| 1 | MODULE step |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE step *** |
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| 4 | !! Time-stepping : manager of the ocean, tracer and ice time stepping |
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| 5 | !!====================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! stp : OPA system time-stepping |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! * Modules used |
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| 11 | USE oce ! ocean dynamics and tracers variables |
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| 12 | USE dom_oce ! ocean space and time domain variables |
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| 13 | USE zdf_oce ! ocean vertical physics variables |
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| 14 | USE ldftra_oce |
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| 15 | USE ldfdyn_oce |
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| 16 | USE cpl_oce ! coupled ocean-atmosphere variables |
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| 17 | USE in_out_manager ! I/O manager |
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| 18 | USE lbclnk |
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| 19 | |
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| 20 | USE daymod ! calendar (day routine) |
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| 21 | |
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| 22 | USE dtatem ! ocean temperature data (dta_tem routine) |
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| 23 | USE dtasal ! ocean salinity data (dta_sal routine) |
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| 24 | USE dtasst ! ocean sea surface temerature (dta_sst routine) |
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| 25 | USE taumod ! surface stress (tau routine) |
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| 26 | USE flxmod ! thermohaline fluxes (flx routine) |
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| 27 | USE ocesbc ! thermohaline fluxes (oce_sbc routine) |
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| 28 | USE flxrnf ! runoffs (flx_rnf routine) |
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| 29 | USE flxfwb ! freshwater budget correction (flx_fwb routine) |
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| 30 | USE closea ! closed sea freshwater budget (flx_clo routine) |
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| 31 | USE ocfzpt ! surface ocean freezing point (oc_fz_pt routine) |
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| 32 | |
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| 33 | USE trcstp ! passive tracer time-stepping (trc_stp routine) |
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| 34 | |
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| 35 | USE dynhpg ! hydrostatic pressure grad. (dyn_hpg routine) |
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| 36 | USE dynhpg_atsk ! hydrostatic pressure grad. (dyn_hpg_atsk routine) |
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| 37 | USE dynspg_fsc ! surface pressure gradient (dyn_spg_fsc routine) |
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| 38 | USE dynspg_fsc_atsk ! surface pressure gradient (dyn_spgfsc_atsk routine) |
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| 39 | USE dynspg_rl ! surface pressure gradient (dyn_spg_rl routine) |
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| 40 | USE dynkeg ! kinetic energy gradient (dyn_keg routine) |
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| 41 | USE dynvor ! vorticity term (dyn_vor_... routines) |
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| 42 | USE dynzad ! vertical advection (dyn_adv routine) |
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| 43 | USE dynldf_bilapg ! lateral mixing (dyn_ldf_bilapg routine) |
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| 44 | USE dynldf_bilap ! lateral mixing (dyn_ldf_bilap routine) |
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| 45 | USE dynldf_iso ! lateral mixing (dyn_ldf_iso routine) |
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| 46 | USE dynldf_lap ! lateral mixing (dyn_ldf_lap routine) |
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| 47 | USE dynzdf_imp ! vertical diffusion: implicit (dyn_zdf routine) |
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| 48 | USE dynzdf_imp_atsk ! vertical diffusion: implicit (dyn_zdf routine) |
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| 49 | USE dynzdf_iso ! vertical diffusion: isopycnal (dyn_zdf routine) |
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| 50 | USE dynzdf_exp ! vertical diffusion: explicit (dyn_zdf_exp routine) |
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| 51 | USE dynnxt ! time-stepping (dyn_nxt routine) |
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| 52 | |
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| 53 | USE trabbc ! bottom boundary condition (tra_bbc routine) |
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| 54 | USE trabbl ! bottom boundary layer (tra_bbl routine) |
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| 55 | USE tradmp ! internal damping (tra_dmp routine) |
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| 56 | USE traldf_bilapg ! lateral mixing (tra_ldf_bilapg routine) |
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| 57 | USE traldf_bilap ! lateral mixing (tra_ldf_bilap routine) |
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| 58 | USE traldf_iso ! lateral mixing (tra_ldf_iso routine) |
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| 59 | USE traldf_iso_zps ! lateral mixing (tra_ldf_iso_zps routine) |
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| 60 | USE traldf_lap ! lateral mixing (tra_ldf_lap routine) |
