摘要
遥感(RS)、地理信息系统(GIS)及其集成技术在动态变化监测中应用非常广泛。以两个时相的ENVISAT-ASAR图像为例,在对不同时相进行精确配准等必要图像预处理基础上,通过消除雷达影像山体阴影影响,提取出每个时相上水体区域分布,并在GIS技术支持下,采用空间叠加分析方法实现了鄱阳湖水域随季节变化监测的目的。
Remote sensing,geographic information system and their integration are widely applied in dynamic change monitoring. By two ENVISAT-ASAR images obtained at different time,preprocessing including accurate registration between two images was firstly done. The water area was interpreted by RS data through eliminating the influence of the mountain shadow,which was analyzed by spatial overlapping to monitor the seasonal change of the Poyang Lake based on GIS technology.
出处
《南水北调与水利科技》
CAS
CSCD
2007年第5期39-40,共2页
South-to-North Water Transfers and Water Science & Technology
关键词
地理信息系统
遥感
水域
动态变化监测
geographic information system
Remote sensing
the water area
dynamic change monitoring
