[9302] | 1 | MODULE usrdef_sbc |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE usrdef_sbc *** |
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| 4 | !! |
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[9403] | 5 | !! === CANAL configuration === |
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[9302] | 6 | !! |
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| 7 | !! User defined : surface forcing of a user configuration |
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| 8 | !!====================================================================== |
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| 9 | !! History : 4.0 ! 2017-11 (J.Chanut) user defined interface |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! usr_def_sbc : user defined surface bounday conditions in OVERFLOW case |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE oce ! ocean dynamics and tracers |
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| 16 | USE dom_oce ! ocean space and time domain |
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| 17 | USE sbc_oce ! Surface boundary condition: ocean fields |
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| 18 | USE phycst ! physical constants |
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[9403] | 19 | USE usrdef_nam, ONLY : rn_u10, rn_uofac, rn_windszy |
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[9302] | 20 | ! |
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| 21 | USE in_out_manager ! I/O manager |
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| 22 | USE lib_mpp ! distribued memory computing library |
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| 23 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 24 | USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) |
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| 25 | |
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| 26 | IMPLICIT NONE |
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| 27 | PRIVATE |
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| 28 | |
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[9659] | 29 | PUBLIC usrdef_sbc_oce ! routine called in sbcmod module |
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| 30 | PUBLIC usrdef_sbc_ice_tau ! routine called by icestp.F90 for ice dynamics |
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| 31 | PUBLIC usrdef_sbc_ice_flx ! routine called by icestp.F90 for ice thermo |
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[9302] | 32 | |
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| 33 | !! * Substitutions |
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| 34 | # include "vectopt_loop_substitute.h90" |
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| 35 | !!---------------------------------------------------------------------- |
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[10073] | 36 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[9302] | 37 | !! $Id$ |
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[10073] | 38 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[9302] | 39 | !!---------------------------------------------------------------------- |
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| 40 | CONTAINS |
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| 41 | |
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| 42 | SUBROUTINE usrdef_sbc_oce( kt ) |
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| 43 | !!--------------------------------------------------------------------- |
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| 44 | !! *** ROUTINE usr_def_sbc *** |
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| 45 | !! |
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| 46 | !! ** Purpose : provide at each time-step the surface boundary |
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| 47 | !! condition, i.e. the momentum, heat and freshwater fluxes. |
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| 48 | !! |
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[9403] | 49 | !! ** Method : all 0 fields, for CANAL case |
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[9302] | 50 | !! CAUTION : never mask the surface stress field ! |
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| 51 | !! |
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| 52 | !! ** Action : - set to ZERO all the ocean surface boundary condition, i.e. |
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| 53 | !! utau, vtau, taum, wndm, qns, qsr, emp, sfx |
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| 54 | !! |
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| 55 | !!---------------------------------------------------------------------- |
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| 56 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 57 | |
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| 58 | INTEGER :: ji, jj ! dummy loop indices |
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| 59 | REAL(wp) :: zrhoair = 1.22 ! approximate air density [Kg/m3] |
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| 60 | REAL(wp) :: zcd = 1.13e-3 ! approximate drag coefficient |
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| 61 | REAL(wp) :: zrhocd ! Rho * Cd |
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| 62 | REAL(wp), DIMENSION(jpi,jpj) :: zwndrel ! relative wind |
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| 63 | !!--------------------------------------------------------------------- |
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| 64 | ! |
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| 65 | zrhocd = zrhoair * zcd |
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| 66 | |
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| 67 | IF( kt == nit000 ) THEN |
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| 68 | ! |
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| 69 | IF(lwp) WRITE(numout,*)' usr_sbc : EW_CANAL case: surface forcing' |
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| 70 | IF(lwp) WRITE(numout,*)' ~~~~~~~~~~~ vtau = taum = wndm = qns = qsr = emp = sfx = 0' |
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| 71 | ! |
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| 72 | utau(:,:) = 0._wp |
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[9403] | 73 | IF( rn_u10 /= 0. .AND. rn_windszy > 0. ) THEN |
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| 74 | WHERE( ABS(gphit) <= rn_windszy/2. ) utau(:,:) = zrhocd * rn_u10 * rn_u10 |
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[9302] | 75 | ENDIF |
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| 76 | vtau(:,:) = 0._wp |
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| 77 | taum(:,:) = 0._wp |
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| 78 | wndm(:,:) = 0._wp |
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| 79 | ! |
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| 80 | emp (:,:) = 0._wp |
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| 81 | sfx (:,:) = 0._wp |
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| 82 | qns (:,:) = 0._wp |
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| 83 | qsr (:,:) = 0._wp |
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| 84 | ! |
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| 85 | ENDIF |
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| 86 | |
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| 87 | IF( rn_uofac /= 0. ) THEN |
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| 88 | |
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[9403] | 89 | WHERE( ABS(gphit) <= rn_windszy/2. ) |
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[9302] | 90 | zwndrel(:,:) = rn_u10 - rn_uofac * un(:,:,1) |
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| 91 | ELSEWHERE |
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| 92 | zwndrel(:,:) = - rn_uofac * un(:,:,1) |
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| 93 | END WHERE |
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| 94 | utau(:,:) = zrhocd * zwndrel(:,:) * zwndrel(:,:) |
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| 95 | |
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| 96 | zwndrel(:,:) = - rn_uofac * vn(:,:,1) |
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| 97 | vtau(:,:) = zrhocd * zwndrel(:,:) * zwndrel(:,:) |
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| 98 | |
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| 99 | ENDIF |
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| 100 | ! |
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| 101 | END SUBROUTINE usrdef_sbc_oce |
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| 102 | |
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| 103 | SUBROUTINE usrdef_sbc_ice_tau( kt ) |
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| 104 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 105 | END SUBROUTINE usrdef_sbc_ice_tau |
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| 106 | |
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| 107 | SUBROUTINE usrdef_sbc_ice_flx( kt ) |
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| 108 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 109 | END SUBROUTINE usrdef_sbc_ice_flx |
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| 110 | |
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| 111 | !!====================================================================== |
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| 112 | END MODULE usrdef_sbc |
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