1 | !$Id: mknoprod.F90 157 2010-01-18 14:21:59Z acosce $ |
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2 | !! ========================================================================= |
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3 | !! INCA - INteraction with Chemistry and Aerosols |
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4 | !! |
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5 | !! Copyright Laboratoire des Sciences du Climat et de l'Environnement (LSCE) |
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6 | !! Unite mixte CEA-CNRS-UVSQ |
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7 | !! |
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8 | !! Contributors to this INCA subroutine: |
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9 | !! |
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10 | !! Didier Hauglustaine, LSCE, hauglustaine@cea.fr |
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11 | !! Line Jourdain, SA |
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12 | !! |
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13 | !! Anne Cozic, LSCE, anne.cozic@cea.fr |
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14 | !! Yann Meurdesoif, LSCE, yann.meurdesoif@cea.fr |
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15 | !! |
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16 | !! This software is a computer program whose purpose is to simulate the |
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17 | !! atmospheric gas phase and aerosol composition. The model is designed to be |
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18 | !! used within a transport model or a general circulation model. This version |
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19 | !! of INCA was designed to be coupled to the LMDz GCM. LMDz-INCA accounts |
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20 | !! for emissions, transport (resolved and sub-grid scale), photochemical |
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21 | !! transformations, and scavenging (dry deposition and washout) of chemical |
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22 | !! species and aerosols interactively in the GCM. Several versions of the INCA |
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23 | !! model are currently used depending on the envisaged applications with the |
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24 | !! chemistry-climate model. |
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25 | !! |
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26 | !! This software is governed by the CeCILL license under French law and |
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27 | !! abiding by the rules of distribution of free software. You can use, |
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28 | !! modify and/ or redistribute the software under the terms of the CeCILL |
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29 | !! license as circulated by CEA, CNRS and INRIA at the following URL |
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30 | !! "http://www.cecill.info". |
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31 | !! |
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32 | !! As a counterpart to the access to the source code and rights to copy, |
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33 | !! modify and redistribute granted by the license, users are provided only |
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34 | !! with a limited warranty and the software's author, the holder of the |
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35 | !! economic rights, and the successive licensors have only limited |
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36 | !! liability. |
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37 | !! |
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38 | !! In this respect, the user's attention is drawn to the risks associated |
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39 | !! with loading, using, modifying and/or developing or reproducing the |
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40 | !! software by the user in light of its specific status of free software, |
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41 | !! that may mean that it is complicated to manipulate, and that also |
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42 | !! therefore means that it is reserved for developers and experienced |
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43 | !! professionals having in-depth computer knowledge. Users are therefore |
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44 | !! encouraged to load and test the software's suitability as regards their |
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45 | !! requirements in conditions enabling the security of their systems and/or |
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46 | !! data to be ensured and, more generally, to use and operate it in the |
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47 | !! same conditions as regards security. |
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48 | !! |
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49 | !! The fact that you are presently reading this means that you have had |
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50 | !! knowledge of the CeCILL license and that you accept its terms. |
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51 | !! ========================================================================= |
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52 | |
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53 | #include <inca_define.h> |
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54 | SUBROUTINE MKNOPROD(oro, & |
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55 | lat, & |
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56 | lon, & |
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57 | area, & |
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58 | pmid, & |
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59 | zmid, & |
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60 | temp, & |
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61 | ctop, & |
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62 | cbot, & |
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63 | nx, & |
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64 | ny) |
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65 | !---------------------------------------------------------------------- |
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66 | ! ... NOx from lightning |
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67 | ! Line Jourdain, SA, 2001. |
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68 | ! Modified, Didier Hauglustaine, IPSL, 08-2001. |
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69 | !-------------------------------------------------------- |
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70 | USE LIGHTNING |
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71 | USE CHEM_CONS |
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72 | USE CHEM_MODS |
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73 | USE SPECIES_NAMES |
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74 | USE INCA_DIM |
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75 | |
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76 | IMPLICIT NONE |
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77 | |
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78 | !-------------------------------------------------------- |
