| 青藏高原湖泊遥感信息提取及湖面动态变化趋势研究 |
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| 引用本文： | 闫立娟,齐文.青藏高原湖泊遥感信息提取及湖面动态变化趋势研究[J].地球学报,2012,33(1):65-74. |
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| 作者姓名： | 闫立娟 齐文 |
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| 作者单位： | 中国地质科学院;中国地质科学院矿产资源研究所;国土资源部盐湖资源与环境研究重点实验室 |
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| 基金项目： | 科技部公益性行业科研专项(编号: 200811001) |
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| 摘 要： | 青藏高原湖泊星罗棋布,是我国盐湖主要分布区.本文以RS和GIS技术为基础,从Landsat的MSS、TM、ETM三期遥感影像中,提取了青藏高原的所有湖泊信息,建立了我国盐湖空间数据库.用ArcGIS对盐湖空间数据进行统计和空间分析,从时间和空间上分析青藏高原从70年代到2000年左右湖泊湖面动态变化情况.同时,在青海和...
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| 关 键 词： | 青藏高原 湖泊 动态变化 遥感影像 |
Lakes in Tibetan Plateau Extraction from Remote Sensing and Their Dynamic Changes |
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| YAN Li-juan and QI Wen.Lakes in Tibetan Plateau Extraction from Remote Sensing and Their Dynamic Changes[J].Acta Geoscientia Sinica,2012,33(1):65-74. |
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| Authors: | YAN Li-juan and QI Wen |
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| Institution: | Chinese Academy of Geological Sciences;Institute of Mineral Resources, Chinese Academy of Geological Sciences;Key Open Laboratory of Saline Resources and Environment, Ministry of Land and Resources |
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| Abstract: | The Tibetan Plateau has rich lake resources,which is the main distribution area of salinlakes.The authors extracted all lakes on the Tibetan Plateau from MSS,TM and ETM of Landsat based on RS and GIS.Through a statistical analysis of lake spatial data using ArcGIS,the authors detected the dynamic changes of lakes in the Tibetan Plateau from the 1970’s to 2000 or so in the light of time and space.Meanwhile,some representative large lakes in Qinghai and Tibet were selected to analyze the dynamic changes of every lake based on observed data and existing research results.According to the change types,the lakes in the Tibetan Plateau can be divided into three areas:southwest Tibet is a steady and atrophy area,north Qinghai is an expansion area,and most part of northeast Tibet and north Qinghai is a steady and expansion area. |
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| Keywords: | Tibetan Plateau lake dynamic changes remote sensing |
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