1 | SUBROUTINE inscav_spl(pdtime, it, masse, henry, kk, qliq, & |
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2 | flxr, flxs, zrho, zdz, t, x, & |
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3 | his_dh) |
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4 | USE dimphy |
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5 | IMPLICIT NONE |
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6 | !===================================================================== |
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7 | ! Objet : depot humide de traceurs |
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8 | ! Date : mars 1998 |
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9 | ! Auteur: O. Boucher (LOA) |
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10 | !===================================================================== |
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11 | ! |
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12 | INCLUDE "dimensions.h" |
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13 | INCLUDE "chem.h" |
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14 | INCLUDE "YOMCST.h" |
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15 | INCLUDE "YOECUMF.h" |
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16 | ! |
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17 | INTEGER :: it |
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18 | REAL :: pdtime ! pas de temps (s) |
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19 | REAL :: masse ! molar mass (except for BC/OM/IF/DUST=Nav) |
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20 | REAL :: henry ! constante de Henry en mol/l/atm |
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21 | REAL :: kk ! coefficient de dependence en T (K) |
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22 | REAL :: qliq ! contenu en eau liquide dans le nuage (kg/kg) |
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23 | ! REAL flxr(klon,klev+1) ! flux precipitant de pluie |
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24 | ! REAL flxs(klon,klev+1) ! flux precipitant de neige |
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25 | REAL :: flxr(klon, klev) ! flux precipitant de pluie ! Titane |
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26 | REAL :: flxs(klon, klev) ! flux precipitant de neige ! Titane |
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27 | REAL :: flxr_aux(klon, klev + 1) |
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28 | REAL :: flxs_aux(klon, klev + 1) |
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29 | REAL :: zrho(klon, klev) |
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30 | REAL :: zdz(klon, klev) |
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31 | REAL :: t(klon, klev) |
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32 | REAL :: x(klon, klev) ! q de traceur |
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33 | REAL :: his_dh(klon) ! tendance de traceur integre verticalement |
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34 | ! |
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35 | !--variables locales |
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36 | INTEGER :: i, k |
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37 | ! |
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38 | REAL :: dx ! tendance de traceur |
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39 | REAL :: f_a !--rapport de la phase aqueuse a la phase gazeuse |
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40 | REAL :: beta !--taux de conversion de l'eau en pluie |
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41 | REAL :: henry_t !--constante de Henry a T t (mol/l/atm) |
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42 | REAL :: scav(klon, klev) !--fraction aqueuse du constituant |
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43 | REAL :: K1, K2, ph, frac |
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44 | REAL :: frac_gas, frac_aer !-cste pour la reevaporation |
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45 | PARAMETER (ph = 5., frac_gas = 1.0, frac_aer = 0.5) |
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46 | !---cste de dissolution pour le depot humide |
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47 | REAL :: frac_fine_scav, frac_coar_scav |
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48 | !---added by nhl |
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49 | REAL :: aux_cte |
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50 | |
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51 | PARAMETER (frac_fine_scav = 0.7) |
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52 | PARAMETER (frac_coar_scav = 0.7) |
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53 | |
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54 | !--101.325 m3/l x Pa/atm |
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55 | !--R Pa.m3/mol/K |
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56 | ! |
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57 | !------------------------------------------ |
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58 | ! |
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59 | !nhl IF (it.EQ.2.OR.it.EQ.3) THEN !--aerosol ! AS IT WAS FIRST |
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60 | IF (it==2.OR.it==3.OR.it==4) THEN !--aerosol |
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61 | frac = frac_aer |
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62 | ELSE !--gas |
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63 | frac = frac_gas |
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64 | ENDIF |
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65 | ! |
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66 | IF (it==1) THEN |
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67 | DO k = 1, klev |
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68 | DO i = 1, klon |
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69 | henry_t = henry * exp(-kk * (1. / 298. - 1. / t(i, k))) !--mol/l/atm |
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70 | K1 = 1.2e-2 * exp(-2010 * (1 / 298. - 1 / t(i, k))) |
