1 | !OPTIONS XOPT(HSFUN) |
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2 | SUBROUTINE SWU & |
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3 | &( KIDIA, KFDIA , KLON , KLEV & |
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4 | &, PSCT , PCARDI, PCLDSW, PPMB , PPSOL, PRMU0, PTAVE, PWV & |
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5 | &, PAKI , PCLD , PCLEAR, PDSIG, PFACT, PRMU , PSEC , PUD & |
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6 | &) |
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7 | |
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8 | !**** *SWU* - SHORTWAVE RADIATION, ABSORBER AMOUNTS |
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9 | |
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10 | ! PURPOSE. |
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11 | ! -------- |
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12 | ! COMPUTES THE ABSORBER AMOUNTS USED IN SHORTWAVE RADIATION |
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13 | ! CALCULATIONS |
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14 | |
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15 | !** INTERFACE. |
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16 | ! ---------- |
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17 | ! *SWU* IS CALLED BY *SW* |
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18 | |
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19 | |
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20 | ! IMPLICIT ARGUMENTS : |
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21 | ! -------------------- |
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22 | |
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23 | ! ==== INPUTS === |
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24 | ! ==== OUTPUTS === |
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25 | |
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26 | ! METHOD. |
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27 | ! ------- |
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28 | |
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29 | ! 1. COMPUTES ABSORBER AMOUNTS WITH TEMPERATURE AND PRESSURE |
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30 | ! SCALING. |
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31 | |
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32 | ! EXTERNALS. |
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33 | ! ---------- |
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34 | |
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35 | ! *SWTT* |
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36 | |
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37 | ! REFERENCE. |
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38 | ! ---------- |
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39 | |
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40 | ! SEE RADIATION'S PART OF THE ECMWF RESEARCH DEPARTMENT |
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41 | ! DOCUMENTATION, AND FOUQUART AND BONNEL (1980) |
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42 | |
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43 | ! AUTHOR. |
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44 | ! ------- |
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45 | ! JEAN-JACQUES MORCRETTE *ECMWF* |
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46 | |
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47 | ! MODIFICATIONS. |
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48 | ! -------------- |
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49 | ! ORIGINAL : 89-07-14 |
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50 | |
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51 | ! ------------------------------------------------------------------ |
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52 | |
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53 | |
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54 | #include "tsmbkind.h" |
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55 | |
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56 | USE YOECLD , ONLY : REPSEC |
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57 | USE YOERAD , ONLY : NOVLP ,NSW |
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58 | USE YOERDU , ONLY : REPSCQ |
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59 | USE YOESW , ONLY : RPDH1 ,RPDU1 ,RPNH ,RPNU ,& |
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60 | &RTDH2O ,RTDUMG ,RTH2O ,RTUMG |
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61 | USE YOEOVLP , ONLY : RA1OVLP |
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62 | |
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63 | |
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64 | IMPLICIT NONE |
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65 | |
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66 | |
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67 | ! DUMMY INTEGER SCALARS |
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68 | INTEGER_M :: KFDIA |
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69 | INTEGER_M :: KIDIA |
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70 | INTEGER_M :: KKIND |
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71 | INTEGER_M :: KLEV |
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72 | INTEGER_M :: KLON |
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73 | |
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74 | ! DUMMY REAL SCALARS |
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75 | REAL_B :: PCARDI |
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76 | REAL_B :: PSCT |
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77 | |
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78 | |
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79 | |
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80 | ! ------------------------------------------------------------------ |
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81 | |
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82 | !* 0.1 ARGUMENTS |
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83 | ! --------- |
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84 | |
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85 | REAL_B :: PCLDSW(KLON,KLEV), PPMB(KLON,KLEV+1), PPSOL(KLON)& |
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86 | &, PRMU0(KLON) , PTAVE(KLON,KLEV) , PWV(KLON,KLEV) |
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87 | |
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88 | REAL_B :: PAKI(KLON,2,NSW)& |
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89 | &, PCLD(KLON,KLEV) , PCLEAR(KLON)& |
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90 | &, PDSIG(KLON,KLEV) , PFACT(KLON) , PRMU(KLON)& |
