1 | MODULE domhgr |
---|
2 | !!============================================================================== |
---|
3 | !! *** MODULE domhgr *** |
---|
4 | !! Ocean initialization : domain initialization |
---|
5 | !!============================================================================== |
---|
6 | !! History : OPA ! 1988-03 (G. Madec) Original code |
---|
7 | !! 7.0 ! 1996-01 (G. Madec) terrain following coordinates |
---|
8 | !! 8.0 ! 1997-02 (G. Madec) print mesh informations |
---|
9 | !! 8.1 ! 1999-11 (M. Imbard) NetCDF format with IO-IPSL |
---|
10 | !! 8.2 ! 2000-08 (D. Ludicone) Reduced section at Bab el Mandeb |
---|
11 | !! - ! 2001-09 (M. Levy) eel config: grid in km, beta-plane |
---|
12 | !! NEMO 1.0 ! 2002-08 (G. Madec) F90: Free form and module, namelist |
---|
13 | !! - ! 2004-01 (A.M. Treguier, J.M. Molines) Case 4 (Mercator mesh) |
---|
14 | !! use of parameters in par_CONFIG-Rxx.h90, not in namelist |
---|
15 | !! - ! 2004-05 (A. Koch-Larrouy) Add Gyre configuration |
---|
16 | !! 3.7 ! 2015-09 (G. Madec, S. Flavoni) add cell surface and their inverse |
---|
17 | !! add optional read of e1e2u & e1e2v |
---|
18 | !!---------------------------------------------------------------------- |
---|
19 | |
---|
20 | !!---------------------------------------------------------------------- |
---|
21 | !! dom_hgr : initialize the horizontal mesh |
---|
22 | !! hgr_read : read "coordinate" NetCDF file |
---|
23 | !!---------------------------------------------------------------------- |
---|
24 | USE dom_oce ! ocean space and time domain |
---|
25 | USE phycst ! physical constants |
---|
26 | USE domwri ! write 'meshmask.nc' & 'coordinate_e1e2u_v.nc' files |
---|
27 | ! |
---|
28 | USE in_out_manager ! I/O manager |
---|
29 | USE lib_mpp ! MPP library |
---|
30 | USE timing ! Timing |
---|
31 | |
---|
32 | IMPLICIT NONE |
---|
33 | PRIVATE |
---|
34 | |
---|
35 | REAL(wp) :: glam0, gphi0 ! variables corresponding to parameters ppglam0 ppgphi0 set in par_oce |
---|
36 | |
---|
37 | PUBLIC dom_hgr ! called by domain.F90 |
---|
38 | |
---|
39 | !!---------------------------------------------------------------------- |
---|
40 | !! NEMO/OPA 3.7 , NEMO Consortium (2014) |
---|
41 | !! $Id: domhgr.F90 6140 2015-12-21 11:35:23Z timgraham $ |
---|
42 | !! Software governed by the CeCILL licence (./LICENSE) |
---|
43 | !!---------------------------------------------------------------------- |
---|
44 | CONTAINS |
---|
45 | |
---|
46 | SUBROUTINE dom_hgr |
---|
47 | !!---------------------------------------------------------------------- |
---|
48 | !! *** ROUTINE dom_hgr *** |
---|
49 | !! |
---|
50 | !! ** Purpose : Compute the geographical position (in degre) of the |
---|
51 | !! model grid-points, the horizontal scale factors (in meters) and |
---|
52 | !! the Coriolis factor (in s-1). |
---|
53 | !! |
---|
54 | !! ** Method : The geographical position of the model grid-points is |
---|
55 | !! defined from analytical functions, fslam and fsphi, the deriva- |
---|
56 | !! tives of which gives the horizontal scale factors e1,e2. |
---|
57 | !! Defining two function fslam and fsphi and their derivatives in |
---|
58 | !! the two horizontal directions (fse1 and fse2), the model grid- |
