[224] | 1 | subroutine hydrol(ngrid,nq,ptimestep,rnat,tsurf, & |
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| 2 | qsurf,dqsurf,dqs_hyd,pcapcal, & |
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| 3 | albedo0,albedo,mu0,pdtsurf,pdtsurf_hyd,hice, & |
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| 4 | pctsrf_sic,sea_ice) |
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| 5 | |
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| 6 | use ioipsl_getincom |
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| 7 | use watercommon_h, only: T_h2O_ice_liq, RLFTT, rhowater, mx_eau_sol |
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| 8 | USE surfdat_h |
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| 9 | use comdiurn_h |
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| 10 | USE comgeomfi_h |
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| 11 | USE tracer_h |
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| 12 | use slab_ice_h |
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| 13 | |
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| 14 | implicit none |
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| 15 | |
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| 16 | !================================================================== |
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| 17 | ! |
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| 18 | ! Purpose |
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| 19 | ! ------- |
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| 20 | ! Calculate the surface hydrology and albedo changes. |
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| 21 | ! |
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| 22 | ! Authors |
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| 23 | ! ------- |
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| 24 | ! Adapted from LMDTERRE by B. Charnay (2010). Further |
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| 25 | ! modifications by R. Wordsworth (2010). |
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| 26 | ! |
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| 27 | ! Called by |
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| 28 | ! --------- |
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| 29 | ! physiq.F |
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| 30 | ! |
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| 31 | ! Calls |
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| 32 | ! ----- |
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| 33 | ! none |
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| 34 | ! |
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| 35 | ! Notes |
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| 36 | ! ----- |
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| 37 | ! rnat is terrain type: 0-ocean; 1-continent |
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| 38 | ! |
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| 39 | !================================================================== |
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| 40 | |
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| 41 | !----------------------------------------------------------------------- |
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| 42 | ! INCLUDE 'dimensions.h' |
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| 43 | ! |
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| 44 | ! dimensions.h contient les dimensions du modele |
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| 45 | ! ndm est tel que iim=2**ndm |
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| 46 | !----------------------------------------------------------------------- |
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| 47 | |
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| 48 | INTEGER iim,jjm,llm,ndm |
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| 49 | |
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| 50 | PARAMETER (iim= 128,jjm=96,llm=64,ndm=1) |
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| 51 | |
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| 52 | !----------------------------------------------------------------------- |
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| 53 | !----------------------------------------------------------------------- |
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| 54 | ! INCLUDE 'dimphys.h' |
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| 55 | |
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| 56 | ! ngridmx : number of horizontal grid points |
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| 57 | ! note: the -1/jjm term will be 0; unless jj=1 |
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| 58 | integer, parameter :: ngridmx = (2+(jjm-1)*iim - 1/jjm) |
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| 59 | ! nlayermx : number of atmospheric layers |
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| 60 | integer, parameter :: nlayermx = llm |
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| 61 | ! nsoilmx : number of subterranean layers ! nsoilmx is now in comsoil_h |
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| 62 | !integer, parameter :: nsoilmx = 4 ! for a test |
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| 63 | !integer, parameter :: nsoilmx = 18 ! for z1=0.0002 m, depth = 18 m => mars case |
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| 64 | !integer, parameter :: nsoilmx = 13 ! for z1=0.03 m, depth = 104.8 m => earth case |
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| 65 | !----------------------------------------------------------------------- |
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| 66 | |
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| 67 | !----------------------------------------------------------------------- |
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| 68 | ! INCLUDE "comcstfi.h" |
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| 69 | |
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| 70 | common/comcstfi/pi,rad,g,r,cpp,rcp,dtphys,daysec,mugaz,omeg |
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| 71 | common/comcstfi/avocado!,molrad,visc |
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| 72 | |
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| 73 | real pi,rad,g,r,cpp,rcp,dtphys,daysec,mugaz,omeg |
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| 74 | real avocado!,molrad,visc |
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| 75 | |
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| 76 | ! |
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| 77 | ! For Fortran 77/Fortran 90 compliance always use line continuation |
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| 78 | ! symbols '&' in columns 73 and 6 |
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| 79 | ! |
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| 80 | ! Group commons according to their type for minimal performance impact |
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| 81 | |
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| 82 | COMMON/callkeys_l/callrad,corrk,calldifv,UseTurbDiff,calladj & |
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| 83 | & , co2cond,callsoil & |
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| 84 | & , season,diurnal,tlocked,rings_shadow,lwrite & |
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| 85 | & , callstats,calleofdump & |
