[888] | 1 | MODULE sbcblk_core |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbcblk_core *** |
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| 4 | !! Ocean forcing: momentum, heat and freshwater flux formulation |
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| 5 | !!===================================================================== |
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[1482] | 6 | !! History : 1.0 ! 2004-08 (U. Schweckendiek) Original code |
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[4990] | 7 | !! 2.0 ! 2005-04 (L. Brodeau, A.M. Treguier) additions: |
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[1482] | 8 | !! - new bulk routine for efficiency |
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| 9 | !! - WINDS ARE NOW ASSUMED TO BE AT T POINTS in input files !!!! |
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[4990] | 10 | !! - file names and file characteristics in namelist |
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| 11 | !! - Implement reading of 6-hourly fields |
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| 12 | !! 3.0 ! 2006-06 (G. Madec) sbc rewritting |
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| 13 | !! - ! 2006-12 (L. Brodeau) Original code for turb_core_2z |
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[1482] | 14 | !! 3.2 ! 2009-04 (B. Lemaire) Introduce iom_put |
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[2528] | 15 | !! 3.3 ! 2010-10 (S. Masson) add diurnal cycle |
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[3294] | 16 | !! 3.4 ! 2011-11 (C. Harris) Fill arrays required by CICE |
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[4990] | 17 | !! 3.7 ! 2014-06 (L. Brodeau) simplification and optimization of CORE bulk |
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[888] | 18 | !!---------------------------------------------------------------------- |
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| 19 | |
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| 20 | !!---------------------------------------------------------------------- |
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[4990] | 21 | !! sbc_blk_core : bulk formulation as ocean surface boundary condition (forced mode, CORE bulk formulea) |
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| 22 | !! blk_oce_core : computes momentum, heat and freshwater fluxes over ocean |
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| 23 | !! blk_ice_core : computes momentum, heat and freshwater fluxes over ice |
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| 24 | !! turb_core_2z : Computes turbulent transfert coefficients |
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| 25 | !! cd_neutral_10m : Estimate of the neutral drag coefficient at 10m |
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| 26 | !! psi_m : universal profile stability function for momentum |
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| 27 | !! psi_h : universal profile stability function for temperature and humidity |
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[888] | 28 | !!---------------------------------------------------------------------- |
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| 29 | USE oce ! ocean dynamics and tracers |
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| 30 | USE dom_oce ! ocean space and time domain |
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| 31 | USE phycst ! physical constants |
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| 32 | USE fldread ! read input fields |
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| 33 | USE sbc_oce ! Surface boundary condition: ocean fields |
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[3680] | 34 | USE cyclone ! Cyclone 10m wind form trac of cyclone centres |
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[2528] | 35 | USE sbcdcy ! surface boundary condition: diurnal cycle |
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[888] | 36 | USE iom ! I/O manager library |
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| 37 | USE in_out_manager ! I/O manager |
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| 38 | USE lib_mpp ! distribued memory computing library |
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[3294] | 39 | USE wrk_nemo ! work arrays |
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| 40 | USE timing ! Timing |
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[888] | 41 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 42 | USE prtctl ! Print control |
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[4990] | 43 | USE sbcwave, ONLY : cdn_wave ! wave module |
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[1465] | 44 | USE sbc_ice ! Surface boundary condition: ice fields |
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[4161] | 45 | USE lib_fortran ! to use key_nosignedzero |
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[5407] | 46 | #if defined key_lim3 |
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| 47 | USE ice, ONLY : u_ice, v_ice, jpl, pfrld, a_i_b |
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| 48 | USE limthd_dh ! for CALL lim_thd_snwblow |
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| 49 | #elif defined key_lim2 |
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| 50 | USE ice_2, ONLY : u_ice, v_ice |
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| 51 | USE par_ice_2 |
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| 52 | #endif |
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[15603] | 53 | USE stopack |
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[888] | 54 | |
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| 55 | IMPLICIT NONE |
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| 56 | PRIVATE |
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| 57 | |
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[2715] | 58 | PUBLIC sbc_blk_core ! routine called in sbcmod module |
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[5407] | 59 | #if defined key_lim2 || defined key_lim3 |
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| 60 | PUBLIC blk_ice_core_tau ! routine called in sbc_ice_lim module |
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| 61 | PUBLIC blk_ice_core_flx ! routine called in sbc_ice_lim module |
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| 62 | #endif |
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[3294] | 63 | PUBLIC turb_core_2z ! routine calles in sbcblk_mfs module |
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[2715] | 64 | |
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[4990] | 65 | INTEGER , PARAMETER :: jpfld = 9 ! maximum number of files to read |
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[888] | 66 | INTEGER , PARAMETER :: jp_wndi = 1 ! index of 10m wind velocity (i-component) (m/s) at T-point |
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| 67 | INTEGER , PARAMETER :: jp_wndj = 2 ! index of 10m wind velocity (j-component) (m/s) at T-point |
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[3625] | 68 | INTEGER , PARAMETER :: jp_humi = 3 ! index of specific humidity ( % ) |
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[888] | 69 | INTEGER , PARAMETER :: jp_qsr = 4 ! index of solar heat (W/m2) |
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| 70 | INTEGER , PARAMETER :: jp_qlw = 5 ! index of Long wave (W/m2) |
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| 71 | INTEGER , PARAMETER :: jp_tair = 6 ! index of 10m air temperature (Kelvin) |
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| 72 | INTEGER , PARAMETER :: jp_prec = 7 ! index of total precipitation (rain+snow) (Kg/m2/s) |
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| 73 | INTEGER , PARAMETER :: jp_snow = 8 ! index of snow (solid prcipitation) (kg/m2/s) |
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[1705] | 74 | INTEGER , PARAMETER :: jp_tdif = 9 ! index of tau diff associated to HF tau (N/m2) at T-point |
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[4990] | 75 | |
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[888] | 76 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf ! structure of input fields (file informations, fields read) |
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[4990] | 77 | |
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[1601] | 78 | ! !!! CORE bulk parameters |
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[888] | 79 | REAL(wp), PARAMETER :: rhoa = 1.22 ! air density |
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| 80 | REAL(wp), PARAMETER :: cpa = 1000.5 ! specific heat of air |
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| 81 | REAL(wp), PARAMETER :: Lv = 2.5e6 ! latent heat of vaporization |
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| 82 | REAL(wp), PARAMETER :: Ls = 2.839e6 ! latent heat of sublimation |
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| 83 | REAL(wp), PARAMETER :: Stef = 5.67e-8 ! Stefan Boltzmann constant |
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[4161] | 84 | REAL(wp), PARAMETER :: Cice = 1.4e-3 ! iovi 1.63e-3 ! transfer coefficient over ice |
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[3625] | 85 | REAL(wp), PARAMETER :: albo = 0.066 ! ocean albedo assumed to be constant |
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[888] | 86 | |
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[2528] | 87 | ! !!* Namelist namsbc_core : CORE bulk parameters |
