[2] | 1 | SUBROUTINE ice_th_glohec(eti,ets,etilayer,kideb,kiut,jl, |
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| 2 | & nlay_s, nlay_i) |
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| 3 | |
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| 4 | !!----------------------------------------------------------------------- |
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| 5 | !! *** ROUTINE ice_th_glohec *** |
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| 6 | !! |
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| 7 | !! ** Purpose : Compute total heat content for each category |
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| 8 | !! Works with 1d vectors only |
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| 9 | !! |
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| 10 | !! history : |
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| 11 | !! 9.9 ! 07-04 (M.Vancoppenolle) original code |
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| 12 | !!----------------------------------------------------------------------- |
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| 13 | !! * Local variables |
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| 14 | |
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| 15 | INCLUDE 'type.com' |
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| 16 | INCLUDE 'para.com' |
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| 17 | INCLUDE 'const.com' |
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| 18 | INCLUDE 'ice.com' |
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| 19 | INCLUDE 'thermo.com' |
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| 20 | |
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| 21 | INTEGER, INTENT(in) :: |
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| 22 | & kideb, kiut, ! bounds for the spatial loop |
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| 23 | & jl ! category number |
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| 24 | |
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| 25 | REAL(8), DIMENSION (nbpt,jpl), INTENT(out) :: |
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| 26 | & eti, ets ! vertically-summed heat content for ice /snow |
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| 27 | |
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| 28 | REAL(8), DIMENSION (nbpt,maxnlay), INTENT(out) :: |
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| 29 | & etilayer ! heat content for ice layers |
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| 30 | |
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| 31 | REAL(8) :: |
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| 32 | & zdes, ! snow heat content increment (dummy) |
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| 33 | & zeps ! very small value (1.e-10) |
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| 34 | |
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| 35 | INTEGER :: |
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| 36 | & ji,jj,jk ! loop indices |
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| 37 | |
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| 38 | !!----------------------------------------------------------------------- |
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| 39 | eti(:,:) = 0.0 |
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| 40 | ets(:,:) = 0.0 |
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| 41 | zeps = 1.0e-10 |
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| 42 | |
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| 43 | ! total q over all layers, ice [J.m-2] |
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| 44 | DO jk = 1, nlay_i |
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| 45 | DO ji = kideb, kiut |
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| 46 | etilayer(ji,jk) = q_i_b(ji,jk) |
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| 47 | & * ht_i_b(ji) / nlay_i |
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| 48 | eti(ji,jl) = eti(ji,jl) + etilayer(ji,jk) |
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| 49 | END DO |
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| 50 | END DO |
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| 51 | |
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| 52 | ! total q over all layers, snow [J.m-2] |
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| 53 | DO ji = kideb, kiut |
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| 54 | zdes = q_s_b(ji,1) * ht_s_b(ji) / nlay_s |
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| 55 | ets(ji,jl) = ets(ji,jl) + zdes |
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| 56 | END DO |
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| 57 | |
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| 58 | RETURN |
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| 59 | !------------------------------------------------------------------------------ |
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| 60 | END SUBROUTINE ice_th_glohec |
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| 61 | |
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| 62 | !============================================================================== |
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| 63 | |
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| 64 | SUBROUTINE ice_th_enmelt(kideb, kiut, nlay_s, nlay_i) |
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| 65 | !!----------------------------------------------------------------------- |
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| 66 | !! *** ROUTINE ice_th_enmelt *** |
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| 67 | !! |
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| 68 | !! ** Purpose : Computes sea ice energy of melting q_i (J.m-3) |
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| 69 | !! |
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| 70 | !! ** Method : Formula (Bitz and Lipscomb, 1999) |
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| 71 | !! |
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| 72 | !! history : Martin Vancoppenolle, May 2007 |
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| 73 | !!------------------------------------------------------------------- |
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| 74 | |
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| 75 | INCLUDE 'type.com' |
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| 76 | INCLUDE 'para.com' |
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| 77 | INCLUDE 'const.com' |
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| 78 | INCLUDE 'ice.com' |
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| 79 | INCLUDE 'thermo.com' |
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| 80 | |
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| 81 | REAL(8) :: !: goes to trash |
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| 82 | & ztmelts , !: sea ice freezing point in K |
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| 83 | & zeps |
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| 84 | |
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| 85 | INTEGER :: |
