[13930] | 1 | MODULE usrdef_istate |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE usrdef_istate *** |
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| 4 | !! |
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[14001] | 5 | !! === DOME configuration === |
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[13930] | 6 | !! |
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| 7 | !! User defined : set the initial state of a user configuration |
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| 8 | !!============================================================================== |
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| 9 | !! History : NEMO 4.x ! 2020-12 (J. Chanut) Original code |
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| 10 | !!---------------------------------------------------------------------- |
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| 11 | |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! usr_def_istate : initial state in Temperature and salinity |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE par_oce ! ocean space and time domain |
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| 16 | USE phycst ! physical constants |
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[14133] | 17 | USE eosbn2, ONLY: rn_a0 |
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[14254] | 18 | USE dom_oce |
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[13930] | 19 | ! |
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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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| 23 | IMPLICIT NONE |
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| 24 | PRIVATE |
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| 25 | |
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| 26 | PUBLIC usr_def_istate ! called by istate.F90 |
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[14133] | 27 | PUBlIC usr_def_istate_ssh |
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[13930] | 28 | !!---------------------------------------------------------------------- |
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| 29 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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| 30 | !! $Id: usrdef_istate.F90 12489 2020-02-28 15:55:11Z davestorkey $ |
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| 31 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 32 | !!---------------------------------------------------------------------- |
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| 33 | !! * Substitutions |
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| 34 | # include "do_loop_substitute.h90" |
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| 35 | |
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| 36 | CONTAINS |
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| 37 | |
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[14133] | 38 | SUBROUTINE usr_def_istate( pdept, ptmask, pts, pu, pv ) |
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[13930] | 39 | !!---------------------------------------------------------------------- |
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| 40 | !! *** ROUTINE usr_def_istate *** |
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| 41 | !! |
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| 42 | !! ** Purpose : Initialization of the dynamics and tracers |
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| 43 | !! Here OVERFLOW configuration |
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| 44 | !! |
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| 45 | !! ** Method : - set temprature field |
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| 46 | !! - set salinity field |
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| 47 | !! |
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| 48 | !! ** Reference: Legg, S., Hallberg, R. W. and J. B. Girton, 2006: |
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| 49 | !! Comparison of entrainment in overflows simulated by z-coordinate, |
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| 50 | !! isopycnal and non-hydrostatic models. Ocean Modelling, 11, 69-97. |
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| 51 | !! |
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| 52 | !!---------------------------------------------------------------------- |
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| 53 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: pdept ! depth of t-point [m] |
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| 54 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
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| 55 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts), INTENT( out) :: pts ! T & S fields [Celsius ; g/kg] |
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| 56 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pu ! i-component of the velocity [m/s] |
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| 57 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pv ! j-component of the velocity [m/s] |
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| 58 | ! |
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| 59 | INTEGER :: ji,jj,jk ! dummy loop indices |
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| 60 | REAL(wp) :: zdt, zn2, zrho1, zdb, zh, zstar, zxw, zro, zhe, zh0, zf |
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| 61 | REAL(wp) :: zri1, zri2, zri, ztd, ztu |
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| 62 | !!---------------------------------------------------------------------- |
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| 63 | ! |
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| 64 | IF(lwp) WRITE(numout,*) |
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| 65 | IF(lwp) WRITE(numout,*) 'usr_def_istate : DOME configuration, analytical definition of initial state' |
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[14001] | 66 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ Ocean at rest, filled with a constant stratification ' |
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| 67 | IF(lwp) WRITE(numout,*) ' salinity is used as a passive tracer here, initially=0' |
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| 68 | IF(lwp) WRITE(numout,*) ' and set to 1 inside inlet' |
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[13930] | 69 | ! |
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| 70 | ! |
