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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Volume 11, issue 4
Geosci. Model Dev., 11, 1443–1465, 2018
https://doi.org/10.5194/gmd-11-1443-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Geosci. Model Dev., 11, 1443–1465, 2018
https://doi.org/10.5194/gmd-11-1443-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Development and technical paper 16 Apr 2018

Development and technical paper | 16 Apr 2018

The impact of precipitation evaporation on the atmospheric aerosol distribution in EC-Earth v3.2.0

Marco de Bruine et al.

Data sets

CALIOP Aerosol Extinction Profile data B. Koffi http://aerocom.met.no/download/CALIOP_BENCHMARK_KOFFI2012/

MODIS Atmosphere L3 Monthly Product S. Platnick https://doi.org/10.5067/MODIS/MOD08_M3.006

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Short summary
Precipitation evaporation (PE) and subsequent aerosol resuspension (AR) are currently ignored or implemented only crudely in GCMs. This research introduces PE to Earth system model EC-Earth and explores ways to treat AR and the impact on global aerosol burden. Simple 1:1 scaling of AR with PE leads to an increase (+8 to 15.9 %). Taking into account raindrop size distribution and/or accounting for in-rain aerosol processing decreases aerosol burden -1.5 to 6.2 % and -10 to -11 %, respectively.
Precipitation evaporation (PE) and subsequent aerosol resuspension (AR) are currently ignored or...
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