---|
59 | !! point position and scale factors are given by: |
---|
60 | !! t-point: |
---|
61 | !! glamt(i,j) = fslam(i ,j ) e1t(i,j) = fse1(i ,j ) |
---|
62 | !! gphit(i,j) = fsphi(i ,j ) e2t(i,j) = fse2(i ,j ) |
---|
63 | !! u-point: |
---|
64 | !! glamu(i,j) = fslam(i+1/2,j ) e1u(i,j) = fse1(i+1/2,j ) |
---|
65 | !! gphiu(i,j) = fsphi(i+1/2,j ) e2u(i,j) = fse2(i+1/2,j ) |
---|
66 | !! v-point: |
---|
67 | !! glamv(i,j) = fslam(i ,j+1/2) e1v(i,j) = fse1(i ,j+1/2) |
---|
68 | !! gphiv(i,j) = fsphi(i ,j+1/2) e2v(i,j) = fse2(i ,j+1/2) |
---|
69 | !! f-point: |
---|
70 | !! glamf(i,j) = fslam(i+1/2,j+1/2) e1f(i,j) = fse1(i+1/2,j+1/2) |
---|
71 | !! gphif(i,j) = fsphi(i+1/2,j+1/2) e2f(i,j) = fse2(i+1/2,j+1/2) |
---|
72 | !! Where fse1 and fse2 are defined by: |
---|
73 | !! fse1(i,j) = ra * rad * SQRT( (cos(phi) di(fslam))**2 |
---|
74 | !! + di(fsphi) **2 )(i,j) |
---|
75 | !! fse2(i,j) = ra * rad * SQRT( (cos(phi) dj(fslam))**2 |
---|
76 | !! + dj(fsphi) **2 )(i,j) |
---|
77 | !! |
---|
78 | !! The coriolis factor is given at z-point by: |
---|
79 | !! ff = 2.*omega*sin(gphif) (in s-1) |
---|
80 | !! |
---|
81 | !! This routine is given as an example, it must be modified |
---|
82 | !! following the user s desiderata. nevertheless, the output as |
---|
83 | !! well as the way to compute the model grid-point position and |
---|
84 | !! horizontal scale factors must be respected in order to insure |
---|
85 | !! second order accuracy schemes. |
---|
86 | !! |
---|
87 | !! N.B. If the domain is periodic, verify that scale factors are also |
---|
88 | !! periodic, and the coriolis term again. |
---|
89 | !! |
---|
90 | !! ** Action : - define glamt, glamu, glamv, glamf: longitude of t-, |
---|
91 | !! u-, v- and f-points (in degre) |
---|
92 | !! - define gphit, gphiu, gphiv, gphit: latitude of t-, |
---|
93 | !! u-, v- and f-points (in degre) |
---|
94 | !! define e1t, e2t, e1u, e2u, e1v, e2v, e1f, e2f: horizontal |
---|
95 | !! scale factors (in meters) at t-, u-, v-, and f-points. |
---|
96 | !! define ff: coriolis factor at f-point |
---|
97 | !! |
---|
98 | !! References : Marti, Madec and Delecluse, 1992, JGR |
---|
99 | !! Madec, Imbard, 1996, Clim. Dyn. |
---|
100 | !!---------------------------------------------------------------------- |
---|
101 | INTEGER :: ji, jj ! dummy loop indices |
---|
102 | INTEGER :: ii0, ii1, ij0, ij1 ! temporary integers |
---|
103 | INTEGER :: ijeq ! index of equator T point (used in case 4) |
---|
104 | REAL(wp) :: zti, zui, zvi, zfi ! local scalars |
---|
105 | REAL(wp) :: ztj, zuj, zvj, zfj ! - - |
---|
106 | REAL(wp) :: zphi0, zbeta, znorme ! |
---|
107 | REAL(wp) :: zarg, zf0, zminff, zmaxff |
---|
108 | REAL(wp) :: zlam1, zcos_alpha, zim1 , zjm1 , ze1, ze1deg |
---|
109 | REAL(wp) :: zphi1, zsin_alpha, zim05, zjm05 |
---|
110 | INTEGER :: isrow ! index for ORCA1 starting row |
---|
111 | INTEGER :: ie1e2u_v ! fag for u- & v-surface read in coordinate file or not |
---|
112 | !!---------------------------------------------------------------------- |
---|
113 | ! |
---|
114 | IF( nn_timing == 1 ) CALL timing_start('dom_hgr') |
---|
115 | ! |
---|
116 | IF(lwp) THEN |
---|
117 | WRITE(numout,*) |
---|