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| 86 | & , enertest & |
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| 87 | & , callgasvis,continuum,H2Ocont_simple,graybody & |
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| 88 | & , radfixed & |
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| 89 | & , meanOLR, specOLR & |
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| 90 | & , kastprof & |
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| 91 | & , nosurf, oblate & |
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| 92 | & , newtonian, testradtimes & |
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| 93 | & , check_cpp_match, force_cpp & |
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| 94 | & , rayleigh & |
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| 95 | & , stelbbody & |
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| 96 | & , nearco2cond & |
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| 97 | & , tracer, mass_redistrib, varactive, varfixed & |
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| 98 | & , sedimentation,water,watercond,waterrain & |
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| 99 | & , aeroco2,aeroh2o,aeroh2so4,aeroback2lay & |
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| 100 | & , aerofixco2,aerofixh2o & |
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| 101 | & , hydrology, sourceevol & |
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| 102 | & , CLFvarying & |
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| 103 | & , strictboundcorrk & |
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| 104 | & , ok_slab_ocean & |
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| 105 | & , ok_slab_sic & |
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| 106 | & , ok_slab_heat_transp |
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| 107 | |
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| 108 | |
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| 109 | COMMON/callkeys_i/iaervar,iddist,iradia,startype |
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| 110 | |
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| 111 | COMMON/callkeys_r/topdustref,Nmix_co2,dusttau,Fat1AU,stelTbb, & |
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| 112 | & Tstrat,tplanet,obs_tau_col_tropo, & |
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| 113 | & obs_tau_col_strato,pres_bottom_tropo, & |
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| 114 | & pres_top_tropo,pres_bottom_strato, & |
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| 115 | & pres_top_strato,size_tropo,size_strato,satval, & |
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| 116 | & CLFfixval,n2mixratio,co2supsat,pceil,albedosnow,& |
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| 117 | & maxicethick,Tsaldiff,tau_relax,cloudlvl, & |
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| 118 | & icetstep,intheat,flatten,Rmean,J2,MassPlanet |
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| 119 | |
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| 120 | logical callrad,corrk,calldifv,UseTurbDiff & |
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| 121 | & , calladj,co2cond,callsoil & |
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| 122 | & , season,diurnal,tlocked,rings_shadow,lwrite & |
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| 123 | & , callstats,calleofdump & |
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| 124 | & , callgasvis,continuum,H2Ocont_simple,graybody & |
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| 125 | & , strictboundcorrk |
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| 126 | |
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| 127 | logical enertest |
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| 128 | logical nonideal |
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| 129 | logical meanOLR |
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| 130 | logical specOLR |
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| 131 | logical kastprof |
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| 132 | logical newtonian |
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| 133 | logical check_cpp_match |
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| 134 | logical force_cpp |
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| 135 | logical testradtimes |
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| 136 | logical rayleigh |
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| 137 | logical stelbbody |
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| 138 | logical ozone |
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| 139 | logical nearco2cond |
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| 140 | logical tracer |
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| 141 | logical mass_redistrib |
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| 142 | logical varactive |
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| 143 | logical varfixed |
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| 144 | logical radfixed |
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| 145 | logical sedimentation |
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| 146 | logical water,watercond,waterrain |
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| 147 | logical aeroco2,aeroh2o,aeroh2so4,aeroback2lay |
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| 148 | logical aerofixco2,aerofixh2o |
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| 149 | logical hydrology |
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| 150 | logical sourceevol |
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| 151 | logical CLFvarying |
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| 152 | logical nosurf |
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| 153 | logical oblate |
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| 154 | logical ok_slab_ocean |
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| 155 | logical ok_slab_sic |
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| 156 | logical ok_slab_heat_transp |
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| 157 | |
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| 158 | integer iddist |
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| 159 | integer iaervar |
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| 160 | integer iradia |
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| 161 | integer startype |
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| 162 | |
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| 163 | real topdustref |
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| 164 | real Nmix_co2 |
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| 165 | real dusttau |
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| 166 | real Fat1AU |
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| 167 | real stelTbb |
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| 168 | real Tstrat |
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| 169 | real tplanet |
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| 170 | real obs_tau_col_tropo |
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| 171 | real obs_tau_col_strato |
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| 172 | real pres_bottom_tropo |
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| 173 | real pres_top_tropo |
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| 174 | real pres_bottom_strato |
