GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: phylmd/orografi_strato.F90 Lines: 518 527 98.3 %
Date: 2023-06-30 12:56:34 Branches: 330 346 95.4 %

Line Branch Exec Source
1
44659008
SUBROUTINE drag_noro_strato(partdrag, nlon, nlev, dtime, paprs, pplay, pmea, pstd, &
2
576
    psig, pgam, pthe, ppic, pval, kgwd, kdx, ktest, t, u, v, pulow, pvlow, &
3
576
    pustr, pvstr, d_t, d_u, d_v)
4
5
  USE dimphy
6
  IMPLICIT NONE
7
  ! ======================================================================
8
  ! Auteur(s): F.Lott (LMD/CNRS) date: 19950201
9
  ! Object: Mountain drag interface. Made necessary because:
10
  ! 1. in the LMD-GCM Layers are from bottom to top,
11
  ! contrary to most European GCM.
12
  ! 2. the altitude above ground of each model layers
13
  ! needs to be known (variable zgeom)
14
  ! ======================================================================
15
  ! Explicit Arguments:
16
  ! ==================
17
  ! partdrag-input-I-control which part of the drag we consider (total part or GW part)
18
  ! nlon----input-I-Total number of horizontal points that get into physics
19
  ! nlev----input-I-Number of vertical levels
20
  ! dtime---input-R-Time-step (s)
21
  ! paprs---input-R-Pressure in semi layers    (Pa)
22
  ! pplay---input-R-Pressure model-layers      (Pa)
23
  ! t-------input-R-temperature (K)
24
  ! u-------input-R-Horizontal wind (m/s)
25
  ! v-------input-R-Meridional wind (m/s)
26
  ! pmea----input-R-Mean Orography (m)
27
  ! pstd----input-R-SSO standard deviation (m)
28
  ! psig----input-R-SSO slope
29
  ! pgam----input-R-SSO Anisotropy
30
  ! pthe----input-R-SSO Angle
31
  ! ppic----input-R-SSO Peacks elevation (m)
32
  ! pval----input-R-SSO Valleys elevation (m)
33
34
  ! kgwd- -input-I: Total nb of points where the orography schemes are active
35
  ! ktest--input-I: Flags to indicate active points
36
  ! kdx----input-I: Locate the physical location of an active point.
37
38
  ! pulow, pvlow -output-R: Low-level wind
39
  ! pustr, pvstr -output-R: Surface stress due to SSO drag      (Pa)
40
41
  ! d_t-----output-R: T increment
42
  ! d_u-----output-R: U increment
43
  ! d_v-----output-R: V increment
44
45
  ! Implicit Arguments:
46
  ! ===================
47
48
  ! iim--common-I: Number of longitude intervals
49
  ! jjm--common-I: Number of latitude intervals
50
  ! klon-common-I: Number of points seen by the physics
51
  ! (iim+1)*(jjm+1) for instance
52
  ! klev-common-I: Number of vertical layers
53
  ! ======================================================================
54
  ! Local Variables:
55
  ! ================
56
57
  ! zgeom-----R: Altitude of layer above ground
58
  ! pt, pu, pv --R: t u v from top to bottom
59
  ! pdtdt, pdudt, pdvdt --R: t u v tendencies (from top to bottom)
60
  ! papmf: pressure at model layer (from top to bottom)
61
  ! papmh: pressure at model 1/2 layer (from top to bottom)
62
63
  ! ======================================================================
64
  include "YOMCST.h"
65
  include "YOEGWD.h"
66
67
  ! ARGUMENTS
68
69
  INTEGER partdrag,nlon, nlev
70
  REAL dtime
71
  REAL paprs(nlon, nlev+1)
72
  REAL pplay(nlon, nlev)
73
  REAL pmea(nlon), pstd(nlon), psig(nlon), pgam(nlon), pthe(nlon)
74
  REAL ppic(nlon), pval(nlon)
75
  REAL pulow(nlon), pvlow(nlon), pustr(nlon), pvstr(nlon)
76
  REAL t(nlon, nlev), u(nlon, nlev), v(nlon, nlev)
77
  REAL d_t(nlon, nlev), d_u(nlon, nlev), d_v(nlon, nlev)
78
79
  INTEGER i, k, kgwd, kdx(nlon), ktest(nlon)
80
81
  ! LOCAL VARIABLES:
82
83
1152
  REAL zgeom(klon, klev)
84
1152
  REAL pdtdt(klon, klev), pdudt(klon, klev), pdvdt(klon, klev)
85
1152
  REAL pt(klon, klev), pu(klon, klev), pv(klon, klev)
86
576
  REAL papmf(klon, klev), papmh(klon, klev+1)
87
  CHARACTER (LEN=20) :: modname = 'orografi_strato'
88
  CHARACTER (LEN=80) :: abort_message
89
90
  ! INITIALIZE OUTPUT VARIABLES
91
92
573120
  DO i = 1, klon
93
572544
    pulow(i) = 0.0
94
572544
    pvlow(i) = 0.0
95
572544
    pustr(i) = 0.0
96
573120
    pvstr(i) = 0.0
97
  END DO
98
23040
  DO k = 1, klev
99
22352256
    DO i = 1, klon
100
22329216
      d_t(i, k) = 0.0
101
22329216
      d_u(i, k) = 0.0
102
22329216
      d_v(i, k) = 0.0
103
22329216
      pdudt(i, k) = 0.0
104
22329216
      pdvdt(i, k) = 0.0
105
22351680
      pdtdt(i, k) = 0.0
106
    END DO
107
  END DO
108
109
  ! PREPARE INPUT VARIABLES FOR ORODRAG (i.e., ORDERED FROM TOP TO BOTTOM)
110
  ! CALCULATE LAYERS HEIGHT ABOVE GROUND)
111
112
23040
  DO k = 1, klev
113
22352256
    DO i = 1, klon
114
22329216
      pt(i, k) = t(i, klev-k+1)
115
22329216
      pu(i, k) = u(i, klev-k+1)
116
22329216
      pv(i, k) = v(i, klev-k+1)
117
22351680
      papmf(i, k) = pplay(i, klev-k+1)
118
    END DO
119
  END DO
120
23616
  DO k = 1, klev + 1
121
22925376
    DO i = 1, klon
122
22924800
      papmh(i, k) = paprs(i, klev-k+2)
123
    END DO
124
  END DO
125
573120
  DO i = 1, klon
126
573120
    zgeom(i, klev) = rd*pt(i, klev)*log(papmh(i,klev+1)/papmf(i,klev))
127
  END DO
128
22464
  DO k = klev - 1, 1, -1
129
21779136
    DO i = 1, klon
130
      zgeom(i, k) = zgeom(i, k+1) + rd*(pt(i,k)+pt(i,k+1))/2.0*log(papmf(i,k+ &
131
21778560
        1)/papmf(i,k))
132
    END DO
133
  END DO
134
135
  ! CALL SSO DRAG ROUTINES
136
137
  CALL orodrag_strato(partdrag,klon, klev, kgwd, kdx, ktest, dtime, papmh, papmf, &
138
    zgeom, pt, pu, pv, pmea, pstd, psig, pgam, pthe, ppic, pval, pulow, &
139
576
    pvlow, pdudt, pdvdt, pdtdt)
140
141
  ! COMPUTE INCREMENTS AND STRESS FROM TENDENCIES
142
143
23040
  DO k = 1, klev
144
22352256
    DO i = 1, klon
145
22329216
      d_u(i, klev+1-k) = dtime*pdudt(i, k)
146
22329216
      d_v(i, klev+1-k) = dtime*pdvdt(i, k)
147
22329216
      d_t(i, klev+1-k) = dtime*pdtdt(i, k)
148
22329216
      pustr(i) = pustr(i) + pdudt(i, k)*(papmh(i,k+1)-papmh(i,k))/rg
149
22351680
      pvstr(i) = pvstr(i) + pdvdt(i, k)*(papmh(i,k+1)-papmh(i,k))/rg
150
    END DO
151
  END DO
152
153
576
  RETURN
154
END SUBROUTINE drag_noro_strato
155
156
20847168
SUBROUTINE orodrag_strato(partdrag,nlon, nlev, kgwd, kdx, ktest, ptsphy, paphm1, &
157
    papm1, pgeom1, ptm1, pum1, pvm1, pmea, pstd, psig, pgam, pthe, ppic, pval &
158
  ! outputs
159
    , pulow, pvlow, pvom, pvol, pte)
160
161
35716417
  USE dimphy
162
  IMPLICIT NONE
163
164
165
  ! **** *orodrag* - does the SSO drag  parametrization.
