[12062] | 1 | MODULE isf_oce |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbcisf *** |
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| 4 | !! Surface module : compute iceshelf melt and heat flux |
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| 5 | !!====================================================================== |
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| 6 | !! History : 3.2 ! 2011-02 (C.Harris ) Original code isf cav |
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| 7 | !! X.X ! 2006-02 (C. Wang ) Original code bg03 |
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| 8 | !! 3.4 ! 2013-03 (P. Mathiot) Merging + parametrization |
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| 9 | !! 4.1 ! 2019-09 (P. Mathiot) Split param/explicit ice shelf and re-organisation |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! isf : define and allocate ice shelf variables |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | |
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| 16 | USE par_oce , ONLY: jpi, jpj, jpk |
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| 17 | USE in_out_manager, ONLY: wp, jpts ! I/O manager |
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| 18 | USE lib_mpp , ONLY: ctl_stop, mpp_sum ! MPP library |
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| 19 | USE fldread ! read input fields |
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| 20 | |
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| 21 | IMPLICIT NONE |
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| 22 | |
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| 23 | PRIVATE |
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| 24 | |
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| 25 | PUBLIC isf_alloc, isf_alloc_par, isf_alloc_cav, isf_alloc_cpl, isf_dealloc_cpl |
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| 26 | ! |
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| 27 | !------------------------------------------------------- |
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| 28 | ! 0 : namelist parameter |
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| 29 | !------------------------------------------------------- |
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| 30 | ! |
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| 31 | ! 0.1 -------- ice shelf cavity parameter -------------- |
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| 32 | CHARACTER(LEN=256), PUBLIC :: cn_isfdir |
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| 33 | LOGICAL , PUBLIC :: ln_isf |
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| 34 | LOGICAL , PUBLIC :: ln_isfdebug |
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| 35 | ! |
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| 36 | ! 0.2 -------- ice shelf cavity opened namelist parameter ------------- |
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| 37 | LOGICAL , PUBLIC :: ln_isfcav_mlt !: logical for the use of ice shelf parametrisation |
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| 38 | REAL(wp) , PUBLIC :: rn_gammat0 !: temperature exchange coeficient [] |
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| 39 | REAL(wp) , PUBLIC :: rn_gammas0 !: salinity exchange coeficient [] |
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| 40 | REAL(wp) , PUBLIC :: rn_vtide !: tidal background velocity (can be different to what is used in the |
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| 41 | REAL(wp) , PUBLIC :: rn_htbl !: Losch top boundary layer thickness [m] |
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| 42 | REAL(wp) , PUBLIC :: rn_isfload_T !: |
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| 43 | REAL(wp) , PUBLIC :: rn_isfload_S !: |
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| 44 | CHARACTER(LEN=256), PUBLIC :: cn_gammablk !: gamma formulation |
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| 45 | CHARACTER(LEN=256), PUBLIC :: cn_isfcav_mlt !: melt formulation (cavity/param) |
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| 46 | CHARACTER(LEN=256), PUBLIC :: cn_isfload !: ice shelf load computation method |
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| 47 | TYPE(FLD_N) , PUBLIC :: sn_isfcav_fwf !: information about the isf melting file to be read |
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| 48 | ! |
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| 49 | ! 0.3 -------- ice shelf cavity parametrised namelist parameter ------------- |
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| 50 | LOGICAL , PUBLIC :: ln_isfpar_mlt !: logical for the computation of melt inside the cavity |
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| 51 | CHARACTER(LEN=256), PUBLIC :: cn_isfpar_mlt !: melt formulation (cavity/param) |
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| 52 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_fwf !: information about the isf melting file to be read |
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| 53 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_zmax !: information about the grounding line depth file to be read |
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| 54 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_zmin !: information about the calving line depth file to be read |
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| 55 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_Leff !: information about the effective length file to be read |
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| 56 | ! |
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| 57 | ! 0.4 -------- coupling namelist parameter ------------- |
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| 58 | LOGICAL, PUBLIC :: ln_isfcpl !: |
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| 59 | LOGICAL, PUBLIC :: ln_isfcpl_cons !: |
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| 60 | INTEGER, PUBLIC :: nn_drown !: |
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| 61 | ! |
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| 62 | !------------------------------------------------------- |
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| 63 | ! 1 : ice shelf parameter |
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| 64 | !------------------------------------------------------- |
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| 65 | ! |
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| 66 | REAL(wp), PARAMETER, PUBLIC :: rLfusisf = 0.334e6_wp !: latent heat of fusion of ice shelf [J/kg] |
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| 67 | REAL(wp), PARAMETER, PUBLIC :: rcpisf = 2000.0_wp !: specific heat of ice shelf [J/kg/K] |
