Berezin, Alexander E.

Garestier, Frank

Kirpotin, Sergey N.

Kouraev, Alexei V.

Rémy, Frédérique

Vorobyev, Sergey N. (биолог)

Zakharova, Elena A.

English

Tomsk State University Repository

Институт почвоведения и агрохимии СО РАН, НовосибирскНациональный исследовательский Томский государственный университетИнститут мониторинга климатических и экологических систем СО РАН, ТомскИнститут лесоведения РАН, МоскваЮгорский государственный университет, Ханты-МансийскИнститут биологии КарНЦ РАН, ПетрозаводскБотанический институт им. В.Л. Комарова РАН, Санкт-ПетербургТОРФЯНИКИ ЗАПАДНОЙ СИБИРИИ ЦИКЛ УГЛЕРОДА:ПРОШЛОЕ И НАСТОЯЩЕЕМАТЕРИАЛЫЧетвёртого Международного полевого симпозиума,Новосибирск, 4 – 17 августа 2014 г.Ответственные редакторы:профессор, доктор биологических наук А.А. Титляновапрофессор, доктор биологических наук М.И. ДергачёваИздательство Томского университета2014West Siberian Peatlands and Carbon Cycle: Past and Present42This 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 projectsHYDROLOGICAL REGIME OF SIBERIAN WETLANDS FROM SATELLITEAND IN-SITU OBSERVATIONSE.A. Zakharova1,2*, A.V. Kouraev3,2,5, F. Garestier4, F. Rémy1, S.N. Kirpotin5, S.N. Vorobyev5, A.Ye. Berezin51 CNRS; LEGOS, F-31400 Toulouse, France2 State Oceanography Institute, St. Petersburg branch, Russia3 University of Toulouse; LEGOS, F-31400 Toulouse, France4 M2C - UMR CNRS 6143, University of Caen, France5 Tomsk State University, Tomsk, Russia* E-mail: zavocado@gmail.comVariability of hydrological processes in the Western (Poluy, Nadym, Pur and Taz river basins or PNPT) and Central (Yakutsk region) Siberia is studied at different temporal (from multi-year to seasonal) and spatial (from local to regional) scales. We use satellite radar altimetry (T/P, Jason, ENVISAT and SARAL/AltiKa), radiometry (SMOS, SSM/I) in combination with the in situ observations and the recent field studies done in 2008-2013 (Zakharova et al., 2011; 2014). We present the variability of water level (from radar altimetry) and surface properties (from altimeter waveforms parameters) for different studied watersheds. Seasonal and interannual variability of water abundance is studied using radar altimetry and radiometry.We have identified three main types of wetland water regime characterised by: 1) spring inundation and following deep drainage with/without secondary peak in autumn; 2) spring inundation and low summer variation; 3) spring inundation with medium summer drainage and second autumnal peak.Our results show that seasonal amplitude of water level variation for northern part of Western Siberia from altimetry is 0.7-1.5 m for lakes and 0.2-0.5 m for bogs. This represents seasonal variation of wetland water storage of 480 mm for non-permafrost and 130 mm for permafrost-affected zones.In the northern part of the Western Siberia thermokarst lakes (arctic ponds) dry out, and it is still not clear in what degree it is related to climate change and/or human activity, and what are the mechanisms - subsurface infiltration or surface drainage. There is also a significant difference in evolution of thermokarst lake complexes between Western Siberia and more arid Central Siberia. 1. Zakharova E.A., Kouraev A.V., Remy F., Zemtsov V.A., Kirpotin S.N. Seasonal variability of the Western Siberia wetlands from satellite radar altimetry // Journal of Hydrology. - 2014 (in press)2. Zakharova E.A., A.V. Kouraev, S. Biancamaria, M.V. Kolmakova, N.M. Mognard, V.A. Zemtsov, S.N. Kirpotin, B. Decharme. Snow cover and spring flood flow in the northern part of Western Siberia (the Poluy, Nadym, Pur and Taz rivers) // Journal of Hydrometeorology. - 2011. - Vol. 2. - P. 1498-1511. DOI: 10.1175/JHM-D-11-017.1

Hydrological regime of Siberian wetlands from satellite and in-situ observation

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Hydrological regime of Siberian wetlands from satellite and in-situ observation

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