Ice cover regime of Eurasian lakes and inland seas from in situ and satellite observations
Alexei V. Kouraev
kouraev at legos dot obs dash mip dot fr
Universite de Toulouse; UPS (OMP-PCA), LEGOS, 14 Av. Edouard Belin, F-31400 Toulouse, France // State Oceanography Institute, St. Petersburg branch, Russia
France
Michail N. Shimaraev
Limnological Institute, Siberian Branch of Russian Academy of Sciences, Irkutsk, Russia
Russian Federation
Petr I. Buharizin
Astrakhan expedition base of the Water Problems Institute of Russian Academy of Sciences, Dept. of Engineering Ecology, Astrakhan, Russia
Russian Federation
Michail A. Naumenko
Limnology Institute of the Russian Academy of Sciences, St. Petersburg, Russia
Russian Federation
Jean-Francois Cretaux
Universite de Toulouse; UPS (OMP-PCA), LEGOS, 14 Av. Edouard Belin, F-31400 Toulouse, France // CNES; LEGOS, F-31400 Toulouse, France
France
Nelly M. Mognard
Universite de Toulouse; UPS (OMP-PCA), LEGOS, 14 Av. Edouard Belin, F-31400 Toulouse, France // CNES; LEGOS, F-31400 Toulouse, France
France
Benoit Legresy
Universite de Toulouse; UPS (OMP-PCA), LEGOS, 14 Av. Edouard Belin, F-31400 Toulouse, France // CNRS; LEGOS, F-31400 Toulouse, France
France
Frederique Remy
Universite de Toulouse; UPS (OMP-PCA), LEGOS, 14 Av. Edouard Belin, F-31400 Toulouse, France // CNRS; LEGOS, F-31400 Toulouse, France
France
Keywords: ice cover, Baikal, Onega and Ladoga lakes, Caspian and Aral sea
Presentation preference: oral
We show how the studies of ice cover of continental water bodies can benefit from the combination of simultaneous active (radar altimeter) and passive (radiometer) observations from radar altimetric satellites (TOPEX/Poseidon, Jason-1, ENVISAT and Geosat Follow-On) and SSM/I passive microwave data. Five largest Eurasian continental water bodies - Caspian and Aral seas, Baikal, Ladoga and Onega lakes are selected as examples. We present an ice discrimination approach based on a combined use of the data from the four altimetric missions and SSM/I, its validation, as well as particularities of radiometric properties for each of the chosen water bodies. We then analyse the long-term evolution of ice conditions (extent and phenology) for these lakes and inland seas using historical data and our results from satellite radar altimetry and radiometry.