1 | ! (c) 2008, Lawrence Livermore National Security Limited Liability Corporation. |
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2 | ! All rights reserved. |
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3 | ! $Revision: 23 $, $Date: 2011-03-31 15:41:37 +0200 (jeu. 31 mars 2011) $ |
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4 | ! $URL: http://cfmip-obs-sim.googlecode.com/svn/stable/v1.4.0/llnl/prec_scops.f $ |
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5 | ! |
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6 | ! Redistribution and use in source and binary forms, with or without modification, are permitted |
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7 | ! provided that the following conditions are met: |
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8 | ! |
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9 | ! * Redistributions of source code must retain the above copyright notice, this list |
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10 | ! of conditions and the following disclaimer. |
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11 | ! * Redistributions in binary form must reproduce the above copyright notice, this list |
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12 | ! of conditions and the following disclaimer in the documentation and/or other materials |
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13 | ! provided with the distribution. |
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14 | ! * Neither the name of the Lawrence Livermore National Security Limited Liability Corporation |
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15 | ! nor the names of its contributors may be used to endorse or promote products derived from |
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16 | ! this software without specific prior written permission. |
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17 | ! |
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18 | ! THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR |
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19 | ! IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
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20 | ! FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
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21 | ! CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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22 | ! DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | ! DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER |
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24 | ! IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
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25 | ! OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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26 | |
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27 | subroutine prec_scops(npoints,nlev,ncol,ls_p_rate,cv_p_rate, & |
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28 | frac_out,prec_frac) |
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29 | |
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30 | |
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31 | implicit none |
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32 | |
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33 | INTEGER :: npoints ! number of model points in the horizontal |
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34 | INTEGER :: nlev ! number of model levels in column |
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35 | INTEGER :: ncol ! number of subcolumns |
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36 | |
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37 | INTEGER :: i,j,ilev,ibox,cv_col |
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38 | |
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39 | REAL :: ls_p_rate(npoints,nlev),cv_p_rate(npoints,nlev) |
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40 | |
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41 | REAL :: frac_out(npoints,ncol,nlev) ! boxes gridbox divided up into |
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42 | ! ! Equivalent of BOX in original version, but |
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43 | ! ! indexed by column then row, rather than |
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44 | ! ! by row then column |
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45 | ! !TOA to SURFACE!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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46 | REAL :: prec_frac(npoints,ncol,nlev) ! 0 -> clear sky |
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47 | ! ! 1 -> LS precipitation |
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48 | ! ! 2 -> CONV precipitation |
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49 | ! ! 3 -> both |
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50 | ! !TOA to SURFACE!!!!!!!!!!!!!!!!!! |
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51 | |
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52 | INTEGER :: flag_ls, flag_cv |
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53 | INTEGER :: frac_out_ls(npoints,ncol),frac_out_cv(npoints,ncol) !flag variables for |
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54 | ! ! stratiform cloud and convective cloud in the vertical column |
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55 | |
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56 | cv_col = 0.05*ncol |
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57 | if (cv_col .eq. 0) cv_col=1 |
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58 | |
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59 | do ilev=1,nlev |
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60 | do ibox=1,ncol |
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61 | do j=1,npoints |
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62 | prec_frac(j,ibox,ilev) = 0 |
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63 | enddo |
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64 | enddo |
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65 | enddo |
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66 | |
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67 | do j=1,npoints |
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68 | do ibox=1,ncol |
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69 | frac_out_ls(j,ibox)=0 |
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70 | frac_out_cv(j,ibox)=0 |
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71 | flag_ls=0 |
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72 | flag_cv=0 |
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73 | do ilev=1,nlev |
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74 | if (frac_out(j,ibox,ilev) .eq. 1) then |
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75 | flag_ls=1 |
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76 | endif |
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77 | if (frac_out(j,ibox,ilev) .eq. 2) then |
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78 | flag_cv=1 |
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79 | endif |
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80 | enddo !loop over nlev |
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81 | if (flag_ls .eq. 1) then |
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82 | frac_out_ls(j,ibox)=1 |
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83 | endif |