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79 | ! ... Dummy arguments |
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80 | !-------------------------------------------------------- |
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81 | INTEGER, INTENT(in) :: ctop(PLON) !convective clouds top |
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82 | INTEGER, INTENT(in) :: cbot(PLON) !convective clouds bot |
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83 | INTEGER, INTENT(in) :: nx, ny |
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84 | REAL, INTENT(in) :: oro(PLON) !land-sea mask |
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85 | REAL, INTENT(in) :: area(PLON) !Grid area (km2) |
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86 | REAL, INTENT(in) :: lat(PLON) !Not used |
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87 | REAL, INTENT(in) :: pmid(PLON,PLEV) !Pressure (Pa) |
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88 | REAL, INTENT(in) :: temp(PLON,PLEV) !Temperature |
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89 | REAL, INTENT(in) :: lon(PLON) !Not used |
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90 | REAL, INTENT(in) :: zmid(PLON,PLEV) !Altitude (m) |
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91 | |
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92 | !-------------------------------------------------------- |
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93 | ! ... Local variables |
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94 | !-------------------------------------------------------- |
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95 | INTEGER :: i, k, l, lp |
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96 | INTEGER :: lmax, lmin |
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97 | |
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98 | REAL, PARAMETER :: secpyr = dayspy * 8.64e4 |
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99 | REAL, PARAMETER :: ap=0.021 |
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100 | REAL, PARAMETER :: bp=-0.648 |
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101 | REAL, PARAMETER :: cp=7.493 |
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102 | REAL, PARAMETER :: dp=-36.54 |
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103 | REAL, PARAMETER :: ep=63.09 |
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104 | REAL, PARAMETER :: zero = 1.e-20 |
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105 | |
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106 | REAL :: dx, dy |
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107 | REAL :: calibration |
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108 | REAL :: source |
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109 | REAL :: ziso0(PLON) |
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110 | REAL :: fic(PLON), fcg(PLON) |
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111 | REAL :: z(PLON) |
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112 | REAL :: a(PLON), b(PLON) |
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113 | REAL :: globoprod_no(PLON) |
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114 | REAL :: xprod_no(PLON,PLEV) |
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115 | REAL :: no_col(PLON) |
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116 | REAL :: factor(PLON) |
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117 | REAL :: scal(PLON) |
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118 | REAL :: altp(PLON,zdim) |
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119 | REAL :: atc(PLON,zdim-1), atm(PLON,zdim-1), amc(PLON,zdim-1) |
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120 | REAL :: btc(PLON,zdim-1), btm(PLON,zdim-1), bmc(PLON,zdim-1) |
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121 | REAL :: coeff_tcp(PLON,PLEV), coeff_mcp(PLON,PLEV), coeff_tmp(PLON,PLEV) |
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122 | REAL :: somcoeff1(PLON),somcoeff2(PLON),somcoeff3(PLON) |
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123 | REAL :: zinterf(PLON,PLEVP) |
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124 | REAL :: deltaz(PLON,PLEV) |
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125 | REAL :: zmidkm(PLON,PLEV) |
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126 | |
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127 | zmidkm = zmid*1.e-3 |
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128 | |
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129 | ! ... Zero all variables for this time-step |
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130 | ztop=0. |
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131 | flash=0. |
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132 | ziso0=0. |
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133 | dcold=0. |
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134 | pcg=0. |
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135 | fcg=0. |
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136 | fic=0. |
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137 | globoprod_no=0. |
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138 | xprod_no = 0. |
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139 | factor=0. |
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140 | scal = 1.0 |
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141 | |
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142 | ! ... Ensure cloud presence |
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143 | DO i=1,PLON |
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144 | IF (pmid(i,ctop(i)) < pmid(i,cbot(i))) THEN |
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145 | ztop(i)=zmidkm(i,ctop(i)) |
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146 | ENDIF |
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147 | ENDDO |
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148 | |
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149 | ! ... Flashes per sec (Price and Rind, 92) |
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150 | DO i=1,PLON |
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151 | IF (ztop(i) > 4.) THEN |
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152 | flash(i)=3.44e-5*ztop(i)**4.90 *oro(i) + 6.40e-4*ztop(i)**1.73 *(1.-oro(i)) |
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153 | ENDIF |
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154 | ENDDO |
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155 | |
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156 | ! ... Two calibrations applied: |
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157 | ! 1. To account for cloud height averaging (see Price and Rind, 1994) |
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158 | ! 2. To ensure 5 TgN in global and annual mean. |
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159 | |
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160 | dx = 2.*pi/FLOAT(nx)*r2d |
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161 | dy = pi/FLOAT(ny)*r2d |
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162 | |
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163 | calibration = 9.7241e-1*EXP(4.8203e-2*dx*dy) |
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164 | flash(:) = 2. * calibration * flash(:) !KE |
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165 | |
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166 | ! ... Find 0 celcius isotherm |
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167 | DO i=1,PLON |
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168 | DO l=1,PLEV-1 |
