人民长江2018，Vol.49Issue(4)：34-39,6.DOI:10.16232/j.cnki.1001-4179.2018.04.007
长江源各拉丹冬地区冰川变化遥感监测分析
Remote sensing monitoring on glacier change in Geladandong area from 1992 to 2015,a source area of Yangtze River
摘要
Abstract
To further study the climatic issue,taking the Geladandong glacier as the object and employing remote sensing and geographical information technology,the glacier variation condition in Geladandong,a source area of Yangtze River,was studied. Based on the collected images of Landsat -TM and Landsat8 -OLI_TIRS, DEM and glacier inventory data in 1992, 2002, 2009,2015,the CART decision tree was applied to extract the information of Geladandong glacier,so the change analysis on the glacier areas in 3 periods of 1992~2002,2002~2009,2009~2015 was carried out.The analysis showed that the glacial area of the Geladandong retreated 78.97 km2,accounting 8.6%of the total glacial area;the glaciers distributed between the elevation of 5200 m to 6600 m,and the upper retreat limit of the glacier was 5800 m.In addition, the glacier inclination influence and length variation were studied.The study concluded that the glacier retreat caused by the global warming would continue.关键词
遥感/冰川变化/CART/决策树/各拉丹冬Key words
remote sensing/glacier change/classification and regression trees(CART)/decision tree/Geladandong分类
天文与地球科学引用本文复制引用
蒙张,胡勇,邹洪坤,李艳红,王彬..长江源各拉丹冬地区冰川变化遥感监测分析[J].人民长江,2018,49(4):34-39,6.基金项目
中央高校基本科研业务专项重大重点培育专项"地理资源环境综合监测"(2042015kf1044) （2042015kf1044）
青海省生态环境遥感监测项目"冰川崩塌次生灾害应急产品研制"(2016XM5) （2016XM5）
