| 1 | SUBROUTINE ice_phy_remap(nlay_s,nlay_i,kideb,kiut) |
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| 2 | |
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| 3 | !!----------------------------------------------------------------------------- |
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| 4 | !! ** Purpose : |
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| 5 | !! This routine redistributes heat content and salt mass |
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| 6 | !! on the new grid |
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| 7 | !! |
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| 8 | !! |
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| 9 | !! ** Method : Linear redistribution |
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| 10 | !! |
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| 11 | !! ** Steps : switches, snow, ice heat content, ice salt content |
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| 12 | !! |
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| 13 | !! ** Arguments |
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| 14 | !! |
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| 15 | !! ** Inputs / Outputs |
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| 16 | !! |
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| 17 | !! ** External |
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| 18 | !! |
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| 19 | !! ** References |
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| 20 | !! |
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| 21 | !! ** History : (05-2003) Martin Vancoppenolle, LIM1D |
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| 22 | !! (05-2008) Martin Vancoppenolle, LLN, revision BIOLIM |
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| 23 | !! (09-2009) Martin Vancoppenolle, LLN, restructuration BIOLIM |
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| 24 | !!----------------------------------------------------------------------------- |
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| 25 | |
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| 26 | USE lib_fortran |
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| 27 | |
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| 28 | INCLUDE 'type.com' |
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| 29 | INCLUDE 'para.com' |
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| 30 | INCLUDE 'const.com' |
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| 31 | INCLUDE 'ice.com' |
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| 32 | INCLUDE 'thermo.com' |
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| 33 | INCLUDE 'bio.com' |
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| 34 | INCLUDE 'tank.com' |
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| 35 | |
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| 36 | ! Local Variables |
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| 37 | REAL(8), DIMENSION (maxnlay) :: |
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| 38 | & zsh_i0 , !: old ice salt content (ppt.m-2) |
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| 39 | & zsh_i1 !: new ice salt content (ppt.m-2) |
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| 40 | |
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| 41 | REAL(8), DIMENSION (maxnlay) :: |
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| 42 | & zqh_i0 , !: old ice heat content (J.m-2) |
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| 43 | & zqh_i1 !: new ice heat content (J.m-2) |
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| 44 | |
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| 45 | REAL(8), DIMENSION (maxnlay) :: |
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| 46 | & zqh_s0 , !: old snow heat content (J.m-2) |
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| 47 | & zqh_s1 !: new snow heat content (J.m-2) |
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| 48 | |
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| 49 | REAL(8), DIMENSION( maxnlay ) :: |
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| 50 | & zthick1 !: thickness of physical layers |
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| 51 | |
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| 52 | REAL(8), DIMENSION (maxnlay+2) :: |
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| 53 | & zthick0 !: thickness of old layers |
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| 54 | LOGICAL :: |
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| 55 | & ln_write, ln_con |
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| 56 | |
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| 57 | ! Local Constants |
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| 58 | zeps = 1.0e-20 |
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| 59 | |
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| 60 | ln_write = .TRUE. |
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| 61 | ln_con = .TRUE. |
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| 62 | |
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| 63 | s_i_b(1,:) = sn_i_b(:) ! update salinity |
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| 64 | |
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| 65 | IF ( ln_write ) THEN |
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| 66 | WRITE(numout,*) ' ** ice_phy_remap : ' |
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| 67 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~ ' |
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| 68 | WRITE(numout,*) |
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| 69 | ENDIF |
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| 70 | ! |
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| 71 | !------------------------------------------------------------------------------| |