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| 86 | & ji, !: spatial loop index |
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| 87 | & jk !: vertical index |
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| 88 | |
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| 89 | LOGICAL :: |
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| 90 | & ln_write = .FALSE. |
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| 91 | |
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| 92 | !!------------------------------------------------------------------- |
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| 93 | zeps = 1.0e-10 |
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| 94 | IF ( ln_write ) THEN |
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| 95 | WRITE(numout,*) ' ** ice_th_enmelt : ' |
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| 96 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~ ' |
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| 97 | WRITE(numout,*) |
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| 98 | WRITE(numout,*) ' kideb : ', kideb |
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| 99 | WRITE(numout,*) ' kiut : ', kiut |
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| 100 | WRITE(numout,*) ' nlay_s: ', nlay_s |
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| 101 | WRITE(numout,*) ' nlay_i: ', nlay_i |
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| 102 | ENDIF |
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| 103 | |
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| 104 | ! Sea ice energy of melting |
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| 105 | DO jk = 1, nlay_i |
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| 106 | DO ji = kideb, kiut |
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| 107 | ztmelts = - tmut * s_i_b(ji,jk) + tpw |
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| 108 | q_i_b(ji,jk) = rhog * ( cpg * ( ztmelts - t_i_b(ji,jk) ) |
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| 109 | & + lfus*( 1.0 - (ztmelts-tpw) / |
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| 110 | & MIN((t_i_b(ji,jk)-tpw),-zeps) ) |
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| 111 | & - cpw * ( ztmelts-tpw ) ) |
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| 112 | END DO !ji |
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| 113 | END DO !jk |
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| 114 | |
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| 115 | ! Snow energy of melting |
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| 116 | DO jk = 1, nlay_s |
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| 117 | DO ji = kideb,kiut |
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| 118 | q_s_b(ji,jk) = rhon * ( cpg * ( tpw - t_s_b(ji,jk) ) + |
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| 119 | & lfus ) |
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| 120 | END DO !ji |
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| 121 | END DO !jk |
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| 122 | |
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| 123 | WRITE(numout,*) |
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| 124 | |
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| 125 | RETURN |
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| 126 | !------------------------------------------------------------------------------ |
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| 127 | END SUBROUTINE ice_th_enmelt |
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| 128 | |
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| 129 | !============================================================================== |
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| 130 | |
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| 131 | SUBROUTINE ice_th_con_dif(kideb,kiut,nlay_s,nlay_i,jl) |
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| 132 | !!----------------------------------------------------------------------- |
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| 133 | !! *** ROUTINE ice_th_con_dif *** |
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| 134 | !! |
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| 135 | !! ** Purpose : Test energy conservation after heat diffusion |
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| 136 | !! |
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| 137 | !! history : |
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| 138 | !! 9.9 ! 07-04 (M.Vancoppenolle) original code |
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| 139 | !!------------------------------------------------------------------- |
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| 140 | !! * Local variables |
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| 141 | |
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| 142 | INCLUDE 'type.com' |
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| 143 | INCLUDE 'para.com' |
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| 144 | INCLUDE 'const.com' |
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| 145 | INCLUDE 'ice.com' |
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| 146 | INCLUDE 'thermo.com' |
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| 147 | |
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| 148 | REAL(8) :: !: ! goes to trash |
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| 149 | & meance, !: mean conservation error |
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| 150 | & max_cons_err, !: maximum tolerated conservation error |
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| 151 | & max_surf_err !: maximum tolerated surface error |
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| 152 | |
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| 153 | INTEGER :: |
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| 154 | & numce !: number of points for which conservation |
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| 155 | ! is violated |
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| 156 | INTEGER :: |
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| 157 | & ji,jj,jk, !: loop indices |
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| 158 | & zji, zjj |
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| 159 | |
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| 160 | LOGICAL :: |
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| 161 | & l_write |
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| 162 | !!--------------------------------------------------------------------- |
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| 163 | |
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| 164 | max_cons_err = 0.1 |
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| 165 | max_surf_err = 0.001 |
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| 166 | l_write = .TRUE. |
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| 167 | |
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| 168 | IF ( l_write ) THEN |
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| 169 | WRITE(numout,*) ' ** ice_th_con_dif : ' |
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| 170 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~ ' |
