A NEW ALGORITHM FOR SOIL MOISTURE RETRIEVAL USING C- AND K-BAND RADIOMETER CHANNELS OF OCEAN SALINITY SATELLITE

作者：Zhang Wei^*; Chen Quan; Zeng Jiangyuan; Zhou Wu; Zhang Ping

来源：36th IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016-07-10 to 2016-07-15.

• soil moisture
• radiometer
• ocean salinity satellite
• k-band
• retrieval

A new soil moisture retrieval algorithm developed in this paper, using C- and K-band microwave radiometer channels of Ocean Salinity Satellite (OSS). In this new algorithm, K-band( 23.8GHz) brightness temperature (BT) is used to estimate land surface temperature, and C-band BT in H polarization used to retrieve soil moisture by tau - omega model, in which soil roughness (h) and vegetation parameters (tau) are combined in a single factor for their similar change trends with BT. The validation is done using AMSR-E data of the same channels with Naqu soil moisture monitoring network data in the central Tibetan Plateau, result shows the new algorithm has very good accuracy, at correlation coefficient, bias and RMSE.

• 出版日期2016
• 单位民政部国家减灾中心; 中国科学院