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.
出处
《南水北调与水利科技》
CAS
CSCD
2009年第6期255-257,共3页
South-to-North Water Transfers and Water Science & Technology
关键词
水域
NDWI
MNDWI
丹江口水库
water resource
NDWI
MNDWI
TM/ETM＋
the Danjiangkou Reservoir