118 | WRITE(numout,*) 'dom_hgr : define the horizontal mesh from ithe following par_oce parameters ' |
---|
119 | WRITE(numout,*) '~~~~~~~ type of horizontal mesh jphgr_msh = ', jphgr_msh |
---|
120 | WRITE(numout,*) ' position of the first row and ppglam0 = ', ppglam0 |
---|
121 | WRITE(numout,*) ' column grid-point (degrees) ppgphi0 = ', ppgphi0 |
---|
122 | WRITE(numout,*) ' zonal grid-spacing (degrees) ppe1_deg = ', ppe1_deg |
---|
123 | WRITE(numout,*) ' meridional grid-spacing (degrees) ppe2_deg = ', ppe2_deg |
---|
124 | WRITE(numout,*) ' zonal grid-spacing (meters) ppe1_m = ', ppe1_m |
---|
125 | WRITE(numout,*) ' meridional grid-spacing (meters) ppe2_m = ', ppe2_m |
---|
126 | ENDIF |
---|
127 | ! |
---|
128 | ! |
---|
129 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
---|
130 | ! |
---|
131 | CASE ( 0 ) !== read in coordinate.nc file ==! |
---|
132 | ! |
---|
133 | IF(lwp) WRITE(numout,*) |
---|
134 | IF(lwp) WRITE(numout,*) ' curvilinear coordinate on the sphere read in "coordinate" file' |
---|
135 | ! |
---|
136 | ie1e2u_v = 0 ! set to unread e1e2u and e1e2v |
---|
137 | ! |
---|
138 | CALL hgr_read( ie1e2u_v ) ! read the coordinate.nc file |
---|
139 | ! |
---|
140 | IF( ie1e2u_v == 0 ) THEN ! e1e2u and e1e2v have not been read: compute them |
---|
141 | ! ! e2u and e1v does not include a reduction in some strait: apply reduction |
---|
142 | e1e2u (:,:) = e1u(:,:) * e2u(:,:) |
---|
143 | e1e2v (:,:) = e1v(:,:) * e2v(:,:) |
---|
144 | ENDIF |
---|
145 | ! |
---|
146 | CASE ( 1 ) !== geographical mesh on the sphere with regular (in degree) grid-spacing ==! |
---|
147 | ! |
---|
148 | IF(lwp) WRITE(numout,*) |
---|
149 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere with regular grid-spacing' |
---|
150 | IF(lwp) WRITE(numout,*) ' given by ppe1_deg and ppe2_deg' |
---|
151 | ! |
---|
152 | DO jj = 1, jpj |
---|
153 | DO ji = 1, jpi |
---|
154 | zti = REAL( ji - 1 + nimpp - 1 ) ; ztj = REAL( jj - 1 + njmpp - 1 ) |
---|
155 | zui = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = REAL( jj - 1 + njmpp - 1 ) |
---|
156 | zvi = REAL( ji - 1 + nimpp - 1 ) ; zvj = REAL( jj - 1 + njmpp - 1 ) + 0.5 |
---|
157 | zfi = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = REAL( jj - 1 + njmpp - 1 ) + 0.5 |
---|
158 | ! Longitude |
---|
159 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
---|
160 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
---|
161 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
---|
162 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
---|
163 | ! Latitude |
---|
164 | gphit(ji,jj) = ppgphi0 + ppe2_deg * ztj |
---|
165 | gphiu(ji,jj) = ppgphi0 + ppe2_deg * zuj |
---|
166 | gphiv(ji,jj) = ppgphi0 + ppe2_deg * zvj |
---|
167 | gphif(ji,jj) = ppgphi0 + ppe2_deg * zfj |
---|
168 | ! e1 |
---|
169 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
---|
170 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
---|
171 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
---|
172 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
---|
173 | ! e2 |
---|
174 | e2t(ji,jj) = ra * rad * ppe2_deg |
---|
175 | e2u(ji,jj) = ra * rad * ppe2_deg |
---|
176 | e2v(ji,jj) = ra * rad * ppe2_deg |
---|
177 | e2f(ji,jj) = ra * rad * ppe2_deg |
---|
178 | END DO |
