1 | MODULE usrdef_hgr |
---|
2 | !!====================================================================== |
---|
3 | !! *** MODULE usrdef_hgr *** |
---|
4 | !! |
---|
5 | !! === LOCK_EXCHANGE configuration === |
---|
6 | !! |
---|
7 | !! User defined : mesh and Coriolis parameter of a user configuration |
---|
8 | !!====================================================================== |
---|
9 | !! History : NEMO ! 2016-08 (S. Flavoni, G. Madec) Original code |
---|
10 | !! ! 2017-02 (P. Mathiot, S. Flavoni) Adapt code to ISOMIP case |
---|
11 | !!---------------------------------------------------------------------- |
---|
12 | |
---|
13 | !!---------------------------------------------------------------------- |
---|
14 | !! usr_def_hgr : initialize the horizontal mesh for ISOMIP configuration |
---|
15 | !!---------------------------------------------------------------------- |
---|
16 | USE dom_oce , ONLY: nimpp, njmpp ! ocean space and time domain |
---|
17 | USE par_oce ! ocean space and time domain |
---|
18 | USE phycst ! physical constants |
---|
19 | USE usrdef_nam, ONLY: rn_lam0, rn_phi0, rn_e1deg, rn_e2deg ! horizontal resolution in meters |
---|
20 | ! |
---|
21 | USE in_out_manager ! I/O manager |
---|
22 | USE lib_mpp ! MPP library |
---|
23 | USE timing ! Timing |
---|
24 | |
---|
25 | IMPLICIT NONE |
---|
26 | PRIVATE |
---|
27 | |
---|
28 | PUBLIC usr_def_hgr ! called by domhgr.F90 |
---|
29 | |
---|
30 | !!---------------------------------------------------------------------- |
---|
31 | !! NEMO/OPA 4.0 , NEMO Consortium (2016) |
---|
32 | !! $Id$ |
---|
33 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
---|
34 | !!---------------------------------------------------------------------- |
---|
35 | CONTAINS |
---|
36 | |
---|
37 | SUBROUTINE usr_def_hgr( plamt , plamu , plamv , plamf , & ! geographic position (required) |
---|
38 | & pphit , pphiu , pphiv , pphif , & ! |
---|
39 | & kff , pff_f , pff_t , & ! Coriolis parameter (if domain not on the sphere) |
---|
40 | & pe1t , pe1u , pe1v , pe1f , & ! scale factors (required) |
---|
41 | & pe2t , pe2u , pe2v , pe2f , & ! |
---|
42 | & ke1e2u_v , pe1e2u , pe1e2v ) ! u- & v-surfaces (if gridsize reduction is used in strait(s)) |
---|
43 | !!---------------------------------------------------------------------- |
---|
44 | !! *** ROUTINE usr_def_hgr *** |
---|
45 | !! |
---|
46 | !! ** Purpose : user defined mesh and Coriolis parameter |
---|
47 | !! |
---|
48 | !! ** Method : set all intent(out) argument to a proper value |
---|
49 | !! ISOMIP configuration |
---|
50 | !! |
---|
51 | !! ** Action : - define longitude & latitude of t-, u-, v- and f-points (in degrees) |
---|
52 | !! - define i- & j-scale factors at t-, u-, v- and f-points (in meters) |
---|
53 | !! - define u- & v-surfaces (in m2) |
---|
54 | !!---------------------------------------------------------------------- |
---|
55 | REAL(wp), DIMENSION(:,:), INTENT(out) :: plamt, plamu, plamv, plamf ! longitude outputs [degrees] |
---|
56 | REAL(wp), DIMENSION(:,:), INTENT(out) :: pphit, pphiu, pphiv, pphif ! latitude outputs [degrees] |
---|
57 | INTEGER , INTENT(out) :: kff ! =1 Coriolis parameter computed here, =0 otherwise |
---|
58 | REAL(wp), DIMENSION(:,:), INTENT(out) :: pff_f, pff_t ! Coriolis factor at f-point [1/s] |
---|
59 | REAL(wp), DIMENSION(:,:), INTENT(out) :: pe1t, pe1u, pe1v, pe1f ! i-scale factors [m] |
---|
60 | REAL(wp), DIMENSION(:,:), INTENT(out) :: pe2t, pe2u, pe2v, pe2f ! j-scale factors [m] |
