Use USTAR read from GEOS instead of calculating from U10M and V10M #279
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yantosca
added
topic: Input Data
yantosca
requested changes
Jun 4, 2024
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Thanks @yuanjianz. We can merge this pending updating the CHANGELOG.md file.
src/Extensions/hcox_dustdead_mod.F - Commented out unused codes for shifting to use USTAR read from meteorology CHANGELOG.md - Added a description: Use USTAR from meteorology instead of calculating from reference 10m wind in DustDead extension
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Also, this PR will need to go into GC 14.5.0 / HEMCO 3.10.0, as this will change the fullchem benchmark simulation results. I've changed the target branch accordingly. |
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Name and Institution (Required)
Name: Yuanjian Zhang
Institution: WashU
Describe the update
Use USTAR friction velocity from meteorology instead of calculating from wind at 10m.
Comment out unused codes after this update but keep them following tradition.
Expected changes
Friction velocity is estimated to increase by 3 times. Dust emission is estimated to increase by 30 times, since dust emission is proportional to cube of friction velocity. Therefore, dust scaling factor needs to be recalculated. Following Meng, J.,et al, 2021, global annual dust emission for 2016 is scaled to 2000Tg.
Scaling factor
GEOS-IT: 2.6421e-05
MERRA-2: 3.8891e-05
GEOS-FP: 3.0655e-05
Related Github Issue
#278