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About

G. Thomas Arnold is a leading atmospheric scientist whose research focuses on the complex interactions between aerosols, clouds, and remote sensing. His work is pivotal in understanding how aerosols—tiny particles suspended in the atmosphere—are modified by fog and clouds, and how these processes affect climate and air quality. Arnold’s most influential contribution, his 2012 paper on fog- and cloud-induced aerosol modification observed by the AERONET network, has garnered 154 citations, establishing a foundational understanding of how cloud dissipation events alter aerosol size distributions. He further advanced this field with high-spatial-resolution aircraft remote sensing during the SEAC⁴RS campaign, a study with 42 citations that reveals the variability of aerosol properties near clouds—critical for improving satellite retrievals like MODIS. Notably, Arnold also led the vicarious calibration of advanced airborne sensors (eMAS, AirMSPI, AVIRIS) during the FIREX-AQ campaign, a 2021 study with 29 citations that ensures the accuracy of remote sensing data used in wildfire and atmospheric research. His work directly supports better climate models and satellite validation, making him a key figure in aerosol-cloud science.