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 | !! * Substitutions |
---|
31 | # include "do_loop_substitute.h90" |
---|
32 | !!---------------------------------------------------------------------- |
---|
33 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
---|
34 | !! $Id$ |
---|
35 | !! Software governed by the CeCILL license (see ./LICENSE) |
---|
36 | !!---------------------------------------------------------------------- |
---|
37 | CONTAINS |
---|
38 | |
---|
39 | SUBROUTINE usr_def_istate( pdept, ptmask, pts, pu, pv, pssh ) |
---|
40 | !!---------------------------------------------------------------------- |
---|
41 | !! *** ROUTINE usr_def_istate *** |
---|
42 | !! |
---|
43 | !! ** Purpose : Initialization of the dynamics and tracers |
---|
44 | !! Here VORTEX configuration |
---|
45 | !! |
---|
46 | !! ** Method : Set a gaussian anomaly of pressure and associated |
---|
47 | !! geostrophic velocities |
---|
48 | !!---------------------------------------------------------------------- |
---|
49 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: pdept ! depth of t-point [m] |
---|
50 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
---|
51 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts), INTENT( out) :: pts ! T & S fields [Celsius ; g/kg] |
---|
52 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pu ! i-component of the velocity [m/s] |
---|
53 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pv ! j-component of the velocity [m/s] |
---|
54 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out) :: pssh ! sea-surface height |
---|
55 | ! |
---|
56 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
57 | REAL(wp) :: zx, zy, zP0, zumax, zlambda, zn2, zf0, zH, zrho1, za, zf |
---|
58 | REAL(wp) :: zdt, zdu, zdv |
---|
59 | !!---------------------------------------------------------------------- |
---|
60 | ! |
---|
61 | IF(lwp) WRITE(numout,*) |
---|
62 | IF(lwp) WRITE(numout,*) 'usr_def_istate : VORTEX configuration, analytical definition of initial state' |
---|
63 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ ' |
---|
64 | ! |
---|
65 | ! |
---|
66 | ! |
---|
67 | zf0 = 2._wp * omega * SIN( rad * rn_ppgphi0 ) |
---|
68 | zumax = 1._wp * SIGN(1._wp, zf0) ! Here Anticyclonic: set zumax=-1 for cyclonic |
---|
69 | zlambda = SQRT(2._wp)*60.e3 ! Horizontal scale in meters |
---|
70 | zn2 = 3.e-3**2 |
---|
71 | zH = 0.5_wp * 5000._wp |
---|
72 | ! |
---|
73 | zP0 = rho0 * zf0 * zumax * zlambda * SQRT(EXP(1._wp)/2._wp) |
---|
74 | ! |
---|
75 | ! Sea level: |
---|
76 | za = -zP0 * (1._wp-EXP(-zH)) / (grav*(zH-1._wp + EXP(-zH))) |
---|
77 | DO_2D( 1, 1, 1, 1 ) |
---|
78 | zx = glamt(ji,jj) * 1.e3 |
---|
79 | zy = gphit(ji,jj) * 1.e3 |
---|
80 | zrho1 = rho0 + za * EXP(-(zx**2+zy**2)/zlambda**2) |
---|
81 | pssh(ji,jj) = zP0 * EXP(-(zx**2+zy**2)/zlambda**2)/(zrho1*grav) * ptmask(ji,jj,1) |
---|
82 | END_2D |
---|
83 | ! |
---|
84 | ! temperature: |
---|
85 | DO_2D( 1, 1, 1, 1 ) |
---|
86 | zx = glamt(ji,jj) * 1.e3 |
---|
87 | zy = gphit(ji,jj) * 1.e3 |
---|
88 | DO jk=1,jpk |
---|
89 | zdt = pdept(ji,jj,jk) |
---|
90 | zrho1 = rho0 * (1._wp + zn2*zdt/grav) |
---|
91 | IF (zdt < zH) THEN |
---|
92 | zrho1 = zrho1 - zP0 * (1._wp-EXP(zdt-zH)) & |
---|
93 | & * EXP(-(zx**2+zy**2)/zlambda**2) / (grav*(zH -1._wp + EXP(-zH))); |
---|
94 | ENDIF |
---|
95 | pts(ji,jj,jk,jp_tem) = (20._wp + (rho0-zrho1) / 0.28_wp) * ptmask(ji,jj,jk) |
---|
96 | END DO |
---|
97 | END_2D |
---|
98 | ! |
---|
99 | ! salinity: |
---|
100 | pts(:,:,:,jp_sal) = 35._wp |
---|
101 | ! |
---|
102 | ! velocities: |
---|
103 | za = 2._wp * zP0 / (zf0 * rho0 * zlambda**2) |
---|
104 | DO_2D( 0, 0, 0, 0 ) |
---|
105 | zx = glamu(ji,jj) * 1.e3 |
---|
106 | zy = gphiu(ji,jj) * 1.e3 |
---|
107 | DO jk=1, jpk |
---|
108 | zdu = 0.5_wp * (pdept(ji ,jj,jk) + pdept(ji+1,jj,jk)) |
---|
109 | IF (zdu < zH) THEN |
---|
110 | zf = (zH-1._wp-zdu+EXP(zdu-zH)) / (zH-1._wp+EXP(-zH)) |
---|
111 | pu(ji,jj,jk) = (za * zf * zy * EXP(-(zx**2+zy**2)/zlambda**2)) * ptmask(ji,jj,jk) * ptmask(ji+1,jj,jk) |
---|
112 | ELSE |
---|
113 | pu(ji,jj,jk) = 0._wp |
---|
114 | ENDIF |
---|
115 | END DO |
---|
116 | END_2D |
---|
117 | ! |
---|
118 | DO_2D( 0, 0, 0, 0 ) |
---|
119 | zx = glamv(ji,jj) * 1.e3 |
---|
120 | zy = gphiv(ji,jj) * 1.e3 |
---|
121 | DO jk=1, jpk |
---|
122 | zdv = 0.5_wp * (pdept(ji ,jj,jk) + pdept(ji,jj+1,jk)) |
---|
123 | IF (zdv < zH) THEN |
---|
124 | zf = (zH-1._wp-zdv+EXP(zdv-zH)) / (zH-1._wp+EXP(-zH)) |
---|
125 | pv(ji,jj,jk) = -(za * zf * zx * EXP(-(zx**2+zy**2)/zlambda**2)) * ptmask(ji,jj,jk) * ptmask(ji,jj+1,jk) |
---|
126 | ELSE |
---|
127 | pv(ji,jj,jk) = 0._wp |
---|
128 | ENDIF |
---|
129 | END DO |
---|
130 | END_2D |
---|
131 | ! |
---|
132 | #if defined key_mpi3 |
---|
133 | CALL lbc_lnk_nc_multi( 'usrdef_istate', pu, 'U', -1., pv, 'V', -1. ) |
---|
134 | #else |
---|
135 | CALL lbc_lnk_multi( 'usrdef_istate', pu, 'U', -1., pv, 'V', -1. ) |
---|
136 | #endif |
---|
137 | ! |
---|
138 | END SUBROUTINE usr_def_istate |
---|
139 | |
---|
140 | !!====================================================================== |
---|
141 | END MODULE usrdef_istate |
---|