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71 | K2 = 6.6e-8 * exp(-1510 * (1 / 298. - 1 / t(i, k))) |
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72 | henry_t = henry_t * (1 + K1 / 10.**(-ph) + K1 * K2 / (10.**(-ph))**2) |
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73 | f_a = henry_t / 101.325 * R * t(i, k) * qliq * zrho(i, k) / rho_water |
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74 | scav(i, k) = f_a / (1. + f_a) |
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75 | ENDDO |
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76 | ENDDO |
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77 | ELSEIF (it==2) THEN |
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78 | DO k = 1, klev |
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79 | DO i = 1, klon |
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80 | scav(i, k) = frac_fine_scav |
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81 | ENDDO |
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82 | ENDDO |
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83 | ELSEIF (it==3) THEN |
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84 | DO k = 1, klev |
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85 | DO i = 1, klon |
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86 | scav(i, k) = frac_coar_scav |
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87 | ENDDO |
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88 | ENDDO |
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89 | ELSEIF (it==4) THEN |
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90 | DO k = 1, klev |
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91 | DO i = 1, klon |
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92 | scav(i, k) = frac_coar_scav |
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93 | ENDDO |
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94 | ENDDO |
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95 | ELSE |
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96 | PRINT *, 'it non pris en compte' |
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97 | STOP |
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98 | ENDIF |
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99 | ! |
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100 | ! NHL |
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101 | ! Auxiliary variables defined to deal with the fact that precipitation |
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102 | ! fluxes are defined on klev levels only. |
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103 | ! NHL |
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104 | |
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105 | flxr_aux(:, klev + 1) = 0.0 |
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106 | flxs_aux(:, klev + 1) = 0.0 |
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107 | flxr_aux(:, 1:klev) = flxr(:, :) |
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108 | flxs_aux(:, 1:klev) = flxs(:, :) |
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109 | DO k = klev, 1, -1 |
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110 | DO i = 1, klon |
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111 | !--scavenging |
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112 | beta = flxr_aux(i, k) - flxr_aux(i, k + 1) + flxs_aux(i, k) - flxs_aux(i, k + 1) |
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113 | beta = beta / zdz(i, k) / qliq / zrho(i, k) |
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114 | beta = MAX(0.0, beta) |
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115 | dx = x(i, k) * (exp(-scav(i, k) * beta * pdtime) - 1.) |
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116 | x(i, k) = x(i, k) + dx |
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117 | his_dh(i) = his_dh(i) - dx / RNAVO * & |
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118 | masse * 1.e3 * 1.e6 * zdz(i, k) / pdtime !--mgS/m2/s |
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119 | !--reevaporation |
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120 | beta = flxr_aux(i, k) - flxr_aux(i, k + 1) + flxs_aux(i, k) - flxs_aux(i, k + 1) |
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121 | IF (beta<0.) beta = beta / (flxr_aux(i, k + 1) + flxs_aux(i, k + 1)) |
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122 | IF (flxr_aux(i, k) + flxs_aux(i, k)==0) THEN !--reevaporation totale |
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123 | beta = MIN(MAX(0.0, -beta), 1.0) |
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124 | ELSE !--reevaporation non totale pour aerosols |
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125 | ! !print *,'FRAC USED IN INSCAV_SPL' |
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126 | beta = MIN(MAX(0.0, -beta) * frac, 1.0) |
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127 | ENDIF |
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128 | dx = beta * his_dh(i) * RNAVO / masse / 1.e3 / 1.e6 / zdz(i, k) * pdtime !ORIG LINE |
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129 | ! funny line for TL/AD |
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130 | ! AD test works without (x) and for xd = dxd*1.e5 : 2.79051851638 times the 0. |
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131 | ! AD test does not work with the line : 754592404.083 times the 0. |
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132 | ! problem seems to be linked to the largest dx wrt x |
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133 | ! x(i, k) = x(i, k) + dx |
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134 | ! x(i, k) = x(i, k) + dx ! THIS LINE WAS COMMENTED OUT ORIGINALY !nhl |
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135 | his_dh(i) = (1. - beta) * his_dh(i) |
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136 | ENDDO |
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137 | ENDDO |
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138 | ! |
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139 | |
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140 | END SUBROUTINE inscav_spl |
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