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| 171 | ENDIF |
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| 172 | |
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| 173 | !-------------------------- |
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| 174 | ! 1) Increment of energy |
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| 175 | !-------------------------- |
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| 176 | ! vertically integrated |
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| 177 | DO ji = kideb, kiut |
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| 178 | dq_i(ji,jl) = qt_i_fin(ji,jl) - qt_i_in(ji,jl) |
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| 179 | & + qt_s_fin(ji,jl) - qt_s_in(ji,jl) |
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| 180 | END DO |
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| 181 | |
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| 182 | ! layer by layer |
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| 183 | DO ji = kideb, kiut |
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| 184 | DO jk = 1, nlay_i |
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| 185 | dq_i_layer(ji,jk) = q_i_layer_fin(ji,jk) - |
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| 186 | & q_i_layer_in(ji,jk) |
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| 187 | END DO |
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| 188 | END DO |
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| 189 | |
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| 190 | !------------------------------------------- |
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| 191 | ! 2) Atmospheric heat flux, ice heat budget |
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| 192 | !------------------------------------------- |
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| 193 | |
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| 194 | DO ji = kideb, kiut |
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| 195 | fatm(ji,jl) = ab(ji)*fsolgb(ji) + fratsb(ji) |
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| 196 | & + fcsb(ji) + fleb(ji) |
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| 197 | sum_fluxq(ji,jl) = fc_su(ji) - fc_bo_i(ji) |
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| 198 | & + fsolgb(ji)*(1-ab(ji)) - ftroce |
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| 199 | END DO |
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| 200 | |
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| 201 | IF ( l_write ) THEN |
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| 202 | DO ji = kideb, kiut |
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| 203 | WRITE(numout,*) ' fc_su : ', fc_su(ji) |
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| 204 | WRITE(numout,*) ' fc_bo_i : ', fc_bo_i(ji) |
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| 205 | WRITE(numout,*) ' fsol*io : ', fsolgb(ji)*(1.-ab(ji)) |
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| 206 | WRITE(numout,*) ' ftroce : ', ftroce |
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| 207 | END DO |
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| 208 | ENDIF |
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| 209 | |
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| 210 | !----------------------- |
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| 211 | ! 3) Conservation error |
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| 212 | !----------------------- |
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| 213 | DO ji = kideb, kiut |
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| 214 | cons_error(ji,jl) = ABS( dq_i(ji,jl) / ddtb + |
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| 215 | & sum_fluxq(ji,jl) ) |
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| 216 | END DO |
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| 217 | |
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| 218 | numce = 0 |
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| 219 | meance = 0.0 |
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| 220 | DO ji = kideb, kiut |
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| 221 | IF ( cons_error(ji,jl) .GT. max_cons_err ) THEN |
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| 222 | numce = numce + 1 |
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| 223 | meance = meance + cons_error(ji,jl) |
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| 224 | ENDIF |
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| 225 | IF (numce .GT. 0 ) meance = meance / numce |
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| 226 | |
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| 227 | IF ( cons_error(ji,jl) .GT. max_cons_err ) THEN |
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| 228 | WRITE(numout,*) ' Diffusion of heat - large cons. error ' |
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| 229 | WRITE(numout,*) ' Maximum tolerated conservation error : ', |
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| 230 | & max_cons_err |
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| 231 | WRITE(numout,*) ' Thickness category : ', jl |
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| 232 | WRITE(numout,*) ' DIF Mean conservation error ', |
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| 233 | & meance, numit |
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| 234 | ENDIF |
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| 235 | |
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| 236 | ENDDO |
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| 237 | |
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| 238 | !--------------------------------------------------------- |
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| 239 | ! 4) Surface error due to imbalance between Fatm and Fcsu |
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| 240 | !--------------------------------------------------------- |
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| 241 | numce = 0.0 |
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| 242 | meance = 0.0 |
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| 243 | |
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| 244 | DO ji = kideb, kiut |
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| 245 | surf_error(ji,jl) = ABS ( fatm(ji,jl) - fc_su(ji) ) |
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| 246 | IF ( ( t_su_b(ji) .LT. tpw ) .AND. ( surf_error(ji,jl) .GT. |
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| 247 | & max_surf_err ) ) THEN |
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| 248 | numce = numce + 1 |
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| 249 | meance = meance + surf_error(ji,jl) |
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| 250 | ENDIF |
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| 251 | IF (numce .GT. 0 ) meance = meance / numce |
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| 252 | |
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| 253 | IF ( ( t_su_b(ji) .LT. tpw ) .AND. ( surf_error(ji,jl) .GT. |
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| 254 | & max_surf_err ) ) THEN |
