1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/npp/ob/npp_0.05deg_to_T42.ncl Thu Mar 26 14:31:28 2009 -0400
1.3 @@ -0,0 +1,146 @@
1.4 +; ***********************************************
1.5 +; interpolate into model grids (T31)
1.6 +; ***********************************************
1.7 +load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
1.8 +load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
1.9 +load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
1.10 +;************************************************
1.11 +begin
1.12 +;************************************************
1.13 +; output data
1.14 +;************************************************
1.15 + diro = ""
1.16 + filo = "npp_T42_mean_2000-2004.nc"
1.17 + c = addfile(diro+filo,"c")
1.18 +
1.19 +;************************************************
1.20 +; read in observed data
1.21 +;************************************************
1.22 + diri = ""
1.23 + fili = "npp_0.05deg_mean_2000-2004.nc"
1.24 + g = addfile (diri+fili,"r")
1.25 + bi = g->NPP
1.26 + xi = g->lon
1.27 + yi = g->lat
1.28 +
1.29 +;************************************************
1.30 +; change into 0-360E, 90S-90N
1.31 +; Observed NPP*scale_factor
1.32 +;************************************************
1.33 +
1.34 + ;scale_factor = 0.1
1.35 + ; FMH : Now the scaling occurs in the previous routine the writes out the mean
1.36 + ; netCDF file, so don't scale again here.
1.37 + scale_factor = 1.
1.38 +
1.39 + yi = (/ yi(::-1) /)
1.40 + bi = (/ bi(::-1,:) /)
1.41 + b2 = bi
1.42 + x2 = xi
1.43 +
1.44 + nx = dimsizes(xi)
1.45 + do i= 0,nx-1
1.46 + if (i .lt. 3600) then
1.47 + p = i + 3600
1.48 + xi(p) = x2(i) + 360.
1.49 + else
1.50 + p = i - 3600
1.51 + xi(p) = x2(i)
1.52 + end if
1.53 + bi(:,p)= b2(:,i) * scale_factor
1.54 + end do
1.55 +
1.56 + bi&lat = yi
1.57 + bi&lon = xi
1.58 +
1.59 +;print (xi)
1.60 +;print (yi)
1.61 +;exit
1.62 +
1.63 +;************************************************
1.64 +; read in model data
1.65 +;************************************************
1.66 +;fili2 = "i01.04casa_1605-1629_ANN_climo.nc"
1.67 + diri = "../../model/"
1.68 + fili2 = "i01.10cn_2000-2004_ANN_climo.nc"
1.69 + f = addfile (diri+fili2,"r")
1.70 +
1.71 + lon = f->lon
1.72 + lat = f->lat
1.73 + nlon = dimsizes(lon)
1.74 + nlat = dimsizes(lat)
1.75 +
1.76 +; print (xi)
1.77 +; print (yi)
1.78 +; print (xo)
1.79 +; print (yo)
1.80 +
1.81 +;(A)
1.82 +;bo = linint2_Wrap(xi,yi,bi,True,xo,yo,0)
1.83 +
1.84 +;(B)
1.85 +
1.86 + rad = 4.*atan(1.)/180.
1.87 + clat = lat
1.88 + clat = cos(lat*rad)
1.89 + clat@long_name = "cos(latitude)"
1.90 + delete(clat@units)
1.91 + printVarSummary(clat)
1.92 +
1.93 + bo = new((/nlat,nlon/),float)
1.94 + do j=0,nlat-1
1.95 + if (j.eq.0 .or. j.eq.nlat-1) then
1.96 + if (j.eq.0) then
1.97 + LATS = -90.
1.98 + LATN = lat(j)+0.5*(lat(j+1)-lat(j))
1.99 + end if
1.100 + if (j.eq.nlat-1) then
1.101 + LATS = lat(j)-0.5*(lat(j)-lat(j-1))
1.102 + LATN = 90.
1.103 + end if
1.104 + else
1.105 + LATS = lat(j)-0.5*(lat(j)-lat(j-1))
1.106 + LATN = lat(j)+0.5*(lat(j+1)-lat(j))
1.107 + end if
1.108 +
1.109 +; CLAT = clat({LATS:LATN}) ; do once for *slight* efficiency
1.110 +; TEMP = bi({LATS:LATN},:) ; 2D [lat,lon]
1.111 +
1.112 + do i=0,nlon-1
1.113 + if (i.eq.0 .or. i.eq.nlon-1) then
1.114 + if (i.eq.0) then
1.115 + LONL = 0.
1.116 + LONR = lon(i)+0.5*(lon(i+1)-lon(i))
1.117 + end if
1.118 + if (i.eq.nlon-1) then
1.119 + LONL = lon(i)-0.5*(lon(i)-lon(i-1))
1.120 + LONR = 360.
1.121 + end if
1.122 + else
1.123 + LONL = lon(i)-0.5*(lon(i)-lon(i-1))
1.124 + LONR = lon(i)+0.5*(lon(i+1)-lon(i))
1.125 + end if
1.126 +
1.127 +;print (LATS)
1.128 +;print (LATN)
1.129 +;print (LONL)
1.130 +;print (LONR)
1.131 + bo(j,i) = avg(bi({LATS:LATN},{LONL:LONR}))
1.132 +; bo(j,i) = wgt_areaave(TEMP(:,{LONL:LONR}), CLAT, 1.0, 0)
1.133 + end do
1.134 +
1.135 +; delete(CLAT)
1.136 +; delete(TEMP)
1.137 + end do
1.138 +
1.139 + bo!0 = "lat"
1.140 + bo!1 = "lon"
1.141 + bo&lat = lat
1.142 + bo&lon = lon
1.143 + bo@units = bi@units
1.144 + bo@long_name = bi@long_name
1.145 +; bo@_FillValue = bi@_FillValue
1.146 + bo@_FillValue = 1.e+36
1.147 +
1.148 + c->NPP = bo
1.149 +end