New URL for NEMO forge!   http://forge.nemo-ocean.eu

Since March 2022 along with NEMO 4.2 release, the code development moved to a self-hosted GitLab.
This present forge is now archived and remained online for history.
ldftra_c2d.h90 in tags/nemo_v3_3_1/NEMOGCM/NEMO/OPA_SRC/LDF – NEMO

source: tags/nemo_v3_3_1/NEMOGCM/NEMO/OPA_SRC/LDF/ldftra_c2d.h90 @ 2739

Last change on this file since 2739 was 2715, checked in by rblod, 13 years ago

First attempt to put dynamic allocation on the trunk
  • Property svn:keywords set to Id
File size: 6.9 KB
Line 
1   !!----------------------------------------------------------------------
2   !!                      ***  ldftra_c2d.h90  ***
3   !!----------------------------------------------------------------------
4
5   !!----------------------------------------------------------------------
6   !! NEMO/OPA 3.3 , NEMO Consortium (2010)
7   !! $Id$
8   !! Software governed by the CeCILL licence (NEMOGCM/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      LOGICAL, INTENT (in) ::   ld_print   ! If true, print arrays in numout
29      !
30      INTEGER ::   ji, jj   ! dummy loop indices
31# if defined key_orca_r4
32      INTEGER :: i1, i2, j1, j2
33# endif
34      REAL(wp) ::   za00, zd_max, zeumax, zevmax, zetmax
35      !!----------------------------------------------------------------------
36
37      IF( lk_traldf_eiv ) THEN
38         IF(lwp) WRITE(numout,*)
39         IF(lwp) WRITE(numout,*) ' ldf_tra_c2d : 2D eddy diffusivity and eddy'
40         IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~   --  induced velocity coefficients'
41      ELSE
42         IF(lwp) WRITE(numout,*)
43         IF(lwp) WRITE(numout,*) ' ldf_tra2d : 2D eddy diffusivity coefficient'
44         IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~   --'
45      ENDIF
46
47      zd_max = MAX( MAXVAL( e1t(:,:) ), MAXVAL( e2t(:,:) ) )
48      IF( lk_mpp ) CALL mpp_max( zd_max )   ! max over the global domain
49
50      ! harmonic operator : (U-, V-, W-points)
51      ! ==================
52      IF( ln_traldf_lap ) THEN
53         !
54         za00 = aht0 / zd_max
55         !
56         DO jj = 1, jpj
57            DO ji = 1, jpi
58               zeumax = MAX( e1u(ji,jj), e2u(ji,jj) )
59               zevmax = MAX( e1v(ji,jj), e2v(ji,jj) )
60               zetmax = MAX( e1t(ji,jj), e2t(ji,jj) )
61               ahtu(ji,jj) = za00 * zeumax ! set ahtu = ahtv at u- and v-points,
62               ahtv(ji,jj) = za00 * zevmax ! and ahtw at w-point (idem T-point)
63               ahtw(ji,jj) = za00 * zetmax !
64            END DO
65         END DO
66
67         CALL lbc_lnk( ahtu, 'U', 1. )   ! Lateral boundary conditions
68         CALL lbc_lnk( ahtv, 'V', 1. )   ! (no change of sign)
69         CALL lbc_lnk( ahtw, 'W', 1. )
70
71         ! Special case for ORCA R2 and R4 configurations (overwrite the value of ahtu ahtv ahtw)
72         ! ==============================================
73         IF( cp_cfg == "orca" .AND. ( jp_cfg == 2 .OR. jp_cfg == 4 ) )   THEN
74            ahtu(:,:) = aht0              ! set ahtu = ahtv at u- and v-points,
75            ahtv(:,:) = aht0              ! and ahtw at w-point
76            ahtw(:,:) = aht0              ! (here : no space variation)
77            IF(lwp) WRITE(numout,*) '               ORCA R2 or R4 case'
78            IF(lwp) WRITE(numout,*) '               Constant values used for eddy diffusivity coefficients'
79            IF(lwp) WRITE(numout,*) '               Variation lat/lon only for eddy induced velocity coefficients'
80         ENDIF
81
82         ! Control print