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| 175 | real pres_top_strato |
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| 176 | real size_tropo |
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| 177 | real size_strato |
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| 178 | real satval |
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| 179 | real CLFfixval |
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| 180 | real n2mixratio |
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| 181 | real co2supsat |
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| 182 | real pceil |
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| 183 | real albedosnow |
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| 184 | real maxicethick |
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| 185 | real Tsaldiff |
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| 186 | real tau_relax |
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| 187 | real cloudlvl |
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| 188 | real icetstep |
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| 189 | real intheat |
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| 190 | real flatten |
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| 191 | real Rmean |
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| 192 | real J2 |
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| 193 | real MassPlanet |
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| 194 | |
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| 195 | integer ngrid,nq |
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| 196 | |
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| 197 | ! Inputs |
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| 198 | ! ------ |
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| 199 | real albedoice |
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| 200 | save albedoice |
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| 201 | |
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| 202 | real snowlayer |
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| 203 | parameter (snowlayer=33.0) ! 33 kg/m^2 of snow, equal to a layer of 3.3 cm |
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| 204 | real oceantime |
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| 205 | parameter (oceantime=10*24*3600) |
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| 206 | |
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| 207 | logical,save :: oceanbulkavg ! relax ocean temperatures to a GLOBAL mean value? |
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| 208 | logical,save :: activerunoff ! enable simple runoff scheme? |
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| 209 | logical,save :: oceanalbvary ! ocean albedo varies with the diurnal cycle? |
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| 210 | |
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| 211 | ! Arguments |
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| 212 | ! --------- |
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| 213 | real rnat(ngrid) ! I changed this to integer (RW) |
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| 214 | real,dimension(:),allocatable,save :: runoff |
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| 215 | real totalrunoff, tsea, oceanarea |
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| 216 | save oceanarea |
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| 217 | |
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| 218 | real ptimestep |
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| 219 | real mu0(ngrid) |
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| 220 | real qsurf(ngrid,nq), tsurf(ngrid) |
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| 221 | real dqsurf(ngrid,nq), pdtsurf(ngrid) |
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| 222 | real hice(ngrid) |
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| 223 | real albedo0(ngrid), albedo(ngrid) |
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| 224 | real pctsrf_sic(ngrid), sea_ice(ngrid) |
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| 225 | |
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| 226 | real oceanarea2 |
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| 227 | |
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| 228 | ! Output |
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| 229 | ! ------ |
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| 230 | real dqs_hyd(ngrid,nq) |
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| 231 | real pdtsurf_hyd(ngrid) |
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| 232 | |
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| 233 | ! Local |
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| 234 | ! ----- |
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| 235 | real a,b,E |
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| 236 | integer ig,iq, icap ! wld like to remove icap |
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| 237 | real fsnoi, subli, fauxo |
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| 238 | real twater(ngrid) |
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| 239 | real pcapcal(ngrid) |
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| 240 | real hicebis(ngrid) |
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| 241 | real zqsurf(ngrid,nq) |
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| 242 | real ztsurf(ngrid) |
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| 243 | real albedo_sic, alb_ice |
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| 244 | real zfra |
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| 245 | |
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| 246 | integer, save :: ivap, iliq, iice |
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| 247 | |
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| 248 | logical, save :: firstcall |
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| 249 | |
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| 250 | data firstcall /.true./ |
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| 251 | |
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| 252 | |
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| 253 | if(firstcall)then |
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| 254 | |
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| 255 | oceanbulkavg=.false. |
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| 256 | oceanalbvary=.false. |
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| 257 | write(*,*)"Activate runnoff into oceans?" |
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| 258 | activerunoff=.false. |
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| 259 | call getin("activerunoff",activerunoff) |
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| 260 | write(*,*)" activerunoff = ",activerunoff |
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| 261 | |
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| 262 | |
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| 263 | |
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| 264 | if (activerunoff) ALLOCATE(runoff(ngrid)) |
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| 265 | |
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| 266 | ivap=igcm_h2o_vap |
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| 267 | iliq=igcm_h2o_vap |
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| 268 | iice=igcm_h2o_ice |
