摘要
对国内外遥感监测土壤水分的发展情况进行了回顾，简单总结了国内外常用的遥感监测土壤水分的方法及其原理，对目前遥感监测土壤水分领域的研究重点和未来发展方向进行了评述。以改进的热惯量法和植被缺水指数法等为主要代表的土壤水分遥感监测方法日臻成熟，可以投入业务运行；随着成本的不断降低，微波遥感是监测土壤水分的最有希望的方法之一。
In this paper, the national/international developments, as well as the theories and methods of soil moisture monitoring by remote sensing are simply s ummarized. A review on the study keys and development directions in the field of drought monitoring by remote sensing is carried out. The results showed that th e methods on soil moisture monitoring by remote sensing, which are mainly stood for by improved thermal inertia and CWSI, are becoming mature and they can be us ed in daily operation. Microwave remote sensing is one of the most promise ways with the costs reduce.
出处
《遥感技术与应用》
CSCD
1999年第2期55-65,共11页
Remote Sensing Technology and Application
关键词
土壤水分
热惯量法
遥感
监测
Soil moisture,Remote sensing,Thermal inertia,CWSI
