摘要
利用1:50000地形图,4期Landsat TM遥感影像及2009年RTK冰川边界测量结果,获得了1957-2009年间老虎沟冰川流域的面积变化特征,结合气候变化背景资料,探讨了冰川面积变化对气候变化的响应。结果表明:目视解译是老虎沟流域冰川变化遥感研究的最优方法;1957-2009年间老虎沟冰川面积共减少了11.59%,以1994-1999年间的缩减最为显著,1999-2009年间的变化次之,1957-1994年变化最小。冰川缩减率与气温增加值成正比,与冰川规模成反比。该结果为进一步丰富冰川变化及水资源研究奠定了基础,具有重要的科研价值和社会意义。
Glaciers on the Tibetan Plateau play an important role in the earth＇s climate system.Regular survey of glacier change is almost impossible in most parts of technique and becomes the only means in many places.GIS provides an efficient tool to analyze the status and the change of glaciers.In the paper,the Laohugou river basin is selected as a test area.Variation characteristics of the area of the Laohugou river basin from 1957 to 2009 were analyzed based on the data including 1：50000 topographic maps,4 Landsat TM satellite remote sensing images,and the measured glacial boundary map by RTK technology in 2009.Combined with climate change data,the response of glacial area change on climate change was discussed.The results show that Visual Interpretation is the best method for the remote sensing research of glacier change.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2013年第4期70-75,共6页
Journal of Arid Land Resources and Environment
基金
国家自然科学基金(41071046
41201067)
冰冻圈科学国家重点实验室自主研究项目(SKLCS-ZZ-2012-01-05)
国家自然科学基金委基础人才培养基金冰川学冻土学特殊学科点(J0630966/J0109)
半干旱气候变化教育部重点实验室(兰州大学)开放基金共同资助
关键词
冰川面积
气候变化
老虎沟冰川流域
气候敏感性
遥感
glacier area
climate change
Laohugou glacier basin
climate sensitivity
remote sensing