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91 | &, PSEC(KLON) , PUD(KLON,5,KLEV+1) |
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92 | |
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93 | INTEGER_M :: INUIR |
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94 | |
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95 | ! ------------------------------------------------------------------ |
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96 | |
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97 | !* 0.2 LOCAL ARRAYS |
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98 | ! ------------ |
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99 | |
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100 | INTEGER_M :: IIND(2) |
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101 | REAL_B :: ZC1J(KLON,KLEV+1),ZCLEAR(KLON),ZCLOUD(KLON)& |
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102 | &, ZN175(KLON), ZN190(KLON), ZO175(KLON)& |
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103 | &, ZO190(KLON), ZSIGN(KLON)& |
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104 | &, ZR(KLON,2) , ZSIGO(KLON), ZUD(KLON,2) |
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105 | |
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106 | ! LOCAL INTEGER SCALARS |
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107 | INTEGER_M :: JA, JK, JKL, JKLP1, JKP1, JL, JNU |
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108 | |
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109 | ! LOCAL REAL SCALARS |
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110 | REAL_B :: ZDSCO2, ZDSH2O, ZFPPW, ZRTH, ZRTU, ZWH2O, ZALPHA1 |
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111 | |
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112 | |
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113 | ! ------------------------------------------------------------------ |
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114 | |
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115 | !* 1. COMPUTES AMOUNTS OF ABSORBERS |
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116 | ! ----------------------------- |
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117 | |
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118 | |
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119 | IIND(1)=1 |
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120 | IIND(2)=2 |
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121 | |
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122 | |
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123 | !* 1.1 INITIALIZES QUANTITIES |
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124 | ! ---------------------- |
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125 | |
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126 | |
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127 | DO JL = KIDIA,KFDIA |
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128 | PUD(JL,1,KLEV+1)=_ZERO_ |
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129 | PUD(JL,2,KLEV+1)=_ZERO_ |
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130 | PUD(JL,3,KLEV+1)=_ZERO_ |
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131 | PUD(JL,4,KLEV+1)=_ZERO_ |
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132 | PUD(JL,5,KLEV+1)=_ZERO_ |
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133 | PFACT(JL)= PRMU0(JL) * PSCT |
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134 | !- already accounted for in RADINT |
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135 | ! PRMU(JL)=SQRT(1224.* PRMU0(JL) * PRMU0(JL) + 1.) / 35. |
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136 | PRMU(JL)=PRMU0(JL) |
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137 | ! Martin control |
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138 | ! PRINT*,'PRMU(',JL,')=',PRMU(JL) |
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139 | ! Martin modif to avoid cos(sza)=0 for LMDZ: |
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140 | IF (PRMU(JL) .LE. 1E-3) PRMU(JL) = 1E-3 |
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141 | PSEC(JL)=_ONE_/PRMU(JL) |
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142 | ZC1J(JL,KLEV+1)=_ZERO_ |
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143 | ENDDO |
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144 | |
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145 | !* 1.3 AMOUNTS OF ABSORBERS |
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146 | ! -------------------- |
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147 | |
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148 | |
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149 | DO JL= KIDIA,KFDIA |
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150 | ZUD(JL,1) = _ZERO_ |
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151 | ZUD(JL,2) = _ZERO_ |
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152 | ZO175(JL) = PPSOL(JL)** RPDU1 |
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153 | ZO190(JL) = PPSOL(JL)** RPDH1 |
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154 | ZSIGO(JL) = PPSOL(JL) |
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155 | ZCLEAR(JL)=_ONE_ |
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156 | ZCLOUD(JL)=_ZERO_ |
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157 | ENDDO |
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158 | |
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159 | DO JK = 1 , KLEV |
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160 | JKP1 = JK + 1 |
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161 | JKL = KLEV+1 - JK |
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162 | JKLP1 = JKL+1 |
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163 | DO JL = KIDIA,KFDIA |
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164 | ZRTH=(RTH2O/PTAVE(JL,JK))**RTDH2O |
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165 | ZRTU=(RTUMG/PTAVE(JL,JK))**RTDUMG |
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166 | ZWH2O = MAX (PWV(JL,JKL) , REPSCQ ) |
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167 | ZSIGN(JL) = 100._JPRB * PPMB(JL,JKP1) |
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168 | PDSIG(JL,JK) = (ZSIGO(JL) - ZSIGN(JL))/PPSOL(JL) |
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169 | ZN175(JL) = ZSIGN(JL) ** RPDU1 |
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170 | ZN190(JL) = ZSIGN(JL) ** RPDH1 |
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171 | ZDSCO2 = ZO175(JL) - ZN175(JL) |
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172 | ZDSH2O = ZO190(JL) - ZN190(JL) |
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173 | PUD(JL,1,JK) = RPNH * ZDSH2O * ZWH2O * ZRTH |
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174 | PUD(JL,2,JK) = RPNU * ZDSCO2 * PCARDI * ZRTU |
