1 | !!---------------------------------------------------------------------- |
---|
2 | !! *** ldfdyn_c2d.h90 *** |
---|
3 | !!---------------------------------------------------------------------- |
---|
4 | !! ldf_dyn_c2d : set the lateral viscosity coefficients |
---|
5 | !! ldf_dyn_c2d_orca : specific case for orca r2 and r4 |
---|
6 | !!---------------------------------------------------------------------- |
---|
7 | |
---|
8 | !!---------------------------------------------------------------------- |
---|
9 | !! OPA 9.0 , LODYC-IPSL (2003) |
---|
10 | !!---------------------------------------------------------------------- |
---|
11 | |
---|
12 | SUBROUTINE ldf_dyn_c2d( ld_print ) |
---|
13 | !!---------------------------------------------------------------------- |
---|
14 | !! *** ROUTINE ldf_dyn_c2d *** |
---|
15 | !! |
---|
16 | !! ** Purpose : initializations of the horizontal ocean physics |
---|
17 | !! |
---|
18 | !! ** Method : |
---|
19 | !! 2D eddy viscosity coefficients ( longitude, latitude ) |
---|
20 | !! |
---|
21 | !! harmonic operator : ahm1 is defined at t-point |
---|
22 | !! ahm2 is defined at f-point |
---|
23 | !! + isopycnal : ahm3 is defined at u-point |
---|
24 | !! or geopotential ahm4 is defined at v-point |
---|
25 | !! iso-model level : ahm3, ahm4 not used |
---|
26 | !! |
---|
27 | !! biharmonic operator : ahm1 is defined at u-point |
---|
28 | !! ahm2 is defined at v-point |
---|
29 | !! : ahm3, ahm4 not used |
---|
30 | !! |
---|
31 | !!---------------------------------------------------------------------- |
---|
32 | !! * Arguments |
---|
33 | LOGICAL, INTENT (in) :: ld_print ! If true, output arrays on numout |
---|
34 | |
---|
35 | !! * Local variables |
---|
36 | REAL(wp) :: za00, zdx_max |
---|
37 | !!---------------------------------------------------------------------- |
---|
38 | |
---|
39 | IF(lwp) WRITE(numout,*) |
---|
40 | IF(lwp) WRITE(numout,*) 'ldf_dyn_c2d : 2d lateral eddy viscosity coefficient' |
---|
41 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~' |
---|
42 | IF(lwp) WRITE(numout,*) |
---|
43 | |
---|
44 | ! harmonic operator (ahm1, ahm2) : ( T- and F- points) (used for laplacian operators |
---|
45 | ! =============================== whatever its orientation is) |
---|
46 | IF( ln_dynldf_lap ) THEN |
---|
47 | ! define ahm1 and ahm2 at the right grid point position |
---|
48 | ! (USER: modify ahm1 and ahm2 following your desiderata) |
---|
49 | |
---|
50 | zdx_max = MAXVAL( e1t(:,:) ) |
---|
51 | IF( lk_mpp ) CALL mpp_max( zdx_max ) ! max over the global domain |
---|
52 | |
---|
53 | IF(lwp) WRITE(numout,*) ' laplacian operator: ahm proportional to e1' |
---|
54 | IF(lwp) WRITE(numout,*) ' Caution, here we assume your mesh is isotropic ...' |
---|
55 | IF(lwp) WRITE(numout,*) ' maximum grid-spacing = ', zdx_max, ' maximum value for ahm = ', ahm0 |
---|
56 | |
---|
57 | za00 = ahm0 / zdx_max |
---|
58 | ahm1(:,:) = za00 * e1t(:,:) |
---|
59 | ahm2(:,:) = za00 * e1f(:,:) |
---|
60 | |
---|
61 | IF( ln_dynldf_iso ) THEN |
---|
62 | IF(lwp) WRITE(numout,*) ' Caution, as implemented now, the isopycnal part of momentum' |
---|
63 | IF(lwp) WRITE(numout,*) ' mixing use aht0 as eddy viscosity coefficient. Thus, it is' |