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[4147] | 88 | LOGICAL :: ln_taudif ! logical flag to use the "mean of stress module - module of mean stress" data |
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| 89 | REAL(wp) :: rn_pfac ! multiplication factor for precipitation |
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[4161] | 90 | REAL(wp) :: rn_efac ! multiplication factor for evaporation (clem) |
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| 91 | REAL(wp) :: rn_vfac ! multiplication factor for ice/ocean velocity in the calculation of wind stress (clem) |
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[15603] | 92 | REAL(wp), ALLOCATABLE, SAVE :: rn_vfac0(:,:) ! multiplication factor for ice/ocean velocity in the calculation of wind stress (clem) |
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[4245] | 93 | REAL(wp) :: rn_zqt ! z(q,t) : height of humidity and temperature measurements |
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| 94 | REAL(wp) :: rn_zu ! z(u) : height of wind measurements |
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[15603] | 95 | REAL(wp), PUBLIC :: rn_sfac ! multiplication factor for snow precipitation over sea-ice |
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[888] | 96 | |
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| 97 | !! * Substitutions |
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| 98 | # include "domzgr_substitute.h90" |
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| 99 | # include "vectopt_loop_substitute.h90" |
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| 100 | !!---------------------------------------------------------------------- |
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[4990] | 101 | !! NEMO/OPA 3.7 , NEMO-consortium (2014) |
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[1156] | 102 | !! $Id$ |
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[2528] | 103 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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[888] | 104 | !!---------------------------------------------------------------------- |
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| 105 | CONTAINS |
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| 106 | |
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| 107 | SUBROUTINE sbc_blk_core( kt ) |
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| 108 | !!--------------------------------------------------------------------- |
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| 109 | !! *** ROUTINE sbc_blk_core *** |
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[4990] | 110 | !! |
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[888] | 111 | !! ** Purpose : provide at each time step the surface ocean fluxes |
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[4990] | 112 | !! (momentum, heat, freshwater and runoff) |
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[888] | 113 | !! |
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[1695] | 114 | !! ** Method : (1) READ each fluxes in NetCDF files: |
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| 115 | !! the 10m wind velocity (i-component) (m/s) at T-point |
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| 116 | !! the 10m wind velocity (j-component) (m/s) at T-point |
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[3625] | 117 | !! the 10m or 2m specific humidity ( % ) |
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[1695] | 118 | !! the solar heat (W/m2) |
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| 119 | !! the Long wave (W/m2) |
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[3625] | 120 | !! the 10m or 2m air temperature (Kelvin) |
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[1695] | 121 | !! the total precipitation (rain+snow) (Kg/m2/s) |
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| 122 | !! the snow (solid prcipitation) (kg/m2/s) |
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[3625] | 123 | !! the tau diff associated to HF tau (N/m2) at T-point (ln_taudif=T) |
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[1695] | 124 | !! (2) CALL blk_oce_core |
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[888] | 125 | !! |
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| 126 | !! C A U T I O N : never mask the surface stress fields |
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[3625] | 127 | !! the stress is assumed to be in the (i,j) mesh referential |
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[888] | 128 | !! |
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| 129 | !! ** Action : defined at each time-step at the air-sea interface |
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[1695] | 130 | !! - utau, vtau i- and j-component of the wind stress |
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[4990] | 131 | !! - taum wind stress module at T-point |
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| 132 | !! - wndm wind speed module at T-point over free ocean or leads in presence of sea-ice |
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[3625] | 133 | !! - qns, qsr non-solar and solar heat fluxes |
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| 134 | !! - emp upward mass flux (evapo. - precip.) |
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| 135 | !! - sfx salt flux due to freezing/melting (non-zero only if ice is present) |
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| 136 | !! (set in limsbc(_2).F90) |
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[4990] | 137 | !! |
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| 138 | !! ** References : Large & Yeager, 2004 / Large & Yeager, 2008 |
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| 139 | !! Brodeau et al. Ocean Modelling 2010 |
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[888] | 140 | !!---------------------------------------------------------------------- |
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[2715] | 141 | INTEGER, INTENT(in) :: kt ! ocean time step |
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[4990] | 142 | ! |
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[888] | 143 | INTEGER :: ierror ! return error code |
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[1200] | 144 | INTEGER :: ifpr ! dummy loop indice |
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[1705] | 145 | INTEGER :: jfld ! dummy loop arguments |
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[4147] | 146 | INTEGER :: ios ! Local integer output status for namelist read |
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[4990] | 147 | ! |
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[888] | 148 | CHARACTER(len=100) :: cn_dir ! Root directory for location of core files |
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| 149 | TYPE(FLD_N), DIMENSION(jpfld) :: slf_i ! array of namelist informations on the fields to read |
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[4161] | 150 | TYPE(FLD_N) :: sn_wndi, sn_wndj, sn_humi, sn_qsr ! informations about the fields to be read |
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| 151 | TYPE(FLD_N) :: sn_qlw , sn_tair, sn_prec, sn_snow ! " " |
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| 152 | TYPE(FLD_N) :: sn_tdif ! " " |
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[4990] | 153 | NAMELIST/namsbc_core/ cn_dir , ln_taudif, rn_pfac, rn_efac, rn_vfac, & |
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[1705] | 154 | & sn_wndi, sn_wndj, sn_humi , sn_qsr , & |
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[4245] | 155 | & sn_qlw , sn_tair, sn_prec , sn_snow, & |
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[15603] | 156 | & sn_tdif, rn_zqt, rn_zu, rn_sfac |
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[888] | 157 | !!--------------------------------------------------------------------- |
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[4990] | 158 | ! |
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[888] | 159 | ! ! ====================== ! |
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| 160 | IF( kt == nit000 ) THEN ! First call kt=nit000 ! |
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| 161 | ! ! ====================== ! |
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[1601] | 162 | ! |
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[15603] | 163 | rn_sfac = 1._wp ! Default to one if missing from namelist |
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[4147] | 164 | REWIND( numnam_ref ) ! Namelist namsbc_core in reference namelist : CORE bulk parameters |
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| 165 | READ ( numnam_ref, namsbc_core, IOSTAT = ios, ERR = 901) |
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| 166 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_core in reference namelist', lwp ) |
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[4990] | 167 | ! |
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[4147] | 168 | REWIND( numnam_cfg ) ! Namelist namsbc_core in configuration namelist : CORE bulk parameters |
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| 169 | READ ( numnam_cfg, namsbc_core, IOSTAT = ios, ERR = 902 ) |
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| 170 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_core in configuration namelist', lwp ) |
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| 171 | |
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[12555] | 172 | IF(lwm .AND. nprint > 2) WRITE( numond, namsbc_core ) |
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[2528] | 173 | ! ! check: do we plan to use ln_dm2dc with non-daily forcing? |