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175 | ZFPPW=1.6078_JPRB*ZWH2O/(_ONE_+0.608_JPRB*ZWH2O) |
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176 | PUD(JL,4,JK)=PUD(JL,1,JK)*ZFPPW |
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177 | PUD(JL,5,JK)=PUD(JL,1,JK)*(_ONE_-ZFPPW) |
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178 | ZUD(JL,1) = ZUD(JL,1) + PUD(JL,1,JK) |
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179 | ZUD(JL,2) = ZUD(JL,2) + PUD(JL,2,JK) |
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180 | ZSIGO(JL) = ZSIGN(JL) |
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181 | ZO175(JL) = ZN175(JL) |
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182 | ZO190(JL) = ZN190(JL) |
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183 | |
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184 | IF (NOVLP == 1) THEN |
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185 | ZCLEAR(JL)=ZCLEAR(JL)& |
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186 | &*(_ONE_-MAX(PCLDSW(JL,JKL),ZCLOUD(JL)))& |
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187 | &/(_ONE_-MIN(ZCLOUD(JL),_ONE_-REPSEC)) |
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188 | ZC1J(JL,JKL)= _ONE_ - ZCLEAR(JL) |
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189 | ZCLOUD(JL) = PCLDSW(JL,JKL) |
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190 | ELSEIF (NOVLP == 2) THEN |
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191 | ZCLOUD(JL) = MAX(PCLDSW(JL,JKL),ZCLOUD(JL)) |
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192 | ZC1J(JL,JKL) = ZCLOUD(JL) |
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193 | ELSEIF (NOVLP == 3) THEN |
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194 | ZCLEAR(JL) = ZCLEAR(JL)*(_ONE_-PCLDSW(JL,JKL)) |
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195 | ZCLOUD(JL) = _ONE_ - ZCLEAR(JL) |
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196 | ZC1J(JL,JKL) = ZCLOUD(JL) |
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197 | ELSEIF (NOVLP == 4) THEN |
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198 | !** Hogan & Illingworth (2001) |
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199 | ZALPHA1=RA1OVLP(KLEV+1-JK) |
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200 | ZCLEAR(JL)=ZCLEAR(JL)*( & |
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201 | & ZALPHA1*(_ONE_-MAX(PCLDSW(JL,JKL),ZCLOUD(JL))) & |
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202 | & /(_ONE_-MIN(ZCLOUD(JL),_ONE_-REPSEC)) & |
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203 | & +(_ONE_-ZALPHA1)*(_ONE_-PCLDSW(JL,JKL)) ) |
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204 | ZC1J(JL,JKL) = _ONE_ - ZCLEAR(JL) |
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205 | ZCLOUD(JL) = PCLDSW(JL,JKL) |
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206 | ENDIF |
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207 | ENDDO |
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208 | ENDDO |
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209 | DO JL=KIDIA,KFDIA |
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210 | PCLEAR(JL)=_ONE_-ZC1J(JL,1) |
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211 | ENDDO |
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212 | DO JK=1,KLEV |
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213 | DO JL=KIDIA,KFDIA |
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214 | IF (PCLEAR(JL) < _ONE_) THEN |
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215 | PCLD(JL,JK)=PCLDSW(JL,JK)/(_ONE_-PCLEAR(JL)) |
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216 | ELSE |
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217 | PCLD(JL,JK)=_ZERO_ |
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218 | ENDIF |
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219 | ENDDO |
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220 | ENDDO |
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221 | |
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222 | |
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223 | !* 1.4 COMPUTES CLEAR-SKY GREY ABSORPTION COEFFICIENTS |
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224 | ! ----------------------------------------------- |
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225 | |
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226 | |
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227 | DO JA = 1,2 |
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228 | DO JL = KIDIA,KFDIA |
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229 | ZUD(JL,JA) = ZUD(JL,JA) * PSEC(JL) |
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230 | ENDDO |
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231 | ENDDO |
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232 | |
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233 | IF (NSW.LE.4) THEN |
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234 | INUIR=2 |
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235 | ELSE IF (NSW.EQ.6) THEN |
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236 | INUIR=4 |
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237 | END IF |
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238 | |
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239 | |
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240 | DO JNU= INUIR,NSW |
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241 | |
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242 | KKIND=2 |
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243 | CALL SWTT1 ( KIDIA,KFDIA,KLON, JNU, KKIND, IIND & |
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244 | &, ZUD & |
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245 | &, ZR ) |
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246 | |
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247 | DO JA = 1,2 |
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248 | DO JL = KIDIA,KFDIA |
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249 | PAKI(JL,JA,JNU) = -LOG( ZR(JL,JA) ) / ZUD(JL,JA) |
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250 | ENDDO |
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251 | ENDDO |
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252 | ENDDO |
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253 | |
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254 | |
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255 | ! ------------------------------------------------------------------ |
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256 | |
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257 | RETURN |
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258 | END SUBROUTINE SWU |
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