---|
64 | IF(lwp) WRITE(numout,*) ' uniform and you must be sure that your ahm is greater than' |
---|
65 | IF(lwp) WRITE(numout,*) ' aht0 everywhere in the model domain.' |
---|
66 | ENDIF |
---|
67 | |
---|
68 | ! Special case for ORCA R2 and R4 configurations (overwrite the value of ahm1 ahm2) |
---|
69 | ! ============================================== |
---|
70 | IF( cp_cfg == "orca" .AND. ( jp_cfg == 2 .OR. jp_cfg == 4 ) ) CALL ldf_dyn_c2d_orca( ld_print ) |
---|
71 | |
---|
72 | ! Control print |
---|
73 | IF( lwp .AND. ld_print ) THEN |
---|
74 | WRITE(numout,*) |
---|
75 | WRITE(numout,*) 'inildf: 2D ahm1 array' |
---|
76 | CALL prihre(ahm1,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
---|
77 | WRITE(numout,*) |
---|
78 | WRITE(numout,*) 'inildf: 2D ahm2 array' |
---|
79 | CALL prihre(ahm2,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
---|
80 | ENDIF |
---|
81 | ENDIF |
---|
82 | |
---|
83 | ! biharmonic operator (ahm3, ahm4) : at U- and V-points (used for bilaplacian operator |
---|
84 | ! ================================= whatever its orientation is) |
---|
85 | IF( ln_dynldf_bilap ) THEN |
---|
86 | ! (USER: modify ahm3 and ahm4 following your desiderata) |
---|
87 | ! Here: ahm is proportional to the cube of the maximum of the gridspacing |
---|
88 | ! in the to horizontal direction |
---|
89 | |
---|
90 | zdx_max = MAXVAL( e1u(:,:) ) |
---|
91 | IF( lk_mpp ) CALL mpp_max( zdx_max ) ! max over the global domain |
---|
92 | |
---|
93 | IF(lwp) WRITE(numout,*) ' bi-laplacian operator: ahm proportional to e1**3 ' |
---|
94 | IF(lwp) WRITE(numout,*) ' Caution, here we assume your mesh is isotropic ...' |
---|
95 | IF(lwp) WRITE(numout,*) ' maximum grid-spacing = ', zdx_max, ' maximum value for ahm = ', ahm0 |
---|
96 | |
---|
97 | za00 = ahm0 / ( zdx_max * zdx_max * zdx_max ) |
---|
98 | ahm3(:,:) = za00 * e1u(:,:) * e1u(:,:) * e1u(:,:) |
---|
99 | ahm4(:,:) = za00 * e1v(:,:) * e1v(:,:) * e1v(:,:) |
---|
100 | |
---|
101 | ! Control print |
---|
102 | IF( lwp .AND. ld_print ) THEN |
---|
103 | WRITE(numout,*) |
---|
104 | WRITE(numout,*) 'inildf: ahm3 array' |
---|
105 | CALL prihre(ahm3,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
---|
106 | WRITE(numout,*) |
---|
107 | WRITE(numout,*) 'inildf: ahm4 array' |
---|
108 | CALL prihre(ahm4,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
---|
109 | ENDIF |
---|
110 | ENDIF |
---|
111 | |
---|
112 | |
---|
113 | END SUBROUTINE ldf_dyn_c2d |
---|
114 | |
---|
115 | |
---|
116 | SUBROUTINE ldf_dyn_c2d_orca( ld_print ) |
---|
117 | !!---------------------------------------------------------------------- |
---|
118 | !! *** ROUTINE ldf_dyn_c2d *** |
---|
119 | !! |
---|
120 | !! **** W A R N I N G **** |
---|
121 | !! |
---|
122 | !! ORCA R2 and R4 configurations |
---|
123 | !! |
---|
124 | !! **** W A R N I N G **** |
---|
125 | !! |
---|
126 | !! ** Purpose : initializations of the lateral viscosity for orca R2 |
---|
127 | !! |
---|
128 | !! ** Method : blah blah blah... |
---|
129 | !! |
---|
130 | !!---------------------------------------------------------------------- |
---|
131 | !! * Modules used |
---|
132 | USE ldftra_oce, ONLY : aht0 |