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| 72 | ! CONSERVATION CHECKS | |
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| 73 | !------------------------------------------------------------------------------| |
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| 74 | ! |
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| 75 | |
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| 76 | ji = 1 |
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| 77 | IF ( ln_con ) THEN |
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| 78 | CALL ice_sal_column(kideb,kiut,z_ms_i_ini,s_i_b(1,1:nlay_i), |
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| 79 | & deltaz_i_phy, nlay_i, .FALSE. ) |
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| 80 | ! salt content loss due to ice melt |
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| 81 | zfmelt = ( s_i_b(ji,1) * dh_i_surf(ji) + s_i_b(ji,nlay_i) * |
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| 82 | & MIN(dh_i_bott(ji),0.0) ) / ddtb |
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| 83 | ENDIF |
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| 84 | |
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| 85 | zqt_s_ini = 0.0 ! total heat content in snow (initial value) |
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| 86 | zqt_i_ini = 0.0 ! total heat content in ice (initial value) |
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| 87 | zqt_s_fin = 0.0 ! total heat content in snow (final value) |
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| 88 | zqt_i_fin = 0.0 ! total heat content in ice (final value) |
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| 89 | zqt_ini = 0.0 ! total heat content snow + ice (initial value) |
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| 90 | zqt_fin = 0.0 ! total heat content snow + ice (final value) |
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| 91 | |
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| 92 | DO 10 ji = kideb, kiut |
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| 93 | ! |
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| 94 | !------------------------------------------------------------------------------| |
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| 95 | ! SWITCHES | |
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| 96 | !------------------------------------------------------------------------------| |
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| 97 | ! |
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| 98 | ! snow surface behaviour : calcul de snind-snswi |
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| 99 | ! snind : index tel que sa valeur est 0 si la neige s'accrète |
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| 100 | ! 1 si la 1ere couche est entamée par la fonte |
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| 101 | ! 2 si la 2eme .... |
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| 102 | ! etc ... |
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| 103 | snind = 0 |
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| 104 | deltah = 0.0 |
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| 105 | DO layer = 1, nlay_s |
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| 106 | IF ( - dh_s_tot(ji) .GT. deltah ) THEN |
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| 107 | snind = layer |
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| 108 | ENDIF |
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| 109 | deltah = deltah + deltaz_s_phy(layer) |
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| 110 | END DO |
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| 111 | |
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| 112 | ! snswi : switch which value equals 1 if snow melts |
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| 113 | ! 0 if not |
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| 114 | snswi = MAX(0,INT(-dh_s_tot(ji)/MAX(zeps,ABS(dh_s_tot(ji))))) |
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| 115 | |
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| 116 | ! ice surface behaviour : computation of icsuind-icsuswi |
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| 117 | ! icsuind : index which values equals 0 if there is nothing |
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| 118 | ! 1 if first layer has started to melt |
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| 119 | ! 2 if first and second layer have started ... |
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| 120 | ! etc ... |
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| 121 | icsuind = 0 |
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| 122 | deltah = 0.0 |
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| 123 | DO layer = 1, nlay_i |
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| 124 | IF ( -dh_i_surf(ji).GT.deltah) THEN |
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| 125 | icsuind = layer |
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| 126 | ENDIF |
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| 127 | deltah = deltah + deltaz_i_phy(layer) |
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| 128 | END DO |
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| 129 | |
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| 130 | ! icsuswi : switch which value equals 1 if ice melts at the surface |
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| 131 | ! 0 if not |
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| 132 | icsuswi = max(0,int(-dh_i_surf(ji) |
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| 133 | & /max(zeps,abs(dh_i_surf(ji))))) |
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| 134 | |
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| 135 | ! ice bottom behaviour : computation of icboind-icboswi |
