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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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; read model grid
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;************************************************
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model_grid = "T31"
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;model_grid = "T42"
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;model_grid = "1.9"
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diri = "/fis/cgd/cseg/people/jeff/clamp_data/surface_model/"
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fili = "lnd_"+ model_grid +".nc"
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f = addfile (diri+fili,"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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;************************************************
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; output data
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;************************************************
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diro = "/fis/cgd/cseg/people/jeff/clamp_data/observed/biomass/"
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filo = "amazon_mask_"+model_grid + ".nc"
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c = addfile(diro+filo,"c")
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;************************************************
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; read 1x1 amazon_mask data
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;************************************************
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diri = "/fis/cgd/cseg/people/jeff/clamp_data/observed/biomass/"
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fili = "amazon_mask_1x1.nc"
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g = addfile(diri+fili,"r")
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bi = g->mask_amazon
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xi = g->lon
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yi = g->lat
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;************************************************
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; change from -180-180, 90N-90S 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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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. 180) then
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p = i + 180
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xi(p) = x2(i) + 360.
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else
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p = i - 180
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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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;(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 = where(bo.ge.0.5, 1.0,0.)
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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 = "amazon mask"
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; bo@_FillValue = bi@_FillValue
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bo@_FillValue = 1.e+36
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c->mask_amazon = bo
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end |