166
167
  ! purpose.
168
  ! --------
169
170
  ! this routine computes the physical tendencies of the
171
  ! prognostic variables u,v  and t due to  vertical transports by
172
  ! subgridscale orographically excited gravity waves, and to
173
  ! low level blocked flow drag.
174
175
  ! **   interface.
176
  ! ----------
177
  ! called from *drag_noro*.
178
179
  ! the routine takes its input from the long-term storage:
180
  ! u,v,t and p at t-1.
181
182
  ! explicit arguments :
183
  ! --------------------
184
  ! ==== inputs ===
185
  ! partdrag-input-I-control which part of the drag we consider (total part or GW part)
186
  ! nlon----input-I-Total number of horizontal points that get into physics
187
  ! nlev----input-I-Number of vertical levels
188
189
  ! kgwd- -input-I: Total nb of points where the orography schemes are active
190
  ! ktest--input-I: Flags to indicate active points
191
  ! kdx----input-I: Locate the physical location of an active point.
192
  ! ptsphy--input-R-Time-step (s)
193
  ! paphm1--input-R: pressure at model 1/2 layer
194
  ! papm1---input-R: pressure at model layer
195
  ! pgeom1--input-R: Altitude of layer above ground
196
  ! ptm1, pum1, pvm1--R-: t, u and v
197
  ! pmea----input-R-Mean Orography (m)
198
  ! pstd----input-R-SSO standard deviation (m)
199
  ! psig----input-R-SSO slope
200
  ! pgam----input-R-SSO Anisotropy
201
  ! pthe----input-R-SSO Angle
202
  ! ppic----input-R-SSO Peacks elevation (m)
203
  ! pval----input-R-SSO Valleys elevation (m)
204
205
  INTEGER  nlon, nlev, kgwd
206
  REAL ptsphy
207
208
  ! ==== outputs ===
209
  ! pulow, pvlow -output-R: Low-level wind
210
211
  ! pte -----output-R: T tendency
212
  ! pvom-----output-R: U tendency
213
  ! pvol-----output-R: V tendency
214
215
216
  ! Implicit Arguments:
217
  ! ===================
218
219
  ! klon-common-I: Number of points seen by the physics
220
  ! klev-common-I: Number of vertical layers
221
222
  ! method.
223
  ! -------
224
225
  ! externals.
226
  ! ----------
227
  INTEGER ismin, ismax
228
  EXTERNAL ismin, ismax
229
230
  ! reference.
231
  ! ----------
232
233
  ! author.
234
  ! -------
235
  ! m.miller + b.ritter   e.c.m.w.f.     15/06/86.
236
237
  ! f.lott + m. miller    e.c.m.w.f.     22/11/94
238
  ! -----------------------------------------------------------------------
239
240
241
  include "YOMCST.h"
242
  include "YOEGWD.h"
243
244
  ! -----------------------------------------------------------------------
245
246
  ! *       0.1   arguments
247
  ! ---------
248
249
  INTEGER partdrag
250
  REAL pte(nlon, nlev), pvol(nlon, nlev), pvom(nlon, nlev), pulow(nlon), &
251
    pvlow(nlon)
252
  REAL pum1(nlon, nlev), pvm1(nlon, nlev), ptm1(nlon, nlev), pmea(nlon), &
253
    pstd(nlon), psig(nlon), pgam(nlon), pthe(nlon), ppic(nlon), pval(nlon), &
254
    pgeom1(nlon, nlev), papm1(nlon, nlev), paphm1(nlon, nlev+1)
255
256
  INTEGER kdx(nlon), ktest(nlon)
257
  ! -----------------------------------------------------------------------
258
259
  ! *       0.2   local arrays
260
  ! ------------
261
1152
  INTEGER isect(klon), icrit(klon), ikcrith(klon), ikenvh(klon), iknu(klon), &
262
1152
    iknu2(klon), ikcrit(klon), ikhlim(klon)
263
264
1152
  REAL ztau(klon, klev+1), zstab(klon, klev+1), zvph(klon, klev+1), &
265
1152
    zrho(klon, klev+1), zri(klon, klev+1), zpsi(klon, klev+1), &
266
1152
    zzdep(klon, klev)
267
1152
  REAL zdudt(klon), zdvdt(klon), zdtdt(klon), zdedt(klon), zvidis(klon), &
268
1152
    ztfr(klon), znu(klon), zd1(klon), zd2(klon), zdmod(klon)
269
270
271
  ! local quantities:
272
273
  INTEGER jl, jk, ji
274
  REAL ztmst, zdelp, ztemp, zforc, ztend, rover, facpart
275
  REAL zb, zc, zconb, zabsv, zzd1, ratio, zbet, zust, zvst, zdis
276
277
  ! ------------------------------------------------------------------
278
279
  ! *         1.    initialization
280
  ! --------------
281
282
  ! print *,' in orodrag'
283
284
  ! ------------------------------------------------------------------
285
286
  ! *         1.1   computational constants
287
  ! -----------------------
288
289
290
  ! ztmst=twodt
291
  ! if(nstep.eq.nstart) ztmst=0.5*twodt
292
576
  ztmst = ptsphy
293
294
  ! ------------------------------------------------------------------
295
296
  ! *         1.3   check whether row contains point for printing
297
  ! ---------------------------------------------
298
299
300
  ! ------------------------------------------------------------------
301
302
  ! *         2.     precompute basic state variables.
303
  ! *                ---------- ----- ----- ----------
304
  ! *                define low level wind, project winds in plane of
305
  ! *                low level wind, determine sector in which to take
306
  ! *                the variance and set indicator for critical levels.
307
308
309
310
311
312
  CALL orosetup_strato(nlon, nlev, ktest, ikcrit, ikcrith, icrit, isect, &
313
    ikhlim, ikenvh, iknu, iknu2, paphm1, papm1, pum1, pvm1, ptm1, pgeom1, &
314
    pstd, zrho, zri, zstab, ztau, zvph, zpsi, zzdep, pulow, pvlow, pthe, &
315
576
    pgam, pmea, ppic, pval, znu, zd1, zd2, zdmod)
316
317
  ! ***********************************************************
318
319
320
  ! *         3.      compute low level stresses using subcritical and
321
  ! *                 supercritical forms.computes anisotropy coefficient
322
  ! *                 as measure of orographic twodimensionality.
323
324
325
  CALL gwstress_strato(nlon, nlev, ikcrit, isect, ikhlim, ktest, ikcrith, &
326
    icrit, ikenvh, iknu, zrho, zstab, zvph, pstd, psig, pmea, ppic, pval, &
327
576
    ztfr, ztau, pgeom1, pgam, zd1, zd2, zdmod, znu)
328
329
  ! *         4.      compute stress profile including
330
  ! trapped waves, wave breaking,
331
  ! linear decay in stratosphere.
332
333
334
335
336
  CALL gwprofil_strato(nlon, nlev, kgwd, kdx, ktest, ikcrit, ikcrith, icrit, &
337
    ikenvh, iknu, iknu2, paphm1, zrho, zstab, ztfr, zvph, zri, ztau &
338
576
    , zdmod, znu, psig, pgam, pstd, ppic, pval)
339
340
  ! *         5.      Compute tendencies from waves stress profile.
341
  ! Compute low level blocked flow drag.