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[4990] | 174 | IF( ln_dm2dc .AND. sn_qsr%nfreqh /= 24 ) & |
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| 175 | & CALL ctl_stop( 'sbc_blk_core: ln_dm2dc can be activated only with daily short-wave forcing' ) |
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[2528] | 176 | IF( ln_dm2dc .AND. sn_qsr%ln_tint ) THEN |
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| 177 | CALL ctl_warn( 'sbc_blk_core: ln_dm2dc is taking care of the temporal interpolation of daily qsr', & |
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[4990] | 178 | & ' ==> We force time interpolation = .false. for qsr' ) |
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[2528] | 179 | sn_qsr%ln_tint = .false. |
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| 180 | ENDIF |
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| 181 | ! ! store namelist information in an array |
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[888] | 182 | slf_i(jp_wndi) = sn_wndi ; slf_i(jp_wndj) = sn_wndj |
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| 183 | slf_i(jp_qsr ) = sn_qsr ; slf_i(jp_qlw ) = sn_qlw |
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| 184 | slf_i(jp_tair) = sn_tair ; slf_i(jp_humi) = sn_humi |
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| 185 | slf_i(jp_prec) = sn_prec ; slf_i(jp_snow) = sn_snow |
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[1705] | 186 | slf_i(jp_tdif) = sn_tdif |
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[4990] | 187 | ! |
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[2528] | 188 | lhftau = ln_taudif ! do we use HF tau information? |
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[1705] | 189 | jfld = jpfld - COUNT( (/.NOT. lhftau/) ) |
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| 190 | ! |
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[2528] | 191 | ALLOCATE( sf(jfld), STAT=ierror ) ! set sf structure |
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[2715] | 192 | IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_blk_core: unable to allocate sf structure' ) |
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[1705] | 193 | DO ifpr= 1, jfld |
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[2528] | 194 | ALLOCATE( sf(ifpr)%fnow(jpi,jpj,1) ) |
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[2715] | 195 | IF( slf_i(ifpr)%ln_tint ) ALLOCATE( sf(ifpr)%fdta(jpi,jpj,1,2) ) |
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[1200] | 196 | END DO |
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[2528] | 197 | ! ! fill sf with slf_i and control print |
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| 198 | CALL fld_fill( sf, slf_i, cn_dir, 'sbc_blk_core', 'flux formulation for ocean surface boundary condition', 'namsbc_core' ) |
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[1601] | 199 | ! |
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[3625] | 200 | sfx(:,:) = 0._wp ! salt flux; zero unless ice is present (computed in limsbc(_2).F90) |
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| 201 | ! |
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[15603] | 202 | ALLOCATE ( rn_vfac0(jpi,jpj) ) |
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| 203 | rn_vfac0(:,:) = rn_vfac |
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| 204 | ! |
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[888] | 205 | ENDIF |
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| 206 | |
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[15603] | 207 | #if defined key_traldf_c2d || key_traldf_c3d |
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| 208 | IF( ln_stopack .AND. nn_spp_relw > 0 ) THEN |
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| 209 | rn_vfac0(:,:) = rn_vfac |
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| 210 | CALL spp_gen(kt, rn_vfac0, nn_spp_relw, rn_relw_sd, jk_spp_relw ) |
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| 211 | ENDIF |
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| 212 | #else |
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| 213 | IF ( ln_stopack .AND. nn_spp_relw > 0 ) & |
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| 214 | & CALL ctl_stop( 'sbc_blk_core: parameter perturbation will only work with '// & |
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| 215 | 'key_traldf_c2d or key_traldf_c3d') |
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| 216 | #endif |
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| 217 | |
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[3625] | 218 | CALL fld_read( kt, nn_fsbc, sf ) ! input fields provided at the current time-step |
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[888] | 219 | |
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[3625] | 220 | ! ! compute the surface ocean fluxes using CORE bulk formulea |
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[3680] | 221 | IF( MOD( kt - 1, nn_fsbc ) == 0 ) CALL blk_oce_core( kt, sf, sst_m, ssu_m, ssv_m ) |
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[3294] | 222 | |
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| 223 | #if defined key_cice |
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| 224 | IF( MOD( kt - 1, nn_fsbc ) == 0 ) THEN |
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[15603] | 225 | qlw_ice(:,:,1) = sf(jp_qlw)%fnow(:,:,1) |
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[6823] | 226 | IF( ln_dm2dc ) THEN ; qsr_ice(:,:,1) = sbc_dcy( sf(jp_qsr)%fnow(:,:,1) ) |
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| 227 | ELSE ; qsr_ice(:,:,1) = sf(jp_qsr)%fnow(:,:,1) |
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| 228 | ENDIF |
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[15603] | 229 | tatm_ice(:,:) = sf(jp_tair)%fnow(:,:,1) |
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[3294] | 230 | qatm_ice(:,:) = sf(jp_humi)%fnow(:,:,1) |
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| 231 | tprecip(:,:) = sf(jp_prec)%fnow(:,:,1) * rn_pfac |
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| 232 | sprecip(:,:) = sf(jp_snow)%fnow(:,:,1) * rn_pfac |
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| 233 | wndi_ice(:,:) = sf(jp_wndi)%fnow(:,:,1) |
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| 234 | wndj_ice(:,:) = sf(jp_wndj)%fnow(:,:,1) |
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| 235 | ENDIF |
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| 236 | #endif |
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[2528] | 237 | ! |
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[888] | 238 | END SUBROUTINE sbc_blk_core |
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[15603] | 239 | |
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| 240 | |
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[3680] | 241 | SUBROUTINE blk_oce_core( kt, sf, pst, pu, pv ) |
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[888] | 242 | !!--------------------------------------------------------------------- |
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| 243 | !! *** ROUTINE blk_core *** |
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| 244 | !! |
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| 245 | !! ** Purpose : provide the momentum, heat and freshwater fluxes at |
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| 246 | !! the ocean surface at each time step |
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| 247 | !! |
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| 248 | !! ** Method : CORE bulk formulea for the ocean using atmospheric |
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| 249 | !! fields read in sbc_read |
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[15603] | 250 | !! |
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[888] | 251 | !! ** Outputs : - utau : i-component of the stress at U-point (N/m2) |
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| 252 | !! - vtau : j-component of the stress at V-point (N/m2) |
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[1695] | 253 | !! - taum : Wind stress module at T-point (N/m2) |
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| 254 | !! - wndm : Wind speed module at T-point (m/s) |
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[888] | 255 | !! - qsr : Solar heat flux over the ocean (W/m2) |
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| 256 | !! - qns : Non Solar heat flux over the ocean (W/m2) |
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[3625] | 257 | !! - emp : evaporation minus precipitation (kg/m2/s) |
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[1242] | 258 | !! |
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| 259 | !! ** Nota : sf has to be a dummy argument for AGRIF on NEC |
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[888] | 260 | !!--------------------------------------------------------------------- |
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[3680] | 261 | INTEGER , INTENT(in ) :: kt ! time step index |
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| 262 | TYPE(fld), INTENT(inout), DIMENSION(:) :: sf ! input data |
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| 263 | REAL(wp) , INTENT(in) , DIMENSION(:,:) :: pst ! surface temperature [Celcius] |
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| 264 | REAL(wp) , INTENT(in) , DIMENSION(:,:) :: pu ! surface current at U-point (i-component) [m/s] |
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| 265 | REAL(wp) , INTENT(in) , DIMENSION(:,:) :: pv ! surface current at V-point (j-component) [m/s] |
