1 | ! |
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2 | MODULE surf_landice_mod |
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3 | |
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4 | IMPLICIT NONE |
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5 | |
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6 | CONTAINS |
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7 | ! |
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8 | !**************************************************************************************** |
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9 | ! |
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10 | SUBROUTINE surf_landice(itime, dtime, knon, knindex, & |
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11 | rlon, rlat, debut, lafin, & |
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12 | rmu0, lwdownm, albedo, pphi1, & |
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13 | swnet, lwnet, tsurf, p1lay, & |
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14 | cdragh, cdragm, precip_rain, precip_snow, temp_air, spechum, & |
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15 | AcoefH, AcoefQ, BcoefH, BcoefQ, & |
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16 | AcoefU, AcoefV, BcoefU, BcoefV, & |
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17 | ps, u1, v1, gustiness, rugoro, pctsrf, & |
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18 | snow, qsurf, qsol, agesno, & |
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19 | tsoil, z0m, z0h, SFRWL, alb_dir, alb_dif, evap, fluxsens, fluxlat, & |
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20 | tsurf_new, dflux_s, dflux_l, & |
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21 | slope, cloudf, & |
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22 | snowhgt, qsnow, to_ice, sissnow, & |
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23 | alb3, runoff, & |
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24 | flux_u1, flux_v1) |
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25 | |
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26 | USE dimphy |
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27 | USE surface_data, ONLY : type_ocean, calice, calsno, ok_snow |
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28 | USE fonte_neige_mod, ONLY : fonte_neige, run_off_lic |
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29 | USE cpl_mod, ONLY : cpl_send_landice_fields |
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30 | USE calcul_fluxs_mod |
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31 | USE phys_output_var_mod |
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32 | #ifdef CPP_SISVAT |
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33 | USE surf_sisvat_mod, ONLY : surf_sisvat |
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34 | #endif |
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35 | USE indice_sol_mod |
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36 | |
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37 | ! INCLUDE "indicesol.h" |
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38 | INCLUDE "dimsoil.h" |
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39 | INCLUDE "YOMCST.h" |
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40 | INCLUDE "clesphys.h" |
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41 | |
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42 | ! Input variables |
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43 | !**************************************************************************************** |
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44 | INTEGER, INTENT(IN) :: itime, knon |
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45 | INTEGER, DIMENSION(klon), INTENT(in) :: knindex |
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46 | REAL, INTENT(in) :: dtime |
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47 | REAL, DIMENSION(klon), INTENT(IN) :: swnet ! net shortwave radiance |
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48 | REAL, DIMENSION(klon), INTENT(IN) :: lwnet ! net longwave radiance |
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49 | REAL, DIMENSION(klon), INTENT(IN) :: tsurf |
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50 | REAL, DIMENSION(klon), INTENT(IN) :: p1lay |
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51 | REAL, DIMENSION(klon), INTENT(IN) :: cdragh, cdragm |
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52 | REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow |
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53 | REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum |
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54 | REAL, DIMENSION(klon), INTENT(IN) :: AcoefH, AcoefQ |
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55 | REAL, DIMENSION(klon), INTENT(IN) :: BcoefH, BcoefQ |
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56 | REAL, DIMENSION(klon), INTENT(IN) :: AcoefU, AcoefV, BcoefU, BcoefV |
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57 | REAL, DIMENSION(klon), INTENT(IN) :: ps |
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58 | REAL, DIMENSION(klon), INTENT(IN) :: u1, v1, gustiness |
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59 | REAL, DIMENSION(klon), INTENT(IN) :: rugoro |
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60 | REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf |
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61 | |
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62 | LOGICAL, INTENT(IN) :: debut !true if first step |
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63 | LOGICAL, INTENT(IN) :: lafin !true if last step |
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64 | REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat |
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65 | REAL, DIMENSION(klon), INTENT(IN) :: rmu0 |
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66 | REAL, DIMENSION(klon), INTENT(IN) :: lwdownm !ylwdown |
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67 | REAL, DIMENSION(klon), INTENT(IN) :: albedo !mean albedo |
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68 | REAL, DIMENSION(klon), INTENT(IN) :: pphi1 |
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69 | REAL, DIMENSION(klon), INTENT(IN) :: slope !mean slope in grid box |
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70 | REAL, DIMENSION(klon), INTENT(IN) :: cloudf !total cloud fraction |
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71 | |
