Observed and CMIP6 model simulated organic aerosol response to drought in the contiguous United States during summertime
Wei Li,
Yuxuan Wang
Abstract:Abstract. Drought events have been linked with the enhancements of organic aerosols (OA), but the mechanisms have not been comprehensively understood. This study investigates the relationships between the monthly standardized precipitation–evapotranspiration index (SPEI) and surface OA in the contiguous United States (CONUS) during the summertime from 1998 to 2019. OA under severe drought conditions shows a significant increase in mass concentrations across most of the CONUS relative to non-drought periods wit… Show more
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