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[2715] | 266 | ! |
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| 267 | INTEGER :: ji, jj ! dummy loop indices |
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| 268 | REAL(wp) :: zcoef_qsatw, zztmp ! local variable |
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[3294] | 269 | REAL(wp), DIMENSION(:,:), POINTER :: zwnd_i, zwnd_j ! wind speed components at T-point |
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| 270 | REAL(wp), DIMENSION(:,:), POINTER :: zqsatw ! specific humidity at pst |
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| 271 | REAL(wp), DIMENSION(:,:), POINTER :: zqlw, zqsb ! long wave and sensible heat fluxes |
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| 272 | REAL(wp), DIMENSION(:,:), POINTER :: zqla, zevap ! latent heat fluxes and evaporation |
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| 273 | REAL(wp), DIMENSION(:,:), POINTER :: Cd ! transfer coefficient for momentum (tau) |
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| 274 | REAL(wp), DIMENSION(:,:), POINTER :: Ch ! transfer coefficient for sensible heat (Q_sens) |
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| 275 | REAL(wp), DIMENSION(:,:), POINTER :: Ce ! tansfert coefficient for evaporation (Q_lat) |
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| 276 | REAL(wp), DIMENSION(:,:), POINTER :: zst ! surface temperature in Kelvin |
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| 277 | REAL(wp), DIMENSION(:,:), POINTER :: zt_zu ! air temperature at wind speed height |
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| 278 | REAL(wp), DIMENSION(:,:), POINTER :: zq_zu ! air spec. hum. at wind speed height |
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[888] | 279 | !!--------------------------------------------------------------------- |
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[2715] | 280 | ! |
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[3294] | 281 | IF( nn_timing == 1 ) CALL timing_start('blk_oce_core') |
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| 282 | ! |
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| 283 | CALL wrk_alloc( jpi,jpj, zwnd_i, zwnd_j, zqsatw, zqlw, zqsb, zqla, zevap ) |
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| 284 | CALL wrk_alloc( jpi,jpj, Cd, Ch, Ce, zst, zt_zu, zq_zu ) |
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| 285 | ! |
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[888] | 286 | ! local scalars ( place there for vector optimisation purposes) |
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| 287 | zcoef_qsatw = 0.98 * 640380. / rhoa |
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[15603] | 288 | |
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[3625] | 289 | zst(:,:) = pst(:,:) + rt0 ! convert SST from Celcius to Kelvin (and set minimum value far above 0 K) |
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[888] | 290 | |
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| 291 | ! ----------------------------------------------------------------------------- ! |
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| 292 | ! 0 Wind components and module at T-point relative to the moving ocean ! |
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| 293 | ! ----------------------------------------------------------------------------- ! |
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[1000] | 294 | |
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[888] | 295 | ! ... components ( U10m - U_oce ) at T-point (unmasked) |
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[15603] | 296 | zwnd_i(:,:) = 0.e0 |
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[888] | 297 | zwnd_j(:,:) = 0.e0 |
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[3680] | 298 | #if defined key_cyclone |
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[4990] | 299 | CALL wnd_cyc( kt, zwnd_i, zwnd_j ) ! add analytical tropical cyclone (Vincent et al. JGR 2012) |
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[3680] | 300 | DO jj = 2, jpjm1 |
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| 301 | DO ji = fs_2, fs_jpim1 ! vect. opt. |
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| 302 | sf(jp_wndi)%fnow(ji,jj,1) = sf(jp_wndi)%fnow(ji,jj,1) + zwnd_i(ji,jj) |
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| 303 | sf(jp_wndj)%fnow(ji,jj,1) = sf(jp_wndj)%fnow(ji,jj,1) + zwnd_j(ji,jj) |
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| 304 | END DO |
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| 305 | END DO |
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| 306 | #endif |
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[888] | 307 | DO jj = 2, jpjm1 |
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| 308 | DO ji = fs_2, fs_jpim1 ! vect. opt. |
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[15603] | 309 | zwnd_i(ji,jj) = ( sf(jp_wndi)%fnow(ji,jj,1) - rn_vfac0(ji,jj) * 0.5 * ( pu(ji-1,jj ) + pu(ji,jj) ) ) |
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| 310 | zwnd_j(ji,jj) = ( sf(jp_wndj)%fnow(ji,jj,1) - rn_vfac0(ji,jj) * 0.5 * ( pv(ji ,jj-1) + pv(ji,jj) ) ) |
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[888] | 311 | END DO |
---|
| 312 | END DO |
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| 313 | CALL lbc_lnk( zwnd_i(:,:) , 'T', -1. ) |
---|
| 314 | CALL lbc_lnk( zwnd_j(:,:) , 'T', -1. ) |
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| 315 | ! ... scalar wind ( = | U10m - U_oce | ) at T-point (masked) |
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[1025] | 316 | wndm(:,:) = SQRT( zwnd_i(:,:) * zwnd_i(:,:) & |
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| 317 | & + zwnd_j(:,:) * zwnd_j(:,:) ) * tmask(:,:,1) |
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[888] | 318 | |
---|
| 319 | ! ----------------------------------------------------------------------------- ! |
---|
| 320 | ! I Radiative FLUXES ! |
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| 321 | ! ----------------------------------------------------------------------------- ! |
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[4990] | 322 | |
---|
[2528] | 323 | ! ocean albedo assumed to be constant + modify now Qsr to include the diurnal cycle ! Short Wave |
---|
| 324 | zztmp = 1. - albo |
---|
| 325 | IF( ln_dm2dc ) THEN ; qsr(:,:) = zztmp * sbc_dcy( sf(jp_qsr)%fnow(:,:,1) ) * tmask(:,:,1) |
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| 326 | ELSE ; qsr(:,:) = zztmp * sf(jp_qsr)%fnow(:,:,1) * tmask(:,:,1) |
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| 327 | ENDIF |
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[5385] | 328 | |
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[2528] | 329 | zqlw(:,:) = ( sf(jp_qlw)%fnow(:,:,1) - Stef * zst(:,:)*zst(:,:)*zst(:,:)*zst(:,:) ) * tmask(:,:,1) ! Long Wave |
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[888] | 330 | ! ----------------------------------------------------------------------------- ! |
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| 331 | ! II Turbulent FLUXES ! |
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| 332 | ! ----------------------------------------------------------------------------- ! |
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| 333 | |
---|
| 334 | ! ... specific humidity at SST and IST |
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[4990] | 335 | zqsatw(:,:) = zcoef_qsatw * EXP( -5107.4 / zst(:,:) ) |
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[888] | 336 | |
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| 337 | ! ... NCAR Bulk formulae, computation of Cd, Ch, Ce at T-point : |
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[4990] | 338 | CALL turb_core_2z( rn_zqt, rn_zu, zst, sf(jp_tair)%fnow, zqsatw, sf(jp_humi)%fnow, wndm, & |
---|
| 339 | & Cd, Ch, Ce, zt_zu, zq_zu ) |
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[15603] | 340 | |
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[1695] | 341 | ! ... tau module, i and j component |
---|
| 342 | DO jj = 1, jpj |
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| 343 | DO ji = 1, jpi |
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| 344 | zztmp = rhoa * wndm(ji,jj) * Cd(ji,jj) |
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| 345 | taum (ji,jj) = zztmp * wndm (ji,jj) |
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| 346 | zwnd_i(ji,jj) = zztmp * zwnd_i(ji,jj) |
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| 347 | zwnd_j(ji,jj) = zztmp * zwnd_j(ji,jj) |
---|
| 348 | END DO |
---|
| 349 | END DO |
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[1705] | 350 | |
---|
| 351 | ! ... add the HF tau contribution to the wind stress module? |
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[4990] | 352 | IF( lhftau ) THEN |
---|
[2528] | 353 | taum(:,:) = taum(:,:) + sf(jp_tdif)%fnow(:,:,1) |
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[1705] | 354 | ENDIF |
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| 355 | CALL iom_put( "taum_oce", taum ) ! output wind stress module |
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| 356 | |
---|
[888] | 357 | ! ... utau, vtau at U- and V_points, resp. |
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| 358 | ! Note the use of 0.5*(2-umask) in order to unmask the stress along coastlines |
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[4990] | 359 | ! Note the use of MAX(tmask(i,j),tmask(i+1,j) is to mask tau over ice shelves |