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72 | ! In/Output variables |
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73 | !**************************************************************************************** |
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74 | REAL, DIMENSION(klon), INTENT(INOUT) :: snow, qsol |
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75 | REAL, DIMENSION(klon), INTENT(INOUT) :: agesno |
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76 | REAL, DIMENSION(klon, nsoilmx), INTENT(INOUT) :: tsoil |
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77 | |
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78 | ! Output variables |
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79 | !**************************************************************************************** |
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80 | REAL, DIMENSION(klon), INTENT(OUT) :: qsurf |
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81 | REAL, DIMENSION(klon), INTENT(OUT) :: z0m, z0h |
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82 | !albedo SB >>> |
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83 | ! REAL, DIMENSION(klon), INTENT(OUT) :: alb1 ! new albedo in visible SW interval |
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84 | ! REAL, DIMENSION(klon), INTENT(OUT) :: alb2 ! new albedo in near IR interval |
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85 | REAL, DIMENSION(6), INTENT(IN) ::SFRWL |
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86 | REAL, DIMENSION(klon,nsw), INTENT(OUT) ::alb_dir,alb_dif |
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87 | !albedo SB <<< |
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88 | REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat |
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89 | REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new |
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90 | REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l |
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91 | REAL, DIMENSION(klon), INTENT(OUT) :: flux_u1, flux_v1 |
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92 | |
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93 | REAL, DIMENSION(klon), INTENT(OUT) :: alb3 |
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94 | REAL, DIMENSION(klon), INTENT(OUT) :: qsnow !column water in snow [kg/m2] |
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95 | REAL, DIMENSION(klon), INTENT(OUT) :: snowhgt !Snow height (m) |
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96 | REAL, DIMENSION(klon), INTENT(OUT) :: to_ice |
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97 | REAL, DIMENSION(klon), INTENT(OUT) :: sissnow |
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98 | REAL, DIMENSION(klon), INTENT(OUT) :: runoff !Land ice runoff |
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99 | |
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100 | |
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101 | ! Local variables |
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102 | !**************************************************************************************** |
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103 | REAL, DIMENSION(klon) :: soilcap, soilflux |
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104 | REAL, DIMENSION(klon) :: cal, beta, dif_grnd |
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105 | REAL, DIMENSION(klon) :: zfra, alb_neig |
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106 | REAL, DIMENSION(klon) :: radsol |
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107 | REAL, DIMENSION(klon) :: u0, v0, u1_lay, v1_lay |
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108 | INTEGER :: i,j |
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109 | |
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110 | REAL, DIMENSION(klon) :: emis_new !Emissivity |
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111 | REAL, DIMENSION(klon) :: swdown,lwdown |
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112 | REAL, DIMENSION(klon) :: precip_snow_adv, snow_adv !Snow Drift precip./advection |
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113 | REAL, DIMENSION(klon) :: bl_height, wind_velo !height boundary layer, wind spd |
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114 | REAL, DIMENSION(klon) :: dens_air, snow_cont_air !air density; snow content air |
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115 | REAL, DIMENSION(klon) :: alb_soil !albedo of underlying ice |
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116 | REAL, DIMENSION(klon) :: pexner !Exner potential |
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117 | REAL :: pref |
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118 | REAL, DIMENSION(klon,nsoilmx) :: tsoil0 !modfi |
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119 | |
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120 | CHARACTER (len = 20) :: modname = 'surf_landice' |
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121 | CHARACTER (len = 80) :: abort_message |
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122 | |
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123 | !albedo SB >>> |
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124 | real,dimension(klon) :: alb1,alb2 |
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125 | !albedo SB <<< |
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126 | |
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127 | ! End definition |
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128 | !**************************************************************************************** |
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129 | ! |
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130 | ! Initialize output variables |
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131 | alb3(:) = 999999. |
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132 | alb2(:) = 999999. |
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133 | alb1(:) = 999999. |
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134 | |
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135 | runoff(:) = 0. |
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136 | !**************************************************************************************** |
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137 | ! Calculate total absorbed radiance at surface |
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138 | ! |
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139 | !**************************************************************************************** |
