Articles | Volume 17, issue 1
https://doi.org/10.5194/amt-17-37-2024
https://doi.org/10.5194/amt-17-37-2024
Research article
 | 
05 Jan 2024
Research article |  | 05 Jan 2024

Assessing potential indicators of aerosol wet scavenging during long-range transport

Miguel Ricardo A. Hilario, Avelino F. Arellano, Ali Behrangi, Ewan C. Crosbie, Joshua P. DiGangi, Glenn S. Diskin, Michael A. Shook, Luke D. Ziemba, and Armin Sorooshian

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Short summary
Wet scavenging strongly influences aerosol lifetime and interactions but is a large uncertainty in global models. We present a method to identify meteorological variables relevant for estimating wet scavenging. During long-range transport over the tropical western Pacific, relative humidity and the frequency of humid conditions are better predictors of scavenging than precipitation. This method can be applied to other regions, and our findings can inform scavenging parameterizations in models.