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[888] | 360 | DO jj = 1, jpjm1 |
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| 361 | DO ji = 1, fs_jpim1 |
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[4990] | 362 | utau(ji,jj) = 0.5 * ( 2. - umask(ji,jj,1) ) * ( zwnd_i(ji,jj) + zwnd_i(ji+1,jj ) ) & |
---|
| 363 | & * MAX(tmask(ji,jj,1),tmask(ji+1,jj,1)) |
---|
| 364 | vtau(ji,jj) = 0.5 * ( 2. - vmask(ji,jj,1) ) * ( zwnd_j(ji,jj) + zwnd_j(ji ,jj+1) ) & |
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| 365 | & * MAX(tmask(ji,jj,1),tmask(ji,jj+1,1)) |
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[888] | 366 | END DO |
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| 367 | END DO |
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| 368 | CALL lbc_lnk( utau(:,:), 'U', -1. ) |
---|
| 369 | CALL lbc_lnk( vtau(:,:), 'V', -1. ) |
---|
| 370 | |
---|
[15603] | 371 | |
---|
[888] | 372 | ! Turbulent fluxes over ocean |
---|
| 373 | ! ----------------------------- |
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[4990] | 374 | IF( ABS( rn_zu - rn_zqt) < 0.01_wp ) THEN |
---|
| 375 | !! q_air and t_air are (or "are almost") given at 10m (wind reference height) |
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| 376 | zevap(:,:) = rn_efac*MAX( 0._wp, rhoa*Ce(:,:)*( zqsatw(:,:) - sf(jp_humi)%fnow(:,:,1) )*wndm(:,:) ) ! Evaporation |
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| 377 | zqsb (:,:) = cpa*rhoa*Ch(:,:)*( zst (:,:) - sf(jp_tair)%fnow(:,:,1) )*wndm(:,:) ! Sensible Heat |
---|
[888] | 378 | ELSE |
---|
[4990] | 379 | !! q_air and t_air are not given at 10m (wind reference height) |
---|
| 380 | ! Values of temp. and hum. adjusted to height of wind during bulk algorithm iteration must be used!!! |
---|
| 381 | zevap(:,:) = rn_efac*MAX( 0._wp, rhoa*Ce(:,:)*( zqsatw(:,:) - zq_zu(:,:) )*wndm(:,:) ) ! Evaporation |
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| 382 | zqsb (:,:) = cpa*rhoa*Ch(:,:)*( zst (:,:) - zt_zu(:,:) )*wndm(:,:) ! Sensible Heat |
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[888] | 383 | ENDIF |
---|
| 384 | zqla (:,:) = Lv * zevap(:,:) ! Latent Heat |
---|
| 385 | |
---|
| 386 | IF(ln_ctl) THEN |
---|
[1025] | 387 | CALL prt_ctl( tab2d_1=zqla , clinfo1=' blk_oce_core: zqla : ', tab2d_2=Ce , clinfo2=' Ce : ' ) |
---|
| 388 | CALL prt_ctl( tab2d_1=zqsb , clinfo1=' blk_oce_core: zqsb : ', tab2d_2=Ch , clinfo2=' Ch : ' ) |
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| 389 | CALL prt_ctl( tab2d_1=zqlw , clinfo1=' blk_oce_core: zqlw : ', tab2d_2=qsr, clinfo2=' qsr : ' ) |
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| 390 | CALL prt_ctl( tab2d_1=zqsatw, clinfo1=' blk_oce_core: zqsatw : ', tab2d_2=zst, clinfo2=' zst : ' ) |
---|
| 391 | CALL prt_ctl( tab2d_1=utau , clinfo1=' blk_oce_core: utau : ', mask1=umask, & |
---|
| 392 | & tab2d_2=vtau , clinfo2= ' vtau : ' , mask2=vmask ) |
---|
| 393 | CALL prt_ctl( tab2d_1=wndm , clinfo1=' blk_oce_core: wndm : ') |
---|
| 394 | CALL prt_ctl( tab2d_1=zst , clinfo1=' blk_oce_core: zst : ') |
---|
[888] | 395 | ENDIF |
---|
[15603] | 396 | |
---|
[888] | 397 | ! ----------------------------------------------------------------------------- ! |
---|
| 398 | ! III Total FLUXES ! |
---|
| 399 | ! ----------------------------------------------------------------------------- ! |
---|
[4990] | 400 | ! |
---|
[3625] | 401 | emp (:,:) = ( zevap(:,:) & ! mass flux (evap. - precip.) |
---|
| 402 | & - sf(jp_prec)%fnow(:,:,1) * rn_pfac ) * tmask(:,:,1) |
---|
[5407] | 403 | ! |
---|
[15603] | 404 | qns(:,:) = zqlw(:,:) - zqsb(:,:) - zqla(:,:) & ! Downward Non Solar |
---|
[3772] | 405 | & - sf(jp_snow)%fnow(:,:,1) * rn_pfac * lfus & ! remove latent melting heat for solid precip |
---|
| 406 | & - zevap(:,:) * pst(:,:) * rcp & ! remove evap heat content at SST |
---|
| 407 | & + ( sf(jp_prec)%fnow(:,:,1) - sf(jp_snow)%fnow(:,:,1) ) * rn_pfac & ! add liquid precip heat content at Tair |
---|
[4990] | 408 | & * ( sf(jp_tair)%fnow(:,:,1) - rt0 ) * rcp & |
---|
[3772] | 409 | & + sf(jp_snow)%fnow(:,:,1) * rn_pfac & ! add solid precip heat content at min(Tair,Tsnow) |
---|
[4990] | 410 | & * ( MIN( sf(jp_tair)%fnow(:,:,1), rt0_snow ) - rt0 ) * cpic * tmask(:,:,1) |
---|
[888] | 411 | ! |
---|
[5407] | 412 | #if defined key_lim3 |
---|
| 413 | qns_oce(:,:) = zqlw(:,:) - zqsb(:,:) - zqla(:,:) ! non solar without emp (only needed by LIM3) |
---|
| 414 | qsr_oce(:,:) = qsr(:,:) |
---|
| 415 | #endif |
---|
[1482] | 416 | ! |
---|
[5407] | 417 | IF ( nn_ice == 0 ) THEN |
---|
| 418 | CALL iom_put( "qlw_oce" , zqlw ) ! output downward longwave heat over the ocean |
---|
| 419 | CALL iom_put( "qsb_oce" , - zqsb ) ! output downward sensible heat over the ocean |
---|
| 420 | CALL iom_put( "qla_oce" , - zqla ) ! output downward latent heat over the ocean |
---|
| 421 | CALL iom_put( "qemp_oce", qns-zqlw+zqsb+zqla ) ! output downward heat content of E-P over the ocean |
---|
| 422 | CALL iom_put( "qns_oce" , qns ) ! output downward non solar heat over the ocean |
---|
| 423 | CALL iom_put( "qsr_oce" , qsr ) ! output downward solar heat over the ocean |
---|
| 424 | CALL iom_put( "qt_oce" , qns+qsr ) ! output total downward heat over the ocean |
---|
[6487] | 425 | tprecip(:,:) = sf(jp_prec)%fnow(:,:,1) * rn_pfac ! output total precipitation [kg/m2/s] |
---|
| 426 | sprecip(:,:) = sf(jp_snow)%fnow(:,:,1) * rn_pfac ! output solid precipitation [kg/m2/s] |
---|
| 427 | CALL iom_put( 'snowpre', sprecip * 86400. ) ! Snow |
---|
| 428 | CALL iom_put( 'precip' , tprecip * 86400. ) ! Total precipitation |
---|
[5407] | 429 | ENDIF |
---|
| 430 | ! |
---|
[1482] | 431 | IF(ln_ctl) THEN |
---|
| 432 | CALL prt_ctl(tab2d_1=zqsb , clinfo1=' blk_oce_core: zqsb : ', tab2d_2=zqlw , clinfo2=' zqlw : ') |
---|
| 433 | CALL prt_ctl(tab2d_1=zqla , clinfo1=' blk_oce_core: zqla : ', tab2d_2=qsr , clinfo2=' qsr : ') |
---|
| 434 | CALL prt_ctl(tab2d_1=pst , clinfo1=' blk_oce_core: pst : ', tab2d_2=emp , clinfo2=' emp : ') |
---|
| 435 | CALL prt_ctl(tab2d_1=utau , clinfo1=' blk_oce_core: utau : ', mask1=umask, & |
---|
| 436 | & tab2d_2=vtau , clinfo2= ' vtau : ' , mask2=vmask ) |
---|
| 437 | ENDIF |
---|
| 438 | ! |
---|
[3294] | 439 | CALL wrk_dealloc( jpi,jpj, zwnd_i, zwnd_j, zqsatw, zqlw, zqsb, zqla, zevap ) |
---|
| 440 | CALL wrk_dealloc( jpi,jpj, Cd, Ch, Ce, zst, zt_zu, zq_zu ) |
---|
[2715] | 441 | ! |
---|
[3294] | 442 | IF( nn_timing == 1 ) CALL timing_stop('blk_oce_core') |
---|
| 443 | ! |
---|
[888] | 444 | END SUBROUTINE blk_oce_core |
---|
[15603] | 445 | |
---|
| 446 | |
---|
[5407] | 447 | #if defined key_lim2 || defined key_lim3 |
---|
| 448 | SUBROUTINE blk_ice_core_tau |
---|
[888] | 449 | !!--------------------------------------------------------------------- |
---|
[5407] | 450 | !! *** ROUTINE blk_ice_core_tau *** |
---|
[888] | 451 | !! |
---|
| 452 | !! ** Purpose : provide the surface boundary condition over sea-ice |
---|
| 453 | !! |
---|
[5407] | 454 | !! ** Method : compute momentum using CORE bulk |
---|
| 455 | !! formulea, ice variables and read atmospheric fields. |
---|
[888] | 456 | !! NB: ice drag coefficient is assumed to be a constant |
---|
| 457 | !!--------------------------------------------------------------------- |
---|
[5407] | 458 | INTEGER :: ji, jj ! dummy loop indices |
---|
| 459 | REAL(wp) :: zcoef_wnorm, zcoef_wnorm2 |
---|
| 460 | REAL(wp) :: zwnorm_f, zwndi_f , zwndj_f ! relative wind module and components at F-point |
---|
| 461 | REAL(wp) :: zwndi_t , zwndj_t ! relative wind components at T-point |
---|
[888] | 462 | !!--------------------------------------------------------------------- |
---|
[3294] | 463 | ! |
---|
[5407] | 464 | IF( nn_timing == 1 ) CALL timing_start('blk_ice_core_tau') |
---|
[3294] | 465 | ! |
---|
[888] | 466 | ! local scalars ( place there for vector optimisation purposes) |
---|
[2528] | 467 | zcoef_wnorm = rhoa * Cice |
---|
[888] | 468 | zcoef_wnorm2 = rhoa * Cice * 0.5 |
---|
| 469 | |
---|
| 470 | !!gm brutal.... |
---|
[5407] | 471 | utau_ice (:,:) = 0._wp |
---|
| 472 | vtau_ice (:,:) = 0._wp |
---|
| 473 | wndm_ice (:,:) = 0._wp |
---|
[888] | 474 | !!gm end |
---|
| 475 | |
---|
| 476 | ! ----------------------------------------------------------------------------- ! |
---|
| 477 | ! Wind components and module relative to the moving ocean ( U10m - U_ice ) ! |
---|
| 478 | ! ----------------------------------------------------------------------------- ! |
---|
[5407] | 479 | SELECT CASE( cp_ice_msh ) |
---|
[2528] | 480 | CASE( 'I' ) ! B-grid ice dynamics : I-point (i.e. F-point with sea-ice indexation) |
---|
[888] | 481 | ! and scalar wind at T-point ( = | U10m - U_ice | ) (masked) |
---|
| 482 | DO jj = 2, jpjm1 |
---|
[2528] | 483 | DO ji = 2, jpim1 ! B grid : NO vector opt |
---|
[888] | 484 | ! ... scalar wind at I-point (fld being at T-point) |
---|
[15603] | 485 | zwndi_f = 0.25 * ( sf(jp_wndi)%fnow(ji-1,jj ,1) + sf(jp_wndi)%fnow(ji ,jj ,1) & |
---|
| 486 | & + sf(jp_wndi)%fnow(ji-1,jj-1,1) + sf(jp_wndi)%fnow(ji ,jj-1,1) ) & |
---|
| 487 | & - rn_vfac0(ji,jj) * u_ice(ji,jj) |
---|
| 488 | zwndj_f = 0.25 * ( sf(jp_wndj)%fnow(ji-1,jj ,1) + sf(jp_wndj)%fnow(ji ,jj ,1) & |
---|
| 489 | & + sf(jp_wndj)%fnow(ji-1,jj-1,1) + sf(jp_wndj)%fnow(ji ,jj-1,1) ) & |
---|
| 490 | & - rn_vfac0(ji,jj) * v_ice(ji,jj) |
---|
[888] | 491 | zwnorm_f = zcoef_wnorm * SQRT( zwndi_f * zwndi_f + zwndj_f * zwndj_f ) |
---|
| 492 | ! ... ice stress at I-point |
---|
[5407] | 493 | utau_ice(ji,jj) = zwnorm_f * zwndi_f |
---|
| 494 | vtau_ice(ji,jj) = zwnorm_f * zwndj_f |
---|
[888] | 495 | ! ... scalar wind at T-point (fld being at T-point) |
---|
[15603] | 496 | zwndi_t = sf(jp_wndi)%fnow(ji,jj,1) & |
---|
