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1 ; *********************************************** |
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2 ; interpolate into model grids (T31) |
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3 ; *********************************************** |
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4 load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl" |
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5 load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl" |
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6 load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl" |
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7 ;************************************************ |
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8 begin |
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9 |
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10 year = 2000 |
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11 |
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12 ;************************************************ |
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13 ; output data |
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14 ;************************************************ |
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15 diro = "/fis/cgd/cseg/people/jeff/clamp_data/lai/" |
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16 ; filo = "LAI_" + year + "_monthly_0.25deg.nc" |
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17 filo = "LAI_2000-2005_mean_0.25deg.nc" |
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18 ; filo = "LAI_2000-2005_ensemble_0.25deg.nc" |
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19 c = addfile(diro+filo,"c") |
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20 filedimdef(c,"time",-1,True) |
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21 |
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22 ;************************************************ |
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23 ; read in observed data |
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24 ;************************************************ |
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25 diri = "/fis/cgd/cseg/people/jeff/clamp_data/lai/" |
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26 ; fili = "LAI_" + year + "_monthly.nc" |
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27 fili = "LAI_2000-2005_mean_0.05deg.nc" |
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28 ; fili = "LAI_2000-2005_ensemble_0.05deg.nc" |
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29 g = addfile (diri+fili,"r") |
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30 bi = g->LAI |
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31 xi = g->lon |
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32 yi = g->lat |
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33 |
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34 ;************************************************ |
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35 ; change into 0-360E, 90S-90N |
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36 ; Observed NPP*scale_factor |
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37 ;************************************************ |
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38 |
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39 yi = (/ yi(::-1) /) |
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40 bi = (/ bi(:,::-1,:) /) |
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41 printVarSummary(bi) |
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42 |
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43 b2 = bi |
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44 x2 = xi |
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45 |
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46 nx = dimsizes(xi) |
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47 do i= 0,nx-1 |
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48 if (i .lt. 3600) then |
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49 p = i + 3600 |
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50 xi(p) = x2(i) + 360. |
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51 else |
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52 p = i - 3600 |
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53 xi(p) = x2(i) |
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54 end if |
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55 bi(:,:,p)= b2(:,:,i) |
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56 end do |
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57 |
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58 bi&lat = yi |
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59 bi&lon = xi |
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60 |
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61 ;print (xi) |
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62 ;print (yi) |
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63 ;exit |
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64 |
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65 ;************************************************ |
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66 ; create 0.25deg lat and lon |
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67 ;************************************************ |
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68 nlon = 360*4 |
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69 nlat = 180*4 |
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70 |
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71 lat = latGlobeFo(nlat, "lat", "latitude", "degrees_north") ; S->N |
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72 ; lat = (/ lat(::-1) /) ; N->S |
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73 lat&lat = lat |
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74 lon = lonGlobeFo(nlon, "lon", "longitude", "degrees_east") ; 0->360 |
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75 ; lon = (/ lon - 180. /) ; subtract 180 from all values ; 180W-180E |
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76 lon&lon = lon ; update coordinates |
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77 |
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78 ; print (lon) |
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79 ; print (lat) |
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80 |
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81 ; rad = 4.*atan(1.)/180. |
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82 ; clat = lat |
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83 ; clat = cos(lat*rad) |
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84 ; clat@long_name = "cos(latitude)" |
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85 ; delete(clat@units) |
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86 ; printVarSummary(clat) |
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87 |
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88 ;bo = new((/12,nlat,nlon/),float) |
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89 bo = new((/1,nlat,nlon/),float) |
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90 |
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91 ;do m = 0,11 |
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92 do m = 0,0 |
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93 do j=0,nlat-1 |
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94 if (j.eq.0 .or. j.eq.nlat-1) then |
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95 if (j.eq.0) then |
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96 LATS = -90. |
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97 LATN = lat(j)+0.5*(lat(j+1)-lat(j)) |
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98 end if |
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99 if (j.eq.nlat-1) then |
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100 LATS = lat(j)-0.5*(lat(j)-lat(j-1)) |
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101 LATN = 90. |
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102 end if |
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103 else |
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104 LATS = lat(j)-0.5*(lat(j)-lat(j-1)) |
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105 LATN = lat(j)+0.5*(lat(j+1)-lat(j)) |
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106 end if |
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107 |
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108 ; CLAT = clat({LATS:LATN}) ; do once for *slight* efficiency |
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109 ; TEMP = bi(:,{LATS:LATN},:) ; 2D [lat,lon] |
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110 |
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111 do i=0,nlon-1 |
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112 if (i.eq.0 .or. i.eq.nlon-1) then |
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113 if (i.eq.0) then |
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114 LONL = 0. |
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115 LONR = lon(i)+0.5*(lon(i+1)-lon(i)) |
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116 end if |
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117 if (i.eq.nlon-1) then |
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118 LONL = lon(i)-0.5*(lon(i)-lon(i-1)) |
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119 LONR = 360. |
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120 end if |
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121 else |
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122 LONL = lon(i)-0.5*(lon(i)-lon(i-1)) |
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123 LONR = lon(i)+0.5*(lon(i+1)-lon(i)) |
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124 end if |
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125 |
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126 ;print (LATS) |
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127 ;print (LATN) |
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128 ;print (LONL) |
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129 ;print (LONR) |
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130 |
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131 bo(m,j,i) = avg(bi(m,{LATS:LATN},{LONL:LONR})) |
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132 ; bo(m,j,i) = wgt_areaave(TEMP(m,{LONL:LONR}), CLAT, 1.0, 0) |
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133 end do |
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134 |
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135 ; delete(CLAT) |
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136 ; delete(TEMP) |
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137 end do |
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138 end do |
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139 |
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140 bo!0 = "time" |
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141 bo!1 = "lat" |
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142 bo!2 = "lon" |
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143 bo&time= bi&time |
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144 ; bo&time= 1 |
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145 bo&lat = lat |
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146 bo&lon = lon |
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147 ; bo@units = bi@units |
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148 ; bo@long_name = bi@long_name |
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149 bo@units = "none" |
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150 bo@long_name = "Leaf Area Index" |
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151 bo@_FillValue = bi@_FillValue |
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152 |
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153 c->LAI = bo |
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154 end |