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140 | radsol(:) = 0.0 |
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141 | radsol(1:knon) = swnet(1:knon) + lwnet(1:knon) |
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142 | |
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143 | !**************************************************************************************** |
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144 | ! ok_snow = TRUE : prepare and call SISVAT snow model |
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145 | ! ok_snow = FALSE : soil_model, calcul_flux, fonte_neige, ... |
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146 | ! |
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147 | !**************************************************************************************** |
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148 | IF (ok_snow) THEN |
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149 | #ifdef CPP_SISVAT |
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150 | ! Prepare for calling SISVAT |
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151 | |
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152 | ! Calculate incoming flux for SW and LW interval: swdown, lwdown |
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153 | swdown(:) = 0.0 |
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154 | lwdown(:) = 0.0 |
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155 | DO i = 1, knon |
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156 | swdown(i) = swnet(i)/(1-albedo(i)) |
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157 | lwdown(i) = lwdownm(i) |
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158 | END DO |
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159 | |
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160 | ! Set constants and compute some input for SISVAT |
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161 | snow_adv(:) = 0. ! no snow blown in for now |
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162 | snow_cont_air(:) = 0. |
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163 | alb_soil(:) = albedo(:) |
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164 | pref = 100000. ! = 1000 hPa |
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165 | DO i = 1, knon |
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166 | wind_velo(i) = u1(i)**2 + v1(i)**2 |
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167 | wind_velo(i) = wind_velo(i)**0.5 |
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168 | pexner(i) = (p1lay(i)/pref)**(RD/RCPD) |
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169 | dens_air(i) = p1lay(i)/RD/temp_air(i) ! dry air density |
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170 | bl_height(i) = pphi1(i)/RG |
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171 | END DO |
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172 | |
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173 | !**************************************************************************************** |
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174 | ! CALL to SISVAT interface |
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175 | ! |
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176 | !**************************************************************************************** |
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177 | ! config: compute everything with SV but temperatures afterwards with soil/calculfluxs |
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178 | DO i = 1, knon |
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179 | tsoil0(i,:)=tsoil(i,:) |
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180 | END DO |
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181 | ! Martin |
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182 | PRINT*, 'on appelle surf_sisvat' |
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183 | ! Martin |
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184 | CALL surf_sisvat(knon, rlon, rlat, knindex, itime, dtime, debut, lafin, & |
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185 | rmu0, swdown, lwdown, pexner, ps, p1lay, & |
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186 | precip_rain, precip_snow, precip_snow_adv, snow_adv, & |
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187 | bl_height, wind_velo, temp_air, dens_air, spechum, tsurf, & |
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188 | rugoro, snow_cont_air, alb_soil, slope, cloudf, & |
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189 | radsol, qsol, tsoil0, snow, snowhgt, qsnow, to_ice,sissnow, agesno, & |
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190 | AcoefH, AcoefQ, BcoefH, BcoefQ, cdragh, & |
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191 | run_off_lic, evap, fluxsens, fluxlat, dflux_s, dflux_l, & |
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192 | tsurf_new, alb1, alb2, alb3, & |
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193 | emis_new, z0m, qsurf) |
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194 | z0h(1:knon)=z0m(1:knon) ! en attendant mieux |
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195 | |
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196 | ! Suppose zero surface speed |
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197 | u0(:) = 0.0 |
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198 | v0(:) = 0.0 |
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199 | ! The calculation of heat/water fluxes, otherwise done by "CALL calcul_fluxs" is |
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200 | ! integrated in SISVAT, using the same method. It can be found in "sisvat.f", in the |
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201 | ! subroutine "SISVAT_TS2". |
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202 | ! u0, v0=0., dif_grnd=0. and beta=1 are assumed there! |
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203 | |
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204 | CALL calcul_flux_wind(knon, dtime, & |
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205 | u0, v0, u1, v1, gustiness, cdragm, & |
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206 | AcoefU, AcoefV, BcoefU, BcoefV, & |
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207 | p1lay, temp_air, & |
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208 | flux_u1, flux_v1) |
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209 | #else |