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| 269 | |
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| 270 | write(*,*) "hydrol: ivap=",ivap |
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| 271 | write(*,*) " iliq=",iliq |
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| 272 | write(*,*) " iice=",iice |
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| 273 | |
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| 274 | ! Here's the deal: iice is used in place of igcm_h2o_ice both on the |
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| 275 | ! surface and in the atmosphere. ivap is used in |
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| 276 | ! place of igcm_h2o_vap ONLY in the atmosphere, while |
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| 277 | ! iliq is used in place of igcm_h2o_vap ONLY on the |
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| 278 | ! surface. |
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| 279 | |
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| 280 | ! Soon to be extended to the entire water cycle... |
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| 281 | |
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| 282 | ! Ice albedo = snow albedo for now |
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| 283 | albedoice=albedosnow |
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| 284 | |
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| 285 | ! Total ocean surface area |
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| 286 | oceanarea=0. |
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| 287 | do ig=1,ngrid |
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| 288 | if(nint(rnat(ig)).eq.0)then |
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| 289 | oceanarea=oceanarea+area(ig) |
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| 290 | endif |
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| 291 | enddo |
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| 292 | |
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| 293 | if(oceanbulkavg.and.(oceanarea.le.0.))then |
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| 294 | print*,'How are we supposed to average the ocean' |
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| 295 | print*,'temperature, when there are no oceans?' |
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| 296 | call abort |
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| 297 | endif |
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| 298 | |
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| 299 | if(activerunoff.and.(oceanarea.le.0.))then |
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| 300 | print*,'You have enabled runoff, but you have no oceans.' |
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| 301 | print*,'Where did you think the water was going to go?' |
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| 302 | call abort |
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| 303 | endif |
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| 304 | |
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| 305 | firstcall = .false. |
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| 306 | endif |
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| 307 | |
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| 308 | ! add physical tendencies already calculated |
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| 309 | ! ------------------------------------------ |
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| 310 | |
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| 311 | do ig=1,ngrid |
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| 312 | ztsurf(ig) = tsurf(ig) + ptimestep*pdtsurf(ig) |
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| 313 | pdtsurf_hyd(ig)=0.0 |
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| 314 | do iq=1,nq |
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| 315 | zqsurf(ig,iq) = qsurf(ig,iq) + ptimestep*dqsurf(ig,iq) |
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| 316 | enddo |
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| 317 | enddo |
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| 318 | |
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| 319 | do ig=1,ngrid |
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| 320 | do iq=1,nq |
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| 321 | dqs_hyd(ig,iq) = 0.0 |
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| 322 | enddo |
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| 323 | enddo |
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| 324 | |
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| 325 | do ig = 1, ngrid |
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| 326 | |
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| 327 | ! Ocean |
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| 328 | ! ----- |
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| 329 | if(nint(rnat(ig)).eq.0)then |
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| 330 | |
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| 331 | ! re-calculate oceanic albedo |
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| 332 | ! if(diurnal.and.oceanalbvary)then |
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| 333 | ! fauxo = ( 1.47 - ACOS( mu0(ig) ) )/0.15 ! where does this come from (Benjamin)? |
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| 334 | ! albedo(ig) = 1.1*( .03 + .630/( 1. + fauxo*fauxo)) |
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| 335 | ! albedo(ig) = MAX(MIN(albedo(ig),0.60),0.04) |
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| 336 | ! else |
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| 337 | albedo(ig) = alb_ocean ! modif Benjamin |
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| 338 | ! end if |
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| 339 | |
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| 340 | |
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| 341 | if(ok_slab_ocean) then |
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| 342 | |
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| 343 | ! Fraction neige (hauteur critique 45kg/m2~15cm) |
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| 344 | zfra = MAX(0.0,MIN(1.0,zqsurf(ig,iice)/45.0)) |
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| 345 | ! Albedo glace |
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| 346 | alb_ice=alb_ice_max-(alb_ice_max-alb_ice_min) & |
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| 347 | *exp(-sea_ice(ig)/h_alb_ice) |
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| 348 | ! Albedo glace+neige |
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| 349 | albedo_sic= albedosnow*zfra + alb_ice*(1.0-zfra) |
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| 350 | |
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| 351 | ! Albedo final |
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| 352 | albedo(ig) = pctsrf_sic(ig)*albedo_sic + (1.-pctsrf_sic(ig))*alb_ocean |
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| 353 | ! oceanic ice height, just for diagnostics |
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| 354 | hice(ig) = MIN(10.,sea_ice(ig)/rhowater) |
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| 355 | else !ok_slab_ocean |
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| 356 | |
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| 357 | |
