In order to simultaneously determine the values of total solar irradiance (TSI) and Earth’s radiation at top atmosphere (TOA) on board Fengyun-3F satellite, a spaceborne relative radiometer (SRR) was developed. It adopts dual-channel structure, including channel (SR) with an unobstructed field view (FOV) 1.5° Earth (ER) wide (WFOV) 95.3° diameter about 1900 km ground. Before launch, both SR ER ...

A 22-channel Microwave Radiometer for Cloud Carthography (MICCY) for the profiling of tropospheric temperature, humidity, and cloud liquid water has been developed. The radiometer has 10 channels along the high-frequency wing of the 22.235 GHz water vapor line, 10 channels along the low-frequency side of the 60 GHz oxygen complex, and 2 channels at 90 GHz. Two features make the radiometer a uni...