| 497 | & - rn_vfac0(ji,jj) * 0.25 * ( u_ice(ji,jj+1) + u_ice(ji+1,jj+1) & |
---|
| 498 | & + u_ice(ji,jj ) + u_ice(ji+1,jj ) ) |
---|
| 499 | zwndj_t = sf(jp_wndj)%fnow(ji,jj,1) & |
---|
| 500 | & - rn_vfac0(ji,jj) * 0.25 * ( v_ice(ji,jj+1) + v_ice(ji+1,jj+1) & |
---|
| 501 | & + v_ice(ji,jj ) + v_ice(ji+1,jj ) ) |
---|
[5407] | 502 | wndm_ice(ji,jj) = SQRT( zwndi_t * zwndi_t + zwndj_t * zwndj_t ) * tmask(ji,jj,1) |
---|
[888] | 503 | END DO |
---|
| 504 | END DO |
---|
[5407] | 505 | CALL lbc_lnk( utau_ice, 'I', -1. ) |
---|
| 506 | CALL lbc_lnk( vtau_ice, 'I', -1. ) |
---|
| 507 | CALL lbc_lnk( wndm_ice, 'T', 1. ) |
---|
[888] | 508 | ! |
---|
| 509 | CASE( 'C' ) ! C-grid ice dynamics : U & V-points (same as ocean) |
---|
| 510 | DO jj = 2, jpj |
---|
| 511 | DO ji = fs_2, jpi ! vect. opt. |
---|
[15603] | 512 | zwndi_t = ( sf(jp_wndi)%fnow(ji,jj,1) - rn_vfac0(ji,jj) * 0.5 * ( u_ice(ji-1,jj ) + u_ice(ji,jj) ) ) |
---|
| 513 | zwndj_t = ( sf(jp_wndj)%fnow(ji,jj,1) - rn_vfac0(ji,jj) * 0.5 * ( v_ice(ji ,jj-1) + v_ice(ji,jj) ) ) |
---|
[5407] | 514 | wndm_ice(ji,jj) = SQRT( zwndi_t * zwndi_t + zwndj_t * zwndj_t ) * tmask(ji,jj,1) |
---|
[888] | 515 | END DO |
---|
| 516 | END DO |
---|
| 517 | DO jj = 2, jpjm1 |
---|
| 518 | DO ji = fs_2, fs_jpim1 ! vect. opt. |
---|
[15603] | 519 | utau_ice(ji,jj) = zcoef_wnorm2 * ( wndm_ice(ji+1,jj ) + wndm_ice(ji,jj) ) & |
---|
| 520 | & * ( 0.5 * (sf(jp_wndi)%fnow(ji+1,jj,1) + sf(jp_wndi)%fnow(ji,jj,1) ) & |
---|
| 521 | & - rn_vfac0(ji,jj) * u_ice(ji,jj) ) |
---|
| 522 | vtau_ice(ji,jj) = zcoef_wnorm2 * ( wndm_ice(ji,jj+1 ) + wndm_ice(ji,jj) ) & |
---|
| 523 | & * ( 0.5 * (sf(jp_wndj)%fnow(ji,jj+1,1) + sf(jp_wndj)%fnow(ji,jj,1) ) & |
---|
| 524 | & - rn_vfac0(ji,jj) * v_ice(ji,jj) ) |
---|
[888] | 525 | END DO |
---|
| 526 | END DO |
---|
[5407] | 527 | CALL lbc_lnk( utau_ice, 'U', -1. ) |
---|
| 528 | CALL lbc_lnk( vtau_ice, 'V', -1. ) |
---|
| 529 | CALL lbc_lnk( wndm_ice, 'T', 1. ) |
---|
[888] | 530 | ! |
---|
| 531 | END SELECT |
---|
| 532 | |
---|
[5407] | 533 | IF(ln_ctl) THEN |
---|
| 534 | CALL prt_ctl(tab2d_1=utau_ice , clinfo1=' blk_ice_core: utau_ice : ', tab2d_2=vtau_ice , clinfo2=' vtau_ice : ') |
---|
| 535 | CALL prt_ctl(tab2d_1=wndm_ice , clinfo1=' blk_ice_core: wndm_ice : ') |
---|
| 536 | ENDIF |
---|
| 537 | |
---|
| 538 | IF( nn_timing == 1 ) CALL timing_stop('blk_ice_core_tau') |
---|
[15603] | 539 | |
---|
[5407] | 540 | END SUBROUTINE blk_ice_core_tau |
---|
| 541 | |
---|
| 542 | |
---|
| 543 | SUBROUTINE blk_ice_core_flx( ptsu, palb ) |
---|
| 544 | !!--------------------------------------------------------------------- |
---|
| 545 | !! *** ROUTINE blk_ice_core_flx *** |
---|
| 546 | !! |
---|
| 547 | !! ** Purpose : provide the surface boundary condition over sea-ice |
---|
| 548 | !! |
---|
| 549 | !! ** Method : compute heat and freshwater exchanged |
---|
| 550 | !! between atmosphere and sea-ice using CORE bulk |
---|
| 551 | !! formulea, ice variables and read atmmospheric fields. |
---|
[15603] | 552 | !! |
---|
[5407] | 553 | !! caution : the net upward water flux has with mm/day unit |
---|
| 554 | !!--------------------------------------------------------------------- |
---|
| 555 | REAL(wp), DIMENSION(:,:,:), INTENT(in) :: ptsu ! sea ice surface temperature |
---|
| 556 | REAL(wp), DIMENSION(:,:,:), INTENT(in) :: palb ! ice albedo (all skies) |
---|
| 557 | !! |
---|
| 558 | INTEGER :: ji, jj, jl ! dummy loop indices |
---|
| 559 | REAL(wp) :: zst2, zst3 |
---|
| 560 | REAL(wp) :: zcoef_dqlw, zcoef_dqla, zcoef_dqsb |
---|
| 561 | REAL(wp) :: zztmp, z1_lsub ! temporary variable |
---|
| 562 | !! |
---|
| 563 | REAL(wp), DIMENSION(:,:,:), POINTER :: z_qlw ! long wave heat flux over ice |
---|
| 564 | REAL(wp), DIMENSION(:,:,:), POINTER :: z_qsb ! sensible heat flux over ice |
---|
| 565 | REAL(wp), DIMENSION(:,:,:), POINTER :: z_dqlw ! long wave heat sensitivity over ice |
---|
| 566 | REAL(wp), DIMENSION(:,:,:), POINTER :: z_dqsb ! sensible heat sensitivity over ice |
---|
| 567 | REAL(wp), DIMENSION(:,:) , POINTER :: zevap, zsnw ! evaporation and snw distribution after wind blowing (LIM3) |
---|
| 568 | !!--------------------------------------------------------------------- |
---|
| 569 | ! |
---|
| 570 | IF( nn_timing == 1 ) CALL timing_start('blk_ice_core_flx') |
---|
| 571 | ! |
---|
[15603] | 572 | CALL wrk_alloc( jpi,jpj,jpl, z_qlw, z_qsb, z_dqlw, z_dqsb ) |
---|
[5407] | 573 | |
---|
| 574 | ! local scalars ( place there for vector optimisation purposes) |
---|
| 575 | zcoef_dqlw = 4.0 * 0.95 * Stef |
---|
| 576 | zcoef_dqla = -Ls * Cice * 11637800. * (-5897.8) |
---|
| 577 | zcoef_dqsb = rhoa * cpa * Cice |
---|
| 578 | |
---|
[2528] | 579 | zztmp = 1. / ( 1. - albo ) |
---|
[888] | 580 | ! ! ========================== ! |
---|
[5407] | 581 | DO jl = 1, jpl ! Loop over ice categories ! |
---|
[888] | 582 | ! ! ========================== ! |
---|
| 583 | DO jj = 1 , jpj |
---|
| 584 | DO ji = 1, jpi |
---|
| 585 | ! ----------------------------! |
---|
| 586 | ! I Radiative FLUXES ! |
---|
| 587 | ! ----------------------------! |
---|
[5407] | 588 | zst2 = ptsu(ji,jj,jl) * ptsu(ji,jj,jl) |
---|
| 589 | zst3 = ptsu(ji,jj,jl) * zst2 |
---|
[888] | 590 | ! Short Wave (sw) |
---|
[5407] | 591 | qsr_ice(ji,jj,jl) = zztmp * ( 1. - palb(ji,jj,jl) ) * qsr(ji,jj) |
---|
[888] | 592 | ! Long Wave (lw) |
---|
[5407] | 593 | z_qlw(ji,jj,jl) = 0.95 * ( sf(jp_qlw)%fnow(ji,jj,1) - Stef * ptsu(ji,jj,jl) * zst3 ) * tmask(ji,jj,1) |
---|
[888] | 594 | ! lw sensitivity |
---|
[15603] | 595 | z_dqlw(ji,jj,jl) = zcoef_dqlw * zst3 |
---|
[888] | 596 | |
---|
| 597 | ! ----------------------------! |
---|
| 598 | ! II Turbulent FLUXES ! |
---|
| 599 | ! ----------------------------! |
---|
| 600 | |
---|
| 601 | ! ... turbulent heat fluxes |
---|
| 602 | ! Sensible Heat |
---|
[5407] | 603 | z_qsb(ji,jj,jl) = rhoa * cpa * Cice * wndm_ice(ji,jj) * ( ptsu(ji,jj,jl) - sf(jp_tair)%fnow(ji,jj,1) ) |
---|
[888] | 604 | ! Latent Heat |
---|
[15603] | 605 | qla_ice(ji,jj,jl) = rn_efac * MAX( 0.e0, rhoa * Ls * Cice * wndm_ice(ji,jj) & |
---|
[5407] | 606 | & * ( 11637800. * EXP( -5897.8 / ptsu(ji,jj,jl) ) / rhoa - sf(jp_humi)%fnow(ji,jj,1) ) ) |
---|
| 607 | ! Latent heat sensitivity for ice (Dqla/Dt) |
---|
| 608 | IF( qla_ice(ji,jj,jl) > 0._wp ) THEN |
---|
| 609 | dqla_ice(ji,jj,jl) = rn_efac * zcoef_dqla * wndm_ice(ji,jj) / ( zst2 ) * EXP( -5897.8 / ptsu(ji,jj,jl) ) |
---|
[4689] | 610 | ELSE |
---|
[5407] | 611 | dqla_ice(ji,jj,jl) = 0._wp |
---|
[4689] | 612 | ENDIF |
---|
[4990] | 613 | |
---|
[888] | 614 | ! Sensible heat sensitivity (Dqsb_ice/Dtn_ice) |
---|
[5407] | 615 | z_dqsb(ji,jj,jl) = zcoef_dqsb * wndm_ice(ji,jj) |
---|
[888] | 616 | |
---|
| 617 | ! ----------------------------! |
---|
| 618 | ! III Total FLUXES ! |
---|
| 619 | ! ----------------------------! |
---|
| 620 | ! Downward Non Solar flux |
---|
[5407] | 621 | qns_ice (ji,jj,jl) = z_qlw (ji,jj,jl) - z_qsb (ji,jj,jl) - qla_ice (ji,jj,jl) |
---|
[888] | 622 | ! Total non solar heat flux sensitivity for ice |
---|
[5407] | 623 | dqns_ice(ji,jj,jl) = - ( z_dqlw(ji,jj,jl) + z_dqsb(ji,jj,jl) + dqla_ice(ji,jj,jl) ) |
---|
[888] | 624 | END DO |
---|
| 625 | ! |
---|
| 626 | END DO |
---|
| 627 | ! |
---|
| 628 | END DO |
---|
| 629 | ! |
---|
[5407] | 630 | tprecip(:,:) = sf(jp_prec)%fnow(:,:,1) * rn_pfac ! total precipitation [kg/m2/s] |
---|
| 631 | sprecip(:,:) = sf(jp_snow)%fnow(:,:,1) * rn_pfac ! solid precipitation [kg/m2/s] |
---|
| 632 | CALL iom_put( 'snowpre', sprecip * 86400. ) ! Snow precipitation |
---|
| 633 | CALL iom_put( 'precip' , tprecip * 86400. ) ! Total precipitation |
---|
| 634 | |
---|
| 635 | #if defined key_lim3 |
---|
[15603] | 636 | CALL wrk_alloc( jpi,jpj, zevap, zsnw ) |
---|
[5407] | 637 | |
---|
| 638 | ! --- evaporation --- ! |
---|
| 639 | z1_lsub = 1._wp / Lsub |
---|
[6498] | 640 | evap_ice (:,:,:) = rn_efac * qla_ice (:,:,:) * z1_lsub ! sublimation |
---|
| 641 | devap_ice(:,:,:) = rn_efac * dqla_ice(:,:,:) * z1_lsub ! d(sublimation)/dT |
---|
| 642 | zevap (:,:) = rn_efac * ( emp(:,:) + tprecip(:,:) ) ! evaporation over ocean |
---|
[5407] | 643 | |
---|
| 644 | ! --- evaporation minus precipitation --- ! |
---|
[5487] | 645 | zsnw(:,:) = 0._wp |
---|
[15603] | 646 | CALL lim_thd_snwblow( pfrld, zsnw ) ! snow distribution over ice after wind blowing |
---|
[5407] | 647 | emp_oce(:,:) = pfrld(:,:) * zevap(:,:) - ( tprecip(:,:) - sprecip(:,:) ) - sprecip(:,:) * (1._wp - zsnw ) |
---|
| 648 | emp_ice(:,:) = SUM( a_i_b(:,:,:) * evap_ice(:,:,:), dim=3 ) - sprecip(:,:) * zsnw |
---|
| 649 | emp_tot(:,:) = emp_oce(:,:) + emp_ice(:,:) |
---|
| 650 | |
---|
| 651 | ! --- heat flux associated with emp --- ! |
---|
| 652 | qemp_oce(:,:) = - pfrld(:,:) * zevap(:,:) * sst_m(:,:) * rcp & ! evap at sst |
---|
| 653 | & + ( tprecip(:,:) - sprecip(:,:) ) * ( sf(jp_tair)%fnow(:,:,1) - rt0 ) * rcp & ! liquid precip at Tair |
---|
| 654 | & + sprecip(:,:) * ( 1._wp - zsnw ) * & ! solid precip at min(Tair,Tsnow) |
---|
| 655 | & ( ( MIN( sf(jp_tair)%fnow(:,:,1), rt0_snow ) - rt0 ) * cpic * tmask(:,:,1) - lfus ) |
---|
| 656 | qemp_ice(:,:) = sprecip(:,:) * zsnw * & ! solid precip (only) |
---|
| 657 | & ( ( MIN( sf(jp_tair)%fnow(:,:,1), rt0_snow ) - rt0 ) * cpic * tmask(:,:,1) - lfus ) |
---|
| 658 | |
---|
| 659 | ! --- total solar and non solar fluxes --- ! |
---|
| 660 | qns_tot(:,:) = pfrld(:,:) * qns_oce(:,:) + SUM( a_i_b(:,:,:) * qns_ice(:,:,:), dim=3 ) + qemp_ice(:,:) + qemp_oce(:,:) |
---|
| 661 | qsr_tot(:,:) = pfrld(:,:) * qsr_oce(:,:) + SUM( a_i_b(:,:,:) * qsr_ice(:,:,:), dim=3 ) |
---|
| 662 | |
---|
| 663 | ! --- heat content of precip over ice in J/m3 (to be used in 1D-thermo) --- ! |
---|