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| 61 | USE traqsr ! solar radiation penetration (tra_qsr routine) |
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| 62 | USE tranpc ! non-penetrative convection (tra_npc routine) |
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| 63 | USE tranxt ! time-stepping (tra_nxt routine) |
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| 64 | USE traadv_ctl ! advection scheme control (tra_adv_ctl routine) |
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| 65 | USE traadv_cen2 ! 2nd order centered scheme (tra_adv_cen2 routine) |
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| 66 | USE traadv_tvd ! TVD scheme (tra_adv_tvd routine) |
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| 67 | USE traadv_muscl ! MUSCL scheme (tra_adv_muscl routine) |
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| 68 | USE traadv_muscl2 ! MUSCL2 scheme (tra_adv_muscl2 routine) |
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| 69 | USE cla ! cross land advection (tra_cla routine) |
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| 70 | USE trazdf_exp ! vertical diffusion: explicit (tra_zdf_exp routine) |
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| 71 | USE trazdf_imp ! vertical diffusion: implicit (tra_zdf_imp routine) |
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| 72 | USE trazdf_iso ! vertical diffusion (tra_zdf_exp routine) |
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| 73 | USE trazdf_iso_vopt ! vertical diffusion (tra_zdf_exp routine) |
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| 74 | USE trasbc ! surface boundary condition (tra_sbc routine) |
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| 75 | |
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| 76 | USE eosbn2 ! equation of state (eos_bn2 routine) |
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| 77 | |
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| 78 | USE obc_par ! open boundary condition variables |
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| 79 | USE obcdta ! open boundary condition data (obc_dta routine) |
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| 80 | USE obcrst ! open boundary cond. restart (obc_rst routine) |
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| 81 | USE obcrad ! open boundary cond. radiation (obc_rad routine) |
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| 82 | USE obcspg ! open boundary cond spg (obc_spg routine) |
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| 83 | |
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| 84 | USE divcur ! hor. divergence and curl (div & cur routines) |
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| 85 | USE cla_div ! cross land: hor. divergence (div_cla routine) |
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| 86 | USE wzvmod ! vertical velocity (wzv routine) |
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| 87 | |
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| 88 | USE ldfslp ! iso-neutral slopes (ldf_slp routine) |
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| 89 | USE ldfeiv ! eddy induced velocity coef. (ldf_eiv routine) |
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| 90 | |
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| 91 | USE zdfbfr ! bottom friction (zdf_bfr routine) |
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| 92 | USE zdftke ! TKE vertical mixing (zdf_tke routine) |
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| 93 | USE zdfddm ! double diffusion mixing (zdf_ddm routine) |
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| 94 | USE zdfevd ! enhanced vertical diffusion (zdf_evd routine) |
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| 95 | USE zdfric ! Richardson vertical mixing (zdf_ric routine) |
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| 96 | USE zdfmxl ! Mixed-layer depth (zdf_mxl routine) |
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| 97 | |
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| 98 | USE zpshde ! partial step: hor. derivative (zps_hde routine) |
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| 99 | USE ice_oce ! sea-ice variable |
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| 100 | USE icestp ! sea-ice time-stepping (ice_stp routine) |
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| 101 | |
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| 102 | USE diawri ! Standard run outputs (dia_wri routine) |
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| 103 | USE trdicp ! Ocean momentum/tracers trends (trd_wri routine) |
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| 104 | USE trdmld ! mixed-layer trends (trd_mld routine) |
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| 105 | USE trdvor ! vorticity budget (trd_vor routine) |
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| 106 | USE diagap ! hor. mean model-data gap (dia_gap routine) |
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| 107 | USE diahdy ! dynamic height (dia_hdy routine) |
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| 108 | USE diaptr ! poleward transports (dia_ptr routine) |
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| 109 | USE diahth ! thermocline depth (dia_hth routine) |
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| 110 | USE diafwb ! freshwater budget (dia_fwb routine) |
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| 111 | USE diaspr ! suface pressure (rigid-lid) (dia_spr routine) |
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| 112 | USE flo_oce ! floats variables |
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| 113 | USE floats ! floats computation (flo_stp routine) |
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| 114 | |