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| 136 | ! icboind : index which values equals 0 if accretion is on the way |
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| 137 | ! 1 if last layer has started to melt |
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| 138 | ! 2 if penultiem layer has started ... |
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| 139 | ! etc ... |
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| 140 | icboind = 0 |
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| 141 | deltah = 0.0 |
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| 142 | DO layer = nlay_i, 1, -1 |
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| 143 | IF (-dh_i_bott(ji) .GT. deltah) THEN |
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| 144 | icboind = nlay_i+1-layer |
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| 145 | ENDIF |
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| 146 | deltah = deltah + deltaz_i_phy(layer) |
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| 147 | END DO |
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| 148 | |
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| 149 | ! icboswi : switch which value equals 1 if accretion of ice is on the way |
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| 150 | ! 0 if ablation is on the way |
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| 151 | icboswi = max(0,int(dh_i_bott(ji) |
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| 152 | & /max(zeps,abs(dh_i_bott(ji))))) |
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| 153 | |
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| 154 | ! snow-ice formation : calcul de snicind-snicswi |
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| 155 | ! snicind : index which values equals 0 if no snow-ice forms |
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| 156 | ! 1 if last layer of snow has started to melt |
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| 157 | ! 2 if penultiem layer ... |
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| 158 | snicind = 0 |
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| 159 | deltah = 0.0 |
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| 160 | DO layer = nlay_s, 1, -1 |
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| 161 | IF ( dh_snowice(ji) .GT. deltah ) THEN |
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| 162 | snicind = nlay_s+1-layer |
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| 163 | ENDIF |
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| 164 | deltah = deltah + deltaz_s_phy(layer) |
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| 165 | END DO |
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| 166 | |
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| 167 | ! snicswi : switch which value equals 1 if snow-ice forms |
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| 168 | ! 0 if not |
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| 169 | snicswi = max(0,int(dh_snowice(ji)/ |
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| 170 | & max(zeps,abs(dh_snowice(ji))))) |
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| 171 | |
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| 172 | IF ( ln_write ) THEN |
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| 173 | WRITE(numout,*) ' - Switches ... ' |
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| 174 | WRITE(numout,*) ' snind : ', snind |
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| 175 | WRITE(numout,*) ' snswi : ', snswi |
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| 176 | WRITE(numout,*) ' icsuind : ', icsuind |
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| 177 | WRITE(numout,*) ' icsuswi : ', icsuswi |
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| 178 | WRITE(numout,*) ' icboind : ', icboind |
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| 179 | WRITE(numout,*) ' icboswi : ', icboswi |
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| 180 | WRITE(numout,*) ' snicind : ', snicind |
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| 181 | WRITE(numout,*) ' snicswi : ', snicswi |
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| 182 | WRITE(numout,*) |
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| 183 | ENDIF |
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| 184 | |
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| 185 | !------------------------------------------------------------------------------! |
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| 186 | |
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| 187 | !------------------------------! |
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| 188 | ! ! |
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| 189 | ! SNOW redistribution ! |
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| 190 | ! ! |
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| 191 | !------------------------------! |
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| 192 | |
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| 193 | ! |
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| 194 | !------------------------------------------------------------------------------| |
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| 195 | ! S-1) 'Old' snow cotes |
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| 196 | !------------------------------------------------------------------------------| |
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| 197 | ! |
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| 198 | ! |
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| 199 | ! by 'old', I mean that layers coming from accretion are included, and |
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| 200 | ! that surface layers which were partly melted are reduced ... |