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| 68 | REAL(wp), PARAMETER, PUBLIC :: rkappa = 0.0_wp !: ISOMIP+ no heat diffusivity through the ice-shelf [m2/s] |
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| 69 | REAL(wp), PARAMETER, PUBLIC :: rhoisf = 920.0_wp !: volumic mass of ice shelf [kg/m3] |
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| 70 | REAL(wp), PARAMETER, PUBLIC :: rtsurf = -20.0 !: surface temperature [C] |
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| 71 | ! |
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| 72 | !------------------------------------------------------- |
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| 73 | ! 2 : ice shelf global variables |
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| 74 | !------------------------------------------------------- |
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| 75 | ! |
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| 76 | ! 2.1 -------- ice shelf cavity parameter -------------- |
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| 77 | LOGICAL , PUBLIC :: l_isfoasis |
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| 78 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: risfload !: ice shelf load |
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| 79 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwfisf_oasis |
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| 80 | ! |
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| 81 | ! 2.2 -------- ice shelf cavity melt namelist parameter ------------- |
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| 82 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: mskisf_cav !: |
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| 83 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: misfkt_cav , misfkb_cav !: |
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| 84 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rhisf_tbl_cav, rfrac_tbl_cav !: |
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| 85 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwfisf_cav , fwfisf_cav_b !: before and now net fwf from the ice shelf [kg/m2/s] |
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| 86 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: risf_cav_tsc , risf_cav_tsc_b !: before and now T & S isf contents [K.m/s & PSU.m/s] |
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| 87 | TYPE(FLD), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: sf_isfcav_fwf !: |
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| 88 | ! |
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| 89 | REAL(wp) , PUBLIC :: risf_lamb1, risf_lamb2, risf_lamb3 ! freezing point linearization coeficient |
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| 90 | ! |
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| 91 | ! 2.3 -------- ice shelf param. melt namelist parameter ------------- |
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| 92 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: mskisf_par !: |
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| 93 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: misfkt_par , misfkb_par !: |
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| 94 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rhisf_tbl_par, rfrac_tbl_par !: |
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| 95 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwfisf_par , fwfisf_par_b !: before and now net fwf from the ice shelf [kg/m2/s] |
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| 96 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: risf_par_tsc , risf_par_tsc_b !: before and now T & S isf contents [K.m/s & PSU.m/s] |
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| 97 | TYPE(FLD), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: sf_isfpar_fwf !: |
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| 98 | ! |
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| 99 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rhisf0_tbl_par !: thickness of tbl (initial value) [m] |
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| 100 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: risfLeff !: |
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| 101 | ! |
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| 102 | ! 2.4 -------- coupling namelist parameter ------------- |
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| 103 | INTEGER , PUBLIC :: nstp_iscpl !: |
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| 104 | REAL(wp), PUBLIC :: rdt_iscpl !: |
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| 105 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: risfcpl_ssh, risfcpl_cons_ssh, risfcpl_cons_ssh_b !: |
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| 106 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: risfcpl_vol, risfcpl_cons_vol, risfcpl_cons_vol_b !: |
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| 107 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: risfcpl_tsc, risfcpl_cons_tsc, risfcpl_cons_tsc_b !: |
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| 108 | ! |
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| 109 | !!---------------------------------------------------------------------- |
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| 110 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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| 111 | !! $Id: sbcisf.F90 10536 2019-01-16 19:21:09Z mathiot $ |
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| 112 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 113 | !!---------------------------------------------------------------------- |
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| 114 | CONTAINS |
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| 115 | |
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| 116 | SUBROUTINE isf_alloc_par() |
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| 117 | !!--------------------------------------------------------------------- |
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| 118 | !! *** ROUTINE isf_alloc_par *** |
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| 119 | !! |
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| 120 | !! ** Purpose : |
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| 121 | !! |
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| 122 | !! ** Method : |
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| 123 | !! |
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| 124 | !!---------------------------------------------------------------------- |
