[8703] | 1 | MODULE usrdef_istate |
---|
| 2 | !!====================================================================== |
---|
| 3 | !! *** MODULE usrdef_istate *** |
---|
| 4 | !! |
---|
| 5 | !! === VORTEX configuration === |
---|
| 6 | !! |
---|
| 7 | !! User defined : set the initial state of a user configuration |
---|
| 8 | !!====================================================================== |
---|
| 9 | !! History : NEMO ! 2017-11 (J. Chanut) Original code |
---|
| 10 | !!---------------------------------------------------------------------- |
---|
| 11 | |
---|
| 12 | !!---------------------------------------------------------------------- |
---|
| 13 | !! usr_def_istate : initial state in Temperature and salinity |
---|
| 14 | !!---------------------------------------------------------------------- |
---|
| 15 | USE par_oce ! ocean space and time domain |
---|
| 16 | USE dom_oce , ONLY : glamt, gphit, glamu, gphiu, glamv, gphiv |
---|
| 17 | USE phycst ! physical constants |
---|
| 18 | ! |
---|
| 19 | USE in_out_manager ! I/O manager |
---|
| 20 | USE lib_mpp ! MPP library |
---|
| 21 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
---|
| 22 | ! |
---|
| 23 | USE usrdef_nam, ONLY : rn_ppgphi0 ! Reference latitude |
---|
| 24 | |
---|
| 25 | IMPLICIT NONE |
---|
| 26 | PRIVATE |
---|
| 27 | |
---|
| 28 | PUBLIC usr_def_istate ! called by istate.F90 |
---|
| 29 | |
---|
| 30 | !!---------------------------------------------------------------------- |
---|
[10073] | 31 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
---|
[11715] | 32 | !! $Id$ |
---|
[10073] | 33 | !! Software governed by the CeCILL license (see ./LICENSE) |
---|
[8703] | 34 | !!---------------------------------------------------------------------- |
---|
| 35 | CONTAINS |
---|
| 36 | |
---|
| 37 | SUBROUTINE usr_def_istate( pdept, ptmask, pts, pu, pv, pssh ) |
---|
| 38 | !!---------------------------------------------------------------------- |
---|
| 39 | !! *** ROUTINE usr_def_istate *** |
---|
| 40 | !! |
---|
| 41 | !! ** Purpose : Initialization of the dynamics and tracers |
---|
| 42 | !! Here VORTEX configuration |
---|
| 43 | !! |
---|
| 44 | !! ** Method : Set a gaussian anomaly of pressure and associated |
---|
| 45 | !! geostrophic velocities |
---|
| 46 | !!---------------------------------------------------------------------- |
---|
| 47 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: pdept ! depth of t-point [m] |
---|
| 48 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
---|
| 49 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts), INTENT( out) :: pts ! T & S fields [Celsius ; g/kg] |
---|
| 50 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pu ! i-component of the velocity [m/s] |
---|
| 51 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pv ! j-component of the velocity [m/s] |
---|
| 52 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out) :: pssh ! sea-surface height |
---|
| 53 | ! |
---|
| 54 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
| 55 | REAL(wp) :: zx, zy, zP0, zumax, zlambda, zn2, zf0, zH, zrho1, za, zf |
---|
| 56 | REAL(wp) :: zdt, zdu, zdv |
---|
| 57 | !!---------------------------------------------------------------------- |
---|
| 58 | ! |
---|
| 59 | IF(lwp) WRITE(numout,*) |
---|
| 60 | IF(lwp) WRITE(numout,*) 'usr_def_istate : VORTEX configuration, analytical definition of initial state' |
