近40年天山冰川变化的遥感监测

P9; Both marginal fluctuation and areal change were used to detect the accurate dynamics of glacier change in the study area using Landsat MSS, ETM, SPOT HRV and topographic maps based on GIS. From 1963 to 1977, four of eight glaciers advanced, two of them retreated and another two kept stable, the...

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Published in地理学报（英文版） Vol. 14; no. 3; pp. 296 - 302
Main Authors 李宝林, 张一驰, 周成虎
Format Journal Article
LanguageChinese
Published State Key Laboratory of Environment and Resources Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China 2004
Subjects
global warming
Tianshan Mountains
remote sensing
glacier retreat
glacier
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ISSN1009-637X

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Summary:P9; Both marginal fluctuation and areal change were used to detect the accurate dynamics of glacier change in the study area using Landsat MSS, ETM, SPOT HRV and topographic maps based on GIS. From 1963 to 1977, four of eight glaciers advanced, two of them retreated and another two kept stable, the glacier advanced generally. From 1977 to 1986, four of eight glaciers retreated and the others kept stable, but the retreated glaciers were those which advanced from 1963 to 1977. From 1986 to 2000, seven of eight glaciers retreated and only one glacier kept stable, the retreating velocity was 10-15 m/a. Glacier recession in this period became very fast and universal. From 1963 to 2000, the area of glaciers decreased from 5479.0 ha to 4795.4 ha, up to 12.5%. It is alarming that most of glacier retreats happened from 1986 to 2000. This was very consistent with change process of summer mean temperature in this region and global warming beginning in the 1980s.
ISSN:1009-637X