Hi Xin,
To zoom in on the map, you can no longer set tfDoNDCOverlay to True, unless you reset all the map parameters to reflect the new map projection. There's a special way of doing this if you are using wrf_xxxx plotting functions, but it looks like you are using gsn_xxx plotting functions.
Please see example WRF_lc_2.ncl at:
http://www.ncl.ucar.edu/Applications/wrflc.shtml
and see what it does with XLAT and XLONG:
x@lat2d = f->XLAT(0,:,:) ; direct assignment
x@lon2d = f->XLONG(0,:,:)
You will also need to set res@gsnAddCyclic to False, if you haven't already.
--Mary
On Feb 21, 2013, at 2:27 AM, Xin Xi wrote:
> Hello there,
> I have a data field from WRF model in Lambertconformal project, shown in a.png. I simply used WRF_map_c(wrf_file,res,0) to set up mp resources.
> Now I want to make a plot of only a part of the domain, 50E-80E, far south of domain-50N, I used the following setup; the data field b.png comes mismatched with the map outline. Can someone help on this?
> res@mpProjection = "LambertConformal"
> res@mpLimitMode = "LatLon"
> res@mpMinLatF=30.0
> res@mpMaxLatF=50.0
> res@mpMinLonF=50.0
> res@mpMaxLonF=80.0
> res@mpCenterLonF = wrf_file@CEN_LON
> res@mpLambertParallel1F = wrf_file@TRUELAT1
> res@mpLambertParallel2F = wrf_file@TRUELAT2
> res@mpLambertMeridianF = wrf_file@CEN_LON
> res@gsnMaskLambertConformal = True
>
>
> Thanks,
> Xin
> <a.png><b.png>_______________________________________________
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Received on Thu Feb 21 08:42:31 2013
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