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210 | abort_message='Pb de coherence: ok_snow = .true. mais CPP_SISVAT = .false.' |
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211 | CALL abort_gcm(modname,abort_message,1) |
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212 | #endif |
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213 | ELSE ! ok_snow=FALSE |
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214 | |
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215 | !**************************************************************************************** |
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216 | ! Soil calculations |
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217 | ! |
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218 | !**************************************************************************************** |
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219 | IF (soil_model) THEN |
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220 | CALL soil(dtime, is_lic, knon, snow, tsurf, tsoil, soilcap, soilflux) |
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221 | cal(1:knon) = RCPD / soilcap(1:knon) |
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222 | radsol(1:knon) = radsol(1:knon) + soilflux(1:knon) |
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223 | ELSE |
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224 | cal = RCPD * calice |
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225 | WHERE (snow > 0.0) cal = RCPD * calsno |
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226 | ENDIF |
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227 | |
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228 | |
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229 | !**************************************************************************************** |
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230 | ! Calulate fluxes |
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231 | ! |
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232 | !**************************************************************************************** |
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233 | beta(:) = 1.0 |
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234 | dif_grnd(:) = 0.0 |
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235 | |
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236 | ! Suppose zero surface speed |
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237 | u0(:)=0.0 |
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238 | v0(:)=0.0 |
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239 | u1_lay(:) = u1(:) - u0(:) |
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240 | v1_lay(:) = v1(:) - v0(:) |
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241 | |
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242 | CALL calcul_fluxs(knon, is_lic, dtime, & |
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243 | tsurf, p1lay, cal, beta, cdragh, cdragh, ps, & |
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244 | precip_rain, precip_snow, snow, qsurf, & |
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245 | radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, gustiness, & |
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246 | 1.,AcoefH, AcoefQ, BcoefH, BcoefQ, & |
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247 | tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
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248 | |
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249 | CALL calcul_flux_wind(knon, dtime, & |
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250 | u0, v0, u1, v1, gustiness, cdragm, & |
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251 | AcoefU, AcoefV, BcoefU, BcoefV, & |
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252 | p1lay, temp_air, & |
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253 | flux_u1, flux_v1) |
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254 | |
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255 | !**************************************************************************************** |
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256 | ! Calculate snow height, age, run-off,.. |
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257 | ! |
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258 | !**************************************************************************************** |
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259 | CALL fonte_neige( knon, is_lic, knindex, dtime, & |
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260 | tsurf, precip_rain, precip_snow, & |
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261 | snow, qsol, tsurf_new, evap) |
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262 | |
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263 | |
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264 | !**************************************************************************************** |
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265 | ! Calculate albedo |
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266 | ! |
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267 | !**************************************************************************************** |
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268 | CALL albsno(klon,knon,dtime,agesno(:),alb_neig(:), precip_snow(:)) |
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269 | WHERE (snow(1 : knon) .LT. 0.0001) agesno(1 : knon) = 0. |
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270 | zfra(1:knon) = MAX(0.0,MIN(1.0,snow(1:knon)/(snow(1:knon)+10.0))) |
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271 | alb1(1:knon) = alb_neig(1:knon)*zfra(1:knon) + & |
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272 | 0.6 * (1.0-zfra(1:knon)) |
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273 | ! |
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274 | !IM: plusieurs choix/tests sur l'albedo des "glaciers continentaux" |
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275 | ! alb1(1 : knon) = 0.6 !IM cf FH/GK |
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276 | ! alb1(1 : knon) = 0.82 |
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277 | ! alb1(1 : knon) = 0.77 !211003 Ksta0.77 |
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278 | ! alb1(1 : knon) = 0.8 !KstaTER0.8 & LMD_ARMIP5 |
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279 | !IM: KstaTER0.77 & LMD_ARMIP6 |
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280 | |
