Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 12, issue 1
Articles | Volume 12, issue 1
https://doi.org/10.5194/gmd-12-131-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/gmd-12-131-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 12, issue 1
Development and technical paper
 | 
07 Jan 2019
Development and technical paper |  | 07 Jan 2019

The AFWA dust emission scheme for the GOCART aerosol model in WRF-Chem v3.8.1

Sandra L. LeGrand, Chris Polashenski, Theodore W. Letcher, Glenn A. Creighton, Steven E. Peckham, and Jeffrey D. Cetola

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Short summary
This paper reviews the history, code, and performance of the three dust emission schemes embedded in the WRF-Chem model, including the GOCART, AFWA, and UoC dust emission schemes, and provides the first full documentation of the AFWA scheme. A simulation case study is provided to explore differences in model output. Results highlight the relative strengths of each scheme, indicate reasons for disagreement, and demonstrate the need for improved terrain characterization in dust emission models.
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