342
  ! *                 --------------------------------------------
343
344
345
346
347
  ! explicit solution at all levels for the gravity wave
348
  ! implicit solution for the blocked levels
349
350
573120
  DO jl = kidia, kfdia
351
572544
    zvidis(jl) = 0.0
352
572544
    zdudt(jl) = 0.0
353
572544
    zdvdt(jl) = 0.0
354
573120
    zdtdt(jl) = 0.0
355
  END DO
356
357
358
23040
  DO jk = 1, klev
359
360
361
    ! WAVE STRESS
362
    ! -------------
363
364
365
22352256
    DO ji = kidia, kfdia
366
367
22351680
      IF (ktest(ji)==1) THEN
368
369
10423296
        zdelp = paphm1(ji, jk+1) - paphm1(ji, jk)
370
10423296
        ztemp = -rg*(ztau(ji,jk+1)-ztau(ji,jk))/(zvph(ji,klev+1)*zdelp)
371
372
10423296
        zdudt(ji) = (pulow(ji)*zd1(ji)-pvlow(ji)*zd2(ji))*ztemp/zdmod(ji)
373
10423296
        zdvdt(ji) = (pvlow(ji)*zd1(ji)+pulow(ji)*zd2(ji))*ztemp/zdmod(ji)
374
375
        ! Control Overshoots
376
377
378
10423296
        IF (jk>=nstra) THEN
379
          rover = 0.10
380
10423296
          IF (abs(zdudt(ji))>rover*abs(pum1(ji,jk))/ztmst) zdudt(ji) = rover* &
381
11152
            abs(pum1(ji,jk))/ztmst*zdudt(ji)/(abs(zdudt(ji))+1.E-10)
382
10423296
          IF (abs(zdvdt(ji))>rover*abs(pvm1(ji,jk))/ztmst) zdvdt(ji) = rover* &
383
23454
            abs(pvm1(ji,jk))/ztmst*zdvdt(ji)/(abs(zdvdt(ji))+1.E-10)
384
        END IF
385
386
        rover = 0.25
387
10423296
        zforc = sqrt(zdudt(ji)**2+zdvdt(ji)**2)
388
10423296
        ztend = sqrt(pum1(ji,jk)**2+pvm1(ji,jk)**2)/ztmst
389
390
10423296
        IF (zforc>=rover*ztend) THEN
391
          zdudt(ji) = rover*ztend/zforc*zdudt(ji)
392
          zdvdt(ji) = rover*ztend/zforc*zdvdt(ji)
393
        END IF
394
395
        ! BLOCKED FLOW DRAG:
396
        ! -----------------
397
398
10423296
        IF (partdrag .GE. 2) THEN
399
        facpart=0.
400
        ELSE
401
5211648
        facpart=gkwake
402
        ENDIF
403
404
405
10423296
        IF (jk>ikenvh(ji)) THEN
406
1599026
          zb = 1.0 - 0.18*pgam(ji) - 0.04*pgam(ji)**2
407
1599026
          zc = 0.48*pgam(ji) + 0.3*pgam(ji)**2
408
1599026
          zconb = 2.*ztmst*facpart*psig(ji)/(4.*pstd(ji))
409
1599026
          zabsv = sqrt(pum1(ji,jk)**2+pvm1(ji,jk)**2)/2.
410
1599026
          zzd1 = zb*cos(zpsi(ji,jk))**2 + zc*sin(zpsi(ji,jk))**2
411
          ratio = (cos(zpsi(ji,jk))**2+pgam(ji)*sin(zpsi(ji, &
412
1599026
            jk))**2)/(pgam(ji)*cos(zpsi(ji,jk))**2+sin(zpsi(ji,jk))**2)
413
1599026
          zbet = max(0., 2.-1./ratio)*zconb*zzdep(ji, jk)*zzd1*zabsv
414
415
          ! OPPOSED TO THE WIND
416
417
1599026
          zdudt(ji) = -pum1(ji, jk)/ztmst
418
1599026
          zdvdt(ji) = -pvm1(ji, jk)/ztmst
419
420
          ! PERPENDICULAR TO THE SSO MAIN AXIS:
421
422
          ! mod     zdudt(ji)=-(pum1(ji,jk)*cos(pthe(ji)*rpi/180.)
423
          ! mod *              +pvm1(ji,jk)*sin(pthe(ji)*rpi/180.))
424
          ! mod *              *cos(pthe(ji)*rpi/180.)/ztmst
425
          ! mod     zdvdt(ji)=-(pum1(ji,jk)*cos(pthe(ji)*rpi/180.)
426
          ! mod *              +pvm1(ji,jk)*sin(pthe(ji)*rpi/180.))
427
          ! mod *              *sin(pthe(ji)*rpi/180.)/ztmst
428
429
1599026
          zdudt(ji) = zdudt(ji)*(zbet/(1.+zbet))
430
1599026
          zdvdt(ji) = zdvdt(ji)*(zbet/(1.+zbet))
431
        END IF
432
10423296
        pvom(ji, jk) = zdudt(ji)
433
10423296
        pvol(ji, jk) = zdvdt(ji)
434
10423296
        zust = pum1(ji, jk) + ztmst*zdudt(ji)
435
10423296
        zvst = pvm1(ji, jk) + ztmst*zdvdt(ji)
436
10423296
        zdis = 0.5*(pum1(ji,jk)**2+pvm1(ji,jk)**2-zust**2-zvst**2)
437
10423296
        zdedt(ji) = zdis/ztmst
438
10423296
        zvidis(ji) = zvidis(ji) + zdis*zdelp
439
10423296
        zdtdt(ji) = zdedt(ji)/rcpd
440
441
        ! NO TENDENCIES ON TEMPERATURE .....
442
443
        ! Instead of, pte(ji,jk)=zdtdt(ji), due to mechanical dissipation
444
445
10423296
        pte(ji, jk) = 0.0
446
447
      END IF
448
449
    END DO
450
  END DO
451
452
576
  RETURN
453
END SUBROUTINE orodrag_strato
454
576
SUBROUTINE orosetup_strato(nlon, nlev, ktest, kkcrit, kkcrith, kcrit, ksect, &
455
576
    kkhlim, kkenvh, kknu, kknu2, paphm1, papm1, pum1, pvm1, ptm1, pgeom1, &
456
    pstd, prho, pri, pstab, ptau, pvph, ppsi, pzdep, pulow, pvlow, ptheta, &
457
576
    pgam, pmea, ppic, pval, pnu, pd1, pd2, pdmod)
458
459
  ! **** *gwsetup*
460
461
  ! purpose.
462
  ! --------
463
  ! SET-UP THE ESSENTIAL PARAMETERS OF THE SSO DRAG SCHEME:
464
  ! DEPTH OF LOW WBLOCKED LAYER, LOW-LEVEL FLOW, BACKGROUND
465
  ! STRATIFICATION.....
466
467
  ! **   interface.
468
  ! ----------
469
  ! from *orodrag*
470
471
  ! explicit arguments :
472
  ! --------------------
473
  ! ==== inputs ===
474
475
  ! nlon----input-I-Total number of horizontal points that get into physics
476
  ! nlev----input-I-Number of vertical levels
477
  ! ktest--input-I: Flags to indicate active points
478
479
  ! ptsphy--input-R-Time-step (s)
480
  ! paphm1--input-R: pressure at model 1/2 layer
481
  ! papm1---input-R: pressure at model layer
482
  ! pgeom1--input-R: Altitude of layer above ground
483
  ! ptm1, pum1, pvm1--R-: t, u and v
484
  ! pmea----input-R-Mean Orography (m)
485
  ! pstd----input-R-SSO standard deviation (m)
486
  ! psig----input-R-SSO slope
487
  ! pgam----input-R-SSO Anisotropy
488
  ! pthe----input-R-SSO Angle
489
  ! ppic----input-R-SSO Peacks elevation (m)
490
  ! pval----input-R-SSO Valleys elevation (m)
491
492
  ! ==== outputs ===
493
  ! pulow, pvlow -output-R: Low-level wind
494
  ! kkcrit----I-: Security value for top of low level flow
495
  ! kcrit-----I-: Critical level
496
  ! ksect-----I-: Not used
497
  ! kkhlim----I-: Not used
498
  ! kkenvh----I-: Top of blocked flow layer
499
  ! kknu------I-: Layer that sees mountain peacks
500
  ! kknu2-----I-: Layer that sees mountain peacks above mountain mean
501
  ! kknub-----I-: Layer that sees mountain mean above valleys
502
  ! prho------R-: Density at 1/2 layers
503
  ! pri-------R-: Background Richardson Number, Wind shear measured along GW
504
  ! stress
505
  ! pstab-----R-: Brunt-Vaisala freq. at 1/2 layers
506
  ! pvph------R-: Wind in  plan of GW stress, Half levels.
