1 | MODULE dynkeg_tam |
---|
2 | #ifdef key_tam |
---|
3 | !!=========================================================================== |
---|
4 | !! *** MODULE dynkeg_tam *** |
---|
5 | !! Ocean dynamics: kinetic energy gradient trend |
---|
6 | !!====================================================================== |
---|
7 | !! History of the direct module: |
---|
8 | !! 1.0 ! 87-09 (P. Andrich, m.-a. Foujols) Original code |
---|
9 | !! 7.0 ! 97-05 (G. Madec) Split dynber into dynkeg and dynhpg |
---|
10 | !! 9.0 ! 02-07 (G. Madec) F90: Free form and module |
---|
11 | !! History of the TAM module: |
---|
12 | !! 9.0 ! 08-08 (A. Vidard) first version |
---|
13 | !!---------------------------------------------------------------------- |
---|
14 | !!---------------------------------------------------------------------- |
---|
15 | !! dyn_keg_tan : update the momentum trend with the horizontal tke |
---|
16 | !! dyn_keg_adj : update the momentum trend with the horizontal tke |
---|
17 | !!---------------------------------------------------------------------- |
---|
18 | USE par_kind, ONLY: & ! Precision variables |
---|
19 | & wp |
---|
20 | USE par_oce, ONLY: & ! Ocean space and time domain variables |
---|
21 | & jpi, & |
---|
22 | & jpj, & |
---|
23 | & jpk, & |
---|
24 | & jpim1, & |
---|
25 | & jpjm1, & |
---|
26 | & jpkm1 |
---|
27 | USE oce , ONLY: & ! ocean dynamics and tracers |
---|
28 | & un, & |
---|
29 | & vn |
---|
30 | USE dom_oce , ONLY: & ! ocean space and time domain |
---|
31 | & e1u, & |
---|
32 | & e2v |
---|
33 | USE in_out_manager, ONLY: & ! I/O manager |
---|
34 | & numout, & |
---|
35 | & nit000, & |
---|
36 | & nitend, & |
---|
37 | & lwp |
---|
38 | USE oce_tam , ONLY: & ! tam ocean dynamics and tracers |
---|
39 | & un_tl, & |
---|
40 | & vn_tl, & |
---|
41 | & ua_tl, & |
---|
42 | & va_tl, & |
---|
43 | & un_ad, & |
---|
44 | & vn_ad, & |
---|
45 | & ua_ad, & |
---|
46 | & va_ad |
---|
47 | IMPLICIT NONE |
---|
48 | PRIVATE |
---|
49 | |
---|
50 | PUBLIC dyn_keg_tan ! routine called by step_tam module |
---|
51 | PUBLIC dyn_keg_adj ! routine called by step_tam module |
---|
52 | |
---|
53 | !! * Substitutions |
---|
54 | # include "vectopt_loop_substitute.h90" |
---|
55 | |
---|
56 | CONTAINS |
---|
57 | |
---|
58 | SUBROUTINE dyn_keg_tan( kt ) |
---|
59 | !!---------------------------------------------------------------------- |
---|
60 | !! *** ROUTINE dyn_keg_tan *** |
---|
61 | !! |
---|
62 | !! ** Purpose of the direct routine: |
---|
63 | !! Compute the now momentum trend due to the horizontal |
---|
64 | !! gradient of the horizontal kinetic energy and add it to the |
---|
65 | !! general momentum trend. |
---|
66 | !! |
---|
67 | !! ** Method of the direct routine: |
---|
68 | !! Compute the now horizontal kinetic energy |
---|
69 | !! zhke = 1/2 [ mi-1( un^2 ) + mj-1( vn^2 ) ] |
---|
70 | !! Take its horizontal gradient and add it to the general momentum |
---|
71 | !! trend (ua,va). |
---|
72 | !! ua = ua - 1/e1u di[ zhke ] |
---|
73 | !! va = va - 1/e2v dj[ zhke ] |
---|
74 | !! |
---|
75 | !! ** Action : - Update the (ua_tl, va_tl) with the hor. ke gradient trend |
---|
76 | !!---------------------------------------------------------------------- |
---|
77 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
---|
78 | !! |
---|
79 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
80 | REAL(wp) :: zutl, zvtl ! temporary scalars |
---|
81 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zhketl ! temporary 3D workspace |
---|
82 | !!---------------------------------------------------------------------- |
---|
83 | IF( kt == nit000 ) THEN |
---|
84 | IF(lwp) WRITE(numout,*) |
---|
85 | IF(lwp) WRITE(numout,*) 'dyn_keg_tan : kinetic energy gradient trend' |
---|
86 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~' |
---|
87 | ENDIF |
---|
88 | ! ! =============== |
---|
89 | DO jk = 1, jpkm1 ! Horizontal slab |
---|
90 | ! ! =============== |
---|
91 | DO jj = 2, jpj ! Horizontal kinetic energy at T-point |
---|
92 | DO ji = fs_2, jpi ! vector opt. |
---|
93 | zutl = 0.5_wp * ( un_tl(ji-1,jj ,jk) * un( ji-1,jj ,jk) & |
---|
94 | & + un_tl(ji ,jj ,jk) * un( ji ,jj ,jk) ) |
---|