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| 358 | ! calculate oceanic ice height including the latent heat of ice formation |
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| 359 | ! hice is the height of oceanic ice with a maximum of maxicethick. |
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| 360 | hice(ig) = zqsurf(ig,iice)/rhowater ! update hice to include recent snowfall |
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| 361 | |
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| 362 | ! twater(ig) = tsurf(ig) + ptimestep*zdtsurf(ig) & |
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| 363 | twater(ig) = ztsurf(ig) - hice(ig)*RLFTT*rhowater/pcapcal(ig) |
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| 364 | ! this is temperature water would have if we melted entire ocean ice layer |
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| 365 | hicebis(ig) = hice(ig) |
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| 366 | hice(ig) = 0. |
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| 367 | |
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| 368 | if(twater(ig) .lt. T_h2O_ice_liq)then |
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| 369 | E=min((T_h2O_ice_liq+Tsaldiff-twater(ig))*pcapcal(ig),RLFTT*rhowater*maxicethick) |
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| 370 | hice(ig) = E/(RLFTT*rhowater) |
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| 371 | hice(ig) = max(hice(ig),0.0) |
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| 372 | hice(ig) = min(hice(ig),maxicethick) |
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| 373 | pdtsurf_hyd(ig) = (hice(ig) - hicebis(ig))*RLFTT*rhowater/pcapcal(ig)/ptimestep |
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| 374 | albedo(ig) = albedoice |
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| 375 | |
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| 376 | ! if (zqsurf(ig,iice).ge.snowlayer) then |
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| 377 | ! albedo(ig) = albedoice |
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| 378 | ! else |
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| 379 | ! albedo(ig) = albedoocean & |
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| 380 | ! + (albedosnow - albedoocean)*zqsurf(ig,iice)/snowlayer |
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| 381 | ! endif |
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| 382 | |
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| 383 | else |
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| 384 | |
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| 385 | pdtsurf_hyd(ig) = -hicebis(ig)*RLFTT*rhowater/pcapcal(ig)/ptimestep |
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| 386 | albedo(ig) = alb_ocean |
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| 387 | |
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| 388 | endif |
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| 389 | |
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| 390 | zqsurf(ig,iliq) = zqsurf(ig,iliq)-(hice(ig)*rhowater-zqsurf(ig,iice)) |
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| 391 | zqsurf(ig,iice) = hice(ig)*rhowater |
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| 392 | |
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| 393 | endif!(ok_slab_ocean) |
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| 394 | |
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| 395 | |
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| 396 | ! Continent |
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| 397 | ! --------- |
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| 398 | elseif (nint(rnat(ig)).eq.1) then |
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| 399 | |
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| 400 | ! melt the snow |
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| 401 | if(ztsurf(ig).gt.T_h2O_ice_liq)then |
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| 402 | if(zqsurf(ig,iice).gt.1.0e-8)then |
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| 403 | |
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| 404 | a = (ztsurf(ig)-T_h2O_ice_liq)*pcapcal(ig)/RLFTT |
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| 405 | b = zqsurf(ig,iice) |
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| 406 | fsnoi = min(a,b) |
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| 407 | |
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| 408 | zqsurf(ig,iice) = zqsurf(ig,iice) - fsnoi |
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| 409 | zqsurf(ig,iliq) = zqsurf(ig,iliq) + fsnoi |
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| 410 | |
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| 411 | ! thermal effects |
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| 412 | pdtsurf_hyd(ig) = -fsnoi*RLFTT/pcapcal(ig)/ptimestep |
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| 413 | |
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| 414 | endif |
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| 415 | else |
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| 416 | |
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| 417 | ! freeze the water |
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| 418 | if(zqsurf(ig,iliq).gt.1.0e-8)then |
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| 419 | |
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| 420 | a = -(ztsurf(ig)-T_h2O_ice_liq)*pcapcal(ig)/RLFTT |
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| 421 | b = zqsurf(ig,iliq) |
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| 422 | |
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| 423 | fsnoi = min(a,b) |
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| 424 | |
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| 425 | zqsurf(ig,iice) = zqsurf(ig,iice) + fsnoi |
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| 426 | zqsurf(ig,iliq) = zqsurf(ig,iliq) - fsnoi |
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| 427 | |
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| 428 | ! thermal effects |
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| 429 | pdtsurf_hyd(ig) = +fsnoi*RLFTT/pcapcal(ig)/ptimestep |
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| 430 | |
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| 431 | endif |
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| 432 | endif |
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| 433 | |
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| 434 | ! deal with runoff |
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| 435 | if(activerunoff)then |
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| 436 | |
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| 437 | runoff(ig) = max(zqsurf(ig,iliq) - mx_eau_sol, 0.0) |
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| 438 | if(ngrid.gt.1)then ! runoff only exists in 3D |
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| 439 | if(runoff(ig).ne.0.0)then |
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| 440 | zqsurf(ig,iliq) = mx_eau_sol |
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| 441 | ! runoff is added to ocean at end |
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| 442 | endif |
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| 443 | end if |
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| 444 | |
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| 445 | endif |
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| 446 | |
