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Creating near-surface zonal and meridional wind output variables?

Is there a way for me to add near-surface (2m or 10m) zonal and meridional winds to the CESM output for new simulations?  It seems like the closest outputs are the lowest levels of u and v (which are still 50-60m above the surface), and the surface wind stress variables.

I looked at the cam_diagnostics.F90 file and considered adding the new variables myself, using the 2m air temperature variable (trefht) as a guide, but it's unclear to me how the interpolation to the 2m level is made.  Is anyone familiar with this?  Is the calculation done in this file or somewhere else?  I've added some other new output variables, but those were simply sums of existing variables, which made more sense to me.
 

hannay

Cecile Hannay
AMWG Liaison
Staff member
You can add U10 but it doesn't separate the meridional and zonal components. 
 
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