Title :
Water storage variations in the Aral Sea from multi-sensor satellite data in comparison with results from GRACE gravimetry
Author :
Singh, Alka ; Seitz, Florian
Author_Institution :
Earth Oriented Space Sci. & Technol. (ESPACE), Tech. Univ. Munchen, Munich, Germany
Abstract :
The Aral Sea was the fourth largest lake of the world until the 1960s. Due to large-scale irrigation projects in the region, the lake started shrinking drastically [1],[6]. In this paper we estimate the volume change of water in the Aral Sea from geometrical remote sensing techniques (satellite altimetry and optical satellite images) in combination with a digital elevation model. The results are compared with observations of water storage changes from the dedicated satellite gravity field mission GRACE for the time frame between 2002 and 2011.
Keywords :
digital elevation models; lakes; remote sensing; water resources; AD 2002 to 2011; Aral sea; GRACE gravimetry; digital elevation model; fourth largest lake; geometrical remote sensing techniques; large-scale irrigation projects; multisensor satellite data; optical satellite images; satellite altimetry; water storage variations; water volume change; Altimetry; Earth; Gravity; Lakes; Remote sensing; Satellites; Sea surface; Altimetry; Aral Sea; GRACE; Landsat;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350784
