利用TM图像提取玛纳斯河流域上游积雪信息的方法研究  

Study on the Methods of Snow Information Extraction in Upstream of the Manas River Basin Based on TM Image

作　　者：张飞[1] 关洪军[1] 许春华[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京20007

出　　处：《高原山地气象研究》2011年第1期69-73,共5页Plateau and Mountain Meteorology Research

摘　　要：在我国干旱地区,天山是融水占年径流量比重较大的山区,在天山地区,冰雪为许多河流和生态环境的生存发展提供水资源,所以对冰雪的定量监测非常重要。通过对TM图像云和雪的光谱特征分析以及几种常用积雪信息提取方法的比较,以及对玛纳斯河流域上游地区的积雪进行实际检测,认为雪盖指数法是TM图像提取积雪的较佳技术手段。Melting water accounts fro a large proportion in the Tianshan Mountains,where snow and ice provide water resource for many rivers and the ecological environment in the arid areas,so,quantitative monitoring of snow and ice is very important.Based on the spectral characteristics analysis of clouds and snow,the comparison of several common methods of snow information extraction and the actual detection of snow on the upstream of the Manas River,it proves that the method of NDSI is a better technical method than any other method on the use of TM image emtracting snow.

关 键 词：遥感监测 积雪信息 NDSI TM图像 

分 类 号：P426.635[天文地球—大气科学及气象学]