[ncl-talk] NCL Query

[Kunal Bali]

Dear NCL

I am trying to plot the correlation map, But showing an error like







*check_for_lon_coord: Warning: Data either does not contain a valid
longitude coordinate array or doesn't contain one at all.(0)    A valid
longitude coordinate array should have a 'units' attribute equal to one of
the following values: (0)        'degrees_east' 'degrees-east'
'degree_east' 'degrees east' 'degrees_E' 'Degrees_east' 'degree_E'
'degreeE' 'degreesE' 'deg east'*

Could you please tell how to give valid longitude coordinates ??

The script i used is below.
ncl 0> load "/usr/local/lib/ncl/lib/ncarg/nclscripts/csm/gsn_code.ncl"
ncl 1> load "/usr/local/lib/ncl/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
ncl 2> load "/usr/local/lib/ncl/lib/ncarg/nclscripts/csm/contributed.ncl"
ncl 3> begin
ncl 4> in1 = addfile("/home/kunal/14-01.nc","r")
ncl 5> in2 = addfile("/home/kunal/02-09.nc","r")
ncl 6> var1 = in1->TotCH4_A
ncl 7> var2 = in2->TotCH4_A
ncl 8> maxlag = 1
ncl 9> ccr = esccr(var1,var2,maxlag)
ncl 10> copy_VarAtts(var1,ccr)
ncl 11> copy_VarCoords_1(var2,ccr)
ncl 12> wks = gsn_open_wks("x11","corr")
ncl 13> gsn_define_colormap(wks,"ncl_default")
ncl 14> res = True
ncl 15> res at cnFillOn = True
ncl 16> res at tiMainString = "Correlation"
ncl 17> plot = gsn_csm_contour_map_ce(wks,ccr(:,:),res)
ncl 18> end







Kunal Bali
Research Scholar
Radio & Atmospheric Science Division
CSIR - National Physical Laboratory
New Delhi - 110012
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