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| 115 | USE stpctl ! time stepping control (stp_ctl routine) |
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| 116 | USE restart ! ocean restart (rst_wri routine) |
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| 117 | USE cpl ! exchanges in coupled mode (cpl_stp routine) |
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| 118 | |
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| 119 | IMPLICIT NONE |
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| 120 | PRIVATE |
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| 121 | |
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| 122 | !! * Routine accessibility |
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| 123 | PUBLIC stp ! called by opa.F90 |
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| 124 | |
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| 125 | !! * Substitutions |
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| 126 | # include "domzgr_substitute.h90" |
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| 127 | # include "zdfddm_substitute.h90" |
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| 128 | !!---------------------------------------------------------------------- |
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| 129 | !! OPA 9.0 , LODYC-IPSL (2003) |
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| 130 | !!---------------------------------------------------------------------- |
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| 131 | |
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| 132 | CONTAINS |
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| 133 | |
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| 134 | SUBROUTINE stp( kstp ) |
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| 135 | !!---------------------------------------------------------------------- |
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| 136 | !! *** ROUTINE stp *** |
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| 137 | !! |
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| 138 | !! ** Purpose : - Time stepping of OPA (momentum and active tracer eqs.) |
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| 139 | !! - Time stepping of LIM (dynamic and thermodynamic eqs.) |
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| 140 | !! - Tme stepping of TRC (passive tracer eqs.) |
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| 141 | !! |
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| 142 | !! ** Method : -1- Update forcings and data |
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| 143 | !! -2- Update ocean physics |
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| 144 | !! -3- Compute the t and s trends |
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| 145 | !! -4- Update t and s |
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| 146 | !! -5- Compute the momentum trends |
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| 147 | !! -6- Update the horizontal velocity |
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| 148 | !! -7- Compute the diagnostics variables (rd,N2, div,cur,w) |
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| 149 | !! -8- Outputs and diagnostics |
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| 150 | !! |
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| 151 | !! History : |
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| 152 | !! ! 91-03 () Original code |
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| 153 | !! ! 91-11 (G. Madec) |
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| 154 | !! ! 92-06 (M. Imbard) add a first output record |
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| 155 | !! ! 96-04 (G. Madec) introduction of dynspg |
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| 156 | !! ! 96-04 (M.A. Foujols) introduction of passive tracer |
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| 157 | !! 8.0 ! 97-06 (G. Madec) new architecture of call |
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| 158 | !! 8.2 ! 97-06 (G. Madec, M. Imbard, G. Roullet) free surface |
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| 159 | !! 8.2 ! 99-02 (G. Madec, N. Grima) hpg implicit |
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| 160 | !! 8.2 ! 00-07 (J-M Molines, M. Imbard) Open Bondary Conditions |
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| 161 | !! 9.0 ! 02-06 (G. Madec) free form, suppress macro-tasking |
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| 162 | !! " ! 04-08 (C. Talandier) New trends organization |
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| 163 | !!---------------------------------------------------------------------- |
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| 164 | !! * Arguments |
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| 165 | INTEGER, INTENT( in ) :: kstp ! ocean time-step index |
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| 166 | |
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| 167 | !! * local declarations |
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| 168 | INTEGER :: indic ! error indicator if < 0 |
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| 169 | INTEGER :: ii0, ii1, ij0, ij1 ! temporary integers |
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| 170 | !! --------------------------------------------------------------------- |
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| 171 | |
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| 172 | indic = 1 ! reset to no error condition |
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| 173 | adatrj = adatrj + rdt/86400._wp |
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| 174 | |
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| 175 | CALL day( kstp ) ! Calendar |