83         IF( lwp .AND. ld_print ) THEN
84            WRITE(numout,*)
85            WRITE(numout,*) 'inildf: ahtu array'
86            CALL prihre( ahtu, jpi, jpj, 1, jpi, 1,   &
87               &                         1, jpj, 1, 1.e-3, numout )
88            WRITE(numout,*)
89            WRITE(numout,*) 'inildf: ahtv array'
90            CALL prihre( ahtv, jpi, jpj, 1, jpi, 1,   &
91               &                         1, jpj, 1, 1.e-3, numout )
92            WRITE(numout,*)
93            WRITE(numout,*) 'inildf: ahtw array'
94            CALL prihre( ahtw, jpi, jpj, 1, jpi, 1,   &
95               &                         1, jpj, 1, 1.e-3, numout )
96         ENDIF
97      ENDIF
98     
99      ! biharmonic operator : (T-point)
100      ! ====================
101      IF( ln_traldf_bilap ) THEN
102         ! (USER: modify ahtt following your desiderata)
103         ! Here: ahm is proportional to the cube of the maximum of the gridspacing
104         !       in the to horizontal direction
105
106         zd_max = MAX( MAXVAL( e1t(:,:) ), MAXVAL( e2t(:,:) ) )
107         IF( lk_mpp )   CALL mpp_max( zd_max )   ! max over the global domain
108
109         za00 = aht0 / ( zd_max * zd_max * zd_max )
110         DO jj = 1, jpj
111            DO ji = 1, jpi
112               zetmax = MAX( e1t(ji,jj), e2t(ji,jj) )
113               ahtt(ji,jj) = za00 * zetmax * zetmax * zetmax      ! set ahtt at T-point
114            END DO
115         END DO
116
117         CALL lbc_lnk( ahtt, 'T', 1. )   ! Lateral boundary conditions on ( ahtt )
118
119         ! Control print
120         IF( lwp .AND. ld_print ) THEN
121            WRITE(numout,*)
122            WRITE(numout,*) 'inildf: 2D ahtt array'
123            CALL prihre( ahtt, jpi, jpj, 1, jpi, 1,   &
124               &                         1, jpj, 1, 1.e-3, numout )
125         ENDIF
126      ENDIF
127
128# if defined key_traldf_eiv
129      ! set aeiu = aeiv at u- and v-points, and aeiw at w-point (idem T-point)
130      ! (here no space variation)
131      aeiu(:,:) = aeiv0
132      aeiv(:,:) = aeiv0
133      aeiw(:,:) = aeiv0
134     
135      IF( cp_cfg == "orca" .AND. jp_cfg == 4 ) THEN
136         !                                 ! Cancel eiv in Gibraltar strait
137         aeiu( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0
138         aeiv( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0
139         aeiw( mi0(68):mi1(71) , mj0(50):mj1(53) ) = 0.e0
140         !                                 ! Cancel eiv in Mediterrannean sea
141         aeiu( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0
142         aeiv( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0
143         aeiw( mi0(70):mi1(90) , mj0(49):mj1(56) ) = 0.e0
144      ENDIF
145
146      ! Lateral boundary conditions on ( aeiu, aeiv, aeiw )
147      CALL lbc_lnk( aeiu, 'U', 1. )
148      CALL lbc_lnk( aeiv, 'V', 1. )
149      CALL lbc_lnk( aeiw, 'W', 1. )
150
151      ! Control print
152      IF( lwp .AND. ld_print ) THEN
153         WRITE(numout,*)
154         WRITE(numout,*) 'inildf: aeiu array'
155         CALL prihre(aeiu,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout)
156         WRITE(numout,*)
157         WRITE(numout,*) 'inildf: aeiv array'
158         CALL prihre(aeiv,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout)
159         WRITE(numout,*)
160         WRITE(numout,*) 'inildf: aeiw array'
161         CALL prihre(aeiw,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout)
162      ENDIF
163# endif
164      !
165   END SUBROUTINE ldf_tra_c2d
Note: See TracBrowser for help on using the repository browser.