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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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year = 2000
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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/lai/"
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; filo = "LAI_" + year + "_monthly_0.25deg.nc"
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filo = "LAI_2000-2005_mean_0.25deg.nc"
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; filo = "LAI_2000-2005_ensemble_0.25deg.nc"
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c = addfile(diro+filo,"c")
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filedimdef(c,"time",-1,True)
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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/lai/"
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; fili = "LAI_" + year + "_monthly.nc"
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fili = "LAI_2000-2005_mean_0.05deg.nc"
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; fili = "LAI_2000-2005_ensemble_0.05deg.nc"
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g = addfile (diri+fili,"r")
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bi = g->LAI
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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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yi = (/ yi(::-1) /)
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bi = (/ bi(:,::-1,:) /)
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printVarSummary(bi)
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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)
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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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; create 0.25deg lat and lon
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;************************************************
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nlon = 360*4
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nlat = 180*4
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lat = latGlobeFo(nlat, "lat", "latitude", "degrees_north") ; S->N
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; lat = (/ lat(::-1) /) ; N->S
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lat&lat = lat
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lon = lonGlobeFo(nlon, "lon", "longitude", "degrees_east") ; 0->360
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; lon = (/ lon - 180. /) ; subtract 180 from all values ; 180W-180E
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lon&lon = lon ; update coordinates
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; print (lon)
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; print (lat)
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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((/12,nlat,nlon/),float)
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bo = new((/1,nlat,nlon/),float)
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;do m = 0,11
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do m = 0,0
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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(m,j,i) = avg(bi(m,{LATS:LATN},{LONL:LONR}))
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; bo(m,j,i) = wgt_areaave(TEMP(m,{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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end do
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bo!0 = "time"
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bo!1 = "lat"
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bo!2 = "lon"
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bo&time= bi&time
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; bo&time= 1
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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@units = "none"
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bo@long_name = "Leaf Area Index"
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bo@_FillValue = bi@_FillValue
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c->LAI = bo
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end |