[888] | 1 | MODULE sbc_oce |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbc_oce *** |
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| 4 | !! Surface module : variables defined in core memory |
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| 5 | !!====================================================================== |
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[2528] | 6 | !! History : 3.0 ! 2006-06 (G. Madec) Original code |
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| 7 | !! - ! 2008-08 (G. Madec) namsbc moved from sbcmod |
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| 8 | !! 3.3 ! 2010-04 (M. Leclair, G. Madec) Forcing averaged over 2 time steps |
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| 9 | !! - ! 2010-11 (G. Madec) ice-ocean stress always computed at each ocean time-step |
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| 10 | !! 3.3 ! 2010-10 (J. Chanut, C. Bricaud) add the surface pressure forcing |
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[4161] | 11 | !! 4.0 ! 2012-05 (C. Rousset) add attenuation coef for use in ice model |
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[7646] | 12 | !! 4.0 ! 2016-06 (L. Brodeau) new unified bulk routine (based on AeroBulk) |
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[888] | 13 | !!---------------------------------------------------------------------- |
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| 14 | |
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[2715] | 15 | !!---------------------------------------------------------------------- |
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| 16 | !! sbc_oce_alloc : allocation of sbc arrays |
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| 17 | !! sbc_tau2wnd : wind speed estimated from wind stress |
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| 18 | !!---------------------------------------------------------------------- |
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| 19 | USE par_oce ! ocean parameters |
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| 20 | USE in_out_manager ! I/O manager |
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| 21 | USE lib_mpp ! MPP library |
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| 22 | |
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[888] | 23 | IMPLICIT NONE |
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| 24 | PRIVATE |
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[2715] | 25 | |
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| 26 | PUBLIC sbc_oce_alloc ! routine called in sbcmod.F90 |
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| 27 | PUBLIC sbc_tau2wnd ! routine called in several sbc modules |
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[888] | 28 | |
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| 29 | !!---------------------------------------------------------------------- |
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[1218] | 30 | !! Namelist for the Ocean Surface Boundary Condition |
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| 31 | !!---------------------------------------------------------------------- |
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[4147] | 32 | ! !!* namsbc namelist * |
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[7646] | 33 | LOGICAL , PUBLIC :: ln_usr !: user defined formulation |
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[4147] | 34 | LOGICAL , PUBLIC :: ln_flx !: flux formulation |
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[7646] | 35 | LOGICAL , PUBLIC :: ln_blk !: bulk formulation |
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[4990] | 36 | #if defined key_oasis3 |
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[5407] | 37 | LOGICAL , PUBLIC :: lk_oasis = .TRUE. !: OASIS used |
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[4990] | 38 | #else |
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[5407] | 39 | LOGICAL , PUBLIC :: lk_oasis = .FALSE. !: OASIS unused |
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[4990] | 40 | #endif |
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[5407] | 41 | LOGICAL , PUBLIC :: ln_cpl !: ocean-atmosphere coupled formulation |
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| 42 | LOGICAL , PUBLIC :: ln_mixcpl !: ocean-atmosphere forced-coupled mixed formulation |
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[4147] | 43 | LOGICAL , PUBLIC :: ln_dm2dc !: Daily mean to Diurnal Cycle short wave (qsr) |
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[4230] | 44 | LOGICAL , PUBLIC :: ln_rnf !: runoffs / runoff mouths |
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[6140] | 45 | LOGICAL , PUBLIC :: ln_isf !: ice shelf melting |
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[4147] | 46 | LOGICAL , PUBLIC :: ln_ssr !: Sea Surface restoring on SST and/or SSS |
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| 47 | LOGICAL , PUBLIC :: ln_apr_dyn !: Atmospheric pressure forcing used on dynamics (ocean & ice) |
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| 48 | INTEGER , PUBLIC :: nn_ice !: flag for ice in the surface boundary condition (=0/1/2/3) |
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[9019] | 49 | LOGICAL , PUBLIC :: ln_ice_embd !: flag for levitating/embedding sea-ice in the ocean |
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| 50 | ! !: =F levitating ice (no presure effect) with mass and salt exchanges |
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| 51 | ! !: =T embedded sea-ice (pressure effect + mass and salt exchanges) |
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[5407] | 52 | INTEGER , PUBLIC :: nn_components !: flag for sbc module (including sea-ice) coupling mode (see component definition below) |
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[4147] | 53 | INTEGER , PUBLIC :: nn_fwb !: FreshWater Budget: |
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[1220] | 54 | ! !: = 0 unchecked |
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| 55 | ! !: = 1 global mean of e-p-r set to zero at each nn_fsbc time step |
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| 56 | ! !: = 2 annual global mean of e-p-r set to zero |
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[4147] | 57 | LOGICAL , PUBLIC :: ln_wave !: true if some coupling with wave model |
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| 58 | LOGICAL , PUBLIC :: ln_cdgw !: true if neutral drag coefficient from wave model |
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| 59 | LOGICAL , PUBLIC :: ln_sdw !: true if 3d stokes drift from wave model |