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| 176 | |
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| 177 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 178 | ! Update data, open boundaries and Forcings |
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| 179 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 180 | |
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| 181 | IF( lk_dtatem ) CALL dta_tem( kstp ) ! update 3D temperature data |
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| 182 | |
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| 183 | IF( lk_dtasal ) CALL dta_sal( kstp ) ! Salinity data |
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| 184 | |
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| 185 | IF( lk_dtasst ) CALL dta_sst( kstp ) ! Sea Surface Temperature data |
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| 186 | |
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| 187 | IF( lk_obc ) CALL obc_dta( kstp ) ! update dynamic and tracer data at open boundaries |
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| 188 | |
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| 189 | IF( lk_obc ) CALL obc_rad( kstp ) ! compute phase velocities at open boundaries |
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| 190 | |
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| 191 | CALL tau( kstp ) ! wind stress |
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| 192 | |
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| 193 | CALL flx_rnf( kstp ) ! runoff data |
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| 194 | |
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| 195 | CALL flx( kstp ) ! heat and freshwater fluxes |
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| 196 | |
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| 197 | IF( lk_ice_lim ) CALL ice_stp( kstp ) ! sea-ice model (Update stress & fluxes) |
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| 198 | |
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| 199 | CALL oce_sbc( kstp ) ! ocean surface boudaries |
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| 200 | |
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| 201 | IF( ln_fwb ) CALL flx_fwb( kstp ) ! freshwater budget |
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| 202 | |
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| 203 | IF( nclosea == 1 ) CALL flx_clo( kstp ) ! closed sea in the domain (update freshwater fluxes) |
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| 204 | |
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| 205 | IF( kstp == nit000 ) THEN |
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| 206 | IF( ninist == 1 ) THEN ! Output the initial state and forcings |
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| 207 | CALL dia_wri_state( 'output.init' ) |
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| 208 | ENDIF |
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| 209 | ENDIF |
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| 210 | |
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| 211 | IF(l_ctl) THEN ! print mean trends (used for debugging) |
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| 212 | WRITE(numout,*) ' emp - : ', SUM( emp (1:nictl+1,1:njctl+1) * tmask(1:nictl+1,1:njctl+1,1) ) |
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| 213 | WRITE(numout,*) ' emps - : ', SUM( emps (1:nictl+1,1:njctl+1) * tmask(1:nictl+1,1:njctl+1,1) ) |
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| 214 | WRITE(numout,*) ' qt - : ', SUM( qt (1:nictl+1,1:njctl+1) * tmask(1:nictl+1,1:njctl+1,1) ) |
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| 215 | WRITE(numout,*) ' qsr - : ', SUM( qsr (1:nictl+1,1:njctl+1) * tmask(1:nictl+1,1:njctl+1,1) ) |
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| 216 | WRITE(numout,*) ' runoff : ', SUM( runoff(1:nictl+1,1:njctl+1) * tmask(1:nictl+1,1:njctl+1,1) ) |
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| 217 | WRITE(numout,*) ' tmask : ', SUM( tmask (1:nictl+1,1:njctl+1,:) ) |
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| 218 | WRITE(numout,*) ' sst - : ', SUM( tn (1:nictl+1,1:njctl+1,1) * tmask(1:nictl+1,1:njctl+1,1) ) |
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| 219 | WRITE(numout,*) ' sss - : ', SUM( sn (1:nictl+1,1:njctl+1,1) * tmask(1:nictl+1,1:njctl+1,1) ) |
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| 220 | WRITE(numout,*) ' tau - x : ', SUM( taux (1:nictl+1,1:njctl+1) ), ' - y : ', SUM( tauy(1:nictl+1,1:njctl+1) ) |
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| 221 | ENDIF |
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| 222 | |
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| 223 | |
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| 224 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 225 | ! Ocean physics update |
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| 226 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 227 | !----------------------------------------------------------------------- |
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| 228 | ! VERTICAL PHYSICS |
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| 229 | !----------------------------------------------------------------------- |
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| 230 | ! N.B. ua, va, ta, sa arrays are used as workspace in this section |
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| 231 | !----------------------------------------------------------------------- |
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| 232 | |
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| 233 | CALL bn2( tb, sb, rn2 ) ! before Brunt-Vaisala frequency |
