Study on the Method of Retrieving Surface Soil Moisture in Western Semi-arid Area by Remote Sensing

Abstract

Soil moisture is a very important index parameter in the field of hydrology and meteorology, which plays a very important role in the development of agriculture. Large scale monitoring and retrieval of soil moisture is the main component of agricultural research and ecological environment assessment. The region of the soil water environment is one of the essential parameters in examining the land surface process model. Therefore, remote sensing inversion of soil moisture is a very convincing research topic, and it is also the boundary field of remote sensing technology application research, which is one of the global recognized research problems. With the development of remote sensing technology and GIS, GPS and 3S integration and other related disciplines, not only can the large-scale real-time monitoring of soil moisture dynamics be carried out, but also the accuracy of soil moisture inversion has been greatly improved. Looking back on the development of several decades, several remote sensing methods of soil moisture retrieval have appeared, and these methods have been well verified and applied in corresponding areas.