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[9033] | 60 | LOGICAL , PUBLIC :: ln_tauwoc !: true if normalized stress from wave is used |
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[9023] | 61 | LOGICAL , PUBLIC :: ln_tauw !: true if ocean stress components from wave is used |
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[7646] | 62 | LOGICAL , PUBLIC :: ln_stcor !: true if Stokes-Coriolis term is used |
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[4147] | 63 | ! |
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[9023] | 64 | INTEGER , PUBLIC :: nn_sdrift ! type of parameterization to calculate vertical Stokes drift |
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| 65 | ! |
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[4147] | 66 | LOGICAL , PUBLIC :: ln_icebergs !: Icebergs |
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[4161] | 67 | ! |
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[4990] | 68 | INTEGER , PUBLIC :: nn_lsm !: Number of iteration if seaoverland is applied |
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[9019] | 69 | ! |
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| 70 | ! !!* namsbc_cpl namelist * |
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| 71 | INTEGER , PUBLIC :: nn_cats_cpl !: Number of sea ice categories over which the coupling is carried out |
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| 72 | |
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[1218] | 73 | !!---------------------------------------------------------------------- |
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[4990] | 74 | !! switch definition (improve readability) |
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| 75 | !!---------------------------------------------------------------------- |
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[7646] | 76 | INTEGER , PUBLIC, PARAMETER :: jp_usr = 1 !: user defined formulation |
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[5407] | 77 | INTEGER , PUBLIC, PARAMETER :: jp_flx = 2 !: flux formulation |
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[7646] | 78 | INTEGER , PUBLIC, PARAMETER :: jp_blk = 3 !: bulk formulation |
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| 79 | INTEGER , PUBLIC, PARAMETER :: jp_purecpl = 4 !: Pure ocean-atmosphere Coupled formulation |
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| 80 | INTEGER , PUBLIC, PARAMETER :: jp_none = 5 !: for OPA when doing coupling via SAS module |
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[4990] | 81 | |
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| 82 | !!---------------------------------------------------------------------- |
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[9023] | 83 | !! Stokes drift parametrization definition |
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| 84 | !!---------------------------------------------------------------------- |
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[9115] | 85 | INTEGER , PUBLIC, PARAMETER :: jp_breivik_2014 = 0 !: Breivik 2014: v_z=v_0*[exp(2*k*z)/(1-8*k*z)] |
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| 86 | INTEGER , PUBLIC, PARAMETER :: jp_li_2017 = 1 !: Li et al 2017: Stokes drift based on Phillips spectrum (Breivik 2016) |
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| 87 | ! with depth averaged profile |
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| 88 | INTEGER , PUBLIC, PARAMETER :: jp_peakfr = 2 !: Li et al 2017: using the peak wave number read from wave model instead |
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| 89 | ! of the inverse depth scale |
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| 90 | LOGICAL , PUBLIC :: ll_st_bv2014 = .FALSE. ! logical indicator, .true. if Breivik 2014 parameterisation is active. |
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| 91 | LOGICAL , PUBLIC :: ll_st_li2017 = .FALSE. ! logical indicator, .true. if Li 2017 parameterisation is active. |
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| 92 | LOGICAL , PUBLIC :: ll_st_bv_li = .FALSE. ! logical indicator, .true. if either Breivik or Li parameterisation is active. |
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| 93 | LOGICAL , PUBLIC :: ll_st_peakfr = .FALSE. ! logical indicator, .true. if using Li 2017 with peak wave number |
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[9023] | 94 | |
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| 95 | !!---------------------------------------------------------------------- |
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[5407] | 96 | !! component definition |
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| 97 | !!---------------------------------------------------------------------- |
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| 98 | INTEGER , PUBLIC, PARAMETER :: jp_iam_nemo = 0 !: Initial single executable configuration |
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| 99 | ! (no internal OASIS coupling) |
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| 100 | INTEGER , PUBLIC, PARAMETER :: jp_iam_opa = 1 !: Multi executable configuration - OPA component |
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| 101 | ! (internal OASIS coupling) |
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| 102 | INTEGER , PUBLIC, PARAMETER :: jp_iam_sas = 2 !: Multi executable configuration - SAS component |
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| 103 | ! (internal OASIS coupling) |
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| 104 | !!---------------------------------------------------------------------- |
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[888] | 105 | !! Ocean Surface Boundary Condition fields |
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| 106 | !!---------------------------------------------------------------------- |
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[5385] | 107 | INTEGER , PUBLIC :: ncpl_qsr_freq !: qsr coupling frequency per days from atmosphere |
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| 108 | ! |
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[2528] | 109 | LOGICAL , PUBLIC :: lhftau = .FALSE. !: HF tau used in TKE: mean(stress module) - module(mean stress) |
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| 110 | !! !! now ! before !! |
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[2715] | 111 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: utau , utau_b !: sea surface i-stress (ocean referential) [N/m2] |
