and our field studies done in 2008-2013. We present the variability of water level and surface properties for different studied watersheds, as well as seasonal and interannual variability of water abundance. We also analyse the role of the snow cover in the formation and seasonal distribution of runoff. In the northern part of the Western Siberia we observe since 1990s an increase of meltwater loss in wetlands. There is also a significant difference in evolution of thermokarst lake complexes between Western Siberia and more arid Central Siberia. This research has been done in the framework of the Russian-French cooperation GDRI "CAR-WET-SIB" and "Franco-Siberian Center for Research and Education", French ANR "CLASSIQUE", PNTS "Permafrost" and CNES TOSCA SWOT projects, Russian FZP 1.5 and EU FP7 MONARCH-A projects.

Keywords: wetlands, Siberia, radar altimetry, remote sensing, water cycle, climate changes, human impact and adaptation


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