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169 | IF ( pmid(i,l) > 2.e4 ) THEN |
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170 | IF ( (temp(i,l) > 273.15) .AND. (temp(i,l+1) < 273.15) ) THEN |
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171 | a(i)=(temp(i,l+1)-temp(i,l))/(zmidkm(i,l+1)-zmidkm(i,l)) |
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172 | b(i)=temp(i,l)-a(i)*zmidkm(i,l) |
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173 | ziso0(i)=(273.15-b(i))/a(i) |
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174 | ENDIF |
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175 | ENDIF |
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176 | ENDDO |
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177 | ENDDO |
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178 | |
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179 | ! ... Intracloud and cloud-to-ground lightning |
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180 | |
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181 | DO i=1,PLON |
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182 | |
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183 | IF (ziso0(i) < ztop(i)) THEN |
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184 | |
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185 | dcold(i)=ztop(i)-ziso0(i) |
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186 | |
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187 | IF ( (dcold(i) > 5.5) .AND. (dcold(i) < 14.) ) THEN |
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188 | z(i)=(ap*dcold(i)**4+bp*dcold(i)**3+cp*dcold(i)**2+dp*dcold(i)+ep) |
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189 | pcg(i)=1./(z(i)+1.) |
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190 | ELSE IF (dcold(i) <= 5.5) THEN |
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191 | pcg(i)=0. |
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192 | ELSE IF (dcold(i) >= 14.) THEN |
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193 | pcg(i)=2.e-2 |
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194 | ENDIF |
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195 | |
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196 | fcg(i) = pcg(i)*flash(i) |
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197 | fic(i) = (1.-pcg(i))*flash(i) |
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198 | |
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199 | ENDIF |
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200 | |
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201 | ENDDO |
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202 | |
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203 | ! ... Change units to fl/s/m2 DH. |
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204 | |
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205 | flash(:) = flash(:)/60./area(:) |
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206 | flpcg(:) = fcg(:)/60./area(:) |
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207 | |
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208 | ! ... Column integrated NO production |
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209 | globoprod_no(:) = 6.7e25 * (10.*fcg(:)+fic(:)) /60./area(:) |
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210 | |
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211 | ! ... Pickering et al. (1998) vertical distribution |
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212 | DO i=1,PLON |
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213 | xprod_no(i,1:ctop(i))=1. |
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214 | ENDDO |
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215 | |
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216 | zinterf(:,1)=0. |
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217 | zinterf(:,2)=2.*zmidkm(:,1) |
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218 | DO l=2,PLEV |
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219 | zinterf(:,l+1)=zinterf(:,l)+2.*(zmidkm(:,l)-zinterf(:,l)) |
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220 | ENDDO |
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221 | |
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222 | DO l=1,PLEV |
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223 | deltaz(:,l)=(zinterf(:,l+1)-zinterf(:,l))*1.e3 |
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224 | ENDDO |
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225 | |
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226 | |
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227 | DO i=1,PLON |
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228 | IF (flash(i) > zero) THEN |
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229 | |
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230 | IF ( ABS(lat(i)) >= 30.) THEN |
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231 | scal(i)=ztop(i)/14.5 |
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232 | ELSE |
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233 | scal(i)=ztop(i)/16. |
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234 | ENDIF |
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235 | |
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236 | ENDIF |
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237 | ENDDO |
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238 | |
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239 | DO l=1,zdim |
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240 | altp(:,l)=alt(l)*scal(:) |
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241 | ENDDO |
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242 | |
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243 | DO i=1,PLON |
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244 | DO l=1,zdim-1 |
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245 | |
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246 | IF (scal(i) > zero) THEN |
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247 | atc(i,l)=(coeff_tc(l+1)-coeff_tc(l))/(altp(i,l+1)-altp(i,l)) |
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248 | btc(i,l)=coeff_tc(l)-atc(i,l)*altp(i,l) |
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249 | atm(i,l)=(coeff_tm(l+1)-coeff_tm(l))/(altp(i,l+1)-altp(i,l)) |
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250 | btm(i,l)=coeff_tm(l)-atm(i,l)*altp(i,l) |
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251 | amc(i,l)=(coeff_mc(l+1)-coeff_mc(l))/(altp(i,l+1)-altp(i,l)) |
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252 | bmc(i,l)=coeff_mc(l)-amc(i,l)*altp(i,l) |
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253 | ENDIF |
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254 | |
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255 | ENDDO |
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256 | ENDDO |
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257 | |
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258 | coeff_mcp=0. |
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259 | coeff_tmp=0. |
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260 | coeff_tcp=0. |
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261 | |
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262 | DO i=1,PLON |
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263 | DO lp=1,zdim-1 |
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264 | DO l=1,ctop(i) |
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265 | |
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266 | IF (flash(i) > zero) THEN |
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267 | |
