1 | ! |
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2 | ! $Id: aeropt.F 1299 2010-01-20 14:27:21Z jghattas $ |
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3 | ! |
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4 | SUBROUTINE aeropt(pplay, paprs, t_seri, msulfate, RHcl, |
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5 | . tau_ae, piz_ae, cg_ae, ai ) |
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6 | c |
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7 | USE dimphy |
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8 | IMPLICIT none |
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9 | c |
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10 | c |
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11 | c |
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12 | cym#include "dimensions.h" |
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13 | cym#include "dimphy.h" |
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14 | #include "YOMCST.h" |
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15 | c |
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16 | c Arguments: |
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17 | c |
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18 | REAL, INTENT(in) :: paprs(klon,klev+1) |
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19 | REAL, INTENT(in) :: pplay(klon,klev), t_seri(klon,klev) |
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20 | REAL, INTENT(in) :: msulfate(klon,klev) ! masse sulfate ug SO4/m3 [ug/m^3] |
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21 | REAL, INTENT(in) :: RHcl(klon,klev) ! humidite relative ciel clair |
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22 | REAL, INTENT(out) :: tau_ae(klon,klev,2) ! epaisseur optique aerosol |
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23 | REAL, INTENT(out) :: piz_ae(klon,klev,2) ! single scattering albedo aerosol |
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24 | REAL, INTENT(out) :: cg_ae(klon,klev,2) ! asymmetry parameter aerosol |
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25 | REAL, INTENT(out) :: ai(klon) ! POLDER aerosol index |
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26 | c |
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27 | c Local |
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28 | c |
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29 | INTEGER i, k, inu |
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30 | INTEGER RH_num, nbre_RH |
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31 | PARAMETER (nbre_RH=12) |
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32 | REAL RH_tab(nbre_RH) |
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33 | REAL RH_MAX, DELTA, rh |
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34 | PARAMETER (RH_MAX=95.) |
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35 | DATA RH_tab/0.,10.,20.,30.,40.,50.,60.,70.,80.,85.,90.,95./ |
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36 | REAL zrho, zdz |
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37 | REAL taue670(klon) ! epaisseur optique aerosol absorption 550 nm |
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38 | REAL taue865(klon) ! epaisseur optique aerosol extinction 865 nm |
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39 | REAL alpha_aer_sulfate(nbre_RH,5) !--unit m2/g SO4 |
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40 | REAL alphasulfate |
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41 | |
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42 | CHARACTER (LEN=20) :: modname='aeropt' |
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43 | CHARACTER (LEN=80) :: abort_message |
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44 | |
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45 | c |
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46 | c Proprietes optiques |
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47 | c |
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48 | REAL alpha_aer(nbre_RH,2) !--unit m2/g SO4 |
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49 | REAL cg_aer(nbre_RH,2) |
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50 | DATA alpha_aer/.500130E+01, .500130E+01, .500130E+01, |
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51 | . .500130E+01, .500130E+01, .616710E+01, |
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52 | . .826850E+01, .107687E+02, .136976E+02, |
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53 | . .162972E+02, .211690E+02, .354833E+02, |
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54 | . .139460E+01, .139460E+01, .139460E+01, |
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55 | . .139460E+01, .139460E+01, .173910E+01, |
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56 | . .244380E+01, .332320E+01, .440120E+01, |
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57 | . .539570E+01, .734580E+01, .136038E+02 / |
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58 | DATA cg_aer/.619800E+00, .619800E+00, .619800E+00, |
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59 | . .619800E+00, .619800E+00, .662700E+00, |
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60 | . .682100E+00, .698500E+00, .712500E+00, |
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61 | . .721800E+00, .734600E+00, .755800E+00, |
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62 | . .545600E+00, .545600E+00, .545600E+00, |
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63 | . .545600E+00, .545600E+00, .583700E+00, |
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64 | . .607100E+00, .627700E+00, .645800E+00, |
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65 | . .658400E+00, .676500E+00, .708500E+00 / |
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66 | DATA alpha_aer_sulfate/ |
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67 | . 4.910,4.910,4.910,4.910,6.547,7.373, |
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68 | . 8.373,9.788,12.167,14.256,17.924,28.433, |
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69 | . 1.453,1.453,1.453,1.453,2.003,2.321, |