507
  ! ppsi------R-: Angle between low level wind and SS0 main axis.
508
  ! pd1-------R-| Compared the ratio of the stress
509
  ! pd2-------R-| that is along the wind to that Normal to it.
510
  ! pdi define the plane of low level stress
511
  ! compared to the low level wind.
512
  ! see p. 108 Lott & Miller (1997).
513
  ! pdmod-----R-: Norme of pdi
514
515
  ! === local arrays ===
516
517
  ! zvpf------R-: Wind projected in the plan of the low-level stress.
518
519
  ! ==== outputs ===
520
521
  ! implicit arguments :   none
522
  ! --------------------
523
524
  ! method.
525
  ! -------
526
527
528
  ! externals.
529
  ! ----------
530
531
532
  ! reference.
533
  ! ----------
534
535
  ! see ecmwf research department documentation of the "i.f.s."
536
537
  ! author.
538
  ! -------
539
540
  ! modifications.
541
  ! --------------
542
  ! f.lott  for the new-gwdrag scheme november 1993
543
544
  ! -----------------------------------------------------------------------
545
  USE dimphy
546
  IMPLICIT NONE
547
548
549
  include "YOMCST.h"
550
  include "YOEGWD.h"
551
552
  ! -----------------------------------------------------------------------
553
554
  ! *       0.1   arguments
555
  ! ---------
556
557
  INTEGER nlon, nlev
558
  INTEGER kkcrit(nlon), kkcrith(nlon), kcrit(nlon), ksect(nlon), &
559
    kkhlim(nlon), ktest(nlon), kkenvh(nlon)
560
561
562
  REAL paphm1(nlon, klev+1), papm1(nlon, klev), pum1(nlon, klev), &
563
    pvm1(nlon, klev), ptm1(nlon, klev), pgeom1(nlon, klev), &
564
    prho(nlon, klev+1), pri(nlon, klev+1), pstab(nlon, klev+1), &
565
    ptau(nlon, klev+1), pvph(nlon, klev+1), ppsi(nlon, klev+1), &
566
    pzdep(nlon, klev)
567
  REAL pulow(nlon), pvlow(nlon), ptheta(nlon), pgam(nlon), pnu(nlon), &
568
    pd1(nlon), pd2(nlon), pdmod(nlon)
569
  REAL pstd(nlon), pmea(nlon), ppic(nlon), pval(nlon)
570
571
  ! -----------------------------------------------------------------------
572
573
  ! *       0.2   local arrays
574
  ! ------------
575
576
577
  INTEGER ilevh, jl, jk
578
  REAL zcons1, zcons2, zhgeo, zu, zphi
579
  REAL zvt1, zvt2, zdwind, zwind, zdelp
580
  REAL zstabm, zstabp, zrhom, zrhop
581
  LOGICAL lo
582
1152
  LOGICAL ll1(klon, klev+1)
583
1152
  INTEGER kknu(klon), kknu2(klon), kknub(klon), kknul(klon), kentp(klon), &
584
1152
    ncount(klon)
585
586
1152
  REAL zhcrit(klon, klev), zvpf(klon, klev), zdp(klon, klev)
587
1152
  REAL znorm(klon), zb(klon), zc(klon), zulow(klon), zvlow(klon), znup(klon), &
588
1152
    znum(klon)
589
590
  ! ------------------------------------------------------------------
591
592
  ! *         1.    initialization
593
  ! --------------
594
595
  ! PRINT *,' in orosetup'
596
597
  ! ------------------------------------------------------------------
598
599
  ! *         1.1   computational constants
600
  ! -----------------------
601
602
603
576
  ilevh = klev/3
604
605
576
  zcons1 = 1./rd
606
576
  zcons2 = rg**2/rcpd
607
608
  ! ------------------------------------------------------------------
609
610
  ! *         2.
611
  ! --------------
612
613
614
  ! ------------------------------------------------------------------
615
616
  ! *         2.1     define low level wind, project winds in plane of
617
  ! *                 low level wind, determine sector in which to take
618
  ! *                 the variance and set indicator for critical levels.
619
620
621
622
573120
  DO jl = kidia, kfdia
623
572544
    kknu(jl) = klev
624
572544
    kknu2(jl) = klev
625
572544
    kknub(jl) = klev
626
572544
    kknul(jl) = klev
627
572544
    pgam(jl) = max(pgam(jl), gtsec)
628
576
    ll1(jl, klev+1) = .FALSE.
629
  END DO
630
631
  ! Ajouter une initialisation (L. Li, le 23fev99):
632
633
16128
  DO jk = klev, ilevh, -1
634
15474816
    DO jl = kidia, kfdia
635
15474240
      ll1(jl, jk) = .FALSE.
636
    END DO
637
  END DO
638
639
  ! *      define top of low level flow
640
  ! ----------------------------
641
16128
  DO jk = klev, ilevh, -1
642
15474816
    DO jl = kidia, kfdia
643
15474240
      IF (ktest(jl)==1) THEN
644
7216128
        lo = (paphm1(jl,jk)/paphm1(jl,klev+1)) >= gsigcr
645
7216128
        IF (lo) THEN
646
1906012
          kkcrit(jl) = jk
647
        END IF
648
7216128
        zhcrit(jl, jk) = ppic(jl) - pval(jl)
649
7216128
        zhgeo = pgeom1(jl, jk)/rg
650
7216128
        ll1(jl, jk) = (zhgeo>zhcrit(jl,jk))
651
7216128
        IF (ll1(jl,jk) .NEQV. ll1(jl,jk+1)) THEN
652
267264
          kknu(jl) = jk
653
        END IF
654
7216128
        IF (.NOT. ll1(jl,ilevh)) kknu(jl) = ilevh
655
      END IF
656
    END DO
657
  END DO
658
16128
  DO jk = klev, ilevh, -1
659
15474816
    DO jl = kidia, kfdia
660
15474240
      IF (ktest(jl)==1) THEN
661
7216128
        zhcrit(jl, jk) = ppic(jl) - pmea(jl)
662
7216128
        zhgeo = pgeom1(jl, jk)/rg
663
7216128
        ll1(jl, jk) = (zhgeo>zhcrit(jl,jk))
664
7216128
        IF (ll1(jl,jk) .NEQV. ll1(jl,jk+1)) THEN
665
267264
          kknu2(jl) = jk
666
        END IF
667
7216128
        IF (.NOT. ll1(jl,ilevh)) kknu2(jl) = ilevh
668
      END IF
669
    END DO
670
  END DO
671
16128
  DO jk = klev, ilevh, -1
672
15474816
    DO jl = kidia, kfdia
673
15474240
      IF (ktest(jl)==1) THEN
674
7216128
        zhcrit(jl, jk) = amin1(ppic(jl)-pmea(jl), pmea(jl)-pval(jl))
675
7216128
        zhgeo = pgeom1(jl, jk)/rg
676
7216128
        ll1(jl, jk) = (zhgeo>zhcrit(jl,jk))
677
7216128
        IF (ll1(jl,jk) .NEQV. ll1(jl,jk+1)) THEN
678
267264
          kknub(jl) = jk
679
        END IF
680
7216128
        IF (.NOT. ll1(jl,ilevh)) kknub(jl) = ilevh
681
      END IF
682
    END DO
683
  END DO
684
685
573120
  DO jl = kidia, kfdia
686
573120
    IF (ktest(jl)==1) THEN
687
267264
      kknu(jl) = min(kknu(jl), nktopg)
688
267264
      kknu2(jl) = min(kknu2(jl), nktopg)
689
267264
      kknub(jl) = min(kknub(jl), nktopg)
690
267264
      kknul(jl) = klev
691
    END IF
692
  END DO
693
694
  ! c*     initialize various arrays
695
696
573120
  DO jl = kidia, kfdia
697
572544
    prho(jl, klev+1) = 0.0
698
    ! ym correction en attendant mieux
699
572544
    prho(jl, 1) = 0.0
700
572544
    pstab(jl, klev+1) = 0.0
701
572544
    pstab(jl, 1) = 0.0
702
572544
    pri(jl, klev+1) = 9999.0
703
572544
    ppsi(jl, klev+1) = 0.0
704
572544
    pri(jl, 1) = 0.0
705
572544
    pvph(jl, 1) = 0.0
706
572544
    pvph(jl, klev+1) = 0.0
707
    ! ym correction en attendant mieux
708
    ! ym      pvph(jl,klev)    =0.0
709
572544
    pulow(jl) = 0.0
710
572544
    pvlow(jl) = 0.0
711
572544
    zulow(jl) = 0.0
712
572544
    zvlow(jl) = 0.0
713
572544
    kkcrith(jl) = klev
714
572544
    kkenvh(jl) = klev
715
572544
    kentp(jl) = klev
716
572544
    kcrit(jl) = 1
717
572544
    ncount(jl) = 0
718
573120
    ll1(jl, klev+1) = .FALSE.