| 664 | qprec_ice(:,:) = rhosn * ( ( MIN( sf(jp_tair)%fnow(:,:,1), rt0_snow ) - rt0 ) * cpic * tmask(:,:,1) - lfus ) |
---|
| 665 | |
---|
[6498] | 666 | ! --- heat content of evap over ice in W/m2 (to be used in 1D-thermo) --- ! |
---|
| 667 | DO jl = 1, jpl |
---|
| 668 | qevap_ice(:,:,jl) = 0._wp ! should be -evap_ice(:,:,jl)*( ( Tice - rt0 ) * cpic * tmask(:,:,1) ) |
---|
[15603] | 669 | ! But we do not have Tice => consider it at 0 degC => evap=0 |
---|
[6498] | 670 | END DO |
---|
| 671 | |
---|
[15603] | 672 | CALL wrk_dealloc( jpi,jpj, zevap, zsnw ) |
---|
[5407] | 673 | #endif |
---|
| 674 | |
---|
[888] | 675 | !-------------------------------------------------------------------- |
---|
| 676 | ! FRACTIONs of net shortwave radiation which is not absorbed in the |
---|
| 677 | ! thin surface layer and penetrates inside the ice cover |
---|
| 678 | ! ( Maykut and Untersteiner, 1971 ; Ebert and Curry, 1993 ) |
---|
[4990] | 679 | ! |
---|
[5407] | 680 | fr1_i0(:,:) = ( 0.18 * ( 1.0 - cldf_ice ) + 0.35 * cldf_ice ) |
---|
| 681 | fr2_i0(:,:) = ( 0.82 * ( 1.0 - cldf_ice ) + 0.65 * cldf_ice ) |
---|
[4990] | 682 | ! |
---|
[888] | 683 | ! |
---|
| 684 | IF(ln_ctl) THEN |
---|
[5407] | 685 | CALL prt_ctl(tab3d_1=qla_ice , clinfo1=' blk_ice_core: qla_ice : ', tab3d_2=z_qsb , clinfo2=' z_qsb : ', kdim=jpl) |
---|
| 686 | CALL prt_ctl(tab3d_1=z_qlw , clinfo1=' blk_ice_core: z_qlw : ', tab3d_2=dqla_ice, clinfo2=' dqla_ice : ', kdim=jpl) |
---|
| 687 | CALL prt_ctl(tab3d_1=z_dqsb , clinfo1=' blk_ice_core: z_dqsb : ', tab3d_2=z_dqlw , clinfo2=' z_dqlw : ', kdim=jpl) |
---|
| 688 | CALL prt_ctl(tab3d_1=dqns_ice, clinfo1=' blk_ice_core: dqns_ice : ', tab3d_2=qsr_ice , clinfo2=' qsr_ice : ', kdim=jpl) |
---|
| 689 | CALL prt_ctl(tab3d_1=ptsu , clinfo1=' blk_ice_core: ptsu : ', tab3d_2=qns_ice , clinfo2=' qns_ice : ', kdim=jpl) |
---|
| 690 | CALL prt_ctl(tab2d_1=tprecip , clinfo1=' blk_ice_core: tprecip : ', tab2d_2=sprecip , clinfo2=' sprecip : ') |
---|
[888] | 691 | ENDIF |
---|
| 692 | |
---|
[5407] | 693 | CALL wrk_dealloc( jpi,jpj,jpl, z_qlw, z_qsb, z_dqlw, z_dqsb ) |
---|
[2715] | 694 | ! |
---|
[5407] | 695 | IF( nn_timing == 1 ) CALL timing_stop('blk_ice_core_flx') |
---|
[15603] | 696 | |
---|
[5407] | 697 | END SUBROUTINE blk_ice_core_flx |
---|
| 698 | #endif |
---|
[888] | 699 | |
---|
[4990] | 700 | SUBROUTINE turb_core_2z( zt, zu, sst, T_zt, q_sat, q_zt, dU, & |
---|
| 701 | & Cd, Ch, Ce , T_zu, q_zu ) |
---|
[888] | 702 | !!---------------------------------------------------------------------- |
---|
| 703 | !! *** ROUTINE turb_core *** |
---|
| 704 | !! |
---|
[4990] | 705 | !! ** Purpose : Computes turbulent transfert coefficients of surface |
---|
| 706 | !! fluxes according to Large & Yeager (2004) and Large & Yeager (2008) |
---|
| 707 | !! If relevant (zt /= zu), adjust temperature and humidity from height zt to zu |
---|
[888] | 708 | !! |
---|
[15603] | 709 | !! ** Method : Monin Obukhov Similarity Theory |
---|
[4990] | 710 | !! + Large & Yeager (2004,2008) closure: CD_n10 = f(U_n10) |
---|
[888] | 711 | !! |
---|
[4990] | 712 | !! ** References : Large & Yeager, 2004 / Large & Yeager, 2008 |
---|
| 713 | !! |
---|
| 714 | !! ** Last update: Laurent Brodeau, June 2014: |
---|
| 715 | !! - handles both cases zt=zu and zt/=zu |
---|
| 716 | !! - optimized: less 2D arrays allocated and less operations |
---|
| 717 | !! - better first guess of stability by checking air-sea difference of virtual temperature |
---|
| 718 | !! rather than temperature difference only... |
---|
[15603] | 719 | !! - added function "cd_neutral_10m" that uses the improved parametrization of |
---|
[4990] | 720 | !! Large & Yeager 2008. Drag-coefficient reduction for Cyclone conditions! |
---|
| 721 | !! - using code-wide physical constants defined into "phycst.mod" rather than redifining them |
---|
| 722 | !! => 'vkarmn' and 'grav' |
---|
[888] | 723 | !!---------------------------------------------------------------------- |
---|
[3294] | 724 | REAL(wp), INTENT(in ) :: zt ! height for T_zt and q_zt [m] |
---|
| 725 | REAL(wp), INTENT(in ) :: zu ! height for dU [m] |
---|
| 726 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: sst ! sea surface temperature [Kelvin] |
---|
| 727 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: T_zt ! potential air temperature [Kelvin] |
---|
| 728 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: q_sat ! sea surface specific humidity [kg/kg] |
---|
| 729 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: q_zt ! specific air humidity [kg/kg] |
---|
[4990] | 730 | REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: dU ! relative wind module at zu [m/s] |
---|
[3294] | 731 | REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Cd ! transfer coefficient for momentum (tau) |
---|
| 732 | REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Ch ! transfer coefficient for sensible heat (Q_sens) |
---|
| 733 | REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Ce ! transfert coefficient for evaporation (Q_lat) |
---|
| 734 | REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: T_zu ! air temp. shifted at zu [K] |
---|
| 735 | REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: q_zu ! spec. hum. shifted at zu [kg/kg] |
---|
[4990] | 736 | ! |
---|
| 737 | INTEGER :: j_itt |
---|
| 738 | INTEGER , PARAMETER :: nb_itt = 5 ! number of itterations |
---|
| 739 | LOGICAL :: l_zt_equal_zu = .FALSE. ! if q and t are given at different height than U |
---|
| 740 | ! |
---|
| 741 | REAL(wp), DIMENSION(:,:), POINTER :: U_zu ! relative wind at zu [m/s] |
---|
[3294] | 742 | REAL(wp), DIMENSION(:,:), POINTER :: Ce_n10 ! 10m neutral latent coefficient |
---|
| 743 | REAL(wp), DIMENSION(:,:), POINTER :: Ch_n10 ! 10m neutral sensible coefficient |
---|
| 744 | REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd_n10 ! root square of Cd_n10 |
---|
| 745 | REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd ! root square of Cd |
---|
| 746 | REAL(wp), DIMENSION(:,:), POINTER :: zeta_u ! stability parameter at height zu |
---|
| 747 | REAL(wp), DIMENSION(:,:), POINTER :: zeta_t ! stability parameter at height zt |
---|
[4990] | 748 | REAL(wp), DIMENSION(:,:), POINTER :: zpsi_h_u, zpsi_m_u |
---|
| 749 | REAL(wp), DIMENSION(:,:), POINTER :: ztmp0, ztmp1, ztmp2 |
---|
| 750 | REAL(wp), DIMENSION(:,:), POINTER :: stab ! 1st stability test integer |
---|
[2528] | 751 | !!---------------------------------------------------------------------- |
---|
[888] | 752 | |
---|
[4990] | 753 | IF( nn_timing == 1 ) CALL timing_start('turb_core_2z') |
---|
[15603] | 754 | |
---|
[4990] | 755 | CALL wrk_alloc( jpi,jpj, U_zu, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd ) |
---|
| 756 | CALL wrk_alloc( jpi,jpj, zeta_u, stab ) |
---|
| 757 | CALL wrk_alloc( jpi,jpj, zpsi_h_u, zpsi_m_u, ztmp0, ztmp1, ztmp2 ) |
---|
[888] | 758 | |
---|
[4990] | 759 | l_zt_equal_zu = .FALSE. |
---|
| 760 | IF( ABS(zu - zt) < 0.01 ) l_zt_equal_zu = .TRUE. ! testing "zu == zt" is risky with double precision |
---|
| 761 | |
---|
| 762 | IF( .NOT. l_zt_equal_zu ) CALL wrk_alloc( jpi,jpj, zeta_t ) |
---|
| 763 | |
---|
| 764 | U_zu = MAX( 0.5 , dU ) ! relative wind speed at zu (normally 10m), we don't want to fall under 0.5 m/s |
---|
| 765 | |
---|
[15603] | 766 | !! First guess of stability: |
---|
[4990] | 767 | ztmp0 = T_zt*(1. + 0.608*q_zt) - sst*(1. + 0.608*q_sat) ! air-sea difference of virtual pot. temp. at zt |
---|
| 768 | stab = 0.5 + sign(0.5,ztmp0) ! stab = 1 if dTv > 0 => STABLE, 0 if unstable |
---|
| 769 | |
---|
| 770 | !! Neutral coefficients at 10m: |
---|
| 771 | IF( ln_cdgw ) THEN ! wave drag case |
---|
| 772 | cdn_wave(:,:) = cdn_wave(:,:) + rsmall * ( 1._wp - tmask(:,:,1) ) |
---|
| 773 | ztmp0 (:,:) = cdn_wave(:,:) |
---|
[3294] | 774 | ELSE |
---|
[4990] | 775 | ztmp0 = cd_neutral_10m( U_zu ) |
---|
[3294] | 776 | ENDIF |
---|
[4990] | 777 | sqrt_Cd_n10 = SQRT( ztmp0 ) |
---|
[4333] | 778 | Ce_n10 = 1.e-3*( 34.6 * sqrt_Cd_n10 ) |
---|
| 779 | Ch_n10 = 1.e-3*sqrt_Cd_n10*(18.*stab + 32.7*(1. - stab)) |
---|
[15603] | 780 | |
---|
[888] | 781 | !! Initializing transf. coeff. with their first guess neutral equivalents : |
---|
[4990] | 782 | Cd = ztmp0 ; Ce = Ce_n10 ; Ch = Ch_n10 ; sqrt_Cd = sqrt_Cd_n10 |
---|
[888] | 783 | |
---|
[4990] | 784 | !! Initializing values at z_u with z_t values: |
---|
| 785 | T_zu = T_zt ; q_zu = q_zt |
---|
[888] | 786 | |
---|
| 787 | !! * Now starting iteration loop |
---|
| 788 | DO j_itt=1, nb_itt |
---|
[4990] | 789 | ! |
---|
| 790 | ztmp1 = T_zu - sst ! Updating air/sea differences |
---|
[15603] | 791 | ztmp2 = q_zu - q_sat |
---|
[4990] | 792 | |
---|
| 793 | ! Updating turbulent scales : (L&Y 2004 eq. (7)) |
---|
| 794 | ztmp1 = Ch/sqrt_Cd*ztmp1 ! theta* |
---|
| 795 | ztmp2 = Ce/sqrt_Cd*ztmp2 ! q* |
---|
[15603] | 796 | |
---|
[4990] | 797 | ztmp0 = T_zu*(1. + 0.608*q_zu) ! virtual potential temperature at zu |
---|
| 798 | |
---|
| 799 | ! Estimate the inverse of Monin-Obukov length (1/L) at height zu: |
---|
[15603] | 800 | ztmp0 = (vkarmn*grav/ztmp0*(ztmp1*(1.+0.608*q_zu) + 0.608*T_zu*ztmp2)) / (Cd*U_zu*U_zu) |
---|
[4990] | 801 | ! ( Cd*U_zu*U_zu is U*^2 at zu) |
---|
| 802 | |
---|
[888] | 803 | !! Stability parameters : |
---|
[4990] | 804 | zeta_u = zu*ztmp0 ; zeta_u = sign( min(abs(zeta_u),10.0), zeta_u ) |
---|
| 805 | zpsi_h_u = psi_h( zeta_u ) |
---|
| 806 | zpsi_m_u = psi_m( zeta_u ) |
---|
[15603] | 807 | |
---|
[4990] | 808 | !! Shifting temperature and humidity at zu (L&Y 2004 eq. (9b-9c)) |
---|
| 809 | IF ( .NOT. l_zt_equal_zu ) THEN |
---|
| 810 | zeta_t = zt*ztmp0 ; zeta_t = sign( min(abs(zeta_t),10.0), zeta_t ) |
---|
| 811 | stab = LOG(zu/zt) - zpsi_h_u + psi_h(zeta_t) ! stab just used as temp array!!! |
---|
