Speaker
Jin Qi
(National Satellite Meteorological Center, China)
Description
Solar irradiance observation is one of main objectives of Fengyun-3 (FY-3) series since the launch of first satellite FY-3A in 2008. For total solar irradiance (TSI), there are six satellites with the payload named Solar Irradiance Monitor (SIM) to perform operational observation. The performance of the instrument is gradually improving at the step of SIM-I, SIM-II and SIM-III. The SIM-III is scheduled for launch at the end of 2026. We recalibrate the early-stage data of SIM to build a dataset with the same scale and evaluate the TSI variations.