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| 255 | WRITE(numout,*) ' Diffusion of heat - large surface error ' |
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| 256 | WRITE(numout,*) ' Surf_error : ', surf_error(1,jl), |
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| 257 | & ' (W/m2) ' |
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| 258 | WRITE(numout,*) ' Maximum tolerated surface error : ', |
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| 259 | & max_surf_err |
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| 260 | WRITE(numout,*) ' Thickness category : ', jl |
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| 261 | WRITE(numout,*) ' t_su_b: ', t_su_b(ji) |
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| 262 | WRITE(numout,*) ' t_s_b : ', ( t_s_b(ji,layer), |
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| 263 | & layer = 1, nlay_s ) |
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| 264 | WRITE(numout,*) ' t_i_b : ', ( t_i_b(ji,layer), |
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| 265 | & layer = 1, nlay_i ) |
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| 266 | ENDIF |
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| 267 | |
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| 268 | ENDDO |
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| 269 | |
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| 270 | !------------------- |
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| 271 | ! 5) Layer by layer |
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| 272 | !------------------- |
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| 273 | IF ( l_write ) THEN |
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| 274 | WRITE(numout,*) |
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| 275 | WRITE(numout,*) ' Layer by layer ... ' |
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| 276 | |
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| 277 | DO ji = kideb, kiut |
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| 278 | WRITE(numout,*) ' T_su : ', t_su_b(ji) |
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| 279 | WRITE(numout,*) ' *** Snow *** h_s = ', |
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| 280 | & ht_s_b(ji) |
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| 281 | |
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| 282 | IF ( ht_s_b(ji) .GT. 0.0 ) THEN |
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| 283 | zdqs = ( qt_s_fin(ji,jl) - qt_s_in(ji,jl) ) / ddtb |
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| 284 | WRITE(numout,*) ' Conservation error (W/m2): ', |
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| 285 | & ABS( zdqs + fc_s(ji,0) - |
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| 286 | & fc_s(ji,1) + radab_s(1) ) |
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| 287 | ENDIF |
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| 288 | END DO |
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| 289 | |
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| 290 | DO ji = kideb, kiut |
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| 291 | WRITE(numout,*) ' *** Ice *** h_i = ', ht_i_b(ji) |
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| 292 | DO jk = 1, nlay_i |
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| 293 | WRITE(numout,*) ' LAYER : ', jk |
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| 294 | WRITE(numout,*) ' Conservation error (W/m2): ', |
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| 295 | & ABS( dq_i_layer(ji,jk) / ddtb + fc_i(ji,jk-1) - |
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| 296 | & fc_i(ji,jk) + radab_i(jk) ) !radab_phy_i(jk) + radab_alg_i(jk) ) |
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| 297 | END DO |
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| 298 | END DO |
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| 299 | |
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| 300 | ENDIF |
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| 301 | ! |
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| 302 | !------------------------------------------------------------------------------ |
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| 303 | END SUBROUTINE ice_th_con_dif |
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| 304 | !============================================================================== |
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| 305 | |
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| 306 | SUBROUTINE ice_th_con_dh(kideb,kiut,nlay_s,nlay_i,jl) |
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| 307 | !!----------------------------------------------------------------------- |
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| 308 | !! *** ROUTINE ice_th_con_dh *** |
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| 309 | !! |
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| 310 | !! ** Purpose : Test energy conservation after ice growth and melt |
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| 311 | !! |
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| 312 | !! history : |
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| 313 | !! 9.9 ! 07-04 (M.Vancoppenolle) original code |
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| 314 | !!------------------------------------------------------------------- |
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| 315 | !! * Local variables |
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| 316 | |
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| 317 | INCLUDE 'type.com' |
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| 318 | INCLUDE 'para.com' |
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| 319 | INCLUDE 'const.com' |
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| 320 | INCLUDE 'ice.com' |
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| 321 | INCLUDE 'thermo.com' |
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| 322 | |
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| 323 | REAL(8) :: !: ! goes to trash |
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| 324 | & meance, !: mean conservation error |
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| 325 | & max_cons_err, !: maximum tolerated conservation error |
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| 326 | & max_surf_err !: maximum tolerated surface error |
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| 327 | |
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| 328 | INTEGER :: |
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| 329 | & numce !: number of points for which conservation |
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| 330 | ! is violated |
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| 331 | INTEGER :: |
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| 332 | & ji,jj,jk, !: loop indices |
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| 333 | & zji, zjj |
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| 334 | LOGICAL :: |
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| 335 | & l_write |
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| 336 | |