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| 112 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: vtau , vtau_b !: sea surface j-stress (ocean referential) [N/m2] |
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| 113 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: taum !: module of sea surface stress (at T-point) [N/m2] |
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| 114 | !! wndm is used onmpute surface gases exchanges in ice-free ocean or leads |
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| 115 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wndm !: wind speed module at T-point (=|U10m-Uoce|) [m/s] |
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| 116 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qsr !: sea heat flux: solar [W/m2] |
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| 117 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qns , qns_b !: sea heat flux: non solar [W/m2] |
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| 118 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qsr_tot !: total solar heat flux (over sea and ice) [W/m2] |
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| 119 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qns_tot !: total non solar heat flux (over sea and ice) [W/m2] |
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| 120 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp , emp_b !: freshwater budget: volume flux [Kg/m2/s] |
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[10881] | 121 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx , sfx_b !: salt flux [PSS.kg/m2/s] |
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[2715] | 122 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: emp_tot !: total E-P over ocean and ice [Kg/m2/s] |
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[4148] | 123 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fmmflx !: freshwater budget: freezing/melting [Kg/m2/s] |
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[5120] | 124 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rnf , rnf_b !: river runoff [Kg/m2/s] |
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| 125 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwfisf , fwfisf_b !: ice shelf melting [Kg/m2/s] |
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[7788] | 126 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwficb , fwficb_b !: iceberg melting [Kg/m2/s] |
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| 127 | |
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[2528] | 128 | !! |
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[2715] | 129 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sbc_tsc, sbc_tsc_b !: sbc content trend [K.m/s] jpi,jpj,jpts |
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| 130 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qsr_hc , qsr_hc_b !: heat content trend due to qsr flux [K.m/s] jpi,jpj,jpk |
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[2528] | 131 | !! |
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[4161] | 132 | !! |
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[2715] | 133 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tprecip !: total precipitation [Kg/m2/s] |
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| 134 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sprecip !: solid precipitation [Kg/m2/s] |
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| 135 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fr_i !: ice fraction = 1 - lead fraction (between 0 to 1) |
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| 136 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: atm_co2 !: atmospheric pCO2 [ppm] |
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[5407] | 137 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: xcplmask !: coupling mask for ln_mixcpl (warning: allocated in sbccpl) |
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[888] | 138 | |
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| 139 | !!---------------------------------------------------------------------- |
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| 140 | !! Sea Surface Mean fields |
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| 141 | !!---------------------------------------------------------------------- |
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| 142 | INTEGER , PUBLIC :: nn_fsbc !: frequency of sbc computation (as well as sea-ice model) |
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[2715] | 143 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ssu_m !: mean (nn_fsbc time-step) surface sea i-current (U-point) [m/s] |
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| 144 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ssv_m !: mean (nn_fsbc time-step) surface sea j-current (V-point) [m/s] |
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| 145 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sst_m !: mean (nn_fsbc time-step) surface sea temperature [Celsius] |
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| 146 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sss_m !: mean (nn_fsbc time-step) surface sea salinity [psu] |
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| 147 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ssh_m !: mean (nn_fsbc time-step) sea surface height [m] |
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[4990] | 148 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: e3t_m !: mean (nn_fsbc time-step) sea surface layer thickness [m] |
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[5407] | 149 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: frq_m !: mean (nn_fsbc time-step) fraction of solar net radiation absorbed in the 1st T level [-] |
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[888] | 150 | |
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[2715] | 151 | !! * Substitutions |
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| 152 | # include "vectopt_loop_substitute.h90" |
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[888] | 153 | !!---------------------------------------------------------------------- |
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[9598] | 154 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[2528] | 155 | !! $Id$ |
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[10068] | 156 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[2715] | 157 | !!---------------------------------------------------------------------- |
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| 158 | CONTAINS |