719
  END DO
720
721
  ! *     define flow density and stratification (rho and N2)
722
  ! at semi layers.
723
  ! -------------------------------------------------------
724
725
22464
  DO jk = klev, 2, -1
726
21779136
    DO jl = kidia, kfdia
727
21778560
      IF (ktest(jl)==1) THEN
728
10156032
        zdp(jl, jk) = papm1(jl, jk) - papm1(jl, jk-1)
729
10156032
        prho(jl, jk) = 2.*paphm1(jl, jk)*zcons1/(ptm1(jl,jk)+ptm1(jl,jk-1))
730
        pstab(jl, jk) = 2.*zcons2/(ptm1(jl,jk)+ptm1(jl,jk-1))* &
731
10156032
          (1.-rcpd*prho(jl,jk)*(ptm1(jl,jk)-ptm1(jl,jk-1))/zdp(jl,jk))
732
10156032
        pstab(jl, jk) = max(pstab(jl,jk), gssec)
733
      END IF
734
    END DO
735
  END DO
736
737
  ! ********************************************************************
738
739
  ! *     define Low level flow (between ground and peacks-valleys)
740
  ! ---------------------------------------------------------
741
16128
  DO jk = klev, ilevh, -1
742
15474816
    DO jl = kidia, kfdia
743
15474240
      IF (ktest(jl)==1) THEN
744

7216128
        IF (jk>=kknu2(jl) .AND. jk<=kknul(jl)) THEN
745
          pulow(jl) = pulow(jl) + pum1(jl, jk)*(paphm1(jl,jk+1)-paphm1(jl,jk) &
746
1936914
            )
747
          pvlow(jl) = pvlow(jl) + pvm1(jl, jk)*(paphm1(jl,jk+1)-paphm1(jl,jk) &
748
1936914
            )
749
          pstab(jl, klev+1) = pstab(jl, klev+1) + pstab(jl, jk)*(paphm1(jl,jk &
750
1936914
            +1)-paphm1(jl,jk))
751
          prho(jl, klev+1) = prho(jl, klev+1) + prho(jl, jk)*(paphm1(jl,jk+1) &
752
1936914
            -paphm1(jl,jk))
753
        END IF
754
      END IF
755
    END DO
756
  END DO
757
573120
  DO jl = kidia, kfdia
758
573120
    IF (ktest(jl)==1) THEN
759
267264
      pulow(jl) = pulow(jl)/(paphm1(jl,kknul(jl)+1)-paphm1(jl,kknu2(jl)))
760
267264
      pvlow(jl) = pvlow(jl)/(paphm1(jl,kknul(jl)+1)-paphm1(jl,kknu2(jl)))
761
267264
      znorm(jl) = max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec)
762
267264
      pvph(jl, klev+1) = znorm(jl)
763
      pstab(jl, klev+1) = pstab(jl, klev+1)/(paphm1(jl,kknul(jl)+1)-paphm1(jl &
764
267264
        ,kknu2(jl)))
765
      prho(jl, klev+1) = prho(jl, klev+1)/(paphm1(jl,kknul(jl)+1)-paphm1(jl, &
766
267264
        kknu2(jl)))
767
    END IF
768
  END DO
769
770
771
  ! *******  setup orography orientation relative to the low level
772
  ! wind and define parameters of the Anisotropic wave stress.
773
774
573120
  DO jl = kidia, kfdia
775
573120
    IF (ktest(jl)==1) THEN
776
122938
      lo = (pulow(jl)<gvsec) .AND. (pulow(jl)>=-gvsec)
777
      IF (lo) THEN
778
4252
        zu = pulow(jl) + 2.*gvsec
779
      ELSE
780
        zu = pulow(jl)
781
      END IF
782
267264
      zphi = atan(pvlow(jl)/zu)
783
267264
      ppsi(jl, klev+1) = ptheta(jl)*rpi/180. - zphi
784
267264
      zb(jl) = 1. - 0.18*pgam(jl) - 0.04*pgam(jl)**2
785
267264
      zc(jl) = 0.48*pgam(jl) + 0.3*pgam(jl)**2
786
267264
      pd1(jl) = zb(jl) - (zb(jl)-zc(jl))*(sin(ppsi(jl,klev+1))**2)
787
267264
      pd2(jl) = (zb(jl)-zc(jl))*sin(ppsi(jl,klev+1))*cos(ppsi(jl,klev+1))
788
267264
      pdmod(jl) = sqrt(pd1(jl)**2+pd2(jl)**2)
789
    END IF
790
  END DO
791
792
  ! ************ projet flow in plane of lowlevel stress *************
793
  ! ************ Find critical levels...                 *************
794
795
23040
  DO jk = 1, klev
796
22352256
    DO jl = kidia, kfdia
797
22329216
      IF (ktest(jl)==1) THEN
798
10423296
        zvt1 = pulow(jl)*pum1(jl, jk) + pvlow(jl)*pvm1(jl, jk)
799
10423296
        zvt2 = -pvlow(jl)*pum1(jl, jk) + pulow(jl)*pvm1(jl, jk)
800
10423296
        zvpf(jl, jk) = (zvt1*pd1(jl)+zvt2*pd2(jl))/(znorm(jl)*pdmod(jl))
801
      END IF
802
22329216
      ptau(jl, jk) = 0.0
803
22329216
      pzdep(jl, jk) = 0.0
804
22329216
      ppsi(jl, jk) = 0.0
805
22351680
      ll1(jl, jk) = .FALSE.
806
    END DO
807
  END DO
808
22464
  DO jk = 2, klev
809
21779136
    DO jl = kidia, kfdia
810
21778560
      IF (ktest(jl)==1) THEN
811
10156032
        zdp(jl, jk) = papm1(jl, jk) - papm1(jl, jk-1)
812
        pvph(jl, jk) = ((paphm1(jl,jk)-papm1(jl,jk-1))*zvpf(jl,jk)+(papm1(jl, &
813
10156032
          jk)-paphm1(jl,jk))*zvpf(jl,jk-1))/zdp(jl, jk)
814
10156032
        IF (pvph(jl,jk)<gvsec) THEN
815
3030215
          pvph(jl, jk) = gvsec
816
3030215
          kcrit(jl) = jk
817
        END IF
818
      END IF
819
    END DO
820
  END DO
821
822
  ! *         2.3     mean flow richardson number.
