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About

Wei Gao is an atmospheric scientist whose research centers on aerosol remote sensing, satellite data validation, and air quality monitoring across China and the continental United States. His work has made significant contributions to our understanding of aerosol optical depth (AOD) — a critical measure of atmospheric particulate pollution — by rigorously comparing and validating data from multiple satellite platforms and ground-based observation networks. Gao's most influential study, a 2018 intercomparison of CALIOP, MODIS, and AERONET AOD measurements over China (21 citations), established important benchmarks for assessing the reliability of satellite-derived aerosol data in one of the world's most polluted regions. Building on earlier validation work published in 2014 (12 citations), his research has systematically evaluated the strengths and limitations of the CALIPSO lidar instrument against trusted ground-truth networks like AERONET. His 2013 work extended this validation framework to the continental United States, broadening the geographic scope of his contributions. Gao has also applied these multi-source observational tools to study specific pollution events, including a severe 2012 Beijing dust storm, demonstrating the practical value of combined satellite and ground-based approaches for tracking and characterizing extreme aerosol episodes.