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| 447 | ! re-calculate continental albedo |
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| 448 | albedo(ig) = albedo0(ig) ! albedo0 = base values |
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| 449 | if (zqsurf(ig,iice).ge.snowlayer) then |
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| 450 | albedo(ig) = albedosnow |
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| 451 | else |
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| 452 | albedo(ig) = albedo0(ig) & |
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| 453 | + (albedosnow - albedo0(ig))*zqsurf(ig,iice)/snowlayer |
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| 454 | endif |
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| 455 | |
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| 456 | else |
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| 457 | |
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| 458 | print*,'Surface type not recognised in hydrol.F!' |
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| 459 | print*,'Exiting...' |
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| 460 | call abort |
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| 461 | |
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| 462 | endif |
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| 463 | |
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| 464 | end do ! ig=1,ngrid |
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| 465 | |
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| 466 | ! perform crude bulk averaging of temperature in ocean |
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| 467 | ! ---------------------------------------------------- |
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| 468 | if(oceanbulkavg)then |
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| 469 | |
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| 470 | oceanarea2=0. |
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| 471 | DO ig=1,ngrid |
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| 472 | if((nint(rnat(ig)).eq.0).and.(hice(ig).eq.0.))then |
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| 473 | oceanarea2=oceanarea2+area(ig)*pcapcal(ig) |
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| 474 | end if |
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| 475 | END DO |
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| 476 | |
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| 477 | tsea=0. |
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| 478 | DO ig=1,ngrid |
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| 479 | if((nint(rnat(ig)).eq.0).and.(hice(ig).eq.0.))then |
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| 480 | tsea=tsea+ztsurf(ig)*area(ig)*pcapcal(ig)/oceanarea2 |
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| 481 | end if |
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| 482 | END DO |
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| 483 | |
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| 484 | DO ig=1,ngrid |
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| 485 | if((nint(rnat(ig)).eq.0).and.(hice(ig).eq.0))then |
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| 486 | pdtsurf_hyd(ig) = pdtsurf_hyd(ig) + (tsea-ztsurf(ig))/oceantime |
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| 487 | end if |
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| 488 | END DO |
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| 489 | |
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| 490 | print*,'Mean ocean temperature = ',tsea,' K' |
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| 491 | |
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| 492 | endif |
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| 493 | |
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| 494 | ! shove all the runoff water into the ocean |
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| 495 | ! ----------------------------------------- |
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| 496 | if(activerunoff)then |
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| 497 | |
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| 498 | totalrunoff=0. |
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| 499 | do ig=1,ngrid |
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| 500 | if (nint(rnat(ig)).eq.1) then |
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| 501 | totalrunoff = totalrunoff + area(ig)*runoff(ig) |
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| 502 | endif |
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| 503 | enddo |
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| 504 | |
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| 505 | do ig=1,ngrid |
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| 506 | if (nint(rnat(ig)).eq.0) then |
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| 507 | zqsurf(ig,iliq) = zqsurf(ig,iliq) + & |
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| 508 | totalrunoff/oceanarea |
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| 509 | endif |
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| 510 | enddo |
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| 511 | |
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| 512 | endif |
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| 513 | |
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| 514 | |
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| 515 | ! Re-add the albedo effects of CO2 ice if necessary |
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| 516 | ! ------------------------------------------------- |
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| 517 | if(co2cond)then |
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| 518 | |
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| 519 | icap=1 |
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| 520 | do ig=1,ngrid |
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| 521 | if (qsurf(ig,igcm_co2_ice).gt.0) then |
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| 522 | albedo(ig) = albedice(icap) |
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| 523 | endif |
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| 524 | enddo |
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| 525 | |
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| 526 | endif |
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| 527 | |
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| 528 | |
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| 529 | do ig=1,ngrid |
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| 530 | dqs_hyd(ig,iliq)=(zqsurf(ig,iliq) - qsurf(ig,iliq))/ptimestep |
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| 531 | dqs_hyd(ig,iice)=(zqsurf(ig,iice) - qsurf(ig,iice))/ptimestep |
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| 532 | enddo |
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| 533 | |
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| 534 | if (activerunoff) then |
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| 535 | call writediagfi(ngrid,'runoff','Runoff amount',' ',2,runoff) |
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| 536 | endif |
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| 537 | |
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| 538 | return |
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| 539 | end subroutine hydrol |
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