---|
179 | END DO |
---|
180 | ! |
---|
181 | CASE ( 2:3 ) !== f- or beta-plane with regular grid-spacing ==! |
---|
182 | ! |
---|
183 | IF(lwp) WRITE(numout,*) |
---|
184 | IF(lwp) WRITE(numout,*) ' f- or beta-plane with regular grid-spacing' |
---|
185 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
---|
186 | ! |
---|
187 | ! Position coordinates (in kilometers) |
---|
188 | ! ========== |
---|
189 | glam0 = 0._wp |
---|
190 | gphi0 = - ppe2_m * 1.e-3 |
---|
191 | ! |
---|
192 | DO jj = 1, jpj |
---|
193 | DO ji = 1, jpi |
---|
194 | glamt(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( REAL( ji - 1 + nimpp - 1 ) ) |
---|
195 | glamu(ji,jj) = glam0 + ppe1_m * 1.e-3 * ( REAL( ji - 1 + nimpp - 1 ) + 0.5 ) |
---|
196 | glamv(ji,jj) = glamt(ji,jj) |
---|
197 | glamf(ji,jj) = glamu(ji,jj) |
---|
198 | ! |
---|
199 | gphit(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( REAL( jj - 1 + njmpp - 1 ) ) |
---|
200 | gphiu(ji,jj) = gphit(ji,jj) |
---|
201 | gphiv(ji,jj) = gphi0 + ppe2_m * 1.e-3 * ( REAL( jj - 1 + njmpp - 1 ) + 0.5 ) |
---|
202 | gphif(ji,jj) = gphiv(ji,jj) |
---|
203 | END DO |
---|
204 | END DO |
---|
205 | ! |
---|
206 | ! Horizontal scale factors (in meters) |
---|
207 | ! ====== |
---|
208 | e1t(:,:) = ppe1_m ; e2t(:,:) = ppe2_m |
---|
209 | e1u(:,:) = ppe1_m ; e2u(:,:) = ppe2_m |
---|
210 | e1v(:,:) = ppe1_m ; e2v(:,:) = ppe2_m |
---|
211 | e1f(:,:) = ppe1_m ; e2f(:,:) = ppe2_m |
---|
212 | ! |
---|
213 | CASE ( 4 ) !== geographical mesh on the sphere, isotropic MERCATOR type ==! |
---|
214 | ! |
---|
215 | IF(lwp) WRITE(numout,*) |
---|
216 | IF(lwp) WRITE(numout,*) ' geographical mesh on the sphere, MERCATOR type' |
---|
217 | IF(lwp) WRITE(numout,*) ' longitudinal/latitudinal spacing given by ppe1_deg' |
---|
218 | IF ( ppgphi0 == -90 ) CALL ctl_stop( ' Mercator grid cannot start at south pole !!!! ' ) |
---|
219 | ! |
---|
220 | ! Find index corresponding to the equator, given the grid spacing e1_deg |
---|
221 | ! and the (approximate) southern latitude ppgphi0. |
---|
222 | ! This way we ensure that the equator is at a "T / U" point, when in the domain. |
---|
223 | ! The formula should work even if the equator is outside the domain. |
---|
224 | zarg = rpi / 4. - rpi / 180. * ppgphi0 / 2. |
---|
225 | ijeq = ABS( 180./rpi * LOG( COS( zarg ) / SIN( zarg ) ) / ppe1_deg ) |
---|
226 | IF( ppgphi0 > 0 ) ijeq = -ijeq |
---|
227 | ! |
---|
228 | IF(lwp) WRITE(numout,*) ' Index of the equator on the MERCATOR grid:', ijeq |
---|
229 | ! |
---|
230 | DO jj = 1, jpj |
---|
231 | DO ji = 1, jpi |
---|
232 | zti = REAL( ji - 1 + nimpp - 1 ) ; ztj = REAL( jj - ijeq + njmpp - 1 ) |
---|
233 | zui = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zuj = REAL( jj - ijeq + njmpp - 1 ) |
---|
234 | zvi = REAL( ji - 1 + nimpp - 1 ) ; zvj = REAL( jj - ijeq + njmpp - 1 ) + 0.5 |
---|
235 | zfi = REAL( ji - 1 + nimpp - 1 ) + 0.5 ; zfj = REAL( jj - ijeq + njmpp - 1 ) + 0.5 |
---|
236 | ! Longitude |
---|
237 | glamt(ji,jj) = ppglam0 + ppe1_deg * zti |
---|
238 | glamu(ji,jj) = ppglam0 + ppe1_deg * zui |
---|
239 | glamv(ji,jj) = ppglam0 + ppe1_deg * zvi |
---|
240 | glamf(ji,jj) = ppglam0 + ppe1_deg * zfi |
---|
241 | ! Latitude |
---|
