npp/03.0.05deg_to_T42.ncl
author Forrest Hoffman <forrest@climatemodeling.org>
Thu, 26 Mar 2009 14:02:21 -0400
changeset 1 4be95183fbcd
permissions -rw-r--r--
Modifications to scoring and graphics production for the final version of code for the C-LAMP paper in GCB.
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; ***********************************************
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; interpolate into model grids (T31)
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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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; output data
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;************************************************
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  diro  = "/fis/cgd/cseg/people/jeff/clamp_data/"
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  filo  = "Npp_T42_mean.nc"
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  c = addfile(diro+filo,"c")
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;************************************************
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; read in observed data
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;************************************************
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  diri  = "/fis/cgd/cseg/people/jeff/clamp_data/"
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  fili  = "Npp_0.05deg_mean.nc"
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  g     = addfile (diri+fili,"r")
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  bi    = g->NPP   
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  xi    = g->lon 
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  yi    = g->lat
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;************************************************
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; change into 0-360E, 90S-90N
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; Observed NPP*scale_factor
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;************************************************
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 scale_factor = 0.1
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 yi    = (/ yi(::-1) /)
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 bi    =  (/ bi(::-1,:) /)
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 b2    = bi
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 x2    = xi   
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 nx = dimsizes(xi)
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 do i= 0,nx-1
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    if (i .lt. 3600) then
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       p = i + 3600
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       xi(p) = x2(i) + 360.      
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    else
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       p = i - 3600
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       xi(p) = x2(i)
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    end if
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    bi(:,p)= b2(:,i) * scale_factor
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 end do
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 bi&lat =  yi
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 bi&lon =  xi
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;print (xi)
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;print (yi)
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;exit
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;************************************************
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; read in model data
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;************************************************
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;fili2  = "i01.04casa_1605-1629_ANN_climo.nc"
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 fili2  = "i01.03cn_1545-1569_ANN_climo.nc"
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 f     = addfile (diri+fili2,"r")
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 lon    = f->lon     
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 lat    = f->lat
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 nlon   = dimsizes(lon)
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 nlat   = dimsizes(lat)      
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; print (xi)
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; print (yi)
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; print (xo)
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; print (yo)
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;(A)
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;bo = linint2_Wrap(xi,yi,bi,True,xo,yo,0)
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;(B)
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  rad   = 4.*atan(1.)/180.
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  clat  = lat
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  clat  = cos(lat*rad)
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  clat@long_name = "cos(latitude)"
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  delete(clat@units)
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  printVarSummary(clat)
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 bo = new((/nlat,nlon/),float)
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    do j=0,nlat-1
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       if (j.eq.0 .or. j.eq.nlat-1) then
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          if (j.eq.0) then
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             LATS = -90.          
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             LATN = lat(j)+0.5*(lat(j+1)-lat(j))
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          end if
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          if (j.eq.nlat-1) then
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             LATS = lat(j)-0.5*(lat(j)-lat(j-1))
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             LATN = 90.                  
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          end if
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       else
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          LATS = lat(j)-0.5*(lat(j)-lat(j-1))
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          LATN = lat(j)+0.5*(lat(j+1)-lat(j))
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       end if
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;      CLAT = clat({LATS:LATN})      ; do once for *slight* efficiency
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;      TEMP = bi({LATS:LATN},:)      ; 2D [lat,lon]
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      do i=0,nlon-1
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       if (i.eq.0 .or. i.eq.nlon-1) then
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          if (i.eq.0) then
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             LONL = 0.          
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             LONR = lon(i)+0.5*(lon(i+1)-lon(i))
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          end if
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          if (i.eq.nlon-1) then
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             LONL = lon(i)-0.5*(lon(i)-lon(i-1))
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             LONR = 360.                 
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          end if
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       else
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          LONL = lon(i)-0.5*(lon(i)-lon(i-1))
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          LONR = lon(i)+0.5*(lon(i+1)-lon(i))
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       end if
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;print (LATS)
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;print (LATN)
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;print (LONL)
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;print (LONR)
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         bo(j,i) = avg(bi({LATS:LATN},{LONL:LONR}))  
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;        bo(j,i) = wgt_areaave(TEMP(:,{LONL:LONR}), CLAT, 1.0, 0)
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      end do
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;     delete(CLAT)
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;     delete(TEMP) 
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    end do
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  bo!0   = "lat"
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  bo!1   = "lon"
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  bo&lat =  lat
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  bo&lon =  lon
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  bo@units      = bi@units
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  bo@long_name  = bi@long_name
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; bo@_FillValue = bi@_FillValue
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  bo@_FillValue = 1.e+36
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  c->NPP  = bo
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end