丹江口水库水域面积动态变化研究  

Study on the Dynamic Change of Water Area in the Danjiangkou Reservoir

作　　者：董亚东[1] 杨勤[2] 

机构地区：[1]湖北丹江口水力发电厂,湖北丹江口442700 [2]湖北丹江口市汉江中学,湖北丹江口442700

出　　处：《南水北调与水利科技》2009年第6期255-257,共3页South-to-North Water Transfers and Water Science & Technology

摘　　要：以LANDSAT的TM/ETM+多时相遥感影像为数据,采用NDWI和MNDWI两种模型定量研究丹江口库区1999年-2006年水域面积动态变化。研究表明,从1991年到2006年期间,丹江口水库的水域面积稳定在300km2至385km2之间。NDWI和MNDWI都能准确提取丹江口水库水域面积,MNDWI模型更适合该地区水体信息定量提取研究。In this report,TM/ETM＋ remote sensing data,NDWI and MNDWI have been adopted to study the dynamic change of water area in the Danjiangkou reservoir region.The results show that the water area of the Danjiangkou reservoir is stable around 300-385 km2 from1991 to 2006.Both NDWI and MNDWI can accurately extract water area of the Danjiangkou reservoir region,but MNDWI model is more suitable for the quantitative water body extraction research of the studied region.

关 键 词：水域 NDWI MNDWI 丹江口水库 

分 类 号：TV21[水利工程—水文学及水资源] TP79[自动化与计算机技术—检测技术与自动化装置]