Journal
REMOTE SENSING OF ENVIRONMENT
Volume 102, Issue 1-2, Pages 24-32Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.rse.2006.01.019
Keywords
glacier extent; Pamir; Central Asia; ASTER imagery
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Historical surveys and recent satellite imagery are used to map and assess glacier recession in the eastern Pamir over the last three decades. For this study we used topographic maps of 1 : 100000 scales published in 1943 and 1970; air photos from 1978 and 1990; space images: from Russian satellites in 1972, 1978, 1980, and 1990 and ASTER data for 2001. Climatic records from the Fedtchenko glacier station (4156 m a.s.l., 38.83 degrees N, 72.22 degrees E) and Murgab meteorological station (3576 m a.s.l., 38.17 degrees N, 73.97 degrees E) are used for analysis of the climate conditions in the region. Changes in the area of 5 glaciers and terminus positions of 44 glaciers in the eastern Pamir reveal an accelerating trend since the end of the 1970s through 2001, as a continuation of glacier wastage and retreat since, at least, the end of the Little Ice Age. The glacier area decreased 7.8% during 1978-1990, and 11.6% in 1990-2001. This corresponds with documented changes in other mountain and subpolar regions in the Northern Hemisphere and specifically in Central Asia. Glacier changes in the eastern Pamir are a response to increasing summer temperatures. We find decreases in glacier area and retreat of glacier fronts, increased debris-covered area and the appearance of new lakes. (c) 2006 Elsevier Inc. All rights reserved.
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