[8703] | 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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| 5 | !! === VORTEX configuration === |
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| 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 ! 2017-11 (J. Chanut) Original code |
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[14053] | 10 | !! ! 2020-11 (S. Techene, G. Madec) separate tsuv from ssh |
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[8703] | 11 | !!---------------------------------------------------------------------- |
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| 12 | |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! usr_def_istate : initial state in Temperature and salinity |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE par_oce ! ocean space and time domain |
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| 17 | USE dom_oce , ONLY : glamt, gphit, glamu, gphiu, glamv, gphiv |
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| 18 | USE phycst ! physical constants |
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[14133] | 19 | USE eosbn2 , ONLY : rn_a0 |
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[8703] | 20 | ! |
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| 21 | USE in_out_manager ! I/O manager |
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| 22 | USE lib_mpp ! MPP library |
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| 23 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 24 | ! |
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| 25 | USE usrdef_nam, ONLY : rn_ppgphi0 ! Reference latitude |
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| 26 | |
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| 27 | IMPLICIT NONE |
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| 28 | PRIVATE |
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| 29 | |
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[14053] | 30 | PUBLIC usr_def_istate ! called by istate.F90 |
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| 31 | PUBLIC usr_def_istate_ssh ! called by domqco.F90 |
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[8703] | 32 | |
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[12740] | 33 | !! * Substitutions |
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| 34 | # include "do_loop_substitute.h90" |
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[8703] | 35 | !!---------------------------------------------------------------------- |
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[10073] | 36 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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[8703] | 37 | !! $Id$ |
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[10073] | 38 | !! Software governed by the CeCILL license (see ./LICENSE) |
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[8703] | 39 | !!---------------------------------------------------------------------- |
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| 40 | CONTAINS |
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| 41 | |
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[14053] | 42 | SUBROUTINE usr_def_istate( pdept, ptmask, pts, pu, pv ) |
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[8703] | 43 | !!---------------------------------------------------------------------- |
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| 44 | !! *** ROUTINE usr_def_istate *** |
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| 45 | !! |
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| 46 | !! ** Purpose : Initialization of the dynamics and tracers |
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| 47 | !! Here VORTEX configuration |
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| 48 | !! |
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| 49 | !! ** Method : Set a gaussian anomaly of pressure and associated |
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| 50 | !! geostrophic velocities |
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| 51 | !!---------------------------------------------------------------------- |
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| 52 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: pdept ! depth of t-point [m] |
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| 53 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
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| 54 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts), INTENT( out) :: pts ! T & S fields [Celsius ; g/kg] |
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| 55 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pu ! i-component of the velocity [m/s] |
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| 56 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pv ! j-component of the velocity [m/s] |
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| 57 | ! |
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| 58 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 59 | REAL(wp) :: zx, zy, zP0, zumax, zlambda, zn2, zf0, zH, zrho1, za, zf |
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| 60 | REAL(wp) :: zdt, zdu, zdv |
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| 61 | !!---------------------------------------------------------------------- |
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| 62 | ! |
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| 63 | IF(lwp) WRITE(numout,*) |
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| 64 | IF(lwp) WRITE(numout,*) 'usr_def_istate : VORTEX configuration, analytical definition of initial state' |
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| 65 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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| 66 | ! |
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| 67 | ! |
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| 68 | ! |
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| 69 | zf0 = 2._wp * omega * SIN( rad * rn_ppgphi0 ) |
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| 70 | zumax = 1._wp * SIGN(1._wp, zf0) ! Here Anticyclonic: set zumax=-1 for cyclonic |
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[14053] | 71 | zlambda = SQRT(2._wp)*60.e3 ! Horizontal scale in meters |
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[8703] | 72 | zn2 = 3.e-3**2 |
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| 73 | zH = 0.5_wp * 5000._wp |
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| 74 | ! |
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[12489] | 75 | zP0 = rho0 * zf0 * zumax * zlambda * SQRT(EXP(1._wp)/2._wp) |
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[8703] | 76 | ! |
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| 77 | ! temperature: |
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[15548] | 78 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) |
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[12740] | 79 | zx = glamt(ji,jj) * 1.e3 |
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| 80 | zy = gphit(ji,jj) * 1.e3 |
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| 81 | DO jk=1,jpk |
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| 82 | zdt = pdept(ji,jj,jk) |
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| 83 | zrho1 = rho0 * (1._wp + zn2*zdt/grav) |
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| 84 | IF (zdt < zH) THEN |
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| 85 | zrho1 = zrho1 - zP0 * (1._wp-EXP(zdt-zH)) & |
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| 86 | & * EXP(-(zx**2+zy**2)/zlambda**2) / (grav*(zH -1._wp + EXP(-zH))); |
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| 87 | ENDIF |
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[14133] | 88 | pts(ji,jj,jk,jp_tem) = (20._wp + (rho0-zrho1) / rn_a0 ) * ptmask(ji,jj,jk) |
