[888] | 1 | MODULE sbc_ice |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbc_ice *** |
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[9656] | 4 | !! Surface module - SI3 & CICE: parameters & variables defined in memory |
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[888] | 5 | !!====================================================================== |
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[9656] | 6 | !! History : 3.0 ! 2006-08 (G. Madec) Surface module |
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| 7 | !! 3.2 ! 2009-06 (S. Masson) merge with ice_oce |
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| 8 | !! 3.3.1 ! 2011-01 (A. R. Porter, STFC Daresbury) dynamical allocation |
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| 9 | !! 3.4 ! 2011-11 (C. Harris) CICE added as an option |
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| 10 | !! 4.0 ! 2018 (many people) SI3 compatibility |
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[888] | 11 | !!---------------------------------------------------------------------- |
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[9570] | 12 | #if defined key_si3 || defined key_cice |
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[888] | 13 | !!---------------------------------------------------------------------- |
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[9654] | 14 | !! 'key_si3' or 'key_cice' : SI3 or CICE sea-ice model |
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[888] | 15 | !!---------------------------------------------------------------------- |
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| 16 | USE par_oce ! ocean parameters |
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[4990] | 17 | USE sbc_oce ! surface boundary condition: ocean |
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[9570] | 18 | # if defined key_si3 |
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[9656] | 19 | USE ice ! SI3 parameters |
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[1465] | 20 | # endif |
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[4990] | 21 | # if defined key_cice |
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[3294] | 22 | USE ice_domain_size, only: ncat |
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| 23 | #endif |
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[2715] | 24 | USE lib_mpp ! MPP library |
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| 25 | USE in_out_manager ! I/O manager |
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[888] | 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | PRIVATE |
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| 29 | |
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[9019] | 30 | PUBLIC sbc_ice_alloc ! called in sbcmod.F90 or sbcice_cice.F90 |
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[2715] | 31 | |
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[9570] | 32 | # if defined key_si3 |
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[9656] | 33 | LOGICAL , PUBLIC, PARAMETER :: lk_si3 = .TRUE. !: SI3 ice model |
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[3294] | 34 | LOGICAL , PUBLIC, PARAMETER :: lk_cice = .FALSE. !: no CICE |
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[1465] | 35 | # endif |
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[3294] | 36 | # if defined key_cice |
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[9656] | 37 | LOGICAL , PUBLIC, PARAMETER :: lk_si3 = .FALSE. !: no SI3 |
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[3294] | 38 | LOGICAL , PUBLIC, PARAMETER :: lk_cice = .TRUE. !: CICE ice model |
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| 39 | # endif |
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[1465] | 40 | |
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[4990] | 41 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qns_ice !: non solar heat flux over ice [W/m2] |
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| 42 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qsr_ice !: solar heat flux over ice [W/m2] |
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| 43 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qla_ice !: latent flux over ice [W/m2] |
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| 44 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: dqla_ice !: latent sensibility over ice [W/m2/K] |
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| 45 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: dqns_ice !: non solar heat flux over ice (LW+SEN+LA) [W/m2/K] |
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| 46 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: tn_ice !: ice surface temperature [K] |
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| 47 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: alb_ice !: ice albedo [-] |
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[888] | 48 | |
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[9019] | 49 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qml_ice !: heat available for snow / ice surface melting [W/m2] |
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| 50 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qcn_ice !: heat conduction flux in the layer below surface [W/m2] |
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[9910] | 51 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qtr_ice_top !: solar flux transmitted below the ice surface [W/m2] |
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[9019] | 52 | |
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[4990] | 53 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: utau_ice !: atmos-ice u-stress. VP: I-pt ; EVP: U,V-pts [N/m2] |
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| 54 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: vtau_ice !: atmos-ice v-stress. VP: I-pt ; EVP: U,V-pts [N/m2] |
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[5407] | 55 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp_ice !: sublimation - precip over sea ice [kg/m2/s] |
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[888] | 56 | |
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[4990] | 57 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: topmelt !: category topmelt |
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| 58 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: botmelt !: category botmelt |
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[1465] | 59 | |
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[9570] | 60 | #if defined key_si3 |
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[5407] | 61 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: evap_ice !: sublimation [kg/m2/s] |
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| 62 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: devap_ice !: sublimation sensitivity [kg/m2/s/K] |
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| 63 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qns_oce !: non solar heat flux over ocean [W/m2] |
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| 64 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qsr_oce !: non solar heat flux over ocean [W/m2] |
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| 65 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qemp_oce !: heat flux of precip and evap over ocean [W/m2] |
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| 66 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qemp_ice !: heat flux of precip and evap over ice [W/m2] |
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[6416] | 67 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qevap_ice !: heat flux of evap over ice [W/m2] |
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| 68 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qprec_ice !: enthalpy of precip over ice [J/m3] |
