Diurnal Cycle in Surface Incident Solar Radiation Characterized by CERES Satellite Retrieval

Surface incident solar radiation (Rs) plays an important role in climate change on Earth. Recently, the use of satellite-retrieved datasets to obtain global-scale Rs with high spatial and temporal resolutions has become indispensable tool for research related fields. Many studies were carried out evaluation based monthly satellite retrievals; however, few evaluations have been performed their diurnal variation Rs. This study used independently widely distributed ground-based data from Baseline Radiation Network (BSRN) evaluate hourly Clouds Earth’s Radiant Energy System Synoptic (CERES) SYN1deg–1Hour product through a detrended standardization process. Furthermore, we explored influence cloud cover aerosols We found that CERES-retrieved performs better at midday than 7:00–9:00 15:00–17:00. For distribution, over continent island/coast polar regions. The Bias, MAB RMSE under clear-sky conditions are rather small, although correlation coefficients slightly lower those overcast-sky 9:00 15:00. In addition, range bias caused by is 1.97–5.38%, which significantly larger 0.31–2.52% AOD.