823
824
825
22464
  DO jk = 2, klev
826
21779136
    DO jl = kidia, kfdia
827
21778560
      IF (ktest(jl)==1) THEN
828
10156032
        zdwind = max(abs(zvpf(jl,jk)-zvpf(jl,jk-1)), gvsec)
829
10156032
        pri(jl, jk) = pstab(jl, jk)*(zdp(jl,jk)/(rg*prho(jl,jk)*zdwind))**2
830
10156032
        pri(jl, jk) = max(pri(jl,jk), grcrit)
831
      END IF
832
    END DO
833
  END DO
834
835
836
837
  ! *      define top of 'envelope' layer
838
  ! ----------------------------
839
840
573120
  DO jl = kidia, kfdia
841
572544
    pnu(jl) = 0.0
842
573120
    znum(jl) = 0.0
843
  END DO
844
845
21888
  DO jk = 2, klev - 1
846
21206016
    DO jl = kidia, kfdia
847
848
21205440
      IF (ktest(jl)==1) THEN
849
850
9888768
        IF (jk>=kknu2(jl)) THEN
851
852
1669650
          znum(jl) = pnu(jl)
853
          zwind = (pulow(jl)*pum1(jl,jk)+pvlow(jl)*pvm1(jl,jk))/ &
854
1669650
            max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec)
855
1669650
          zwind = max(sqrt(zwind**2), gvsec)
856
1669650
          zdelp = paphm1(jl, jk+1) - paphm1(jl, jk)
857
1669650
          zstabm = sqrt(max(pstab(jl,jk),gssec))
858
1669650
          zstabp = sqrt(max(pstab(jl,jk+1),gssec))
859
1669650
          zrhom = prho(jl, jk)
860
1669650
          zrhop = prho(jl, jk+1)
861
          pnu(jl) = pnu(jl) + (zdelp/rg)*((zstabp/zrhop+zstabm/zrhom)/2.)/ &
862
1669650
            zwind
863

336931
          IF ((znum(jl)<=gfrcrit) .AND. (pnu(jl)>gfrcrit) .AND. (kkenvh( &
864
266307
            jl)==klev)) kkenvh(jl) = jk
865
866
        END IF
867
868
      END IF
869
870
    END DO
871
  END DO
872
873
  ! calculation of a dynamical mixing height for when the waves
874
  ! BREAK AT LOW LEVEL: The drag will be repartited over
875
  ! a depths that depends on waves vertical wavelength,
876
  ! not just between two adjacent model layers.
877
  ! of gravity waves:
878
879
573120
  DO jl = kidia, kfdia
880
572544
    znup(jl) = 0.0
881
573120
    znum(jl) = 0.0
882
  END DO
883
884
21888
  DO jk = klev - 1, 2, -1
885
21206016
    DO jl = kidia, kfdia
886
887
21205440
      IF (ktest(jl)==1) THEN
888
889
9888768
        znum(jl) = znup(jl)
890
        zwind = (pulow(jl)*pum1(jl,jk)+pvlow(jl)*pvm1(jl,jk))/ &
891
9888768
          max(sqrt(pulow(jl)**2+pvlow(jl)**2), gvsec)
892
9888768
        zwind = max(sqrt(zwind**2), gvsec)
893
9888768
        zdelp = paphm1(jl, jk+1) - paphm1(jl, jk)
894
9888768
        zstabm = sqrt(max(pstab(jl,jk),gssec))
895
9888768
        zstabp = sqrt(max(pstab(jl,jk+1),gssec))
896
9888768
        zrhom = prho(jl, jk)
897
9888768
        zrhop = prho(jl, jk+1)
898
        znup(jl) = znup(jl) + (zdelp/rg)*((zstabp/zrhop+zstabm/zrhom)/2.)/ &
899
9888768
          zwind
900

698087
        IF ((znum(jl)<=rpi/4.) .AND. (znup(jl)>rpi/4.) .AND. (kkcrith( &
901
267264
          jl)==klev)) kkcrith(jl) = jk
902
903
      END IF
904
905
    END DO
906
  END DO
907
908
573120
  DO jl = kidia, kfdia
909
573120
    IF (ktest(jl)==1) THEN
910
267264
      kkcrith(jl) = max0(kkcrith(jl), ilevh*2)
911
267264
      kkcrith(jl) = max0(kkcrith(jl), kknu(jl))
912
267264
      IF (kcrit(jl)>=kkcrith(jl)) kcrit(jl) = 1
913
    END IF
914
  END DO
915
916
  ! directional info for flow blocking *************************
917
918
23040
  DO jk = 1, klev
919
22352256
    DO jl = kidia, kfdia
920
22351680
      IF (ktest(jl)==1) THEN
921
2754132
        lo = (pum1(jl,jk)<gvsec) .AND. (pum1(jl,jk)>=-gvsec)
922
        IF (lo) THEN
923
62361
          zu = pum1(jl, jk) + 2.*gvsec
924
        ELSE
925
          zu = pum1(jl, jk)
926
        END IF
927
10423296
        zphi = atan(pvm1(jl,jk)/zu)
928
10423296
        ppsi(jl, jk) = ptheta(jl)*rpi/180. - zphi
929
      END IF
930
    END DO
931
  END DO
932
933
  ! forms the vertical 'leakiness' **************************
934
935
16128
  DO jk = ilevh, klev
936
15474816
    DO jl = kidia, kfdia
937
15474240
      IF (ktest(jl)==1) THEN
938
7216128
        pzdep(jl, jk) = 0
939

7216128
        IF (jk>=kkenvh(jl) .AND. kkenvh(jl)/=klev) THEN
940
          pzdep(jl, jk) = (pgeom1(jl,kkenvh(jl))-pgeom1(jl,jk))/ &
941
1865333
            (pgeom1(jl,kkenvh(jl))-pgeom1(jl,klev))
942
        END IF
943
      END IF
944
    END DO
945
  END DO
946
947
576
  RETURN
948
END SUBROUTINE orosetup_strato
949
576
SUBROUTINE gwstress_strato(nlon, nlev, kkcrit, ksect, kkhlim, ktest, kkcrith, &
950
576
    kcrit, kkenvh, kknu, prho, pstab, pvph, pstd, psig, pmea, ppic, pval, &
951
    ptfr, ptau, pgeom1, pgamma, pd1, pd2, pdmod, pnu)
952
953
  ! **** *gwstress*
954
955
  ! purpose.
956
  ! --------
957
  ! Compute the surface stress due to Gravity Waves, according
958
  ! to the Phillips (1979) theory of 3-D flow above
959
  ! anisotropic elliptic ridges.
960
961
  ! The stress is reduced two account for cut-off flow over
962
  ! hill.  The flow only see that part of the ridge located
963
  ! above the blocked layer (see zeff).
964
965
  ! **   interface.
966
  ! ----------
967
  ! call *gwstress*  from *gwdrag*
968
969
  ! explicit arguments :
970
  ! --------------------
971
  ! ==== inputs ===
972
  ! ==== outputs ===
973
974
  ! implicit arguments :   none
975
  ! --------------------
976
977
  ! method.
978
  ! -------
979
980
981
  ! externals.
982
  ! ----------
983
984
985
  ! reference.
986
  ! ----------
987
988
  ! LOTT and MILLER (1997)  &  LOTT (1999)
989
990
  ! author.
991
  ! -------
992
993
  ! modifications.
