Error in ploting correlation

From: Rashed Mahmood <rashidcomsis_at_nyahnyahspammersnyahnyah>
Date: Fri Jul 01 2011 - 22:55:53 MDT

Hi all

I am trying to display point correlation between precipitation and sea
surface temperature.
NCL can draw the plot (attached here) but the problem is that it assigns
some color to land regions (which I expect to be white) from the colorbar .
Can anyone explain whats happening?
Here is my simple code:

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"

begin

in1=addfile("/mnt/storage-space/disk1/lshl/khan/hunt/prate.mon.mean.nc.nc
","r")

in2=addfile("/mnt/storage-space/disk1/lshl/khan/hunt/sst.mon.mean.nc.nc
","r")

p1=in1->prate(0:743,:,:)

s1=short2flt(in2->sst(1128:1871,:,:))

 JAS1=month_to_season(p1,"JJA")

JAS2=month_to_season(s1,"MAM")

y=JAS2(lat|:,lon|:,time|:)

x1=wgt_areaave_Wrap(JAS1(:,35:45,35:49),1.0, 1.0, 0) ;1.0 means no special
weights for lat and lon.

x=x1*86400

copy_VarCoords(x1,x)

c = escorc(y,x)

temp=JAS2(0,:,:)

copy_VarCoords(temp,c)

printVarSummary(c)

;********************************************************************************

wks = gsn_open_wks
("pdf","/mnt/storage-space/disk1/lshl/khan/hunt/cor_example")

gsn_define_colormap(wks,"precip_diff_12lev")

res = True

res@cnFillOn = True

res@cnLinesOn = False

res@gsnSpreadColors = True

res@lbAutoLabelStride = True

plot = gsn_csm_contour_map_ce(wks,c,res)

end
Regards
Rashed

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Received on Fri Jul 1 22:56:12 2011

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