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load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
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load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
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load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
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begin
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nlat = 3600
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mlon = 7200
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diri = "/fis/cgd/cseg/people/jeff/clamp/"
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fili = "Npp_0.05deg_mean.int16"
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diro = "/fis/cgd/cseg/people/jeff/clamp/"
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filo = "Npp_0.05deg_mean_3.nc"
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c = addfile(diro+filo,"c")
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; I think (a) the file is "little endian"; read into short
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; (b) the _FillValue is 32700
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setfileoption("bin","ReadByteOrder","LittleEndian")
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xShort= fbindirread(diri+fili,0, (/nlat,mlon/), "short")
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xShort@_FillValue= inttoshort(32700)
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;;xShort@scale_factor = ?????
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;;xShort@add_offset = ?????
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x = short2flt( xShort )
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;;print(xShort(:,1800)+" "+x(:,1800)) ; look at the values
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delete(xShort)
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x@long_name = "net primary production"
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x@units = "gC/m^2/year"
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; x@_FillValue = -17281 ; orig fill
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x@_FillValue = 1e20 ; new fill
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lat = latGlobeFo(nlat, "lat", "latitude", "degrees_north")
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lat = (/ lat(::-1) /) ; make N->S
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lon = lonGlobeFo(mlon, "lon", "longitude", "degrees_east")
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lon = (/ lon - 180. /) ; subtract 180 from all values
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lon&lon = lon ; update coordinates
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x!0 = "lat"
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x!1 = "lon"
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x&lat= lat
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x&lon= lon
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c->NPP = x
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exit
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;************************************************
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; create default plot
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;************************************************
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setvalues NhlGetWorkspaceObjectId()
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"wsMaximumSize" : 199999999
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end setvalues
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wks = gsn_open_wks("ps","Npp_rdBinPlt") ; open a ps file
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;gsn_define_colormap(wks,"wgne15") ; choose colormap
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res = True ; Use plot options
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res@cnFillOn = True ; Turn on color fill
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res@cnFillMode = "RasterFill" ; Turn on raster color
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res@lbLabelAutoStride = True
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res@cnLinesOn = False ; Turn off contourn lines
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;res@gsnSpreadColors = True ; use full colormap
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res@mpFillOn = False ; Turn off map fill
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;res@cnLevelSelectionMode = "ManualLevels" ; Manual contour invtervals
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;res@cnMinLevelValF = ; Min level
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;res@cnMaxLevelValF = ; Max level
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;res@cnLevelSpacingF = ; interval
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res@tiMainString = fili
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plot = gsn_csm_contour_map_ce(wks,x,res)
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end
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