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84 | if (flag_cv .eq. 1) then |
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85 | frac_out_cv(j,ibox)=1 |
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86 | endif |
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87 | enddo ! loop over ncol |
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88 | enddo ! loop over npoints |
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89 | |
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90 | ! initialize the top layer |
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91 | do j=1,npoints |
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92 | flag_ls=0 |
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93 | flag_cv=0 |
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94 | |
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95 | if (ls_p_rate(j,1) .gt. 0.) then |
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96 | do ibox=1,ncol ! possibility ONE |
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97 | if (frac_out(j,ibox,1) .eq. 1) then |
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98 | prec_frac(j,ibox,1) = 1 |
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99 | flag_ls=1 |
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100 | endif |
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101 | enddo ! loop over ncol |
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102 | if (flag_ls .eq. 0) then ! possibility THREE |
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103 | do ibox=1,ncol |
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104 | if (frac_out(j,ibox,2) .eq. 1) then |
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105 | prec_frac(j,ibox,1) = 1 |
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106 | flag_ls=1 |
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107 | endif |
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108 | enddo ! loop over ncol |
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109 | endif |
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110 | if (flag_ls .eq. 0) then ! possibility Four |
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111 | do ibox=1,ncol |
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112 | if (frac_out_ls(j,ibox) .eq. 1) then |
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113 | prec_frac(j,ibox,1) = 1 |
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114 | flag_ls=1 |
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115 | endif |
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116 | enddo ! loop over ncol |
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117 | endif |
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118 | if (flag_ls .eq. 0) then ! possibility Five |
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119 | do ibox=1,ncol |
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120 | ! ! prec_frac(j,1:ncol,1) = 1 |
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121 | prec_frac(j,ibox,1) = 1 |
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122 | enddo ! loop over ncol |
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123 | endif |
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124 | endif |
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125 | ! ! There is large scale precipitation |
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126 | |
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127 | if (cv_p_rate(j,1) .gt. 0.) then |
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128 | do ibox=1,ncol ! possibility ONE |
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129 | if (frac_out(j,ibox,1) .eq. 2) then |
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130 | if (prec_frac(j,ibox,1) .eq. 0) then |
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131 | prec_frac(j,ibox,1) = 2 |
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132 | else |
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133 | prec_frac(j,ibox,1) = 3 |
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134 | endif |
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135 | flag_cv=1 |
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136 | endif |
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137 | enddo ! loop over ncol |
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138 | if (flag_cv .eq. 0) then ! possibility THREE |
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139 | do ibox=1,ncol |
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140 | if (frac_out(j,ibox,2) .eq. 2) then |
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141 | if (prec_frac(j,ibox,1) .eq. 0) then |
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142 | prec_frac(j,ibox,1) = 2 |
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143 | else |
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144 | prec_frac(j,ibox,1) = 3 |
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145 | endif |
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146 | flag_cv=1 |
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147 | endif |
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148 | enddo ! loop over ncol |
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149 | endif |
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150 | if (flag_cv .eq. 0) then ! possibility Four |
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151 | do ibox=1,ncol |
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152 | if (frac_out_cv(j,ibox) .eq. 1) then |
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153 | if (prec_frac(j,ibox,1) .eq. 0) then |
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154 | prec_frac(j,ibox,1) = 2 |
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155 | else |
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156 | prec_frac(j,ibox,1) = 3 |
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157 | endif |
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158 | flag_cv=1 |
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159 | endif |
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160 | enddo ! loop over ncol |
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161 | endif |
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162 | if (flag_cv .eq. 0) then ! possibility Five |
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163 | do ibox=1,cv_col |
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164 | if (prec_frac(j,ibox,1) .eq. 0) then |
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165 | prec_frac(j,ibox,1) = 2 |
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166 | else |
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167 | prec_frac(j,ibox,1) = 3 |
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168 | endif |
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169 | enddo !loop over cv_col |
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170 | endif |
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171 | endif |
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172 | ! ! There is convective precipitation |
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173 | |
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174 | enddo ! loop over npoints |
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175 | ! end of initializing the top layer |
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176 | |
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177 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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178 | |
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179 | ! working on the levels from top to surface |