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[8703] | 89 | END DO |
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[12740] | 90 | END_2D |
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[8703] | 91 | ! |
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| 92 | ! salinity: |
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[14086] | 93 | pts(:,:,:,jp_sal) = 35._wp * ptmask(:,:,:) |
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[8703] | 94 | ! |
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| 95 | ! velocities: |
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[12489] | 96 | za = 2._wp * zP0 / (zf0 * rho0 * zlambda**2) |
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[13295] | 97 | DO_2D( 0, 0, 0, 0 ) |
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[12740] | 98 | zx = glamu(ji,jj) * 1.e3 |
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| 99 | zy = gphiu(ji,jj) * 1.e3 |
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| 100 | DO jk=1, jpk |
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| 101 | zdu = 0.5_wp * (pdept(ji ,jj,jk) + pdept(ji+1,jj,jk)) |
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| 102 | IF (zdu < zH) THEN |
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| 103 | zf = (zH-1._wp-zdu+EXP(zdu-zH)) / (zH-1._wp+EXP(-zH)) |
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| 104 | pu(ji,jj,jk) = (za * zf * zy * EXP(-(zx**2+zy**2)/zlambda**2)) * ptmask(ji,jj,jk) * ptmask(ji+1,jj,jk) |
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| 105 | ELSE |
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| 106 | pu(ji,jj,jk) = 0._wp |
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| 107 | ENDIF |
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[8703] | 108 | END DO |
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[12740] | 109 | END_2D |
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[8703] | 110 | ! |
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[13295] | 111 | DO_2D( 0, 0, 0, 0 ) |
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[12740] | 112 | zx = glamv(ji,jj) * 1.e3 |
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| 113 | zy = gphiv(ji,jj) * 1.e3 |
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| 114 | DO jk=1, jpk |
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| 115 | zdv = 0.5_wp * (pdept(ji ,jj,jk) + pdept(ji,jj+1,jk)) |
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| 116 | IF (zdv < zH) THEN |
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| 117 | zf = (zH-1._wp-zdv+EXP(zdv-zH)) / (zH-1._wp+EXP(-zH)) |
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| 118 | pv(ji,jj,jk) = -(za * zf * zx * EXP(-(zx**2+zy**2)/zlambda**2)) * ptmask(ji,jj,jk) * ptmask(ji,jj+1,jk) |
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| 119 | ELSE |
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| 120 | pv(ji,jj,jk) = 0._wp |
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| 121 | ENDIF |
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[8703] | 122 | END DO |
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[12740] | 123 | END_2D |
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| 124 | ! |
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[14433] | 125 | CALL lbc_lnk( 'usrdef_istate', pu, 'U', -1., pv, 'V', -1. ) |
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[8703] | 126 | ! |
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| 127 | END SUBROUTINE usr_def_istate |
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| 128 | |
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[14053] | 129 | |
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| 130 | SUBROUTINE usr_def_istate_ssh( ptmask, pssh ) |
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| 131 | !!---------------------------------------------------------------------- |
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| 132 | !! *** ROUTINE usr_def_istate *** |
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| 133 | !! |
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| 134 | !! ** Purpose : Initialization of ssh |
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| 135 | !! Here VORTEX configuration |
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| 136 | !! |
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| 137 | !! ** Method : Set ssh according to a gaussian anomaly of pressure and associated |
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| 138 | !! geostrophic velocities |
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| 139 | !!---------------------------------------------------------------------- |
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| 140 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
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| 141 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out) :: pssh ! sea-surface height [m] |
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| 142 | ! |
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| 143 | INTEGER :: ji, jj ! dummy loop indices |
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| 144 | REAL(wp) :: zx, zy, zP0, zumax, zlambda, zf0, zH, zrho1, za |
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| 145 | !!---------------------------------------------------------------------- |
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| 146 | ! |
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| 147 | IF(lwp) WRITE(numout,*) |
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| 148 | IF(lwp) WRITE(numout,*) 'usr_def_istate_ssh : VORTEX configuration, analytical definition of initial state' |
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| 149 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
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| 150 | ! |
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| 151 | ! |
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| 152 | ! |
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| 153 | zf0 = 2._wp * omega * SIN( rad * rn_ppgphi0 ) |
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| 154 | zumax = 1._wp * SIGN(1._wp, zf0) ! Here Anticyclonic: set zumax=-1 for cyclonic |
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| 155 | zlambda = SQRT(2._wp)*60.e3 ! Horizontal scale in meters |
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| 156 | zH = 0.5_wp * 5000._wp |
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| 157 | ! |
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| 158 | zP0 = rho0 * zf0 * zumax * zlambda * SQRT(EXP(1._wp)/2._wp) |
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| 159 | ! |
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| 160 | ! Sea level: |
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| 161 | za = -zP0 * (1._wp-EXP(-zH)) / (grav*(zH-1._wp + EXP(-zH))) |
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[15548] | 162 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) |
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[14053] | 163 | zx = glamt(ji,jj) * 1.e3 |
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| 164 | zy = gphit(ji,jj) * 1.e3 |
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| 165 | zrho1 = rho0 + za * EXP(-(zx**2+zy**2)/zlambda**2) |
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| 166 | pssh(ji,jj) = zP0 * EXP(-(zx**2+zy**2)/zlambda**2)/(zrho1*grav) * ptmask(ji,jj,1) |
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| 167 | END_2D |
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| 168 | |
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| 169 | END SUBROUTINE usr_def_istate_ssh |
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| 170 | |
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[8703] | 171 | !!====================================================================== |
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| 172 | END MODULE usrdef_istate |
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