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[5407] | 69 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp_oce !: evap - precip over ocean [kg/m2/s] |
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| 70 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wndm_ice !: wind speed module at T-point [m/s] |
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[13284] | 71 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sstfrz !: sea surface freezing temperature [degC] |
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| 72 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rCdU_ice !: ice-ocean drag at T-point (<0) [m/s] |
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[5407] | 73 | #endif |
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| 74 | |
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[4990] | 75 | #if defined key_cice |
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[3294] | 76 | ! |
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[9656] | 77 | ! for consistency with SI3, these are declared with three dimensions |
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[3294] | 78 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qlw_ice !: incoming long-wave |
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| 79 | ! |
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| 80 | ! other forcing arrays are two dimensional |
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| 81 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ss_iou !: x ice-ocean surface stress at NEMO U point |
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| 82 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ss_iov !: y ice-ocean surface stress at NEMO V point |
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| 83 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qatm_ice !: specific humidity |
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| 84 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wndi_ice !: i wind at T point |
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| 85 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wndj_ice !: j wind at T point |
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| 86 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: nfrzmlt !: NEMO frzmlt |
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| 87 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fr_iu !: ice fraction at NEMO U point |
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| 88 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fr_iv !: ice fraction at NEMO V point |
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[4990] | 89 | |
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| 90 | ! variables used in the coupled interface |
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| 91 | INTEGER , PUBLIC, PARAMETER :: jpl = ncat |
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[13284] | 92 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice, v_ice |
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[4990] | 93 | |
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[9656] | 94 | ! already defined in ice.F90 for SI3 |
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[4990] | 95 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i |
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[9019] | 96 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_i, h_s |
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[13284] | 97 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i_last_couple !: Sea ice fraction on categories at the last coupling point |
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[3294] | 98 | |
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[4990] | 99 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tatm_ice !: air temperature [K] |
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| 100 | #endif |
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| 101 | |
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[13284] | 102 | REAL(wp), PUBLIC, SAVE :: pp_cldf = 0.81 !: cloud fraction over sea ice, summer CLIO value [-] |
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[4990] | 103 | |
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[9019] | 104 | !! arrays relating to embedding ice in the ocean |
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| 105 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_mass !: mass of snow and ice at current ice time step [Kg/m2] |
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| 106 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_mass_b !: mass of snow and ice at previous ice time step [Kg/m2] |
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| 107 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_fmass !: time evolution of mass of snow+ice [Kg/m2/s] |
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| 108 | |
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[2715] | 109 | !!---------------------------------------------------------------------- |
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[9598] | 110 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[13587] | 111 | !! $Id$ |
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[10068] | 112 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[2715] | 113 | !!---------------------------------------------------------------------- |
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| 114 | CONTAINS |
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| 115 | |
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| 116 | INTEGER FUNCTION sbc_ice_alloc() |
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| 117 | !!---------------------------------------------------------------------- |
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| 118 | !! *** FUNCTION sbc_ice_alloc *** |
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| 119 | !!---------------------------------------------------------------------- |
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[9019] | 120 | INTEGER :: ierr(4) |
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[4306] | 121 | !!---------------------------------------------------------------------- |
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| 122 | ierr(:) = 0 |
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| 123 | |
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[9019] | 124 | ALLOCATE( snwice_mass(jpi,jpj) , snwice_mass_b(jpi,jpj), snwice_fmass(jpi,jpj) , STAT=ierr(1) ) |
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| 125 | |
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[9570] | 126 | #if defined key_si3 |
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[9019] | 127 | ALLOCATE( qns_ice (jpi,jpj,jpl) , qsr_ice (jpi,jpj,jpl) , & |
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| 128 | & qla_ice (jpi,jpj,jpl) , dqla_ice (jpi,jpj,jpl) , & |
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[9910] | 129 | & dqns_ice(jpi,jpj,jpl) , tn_ice (jpi,jpj,jpl) , alb_ice (jpi,jpj,jpl) , & |
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| 130 | & qml_ice (jpi,jpj,jpl) , qcn_ice (jpi,jpj,jpl) , qtr_ice_top(jpi,jpj,jpl) , & |
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| 131 | & utau_ice(jpi,jpj) , vtau_ice (jpi,jpj) , wndm_ice (jpi,jpj) , & |
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| 132 | & evap_ice(jpi,jpj,jpl) , devap_ice(jpi,jpj,jpl) , qprec_ice (jpi,jpj) , & |
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| 133 | & qemp_ice(jpi,jpj) , qevap_ice(jpi,jpj,jpl) , qemp_oce (jpi,jpj) , & |
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| 134 | & qns_oce (jpi,jpj) , qsr_oce (jpi,jpj) , emp_oce (jpi,jpj) , & |
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[13284] | 135 | & emp_ice (jpi,jpj) , sstfrz (jpi,jpj) , rCdU_ice (jpi,jpj) , STAT= ierr(2) ) |