---|
61 | INTEGER , INTENT(out) :: ke1e2u_v ! =1 u- & v-surfaces computed here, =0 otherwise |
---|
62 | REAL(wp), DIMENSION(:,:), INTENT(out) :: pe1e2u, pe1e2v ! u- & v-surfaces (if reduction in strait) [m2] |
---|
63 | ! |
---|
64 | INTEGER :: ji, jj ! dummy loop indices |
---|
65 | REAL(wp) :: zfact, zti, zui, zvi, zfi, ztj, zuj, zvj, zfj ! local scalars |
---|
66 | !!------------------------------------------------------------------------------- |
---|
67 | ! |
---|
68 | IF( nn_timing == 1 ) CALL timing_start('usr_def_hgr') |
---|
69 | ! |
---|
70 | IF(lwp) WRITE(numout,*) |
---|
71 | IF(lwp) WRITE(numout,*) 'usr_def_hgr : ISOMIP configuration' |
---|
72 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~' |
---|
73 | ! |
---|
74 | ! !== grid point position ==! (in kilometers) |
---|
75 | |
---|
76 | IF(lwp) WRITE(numout,*) |
---|
77 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere with regular grid-spacing' |
---|
78 | IF(lwp) WRITE(numout,*) ' given by rn_e1deg and rn_e2deg' |
---|
79 | |
---|
80 | DO jj = 1, jpj |
---|
81 | DO ji = 1, jpi |
---|
82 | zti = FLOAT( ji - 1 + nimpp - 1 ) ; ztj = FLOAT( jj - 1 + njmpp - 1 ) |
---|
83 | zui = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = FLOAT( jj - 1 + njmpp - 1 ) |
---|
84 | zvi = FLOAT( ji - 1 + nimpp - 1 ) ; zvj = FLOAT( jj - 1 + njmpp - 1 ) + 0.5 |
---|
85 | zfi = FLOAT( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = FLOAT( jj - 1 + njmpp - 1 ) + 0.5 |
---|
86 | ! Longitude |
---|
87 | plamt(ji,jj) = rn_lam0 + rn_e1deg * zti |
---|
88 | plamu(ji,jj) = rn_lam0 + rn_e1deg * zui |
---|
89 | plamv(ji,jj) = rn_lam0 + rn_e1deg * zvi |
---|
90 | plamf(ji,jj) = rn_lam0 + rn_e1deg * zfi |
---|
91 | ! Latitude |
---|
92 | pphit(ji,jj) = rn_phi0 + rn_e2deg * ztj |
---|
93 | pphiu(ji,jj) = rn_phi0 + rn_e2deg * zuj |
---|
94 | pphiv(ji,jj) = rn_phi0 + rn_e2deg * zvj |
---|
95 | pphif(ji,jj) = rn_phi0 + rn_e2deg * zfj |
---|
96 | ! !== Horizontal scale factors ==! (in meters) |
---|
97 | ! e1 |
---|
98 | pe1t(ji,jj) = ra * rad * COS( rad * pphit(ji,jj) ) * rn_e1deg |
---|
99 | pe1u(ji,jj) = ra * rad * COS( rad * pphiu(ji,jj) ) * rn_e1deg |
---|
100 | pe1v(ji,jj) = ra * rad * COS( rad * pphiv(ji,jj) ) * rn_e1deg |
---|
101 | pe1f(ji,jj) = ra * rad * COS( rad * pphif(ji,jj) ) * rn_e1deg |
---|
102 | ! e2 |
---|
103 | pe2t(ji,jj) = ra * rad * rn_e2deg |
---|
104 | pe2u(ji,jj) = ra * rad * rn_e2deg |
---|
105 | pe2v(ji,jj) = ra * rad * rn_e2deg |
---|
106 | pe2f(ji,jj) = ra * rad * rn_e2deg |
---|
107 | END DO |
---|
108 | END DO |
---|
109 | ! ! NO reduction of grid size in some straits |
---|
110 | ke1e2u_v = 0 ! ==>> u_ & v_surfaces will be computed in dom_ghr routine |
---|
111 | pe1e2u(:,:) = 0._wp ! CAUTION: set to zero to avoid error with some compilers that |
---|
112 | pe1e2v(:,:) = 0._wp ! require an initialization of INTENT(out) arguments |
---|
113 | ! |
---|
114 | ! |
---|
115 | ! !== Coriolis parameter ==! |
---|
116 | kff = 0 ! Coriolis parameter calculated on the sphere |
---|
117 | ! |
---|
118 | ! |
---|
119 | pff_f(:,:) = 0._wp ! CAUTION: set to zero to avoid error with some compilers that |
---|
120 | pff_t(:,:) = 0._wp ! require an initialization of INTENT(out) arguments |
---|
121 | ! |
---|
122 | IF( nn_timing == 1 ) CALL timing_stop('usr_def_hgr') |
---|
123 | ! |
---|
124 | END SUBROUTINE usr_def_hgr |
---|
125 | |
---|
126 | !!====================================================================== |
---|
127 | END MODULE usrdef_hgr |
---|