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| 337 | !!--------------------------------------------------------------------- |
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| 338 | |
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| 339 | l_write = .TRUE. |
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| 340 | max_cons_err = 0.1 |
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| 341 | max_surf_err = 0.001 |
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| 342 | |
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| 343 | WRITE(numout,*) ' ** ice_th_con_dh : ' |
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| 344 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~ ' |
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| 345 | |
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| 346 | !------------------------ |
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| 347 | ! 1) Increment of energy |
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| 348 | !------------------------ |
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| 349 | DO ji = kideb, kiut ! vertically integrated |
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| 350 | dq_i(ji,jl) = qt_i_fin(ji,jl) - qt_i_in(ji,jl) |
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| 351 | & + qt_s_fin(ji,jl) - qt_s_in(ji,jl) |
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| 352 | END DO |
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| 353 | |
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| 354 | DO ji = kideb, kiut ! layer by layer |
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| 355 | DO jk = 1, nlay_i |
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| 356 | dq_i_layer(ji,jk) = q_i_layer_fin(ji,jk) - |
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| 357 | & q_i_layer_in(ji,jk) |
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| 358 | END DO |
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| 359 | END DO |
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| 360 | |
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| 361 | !------------------------------------------- |
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| 362 | ! 2) Atmospheric heat flux, ice heat budget |
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| 363 | !------------------------------------------- |
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| 364 | DO ji = kideb, kiut |
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| 365 | fatm(ji,jl) = fsolgb(ji) + fratsb(ji) |
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| 366 | & + fcsb(ji) + fleb(ji) |
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| 367 | sum_fluxq(ji,jl) = fatm(ji,jl) + fbbqb(ji) |
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| 368 | & - ftroce + fsnic + fprec |
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| 369 | END DO |
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| 370 | |
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| 371 | IF ( l_write ) THEN |
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| 372 | DO ji = kideb, kiut |
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| 373 | WRITE(numout,*) ' fsolgb : ' , fsolgb(ji) |
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| 374 | WRITE(numout,*) ' fratsb : ' , fratsb(ji) |
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| 375 | WRITE(numout,*) ' fcsb : ' , fcsb(ji) |
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| 376 | WRITE(numout,*) ' fleb : ' , fleb(ji) |
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| 377 | WRITE(numout,*) |
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| 378 | WRITE(numout,*) ' fatm : ' , fatm(ji,jl) |
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| 379 | WRITE(numout,*) ' fbbqb : ' , fbbqb(ji) |
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| 380 | WRITE(numout,*) ' ftroce : ' , ftroce |
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| 381 | WRITE(numout,*) ' fprec : ' , fprec |
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| 382 | WRITE(numout,*) ' fsnic : ' , fsnic |
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| 383 | WRITE(numout,*) |
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| 384 | WRITE(numout,*) ' sum_fluxq : ', sum_fluxq(ji,jl) |
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| 385 | WRITE(numout,*) ' dq_i : ', dq_i(ji,jl) / ddtb |
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| 386 | END DO |
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| 387 | ENDIF |
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| 388 | |
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| 389 | !----------------------- |
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| 390 | ! 3) Conservation error |
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| 391 | !----------------------- |
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| 392 | IF ( l_write ) WRITE(numout,*) ' kideb, kiut, jl : ', |
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| 393 | & kideb, kiut, jl |
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| 394 | |
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| 395 | DO ji = kideb, kiut |
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| 396 | cons_error(ji,jl) = ABS( dq_i(ji,jl) / ddtb + |
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| 397 | & sum_fluxq(ji,jl) ) |
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| 398 | END DO |
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| 399 | |
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| 400 | numce = 0 |
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| 401 | meance = 0.0 |
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| 402 | DO ji = kideb, kiut |
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| 403 | IF ( cons_error(ji,jl) .GT. max_cons_err ) THEN |
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| 404 | numce = numce + 1 |
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| 405 | meance = meance + cons_error(ji,jl) |
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| 406 | ENDIF |
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| 407 | IF (numce .GT. 0 ) meance = meance / numce |
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| 408 | |
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| 409 | IF ( cons_error(ji,jl) .GT. max_cons_err ) THEN |
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| 410 | WRITE(numout,*) ' Growth and melt - large cons. error ' |
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| 411 | WRITE(numout,*) ' Maximum tolerated conservation error : ', |
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| 412 | & max_cons_err |
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| 413 | WRITE(numout,*) ' DH Mean conservation error ', |
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| 414 | & meance, numit |
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| 415 | ENDIF |
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| 416 | ENDDO |
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| 417 | |
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| 418 | !------------------------------------------------------------------------------ |
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| 419 | END SUBROUTINE ice_th_con_dh |
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