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; ***********************************************
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; zonal average plot
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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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load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
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;************************************************
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begin
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;************************************************
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; read in observed data
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;************************************************
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a = addfile ("Npp_T42_mean.nc","r")
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b = addfile ("i01.03cn_1545-1569_ANN_climo.nc","r")
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c = addfile ("i01.04casa_1605-1629_ANN_climo.nc","r")
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ta = a->NPP
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tb = b->NPP
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tc = c->NPP
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lon = a->lon
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lat = a->lat
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nlon = dimsizes(lon)
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nlat = dimsizes(lat)
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s = new ((/3,nlat/), float)
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;************************************************
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; set value to 0. at missing point of observed
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;************************************************
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delta = 0.00000000001
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x0 = tb(0,:,:)
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ta = where(ismissing(ta).and.(ismissing(x0).or.(x0.lt.delta)),0.,ta)
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s(0,:) = zonalAve(ta(:,:))
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delete (ta)
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;************************************************
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; for model data
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;************************************************
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scale_factor = 86400.*365.
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s(1,:) = zonalAve(tb(0,:,:)) * scale_factor
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delete (tb)
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s(2,:) = zonalAve(tc(0,:,:)) * scale_factor
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delete (tc)
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s@long_name = "NPP (gC/m2/year)"
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;*****************************************************
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; create plot
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;*****************************************************
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wks = gsn_open_wks("png","xy") ; create plot
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i = NhlNewColor(wks,1.0,0.71,0.76) ; add color to colormap
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j = NhlNewColor(wks,0.64,0.71,0.8) ; ditto
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res = True ; plot mods desired
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res@gsnDraw = False ; don't draw yet
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res@gsnFrame = False ; don't advance frame yet
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; res@vpHeightF = 0.4 ; change aspect ratio of plot
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; res@vpWidthF = 0.7
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; res@trXMinF = 1890 ; set x-axis minimum
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res@xyMonoLineColor = "False" ; want colored lines
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res@xyLineColors = (/"Red","Blue","Black"/) ; colors chosen
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; res@xyLineThicknesses = (/3.,3.,4./) ; line thicknesses
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res@xyLineThicknesses = (/2.,2.,2./) ; line thicknesses
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res@xyDashPatterns = (/0.,0.,0./) ; make all lines solid
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res@tiMainString = "Zoanl Average"
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res@tiYAxisString = "NPP (gC/m2/year)" ; add a axis title
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res@txFontHeightF = 0.0195 ; change title font heights
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plot = gsn_csm_xy (wks,lat,s,res) ; create plot
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; plot = fill_xy2(wks,plot(0),time,mnmx(2,:),mnmx(3,:),(/0.64,0.71,0.8/),\
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; (/0.64,0.71,0.8/))
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; plot = fill_xy2(wks,plot(0),time,mnmx(0,:),mnmx(1,:),(/1.0,0.71,0.76/),\
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; (/1.0,0.71,0.76/))
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;*****************************************************
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; Manually create legend
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;*****************************************************
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res_text = True ; text mods desired
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res_text@txFontHeightF = 0.015 ; change text size
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res_text@txJust = "CenterLeft" ; text justification
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res_lines = True ; polyline mods desired
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res_lines@gsLineDashPattern = 0. ; solid line
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res_lines@gsLineThicknessF = 5. ; line thicker
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res_lines@gsLineColor = "red" ; line color
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xx = (/-85.,-75./)
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yy = (/1400.,1400./)
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gsn_polyline(wks,plot,xx,yy,res_lines) ; add polyline
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gsn_text(wks,plot,"Observed",-70.,1400.,res_text); add text
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yy = (/1500.,1500./)
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res_lines@gsLineColor = "blue" ; change to blue
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gsn_polyline(wks,plot,xx,yy,res_lines) ; add polyline
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gsn_text(wks,plot,"Model i01.03cn",-70.,1500.,res_text) ; add text
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yy = (/1600.,1600./)
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res_lines@gsLineColor = "black" ; change to black
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gsn_polyline(wks,plot,xx,yy,res_lines) ; add poly line
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gsn_text(wks,plot,"Model i01.04casa",-70.,1600.,res_text) ; add text
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;*****************************************************
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; Manually create titles
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;*****************************************************
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; res_text@txJust = "CenterCenter" ; change justification
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; res_text@txFontHeightF = 0.03 ; change font size
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; gsn_text_ndc(wks,"Parallel Climate Model Ensembles",0.55,0.90,res_text)
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; res_text@txFontHeightF = 0.02 ; change font size
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; gsn_text_ndc(wks,"Global Temperature Anomalies",0.55,0.86,res_text)
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; res_text@txFontHeightF = 0.015 ; change font size
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; gsn_text_ndc(wks,"from 1890-1919 average",0.55,0.83,res_text)
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draw(plot)
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frame(wks) ; advance frame
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end
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