Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 15, issue 1
Articles | Volume 15, issue 1
https://doi.org/10.5194/gmd-15-219-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-15-219-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 1
Development and technical paper
 | 
12 Jan 2022
Development and technical paper |  | 12 Jan 2022

Development of aerosol optical properties for improving the MESSy photolysis module in the GEM-MACH v2.4 air quality model and application for calculating photolysis rates in a biomass burning plume

Mahtab Majdzadeh, Craig A. Stroud, Christopher Sioris, Paul A. Makar, Ayodeji Akingunola, Chris McLinden, Xiaoyi Zhao, Michael D. Moran, Ihab Abboud, and Jack Chen

Data sets

AERONET AERONET https://aeronet.gsfc.nasa.gov/

Giovanni Giovanni https://giovanni.gsfc.nasa.gov/giovanni/

MCD19A2 MODIS/Terra+Aqua Land Aerosol Optical Depth Daily L2G Global 1 km SIN Grid V006 A. Lyapustin and Y. Wang https://doi.org/10.5067/MODIS/MCD19A2.006

NOAA JPSS Visible Infrared Imaging Radiometer Suite (VIIRS) Aerosol Optical Thickness (AOT) and Particle Size Parameter (APSP) Environmental Data Record (EDR) from IDPS S. Kondragunta, I. Laszlo, S. Qiu, and NOAA JPSS Program Office https://www.avl.class.noaa.gov/saa/products/welcome

Model code and software

GEM-MACH: Aerosol Effect (with Core-Shell Parameterization) on MESSy-JVAL Photolysis Mahtab Majdzadeh, Craig Stroud, and GEM-MACH Development Team https://doi.org/10.5281/zenodo.5042514

gemdyn and rpnphy repositories Canadian Meteorological Centre (CMC) https://github.com/mfvalin?tab=repositories

CFFEPS v2.03, Canadian Forest Service, Natural Resources Canada Kerry Anderson and cast of thousands https://doi.org/10.5281/zenodo.2579383

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Short summary
A new lookup table for aerosol optical properties based on a Mie scattering code was calculated and adopted within an improved version of the photolysis module in the GEM-MACH in-line chemical transport model. The modified version of the photolysis module makes use of online interactive aerosol feedback and applies core-shell parameterizations to the black carbon absorption efficiency based on Bond et al. (2006) to the size bins with black carbon mass fraction of less than 40 %.
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