[888] | 1 | MODULE sbc_ice |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbc_ice *** |
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[2715] | 4 | !! Surface module - LIM-3: parameters & variables defined in memory |
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[888] | 5 | !!====================================================================== |
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[2715] | 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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[3294] | 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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[888] | 10 | !!---------------------------------------------------------------------- |
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[9019] | 11 | #if defined key_lim3 || defined key_cice |
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[888] | 12 | !!---------------------------------------------------------------------- |
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[9019] | 13 | !! 'key_lim3' or 'key_cice' : LIM-3 or CICE sea-ice model |
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[888] | 14 | !!---------------------------------------------------------------------- |
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| 15 | USE par_oce ! ocean parameters |
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[4990] | 16 | USE sbc_oce ! surface boundary condition: ocean |
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[1465] | 17 | # if defined key_lim3 |
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[5123] | 18 | USE ice ! LIM-3 parameters |
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[1465] | 19 | # endif |
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[4990] | 20 | # if defined key_cice |
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[3294] | 21 | USE ice_domain_size, only: ncat |
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| 22 | #endif |
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[2715] | 23 | USE lib_mpp ! MPP library |
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| 24 | USE in_out_manager ! I/O manager |
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[888] | 25 | |
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| 26 | IMPLICIT NONE |
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| 27 | PRIVATE |
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| 28 | |
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[9019] | 29 | PUBLIC sbc_ice_alloc ! called in sbcmod.F90 or sbcice_cice.F90 |
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[2715] | 30 | |
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[1465] | 31 | # if defined key_lim3 |
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[2528] | 32 | LOGICAL , PUBLIC, PARAMETER :: lk_lim3 = .TRUE. !: LIM-3 ice model |
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[3294] | 33 | LOGICAL , PUBLIC, PARAMETER :: lk_cice = .FALSE. !: no CICE |
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[2528] | 34 | CHARACTER(len=1), PUBLIC, PARAMETER :: cp_ice_msh = 'C' !: 'C'-grid ice-velocity |
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[1465] | 35 | # endif |
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[3294] | 36 | # if defined key_cice |
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| 37 | LOGICAL , PUBLIC, PARAMETER :: lk_lim3 = .FALSE. !: no LIM-3 |
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| 38 | LOGICAL , PUBLIC, PARAMETER :: lk_cice = .TRUE. !: CICE ice model |
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| 39 | CHARACTER(len=1), PUBLIC :: cp_ice_msh = 'F' !: 'F'-grid ice-velocity |
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[9819] | 40 | |
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| 41 | ! Parameters imported from LIM to get CICE to work with NEMO4 |
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| 42 | INTEGER , PUBLIC, PARAMETER :: np_jules_OFF = 0 !: no Jules coupling (ice thermodynamics forced via qsr and qns) |
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| 43 | INTEGER , PUBLIC, PARAMETER :: np_jules_EMULE = 1 !: emulated Jules coupling via icethd_zdf.F90 (BL99) (1st round compute qcn and qsr_tr, 2nd round use it) |
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| 44 | INTEGER , PUBLIC, PARAMETER :: np_jules_ACTIVE = 2 !: active Jules coupling (SM0L) (compute qcn and qsr_tr via sbcblk.F90 or sbccpl.F90) |
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| 45 | INTEGER , PUBLIC, PARAMETER :: nice_jules = np_jules_ACTIVE !: Choice of jules coupling |
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[3294] | 46 | # endif |
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[1465] | 47 | |
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[4990] | 48 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qns_ice !: non solar heat flux over ice [W/m2] |
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| 49 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qsr_ice !: solar heat flux over ice [W/m2] |
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[9675] | 50 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: zevap_ice !: latent flux over ice [W/m2] |
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[4990] | 51 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: dqla_ice !: latent sensibility over ice [W/m2/K] |
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| 52 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: dqns_ice !: non solar heat flux over ice (LW+SEN+LA) [W/m2/K] |
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[9675] | 53 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t1_ice !: ice surface temperature [K] |
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[4990] | 54 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: alb_ice !: ice albedo [-] |
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[888] | 55 | |
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[9019] | 56 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qml_ice !: heat available for snow / ice surface melting [W/m2] |
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| 57 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qcn_ice !: heat conduction flux in the layer below surface [W/m2] |
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| 58 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qsr_ice_tr !: solar flux transmitted below the ice surface [W/m2] |
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| 59 | |