994
  ! --------------
995
  ! f. lott put the new gwd on ifs      22/11/93
996
997
  ! -----------------------------------------------------------------------
998



63917920
  USE dimphy
999
  IMPLICIT NONE
1000
1001
  include "YOMCST.h"
1002
  include "YOEGWD.h"
1003
1004
  ! -----------------------------------------------------------------------
1005
1006
  ! *       0.1   arguments
1007
  ! ---------
1008
1009
  INTEGER nlon, nlev
1010
  INTEGER kkcrit(nlon), kkcrith(nlon), kcrit(nlon), ksect(nlon), &
1011
    kkhlim(nlon), ktest(nlon), kkenvh(nlon), kknu(nlon)
1012
1013
  REAL prho(nlon, nlev+1), pstab(nlon, nlev+1), ptau(nlon, nlev+1), &
1014
    pvph(nlon, nlev+1), ptfr(nlon), pgeom1(nlon, nlev), pstd(nlon)
1015
1016
  REAL pd1(nlon), pd2(nlon), pnu(nlon), psig(nlon), pgamma(nlon)
1017
  REAL pmea(nlon), ppic(nlon), pval(nlon)
1018
  REAL pdmod(nlon)
1019
1020
  ! -----------------------------------------------------------------------
1021
1022
  ! *       0.2   local arrays
1023
  ! ------------
1024
  ! zeff--real: effective height seen by the flow when there is blocking
1025
1026
  INTEGER jl
1027
  REAL zeff
1028
1029
  ! -----------------------------------------------------------------------
1030
1031
  ! *       0.3   functions
1032
  ! ---------
1033
  ! ------------------------------------------------------------------
1034
1035
  ! *         1.    initialization
1036
  ! --------------
1037
1038
  ! PRINT *,' in gwstress'
1039
1040
  ! *         3.1     gravity wave stress.
1041
1042
1043
1044
573120
  DO jl = kidia, kfdia
1045
573120
    IF (ktest(jl)==1) THEN
1046
1047
      ! effective mountain height above the blocked flow
1048
1049
267264
      zeff = ppic(jl) - pval(jl)
1050
267264
      IF (kkenvh(jl)<klev) THEN
1051
266307
        zeff = amin1(gfrcrit*pvph(jl,klev+1)/sqrt(pstab(jl,klev+1)), zeff)
1052
      END IF
1053
1054
1055
      ptau(jl, klev+1) = gkdrag*prho(jl, klev+1)*psig(jl)*pdmod(jl)/4./ &
1056
267264
        pstd(jl)*pvph(jl, klev+1)*sqrt(pstab(jl,klev+1))*zeff**2
1057
1058
1059
      ! too small value of stress or  low level flow include critical level
1060
      ! or low level flow:  gravity wave stress nul.
1061
1062
      ! lo=(ptau(jl,klev+1).lt.gtsec).or.(kcrit(jl).ge.kknu(jl))
1063
      ! *      .or.(pvph(jl,klev+1).lt.gvcrit)
1064
      ! if(lo) ptau(jl,klev+1)=0.0
1065
1066
      ! print *,jl,ptau(jl,klev+1)
1067
1068
    ELSE
1069
1070
305280
      ptau(jl, klev+1) = 0.0
1071
1072
    END IF
1073
1074
  END DO
1075
1076
  ! write(21)(ptau(jl,klev+1),jl=kidia,kfdia)
1077
1078
576
  RETURN
1079
END SUBROUTINE gwstress_strato
1080
1081
576
SUBROUTINE gwprofil_strato(nlon, nlev, kgwd, kdx, ktest, kkcrit, kkcrith, &
1082
576
    kcrit, kkenvh, kknu, kknu2, paphm1, prho, pstab, ptfr, pvph, pri, ptau, &
1083
    pdmod, pnu, psig, pgamma, pstd, ppic, pval)
1084
1085
  ! **** *gwprofil*
1086
1087
  ! purpose.
1088
  ! --------
1089
1090
  ! **   interface.
1091
  ! ----------
1092
  ! from *gwdrag*
1093
1094
  ! explicit arguments :
1095
  ! --------------------
1096
  ! ==== inputs ===
1097
1098
  ! ==== outputs ===
1099
1100
  ! implicit arguments :   none
1101
  ! --------------------
1102
1103
  ! method:
1104
  ! -------
1105
  ! the stress profile for gravity waves is computed as follows:
1106
  ! it decreases linearly with heights from the ground
1107
  ! to the low-level indicated by kkcrith,
1108
  ! to simulates lee waves or
1109
  ! low-level gravity wave breaking.
1110
  ! above it is constant, except when the waves encounter a critical
1111
  ! level (kcrit) or when they break.
1112
  ! The stress is also uniformly distributed above the level
1113
  ! nstra.
1114
1115
267264
  USE dimphy
1116
  IMPLICIT NONE
1117
1118
  include "YOMCST.h"
1119
  include "YOEGWD.h"
1120
1121
  ! -----------------------------------------------------------------------
1122
1123
  ! *       0.1   ARGUMENTS
1124
  ! ---------
1125
1126
  INTEGER nlon, nlev, kgwd
1127
  INTEGER kkcrit(nlon), kkcrith(nlon), kcrit(nlon), kdx(nlon), ktest(nlon), &
1128
    kkenvh(nlon), kknu(nlon), kknu2(nlon)
1129
1130
  REAL paphm1(nlon, nlev+1), pstab(nlon, nlev+1), prho(nlon, nlev+1), &
1131
    pvph(nlon, nlev+1), pri(nlon, nlev+1), ptfr(nlon), ptau(nlon, nlev+1)
1132
1133
  REAL pdmod(nlon), pnu(nlon), psig(nlon), pgamma(nlon), pstd(nlon), &
1134
    ppic(nlon), pval(nlon)
1135
1136
  ! -----------------------------------------------------------------------
1137
1138
  ! *       0.2   local arrays
1139
  ! ------------
1140
1141
  INTEGER jl, jk
1142
  REAL zsqr, zalfa, zriw, zdel, zb, zalpha, zdz2n, zdelp, zdelpt
1143
1144
1152
  REAL zdz2(klon, klev), znorm(klon), zoro(klon)
1145
1152
  REAL ztau(klon, klev+1)
1146
1147
  ! -----------------------------------------------------------------------
1148
1149
  ! *         1.    INITIALIZATION
1150
  ! --------------
1151
1152
  ! print *,' entree gwprofil'
1153
1154
1155
  ! *    COMPUTATIONAL CONSTANTS.
1156
  ! ------------- ----------
1157
1158
573120
  DO jl = kidia, kfdia
1159
573120
    IF (ktest(jl)==1) THEN
1160
267264
      zoro(jl) = psig(jl)*pdmod(jl)/4./pstd(jl)
1161
267264
      ztau(jl, klev+1) = ptau(jl, klev+1)
1162
      ! print *,jl,ptau(jl,klev+1)
1163
267264
      ztau(jl, kkcrith(jl)) = grahilo*ptau(jl, klev+1)
1164
    END IF
1165
  END DO
1166
1167
1168
23616
  DO jk = klev + 1, 1, -1
1169
    ! *         4.1    constant shear stress until top of the
1170
    ! low-level breaking/trapped layer
1171
1172
22925376
    DO jl = kidia, kfdia
1173
22924800
      IF (ktest(jl)==1) THEN
1174
10690560
        IF (jk>kkcrith(jl)) THEN
1175
965351
          zdelp = paphm1(jl, jk) - paphm1(jl, klev+1)
1176
965351
          zdelpt = paphm1(jl, kkcrith(jl)) - paphm1(jl, klev+1)
1177
          ptau(jl, jk) = ztau(jl, klev+1) + zdelp/zdelpt*(ztau(jl,kkcrith(jl) &
1178
965351
            )-ztau(jl,klev+1))
1179
        ELSE
1180
9725209
          ptau(jl, jk) = ztau(jl, kkcrith(jl))
1181
        END IF
1182
      END IF
1183
    END DO
1184
1185
    ! *         4.15   constant shear stress until the top of the
1186
    ! low level flow layer.
1187
1188
1189
    ! *         4.2    wave displacement at next level.
