학술논문
Soil moisture retrieval by remote sensing and multi-year trend analysis of the soil moisture in Tibetan Plateau
Document Type
Conference
Author
Source
2012 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International. :1223-1226 Jul, 2012
Subject
Language
ISSN
2153-6996
2153-7003
2153-7003
Abstract
In this paper, a hybrid algorithm of retrieving soil moisture is developed. This method assembles the single channel algorithm (SCA) and the Qp-model based soil moisture inversion algorithm. The new algorithm does not require soil surface roughness parameter. The accuracy evaluation of algorithm shows that the new method can provide accurate soil moisture estimate in Tibetan Plateau (TP). Based on eight years (2003∼2010) soil moisture data, multi-year changing trend of soil moisture of the TP is analyzed. The spatial pattern of soil moisture changing trend basically coincides with the trend of precipitation of the meteorological sites.