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[4990] | 60 | 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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| 61 | 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] | 62 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp_ice !: sublimation - precip over sea ice [kg/m2/s] |
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[888] | 63 | |
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[9819] | 64 | #if defined key_lim3 || defined key_cice |
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[5407] | 65 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: evap_ice !: sublimation [kg/m2/s] |
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| 66 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: devap_ice !: sublimation sensitivity [kg/m2/s/K] |
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| 67 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qns_oce !: non solar heat flux over ocean [W/m2] |
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| 68 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qsr_oce !: non solar heat flux over ocean [W/m2] |
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| 69 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qemp_oce !: heat flux of precip and evap over ocean [W/m2] |
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| 70 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qemp_ice !: heat flux of precip and evap over ice [W/m2] |
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[6416] | 71 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qevap_ice !: heat flux of evap over ice [W/m2] |
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| 72 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qprec_ice !: enthalpy of precip over ice [J/m3] |
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[5407] | 73 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp_oce !: evap - precip over ocean [kg/m2/s] |
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| 74 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wndm_ice !: wind speed module at T-point [m/s] |
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[9019] | 75 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sstfrz !: wind speed module at T-point [m/s] |
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| 76 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: tsfc_ice !: sea ice surface skin temperature (on categories) |
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[5407] | 77 | #endif |
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| 78 | |
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[4990] | 79 | #if defined key_cice |
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[3294] | 80 | ! |
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| 81 | ! for consistency with LIM, these are declared with three dimensions |
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| 82 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qlw_ice !: incoming long-wave |
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| 83 | ! |
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| 84 | ! other forcing arrays are two dimensional |
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| 85 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ss_iou !: x ice-ocean surface stress at NEMO U point |
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| 86 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ss_iov !: y ice-ocean surface stress at NEMO V point |
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| 87 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qatm_ice !: specific humidity |
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| 88 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wndi_ice !: i wind at T point |
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| 89 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wndj_ice !: j wind at T point |
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| 90 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: nfrzmlt !: NEMO frzmlt |
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| 91 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fr_iu !: ice fraction at NEMO U point |
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| 92 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fr_iv !: ice fraction at NEMO V point |
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[9500] | 93 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sstfrz !: sea surface freezing temperature |
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| 94 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: tsfc_ice !: sea-ice surface skin temperature (on categories) |
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[9675] | 95 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: cnd_ice !: sea-ice surface layer thermal conductivity (on cats) |
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[9500] | 96 | |
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[4990] | 97 | ! variables used in the coupled interface |
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| 98 | INTEGER , PUBLIC, PARAMETER :: jpl = ncat |
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| 99 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice, v_ice ! jpi, jpj |
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[9675] | 100 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_ip, v_ip ! Meltpond fraction and depth |
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[4990] | 101 | |
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[9500] | 102 | ! |
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| 103 | |
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| 104 | ! |
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| 105 | #if defined key_asminc |
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| 106 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ndaice_da !: NEMO fresh water flux to ocean due to data assim |
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| 107 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: nfresh_da !: NEMO salt flux to ocean due to data assim |
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| 108 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: nfsalt_da !: NEMO ice concentration change/second from data assim |
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| 109 | #endif |
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| 110 | |