95 | zvtl = 0.5_wp * ( vn_tl(ji ,jj-1,jk) * vn( ji ,jj-1,jk) & |
---|
96 | & + vn( ji ,jj ,jk) * vn_tl(ji ,jj ,jk) ) |
---|
97 | zhketl(ji,jj,jk) = zvtl + zutl |
---|
98 | END DO |
---|
99 | END DO |
---|
100 | DO jj = 2, jpjm1 ! add the gradient of kinetic energy to the general momentum trends |
---|
101 | DO ji = fs_2, fs_jpim1 ! vector opt. |
---|
102 | ua_tl(ji,jj,jk) = ua_tl(ji,jj,jk) - ( zhketl(ji+1,jj ,jk) - zhketl(ji,jj,jk) ) / e1u(ji,jj) |
---|
103 | va_tl(ji,jj,jk) = va_tl(ji,jj,jk) - ( zhketl(ji ,jj+1,jk) - zhketl(ji,jj,jk) ) / e2v(ji,jj) |
---|
104 | END DO |
---|
105 | END DO |
---|
106 | ! ! =============== |
---|
107 | END DO ! End of slab |
---|
108 | ! ! =============== |
---|
109 | |
---|
110 | END SUBROUTINE dyn_keg_tan |
---|
111 | |
---|
112 | SUBROUTINE dyn_keg_adj( kt ) |
---|
113 | !!---------------------------------------------------------------------- |
---|
114 | !! *** ROUTINE dyn_keg_adj *** |
---|
115 | !! |
---|
116 | !! ** Purpose of the direct routine: |
---|
117 | !! Compute the now momentum trend due to the horizontal |
---|
118 | !! gradient of the horizontal kinetic energy and add it to the |
---|
119 | !! general momentum trend. |
---|
120 | !! |
---|
121 | !! ** Method of the direct routine: |
---|
122 | !! Compute the now horizontal kinetic energy |
---|
123 | !! zhke = 1/2 [ mi-1( un^2 ) + mj-1( vn^2 ) ] |
---|
124 | !! Take its horizontal gradient and add it to the general momentum |
---|
125 | !! trend (ua,va). |
---|
126 | !! ua = ua - 1/e1u di[ zhke ] |
---|
127 | !! va = va - 1/e2v dj[ zhke ] |
---|
128 | !! |
---|
129 | !! ** Action : - Update the (ua_ad, va_ad) with the hor. ke gradient trend |
---|
130 | !!---------------------------------------------------------------------- |
---|
131 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
---|
132 | !! |
---|
133 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
134 | REAL(wp) :: zuad, zvad ! temporary scalars |
---|
135 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zhkead ! temporary 3D workspace |
---|
136 | !!---------------------------------------------------------------------- |
---|
137 | IF( kt == nitend ) THEN |
---|
138 | IF(lwp) WRITE(numout,*) |
---|
139 | IF(lwp) WRITE(numout,*) 'dyn_keg_adj : kinetic energy gradient trend' |
---|
140 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~' |
---|
141 | ENDIF |
---|
142 | zhkead(:,:,:) = 0.0_wp ; zuad = 0.0_wp ; zvad = 0.0_wp |
---|
143 | ! ! =============== |
---|
144 | DO jk = jpkm1, 1, -1 ! Horizontal slab |
---|
145 | ! ! =============== |
---|
146 | DO jj = jpjm1, 2, -1 ! add the gradient of kinetic energy to the general momentum trends |
---|
147 | DO ji = fs_jpim1, fs_2, -1 ! vector opt. |
---|
148 | zhkead(ji ,jj+1,jk) = zhkead(ji ,jj+1,jk) & |
---|
149 | & - va_ad(ji ,jj ,jk) / e2v(ji,jj) |
---|
150 | zhkead(ji ,jj ,jk) = zhkead(ji ,jj ,jk) & |
---|
151 | & + va_ad(ji ,jj ,jk) / e2v(ji,jj) |
---|
152 | zhkead(ji+1,jj ,jk) = zhkead(ji+1,jj ,jk) & |
---|
153 | & - ua_ad(ji ,jj ,jk) / e1u(ji,jj) |
---|
154 | zhkead(ji ,jj ,jk) = zhkead(ji ,jj ,jk) & |
---|
155 | & + ua_ad(ji ,jj ,jk) / e1u(ji,jj) |
---|
156 | END DO |
---|
157 | END DO |
---|
158 | DO jj = jpj, 2, -1 ! Horizontal kinetic energy at T-point |
---|
159 | DO ji = jpi, fs_2, -1 ! vector opt. |
---|
160 | zuad = zhkead(ji,jj,jk) |
---|
161 | zvad = zhkead(ji,jj,jk) |
---|
162 | zhkead(ji,jj,jk) = 0.0_wp |
---|
163 | |
---|
164 | vn_ad(ji ,jj-1,jk) = vn_ad(ji ,jj-1,jk) + zvad * vn(ji ,jj-1,jk) * 0.5_wp |
---|
165 | vn_ad(ji ,jj ,jk) = vn_ad(ji ,jj ,jk) + zvad * vn(ji ,jj ,jk) * 0.5_wp |
---|
166 | un_ad(ji-1,jj ,jk) = un_ad(ji-1,jj ,jk) + zuad * un(ji-1,jj ,jk) * 0.5_wp |
---|
167 | un_ad(ji ,jj ,jk) = un_ad(ji ,jj ,jk) + zuad * un(ji ,jj ,jk) * 0.5_wp |
---|
168 | END DO |
---|
169 | END DO |
---|
170 | ! ! =============== |
---|
171 | END DO ! End of slab |
---|
172 | ! ! =============== |
---|
173 | |
---|
174 | END SUBROUTINE dyn_keg_adj |
---|
175 | SUBROUTINE dyn_keg_adj_tst( kumadt ) |
---|
176 | INTEGER, INTENT(IN) :: & |
---|
177 | & kumadt ! Output unit |
---|
178 | ! done in dynadv_tam |
---|
179 | END SUBROUTINE dyn_keg_adj_tst |
---|
180 | #endif |
---|
181 | END MODULE dynkeg_tam |
---|