EDGAR_HTAP Emission

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Naser Mohammadzadeh

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Apr 3, 2026, 6:57:55 AM (6 days ago) Apr 3
to wrf-chem-anthro_emiss

Hello,

I am currently working on emission processing. I found the following dataset, which provides EDGAR-HTAP emissions for parameters such as SO₂, NOx, CO, NMVOC, NH₃, PM₁₀, PM₂.₅, BC, and OC, with a spatial resolution of 0.1° × 0.1° and monthly/yearly data covering 2000–2020:

https://zenodo.org/records/17086684

However, the EDGAR-HTAP data I previously received from UCAR for emission processing includes additional species, such as:
CH₂O, CH₃CHO, CH₃OH, MEK, BIGALK, BIGENE, and others.

Some of these species are available in the updated EDGAR-HTAP dataset, but others are not.

I would like to update my emission files based on the newer dataset. Could you please advise how to generate or estimate the missing species (e.g., CH₂O, CH₃CHO, etc.) that are not directly provided in the updated dataset?

I would appreciate your guidance on how to handle these species.


Thank you

Naser

Rajesh Kumar

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Apr 3, 2026, 9:11:22 AM (6 days ago) Apr 3
to Naser Mohammadzadeh, wrf-chem-anthro_emiss
Hello Naser,

You can download the CAMS anthropogenic emission dataset from the ECCAD website (https://eccad.sedoo.fr/#/catalogue). That includes speciated VOC emissions. Once you have the CAMS emissions, calculate the fractional contribution of each VOC species to total VOC species for every grid box, and then apply that fractional contribution to total VOC emissions in the new EDGAR-HTAP. 

Thanks,
Rajesh
--
Rajesh Kumar
Deputy Director
Research Applications Laboratory 
NSF National Center for Atmospheric Research (NSF NCAR)
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