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ldftra_c2d.h90 in trunk/NEMO/OPA_SRC/LDF – NEMO

source: trunk/NEMO/OPA_SRC/LDF/ldftra_c2d.h90 @ 719

Last change on this file since 719 was 719, checked in by ctlod, 17 years ago

get back to the nemo_v2_3 version for trunk
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 6.0 KB
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1   !!----------------------------------------------------------------------
2   !!                      ***  ldftra_c2d.h90  ***
3   !!----------------------------------------------------------------------
4
5   !!----------------------------------------------------------------------
6   !!   OPA 9.0 , LOCEAN-IPSL (2005)
7   !! $Header$
8   !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt
9   !!----------------------------------------------------------------------
10
11   SUBROUTINE ldf_tra_c2d( ld_print )
12      !!----------------------------------------------------------------------
13      !!                  ***  ROUTINE ldftra_c2d  ***
14      !!             
15      !! ** Purpose :   initializations of horizontally non uniform eddy
16      !!      diffusivity coefficients
17      !!
18      !! ** Method :
19      !!       biharmonic operator    : ahtt = defined at T-level
20      !!                                ahtu,ahtv,ahtw never used
21      !!       harmonic operator (ahtt never used)
22      !!           iso-model level   : ahtu, ahtv defined at u-, v-points
23      !!         isopycnal         : ahtu, ahtv, ahtw defined at u-, v-, w-pts
24      !!         or geopotential   
25      !!       eddy induced velocity
26      !!           always harmonic   : aeiu, aeiv, aeiw defined at u-, v-, w-pts
27      !!
28      !!----------------------------------------------------------------------
29      !! * Arguments
30      LOGICAL, INTENT (in) :: ld_print   ! If true, print arrays in numout
31
32      !! * Local variables
33# if defined key_traldf_eiv && defined key_orca_r4
34      INTEGER ::   ji, jj                  ! dummy loop indices
35# endif
36# if defined key_orca_r4
37      INTEGER :: i1, i2, j1, j2
38# endif
39      REAL(wp) ::   za00, zdx_max
40     
41      !!----------------------------------------------------------------------
42
43      IF( lk_traldf_eiv ) THEN
44         IF(lwp) WRITE(numout,*)
45         IF(lwp) WRITE(numout,*) ' ldf_tra_c2d : 2D eddy diffusivity and eddy'
46         IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~   --  induced velocity coefficients'
47         IF(lwp) WRITE(numout,*)
48      ELSE
49         IF(lwp) WRITE(numout,*)
50         IF(lwp) WRITE(numout,*) ' ldf_tra2d : 2D eddy diffusivity coefficient'
51         IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~   --'
52         IF(lwp) WRITE(numout,*)
53      ENDIF
54
55      zdx_max = MAXVAL( e1t(:,:) )
56      IF( lk_mpp )   CALL mpp_max( zdx_max )   ! max over the global domain
57
58      ! harmonic operator : (U-, V-, W-points)
59      ! ==================
60      IF( ln_traldf_lap ) THEN
61 
62         za00 = aht0 / zdx_max
63 
64!RB         ahtu(:,:) = za00 * e1u(:,:)               ! set ahtu = ahtv at u- and v-points,
65!RB         ahtv(:,:) = za00 * e1f(:,:)               ! and ahtw at w-point (idem T-point)
66!RB         ahtw(:,:) = za00 * e1t(:,:)               !
67         ahtu(:,:) = aht0                ! set ahtu = ahtv at u- and v-points,
68         ahtv(:,:) = aht0                ! and ahtw at w-point (idem T-point)
69         ahtw(:,:) = aht0                !
70
71
72
73         CALL lbc_lnk( ahtu, 'U', 1. )   ! Lateral boundary conditions
74         CALL lbc_lnk( ahtv, 'V', 1. )   ! (no change of sign)
75         CALL lbc_lnk( ahtw, 'W', 1. )
76
77         ! Control print
78         IF( lwp .AND. ld_print ) THEN
79            WRITE(numout,*)
80            WRITE(numout,*) 'inildf: ahtu array'
81            CALL prihre( ahtu, jpi, jpj, 1, jpi, 1,   &
82               &                         1, jpj, 1, 1.e-3, numout )
83            WRITE(numout,*)
84            WRITE(numout,*) 'inildf: ahtv array'
85            CALL prihre( ahtv, jpi, jpj, 1, jpi, 1,   &
86               &                         1, jpj, 1, 1.e-3, numout )
87            WRITE(numout,*)
88            WRITE(numout,*) 'inildf: ahtw array'
89            CALL prihre( ahtw, jpi, jpj, 1, jpi, 1,   &
90               &                         1, jpj, 1, 1.e-3, numout )
91         ENDIF
92      ENDIF
93     
94      ! biharmonic operator : (T-point)
95      ! ====================
96      IF( ln_traldf_bilap ) THEN
97         ! (USER: modify ahtt following your desiderata)
98         ! Here: ahm is proportional to the cube of the maximum of the gridspacing
99         !       in the to horizontal direction
100
101         za00 = aht0 / ( zdx_max * zdx_max * zdx_max )
102         ahtt(:,:) = za00 * e1t(:,:) * e1t(:,:) *e1t(:,:)      ! set ahtt at T-point
103
104         CALL lbc_lnk( ahtt, 'T', 1. )   ! Lateral boundary conditions on ( ahtt )
105
106         ! Control print
107         IF( lwp .AND. ld_print ) THEN
108            WRITE(numout,*)
109            WRITE(numout,*) 'inildf: 2D ahtt array'
110            CALL prihre( ahtt, jpi, jpj, 1, jpi, 1,   &
111               &                         1, jpj, 1, 1.e-3, numout )
112         ENDIF
113      ENDIF
114
115# if defined key_traldf_eiv
116      ! set aeiu = aeiv at u- and v-points, and aeiw at w-point (idem T-point)
117      ! (here no space variation)
118      aeiu(:,:) = aeiv0
119      aeiv(:,:) = aeiv0
120      aeiw(:,:) = aeiv0
121     
122      IF( cp_cfg == "orca" .AND. jp_cfg == 4 ) THEN
123         !                                 ! Cancel eiv in Gibraltar strait
124         aeiu( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0
125         aeiv( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0
126         aeiw( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0
127         !                                 ! Cancel eiv in Mediterrannean sea
128         aeiu( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0
129         aeiv( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0
130         aeiw( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0
131      ENDIF
132
133      ! Lateral boundary conditions on ( aeiu, aeiv, aeiw )
134      CALL lbc_lnk( aeiu, 'U', 1. )
135      CALL lbc_lnk( aeiv, 'V', 1. )
136      CALL lbc_lnk( aeiw, 'W', 1. )
137
138      ! Control print
139      IF( lwp .AND. ld_print ) THEN
140         WRITE(numout,*)
141         WRITE(numout,*) 'inildf: aeiu array'
142         CALL prihre(aeiu,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout)
143         WRITE(numout,*)
144         WRITE(numout,*) 'inildf: aeiv array'
145         CALL prihre(aeiv,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout)
146         WRITE(numout,*)
147         WRITE(numout,*) 'inildf: aeiw array'
148         CALL prihre(aeiw,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout)
149      ENDIF
150
151# endif
152
153   END SUBROUTINE ldf_tra_c2d
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