---|
133 | |
---|
134 | !! * Arguments |
---|
135 | LOGICAL, INTENT (in) :: ld_print ! If true, output arrays on numout |
---|
136 | |
---|
137 | !! * Local variables |
---|
138 | INTEGER :: ji, jj, jn ! dummy loop indices |
---|
139 | INTEGER :: inum = 11 ! temporary logical unit |
---|
140 | INTEGER :: iost, iim, ijm |
---|
141 | INTEGER :: ifreq, il1, il2, ij, ii |
---|
142 | INTEGER, DIMENSION(jpidta,jpidta) :: idata |
---|
143 | INTEGER, DIMENSION(jpi ,jpj ) :: icof |
---|
144 | |
---|
145 | REAL(wp) :: zahmeq, zcoft, zcoff, zmsk |
---|
146 | |
---|
147 | CHARACTER (len=15) :: clexp |
---|
148 | !!---------------------------------------------------------------------- |
---|
149 | |
---|
150 | IF(lwp) WRITE(numout,*) |
---|
151 | IF(lwp) WRITE(numout,*) 'inildf: 2d eddy viscosity coefficient' |
---|
152 | IF(lwp) WRITE(numout,*) '~~~~~~ --' |
---|
153 | IF(lwp) WRITE(numout,*) |
---|
154 | IF(lwp) WRITE(numout,*) ' orca ocean model' |
---|
155 | IF(lwp) WRITE(numout,*) |
---|
156 | |
---|
157 | #if defined key_antarctic |
---|
158 | # include "ldfdyn_antarctic.h90" |
---|
159 | #elif defined key_arctic |
---|
160 | # include "ldfdyn_arctic.h90" |
---|
161 | #else |
---|
162 | ! Read 2d integer array to specify western boundary increase in the |
---|
163 | ! ===================== equatorial strip (20N-20S) defined at t-points |
---|
164 | |
---|
165 | OPEN( UNIT=inum, FILE='ahmcoef', STATUS='OLD', & |
---|
166 | & FORM='FORMATTED', ACCESS='SEQUENTIAL', ERR=111 , & |
---|
167 | & IOSTAT= iost ) |
---|
168 | IF( iost == 0 ) THEN |
---|
169 | IF(lwp) WRITE(numout,*) ' file : ahmcoef open ok' |
---|
170 | IF(lwp) WRITE(numout,*) ' unit = ', inum |
---|
171 | IF(lwp) WRITE(numout,*) ' status = OLD' |
---|
172 | IF(lwp) WRITE(numout,*) ' form = FORMATTED' |
---|
173 | IF(lwp) WRITE(numout,*) ' access = SEQUENTIAL' |
---|
174 | IF(lwp) WRITE(numout,*) |
---|
175 | ENDIF |
---|
176 | 111 CONTINUE |
---|
177 | IF( iost /= 0 ) THEN |
---|
178 | IF(lwp) WRITE(numout,*) |
---|
179 | IF(lwp) WRITE(numout,*) ' ===>>>> : bad opening file: ahmcoef' |
---|
180 | IF(lwp) WRITE(numout,*) ' ======= === ' |
---|
181 | IF(lwp) WRITE(numout,*) ' we stop. verify the file ' |
---|
182 | IF(lwp) WRITE(numout,*) |
---|
183 | STOP 'ldfdyn_c2d.h90' |
---|
184 | ENDIF |
---|
185 | |
---|
186 | REWIND inum |
---|
187 | READ(inum,9101) clexp, iim, ijm |
---|
188 | READ(inum,'(/)') |
---|
189 | ifreq = 40 |
---|
190 | il1 = 1 |
---|
191 | DO jn = 1, jpidta/ifreq+1 |
---|
192 | READ(inum,'(/)') |
---|
193 | il2 = MIN( jpidta, il1+ifreq-1 ) |
---|
194 | READ(inum,9201) ( ii, ji = il1, il2, 5 ) |
---|
195 | READ(inum,'(/)') |
---|
196 | DO jj = jpjdta, 1, -1 |
---|
197 | READ(inum,9202) ij, ( idata(ji,jj), ji = il1, il2 ) |
---|
198 | END DO |
---|
199 | il1 = il1 + ifreq |
---|
200 | END DO |
---|
201 | |
---|
202 | DO jj = 1, nlcj |
---|
203 | DO ji = 1, nlci |
---|
204 | icof(ji,jj) = idata( mig(ji), mjg(jj) ) |
---|
205 | END DO |
---|
206 | END DO |
---|
207 | DO jj = nlcj+1, jpj |
---|
208 | DO ji = 1, nlci |
---|
209 | icof(ji,jj) = icof(ji,nlcj) |
---|
210 | END DO |
---|
211 | END DO |
---|
212 | DO jj = 1, jpj |
---|
213 | DO ji = nlci+1, jpi |
---|
214 | icof(ji,jj) = icof(nlci,jj) |