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| 201 | |
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| 202 | ! indexes of the vectors |
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| 203 | ntop0 = 1 |
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| 204 | nbot0 = nlay_s+1-snind+(1-snicind)*snicswi |
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| 205 | |
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| 206 | ! cotes of the top of the layers |
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| 207 | zm0(0) = 0.0 |
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| 208 | DO layer = 1, nbot0-1 |
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| 209 | limsum = snswi*(layer+snind-1) + (1-snswi)*(layer-1) |
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| 210 | limsum = MIN( limsum , nlay_s ) |
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| 211 | zm0(layer) = dh_s_tot(ji) |
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| 212 | DO layer_a = 1, limsum |
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| 213 | zm0(layer) = zm0(layer) + deltaz_s_phy(layer_a) |
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| 214 | END DO |
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| 215 | END DO |
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| 216 | |
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| 217 | zm0(nbot0) = dh_s_tot(ji) - snicswi*dh_snowice(ji) |
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| 218 | DO layer = 1, nlay_s |
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| 219 | zm0(nbot0) = zm0(nbot0) + deltaz_s_phy(layer) |
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| 220 | END DO |
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| 221 | zm0(1) = dh_s_tot(ji)*(1-snswi) + snswi*zm0(1) |
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| 222 | |
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| 223 | ! thicknesses |
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| 224 | DO layer = ntop0, nbot0 |
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| 225 | zthick0(layer) = zm0(layer) - zm0(layer-1) |
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| 226 | END DO |
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| 227 | ! |
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| 228 | !------------------------------------------------------------------------------| |
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| 229 | ! S-2) 'Old' enthalpies |
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| 230 | !------------------------------------------------------------------------------| |
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| 231 | ! |
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| 232 | ! enthalpies |
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| 233 | zqh_s0(1) = rhon * ( cpg * ( tpw - (1 - snswi) * tabqb(ji) - ! fallen snow |
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| 234 | & snswi * t_s_b(ji,1) ) + lfus )* zthick0(1) |
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| 235 | zqt_s_ini = zqt_s_ini + zqh_s0(1) |
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| 236 | |
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| 237 | DO layer = 2, nbot0 ! remaining snow |
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| 238 | limsum = (1-snswi)*(layer-1) + snswi*(layer+snind-1) |
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| 239 | limsum = MIN( limsum, nlay_s ) |
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| 240 | zqh_s0(layer) = rhon*( cpg*(tpw - t_s_b(ji,limsum)) + lfus) |
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| 241 | & *zthick0(layer) |
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| 242 | zswitch = 1.0 - MAX (0.0, SIGN ( 1.0d0, zeps - ht_s_b(ji) ) ) |
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| 243 | zqt_s_ini = zqt_s_ini + ( 1 - snswi ) * zqh_s0(layer) * zswitch |
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| 244 | WRITE(numout,*) 'limsum : ', limsum |
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| 245 | END DO |
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| 246 | zqt_ini = zqt_s_ini |
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| 247 | |
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| 248 | IF ( ln_write ) THEN |
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| 249 | WRITE(numout,*) ' - Snow redistribution ... ' |
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| 250 | WRITE(numout,*) ' ntop0 : ', ntop0 |
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| 251 | WRITE(numout,*) ' nbot0 : ', nbot0 |
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| 252 | WRITE(numout,*) ' zm0 : ', ( zm0(layer), layer = 0, nbot0) |
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| 253 | WRITE(numout,*) ' zqh_s0: ', ( zqh_s0(layer), layer = 1, nbot0) |
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| 254 | WRITE(numout,*) ' q_s_b1: ', q_s_b(ji,1) |
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| 255 | WRITE(numout,*) |
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| 256 | ENDIF |
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| 257 | |
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| 258 | !----------------------------------------- |
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| 259 | ! snow enthalpy lost in sea ice formation |
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| 260 | !----------------------------------------- |
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| 261 | zqsnow = 0.0 |
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| 262 | zdeltah = 0.0 |
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| 263 | |
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| 264 | DO layer = nlay_s, 1, -1 |
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| 265 | zhsnow = MAX(0.0,dh_snowice(ji)-zdeltah) |