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| 234 | |
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| 235 | ! ! Vertical eddy viscosity and diffusivity coefficients |
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| 236 | IF( lk_zdfric ) CALL zdf_ric( kstp ) ! Richardson number dependent Kz |
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| 237 | IF( lk_zdftke ) CALL zdf_tke( kstp ) ! TKE closure scheme for Kz |
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| 238 | IF( lk_zdfcst ) avt (:,:,:) = avt0 * tmask(:,:,:) ! Constant Kz (reset avt to the background value) |
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| 239 | |
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| 240 | IF( cp_cfg == "orca" ) THEN ! ORCA: Reduce vertical mixing in some straits |
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| 241 | SELECT CASE ( jp_cfg ) |
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| 242 | CASE ( 05 ) ! ORCA R2 configuration |
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| 243 | avt (:,:,2) = avt (:,:,2) + 1.e-3 * upsrnfh(:,:) ! increase diffusivity of rivers mouths |
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| 244 | CASE ( 2 ) ! ORCA R2 configuration |
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| 245 | ij0 = 102 ; ij1 = 102 ; ii0 = 140 ; ii1 = 140 |
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| 246 | avt( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) , 2:jpkm1 ) = & ! Strait of Gibraltar |
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| 247 | avt( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) , 2:jpkm1 ) / 5.e0 |
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| 248 | ij0 = 88 ; ij1 = 88 ; ii0 = 161 ; ii1 = 161 |
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| 249 | avt( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) , 2:jpkm1 ) = & ! Strait of Bab el Mandeb |
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| 250 | avt( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) , 2:jpkm1 ) / 5.e0 |
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| 251 | CASE ( 4 ) ! ORCA R4 configuration |
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| 252 | ij0 = 52 ; ij1 = 52 ; ii0 = 71 ; ii1 = 71 |
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| 253 | avt( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) , 2:jpkm1 ) = & ! Strait of Gibraltar |
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| 254 | avt( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) , 2:jpkm1 ) / 5.e0 |
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| 255 | END SELECT |
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| 256 | ENDIF |
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| 257 | |
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| 258 | IF( ln_zdfevd ) CALL zdf_evd( kstp ) ! enhanced vertical eddy diffusivity |
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| 259 | |
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| 260 | IF( lk_zdfddm ) CALL zdf_ddm( kstp ) ! double diffusive mixing |
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| 261 | |
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| 262 | CALL zdf_bfr( kstp ) ! bottom friction |
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| 263 | |
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| 264 | CALL zdf_mxl( kstp ) ! mixed layer depth |
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| 265 | |
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| 266 | |
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| 267 | !----------------------------------------------------------------------- |
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| 268 | ! LATERAL PHYSICS |
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| 269 | !----------------------------------------------------------------------- |
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| 270 | ! N.B. ua, va, ta, sa arrays are used as workspace in this section |
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| 271 | !----------------------------------------------------------------------- |
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| 272 | |
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| 273 | IF( lk_ldfslp ) CALL ldf_slp( kstp, rhd, rn2 ) ! before slope of the lateral mixing |
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| 274 | |
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| 275 | #if defined key_traldf_c2d |
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| 276 | IF( lk_traldf_eiv ) CALL ldf_eiv( kstp ) ! eddy induced velocity coefficient |
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| 277 | #endif |
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| 278 | |
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| 279 | |
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| 280 | #if defined key_passivetrc |
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| 281 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 282 | ! Passive Tracer Model |
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| 283 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 284 | ! N.B. ua, va, ta, sa arrays are used as workspace in this section |
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| 285 | !----------------------------------------------------------------------- |
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| 286 | IF( kstp == nit000 ) CALL trcdia( kstp, indic ) ! diagnostics init. |
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| 287 | |
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| 288 | CALL trc_stp( kstp ) ! time-stepping |
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| 289 | |
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| 290 | CALL trcwri( kstp ) ! outputs |
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| 291 | |