| 812 | T_zu = T_zt + ztmp1/vkarmn*stab ! ztmp1 is still theta* |
---|
| 813 | q_zu = q_zt + ztmp2/vkarmn*stab ! ztmp2 is still q* |
---|
| 814 | q_zu = max(0., q_zu) |
---|
| 815 | END IF |
---|
[15603] | 816 | |
---|
[4990] | 817 | IF( ln_cdgw ) THEN ! surface wave case |
---|
[15603] | 818 | sqrt_Cd = vkarmn / ( vkarmn / sqrt_Cd_n10 - zpsi_m_u ) |
---|
[4990] | 819 | Cd = sqrt_Cd * sqrt_Cd |
---|
[3294] | 820 | ELSE |
---|
[4990] | 821 | ! Update neutral wind speed at 10m and neutral Cd at 10m (L&Y 2004 eq. 9a)... |
---|
| 822 | ! In very rare low-wind conditions, the old way of estimating the |
---|
| 823 | ! neutral wind speed at 10m leads to a negative value that causes the code |
---|
| 824 | ! to crash. To prevent this a threshold of 0.25m/s is imposed. |
---|
| 825 | ztmp0 = MAX( 0.25 , U_zu/(1. + sqrt_Cd_n10/vkarmn*(LOG(zu/10.) - zpsi_m_u)) ) ! U_n10 |
---|
| 826 | ztmp0 = cd_neutral_10m(ztmp0) ! Cd_n10 |
---|
| 827 | sqrt_Cd_n10 = sqrt(ztmp0) |
---|
[15603] | 828 | |
---|
[4990] | 829 | Ce_n10 = 1.e-3 * (34.6 * sqrt_Cd_n10) ! L&Y 2004 eq. (6b) |
---|
| 830 | stab = 0.5 + sign(0.5,zeta_u) ! update stability |
---|
| 831 | Ch_n10 = 1.e-3*sqrt_Cd_n10*(18.*stab + 32.7*(1. - stab)) ! L&Y 2004 eq. (6c-6d) |
---|
| 832 | |
---|
| 833 | !! Update of transfer coefficients: |
---|
| 834 | ztmp1 = 1. + sqrt_Cd_n10/vkarmn*(LOG(zu/10.) - zpsi_m_u) ! L&Y 2004 eq. (10a) |
---|
[15603] | 835 | Cd = ztmp0 / ( ztmp1*ztmp1 ) |
---|
[4990] | 836 | sqrt_Cd = SQRT( Cd ) |
---|
[3294] | 837 | ENDIF |
---|
[4990] | 838 | ! |
---|
| 839 | ztmp0 = (LOG(zu/10.) - zpsi_h_u) / vkarmn / sqrt_Cd_n10 |
---|
| 840 | ztmp2 = sqrt_Cd / sqrt_Cd_n10 |
---|
[15603] | 841 | ztmp1 = 1. + Ch_n10*ztmp0 |
---|
[4990] | 842 | Ch = Ch_n10*ztmp2 / ztmp1 ! L&Y 2004 eq. (10b) |
---|
| 843 | ! |
---|
[15603] | 844 | ztmp1 = 1. + Ce_n10*ztmp0 |
---|
[4990] | 845 | Ce = Ce_n10*ztmp2 / ztmp1 ! L&Y 2004 eq. (10c) |
---|
| 846 | ! |
---|
[888] | 847 | END DO |
---|
[4990] | 848 | |
---|
| 849 | CALL wrk_dealloc( jpi,jpj, U_zu, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd ) |
---|
| 850 | CALL wrk_dealloc( jpi,jpj, zeta_u, stab ) |
---|
| 851 | CALL wrk_dealloc( jpi,jpj, zpsi_h_u, zpsi_m_u, ztmp0, ztmp1, ztmp2 ) |
---|
| 852 | |
---|
| 853 | IF( .NOT. l_zt_equal_zu ) CALL wrk_dealloc( jpi,jpj, zeta_t ) |
---|
| 854 | |
---|
| 855 | IF( nn_timing == 1 ) CALL timing_stop('turb_core_2z') |
---|
| 856 | ! |
---|
| 857 | END SUBROUTINE turb_core_2z |
---|
| 858 | |
---|
| 859 | |
---|
| 860 | FUNCTION cd_neutral_10m( zw10 ) |
---|
| 861 | !!---------------------------------------------------------------------- |
---|
[15603] | 862 | !! Estimate of the neutral drag coefficient at 10m as a function |
---|
[4990] | 863 | !! of neutral wind speed at 10m |
---|
[888] | 864 | !! |
---|
[4990] | 865 | !! Origin: Large & Yeager 2008 eq.(11a) and eq.(11b) |
---|
| 866 | !! |
---|
| 867 | !! Author: L. Brodeau, june 2014 |
---|
[15603] | 868 | !!---------------------------------------------------------------------- |
---|
[4990] | 869 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: zw10 ! scalar wind speed at 10m (m/s) |
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| 870 | REAL(wp), DIMENSION(jpi,jpj) :: cd_neutral_10m |
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[2715] | 871 | ! |
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[4990] | 872 | REAL(wp), DIMENSION(:,:), POINTER :: rgt33 |
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[15603] | 873 | !!---------------------------------------------------------------------- |
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[3294] | 874 | ! |
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[4990] | 875 | CALL wrk_alloc( jpi,jpj, rgt33 ) |
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| 876 | ! |
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| 877 | !! When wind speed > 33 m/s => Cyclone conditions => special treatment |
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[15603] | 878 | rgt33 = 0.5_wp + SIGN( 0.5_wp, (zw10 - 33._wp) ) ! If zw10 < 33. => 0, else => 1 |
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[4990] | 879 | cd_neutral_10m = 1.e-3 * ( & |
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[5065] | 880 | & (1._wp - rgt33)*( 2.7_wp/zw10 + 0.142_wp + zw10/13.09_wp - 3.14807E-10*zw10**6) & ! zw10< 33. |
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[4990] | 881 | & + rgt33 * 2.34 ) ! zw10 >= 33. |
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| 882 | ! |
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| 883 | CALL wrk_dealloc( jpi,jpj, rgt33) |
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| 884 | ! |
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| 885 | END FUNCTION cd_neutral_10m |
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[888] | 886 | |
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| 887 | |
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[4990] | 888 | FUNCTION psi_m(pta) !! Psis, L&Y 2004 eq. (8c), (8d), (8e) |
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[2715] | 889 | !------------------------------------------------------------------------------- |
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[4990] | 890 | ! universal profile stability function for momentum |
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| 891 | !------------------------------------------------------------------------------- |
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| 892 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pta |
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| 893 | ! |
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[888] | 894 | REAL(wp), DIMENSION(jpi,jpj) :: psi_m |
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[3294] | 895 | REAL(wp), DIMENSION(:,:), POINTER :: X2, X, stabit |
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[2715] | 896 | !------------------------------------------------------------------------------- |
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[4990] | 897 | ! |
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[3294] | 898 | CALL wrk_alloc( jpi,jpj, X2, X, stabit ) |
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[4990] | 899 | ! |
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| 900 | X2 = SQRT( ABS( 1. - 16.*pta ) ) ; X2 = MAX( X2 , 1. ) ; X = SQRT( X2 ) |
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| 901 | stabit = 0.5 + SIGN( 0.5 , pta ) |
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| 902 | psi_m = -5.*pta*stabit & ! Stable |
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| 903 | & + (1. - stabit)*(2.*LOG((1. + X)*0.5) + LOG((1. + X2)*0.5) - 2.*ATAN(X) + rpi*0.5) ! Unstable |
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| 904 | ! |
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[3294] | 905 | CALL wrk_dealloc( jpi,jpj, X2, X, stabit ) |
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[2715] | 906 | ! |
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[4990] | 907 | END FUNCTION psi_m |
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[888] | 908 | |
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| 909 | |
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[4990] | 910 | FUNCTION psi_h( pta ) !! Psis, L&Y 2004 eq. (8c), (8d), (8e) |
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[2715] | 911 | !------------------------------------------------------------------------------- |
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[4990] | 912 | ! universal profile stability function for temperature and humidity |
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| 913 | !------------------------------------------------------------------------------- |
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| 914 | REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: pta |
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[2715] | 915 | ! |
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| 916 | REAL(wp), DIMENSION(jpi,jpj) :: psi_h |
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[4990] | 917 | REAL(wp), DIMENSION(:,:), POINTER :: X2, X, stabit |
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[2715] | 918 | !------------------------------------------------------------------------------- |
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[4990] | 919 | ! |
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[3294] | 920 | CALL wrk_alloc( jpi,jpj, X2, X, stabit ) |
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[4990] | 921 | ! |
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| 922 | X2 = SQRT( ABS( 1. - 16.*pta ) ) ; X2 = MAX( X2 , 1. ) ; X = SQRT( X2 ) |
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| 923 | stabit = 0.5 + SIGN( 0.5 , pta ) |
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| 924 | psi_h = -5.*pta*stabit & ! Stable |
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| 925 | & + (1. - stabit)*(2.*LOG( (1. + X2)*0.5 )) ! Unstable |
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| 926 | ! |
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[3294] | 927 | CALL wrk_dealloc( jpi,jpj, X2, X, stabit ) |
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[2715] | 928 | ! |
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[4990] | 929 | END FUNCTION psi_h |
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| 930 | |
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[888] | 931 | !!====================================================================== |
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| 932 | END MODULE sbcblk_core |
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