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| 266 | zqsnow = zqsnow + q_s_b(ji,layer) * zhsnow |
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| 267 | END DO |
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| 268 | |
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| 269 | ! |
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| 270 | !------------------------------------------------------------------------------| |
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| 271 | ! S-3) New snow grid |
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| 272 | !------------------------------------------------------------------------------| |
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| 273 | ! |
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| 274 | ! indexes of the vectors |
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| 275 | ntop1 = 1 |
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| 276 | nbot1 = nlay_s |
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| 277 | |
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| 278 | ! cotes and thicknesses |
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| 279 | CALL ice_phy_grid( kideb , kiut , nlay_s , ht_s_b(ji), .FALSE., |
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| 280 | & "sno" ) |
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| 281 | ! |
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| 282 | !------------------------------------------------------------------------------| |
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| 283 | ! S-4) New snow enthalpy |
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| 284 | !------------------------------------------------------------------------------| |
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| 285 | ! |
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| 286 | CALL ice_phy_relay( nbot0 , nbot1 , ntop0 , ntop1 , |
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| 287 | & zthick0, deltaz_s_phy, zqh_s0 , zqh_s1 ) |
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| 288 | |
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| 289 | zqt_s_fin = 0.0 ! total heat content |
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| 290 | ! |
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| 291 | !------------------------------------------------------------------------------| |
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| 292 | ! S-5) Recover snow temperature |
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| 293 | !------------------------------------------------------------------------------| |
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| 294 | ! |
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| 295 | WRITE(numout,*) ' Recover snow temperature ' |
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| 296 | WRITE(numout,*) ' nlay_s : ', nlay_s |
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| 297 | WRITE(numout,*) ' ji : ', ji |
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| 298 | WRITE(numout,*) ' ht_s_b : ', ht_s_b(ji) |
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| 299 | WRITE(numout,*) ' tpw : ', tpw |
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| 300 | WRITE(numout,*) ' rhon : ', rhon |
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| 301 | DO layer = 1, nlay_s |
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| 302 | isnow = INT( 1.0 - MAX( 0.0 , SIGN( 1.0d0, - ht_s_b(ji) ) )) |
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| 303 | WRITE(numout,*) ' isnow : ', isnow |
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| 304 | t_s_b(ji,layer) = isnow * ( tpw - ( zqh_s1(layer) / rhon / |
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| 305 | & MAX( deltaz_s_phy(layer) , zeps ) - lfus ) |
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| 306 | & / cpg ) + |
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| 307 | & ( 1.0 - isnow ) * tpw |
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| 308 | WRITE(numout,*) ' zqh_s1: ', zqh_s1(layer) |
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| 309 | WRITE(numout,*) ' deltaz_s_phy : ', deltaz_s_phy(layer) |
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| 310 | WRITE(numout,*) ' zeps : ', zeps |
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| 311 | WRITE(numout,*) ' lfus : ', lfus |
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| 312 | WRITE(numout,*) ' cpg : ', cpg |
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| 313 | WRITE(numout,*) ' t_s_b : ', t_s_b(ji,layer) |
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| 314 | zqt_s_fin = zqt_s_fin + zqh_s1(layer) |
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| 315 | q_s_b(ji,layer) = isnow * zqh_s1(layer) / |
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| 316 | & MAX( deltaz_s_phy(layer) , zeps ) |
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| 317 | END DO |
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| 318 | WRITE(numout,*) ' t_s_b : ', t_s_b(ji,1) |
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| 319 | zqt_fin = zqt_s_fin |
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| 320 | |
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| 321 | IF ( ln_write ) THEN |
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| 322 | WRITE(numout,*) ' - Heat conservation, ice_th_remap , snow ' |
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| 323 | WRITE(numout,*) ' zqt_s_fin : ', zqt_s_fin |
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| 324 | WRITE(numout,*) ' zqt_s_ini : ', zqt_s_ini |
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| 325 | WRITE(numout,*) ' TS1. zqt_s_fin - zqt_s_ini : ', |
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| 326 | & zqt_s_fin - zqt_s_ini |
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| 327 | WRITE(numout,*) |
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| 328 | ENDIF |