242 | gphit(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* ztj ) ) |
---|
243 | gphiu(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zuj ) ) |
---|
244 | gphiv(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zvj ) ) |
---|
245 | gphif(ji,jj) = 1./rad * ASIN ( TANH( ppe1_deg *rad* zfj ) ) |
---|
246 | ! e1 |
---|
247 | e1t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
---|
248 | e1u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
---|
249 | e1v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
---|
250 | e1f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
---|
251 | ! e2 |
---|
252 | e2t(ji,jj) = ra * rad * COS( rad * gphit(ji,jj) ) * ppe1_deg |
---|
253 | e2u(ji,jj) = ra * rad * COS( rad * gphiu(ji,jj) ) * ppe1_deg |
---|
254 | e2v(ji,jj) = ra * rad * COS( rad * gphiv(ji,jj) ) * ppe1_deg |
---|
255 | e2f(ji,jj) = ra * rad * COS( rad * gphif(ji,jj) ) * ppe1_deg |
---|
256 | END DO |
---|
257 | END DO |
---|
258 | ! |
---|
259 | CASE ( 5 ) !== beta-plane with regular grid-spacing and rotated domain ==! (GYRE configuration) |
---|
260 | ! |
---|
261 | IF(lwp) WRITE(numout,*) |
---|
262 | IF(lwp) WRITE(numout,*) ' beta-plane with regular grid-spacing and rotated domain (GYRE configuration)' |
---|
263 | IF(lwp) WRITE(numout,*) ' given by ppe1_m and ppe2_m' |
---|
264 | ! |
---|
265 | ! Position coordinates (in kilometers) |
---|
266 | ! ========== |
---|
267 | ! |
---|
268 | ! angle 45deg and ze1=106.e+3 / jp_cfg forced -> zlam1 = -85deg, zphi1 = 29degN |
---|
269 | zlam1 = -85._wp |
---|
270 | zphi1 = 29._wp |
---|
271 | ! resolution in meters |
---|
272 | ze1 = 106000. / REAL( jp_cfg , wp ) |
---|
273 | ! benchmark: forced the resolution to be about 100 km |
---|
274 | IF( nbench /= 0 ) ze1 = 106000._wp |
---|
275 | zsin_alpha = - SQRT( 2._wp ) * 0.5_wp |
---|
276 | zcos_alpha = SQRT( 2._wp ) * 0.5_wp |
---|
277 | ze1deg = ze1 / (ra * rad) |
---|
278 | IF( nbench /= 0 ) ze1deg = ze1deg / REAL( jp_cfg , wp ) ! benchmark: keep the lat/+lon |
---|
279 | ! ! at the right jp_cfg resolution |
---|
280 | glam0 = zlam1 + zcos_alpha * ze1deg * REAL( jpjglo-2 , wp ) |
---|
281 | gphi0 = zphi1 + zsin_alpha * ze1deg * REAL( jpjglo-2 , wp ) |
---|
282 | ! |
---|
283 | IF( nprint==1 .AND. lwp ) THEN |
---|
284 | WRITE(numout,*) ' ze1', ze1, 'cosalpha', zcos_alpha, 'sinalpha', zsin_alpha |
---|
285 | WRITE(numout,*) ' ze1deg', ze1deg, 'glam0', glam0, 'gphi0', gphi0 |
---|
286 | ENDIF |
---|
287 | ! |
---|
288 | DO jj = 1, jpj |
---|
289 | DO ji = 1, jpi |
---|
290 | zim1 = REAL( ji + nimpp - 1 ) - 1. ; zim05 = REAL( ji + nimpp - 1 ) - 1.5 |
---|
291 | zjm1 = REAL( jj + njmpp - 1 ) - 1. ; zjm05 = REAL( jj + njmpp - 1 ) - 1.5 |
---|
292 | ! |
---|
293 | glamf(ji,jj) = glam0 + zim1 * ze1deg * zcos_alpha + zjm1 * ze1deg * zsin_alpha |
---|
294 | gphif(ji,jj) = gphi0 - zim1 * ze1deg * zsin_alpha + zjm1 * ze1deg * zcos_alpha |
---|
295 | ! |
---|
296 | glamt(ji,jj) = glam0 + zim05 * ze1deg * zcos_alpha + zjm05 * ze1deg * zsin_alpha |
---|
297 | gphit(ji,jj) = gphi0 - zim05 * ze1deg * zsin_alpha + zjm05 * ze1deg * zcos_alpha |
---|
298 | ! |
---|
299 | glamu(ji,jj) = glam0 + zim1 * ze1deg * zcos_alpha + zjm05 * ze1deg * zsin_alpha |
---|
