Study on Takelimgan Desert Using ShenZhou-IV Spaceborne Multiple Band Microwave Radiometer

Microwave emission and temperature retrieval problems have been studied with data of ShenZhou-IV Spaceborne Multiple Band Microwave Radiometer. The data standard deviation of each track is about 2.5 K, which is in the same level of SMMR above the same site. The study shows that the Radiometer has been operating stably. The brightness temperature observed in low-frequency channels is higher than that in high-frequency channels. This phenomenon is closely related to microwave sampling depth when it is compared with other data such as meteorological observation and optical remote sensing data. The observed brightness temperature has good correlation with surface parameters by correlation analysis between observed brightness temperature of each channel and surface temperature.