Dust factor

[dorita]

Please, can anybody tell me where I can find the source/reference for this:

module_diag_afwa.F

! Dust factor based on 5 bin AFWA dust scheme. This is a simplification

! of the scheme in WRFPOST. More weight is applied to smaller particles.

! -----------------------------------------------------------------------

dustfact=(/1.470E-6,7.877E-7,4.623E-7,2.429E-7,1.387E-7/)

Same dustfact are used in module_gocart_dust_afwa.F

These are used to calculate extinction coefficients.

 

[Ming Chen]

Please take a look at this paper. Hope it is helpful for you,

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

<p><strong class="journal-contentHeaderColor">Abstract.</strong> Airborne particles of mineral dust play a key role in Earth's climate system and affect human activities around the globe. The numerical weather modeling community has undertaken considerable efforts to accurately forecast these...

gmd.copernicus.org

 

[dorita]

Yes, thank you very much!

 

[SLeGrand]

The simplified dust visibility diagnostic function was part of the AFWA diagnostic function collection added by Creighton et al. (2014). See page 15 of the PDF.

Creighton, G., E. Kuchera, R. Adams-Selin, J. McCormick, S. Rentschler, and B. Wickard (2014). AFWA diagnostics in WRF. Available online: https://www2.mmm.ucar.edu/wrf/users/docs/AFWA_Diagnostics_in_WRF.pdf