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[5407] | 136 | #endif |
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[4990] | 137 | |
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| 138 | #if defined key_cice |
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[3294] | 139 | ALLOCATE( qla_ice(jpi,jpj,1) , qlw_ice(jpi,jpj,1) , qsr_ice(jpi,jpj,1) , & |
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| 140 | wndi_ice(jpi,jpj) , tatm_ice(jpi,jpj) , qatm_ice(jpi,jpj) , & |
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| 141 | wndj_ice(jpi,jpj) , nfrzmlt(jpi,jpj) , ss_iou(jpi,jpj) , & |
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| 142 | ss_iov(jpi,jpj) , fr_iu(jpi,jpj) , fr_iv(jpi,jpj) , & |
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[4990] | 143 | a_i(jpi,jpj,ncat) , topmelt(jpi,jpj,ncat) , botmelt(jpi,jpj,ncat) , & |
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[9019] | 144 | STAT= ierr(2) ) |
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| 145 | IF( ln_cpl ) ALLOCATE( u_ice(jpi,jpj) , tn_ice (jpi,jpj,1) , & |
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| 146 | & v_ice(jpi,jpj) , alb_ice(jpi,jpj,1) , & |
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[4990] | 147 | & emp_ice(jpi,jpj) , qns_ice(jpi,jpj,1) , dqns_ice(jpi,jpj,1) , & |
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[9019] | 148 | & STAT= ierr(3) ) |
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| 149 | IF( ln_cpl ) ALLOCATE( h_i(jpi,jpj,jpl) , h_s(jpi,jpj,jpl) , STAT=ierr(4) ) |
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[3294] | 150 | #endif |
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[4990] | 151 | |
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[4306] | 152 | sbc_ice_alloc = MAXVAL( ierr ) |
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[10425] | 153 | CALL mpp_sum ( 'sbc_ice', sbc_ice_alloc ) |
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[2715] | 154 | IF( sbc_ice_alloc > 0 ) CALL ctl_warn('sbc_ice_alloc: allocation of arrays failed') |
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| 155 | END FUNCTION sbc_ice_alloc |
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| 156 | |
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[888] | 157 | #else |
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| 158 | !!---------------------------------------------------------------------- |
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[9654] | 159 | !! Default option NO SI3 or CICE sea-ice model |
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[888] | 160 | !!---------------------------------------------------------------------- |
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[9019] | 161 | USE lib_mpp ! MPP library |
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[4990] | 162 | USE in_out_manager ! I/O manager |
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[9019] | 163 | |
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| 164 | IMPLICIT NONE |
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| 165 | PRIVATE |
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| 166 | |
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| 167 | PUBLIC sbc_ice_alloc ! |
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| 168 | |
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[9656] | 169 | LOGICAL , PUBLIC, PARAMETER :: lk_si3 = .FALSE. !: no SI3 ice model |
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| 170 | LOGICAL , PUBLIC, PARAMETER :: lk_cice = .FALSE. !: no CICE ice model |
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[13284] | 171 | REAL(wp) , PUBLIC, PARAMETER :: pp_cldf = 0.81 !: cloud fraction over sea ice, summer CLIO value [-] |
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[4990] | 172 | INTEGER , PUBLIC, PARAMETER :: jpl = 1 |
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[9019] | 173 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice, v_ice ! jpi, jpj |
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[4990] | 174 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: tn_ice, alb_ice, qns_ice, dqns_ice ! (jpi,jpj,jpl) |
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| 175 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i |
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| 176 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp_ice |
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| 177 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qsr_ice |
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[9019] | 178 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_i, h_s |
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[4990] | 179 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: topmelt, botmelt |
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[9019] | 180 | ! |
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| 181 | !! arrays related to embedding ice in the ocean. |
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| 182 | !! These arrays need to be declared even if no ice model is required. |
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| 183 | !! In the no ice model or traditional levitating ice cases they contain only zeros |
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| 184 | !! --------------------- |
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| 185 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_mass !: mass of snow and ice at current ice time step [Kg/m2] |
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| 186 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_mass_b !: mass of snow and ice at previous ice time step [Kg/m2] |
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| 187 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_fmass !: time evolution of mass of snow+ice [Kg/m2/s] |
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| 188 | !!---------------------------------------------------------------------- |
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| 189 | CONTAINS |
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| 190 | |
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| 191 | INTEGER FUNCTION sbc_ice_alloc() |
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| 192 | !!---------------------------------------------------------------------- |
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| 193 | !! *** FUNCTION sbc_ice_alloc *** |
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| 194 | !!---------------------------------------------------------------------- |
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| 195 | INTEGER :: ierr(1) |
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| 196 | !!---------------------------------------------------------------------- |
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| 197 | ierr(:) = 0 |
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| 198 | ALLOCATE( snwice_mass(jpi,jpj) , snwice_mass_b(jpi,jpj), snwice_fmass(jpi,jpj) , STAT=ierr(1) ) |
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| 199 | sbc_ice_alloc = MAXVAL( ierr ) |
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[10425] | 200 | CALL mpp_sum ( 'sbc_ice', sbc_ice_alloc ) |
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[9019] | 201 | IF( sbc_ice_alloc > 0 ) CALL ctl_warn('sbc_ice_alloc: allocation of arrays failed') |
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| 202 | END FUNCTION sbc_ice_alloc |
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[888] | 203 | #endif |
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| 204 | |
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[1469] | 205 | !!====================================================================== |
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[888] | 206 | END MODULE sbc_ice |
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