| 1 | MODULE domstp |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE domstp *** |
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| 4 | !! Ocean initialization : time domain |
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| 5 | !!============================================================================== |
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| 6 | |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! dom_stp : ocean time domain initialization |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! History : OPA ! 1990-10 (O. Marti) Original code |
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| 11 | !! ! 1996-01 (G. Madec) terrain following coordinates |
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| 12 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and module |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | USE oce ! ocean dynamics and tracers |
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| 15 | USE dom_oce ! ocean space and time domain |
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| 16 | USE in_out_manager ! I/O manager |
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| 17 | USE lib_mpp ! MPP library |
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| 18 | |
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| 19 | IMPLICIT NONE |
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| 20 | PRIVATE |
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| 21 | |
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| 22 | PUBLIC dom_stp ! routine called by inidom.F90 |
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| 23 | |
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| 24 | !! * Substitutions |
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| 25 | # include "domzgr_substitute.h90" |
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| 26 | !!---------------------------------------------------------------------- |
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| 27 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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| 28 | !! $Id$ |
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| 29 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 30 | !!---------------------------------------------------------------------- |
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| 31 | CONTAINS |
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| 32 | |
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| 33 | SUBROUTINE dom_stp |
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| 34 | !!---------------------------------------------------------------------- |
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| 35 | !! *** ROUTINE dom_stp *** |
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| 36 | !! |
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| 37 | !! ** Purpose : Intialize ocean time step for the run |
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| 38 | !! |
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| 39 | !! ** Method : - Initialization of a coef. use in the Asselin time |
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| 40 | !! filter: atfp1 = 1 - 2 * atfp where atfp is the Asselin time |
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| 41 | !! filter parameter read in namelist |
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| 42 | !! - Model time step: |
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| 43 | !! synchronous time intergration. |
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| 44 | !! There is one time step only, defined by: rdt for dynamics and |
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| 45 | !! tracer,wind stress, surface heat and salt fluxes |
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| 46 | !! |
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| 47 | !! ** Action : [REMOVED - rdttra: vertical profile of tracer time step] |
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| 48 | !! - atfp1 : = 1 - 2*atfp |
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| 49 | !! |
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| 50 | !! References : Bryan, K., 1984, J. Phys. Oceanogr., 14, 666-673. |
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| 51 | !!---------------------------------------------------------------------- |
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| 52 | INTEGER :: jk ! dummy loop indice |
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| 53 | !!---------------------------------------------------------------------- |
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| 54 | |
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| 55 | IF(lwp) THEN |
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| 56 | WRITE(numout,*) |
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| 57 | WRITE(numout,*) 'dom_stp : time stepping setting' |
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| 58 | WRITE(numout,*) '~~~~~~~' |
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| 59 | ENDIF |
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| 60 | |
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| 61 | ! 0. Asselin Time filter |
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| 62 | ! ---------------------- |
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| 63 | |
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| 64 | atfp1 = 1. - 2. * atfp |
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| 65 | |
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| 66 | IF(lwp) WRITE(numout,*)' synchronous time stepping' |
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| 67 | IF(lwp) WRITE(numout,*)' dynamics and tracer time step = ', rdt/3600., ' hours' |
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| 68 | |
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| 69 | |
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| 70 | END SUBROUTINE dom_stp |
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| 71 | |
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| 72 | !!====================================================================== |
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| 73 | END MODULE domstp |
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