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| 71 | pu (:,:,:) = 0._wp ! ocean at rest |
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| 72 | pv (:,:,:) = 0._wp |
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| 73 | pts(:,:,:,:) = 0._wp |
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| 74 | ! |
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| 75 | zn2 = (2.3e-3)**2 ! brunt vaisala squared |
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| 76 | zdb = 0.019 ! buoyancy anomaly |
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| 77 | zh0 = 300._wp |
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| 78 | zhe = 600._wp |
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| 79 | zro = sqrt(zdb*zh0) / 1.e-4 ! Rossby radius |
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| 80 | zri = 1._wp/3._wp |
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| 81 | zri1 = zri / (2._wp-zri) |
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| 82 | zri2 = -zri / (2._wp+zri) |
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| 83 | ! ! T & S profiles |
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| 84 | DO_2D( 1, 1, 1, 1 ) |
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| 85 | DO jk = 1, jpkm1 |
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| 86 | zdt = pdept(ji,jj,jk) |
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| 87 | zxw = (glamt(ji,jj) + 50._wp) * 1.e3 ! Distance from western wall |
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| 88 | zh = zh0 * exp(-zxw/zro) |
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| 89 | ! zstar = (zdt - zh - zhe) / zh |
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| 90 | ! IF (zstar.ge.zri1 ) THEN |
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| 91 | ! zf = 1._wp |
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| 92 | ! ELSEIF ( (zstar.gt.zri2).AND.(zstar.lt.zri1) ) THEN |
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| 93 | ! zf = zstar/(1._wp+zstar)/zri + 0.5_wp |
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| 94 | ! ELSE |
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| 95 | ! zf = 0._wp |
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| 96 | ! ENDIF |
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| 97 | IF (zdt > zhe-zh) THEN |
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| 98 | zf = 0._wp |
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| 99 | ELSE |
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| 100 | zf = 1._wp |
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| 101 | ENDIF |
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[14133] | 102 | zrho1 = rho0*zn2*zdt/grav/rn_a0 |
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[13930] | 103 | pts(ji,jj,jk,jp_tem) = (15._wp - zrho1) * ptmask(ji,jj,jk) |
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| 104 | ! Mass conserving initialization: |
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[14133] | 105 | ztd = 15._wp*gdepw_0(ji,jj,jk+1)-0.5*rho0*zn2/(rn_a0*grav)*gdepw_0(ji,jj,jk+1)**2 |
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| 106 | ztu = 15._wp*gdepw_0(ji,jj,jk )-0.5*rho0*zn2/(rn_a0*grav)*gdepw_0(ji,jj,jk )**2 |
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| 107 | pts(ji,jj,jk,jp_tem) = (ztd - ztu)/e3t_0(ji,jj,jk) * ptmask(ji,jj,jk) |
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[13930] | 108 | IF (Agrif_root().AND.( mjg0(jj) == Nj0glo-2 ) ) THEN |
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| 109 | pv(ji,jj,jk) = -sqrt(zdb*zh0)*exp(-zxw/zro)*(1._wp-zf) * ptmask(ji,jj,jk) |
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| 110 | ENDIF |
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| 111 | IF (Agrif_root().AND.( mjg0(jj) == Nj0glo-1 ) ) THEN |
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[14133] | 112 | pts(ji,jj,jk,jp_tem) = MIN(pts(ji,jj,jk,jp_tem), 15._wp - zdb*rho0/grav/rn_a0*(1._wp-zf)) * ptmask(ji,jj,jk) |
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[13930] | 113 | pts(ji,jj,jk,jp_sal) = 1._wp * ptmask(ji,jj,jk) |
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| 114 | ENDIF |
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| 115 | END DO |
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| 116 | END_2D |
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| 117 | ! |
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| 118 | END SUBROUTINE usr_def_istate |
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| 119 | |
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[14133] | 120 | |
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| 121 | SUBROUTINE usr_def_istate_ssh( ptmask, pssh ) |
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| 122 | !!---------------------------------------------------------------------- |
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| 123 | !! *** ROUTINE usr_def_istate *** |
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| 124 | !! |
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| 125 | !! ** Purpose : Initialization of ssh |
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| 126 | !! Here DOME configuration |
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| 127 | !! |
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| 128 | !! ** Method : set no initial sea level anomaly |
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| 129 | !! |
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| 130 | !!---------------------------------------------------------------------- |
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| 131 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! |
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| 132 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out) :: pssh ! |
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| 133 | ! |
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| 134 | !!---------------------------------------------------------------------- |
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| 135 | ! |
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| 136 | pssh(:,:) = 0._wp |
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| 137 | ! |
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| 138 | END SUBROUTINE usr_def_istate_ssh |
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| 139 | |
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[13930] | 140 | !!====================================================================== |
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| 141 | END MODULE usrdef_istate |
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