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;*************************************************
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; ce_1.ncl
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;************************************************
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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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;************************************************
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begin
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;************************************************
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; read in model data
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;************************************************
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diri = "/fis/cgd/cseg/people/jeff/clamp_data/model/"
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fili = "b30.061m_401_425_ANN_climo.nc"
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g = addfile(diri+fili,"r")
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x = g->CO2
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xdim = dimsizes(x)
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nlev = xdim(1)
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y0 = x(0,0,:,:)
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; get the co2 at the lowest level
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y0 = x(0,nlev-1,:,:)
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; change to unit of observed (u mol/mol)
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; Model_units [=] kgCO2 / kgDryAir
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; 28.966 = molecular weight of dry air
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; 44. = molecular weight of CO2
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; u mol = 1e-6 mol
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factor = (28.966/44.) * 1e6
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y0 = y0 * factor
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y0@_FillValue = 1.e36
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y0@units = "u mol/mol"
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; y0 = where(y0 .lt. 287.,y0@_FillValue,y0)
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print (min(y0)+"/"+max(y0))
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;************************************************
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; create default plot
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;************************************************
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wks = gsn_open_wks("ps","xy") ; open a ps file
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gsn_define_colormap(wks,"gui_default") ; 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@gsnSpreadColors = True ; use full colormap
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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@mpFillOn = False ; Turn off map fill
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res@tiMainString = "Model b30.061m 401-425"
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res@gsnSpreadColors = True ; use full colormap
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res@cnLevelSelectionMode = "ManualLevels" ; Manual contour invtervals
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res@cnMinLevelValF = 286. ; Min level
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res@cnMaxLevelValF = 310. ; Max level
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res@cnLevelSpacingF = 2. ; interval
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plot = gsn_csm_contour_map_ce(wks,y0,res) ; for model
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system("convert xy.ps xy.png")
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end |