---|
| 61 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
---|
| 62 | ! |
---|
| 63 | ! |
---|
| 64 | ! |
---|
| 65 | zf0 = 2._wp * omega * SIN( rad * rn_ppgphi0 ) |
---|
| 66 | zumax = 1._wp * SIGN(1._wp, zf0) ! Here Anticyclonic: set zumax=-1 for cyclonic |
---|
| 67 | zlambda = SQRT(2._wp)*60.e3 ! Horizontal scale in meters |
---|
| 68 | zn2 = 3.e-3**2 |
---|
| 69 | zH = 0.5_wp * 5000._wp |
---|
| 70 | ! |
---|
| 71 | zP0 = rau0 * zf0 * zumax * zlambda * SQRT(EXP(1._wp)/2._wp) |
---|
| 72 | ! |
---|
| 73 | ! Sea level: |
---|
| 74 | za = -zP0 * (1._wp-EXP(-zH)) / (grav*(zH-1._wp + EXP(-zH))) |
---|
| 75 | DO ji=1, jpi |
---|
| 76 | DO jj=1, jpj |
---|
| 77 | zx = glamt(ji,jj) * 1.e3 |
---|
| 78 | zy = gphit(ji,jj) * 1.e3 |
---|
| 79 | zrho1 = rau0 + za * EXP(-(zx**2+zy**2)/zlambda**2) |
---|
| 80 | pssh(ji,jj) = zP0 * EXP(-(zx**2+zy**2)/zlambda**2)/(zrho1*grav) * ptmask(ji,jj,1) |
---|
| 81 | END DO |
---|
| 82 | END DO |
---|
| 83 | ! |
---|
| 84 | ! temperature: |
---|
| 85 | DO ji=1, jpi |
---|
| 86 | DO jj=1, jpj |
---|
| 87 | zx = glamt(ji,jj) * 1.e3 |
---|
| 88 | zy = gphit(ji,jj) * 1.e3 |
---|
| 89 | DO jk=1,jpk |
---|
| 90 | zdt = pdept(ji,jj,jk) |
---|
| 91 | zrho1 = rau0 * (1._wp + zn2*zdt/grav) |
---|
| 92 | IF (zdt < zH) THEN |
---|
| 93 | zrho1 = zrho1 - zP0 * (1._wp-EXP(zdt-zH)) & |
---|
| 94 | & * EXP(-(zx**2+zy**2)/zlambda**2) / (grav*(zH -1._wp + exp(-zH))); |
---|
| 95 | ENDIF |
---|
| 96 | pts(ji,jj,jk,jp_tem) = (20._wp + (rau0-zrho1) / 0.28_wp) * ptmask(ji,jj,jk) |
---|
| 97 | END DO |
---|
| 98 | END DO |
---|
| 99 | END DO |
---|
| 100 | ! |
---|
| 101 | ! salinity: |
---|
| 102 | pts(:,:,:,jp_sal) = 35._wp |
---|
| 103 | ! |
---|
| 104 | ! velocities: |
---|
| 105 | za = 2._wp * zP0 / (zf0 * rau0 * zlambda**2) |
---|
| 106 | DO ji=1, jpim1 |
---|
| 107 | DO jj=1, jpj |
---|
| 108 | zx = glamu(ji,jj) * 1.e3 |
---|
| 109 | zy = gphiu(ji,jj) * 1.e3 |
---|
| 110 | DO jk=1, jpk |
---|
| 111 | zdu = 0.5_wp * (pdept(ji ,jj,jk) + pdept(ji+1,jj,jk)) |
---|
| 112 | IF (zdu < zH) THEN |
---|
[9255] | 113 | zf = (zH-1._wp-zdu+EXP(zdu-zH)) / (zH-1._wp+EXP(-zH)) |
---|
[8703] | 114 | pu(ji,jj,jk) = (za * zf * zy * EXP(-(zx**2+zy**2)/zlambda**2)) * ptmask(ji,jj,jk) * ptmask(ji+1,jj,jk) |
---|
| 115 | ELSE |
---|
| 116 | pu(ji,jj,jk) = 0._wp |
---|
| 117 | ENDIF |
---|
| 118 | END DO |
---|
| 119 | END DO |
---|
| 120 | END DO |
---|
| 121 | ! |
---|
| 122 | DO ji=1, jpi |
---|
| 123 | DO jj=1, jpjm1 |
---|
| 124 | zx = glamv(ji,jj) * 1.e3 |
---|
| 125 | zy = gphiv(ji,jj) * 1.e3 |
---|
| 126 | DO jk=1, jpk |
---|
| 127 | zdv = 0.5_wp * (pdept(ji ,jj,jk) + pdept(ji,jj+1,jk)) |
---|
| 128 | IF (zdv < zH) THEN |
---|
[9255] | 129 | zf = (zH-1._wp-zdv+EXP(zdv-zH)) / (zH-1._wp+EXP(-zH)) |
---|
[8703] | 130 | pv(ji,jj,jk) = -(za * zf * zx * EXP(-(zx**2+zy**2)/zlambda**2)) * ptmask(ji,jj,jk) * ptmask(ji,jj+1,jk) |
---|
| 131 | ELSE |
---|
| 132 | pv(ji,jj,jk) = 0._wp |
---|
| 133 | ENDIF |
---|
| 134 | END DO |
---|
| 135 | END DO |
---|
| 136 | END DO |
---|
| 137 | |
---|
[10425] | 138 | CALL lbc_lnk( 'usrdef_istate', pu, 'U', -1. ) |
---|
| 139 | CALL lbc_lnk( 'usrdef_istate', pv, 'V', -1. ) |
---|
[8703] | 140 | ! |
---|
| 141 | END SUBROUTINE usr_def_istate |
---|
| 142 | |
---|
| 143 | !!====================================================================== |
---|
| 144 | END MODULE usrdef_istate |
---|