This study employed an extra-tree model to estimate the high spatiotemporal resolution of near-surface CO concentrations in China during the summer and autumn seasons in 2022, by integrating FY-4A and FY-4B AGRI TOAR data with meteorological variables and other information. Following the validation...
The hourly ground station observations of near-surface CO concentration are obtained from the China National Environmental Monitoring Center (CNEMC), which can be accessed on its official website (http://www.cnemc.cn/en/). FY-4A and FY-4B AGRI TOAR data can be obtained from the NSMC Sate...