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| 159 | |
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| 160 | INTEGER FUNCTION sbc_oce_alloc() |
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| 161 | !!--------------------------------------------------------------------- |
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| 162 | !! *** FUNCTION sbc_oce_alloc *** |
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| 163 | !!--------------------------------------------------------------------- |
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[4292] | 164 | INTEGER :: ierr(5) |
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[2715] | 165 | !!--------------------------------------------------------------------- |
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| 166 | ierr(:) = 0 |
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| 167 | ! |
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| 168 | ALLOCATE( utau(jpi,jpj) , utau_b(jpi,jpj) , taum(jpi,jpj) , & |
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| 169 | & vtau(jpi,jpj) , vtau_b(jpi,jpj) , wndm(jpi,jpj) , STAT=ierr(1) ) |
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| 170 | ! |
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[3625] | 171 | ALLOCATE( qns_tot(jpi,jpj) , qns (jpi,jpj) , qns_b(jpi,jpj), & |
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| 172 | & qsr_tot(jpi,jpj) , qsr (jpi,jpj) , & |
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| 173 | & emp (jpi,jpj) , emp_b(jpi,jpj) , & |
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[4148] | 174 | & sfx (jpi,jpj) , sfx_b(jpi,jpj) , emp_tot(jpi,jpj), fmmflx(jpi,jpj), STAT=ierr(2) ) |
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[2715] | 175 | ! |
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[7788] | 176 | ALLOCATE( fwfisf (jpi,jpj), rnf (jpi,jpj) , sbc_tsc (jpi,jpj,jpts) , qsr_hc (jpi,jpj,jpk) , & |
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| 177 | & fwfisf_b(jpi,jpj), rnf_b(jpi,jpj) , sbc_tsc_b(jpi,jpj,jpts) , qsr_hc_b(jpi,jpj,jpk) , & |
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| 178 | & fwficb (jpi,jpj), fwficb_b(jpi,jpj), STAT=ierr(3) ) |
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[2715] | 179 | ! |
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| 180 | ALLOCATE( tprecip(jpi,jpj) , sprecip(jpi,jpj) , fr_i(jpi,jpj) , & |
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| 181 | & atm_co2(jpi,jpj) , & |
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[5407] | 182 | & ssu_m (jpi,jpj) , sst_m(jpi,jpj) , frq_m(jpi,jpj) , & |
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| 183 | & ssv_m (jpi,jpj) , sss_m(jpi,jpj) , ssh_m(jpi,jpj) , STAT=ierr(4) ) |
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[2715] | 184 | ! |
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[4292] | 185 | ALLOCATE( e3t_m(jpi,jpj) , STAT=ierr(5) ) |
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| 186 | ! |
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[2715] | 187 | sbc_oce_alloc = MAXVAL( ierr ) |
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[10425] | 188 | CALL mpp_sum ( 'sbc_oce', sbc_oce_alloc ) |
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[2715] | 189 | IF( sbc_oce_alloc > 0 ) CALL ctl_warn('sbc_oce_alloc: allocation of arrays failed') |
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| 190 | ! |
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| 191 | END FUNCTION sbc_oce_alloc |
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| 192 | |
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| 193 | |
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| 194 | SUBROUTINE sbc_tau2wnd |
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| 195 | !!--------------------------------------------------------------------- |
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| 196 | !! *** ROUTINE sbc_tau2wnd *** |
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| 197 | !! |
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| 198 | !! ** Purpose : Estimation of wind speed as a function of wind stress |
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| 199 | !! |
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| 200 | !! ** Method : |tau|=rhoa*Cd*|U|^2 |
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| 201 | !!--------------------------------------------------------------------- |
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| 202 | USE dom_oce ! ocean space and time domain |
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| 203 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 204 | REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3 |
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| 205 | REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient |
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| 206 | REAL(wp) :: ztx, zty, ztau, zcoef ! temporary variables |
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| 207 | INTEGER :: ji, jj ! dummy indices |
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| 208 | !!--------------------------------------------------------------------- |
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| 209 | zcoef = 0.5 / ( zrhoa * zcdrag ) |
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| 210 | DO jj = 2, jpjm1 |
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| 211 | DO ji = fs_2, fs_jpim1 ! vect. opt. |
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| 212 | ztx = utau(ji-1,jj ) + utau(ji,jj) |
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| 213 | zty = vtau(ji ,jj-1) + vtau(ji,jj) |
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| 214 | ztau = SQRT( ztx * ztx + zty * zty ) |
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| 215 | wndm(ji,jj) = SQRT ( ztau * zcoef ) * tmask(ji,jj,1) |
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| 216 | END DO |
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| 217 | END DO |
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[10425] | 218 | CALL lbc_lnk( 'sbc_oce', wndm(:,:) , 'T', 1. ) |
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[2715] | 219 | ! |
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| 220 | END SUBROUTINE sbc_tau2wnd |
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| 221 | |
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[888] | 222 | !!====================================================================== |
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| 223 | END MODULE sbc_oce |
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