[8586] | 1 | MODULE icedyn_rhg |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE icedyn_rhg *** |
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| 4 | !! Sea-Ice dynamics : master routine for rheology |
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| 5 | !!====================================================================== |
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[9604] | 6 | !! history : 4.0 ! 2018 (C. Rousset) Original code |
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[8586] | 7 | !!---------------------------------------------------------------------- |
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[9570] | 8 | #if defined key_si3 |
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[8586] | 9 | !!---------------------------------------------------------------------- |
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[9570] | 10 | !! 'key_si3' SI3 sea-ice model |
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[8586] | 11 | !!---------------------------------------------------------------------- |
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| 12 | !! ice_dyn_rhg : computes ice velocities |
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| 13 | !! ice_dyn_rhg_init : initialization and namelist read |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE phycst ! physical constants |
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| 16 | USE dom_oce ! ocean space and time domain |
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| 17 | USE ice ! sea-ice: variables |
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| 18 | USE icedyn_rhg_evp ! sea-ice: EVP rheology |
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| 19 | USE icectl ! sea-ice: control prints |
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| 20 | ! |
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| 21 | USE in_out_manager ! I/O manager |
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| 22 | USE lib_mpp ! MPP library |
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| 23 | USE lib_fortran ! fortran utilities (glob_sum + no signed zero) |
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| 24 | USE timing ! Timing |
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| 25 | |
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| 26 | IMPLICIT NONE |
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| 27 | PRIVATE |
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| 28 | |
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| 29 | PUBLIC ice_dyn_rhg ! called by icestp.F90 |
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| 30 | PUBLIC ice_dyn_rhg_init ! called by icestp.F90 |
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| 31 | |
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| 32 | INTEGER :: nice_rhg ! choice of the type of rheology |
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| 33 | ! ! associated indices: |
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| 34 | INTEGER, PARAMETER :: np_rhgEVP = 1 ! EVP rheology |
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| 35 | !! INTEGER, PARAMETER :: np_rhgEAP = 2 ! EAP rheology |
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| 36 | |
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| 37 | ! ** namelist (namrhg) ** |
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| 38 | LOGICAL :: ln_rhg_EVP ! EVP rheology |
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| 39 | ! |
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| 40 | !! * Substitutions |
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| 41 | # include "vectopt_loop_substitute.h90" |
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| 42 | !!---------------------------------------------------------------------- |
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[9598] | 43 | !! NEMO/ICE 4.0 , NEMO Consortium (2018) |
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[10069] | 44 | !! $Id$ |
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[10413] | 45 | !! Software governed by the CeCILL licence (./LICENSE) |
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[8586] | 46 | !!---------------------------------------------------------------------- |
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| 47 | CONTAINS |
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| 48 | |
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| 49 | SUBROUTINE ice_dyn_rhg( kt ) |
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| 50 | !!------------------------------------------------------------------- |
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| 51 | !! *** ROUTINE ice_dyn_rhg *** |
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| 52 | !! |
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| 53 | !! ** Purpose : compute ice velocity |
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| 54 | !! |
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| 55 | !! ** Action : comupte - ice velocity (u_ice, v_ice) |
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| 56 | !! - 3 components of the stress tensor (stress1_i, stress2_i, stress12_i) |
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| 57 | !! - shear, divergence and delta (shear_i, divu_i, delta_i) |
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| 58 | !!-------------------------------------------------------------------- |
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| 59 | INTEGER, INTENT(in) :: kt ! ice time step |
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[10911] | 60 | ! |
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| 61 | INTEGER :: jl ! dummy loop indices |
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[8586] | 62 | !!-------------------------------------------------------------------- |
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| 63 | ! controls |
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[9124] | 64 | IF( ln_timing ) CALL timing_start('icedyn_rhg') ! timing |
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| 65 | IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icedyn_rhg', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation |
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[8586] | 66 | ! |
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| 67 | IF( kt == nit000 .AND. lwp ) THEN |
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| 68 | WRITE(numout,*) |
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| 69 | WRITE(numout,*)'ice_dyn_rhg: sea-ice rheology' |
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| 70 | WRITE(numout,*)'~~~~~~~~~~~' |
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| 71 | ENDIF |
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[10911] | 72 | ! |
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| 73 | IF( ln_landfast_home ) THEN !-- Landfast ice parameterization |
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| 74 | tau_icebfr(:,:) = 0._wp |
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| 75 | DO jl = 1, jpl |
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| 76 | WHERE( h_i(:,:,jl) > ht_n(:,:) * rn_depfra ) tau_icebfr(:,:) = tau_icebfr(:,:) + a_i(:,:,jl) * rn_icebfr |
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| 77 | END DO |
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| 78 | ENDIF |
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| 79 | ! |
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| 80 | !--------------! |
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| 81 | !== Rheology ==! |
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| 82 | !--------------! |
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[8586] | 83 | SELECT CASE( nice_rhg ) |
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| 84 | ! !------------------------! |