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281 | ! Attantion: alb1 and alb2 are the same! |
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282 | alb1(1:knon) = 0.77 |
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283 | alb2(1:knon) = alb1(1:knon) |
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284 | |
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285 | |
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286 | !**************************************************************************************** |
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287 | ! Rugosity |
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288 | ! |
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289 | !**************************************************************************************** |
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290 | z0m=1.e-3 |
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291 | z0h = z0m |
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292 | z0m = SQRT(z0m**2+rugoro**2) |
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293 | |
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294 | END IF ! ok_snow |
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295 | |
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296 | |
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297 | !**************************************************************************************** |
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298 | ! Send run-off on land-ice to coupler if coupled ocean. |
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299 | ! run_off_lic has been calculated in fonte_neige or surf_sisvat |
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300 | ! |
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301 | !**************************************************************************************** |
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302 | IF (type_ocean=='couple') THEN |
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303 | CALL cpl_send_landice_fields(itime, knon, knindex, run_off_lic) |
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304 | ENDIF |
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305 | |
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306 | ! transfer runoff rate [kg/m2/s](!) to physiq for output |
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307 | runoff(1:knon)=run_off_lic(1:knon)/dtime |
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308 | |
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309 | |
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310 | !**************************************************************************************** |
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311 | snow_o=0. |
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312 | zfra_o = 0. |
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313 | DO j = 1, knon |
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314 | i = knindex(j) |
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315 | snow_o(i) = snow(j) |
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316 | zfra_o(i) = zfra(j) |
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317 | ENDDO |
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318 | |
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319 | !**************************************************************************************** |
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320 | snow_o=0. |
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321 | zfra_o = 0. |
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322 | DO j = 1, knon |
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323 | i = knindex(j) |
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324 | snow_o(i) = snow(j) |
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325 | zfra_o(i) = zfra(j) |
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326 | ENDDO |
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327 | |
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328 | |
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329 | !albedo SB >>> |
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330 | select case(NSW) |
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331 | case(2) |
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332 | alb_dir(1:knon,1)=alb1(1:knon) |
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333 | alb_dir(1:knon,2)=alb2(1:knon) |
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334 | case(4) |
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335 | alb_dir(1:knon,1)=alb1(1:knon) |
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336 | alb_dir(1:knon,2)=alb2(1:knon) |
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337 | alb_dir(1:knon,3)=alb2(1:knon) |
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338 | alb_dir(1:knon,4)=alb2(1:knon) |
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339 | case(6) |
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340 | alb_dir(1:knon,1)=alb1(1:knon) |
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341 | alb_dir(1:knon,2)=alb1(1:knon) |
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342 | alb_dir(1:knon,3)=alb1(1:knon) |
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343 | alb_dir(1:knon,4)=alb2(1:knon) |
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344 | alb_dir(1:knon,5)=alb2(1:knon) |
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345 | alb_dir(1:knon,6)=alb2(1:knon) |
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346 | end select |
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347 | alb_dif=alb_dir |
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348 | !albedo SB <<< |
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349 | |
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350 | |
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351 | |
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352 | |
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353 | END SUBROUTINE surf_landice |
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354 | ! |
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355 | !**************************************************************************************** |
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356 | ! |
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357 | END MODULE surf_landice_mod |
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358 | |
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359 | |
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360 | |
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