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| 125 | INTEGER :: ierr, ialloc |
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| 126 | !!---------------------------------------------------------------------- |
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| 127 | ierr = 0 ! set to zero if no array to be allocated |
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| 128 | ! |
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| 129 | ALLOCATE(risfLeff(jpi,jpj), STAT=ialloc) |
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| 130 | ierr = ierr + ialloc |
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| 131 | ! |
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| 132 | ALLOCATE(misfkt_par(jpi,jpj), misfkb_par(jpi,jpj), STAT=ialloc ) |
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| 133 | ierr = ierr + ialloc |
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| 134 | ! |
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| 135 | ALLOCATE( rfrac_tbl_par(jpi,jpj), STAT=ialloc) |
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| 136 | ierr = ierr + ialloc |
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| 137 | ! |
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| 138 | ALLOCATE( rhisf_tbl_par(jpi,jpj), rhisf0_tbl_par(jpi,jpj), STAT=ialloc) |
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| 139 | ierr = ierr + ialloc |
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| 140 | ! |
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| 141 | ALLOCATE( mskisf_par(jpi,jpj), STAT=ialloc) |
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| 142 | ierr = ierr + ialloc |
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| 143 | ! |
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| 144 | CALL mpp_sum ( 'isf', ierr ) |
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| 145 | IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'isf: failed to allocate arrays.' ) |
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| 146 | ! |
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| 147 | END SUBROUTINE isf_alloc_par |
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| 148 | |
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| 149 | SUBROUTINE isf_alloc_cav() |
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| 150 | !!--------------------------------------------------------------------- |
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| 151 | !! *** ROUTINE isf_alloc_cav *** |
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| 152 | !! |
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| 153 | !! ** Purpose : |
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| 154 | !! |
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| 155 | !! ** Method : |
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| 156 | !! |
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| 157 | !!---------------------------------------------------------------------- |
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| 158 | INTEGER :: ierr, ialloc |
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| 159 | !!---------------------------------------------------------------------- |
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| 160 | ierr = 0 ! set to zero if no array to be allocated |
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| 161 | ! |
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| 162 | ALLOCATE(misfkt_cav(jpi,jpj), misfkb_cav(jpi,jpj), STAT=ialloc ) |
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| 163 | ierr = ierr + ialloc |
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| 164 | ! |
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| 165 | ALLOCATE( rfrac_tbl_cav(jpi,jpj), STAT=ialloc) |
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| 166 | ierr = ierr + ialloc |
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| 167 | ! |
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| 168 | ALLOCATE( rhisf_tbl_cav(jpi,jpj), STAT=ialloc) |
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| 169 | ierr = ierr + ialloc |
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| 170 | ! |
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| 171 | CALL mpp_sum ( 'isf', ierr ) |
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| 172 | IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'isf: failed to allocate arrays.' ) |
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| 173 | ! |
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| 174 | END SUBROUTINE isf_alloc_cav |
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| 175 | |
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| 176 | SUBROUTINE isf_alloc_cpl() |
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| 177 | !!--------------------------------------------------------------------- |
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| 178 | !! *** ROUTINE isf_alloc_cpl *** |
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| 179 | !! |
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| 180 | !! ** Purpose : allocate array use for the ice sheet coupling |
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| 181 | !! |
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| 182 | !!---------------------------------------------------------------------- |
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| 183 | INTEGER :: ierr, ialloc |
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| 184 | !!---------------------------------------------------------------------- |
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| 185 | ierr = 0 |
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| 186 | ! |
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| 187 | ALLOCATE( risfcpl_ssh(jpi,jpj), risfcpl_tsc(jpi,jpj,jpk,jpts), risfcpl_vol(jpi,jpj,jpk), STAT=ialloc ) |
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| 188 | ierr = ierr + ialloc |
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| 189 | ! |
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| 190 | risfcpl_tsc(:,:,:,:) = 0.0 ; risfcpl_vol(:,:,:) = 0.0 ; risfcpl_ssh(:,:) = 0.0 |
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| 191 | |
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| 192 | IF ( ln_isfcpl_cons) THEN |
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| 193 | ALLOCATE( risfcpl_cons_tsc(jpi,jpj,jpk,jpts) , risfcpl_cons_vol(jpi,jpj,jpk) ,risfcpl_cons_ssh(jpi,jpj), STAT=ialloc ) |
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| 194 | ierr = ierr + ialloc |
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| 195 | ! |
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| 196 | risfcpl_cons_tsc(:,:,:,:) = 0.0 ; risfcpl_cons_vol(:,:,:) = 0.0 ; risfcpl_cons_ssh(:,:) = 0.0 |
