forrest@0: ; ***********************************************
forrest@0: ; xy_4.ncl
forrest@0: ; ***********************************************
forrest@0: load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
forrest@0: load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
forrest@0: ;************************************************
forrest@0: begin
forrest@0: ;************************************************
forrest@0: ; read in data
forrest@0: ;************************************************
forrest@0:  g     = addfile ("data.81.nc","r")
forrest@0: ;g     = addfile ("data.933.nc","r")
forrest@0:  a     = g->SITE_ID  ; get ob data
forrest@0:  xo    = g->LONG_DD  ; get ob data
forrest@0:  yo    = g->LAT_DD   ; get ob data
forrest@0: 
forrest@0:  print (xo)
forrest@0:  nx = dimsizes(xo)
forrest@0:  do i= 0,nx-1
forrest@0:     if (xo(i) .lt. 0.) then
forrest@0:         xo(i) = xo(i)+ 360.
forrest@0:     end if
forrest@0:  end do
forrest@0:  print (xo)
forrest@0: 
forrest@0:  a@long_name = "SITE_ID"
forrest@0:  
forrest@0: ;f     = addfile ("i01.03cn_1545-1569_ANN_climo.nc","r")
forrest@0:  f     = addfile ("i01.04casa_1605-1629_ANN_climo.nc","r")
forrest@0:  b     = f->NPP    ; get model data
forrest@0:  xi    = f->lon      ; get model data
forrest@0:  yi    = f->lat      ; get model data
forrest@0: 
forrest@0:  sec_to_year = 86400.*365.
forrest@0: 
forrest@0:  bo = linint2_points(xi,yi,b,True,xo,yo,0) * sec_to_year
forrest@0:  print (bo)
forrest@0: 
forrest@0:  bo@long_name = "NPP (gC/m2/year)"
forrest@0:  
forrest@0: ;************************************************
forrest@0: ; plotting parameters
forrest@0: ;************************************************
forrest@0: ;wks   = gsn_open_wks ("ps","xy")                 ; open workstation
forrest@0:  wks   = gsn_open_wks ("png","xy")
forrest@0: 
forrest@0:  res                   = True                     ; plot mods desired
forrest@0: ;res@tiMainString      = "Model i01.03cn 81 sites"     ; add title
forrest@0: ;res@tiMainString      = "Model i01.03cn 933 sites"    ; add title
forrest@0:  res@tiMainString      = "Model i01.04casa 81 sites"   ; add title
forrest@0: ;res@tiMainString      = "Model i01.04casa 933 sites"  ; add title
forrest@0:  res@xyMarkLineModes   = "Markers"                ; choose which have markers
forrest@0:  res@xyMarkers         =  16                      ; choose type of marker  
forrest@0:  res@xyMarkerColor     = "red"                    ; Marker color
forrest@0:  res@xyMarkerSizeF     = 0.01                     ; Marker size (default 0.01)
forrest@0: 
forrest@0:  res@tmLabelAutoStride = True                     ; nice tick mark labels
forrest@0: 
forrest@0: ;plot  = gsn_csm_xy (wks,t&nvalues,t(:),res) ; create plot
forrest@0:  plot  = gsn_csm_xy (wks,a,bo,res) ; create plot
forrest@0: 
forrest@0: ;************************************************
forrest@0: ; now create our own markers using NhlNewMarker 
forrest@0: ; available since ncl version 4.2.0.a030
forrest@0: ;************************************************
forrest@0: ; this example will create filled squares. You will have to play with
forrest@0: ; the numbers a but to get the size and shape you desire. On the
forrest@0: ; documentation page for NhlNewMarker, there is a table of values for
forrest@0: ; the current marker set, to give you an idea of where to start.
forrest@0: 
forrest@0: ;  res@xyMarkerColor = "blue"
forrest@0: ;  res@tiMainString  = "Make your own marker"
forrest@0: ;  res@xyMarkers     = NhlNewMarker(wks, "^", 19, 0.0, 0.0, 1.3125, 1.5, 0.0)
forrest@0: ;  plot              = gsn_csm_xy (wks,a,bo,res) 
forrest@0: 
forrest@0: end