Vertical Mixing Coefficients

Topics about the HYSPLIT dispersion model.
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lagom
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Joined: January 25th, 2016, 4:00 am
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Vertical Mixing Coefficients

Post by lagom »

Hi everybody

Reading the Hysplit technical guide it seems that, using the Beljaars-Holtslag expressions for vertical mixing coefficients, the K profile at each grid point is replaced with its vertical average.

Is it possible to use this method anyway avoiding such a vertical average?

thank you in advance

Daniele
ariel.stein
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Joined: November 7th, 2012, 3:14 pm
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Re: Vertical Mixing Coefficients

Post by ariel.stein »

The model will only perform the vertical averaging of the K profile if KMIX=1. Setting KMIX=0 (default) in the SETUP.CFG file will use the K profile.
I assume you are setting KBLT=1 to use the Beljaars-Holtslag parameterization.

Great question!!
lagom
Posts: 16
Joined: January 25th, 2016, 4:00 am
Registered HYSPLIT User: Yes

Re: Vertical Mixing Coefficients

Post by lagom »

Thank you very much

bests

Daniele
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