Recent changes of glacier coverage in the western Terskey-Alatoo range, Kyrgyz Republic, using Corona and Landsat

被引:53
作者
Narama, Chiyuki [1 ]
Shimamura, Yuichi [2 ]
Nakayama, Daichi [2 ]
Abdrakhmatov, Kanatbek [3 ]
机构
[1] Nagoya Univ, Dept Environm Sci, Nagoya, Aichi 4648601, Japan
[2] Tokyo Metropolitan Univ, Dept Geog, Tokyo 1920397, Japan
[3] Kyrgyz Acad Sci, Inst Seismol, Bishkek, Kyrgyzstan
来源
ANNALS OF GLACIOLOGY, VOL 43, 2006 | 2006年 / 43卷
关键词
D O I
10.3189/172756406781812195
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Corona images from 1971 and a Landsat image from 2002 are used to assess glacier variations in the last 30years in the western Terskey-Alatoo range (a part of the Tien Shan), in the northeast of the Kyrgyz Republic. The glaciers have shrunk (luring this period. The 269 mountain glaciers measured in the study area had an original combined area of 245 km(2), which has decreased 18.4 km(2), representing a loss of 8% of the original glacier coverage iin 1971. Individual glaciers covering < 1 km(2) account for 28% of the combined glacial coverage, but loss from these small glaciers represents 38% of the total decrease in area. The relative change of area is larger for small-scale glaciers, and its contribution to shrinkage of glacier area is high. This shrinkage has been linked to climate changes as recorded at local stations. Many small-scale glaciers are distributed around Issylk-Kul lake, and rapid glacier reduction is expected in this area in the future.
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页码:223 / +
页数:3
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