Ice cover variability in the Caspian and Aral seas from active and passive microwave satellite data
Open Access
- 1 June 2003
- journal article
- Published by Norwegian Polar Institute in Polar Research
- Vol. 22 (1) , 43-50
- https://doi.org/10.1111/j.1751-8369.2003.tb00094.x
Abstract
The paper discusses time and space variations of ice extent in the Caspian and Aral seas during the last decade (1992–2002). It uses synergy of data from active (radar altimeter) and passive (radiometer) microwave nadirlooking instruments onboard the TOPEX/Poseidon satellite. The proposed approach is substantiated and validated using both in situ and satellite imagery data for the Caspian Sea. The results indicate significant spatial and temporal variability of ice conditions, with a significant decrease of both the duration of ice season and ice extent during the last four winters (1998–2002). The TOPEX/Poseidon-derived time series of sea ice extent are very valuable in view of the fragmentary and mostly unpublished data on ice conditions on the Caspian and Aral seas since the mid-1980s.Keywords
This publication has 3 references indexed in Scilit:
- Estimating terrestrial snow depth with the TOPEX-Poseidon altimeter and radiometerIEEE Transactions on Geoscience and Remote Sensing, 2002
- Coming to Grips With the Aral Sea's Grim LegacyScience, 1999
- Caspian sea level from Topex‐Poseidon altimetry: Level now fallingGeophysical Research Letters, 1997