300 | gphiu(ji,jj) = gphi0 - zim1 * ze1deg * zsin_alpha + zjm05 * ze1deg * zcos_alpha |
---|
301 | ! |
---|
302 | glamv(ji,jj) = glam0 + zim05 * ze1deg * zcos_alpha + zjm1 * ze1deg * zsin_alpha |
---|
303 | gphiv(ji,jj) = gphi0 - zim05 * ze1deg * zsin_alpha + zjm1 * ze1deg * zcos_alpha |
---|
304 | END DO |
---|
305 | END DO |
---|
306 | ! |
---|
307 | ! Horizontal scale factors (in meters) |
---|
308 | ! ====== |
---|
309 | e1t(:,:) = ze1 ; e2t(:,:) = ze1 |
---|
310 | e1u(:,:) = ze1 ; e2u(:,:) = ze1 |
---|
311 | e1v(:,:) = ze1 ; e2v(:,:) = ze1 |
---|
312 | e1f(:,:) = ze1 ; e2f(:,:) = ze1 |
---|
313 | ! |
---|
314 | CASE DEFAULT |
---|
315 | WRITE(ctmp1,*) ' bad flag value for jphgr_msh = ', jphgr_msh |
---|
316 | CALL ctl_stop( ctmp1 ) |
---|
317 | ! |
---|
318 | END SELECT |
---|
319 | |
---|
320 | ! associated horizontal metrics |
---|
321 | ! ----------------------------- |
---|
322 | ! |
---|
323 | r1_e1t(:,:) = 1._wp / e1t(:,:) ; r1_e2t (:,:) = 1._wp / e2t(:,:) |
---|
324 | r1_e1u(:,:) = 1._wp / e1u(:,:) ; r1_e2u (:,:) = 1._wp / e2u(:,:) |
---|
325 | r1_e1v(:,:) = 1._wp / e1v(:,:) ; r1_e2v (:,:) = 1._wp / e2v(:,:) |
---|
326 | r1_e1f(:,:) = 1._wp / e1f(:,:) ; r1_e2f (:,:) = 1._wp / e2f(:,:) |
---|
327 | ! |
---|
328 | e1e2t (:,:) = e1t(:,:) * e2t(:,:) ; r1_e1e2t(:,:) = 1._wp / e1e2t(:,:) |
---|
329 | e1e2f (:,:) = e1f(:,:) * e2f(:,:) ; r1_e1e2f(:,:) = 1._wp / e1e2f(:,:) |
---|
330 | IF( jphgr_msh /= 0 ) THEN ! e1e2u and e1e2v have not been set: compute them |
---|
331 | e1e2u (:,:) = e1u(:,:) * e2u(:,:) |
---|
332 | e1e2v (:,:) = e1v(:,:) * e2v(:,:) |
---|
333 | ENDIF |
---|
334 | r1_e1e2u(:,:) = 1._wp / e1e2u(:,:) ! compute their invert in both cases |
---|
335 | r1_e1e2v(:,:) = 1._wp / e1e2v(:,:) |
---|
336 | ! |
---|
337 | e2_e1u(:,:) = e2u(:,:) / e1u(:,:) |
---|
338 | e1_e2v(:,:) = e1v(:,:) / e2v(:,:) |
---|
339 | |
---|
340 | IF( lwp .AND. nn_print >=1 .AND. .NOT.ln_rstart ) THEN ! Control print : Grid informations (if not restart) |
---|
341 | WRITE(numout,*) |
---|
342 | WRITE(numout,*) ' longitude and e1 scale factors' |
---|
343 | WRITE(numout,*) ' ------------------------------' |
---|
344 | WRITE(numout,9300) ( ji, glamt(ji,1), glamu(ji,1), & |
---|
345 | glamv(ji,1), glamf(ji,1), & |
---|
346 | e1t(ji,1), e1u(ji,1), & |
---|
347 | e1v(ji,1), e1f(ji,1), ji = 1, jpi,10) |
---|
348 | 9300 FORMAT( 1x, i4, f8.2,1x, f8.2,1x, f8.2,1x, f8.2, 1x, & |
---|
349 | f19.10, 1x, f19.10, 1x, f19.10, 1x, f19.10 ) |
---|
350 | ! |
---|
351 | WRITE(numout,*) |
---|
352 | WRITE(numout,*) ' latitude and e2 scale factors' |
---|
353 | WRITE(numout,*) ' -----------------------------' |
---|
354 | WRITE(numout,9300) ( jj, gphit(1,jj), gphiu(1,jj), & |
---|
355 | & gphiv(1,jj), gphif(1,jj), & |
---|
356 | & e2t (1,jj), e2u (1,jj), & |
---|
357 | & e2v (1,jj), e2f (1,jj), jj = 1, jpj, 10 ) |
---|
358 | ENDIF |
---|
359 | |
---|
360 | |
---|
361 | ! ================= ! |
---|
362 | ! Coriolis factor ! |
---|
363 | ! ================= ! |
---|
364 | |
---|
365 | SELECT CASE( jphgr_msh ) ! type of horizontal mesh |
---|
366 | ! |
---|
367 | CASE ( 0, 1, 4 ) ! mesh on the sphere |
---|
368 | ! |
---|
369 | ff_f(:,:) = 2. * omega * SIN( rad * gphif(:,:) ) |
---|
370 | ff_t(:,:) = 2. * omega * SIN( rad * gphit(:,:) ) ! - - - at t-point |