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268 | IF (zmidkm(i,l) <= altp(i,1)) THEN |
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269 | coeff_tcp(i,l)=coeff_tc(1) |
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270 | coeff_tmp(i,l)=coeff_tm(1) |
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271 | coeff_mcp(i,l)=coeff_mc(1) |
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272 | ENDIF |
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273 | |
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274 | IF ((zmidkm(i,l) <= altp(i,lp+1)) .AND. (zmidkm(i,l) >= altp(i,lp))) THEN |
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275 | coeff_tcp(i,l)=atc(i,lp)*zmidkm(i,l)+btc(i,lp) |
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276 | coeff_tmp(i,l)=atm(i,lp)*zmidkm(i,l)+btm(i,lp) |
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277 | coeff_mcp(i,l)=amc(i,lp)*zmidkm(i,l)+bmc(i,lp) |
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278 | ENDIF |
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279 | ENDIF |
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280 | |
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281 | ENDDO |
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282 | ENDDO |
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283 | ENDDO |
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284 | |
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285 | somcoeff1=0. |
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286 | somcoeff2=0. |
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287 | somcoeff3=0. |
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288 | |
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289 | DO i=1,PLON |
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290 | DO l=1,ctop(i) |
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291 | somcoeff1(i)=somcoeff1(i)+coeff_tcp(i,l)*deltaz(i,l) |
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292 | somcoeff2(i)=somcoeff2(i)+coeff_tmp(i,l)*deltaz(i,l) |
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293 | somcoeff3(i)=somcoeff3(i)+coeff_mcp(i,l)*deltaz(i,l) |
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294 | ENDDO |
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295 | ENDDO |
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296 | |
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297 | DO i=1,PLON |
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298 | DO l=1,ctop(i) |
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299 | |
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300 | IF (somcoeff1(i) > zero) THEN |
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301 | coeff_tcp(i,l)=coeff_tcp(i,l)/somcoeff1(i)*1.e2 |
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302 | ENDIF |
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303 | |
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304 | IF (somcoeff2(i) > zero) THEN |
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305 | coeff_tmp(i,l)=coeff_tmp(i,l)/somcoeff2(i)*1.e2 |
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306 | ENDIF |
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307 | |
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308 | IF (somcoeff3(i) > zero) THEN |
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309 | coeff_mcp(i,l)=coeff_mcp(i,l)/somcoeff3(i)*1.e2 |
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310 | ENDIF |
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311 | |
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312 | ENDDO |
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313 | ENDDO |
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314 | |
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315 | DO i=1,PLON |
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316 | DO l=1,ctop(i) |
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317 | IF (flash(i) > zero) THEN |
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318 | IF ( ABS(lat(i)) <= 30. ) THEN |
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319 | |
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320 | xprod_no(i,l)=coeff_tcp(i,l)*0.01 * oro(i) + coeff_tmp(i,l)*0.01 * (1.-oro(i)) |
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321 | ELSE |
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322 | |
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323 | xprod_no(i,l)=coeff_mcp(i,l)*0.01 |
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324 | ENDIF |
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325 | ENDIF |
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326 | ENDDO |
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327 | ENDDO |
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328 | |
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329 | no_col=0. |
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330 | DO i=1,PLON |
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331 | lmax=ctop(i) |
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332 | DO l=1,lmax |
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333 | no_col(i) = no_col(i) + xprod_no(i,l) * deltaz(i,l) * 1.e6 |
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334 | ENDDO |
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335 | ENDDO |
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336 | |
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337 | prod_light=0. |
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338 | factor=0. |
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339 | DO i=1,PLON |
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340 | lmax=ctop(i) |
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341 | IF (no_col(i) /= 0.) THEN |
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342 | factor(i) = globoprod_no(i) / no_col(i) |
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343 | ENDIF |
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344 | DO l=1,lmax |
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345 | prod_light(i,l) = xprod_no(i,l) * factor(i) |
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346 | ENDDO |
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347 | ENDDO |
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348 | |
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349 | source = 0. |
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350 | DO i=1,PLON |
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351 | DO l=1,PLEV |
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352 | source = source + prod_light(i,l)*area(i)*deltaz(i,l)*1.e6 |
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353 | ENDDO |
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354 | ENDDO |
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355 | source = source /6.02e23 *14. *secpyr *1.e-12 |
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356 | |
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357 | !Integrated lightning NOx production (should be in kg/m2/s since prod_light is in molec/cm3/s) |
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358 | DO i=1,PLON |
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359 | DO l=1,PLEV |
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360 | prod_light_col(i) = prod_light_col(i) + prod_light(i,l)*1.e6*deltaz(i,l)/6.02e23*14.*1.e-3 |
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361 | ENDDO |
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362 | ENDDO |
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363 | |
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364 | END SUBROUTINE MKNOPROD |
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365 | |
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