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| 111 | |
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[4990] | 112 | ! already defined in ice.F90 for LIM3 |
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| 113 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i |
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[9019] | 114 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_i, h_s |
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[3294] | 115 | |
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[4990] | 116 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tatm_ice !: air temperature [K] |
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| 117 | #endif |
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| 118 | |
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| 119 | REAL(wp), PUBLIC, SAVE :: cldf_ice = 0.81 !: cloud fraction over sea ice, summer CLIO value [-] |
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| 120 | |
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[9019] | 121 | !! arrays relating to embedding ice in the ocean |
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| 122 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_mass !: mass of snow and ice at current ice time step [Kg/m2] |
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| 123 | 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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| 124 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_fmass !: time evolution of mass of snow+ice [Kg/m2/s] |
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| 125 | |
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[2715] | 126 | !!---------------------------------------------------------------------- |
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| 127 | !! NEMO/OPA 4.0 , NEMO Consortium (2011) |
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[9499] | 128 | !! $Id$ |
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[2715] | 129 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 130 | !!---------------------------------------------------------------------- |
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| 131 | CONTAINS |
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| 132 | |
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| 133 | INTEGER FUNCTION sbc_ice_alloc() |
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| 134 | !!---------------------------------------------------------------------- |
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| 135 | !! *** FUNCTION sbc_ice_alloc *** |
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| 136 | !!---------------------------------------------------------------------- |
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[9019] | 137 | INTEGER :: ierr(4) |
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[4306] | 138 | !!---------------------------------------------------------------------- |
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| 139 | ierr(:) = 0 |
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| 140 | |
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[9019] | 141 | ALLOCATE( snwice_mass(jpi,jpj) , snwice_mass_b(jpi,jpj), snwice_fmass(jpi,jpj) , STAT=ierr(1) ) |
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| 142 | |
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[5407] | 143 | #if defined key_lim3 |
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[9019] | 144 | ALLOCATE( qns_ice (jpi,jpj,jpl) , qsr_ice (jpi,jpj,jpl) , & |
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[9675] | 145 | & zevap_ice (jpi,jpj,jpl) , dqla_ice (jpi,jpj,jpl) , & |
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| 146 | & dqns_ice(jpi,jpj,jpl) , t1_ice (jpi,jpj,jpl) , alb_ice (jpi,jpj,jpl) , & |
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[9019] | 147 | & qml_ice (jpi,jpj,jpl) , qcn_ice (jpi,jpj,jpl) , qsr_ice_tr(jpi,jpj,jpl) , & |
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| 148 | & utau_ice(jpi,jpj) , vtau_ice (jpi,jpj) , wndm_ice (jpi,jpj) , & |
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| 149 | & evap_ice(jpi,jpj,jpl) , devap_ice(jpi,jpj,jpl) , qprec_ice (jpi,jpj) , & |
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| 150 | & qemp_ice(jpi,jpj) , qevap_ice(jpi,jpj,jpl) , qemp_oce (jpi,jpj) , & |
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| 151 | & qns_oce (jpi,jpj) , qsr_oce (jpi,jpj) , emp_oce (jpi,jpj) , & |
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| 152 | & emp_ice (jpi,jpj) , tsfc_ice (jpi,jpj,jpl) , sstfrz (jpi,jpj) , STAT= ierr(2) ) |
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[5407] | 153 | #endif |
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[4990] | 154 | |
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| 155 | #if defined key_cice |
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[9675] | 156 | ALLOCATE( zevap_ice(jpi,jpj,ncat) , qlw_ice(jpi,jpj,1) , qsr_ice(jpi,jpj,1) , & |
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[3294] | 157 | wndi_ice(jpi,jpj) , tatm_ice(jpi,jpj) , qatm_ice(jpi,jpj) , & |
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| 158 | wndj_ice(jpi,jpj) , nfrzmlt(jpi,jpj) , ss_iou(jpi,jpj) , & |
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| 159 | ss_iov(jpi,jpj) , fr_iu(jpi,jpj) , fr_iv(jpi,jpj) , & |
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[9675] | 160 | a_i(jpi,jpj,ncat) , qml_ice(jpi,jpj,ncat) , qcn_ice(jpi,jpj,ncat) , & |
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[9503] | 161 | #if defined key_asminc |
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| 162 | ndaice_da(jpi,jpj) , nfresh_da(jpi,jpj) , nfsalt_da(jpi,jpj) , & |
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| 163 | #endif |
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| 164 | sstfrz(jpi,jpj) , STAT= ierr(2) ) |
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[9675] | 165 | IF( ln_cpl ) ALLOCATE( u_ice(jpi,jpj) , t1_ice (jpi,jpj,jpl) , & |
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[9503] | 166 | & v_ice(jpi,jpj) , alb_ice(jpi,jpj,1) , & |
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| 167 | & emp_ice(jpi,jpj) , qns_ice(jpi,jpj,1) , dqns_ice(jpi,jpj,1) , & |
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[9675] | 168 | & a_ip(jpi,jpj,jpl) , v_ip(jpi,jpj,jpl) , tsfc_ice(jpi,jpj,jpl) , & |
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| 169 | & cnd_ice(jpi,jpj,jpl) , STAT=ierr(3) ) |