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| 329 | |
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| 330 | !------------------------------------------------------------------------------! |
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| 331 | |
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| 332 | !------------------------------! |
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| 333 | ! ! |
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| 334 | ! ICE redistribution ! |
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| 335 | ! ! |
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| 336 | !------------------------------! |
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| 337 | |
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| 338 | !------------------------------------------------------------------------------! |
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| 339 | |
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| 340 | ! |
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| 341 | !------------------------------------------------------------------------------! |
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| 342 | ! I-1) Old ice grid ! |
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| 343 | !------------------------------------------------------------------------------! |
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| 344 | ! |
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| 345 | ! indexes of the vectors |
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| 346 | ntop0 = 1 |
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| 347 | nbot0 = MAX(1, MIN( nlay_i + 1 - icboind + (1-icsuind)*icsuswi |
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| 348 | & + snicswi, nlay_i + 2 ) ) |
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| 349 | |
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| 350 | ! cotes of the top of the layers |
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| 351 | zm0(0) = 0.0 |
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| 352 | DO layer = 1, nbot0-1 |
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| 353 | limsum = ((icsuswi*(icsuind+layer-1) + (1-icsuswi)*layer))* |
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| 354 | & (1-snicswi) + (layer-1)*snicswi |
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| 355 | zm0(layer)= icsuswi*dh_i_surf(ji) + snicswi*dh_snowice(ji) |
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| 356 | DO layer_a = 1, limsum |
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| 357 | zm0(layer) = zm0(layer) + deltaz_i_phy(layer_a) |
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| 358 | END DO |
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| 359 | END DO |
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| 360 | |
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| 361 | zm0(nbot0) = icsuswi*dh_i_surf(ji) + snicswi*dh_snowice(ji) + |
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| 362 | & dh_i_bott(ji) |
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| 363 | DO layer = 1, nlay_i |
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| 364 | zm0(nbot0) = zm0(nbot0) + deltaz_i_phy(layer) |
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| 365 | END DO |
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| 366 | zm0(1) = snicswi*dh_snowice(ji) + (1-snicswi)*zm0(1) |
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| 367 | |
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| 368 | ! thicknesses |
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| 369 | DO layer = ntop0, nbot0 |
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| 370 | zthick0(layer) = zm0(layer) - zm0(layer-1) |
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| 371 | END DO |
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| 372 | |
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| 373 | IF ( ln_write ) THEN |
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| 374 | WRITE(numout,*) ' - Ice redistribution ... ' |
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| 375 | WRITE(numout,*) ' ntop0 : ', ntop0 |
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| 376 | WRITE(numout,*) ' nbot0 : ', nbot0 |
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| 377 | WRITE(numout,*) ' zm0 : ', ( zm0(layer), layer = 0, nbot0) |
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| 378 | WRITE(numout,*) ' zthick0: ', ( zthick0(layer), layer = ntop0, |
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| 379 | & nbot0) |
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| 380 | ENDIF |
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| 381 | ! |
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| 382 | !------------------------------------------------------------------------------| |
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| 383 | ! I-2) Old ice heat content | |
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| 384 | !------------------------------------------------------------------------------| |
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| 385 | ! |
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| 386 | !------------------------- |
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| 387 | ! sources of heat content |
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| 388 | !------------------------- |
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| 389 | !- new ice |
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| 390 | tmelts = - tmut * s_i_new + tpw |
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| 391 | zqh_i_new = rhog * ( cpg * ( tmelts - t_bo_b(ji) ) |
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| 392 | & + lfus * ( 1.0 - ( tmelts - tpw ) / |
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| 393 | & ( t_bo_b(ji) - tpw ) ) - cpw * ( tmelts - tpw ) ) |