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180 | do ilev=2,nlev |
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181 | do j=1,npoints |
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182 | flag_ls=0 |
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183 | flag_cv=0 |
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184 | |
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185 | if (ls_p_rate(j,ilev) .gt. 0.) then |
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186 | do ibox=1,ncol ! possibility ONE&TWO |
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187 | if ((frac_out(j,ibox,ilev) .eq. 1) .or. & |
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188 | ((prec_frac(j,ibox,ilev-1) .eq. 1) & |
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189 | .or. (prec_frac(j,ibox,ilev-1) .eq. 3))) then |
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190 | prec_frac(j,ibox,ilev) = 1 |
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191 | flag_ls=1 |
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192 | endif |
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193 | enddo ! loop over ncol |
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194 | if ((flag_ls .eq. 0) .and. (ilev .lt. nlev)) then ! possibility THREE |
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195 | do ibox=1,ncol |
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196 | if (frac_out(j,ibox,ilev+1) .eq. 1) then |
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197 | prec_frac(j,ibox,ilev) = 1 |
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198 | flag_ls=1 |
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199 | endif |
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200 | enddo ! loop over ncol |
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201 | endif |
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202 | if (flag_ls .eq. 0) then ! possibility Four |
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203 | do ibox=1,ncol |
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204 | if (frac_out_ls(j,ibox) .eq. 1) then |
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205 | prec_frac(j,ibox,ilev) = 1 |
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206 | flag_ls=1 |
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207 | endif |
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208 | enddo ! loop over ncol |
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209 | endif |
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210 | if (flag_ls .eq. 0) then ! possibility Five |
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211 | do ibox=1,ncol |
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212 | ! prec_frac(j,1:ncol,ilev) = 1 |
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213 | prec_frac(j,ibox,ilev) = 1 |
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214 | enddo ! loop over ncol |
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215 | endif |
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216 | endif ! There is large scale precipitation |
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217 | |
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218 | if (cv_p_rate(j,ilev) .gt. 0.) then |
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219 | do ibox=1,ncol ! possibility ONE&TWO |
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220 | if ((frac_out(j,ibox,ilev) .eq. 2) .or. & |
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221 | ((prec_frac(j,ibox,ilev-1) .eq. 2) & |
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222 | .or. (prec_frac(j,ibox,ilev-1) .eq. 3))) then |
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223 | if (prec_frac(j,ibox,ilev) .eq. 0) then |
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224 | prec_frac(j,ibox,ilev) = 2 |
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225 | else |
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226 | prec_frac(j,ibox,ilev) = 3 |
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227 | endif |
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228 | flag_cv=1 |
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229 | endif |
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230 | enddo ! loop over ncol |
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231 | if ((flag_cv .eq. 0) .and. (ilev .lt. nlev)) then ! possibility THREE |
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232 | do ibox=1,ncol |
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233 | if (frac_out(j,ibox,ilev+1) .eq. 2) then |
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234 | if (prec_frac(j,ibox,ilev) .eq. 0) then |
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235 | prec_frac(j,ibox,ilev) = 2 |
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236 | else |
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237 | prec_frac(j,ibox,ilev) = 3 |
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238 | endif |
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239 | flag_cv=1 |
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240 | endif |
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241 | enddo ! loop over ncol |
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242 | endif |
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243 | if (flag_cv .eq. 0) then ! possibility Four |
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244 | do ibox=1,ncol |
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245 | if (frac_out_cv(j,ibox) .eq. 1) then |
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246 | if (prec_frac(j,ibox,ilev) .eq. 0) then |
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247 | prec_frac(j,ibox,ilev) = 2 |
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248 | else |
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249 | prec_frac(j,ibox,ilev) = 3 |
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250 | endif |
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251 | flag_cv=1 |
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252 | endif |
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253 | enddo ! loop over ncol |
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254 | endif |
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255 | if (flag_cv .eq. 0) then ! possibility Five |
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256 | do ibox=1,cv_col |
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257 | if (prec_frac(j,ibox,ilev) .eq. 0) then |
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258 | prec_frac(j,ibox,ilev) = 2 |
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259 | else |
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260 | prec_frac(j,ibox,ilev) = 3 |
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261 | endif |
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262 | enddo !loop over cv_col |
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263 | endif |
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264 | endif ! There is convective precipitation |
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265 | |
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266 | enddo ! loop over npoints |
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267 | enddo ! loop over nlev |
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268 | |
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269 | end subroutine prec_scops |
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270 | |
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