Articles | Volume 21, issue 22
Atmos. Chem. Phys., 21, 16775–16791, 2021
https://doi.org/10.5194/acp-21-16775-2021
Atmos. Chem. Phys., 21, 16775–16791, 2021
https://doi.org/10.5194/acp-21-16775-2021
Research article
18 Nov 2021
Research article | 18 Nov 2021

Relating geostationary satellite measurements of aerosol optical depth (AOD) over East Asia to fine particulate matter (PM2.5): insights from the KORUS-AQ aircraft campaign and GEOS-Chem model simulations

Shixian Zhai et al.

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Latest update: 30 Nov 2022
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Short summary
Geostationary satellite aerosol optical depth (AOD) has tremendous potential for monitoring surface fine particulate matter (PM2.5). Our study explored the physical relationship between AOD and PM2.5 by integrating data from surface networks, aircraft, and satellites with the GEOS-Chem chemical transport model. We quantitatively showed that accurate simulation of aerosol size distributions, boundary layer depths, relative humidity, coarse particles, and diurnal variations in PM2.5 are essential.
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