| 基于遥感和GIS的西藏朋曲流域冰川变化研究 |
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| 引用本文： | 晋锐,车涛,李新,吴立宗.基于遥感和GIS的西藏朋曲流域冰川变化研究[J].冰川冻土,2004,26(3):261-266. |
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| 作者姓名： | 晋锐 车涛 李新 吴立宗 |
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| 作者单位： | 中国科学院,寒区旱区环境与工程研究所遥感实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所遥感实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所遥感实验室,甘肃,兰州,730000;中国科学院,寒区旱区环境与工程研究所遥感实验室,甘肃,兰州,730000 |
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| 摘 要： | 以西藏朋曲流域为例, 利用1970年代中国冰川编目数据、 2000/2001年ASTER遥感影像及数字高程模型, 得到研究区两期冰川分布图, 在GIS支持下统计分析冰川变化趋势. 结果表明: 近30 a流域内冰川数量减少10%, 面积退缩9%, 冰储量减少8.4%; 通过对不同规模的冰川分析, 再次证实小冰川对气候变化更为敏感.
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| 关 键 词： | 冰川变化 遥感 地理信息系统 朋曲流域 |
| 文章编号： | 1000-0240(2004)03-0261-06 |
| 修稿时间： | 2003年11月12日 |
Glacier Variation in the Pumqu Basin Derived from Remote Sensing Data and GIS Technique |
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| JIN Rui,CHE Tao,LI Xin,WU Li-zong.Glacier Variation in the Pumqu Basin Derived from Remote Sensing Data and GIS Technique[J].Journal of Glaciology and Geocryology,2004,26(3):261-266. |
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| Authors: | JIN Rui CHE Tao LI Xin WU Li-zong |
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| Abstract: | To study the glacier variation in response to climate warming, the Pumqu Basin located in Tibet Autonomous Region was selected as the test area. The glacier outlines on the topographic maps in the 1970s were digitized. Then, 18 scenes of Advanced Space borne Thermal Emission and Reflection Radiometer images and 2 China-Brazil Earth Resources Satellite images were manually interpreted to derive new glacier distribution. The information for the new glacier inventory was obtained by the aid of high-resolution digital elevation model. The general trend of glacier variation in the recent 30 years was analyzed and computed supported by GIS. The result shows that the total glacier area in Pumqu Basin has decreased by 9% and the ice reserve has reduced by 8'4%. It is also confirmed that small glaciers are more sensitive to climate change. |
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| Keywords: | glacier variation Pumqu Basin remote sensing GIS |
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