Re: shift in wind field

From: Mary Haley <haley_at_nyahnyahspammersnyahnyah>
Date: Wed, 18 Mar 2009 14:48:31 -0600 (MDT)

Eric,

It looks like you are doing the correct steps.

Would it be possible for you to provide the full script and data?

Please go to http://www.ncl.ucar.edu/report_bug.shtml
and see instructions near the bottom for ftp.

Thanks,

--Mary

On Tue, 17 Mar 2009 elu_at_iastate.edu wrote:

> A question for you experts:
>
> I'm plotting the wind speed field of a regional model, and find the field has
> a southeastward shift relative to the map of the region.
>
> The model projection is "polar_stereographic", and I plotted the field
> as "LambertConformal". The plotting part of the file is copied here.
>
> ---------------------
> w = ........
>
> lat2d = f->lat
> lon2d = f->lon
> dimlc = dimsizes(lat2d)
> nlat = dimlc(0)
> mlon = dimlc(1)
>
> wks = gsn_open_wks ("eps", "wind")
>
> res = True
> res_at_cnFillOn = True
> res_at_cnLinesOn = False
> res_at_gsnSpreadColors = True
> res_at_mpGridAndLimbOn = True
> res_at_pmTickMarkDisplayMode = "Always"
> res_at_tmXTOn = False
> res_at_gsnAddCyclic = False
> res_at_tfDoNDCOverlay = True
>
> res_at_sfXArray = lon2d
> res_at_sfYArray = lat2d
>
> res_at_mpLimitMode = "Corners"
> res_at_mpLeftCornerLatF = lat2d(0,0)
> res_at_mpLeftCornerLonF = lon2d(0,0)
> res_at_mpRightCornerLatF = lat2d(nlat-1,mlon-1)
> res_at_mpRightCornerLonF = lon2d(nlat-1,mlon-1)
> res_at_mpProjection = "LambertConformal"
>
> res_at_mpLambertParallel1F = 30.
> res_at_mpLambertParallel2F = 60.
> res_at_mpLambertMeridianF = -97.
>
> res_at_mpOutlineDrawOrder = "PostDraw"
> res_at_mpOutlineBoundarySets = "GeophysicalAndUSStates"
>
> res_at_cnLevelSelectionMode = "ManualLevels"
> res_at_cnMinLevelValF = 0.0
> res_at_cnMaxLevelValF = 4.0
> res_at_cnLevelSpacingF = 0.5
>
> plot = gsn_csm_contour_map(wks,w,res)
>
> end
> ------------------------------------
>
> Thanks for help.
> Eric
>
>
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Received on Wed Mar 18 2009 - 14:48:31 MDT

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