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| 394 | & * zthick0(nbot0) |
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| 395 | |
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| 396 | !- snow ice |
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| 397 | zqh_i_sni = rho0 * cpw * ( tpw - t_bo_b(ji) ) * dh_snowice(ji) * |
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| 398 | & ( rhog - rhon ) / rhog * snicswi ! generally positive |
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| 399 | fsnic = - zqh_i_sni / ddtb |
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| 400 | zqh_i_sni = zqsnow + zqh_i_sni |
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| 401 | |
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| 402 | !---------------------- |
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| 403 | ! sea ice heat content |
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| 404 | !---------------------- |
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| 405 | zqh_i0(:) = 0.0 |
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| 406 | !- internal ice layers |
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| 407 | DO layer = ntop0, nbot0 |
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| 408 | limsum = MAX( 1 , MIN( snicswi*(layer-1) |
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| 409 | & + icsuswi * ( layer - 1 + icsuind ) |
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| 410 | & + ( 1 - icsuswi ) * ( 1 - snicswi ) * layer, nlay_i ) ) |
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| 411 | zqh_i0(layer) = q_i_b(ji,limsum) * zthick0(layer) |
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| 412 | WRITE(numout,*) ' limsum : ', limsum, ' layer : ', layer |
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| 413 | END DO |
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| 414 | |
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| 415 | !- boundary values |
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| 416 | zqh_i0(1) = snicswi * zqh_i_sni + ( 1 - snicswi ) * zqh_i0(1) |
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| 417 | zqh_i0(nbot0) = ( 1 - icboswi ) * zqh_i0(nbot0) + |
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| 418 | & icboswi * zqh_i_new |
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| 419 | |
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| 420 | IF ( ln_write ) THEN |
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| 421 | WRITE(numout,*) ' zqh_i_new: ', zqh_i_new |
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| 422 | WRITE(numout,*) ' zqh_i_sni: ', zqh_i_sni |
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| 423 | WRITE(numout,*) ' zqh_i0: ', ( zqh_i0(layer), layer = ntop0, |
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| 424 | & nbot0) |
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| 425 | ENDIF |
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| 426 | |
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| 427 | DO layer = ntop0, nbot0 |
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| 428 | zqt_i_ini = zqt_i_ini + zqh_i0(layer) |
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| 429 | END DO |
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| 430 | |
|---|
| 431 | zqt_ini = zqt_ini + zqt_i_ini ! includes zqsnic and zqsnow |
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| 432 | |
|---|
| 433 | ! |
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| 434 | !------------------------------------------------------------------------------| |
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| 435 | ! I-3) Old ice salt content | |
|---|
| 436 | !------------------------------------------------------------------------------| |
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| 437 | ! |
|---|
| 438 | ! basal new ice salt content |
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| 439 | zsh_i_new = rn_e_newice * s_w * MAX ( dh_i_bott(ji), 0.0 ) |
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| 440 | ! snow ice salt content |
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| 441 | s_i_snic = ( rhog - rhon ) / rhog * s_w * |
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| 442 | & frtr_si_phy ! snow ice salinity |
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| 443 | zsh_i_sni = s_i_snic * dh_snowice(ji) |
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| 444 | |
|---|
| 445 | IF ( ln_write ) THEN |
|---|
| 446 | WRITE(numout,*) ' Salt sources : ' |
|---|
| 447 | WRITE(numout,*) ' ~~~~~~~~~~~~~~ ' |
|---|
| 448 | WRITE(numout,*) ' zsh_i_new : ', zsh_i_new |
|---|
| 449 | WRITE(numout,*) ' zsh_i_sni : ', zsh_i_sni |
|---|
| 450 | ENDIF |
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| 451 | |
|---|
| 452 | zsh_i0(:) = 0.0 |
|---|
| 453 | |
|---|
| 454 | DO layer = ntop0, nbot0 |
|---|
| 455 | limsum = snicswi*(layer-1) + icsuswi*(layer-1+icsuind) |
|---|
| 456 | & + (1-icsuswi)*(1-snicswi)*layer |
|---|
| 457 | limsum = MAX(1,MIN(snicswi*(layer-1) + icsuswi*(layer-1 |
|---|
| 458 | & + icsuind) |
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| 459 | & + (1-icsuswi)*(1-snicswi)*layer, nlay_i)) |
|---|
| 460 | zsh_i0(layer) = s_i_b(ji,limsum)*zthick0(layer) |
|---|
| 461 | END DO |
|---|
| 462 | |
|---|
| 463 | zsh_i0(nbot0) = (1-icboswi)* zsh_i0(nbot0) + icboswi * zsh_i_new |
|---|
| 464 | zsh_i0(1) = snicswi * zsh_i_sni + ( 1 - snicswi ) * zsh_i0(1) |
|---|
| 465 | |
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| 466 | ! z_ms_i_ini = 0.0 |
|---|
| 467 | ! DO layer = ntop0, nbot0 |
|---|
| 468 | ! z_ms_i_ini = z_ms_i_ini + zsh_i0(layer) |
|---|
| 469 | ! END DO |
|---|
| 470 | |
|---|
| 471 | IF ( ln_write ) THEN |
|---|
| 472 | WRITE(numout,*) ' frtr_si_phy:', frtr_si_phy |
|---|
| 473 | WRITE(numout,*) ' s_w : ', s_w |
|---|
| 474 | WRITE(numout,*) ' s_i_snic : ', s_i_snic |
