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
Miguel Ricardo A. Hilario
Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USA
Avelino F. Arellano
Department of Hydrology and Atmospheric Sciences, University of Arizona, Tucson, AZ 85721, USA
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.
Wet scavenging strongly influences aerosol lifetime and interactions but is a large uncertainty...