WRF vertical velocity vectors on vertical cross section

From: <jwsmith_at_nyahnyahspammersnyahnyah>
Date: Thu Nov 12 2009 - 15:55:46 MST

Hello,

I want to put WRF vertical velocity (w) vectors on vertical cross
section plots.
I have attached the script. I attempt to use the the outline from
wrfCrosssection3.ncl. I add the following additional lines:

     u = wrf_user_getvar(a, "ua",it) ; u averaged to mass points ;
     u = u * 1.94386 ; kts
     u@units = "kts"
     w = wrf_user_getvar(a, "wa",it) ; w averaged to mass points ;
     w = w * 1.94386 ; kts
     w@units = "kts"

in the loop I add:

        wp = vinth2p(w,p,1,opts)
        up = vinth2p(u,p,1,opts)

but it says nine vectors are needed

Then to actually print the vectors I add these lines:

      ; Plotting options for w wind vectors
         opts_w = res
         opts_w@vcRefAnnoOrthogonalPosF = -0.165 ; move
reference vec up
         opts_w@pmLabelBarOrthogonalPosF = -0.05 ; move
color label bar up
         opts_w@vcRefMagnitudeF = 0.04 ; define
vector ref mag
         opts_w@vcRefLengthF = 0.045 ; define
length of vec ref

I add up and wp to this line
wrf_overlay(wks,(/contour_o3, up, wp/),True)

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Received on Thu Nov 12 15:55:56 2009

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