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| 197 | ! |
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| 198 | END IF |
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| 199 | ! |
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| 200 | CALL mpp_sum ( 'isf', ierr ) |
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| 201 | IF( ierr /= 0 ) CALL ctl_stop('STOP','isfcpl: failed to allocate arrays.') |
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| 202 | ! |
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| 203 | END SUBROUTINE isf_alloc_cpl |
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| 204 | |
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| 205 | SUBROUTINE isf_dealloc_cpl() |
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| 206 | !!--------------------------------------------------------------------- |
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| 207 | !! *** ROUTINE isf_dealloc_cpl *** |
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| 208 | !! |
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| 209 | !! ** Purpose : de-allocate useless public 3d array used for ice sheet coupling |
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| 210 | !! |
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| 211 | !!---------------------------------------------------------------------- |
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| 212 | INTEGER :: ierr, ialloc |
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| 213 | !!---------------------------------------------------------------------- |
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| 214 | ierr = 0 |
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| 215 | ! |
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| 216 | DEALLOCATE( risfcpl_ssh, risfcpl_tsc, risfcpl_vol, STAT=ialloc ) |
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| 217 | ierr = ierr + ialloc |
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| 218 | ! |
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| 219 | CALL mpp_sum ( 'isf', ierr ) |
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| 220 | IF( ierr /= 0 ) CALL ctl_stop('STOP','isfcpl: failed to deallocate arrays.') |
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| 221 | ! |
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| 222 | END SUBROUTINE isf_dealloc_cpl |
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| 223 | |
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| 224 | SUBROUTINE isf_alloc() |
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| 225 | !!--------------------------------------------------------------------- |
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| 226 | !! *** ROUTINE isf_alloc *** |
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| 227 | !! |
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| 228 | !! ** Purpose : allocate array used for the ice shelf cavity (cav and par) |
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| 229 | !! |
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| 230 | !!---------------------------------------------------------------------- |
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| 231 | INTEGER :: ierr, ialloc |
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| 232 | !!---------------------------------------------------------------------- |
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| 233 | ! |
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| 234 | ierr = 0 ! set to zero if no array to be allocated |
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| 235 | ! |
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| 236 | ALLOCATE(fwfisf_par(jpi,jpj) , fwfisf_par_b(jpi,jpj), & |
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| 237 | & fwfisf_cav(jpi,jpj) , fwfisf_cav_b(jpi,jpj), & |
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| 238 | & fwfisf_oasis(jpi,jpj), STAT=ialloc ) |
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| 239 | ierr = ierr + ialloc |
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| 240 | ! |
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| 241 | ALLOCATE(risf_par_tsc(jpi,jpj,jpts), risf_par_tsc_b(jpi,jpj,jpts), STAT=ialloc ) |
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| 242 | ierr = ierr + ialloc |
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| 243 | ! |
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| 244 | ALLOCATE(risf_cav_tsc(jpi,jpj,jpts), risf_cav_tsc_b(jpi,jpj,jpts), STAT=ialloc ) |
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| 245 | ierr = ierr + ialloc |
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| 246 | ! |
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| 247 | ALLOCATE(risfload(jpi,jpj), STAT=ialloc) |
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| 248 | ierr = ierr + ialloc |
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| 249 | ! |
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| 250 | ALLOCATE( mskisf_cav(jpi,jpj), STAT=ialloc) |
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| 251 | ierr = ierr + ialloc |
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| 252 | ! |
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| 253 | CALL mpp_sum ( 'isf', ierr ) |
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| 254 | IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'isf: failed to allocate arrays.' ) |
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| 255 | ! |
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| 256 | ! initalisation of fwf and tsc array to 0 |
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| 257 | risfload(:,:) = 0.0_wp |
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| 258 | fwfisf_oasis(:,:) = 0.0_wp |
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| 259 | fwfisf_par(:,:) = 0.0_wp ; fwfisf_par_b(:,:) = 0.0_wp |
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| 260 | fwfisf_cav(:,:) = 0.0_wp ; fwfisf_cav_b(:,:) = 0.0_wp |
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| 261 | risf_cav_tsc(:,:,:) = 0.0_wp ; risf_cav_tsc_b(:,:,:) = 0.0_wp |
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| 262 | risf_par_tsc(:,:,:) = 0.0_wp ; risf_par_tsc_b(:,:,:) = 0.0_wp |
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| 263 | ! |
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| 264 | |
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| 265 | END SUBROUTINE isf_alloc |
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| 266 | |
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| 267 | END MODULE isf_oce |
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