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[9019] | 170 | IF( ln_cpl ) ALLOCATE( h_i(jpi,jpj,jpl) , h_s(jpi,jpj,jpl) , STAT=ierr(4) ) |
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[3294] | 171 | #endif |
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[4990] | 172 | |
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[4306] | 173 | sbc_ice_alloc = MAXVAL( ierr ) |
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[2715] | 174 | IF( lk_mpp ) CALL mpp_sum ( sbc_ice_alloc ) |
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| 175 | IF( sbc_ice_alloc > 0 ) CALL ctl_warn('sbc_ice_alloc: allocation of arrays failed') |
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| 176 | END FUNCTION sbc_ice_alloc |
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| 177 | |
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[888] | 178 | #else |
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| 179 | !!---------------------------------------------------------------------- |
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[9019] | 180 | !! Default option NO LIM3 or CICE sea-ice model |
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[888] | 181 | !!---------------------------------------------------------------------- |
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[9019] | 182 | USE lib_mpp ! MPP library |
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[4990] | 183 | USE in_out_manager ! I/O manager |
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[9019] | 184 | |
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| 185 | IMPLICIT NONE |
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| 186 | PRIVATE |
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| 187 | |
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| 188 | PUBLIC sbc_ice_alloc ! |
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| 189 | |
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[2528] | 190 | LOGICAL , PUBLIC, PARAMETER :: lk_lim3 = .FALSE. !: no LIM-3 ice model |
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[3294] | 191 | LOGICAL , PUBLIC, PARAMETER :: lk_cice = .FALSE. !: no CICE ice model |
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[2528] | 192 | CHARACTER(len=1), PUBLIC, PARAMETER :: cp_ice_msh = '-' !: no grid ice-velocity |
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[9019] | 193 | REAL(wp) , PUBLIC, PARAMETER :: cldf_ice = 0.81 !: cloud fraction over sea ice, summer CLIO value [-] |
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[4990] | 194 | INTEGER , PUBLIC, PARAMETER :: jpl = 1 |
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[9019] | 195 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice, v_ice ! jpi, jpj |
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[9675] | 196 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t1_ice, alb_ice, qns_ice, dqns_ice ! (jpi,jpj,jpl) |
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[4990] | 197 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i |
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| 198 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp_ice |
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| 199 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qsr_ice |
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[9019] | 200 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_i, h_s |
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[9675] | 201 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qml_ice, qcn_ice |
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[9019] | 202 | ! |
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| 203 | !! arrays related to embedding ice in the ocean. |
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| 204 | !! These arrays need to be declared even if no ice model is required. |
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| 205 | !! In the no ice model or traditional levitating ice cases they contain only zeros |
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| 206 | !! --------------------- |
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| 207 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_mass !: mass of snow and ice at current ice time step [Kg/m2] |
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| 208 | 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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| 209 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: snwice_fmass !: time evolution of mass of snow+ice [Kg/m2/s] |
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| 210 | !!---------------------------------------------------------------------- |
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| 211 | CONTAINS |
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| 212 | |
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| 213 | INTEGER FUNCTION sbc_ice_alloc() |
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| 214 | !!---------------------------------------------------------------------- |
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| 215 | !! *** FUNCTION sbc_ice_alloc *** |
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| 216 | !!---------------------------------------------------------------------- |
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| 217 | INTEGER :: ierr(1) |
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| 218 | !!---------------------------------------------------------------------- |
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| 219 | ierr(:) = 0 |
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| 220 | ALLOCATE( snwice_mass(jpi,jpj) , snwice_mass_b(jpi,jpj), snwice_fmass(jpi,jpj) , STAT=ierr(1) ) |
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| 221 | sbc_ice_alloc = MAXVAL( ierr ) |
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| 222 | IF( lk_mpp ) CALL mpp_sum ( sbc_ice_alloc ) |
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| 223 | IF( sbc_ice_alloc > 0 ) CALL ctl_warn('sbc_ice_alloc: allocation of arrays failed') |
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| 224 | END FUNCTION sbc_ice_alloc |
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[888] | 225 | #endif |
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| 226 | |
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[1469] | 227 | !!====================================================================== |
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[888] | 228 | END MODULE sbc_ice |
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