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70 | . 2.711,3.282,4.287,5.210,6.914,12.305, |
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71 | . 4.308,4.308,4.308,4.308,5.753,6.521, |
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72 | . 7.449,8.772,11.014,12.999,16.518,26.772, |
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73 | . 3.265,3.265,3.265,3.265,4.388,5.016, |
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74 | . 5.775,6.868,8.745,10.429,13.457,22.538, |
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75 | . 2.116,2.116,2.116,2.116,2.882,3.330, |
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76 | . 3.876,4.670,6.059,7.327,9.650,16.883/ |
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77 | c |
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78 | DO i=1, klon |
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79 | taue670(i)=0.0 |
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80 | taue865(i)=0.0 |
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81 | ENDDO |
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82 | c |
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83 | DO k=1, klev |
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84 | DO i=1, klon |
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85 | if (t_seri(i,k).eq.0) write (*,*) 'aeropt T ',i,k,t_seri(i,k) |
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86 | if (pplay(i,k).eq.0) write (*,*) 'aeropt p ',i,k,pplay(i,k) |
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87 | zrho=pplay(i,k)/t_seri(i,k)/RD ! kg/m3 |
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88 | zdz=(paprs(i,k)-paprs(i,k+1))/zrho/RG ! m |
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89 | rh=MIN(RHcl(i,k)*100.,RH_MAX) |
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90 | RH_num = INT( rh/10. + 1.) |
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91 | IF (rh.LT.0.) THEN |
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92 | abort_message = 'aeropt: RH < 0 not possible' |
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93 | CALL abort_gcm (modname,abort_message,1) |
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94 | ENDIF |
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95 | IF (rh.gt.85.) RH_num=10 |
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96 | IF (rh.gt.90.) RH_num=11 |
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97 | DELTA=(rh-RH_tab(RH_num))/(RH_tab(RH_num+1)-RH_tab(RH_num)) |
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98 | c |
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99 | inu=1 |
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100 | tau_ae(i,k,inu)=alpha_aer(RH_num,inu) + |
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101 | . DELTA*(alpha_aer(RH_num+1,inu)-alpha_aer(RH_num,inu)) |
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102 | tau_ae(i,k,inu)=tau_ae(i,k,inu)*msulfate(i,k)*zdz*1.e-6 |
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103 | piz_ae(i,k,inu)=1.0 |
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104 | cg_ae(i,k,inu)=cg_aer(RH_num,inu) + |
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105 | . DELTA*(cg_aer(RH_num+1,inu)-cg_aer(RH_num,inu)) |
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106 | c |
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107 | inu=2 |
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108 | tau_ae(i,k,inu)=alpha_aer(RH_num,inu) + |
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109 | . DELTA*(alpha_aer(RH_num+1,inu)-alpha_aer(RH_num,inu)) |
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110 | tau_ae(i,k,inu)=tau_ae(i,k,inu)*msulfate(i,k)*zdz*1.e-6 |
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111 | piz_ae(i,k,inu)=1.0 |
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112 | cg_ae(i,k,inu)=cg_aer(RH_num,inu) + |
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113 | . DELTA*(cg_aer(RH_num+1,inu)-cg_aer(RH_num,inu)) |
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114 | cjq |
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115 | cjq for aerosol index |
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116 | c |
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117 | alphasulfate=alpha_aer_sulfate(RH_num,4) + |
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118 | . DELTA*(alpha_aer_sulfate(RH_num+1,4)- |
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119 | . alpha_aer_sulfate(RH_num,4)) !--m2/g |
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120 | c |
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121 | taue670(i)=taue670(i)+ |
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122 | . alphasulfate*msulfate(i,k)*zdz*1.e-6 |
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123 | c |
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124 | alphasulfate=alpha_aer_sulfate(RH_num,5) + |
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125 | . DELTA*(alpha_aer_sulfate(RH_num+1,5)- |
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126 | . alpha_aer_sulfate(RH_num,5)) !--m2/g |
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127 | c |
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128 | taue865(i)=taue865(i)+ |
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129 | . alphasulfate*msulfate(i,k)*zdz*1.e-6 |
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130 | |
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131 | ENDDO |
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132 | ENDDO |
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133 | c |
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134 | DO i=1, klon |
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135 | ai(i)=(-log(MAX(taue670(i),0.0001)/ |
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136 | . MAX(taue865(i),0.0001))/log(670./865.)) * |
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137 | . taue865(i) |
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138 | ENDDO |
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139 | c |
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140 | RETURN |
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141 | END |
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