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| 292 | CALL trcdia( kstp, indic ) ! diagnostics |
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| 293 | #endif |
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| 294 | |
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| 295 | |
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| 296 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 297 | ! Active tracers |
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| 298 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 299 | ! N.B. ua, va arrays are used as workspace in this section |
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| 300 | !----------------------------------------------------------------------- |
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| 301 | |
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| 302 | ta(:,:,:) = 0.e0 ! set tracer trends to zero |
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| 303 | sa(:,:,:) = 0.e0 |
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| 304 | |
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| 305 | CALL tra_sbc( kstp ) ! surface boundary condition |
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| 306 | |
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| 307 | IF( ln_traqsr ) CALL tra_qsr( kstp ) ! penetrative solar radiation qsr |
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| 308 | |
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| 309 | IF( lk_trabbc ) CALL tra_bbc( kstp ) ! bottom heat flux |
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| 310 | |
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| 311 | IF( lk_trabbl_dif ) CALL tra_bbl_dif( kstp ) ! diffusive bottom boundary layer scheme |
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| 312 | IF( lk_trabbl_adv ) CALL tra_bbl_adv( kstp ) ! advective (and/or diffusive) bottom boundary layer scheme |
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| 313 | |
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| 314 | IF( lk_tradmp ) CALL tra_dmp( kstp ) ! internal damping trends |
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| 315 | |
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| 316 | ! ! horizontal & vertical advection |
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| 317 | IF( kstp == nit000 ) CALL tra_adv_ctl ! chose/control the scheme used |
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| 318 | IF( ln_traadv_cen2 ) CALL tra_adv_cen2 ( kstp ) ! 2nd order centered scheme |
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| 319 | IF( ln_traadv_tvd ) CALL tra_adv_tvd ( kstp ) ! TVD scheme |
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| 320 | IF( ln_traadv_muscl ) CALL tra_adv_muscl ( kstp ) ! MUSCL scheme |
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| 321 | IF( ln_traadv_muscl2 ) CALL tra_adv_muscl2( kstp ) ! MUSCL2 scheme |
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| 322 | |
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| 323 | IF( n_cla == 1 ) CALL tra_cla( kstp ) ! Cross Land Advection (Update Hor. advection) |
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| 324 | |
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| 325 | ! ! lateral mixing |
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| 326 | IF( l_traldf_lap ) CALL tra_ldf_lap ( kstp ) ! iso-level laplacian |
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| 327 | IF( l_traldf_bilap ) CALL tra_ldf_bilap ( kstp ) ! iso-level bilaplacian |
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| 328 | IF( l_traldf_bilapg ) CALL tra_ldf_bilapg ( kstp ) ! s-coord. horizontal bilaplacian |
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| 329 | IF( l_traldf_iso ) CALL tra_ldf_iso ( kstp ) ! iso-neutral/geopot. laplacian |
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| 330 | IF( l_traldf_iso_zps ) CALL tra_ldf_iso_zps( kstp ) ! partial step iso-neutral/geopot. laplacian |
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| 331 | |
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| 332 | ! ! vertical diffusion |
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| 333 | IF( l_trazdf_exp ) CALL tra_zdf_exp ( kstp ) ! explicit time stepping (time splitting scheme) |
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| 334 | IF( l_trazdf_imp ) CALL tra_zdf_imp ( kstp ) ! implicit time stepping (euler backward) |
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| 335 | IF( l_trazdf_iso ) CALL tra_zdf_iso ( kstp ) ! isopycnal |
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| 336 | IF( l_trazdf_iso_vo ) CALL tra_zdf_iso_vopt( kstp ) ! vector opt. isopycnal |
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| 337 | |
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| 338 | CALL tra_nxt( kstp ) ! tracer fields at next time step |
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| 339 | |
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| 340 | IF( ln_zdfnpc ) CALL tra_npc( kstp ) ! update the new (t,s) fields by non |
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| 341 | ! ! penetrative convective adjustment |
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| 342 | |
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| 343 | IF( ln_dynhpg_imp ) THEN ! semi-implicit hpg |
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| 344 | CALL eos( ta, sa, rhd, rhop ) ! Time-filtered in situ density used in dynhpg module |
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| 345 | IF( lk_zps ) CALL zps_hde( kstp, ta, sa, rhd, & ! Partial steps: time filtered hor. gradient |
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| 346 | & gtu, gsu, gru, & ! of t, s, rd at the bottom ocean level |
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| 347 | & gtv, gsv, grv ) |