---|
371 | ! |
---|
372 | CASE ( 2 ) ! f-plane at ppgphi0 |
---|
373 | ! |
---|
374 | ff_f(:,:) = 2. * omega * SIN( rad * ppgphi0 ) |
---|
375 | ff_t(:,:) = 2. * omega * SIN( rad * ppgphi0 ) |
---|
376 | ! |
---|
377 | IF(lwp) WRITE(numout,*) ' f-plane: Coriolis parameter = constant = ', ff_f(1,1) |
---|
378 | ! |
---|
379 | CASE ( 3 ) ! beta-plane |
---|
380 | ! |
---|
381 | zbeta = 2. * omega * COS( rad * ppgphi0 ) / ra ! beta at latitude ppgphi0 |
---|
382 | zphi0 = ppgphi0 - REAL( jpjglo/2) * ppe2_m / ( ra * rad ) ! latitude of the first row F-points |
---|
383 | ! |
---|
384 | zf0 = 2. * omega * SIN( rad * zphi0 ) ! compute f0 1st point south |
---|
385 | ! |
---|
386 | ff_f(:,:) = ( zf0 + zbeta * gphif(:,:) * 1.e+3 ) ! f = f0 +beta* y ( y=0 at south) |
---|
387 | ff_t(:,:) = ( zf0 + zbeta * gphit(:,:) * 1.e+3 ) ! f = f0 +beta* y ( y=0 at south) |
---|
388 | ! |
---|
389 | IF(lwp) THEN |
---|
390 | WRITE(numout,*) |
---|
391 | WRITE(numout,*) ' Beta-plane: Beta parameter = constant = ', ff_f(nldi,nldj) |
---|
392 | WRITE(numout,*) ' Coriolis parameter varies from ', ff_f(nldi,nldj),' to ', ff_f(nldi,nlej) |
---|
393 | ENDIF |
---|
394 | IF( lk_mpp ) THEN |
---|
395 | zminff=ff_f(nldi,nldj) |
---|
396 | zmaxff=ff_f(nldi,nlej) |
---|
397 | CALL mpp_min( zminff ) ! min over the global domain |
---|
398 | CALL mpp_max( zmaxff ) ! max over the global domain |
---|
399 | IF(lwp) WRITE(numout,*) ' Coriolis parameter varies globally from ', zminff,' to ', zmaxff |
---|
400 | END IF |
---|
401 | ! |
---|
402 | CASE ( 5 ) ! beta-plane and rotated domain (gyre configuration) |
---|
403 | ! |
---|
404 | zbeta = 2. * omega * COS( rad * ppgphi0 ) / ra ! beta at latitude ppgphi0 |
---|
405 | zphi0 = 15._wp ! latitude of the first row F-points |
---|
406 | zf0 = 2. * omega * SIN( rad * zphi0 ) ! compute f0 1st point south |
---|
407 | ! |
---|
408 | ff_f(:,:) = ( zf0 + zbeta * ABS( gphif(:,:) - zphi0 ) * rad * ra ) ! f = f0 +beta* y ( y=0 at south) |
---|
409 | ff_t(:,:) = ( zf0 + zbeta * ABS( gphit(:,:) - zphi0 ) * rad * ra ) ! f = f0 +beta* y ( y=0 at south) |
---|
410 | ! |
---|
411 | IF(lwp) THEN |
---|
412 | WRITE(numout,*) |
---|
413 | WRITE(numout,*) ' Beta-plane and rotated domain : ' |
---|
414 | WRITE(numout,*) ' Coriolis parameter varies in this processor from ', ff_f(nldi,nldj),' to ', ff_f(nldi,nlej) |
---|
415 | ENDIF |
---|
416 | ! |
---|
417 | IF( lk_mpp ) THEN |
---|
418 | zminff=ff_f(nldi,nldj) |
---|
419 | zmaxff=ff_f(nldi,nlej) |
---|
420 | CALL mpp_min( zminff ) ! min over the global domain |
---|
421 | CALL mpp_max( zmaxff ) ! max over the global domain |
---|
422 | IF(lwp) WRITE(numout,*) ' Coriolis parameter varies globally from ', zminff,' to ', zmaxff |
---|
423 | END IF |
---|
424 | ! |
---|
425 | END SELECT |
---|
426 | |
---|
427 | |
---|
428 | ! Control of domain for symetrical condition |
---|
429 | ! ------------------------------------------ |
---|
430 | ! The equator line must be the latitude coordinate axe |
---|
431 | |
---|
432 | IF( nperio == 2 ) THEN |
---|
433 | znorme = SQRT( SUM( gphiu(:,2) * gphiu(:,2) ) ) / REAL( jpi ) |
---|
434 | IF( znorme > 1.e-13 ) CALL ctl_stop( ' ===>>>> : symmetrical condition: rerun with good equator line' ) |
---|
