| 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 in_out_manager ! I/O manager |
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| 16 | USE lbclnk |
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| 17 | USE trcdia |
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| 18 | USE daymod ! calendar (day routine) |
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| 19 | USE trcstp ! passive tracer time-stepping (trc_stp routine) |
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| 20 | USE dtadyn ! Lecture and interpolation of the dynamical fields |
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| 21 | USE eosbn2 ! equation of state (eos_bn2 routine) |
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| 22 | USE trcrst ! restart for passive tracers |
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| 23 | USE stpctl ! time stepping control (stp_ctl routine) |
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| 24 | |
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| 25 | IMPLICIT NONE |
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| 26 | PRIVATE |
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| 27 | |
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| 28 | !! * Routine accessibility |
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| 29 | PUBLIC stp ! called by opa.F90 |
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| 30 | |
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| 31 | !! * Substitutions |
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| 32 | # include "domzgr_substitute.h90" |
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| 33 | !!---------------------------------------------------------------------- |
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| 34 | !! OPA 9.0 , LODYC-IPSL (2003) |
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| 35 | !!---------------------------------------------------------------------- |
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| 36 | |
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| 37 | CONTAINS |
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| 38 | |
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| 39 | SUBROUTINE stp( kstp ) |
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| 40 | !!---------------------------------------------------------------------- |
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| 41 | !! *** ROUTINE stp *** |
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| 42 | !! |
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| 43 | !! ** Purpose : - Time stepping of OPA (momentum and active tracer eqs.) |
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| 44 | !! - Time stepping of LIM (dynamic and thermodynamic eqs.) |
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| 45 | !! - Tme stepping of TRC (passive tracer eqs.) |
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| 46 | !! |
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| 47 | !! ** Method : -1- Update forcings and data |
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| 48 | !! -2- Update ocean physics |
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| 49 | !! -3- Compute the t and s trends |
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| 50 | !! -4- Update t and s |
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| 51 | !! -5- Compute the momentum trends |
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| 52 | !! -6- Update the horizontal velocity |
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| 53 | !! -7- Compute the diagnostics variables (rd,N2, div,cur,w) |
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| 54 | !! -8- Outputs and diagnostics |
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| 55 | !! |
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| 56 | !! History : |
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| 57 | !! ! 91-03 () Original code |
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| 58 | !! ! 91-11 (G. Madec) |
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| 59 | !! ! 92-06 (M. Imbard) add a first output record |
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| 60 | !! ! 96-04 (G. Madec) introduction of dynspg |
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| 61 | !! ! 96-04 (M.A. Foujols) introduction of passive tracer |
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| 62 | !! 8.0 ! 97-06 (G. Madec) new architecture of call |
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| 63 | !! 8.2 ! 97-06 (G. Madec, M. Imbard, G. Roullet) free surface |
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| 64 | !! 8.2 ! 99-02 (G. Madec, N. Grima) hpg implicit |
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| 65 | !! 8.2 ! 00-07 (J-M Molines, M. Imbard) Open Bondary Conditions |
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| 66 | !! 9.0 ! 02-06 (G. Madec) free form, suppress macro-tasking |
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| 67 | !!---------------------------------------------------------------------- |
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| 68 | !! * Arguments |
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| 69 | INTEGER, INTENT( in ) :: kstp ! ocean time-step index |
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| 70 | |
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| 71 | !! * local declarations |
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| 72 | INTEGER :: indic ! error indicator if < 0 |
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| 73 | !! --------------------------------------------------------------------- |
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| 74 | |
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| 75 | indic = 1 ! reset to no error condition |
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| 76 | |
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| 77 | CALL day( kstp ) ! Calendar |
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| 78 | |
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| 79 | CALL dta_dyn( kstp ) ! Interpolation of the dynamical fields |
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| 80 | |
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| 81 | #if defined key_passivetrc |
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| 82 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 83 | ! Passive Tracer Model |
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| 84 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 85 | ! N.B. ua, va, ta, sa arrays are used as workspace in this section |
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| 86 | !----------------------------------------------------------------------- |
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| 87 | |
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| 88 | CALL trc_stp( kstp, indic) ! time-stepping |
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| 89 | |
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| 90 | |
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| 91 | #endif |
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| 92 | |
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| 93 | !>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> |
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| 94 | ! Control, diagnostics and outputs |
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| 95 | !<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
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| 96 | ! ! Time loop: control and print |
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| 97 | CALL stp_ctl( kstp ) |
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| 98 | |
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| 99 | |
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| 100 | END SUBROUTINE stp |
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| 101 | |
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| 102 | !!====================================================================== |
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| 103 | END MODULE step |
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