---|
215 | END DO |
---|
216 | END DO |
---|
217 | |
---|
218 | 9101 FORMAT(1x,a15,2i8) |
---|
219 | 9201 FORMAT(3x,13(i3,12x)) |
---|
220 | 9202 FORMAT(i3,41i3) |
---|
221 | |
---|
222 | |
---|
223 | ! Set ahm1 and ahm2 ( T- and F- points) (used for laplacian operator) |
---|
224 | ! ================= |
---|
225 | ! define ahm1 and ahm2 at the right grid point position |
---|
226 | ! (USER: modify ahm1 and ahm2 following your desiderata) |
---|
227 | |
---|
228 | |
---|
229 | ! Decrease ahm to zahmeq m2/s in the tropics |
---|
230 | ! (from 90 to 20 degre: ahm = constant |
---|
231 | ! from 20 to 2.5 degre: ahm = decrease in (1-cos)/2 |
---|
232 | ! from 2.5 to 0 degre: ahm = constant |
---|
233 | ! symmetric in the south hemisphere) |
---|
234 | |
---|
235 | zahmeq = aht0 |
---|
236 | |
---|
237 | DO jj = 1, jpj |
---|
238 | DO ji = 1, jpi |
---|
239 | IF( ABS( gphif(ji,jj) ) >= 20. ) THEN |
---|
240 | ahm2(ji,jj) = ahm0 |
---|
241 | ELSEIF( ABS( gphif(ji,jj) ) <= 2.5 ) THEN |
---|
242 | ahm2(ji,jj) = zahmeq |
---|
243 | ELSE |
---|
244 | ahm2(ji,jj) = zahmeq + (ahm0-zahmeq)/2. & |
---|
245 | * ( 1. - COS( rad * ( ABS(gphif(ji,jj))-2.5 ) * 180. / 17.5 ) ) |
---|
246 | ENDIF |
---|
247 | IF( ABS( gphit(ji,jj) ) >= 20. ) THEN |
---|
248 | ahm1(ji,jj) = ahm0 |
---|
249 | ELSEIF( ABS( gphit(ji,jj) ) <= 2.5 ) THEN |
---|
250 | ahm1(ji,jj) = zahmeq |
---|
251 | ELSE |
---|
252 | ahm1(ji,jj) = zahmeq + (ahm0-zahmeq)/2. & |
---|
253 | * ( 1. - COS( rad * ( ABS(gphit(ji,jj))-2.5 ) * 180. / 17.5 ) ) |
---|
254 | ENDIF |
---|
255 | END DO |
---|
256 | END DO |
---|
257 | |
---|
258 | ! increase along western boundaries of equatorial strip |
---|
259 | ! t-point |
---|
260 | DO jj = 1, jpjm1 |
---|
261 | DO ji = 1, jpim1 |
---|
262 | zcoft = FLOAT( icof(ji,jj) ) / 100. |
---|
263 | ahm1(ji,jj) = zcoft * ahm0 + (1.-zcoft) * ahm1(ji,jj) |
---|
264 | END DO |
---|
265 | END DO |
---|
266 | ! f-point |
---|
267 | icof(:,:) = icof(:,:) * tmask(:,:,1) |
---|
268 | DO jj = 1, jpjm1 |
---|
269 | DO ji = 1, jpim1 |
---|
270 | zmsk = tmask(ji,jj+1,1) + tmask(ji+1,jj+1,1) + tmask(ji,jj,1) + tmask(ji,jj+1,1) |
---|
271 | IF( zmsk == 0. ) THEN |
---|
272 | zcoff = 1. |
---|
273 | ELSE |
---|
274 | zcoff = FLOAT( icof(ji,jj+1) + icof(ji+1,jj+1) + icof(ji,jj) + icof(ji,jj+1) ) & |
---|
275 | / (zmsk * 100.) |
---|
276 | ENDIF |
---|
277 | ahm2(ji,jj) = zcoff * ahm0 + (1.-zcoff) * ahm2(ji,jj) |
---|
278 | END DO |
---|
279 | END DO |
---|
280 | #endif |
---|
281 | |
---|
282 | ! Lateral boundary conditions on ( ahm1, ahm2 ) |
---|
283 | ! ============== |
---|
284 | CALL lbc_lnk( ahm1, 'T', 1. ) ! T-point, unchanged sign |
---|
285 | CALL lbc_lnk( ahm2, 'F', 1. ) ! F-point, unchanged sign |
---|
286 | |
---|
287 | ! Control print |
---|
288 | IF( lwp .AND. ld_print ) THEN |
---|
289 | WRITE(numout,*) |
---|
290 | WRITE(numout,*) 'inildf: 2D ahm1 array' |
---|
291 | CALL prihre(ahm1,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
---|
292 | WRITE(numout,*) |
---|
293 | WRITE(numout,*) 'inildf: 2D ahm2 array' |
---|
294 | CALL prihre(ahm2,jpi,jpj,1,jpi,1,1,jpj,1,1.e-3,numout) |
---|
295 | ENDIF |
---|
296 | |
---|
297 | END SUBROUTINE ldf_dyn_c2d_orca |
---|