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| 348 | ELSE ! centered hpg (default case) |
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| 349 | CALL eos( tb, sb, rhd, rhop ) ! now (swap=before) in situ density for dynhpg module |
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| 350 | IF( lk_zps ) CALL zps_hde( kstp, tb, sb, rhd, & ! Partial steps: now horizontal gradient |
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| 351 | & gtu, gsu, gru, & ! of t, s, rd at the bottom ocean level |
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| 352 | & gtv, gsv, grv ) |
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| 353 | ENDIF |
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| 354 | |
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| 355 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 356 | ! Dynamics |
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| 357 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 358 | ! N.B. ta, sa arrays are used as workspace in this section |
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| 359 | !----------------------------------------------------------------------- |
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| 360 | |
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| 361 | ua(:,:,:) = 0.e0 ! set dynamics trends to zero |
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| 362 | va(:,:,:) = 0.e0 |
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| 363 | |
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| 364 | CALL dyn_keg( kstp ) ! horizontal gradient of kinetic energy |
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| 365 | |
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| 366 | ! ! vorticity term including Coriolis |
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| 367 | IF( kstp == nit000 ) CALL dyn_vor_ctl ! chose/control the scheme used |
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| 368 | IF( ln_dynvor_ens ) CALL dyn_vor_enstrophy( kstp ) ! enstrophy conserving scheme |
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| 369 | IF( ln_dynvor_ene ) CALL dyn_vor_energy ( kstp ) ! energy conserving scheme |
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| 370 | IF( ln_dynvor_mix ) CALL dyn_vor_mixed ( kstp ) ! mixed energy/enstrophy conserving scheme |
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| 371 | IF( ln_dynvor_een ) CALL dyn_vor_ene_ens ( kstp ) ! combined energy/enstrophy conserving scheme |
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| 372 | |
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| 373 | ! ! lateral mixing |
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| 374 | IF( l_dynldf_lap ) CALL dyn_ldf_lap ( kstp ) ! iso-level laplacian |
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| 375 | IF( l_dynldf_bilap ) CALL dyn_ldf_bilap ( kstp ) ! iso-level bilaplacian |
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| 376 | IF( l_dynldf_bilapg ) CALL dyn_ldf_bilapg ( kstp ) ! s-coord. horizontal bilaplacian |
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| 377 | IF( l_dynldf_iso ) CALL dyn_ldf_iso ( kstp ) ! iso-neutral laplacian |
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| 378 | |
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| 379 | ! ! horizontal gradient of Hydrostatic pressure |
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| 380 | IF( lk_dynhpg ) CALL dyn_hpg ( kstp ) ! default case (k-j-i loop) |
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| 381 | IF( lk_dynhpg_tsk ) CALL dyn_hpg_atsk( kstp ) ! autatask case (j-k-i loop) |
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| 382 | |
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| 383 | CALL dyn_zad ( kstp ) ! vertical advection |
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| 384 | |
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| 385 | ! ! vertical diffusion |
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| 386 | IF( l_dynzdf_exp ) CALL dyn_zdf_exp ( kstp ) ! explicit time stepping (time splitting scheme) |
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| 387 | IF( l_dynzdf_imp ) CALL dyn_zdf_imp ( kstp ) ! implicit time stepping (euler backward) |
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| 388 | IF( l_dynzdf_imp_tsk ) CALL dyn_zdf_imp_tsk( kstp ) ! autotask implicit time stepping (euler backward) |
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| 389 | IF( l_dynzdf_iso ) CALL dyn_zdf_iso ( kstp ) ! iso-neutral case |
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| 390 | |
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| 391 | IF( lk_dynspg_rl ) THEN |
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| 392 | IF( lk_obc ) CALL obc_spg( kstp ) ! surface pressure gradient at open boundaries |
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| 393 | ENDIF |
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| 394 | indic=0 |
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| 395 | !i bug lbc sur emp |
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| 396 | CALL lbc_lnk( emp, 'T', 1. ) |
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| 397 | !i |
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| 398 | ! ! surface pressure gradient |
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| 399 | IF( lk_dynspg_fsc ) CALL dyn_spg_fsc ( kstp, indic ) ! free surface constant volume case |
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| 400 | IF( lk_dynspg_fsc_tsk ) CALL dyn_spg_fsc_atsk( kstp, indic ) ! autotask free surface constant volume case |
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| 401 | IF( lk_dynspg_rl ) CALL dyn_spg_rl ( kstp, indic ) ! rigid-lid case |
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| 402 | |