435 | ENDIF |
---|
436 | ! |
---|
437 | IF( nn_timing == 1 ) CALL timing_stop('dom_hgr') |
---|
438 | ! |
---|
439 | END SUBROUTINE dom_hgr |
---|
440 | |
---|
441 | |
---|
442 | SUBROUTINE hgr_read( ke1e2u_v ) |
---|
443 | !!--------------------------------------------------------------------- |
---|
444 | !! *** ROUTINE hgr_read *** |
---|
445 | !! |
---|
446 | !! ** Purpose : Read a coordinate file in NetCDF format using IOM |
---|
447 | !! |
---|
448 | !!---------------------------------------------------------------------- |
---|
449 | USE iom |
---|
450 | !! |
---|
451 | INTEGER, INTENT( inout ) :: ke1e2u_v ! fag: e1e2u & e1e2v read in coordinate file (=1) or not (=0) |
---|
452 | ! |
---|
453 | INTEGER :: inum ! temporary logical unit |
---|
454 | !!---------------------------------------------------------------------- |
---|
455 | ! |
---|
456 | IF(lwp) THEN |
---|
457 | WRITE(numout,*) |
---|
458 | WRITE(numout,*) 'hgr_read : read the horizontal coordinates' |
---|
459 | WRITE(numout,*) '~~~~~~~~ jpiglo = ', jpiglo, ' jpjglo = ', jpjglo, ' jpk = ', jpk |
---|
460 | ENDIF |
---|
461 | ! |
---|
462 | CALL iom_open( 'coordinates', inum ) |
---|
463 | ! |
---|
464 | CALL iom_get( inum, jpdom_data, 'glamt', glamt, lrowattr=ln_use_jattr ) |
---|
465 | CALL iom_get( inum, jpdom_data, 'glamu', glamu, lrowattr=ln_use_jattr ) |
---|
466 | CALL iom_get( inum, jpdom_data, 'glamv', glamv, lrowattr=ln_use_jattr ) |
---|
467 | CALL iom_get( inum, jpdom_data, 'glamf', glamf, lrowattr=ln_use_jattr ) |
---|
468 | ! |
---|
469 | CALL iom_get( inum, jpdom_data, 'gphit', gphit, lrowattr=ln_use_jattr ) |
---|
470 | CALL iom_get( inum, jpdom_data, 'gphiu', gphiu, lrowattr=ln_use_jattr ) |
---|
471 | CALL iom_get( inum, jpdom_data, 'gphiv', gphiv, lrowattr=ln_use_jattr ) |
---|
472 | CALL iom_get( inum, jpdom_data, 'gphif', gphif, lrowattr=ln_use_jattr ) |
---|
473 | ! |
---|
474 | CALL iom_get( inum, jpdom_data, 'e1t' , e1t , lrowattr=ln_use_jattr ) |
---|
475 | CALL iom_get( inum, jpdom_data, 'e1u' , e1u , lrowattr=ln_use_jattr ) |
---|
476 | CALL iom_get( inum, jpdom_data, 'e1v' , e1v , lrowattr=ln_use_jattr ) |
---|
477 | CALL iom_get( inum, jpdom_data, 'e1f' , e1f , lrowattr=ln_use_jattr ) |
---|
478 | ! |
---|
479 | CALL iom_get( inum, jpdom_data, 'e2t' , e2t , lrowattr=ln_use_jattr ) |
---|
480 | CALL iom_get( inum, jpdom_data, 'e2u' , e2u , lrowattr=ln_use_jattr ) |
---|
481 | CALL iom_get( inum, jpdom_data, 'e2v' , e2v , lrowattr=ln_use_jattr ) |
---|
482 | CALL iom_get( inum, jpdom_data, 'e2f' , e2f , lrowattr=ln_use_jattr ) |
---|
483 | ! |
---|
484 | IF( iom_varid( inum, 'e1e2u', ldstop = .FALSE. ) > 0 ) THEN |
---|
485 | IF(lwp) WRITE(numout,*) 'hgr_read : e1e2u & e1e2v read in coordinates file' |
---|
486 | CALL iom_get( inum, jpdom_data, 'e1e2u' , e1e2u , lrowattr=ln_use_jattr ) |
---|
487 | CALL iom_get( inum, jpdom_data, 'e1e2v' , e1e2v , lrowattr=ln_use_jattr ) |
---|
488 | ke1e2u_v = 1 |
---|
489 | ELSE |
---|
490 | ke1e2u_v = 0 |
---|
491 | ENDIF |
---|
492 | ! |
---|
493 | CALL iom_close( inum ) |
---|
494 | |
---|
495 | END SUBROUTINE hgr_read |
---|
496 | |
---|
497 | !!====================================================================== |
---|
498 | END MODULE domhgr |
---|