RT null T1 History of Environmental Change in the Sistan Basin: Based on Satellite Image Analysis; 1976 – 2005 A1 United Nations Environment Programme, A1 International Institute for Geo-Information Science and Earth Observation, K1 ecosystem K1 river K1 vegetation K1 satellite communication YR 2006 FD 2006-05 LK https://wedocs.unep.org/handle/20.500.11822/7690 UL https://wedocs.unep.org/handle/20.500.11822/7690 NO The main objective of this study is to gain insight into the environmental dynamics of the Sistan basin, based on a systematic analysis of archived and recent satellite images. DS UN Environment Document Repository RD Sep 23, 2026