|---|
| 475 | WRITE(numout,*) ' zsh_i0 : ', zsh_i0(ntop0:nbot0) |
|---|
| 476 | WRITE(numout,*) |
|---|
| 477 | ENDIF |
|---|
| 478 | ! |
|---|
| 479 | !------------------------------------------------------------------------------| |
|---|
| 480 | ! I-4) New ice profile | |
|---|
| 481 | !------------------------------------------------------------------------------| |
|---|
| 482 | ! |
|---|
| 483 | ! indexes of the vectors |
|---|
| 484 | ntop1 = 1 |
|---|
| 485 | nbot1 = nlay_i |
|---|
| 486 | |
|---|
| 487 | ! cotes and thicknesses |
|---|
| 488 | CALL ice_phy_grid( kideb , kiut , nlay_i , ht_i_b(ji), .FALSE., |
|---|
| 489 | & "ice" ) |
|---|
| 490 | |
|---|
| 491 | IF ( ln_write ) THEN |
|---|
| 492 | WRITE(numout,*) ' z_i_phy : ', ( z_i_phy(layer), |
|---|
| 493 | & layer = ntop1, nbot1 ) |
|---|
| 494 | WRITE(numout,*) ' deltaz_i_phy : ', ( deltaz_i_phy(layer), |
|---|
| 495 | & layer = ntop1, nbot1 ) |
|---|
| 496 | ENDIF |
|---|
| 497 | ! |
|---|
| 498 | !------------------------------------------------------------------------------| |
|---|
| 499 | ! I-5) Redistribute ice heat content | |
|---|
| 500 | !------------------------------------------------------------------------------| |
|---|
| 501 | ! |
|---|
| 502 | ! Remapping ice enthalpy |
|---|
| 503 | CALL ice_phy_relay( nbot0 , nbot1 , ntop0 , ntop1 , |
|---|
| 504 | & zthick0, deltaz_i_phy, zqh_i0 , zqh_i1 ) |
|---|
| 505 | |
|---|
| 506 | IF ( ln_write ) THEN |
|---|
| 507 | WRITE(numout,*) ' zqh_i1 : ',( zqh_i1(layer), layer = ntop1, |
|---|
| 508 | & nbot1) |
|---|
| 509 | WRITE(numout,*) |
|---|
| 510 | ENDIF |
|---|
| 511 | |
|---|
| 512 | DO layer = ntop1, nbot1 |
|---|
| 513 | zqt_i_fin = zqt_i_fin + zqh_i1(layer) |
|---|
| 514 | END DO |
|---|
| 515 | |
|---|
| 516 | zqt_fin = zqt_fin + zqt_i_fin ! includes zqsnic and zqsnow |
|---|
| 517 | ! |
|---|
| 518 | !------------------------------------------------------------------------------| |
|---|
| 519 | ! I-6) Redistribute ice salt content | |
|---|
| 520 | !------------------------------------------------------------------------------| |
|---|
| 521 | ! |
|---|
| 522 | CALL ice_phy_relay( nbot0 , nbot1 , ntop0 , ntop1 , |
|---|
| 523 | & zthick0, deltaz_i_phy, zsh_i0 , zsh_i1 ) |
|---|
| 524 | IF ( ln_write ) THEN |
|---|
| 525 | WRITE(numout,*) ' zsh_i1 : ', zsh_i1(ntop0:nbot0) |
|---|
| 526 | WRITE(numout,*) |
|---|
| 527 | ENDIF |
|---|
| 528 | |
|---|
| 529 | ! |
|---|
| 530 | !------------------------------------------------------------------------------| |
|---|
| 531 | ! I-7) Heat conservation test | |
|---|
| 532 | !------------------------------------------------------------------------------| |
|---|
| 533 | ! |
|---|
| 534 | IF ( ln_write ) THEN |
|---|
| 535 | WRITE(numout,*) ' - Heat conservation, ice_th_remap , |
|---|
| 536 | & sea ice... ' |
|---|
| 537 | WRITE(numout,*) ' zqt_i_fin : ', zqt_i_fin |
|---|
| 538 | WRITE(numout,*) ' zqt_i_ini : ', zqt_i_ini |
|---|
| 539 | WRITE(numout,*) ' TI1. zqt_i_fin - zqt_i_ini : ', |
|---|
| 540 | & zqt_i_fin - zqt_i_ini |
|---|
| 541 | WRITE(numout,*) |
|---|
| 542 | WRITE(numout,*) ' - Heat conservation, total ... ' |
|---|
| 543 | WRITE(numout,*) ' zqt_ini : ', zqt_ini |
|---|
| 544 | WRITE(numout,*) ' zqt_fin : ', zqt_fin |
|---|
| 545 | WRITE(numout,*) ' zqt_fin-zqt_ini : ', zqt_fin-zqt_ini |
|---|
| 546 | ENDIF |
|---|
| 547 | ! |
|---|
| 548 | !------------------------------------------------------------------------------| |
|---|
| 549 | ! I-8) Recover energy of melting, salinity and temperature | |
|---|
| 550 | !------------------------------------------------------------------------------| |
|---|
| 551 | ! |
|---|
| 552 | DO layer = 1, nlay_i |
|---|
| 553 | q_i_b(ji,layer) = zqh_i1(layer) / |
|---|
| 554 | & MAX( deltaz_i_phy(layer) , zeps ) |
|---|
| 555 | END DO |
|---|
| 556 | |
|---|
| 557 | DO layer = 1, nlay_i |
|---|
| 558 | s_i_b(ji,layer) = zsh_i1(layer) / MAX( deltaz_i_phy(layer) , |
|---|
| 559 | & zeps ) |
|---|
| 560 | END DO |
|---|
| 561 | |
|---|
| 562 | DO layer = 1, nlay_i |
|---|
| 563 | tmelts = -tmut*s_i_b(ji,layer) + tpw |
|---|
| 564 | aaa = cpg |
|---|
| 565 | bbb = (cpw-cpg)*(tmelts-tpw) + q_i_b(ji,layer)/ rhog |
|---|
| 566 | & - lfus |
|---|
| 567 | ccc = lfus * (tmelts-tpw) |
|---|
| 568 | discrim = SQRT( bbb*bbb - 4.0*aaa*ccc ) |
|---|
| 569 | t_i_b(ji,layer) = tpw + (- bbb - discrim) / ( 2.0*aaa ) |
|---|
| 570 | END DO |
|---|
| 571 | ! |
|---|
| 572 | !------------------------------------------------------------------------------| |
|---|
| 573 | ! I-9) Salt conservation test | |
|---|
| 574 | !------------------------------------------------------------------------------| |
|---|
| 575 | ! |
|---|
| 576 | CALL ice_sal_column(kideb,kiut,z_ms_i_fin,s_i_b(ji,1:nlay_i), |
|---|
| 577 | & deltaz_i_phy, nlay_i, .FALSE.) |
|---|
| 578 | IF ( ln_write ) WRITE(numout,*) ' z_ms_i_fin : ', |
|---|
| 579 | & z_ms_i_fin |
|---|
| 580 | |
|---|
| 581 | dms_i = z_ms_i_fin / 1000. - dms_i ! 2nd step of computation of the change in mass of salt in sea ice |
|---|
| 582 | |
|---|
| 583 | ! Flux due to bottom and snow ice formation |
|---|
| 584 | zfgrml = zsh_i_new / ddtb |
|---|
| 585 | zfsigr = zsh_i_sni / ddtb |
|---|
| 586 | |
|---|
| 587 | zfgrml = zfgrml + zfmelt |
|---|
| 588 | IF ( ln_write ) THEN |
|---|
| 589 | WRITE(numout,*) ' zfgrml : ', zfgrml |
|---|
| 590 | WRITE(numout,*) ' zfsigr : ', zfsigr |
|---|
| 591 | ENDIF |
|---|
| 592 | |
|---|
| 593 | zerror = 1.0e-9 |
|---|
| 594 | CALL ice_sal_conserv(kideb,kiut,'ice_phy_remap: ',zerror, |
|---|
| 595 | & z_ms_i_ini,z_ms_i_fin, |
|---|
| 596 | & zfgrml, zfsigr, ddtb) |
|---|
| 597 | |
|---|
| 598 | 10 CONTINUE |
|---|
| 599 | |
|---|
| 600 | RETURN |
|---|
| 601 | |
|---|
| 602 | !------------------------------------------------------------------------------- |
|---|
| 603 | ! Fin de la routine ice_th_remap |
|---|
| 604 | END |
|---|
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