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| 403 | CALL dyn_nxt( kstp ) ! lateral velocity at next time step |
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| 404 | |
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| 405 | |
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| 406 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 407 | ! Computation of diagnostic variables |
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| 408 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 409 | ! N.B. ua, va, ta, sa arrays are used as workspace in this section |
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| 410 | !----------------------------------------------------------------------- |
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| 411 | |
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| 412 | CALL oc_fz_pt ! ocean surface freezing temperature |
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| 413 | |
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| 414 | CALL div_cur( kstp ) ! Horizontal divergence & Relative vorticity |
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| 415 | |
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| 416 | IF( n_cla == 1 ) CALL div_cla( kstp ) ! Cross Land Advection (Update Hor. divergence) |
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| 417 | |
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| 418 | CALL wzv( kstp ) ! Vertical velocity |
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| 419 | |
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| 420 | |
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| 421 | |
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| 422 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 423 | ! Control, diagnostics and outputs |
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| 424 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 425 | ! N.B. ua, va, ta, sa arrays are used as workspace in this section |
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| 426 | !----------------------------------------------------------------------- |
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| 427 | |
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| 428 | ! ! Time loop: control and print |
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| 429 | CALL stp_ctl( kstp, indic ) |
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| 430 | IF ( indic < 0 ) nstop = nstop + 1 |
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| 431 | |
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| 432 | IF ( nstop == 0 ) THEN |
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| 433 | ! ! Diagnostics: |
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| 434 | IF( lk_floats ) CALL flo_stp( kstp ) ! drifting Floats |
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| 435 | IF( lk_trddyn ) CALL trd_dwr( kstp ) ! trends: dynamics |
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| 436 | IF( lk_trdtra ) CALL trd_twr( kstp ) ! trends: active tracers |
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| 437 | IF( lk_trdmld ) CALL trd_mld( kstp ) ! trends: Mixed-layer |
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| 438 | IF( lk_trdvor ) CALL trd_vor( kstp ) ! trends: vorticity budget |
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| 439 | IF( lk_diaspr ) CALL dia_spr( kstp ) ! Surface pressure diagnostics |
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| 440 | IF( lk_diahth ) CALL dia_hth( kstp ) ! Thermocline depth (20 degres isotherm depth) |
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| 441 | IF( lk_diagap ) CALL dia_gap( kstp ) ! basin averaged diagnostics |
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| 442 | IF( lk_diahdy ) CALL dia_hdy( kstp ) ! dynamical heigh diagnostics |
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| 443 | IF( lk_diafwb ) CALL dia_fwb( kstp ) ! Fresh water budget diagnostics |
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| 444 | |
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| 445 | IF( ln_diaptr .AND. ( kstp == nit000 .OR. MOD( kstp, nf_ptr ) == 0 ) ) & |
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| 446 | CALL dia_ptr( kstp ) ! Poleward TRansports diagnostics |
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| 447 | |
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| 448 | ! ! save and outputs |
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| 449 | CALL rst_write ( kstp ) ! ocean model: restart file output |
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| 450 | IF( lk_obc ) CALL obc_rst_wri( kstp ) ! ocean model: open boundary restart file output |
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| 451 | CALL dia_wri ( kstp, indic ) ! ocean model: outputs |
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| 452 | |
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| 453 | ENDIF |
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| 454 | |
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| 455 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 456 | ! Coupled mode |
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| 457 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 458 | |
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| 459 | IF( lk_cpl ) CALL cpl_stp( kstp ) ! coupled mode : field exchanges |
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| 460 | |
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| 461 | END SUBROUTINE stp |
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| 462 | |
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| 463 | !!====================================================================== |
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| 464 | END MODULE step |
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