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How to change minimum PBL mixing coefficient [m^2 s^-1] within the MYNN2 scheme?

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caterina_mogno

New member
Hi all,

I would like to conduct some sensitivity runs by modifying the minimum PBL mixing coefficient [m^2 s^-1] within the MYNN2 PBL scheme.

Does anyone know how to do it in the code/namelist?

Thank you in advance!

Best,

Caterina
 
This post has been moved to the 'WRF Physics' section of the forum, as this pertains specifically to physics. Someone will respond to your inquiry soon.
 
Hi Caterina,
The mixing coefficients for momentum, temperature and moisture are computed in subroutine mym_turbulence in module_bl_mynn.F, and the variables are dfm, dfh and dfq. Note that these are divided by dz, so the unit is just m/s. There is a note at the top of the subroutine that states this.
Ming
 
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