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| 85 | CASE( np_rhgEVP ) ! Elasto-Viscous-Plastic ! |
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| 86 | ! !------------------------! |
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[8813] | 87 | CALL ice_dyn_rhg_evp( kt, stress1_i, stress2_i, stress12_i, shear_i, divu_i, delta_i ) |
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[8586] | 88 | ! |
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| 89 | END SELECT |
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| 90 | ! |
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| 91 | IF( lrst_ice ) THEN !* write EVP fields in the restart file |
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| 92 | IF( ln_rhg_EVP ) CALL rhg_evp_rst( 'WRITE', kt ) |
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| 93 | ENDIF |
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| 94 | ! |
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| 95 | ! controls |
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[9124] | 96 | IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icedyn_rhg', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation |
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| 97 | IF( ln_ctl ) CALL ice_prt3D ('icedyn_rhg') ! prints |
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| 98 | IF( ln_timing ) CALL timing_stop ('icedyn_rhg') ! timing |
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[8586] | 99 | ! |
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| 100 | END SUBROUTINE ice_dyn_rhg |
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| 101 | |
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[9124] | 102 | |
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[8586] | 103 | SUBROUTINE ice_dyn_rhg_init |
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| 104 | !!------------------------------------------------------------------- |
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| 105 | !! *** ROUTINE ice_dyn_rhg_init *** |
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| 106 | !! |
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| 107 | !! ** Purpose : Physical constants and parameters linked to the ice |
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| 108 | !! dynamics |
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| 109 | !! |
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| 110 | !! ** Method : Read the namdyn_rhg namelist and check the ice-dynamic |
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| 111 | !! parameter values called at the first timestep (nit000) |
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| 112 | !! |
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| 113 | !! ** input : Namelist namdyn_rhg |
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| 114 | !!------------------------------------------------------------------- |
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| 115 | INTEGER :: ios, ioptio ! Local integer output status for namelist read |
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| 116 | !! |
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[8813] | 117 | NAMELIST/namdyn_rhg/ ln_rhg_EVP, ln_aEVP, rn_creepl, rn_ecc , nn_nevp, rn_relast |
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[8586] | 118 | !!------------------------------------------------------------------- |
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| 119 | ! |
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| 120 | REWIND( numnam_ice_ref ) ! Namelist namdyn_rhg in reference namelist : Ice dynamics |
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| 121 | READ ( numnam_ice_ref, namdyn_rhg, IOSTAT = ios, ERR = 901) |
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[11317] | 122 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_rhg in reference namelist' ) |
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[8586] | 123 | REWIND( numnam_ice_cfg ) ! Namelist namdyn_rhg in configuration namelist : Ice dynamics |
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| 124 | READ ( numnam_ice_cfg, namdyn_rhg, IOSTAT = ios, ERR = 902 ) |
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[11317] | 125 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namdyn_rhg in configuration namelist' ) |
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[8586] | 126 | IF(lwm) WRITE ( numoni, namdyn_rhg ) |
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| 127 | ! |
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| 128 | IF(lwp) THEN ! control print |
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| 129 | WRITE(numout,*) |
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| 130 | WRITE(numout,*) 'ice_dyn_rhg_init: ice parameters for ice dynamics ' |
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| 131 | WRITE(numout,*) '~~~~~~~~~~~~~~~' |
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[9169] | 132 | WRITE(numout,*) ' Namelist : namdyn_rhg:' |
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[8586] | 133 | WRITE(numout,*) ' rheology EVP (icedyn_rhg_evp) ln_rhg_EVP = ', ln_rhg_EVP |
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[8813] | 134 | WRITE(numout,*) ' use adaptive EVP (aEVP) ln_aEVP = ', ln_aEVP |
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[8586] | 135 | WRITE(numout,*) ' creep limit rn_creepl = ', rn_creepl |
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| 136 | WRITE(numout,*) ' eccentricity of the elliptical yield curve rn_ecc = ', rn_ecc |
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| 137 | WRITE(numout,*) ' number of iterations for subcycling nn_nevp = ', nn_nevp |
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| 138 | WRITE(numout,*) ' ratio of elastic timescale over ice time step rn_relast = ', rn_relast |
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| 139 | ENDIF |
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| 140 | ! |
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| 141 | ! !== set the choice of ice advection ==! |
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| 142 | ioptio = 0 |
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| 143 | IF( ln_rhg_EVP ) THEN ; ioptio = ioptio + 1 ; nice_rhg = np_rhgEVP ; ENDIF |
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| 144 | !! IF( ln_rhg_EAP ) THEN ; ioptio = ioptio + 1 ; nice_rhg = np_rhgEAP ; ENDIF |
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| 145 | IF( ioptio /= 1 ) CALL ctl_stop( 'ice_dyn_rhg_init: choose one and only one ice rheology' ) |
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| 146 | ! |
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[8813] | 147 | IF( ln_rhg_EVP ) CALL rhg_evp_rst( 'READ' ) !* read or initialize all required files |
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[8586] | 148 | ! |
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| 149 | END SUBROUTINE ice_dyn_rhg_init |
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| 150 | |
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| 151 | #else |
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| 152 | !!---------------------------------------------------------------------- |
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[9570] | 153 | !! Default option Empty module NO SI3 sea-ice model |
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[8586] | 154 | !!---------------------------------------------------------------------- |
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| 155 | #endif |
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| 156 | |
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| 157 | !!====================================================================== |
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| 158 | END MODULE icedyn_rhg |
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