1190
1191
1192
  END DO
1193
1194
1195
  ! *         4.4    wave richardson number, new wave displacement
1196
  ! *                and stress:  breaking evaluation and critical
1197
  ! level
1198
1199
1200
23040
  DO jk = klev, 1, -1
1201
1202
22351680
    DO jl = kidia, kfdia
1203
22351680
      IF (ktest(jl)==1) THEN
1204
10423296
        znorm(jl) = prho(jl, jk)*sqrt(pstab(jl,jk))*pvph(jl, jk)
1205
10423296
        zdz2(jl, jk) = ptau(jl, jk)/amax1(znorm(jl), gssec)/zoro(jl)
1206
      END IF
1207
    END DO
1208
1209
22352256
    DO jl = kidia, kfdia
1210
22351680
      IF (ktest(jl)==1) THEN
1211
10423296
        IF (jk<kkcrith(jl)) THEN
1212

9457945
          IF ((ptau(jl,jk+1)<gtsec) .OR. (jk<=kcrit(jl))) THEN
1213
4580593
            ptau(jl, jk) = 0.0
1214
          ELSE
1215
4877352
            zsqr = sqrt(pri(jl,jk))
1216
4877352
            zalfa = sqrt(pstab(jl,jk)*zdz2(jl,jk))/pvph(jl, jk)
1217
4877352
            zriw = pri(jl, jk)*(1.-zalfa)/(1+zalfa*zsqr)**2
1218
4877352
            IF (zriw<grcrit) THEN
1219
              ! print *,' breaking!!!',ptau(jl,jk)
1220
801697
              zdel = 4./zsqr/grcrit + 1./grcrit**2 + 4./grcrit
1221
801697
              zb = 1./grcrit + 2./zsqr
1222
801697
              zalpha = 0.5*(-zb+sqrt(zdel))
1223
801697
              zdz2n = (pvph(jl,jk)*zalpha)**2/pstab(jl, jk)
1224
801697
              ptau(jl, jk) = znorm(jl)*zdz2n*zoro(jl)
1225
            END IF
1226
1227
4877352
            ptau(jl, jk) = amin1(ptau(jl,jk), ptau(jl,jk+1))
1228
1229
          END IF
1230
        END IF
1231
      END IF
1232
    END DO
1233
  END DO
1234
1235
  ! REORGANISATION OF THE STRESS PROFILE AT LOW LEVEL
1236
1237
573120
  DO jl = kidia, kfdia
1238
573120
    IF (ktest(jl)==1) THEN
1239
267264
      ztau(jl, kkcrith(jl)-1) = ptau(jl, kkcrith(jl)-1)
1240
267264
      ztau(jl, nstra) = ptau(jl, nstra)
1241
    END IF
1242
  END DO
1243
1244
23040
  DO jk = 1, klev
1245
1246
22351680
    DO jl = kidia, kfdia
1247
22351680
      IF (ktest(jl)==1) THEN
1248
1249
10423296
        IF (jk>kkcrith(jl)-1) THEN
1250
1251
965351
          zdelp = paphm1(jl, jk) - paphm1(jl, klev+1)
1252
965351
          zdelpt = paphm1(jl, kkcrith(jl)-1) - paphm1(jl, klev+1)
1253
          ptau(jl, jk) = ztau(jl, klev+1) + (ztau(jl,kkcrith(jl)-1)-ztau(jl, &
1254
965351
            klev+1))*zdelp/zdelpt
1255
1256
        END IF
1257
      END IF
1258
1259
    END DO
1260
1261
    ! REORGANISATION AT THE MODEL TOP....
1262
1263
22352256
    DO jl = kidia, kfdia
1264
22351680
      IF (ktest(jl)==1) THEN
1265
1266
10423296
        IF (jk<nstra) THEN
1267
1268
          zdelp = paphm1(jl, nstra)
1269
          zdelpt = paphm1(jl, jk)
1270
          ptau(jl, jk) = ztau(jl, nstra)*zdelpt/zdelp
1271
          ! ptau(jl,jk)=ztau(jl,nstra)
1272
1273
        END IF
1274
1275
      END IF
1276
1277
    END DO
1278
1279
1280
  END DO
1281
1282
1283
123 FORMAT (I4, 1X, 20(F6.3,1X))
1284
1285
1286
576
  RETURN
1287
END SUBROUTINE gwprofil_strato
1288
22329504
SUBROUTINE lift_noro_strato(nlon, nlev, dtime, paprs, pplay, plat, pmea, &
1289
288
    pstd, psig, pgam, pthe, ppic, pval, kgwd, kdx, ktest, t, u, v, pulow, &
1290
288
    pvlow, pustr, pvstr, d_t, d_u, d_v)
1291
1292
  USE dimphy
1293
  IMPLICIT NONE
1294
  ! ======================================================================
1295
  ! Auteur(s): F.Lott (LMD/CNRS) date: 19950201
1296
  ! Object: Mountain lift interface (enhanced vortex stretching).
1297
  ! Made necessary because:
1298
  ! 1. in the LMD-GCM Layers are from bottom to top,
1299
  ! contrary to most European GCM.
1300
  ! 2. the altitude above ground of each model layers
1301
  ! needs to be known (variable zgeom)
1302
  ! ======================================================================
1303
  ! Explicit Arguments:
1304
  ! ==================
1305
  ! nlon----input-I-Total number of horizontal points that get into physics
1306
  ! nlev----input-I-Number of vertical levels
1307
  ! dtime---input-R-Time-step (s)
1308
  ! paprs---input-R-Pressure in semi layers    (Pa)
1309
  ! pplay---input-R-Pressure model-layers      (Pa)
1310
  ! t-------input-R-temperature (K)
1311
  ! u-------input-R-Horizontal wind (m/s)
1312
  ! v-------input-R-Meridional wind (m/s)
1313
  ! pmea----input-R-Mean Orography (m)
1314
  ! pstd----input-R-SSO standard deviation (m)
1315
  ! psig----input-R-SSO slope
1316
  ! pgam----input-R-SSO Anisotropy
1317
  ! pthe----input-R-SSO Angle
1318
  ! ppic----input-R-SSO Peacks elevation (m)
1319
  ! pval----input-R-SSO Valleys elevation (m)
1320
1321
  ! kgwd- -input-I: Total nb of points where the orography schemes are active
1322
  ! ktest--input-I: Flags to indicate active points
1323
  ! kdx----input-I: Locate the physical location of an active point.
1324
1325
  ! pulow, pvlow -output-R: Low-level wind
1326
  ! pustr, pvstr -output-R: Surface stress due to SSO drag      (Pa)
1327
1328
  ! d_t-----output-R: T increment
1329
  ! d_u-----output-R: U increment
1330
  ! d_v-----output-R: V increment
1331
1332
  ! Implicit Arguments:
1333
  ! ===================
1334
1335
  ! iim--common-I: Number of longitude intervals
1336
  ! jjm--common-I: Number of latitude intervals
1337
  ! klon-common-I: Number of points seen by the physics
1338
  ! (iim+1)*(jjm+1) for instance
1339
  ! klev-common-I: Number of vertical layers
1340
  ! ======================================================================
1341
  ! Local Variables:
1342
  ! ================
1343
1344
  ! zgeom-----R: Altitude of layer above ground
1345
  ! pt, pu, pv --R: t u v from top to bottom
1346
  ! pdtdt, pdudt, pdvdt --R: t u v tendencies (from top to bottom)
1347
  ! papmf: pressure at model layer (from top to bottom)
1348
  ! papmh: pressure at model 1/2 layer (from top to bottom)
1349
1350
  ! ======================================================================
1351
1352
  include "YOMCST.h"
1353
  include "YOEGWD.h"
1354
1355
  ! ARGUMENTS
1356
1357
  INTEGER nlon, nlev
1358
  REAL dtime
1359
  REAL paprs(klon, klev+1)
1360
  REAL pplay(klon, klev)
1361
  REAL plat(nlon), pmea(nlon)
1362
  REAL pstd(nlon), psig(nlon), pgam(nlon), pthe(nlon)
1363
  REAL ppic(nlon), pval(nlon)
1364
  REAL pulow(nlon), pvlow(nlon), pustr(nlon), pvstr(nlon)
1365
  REAL t(nlon, nlev), u(nlon, nlev), v(nlon, nlev)
1366
  REAL d_t(nlon, nlev), d_u(nlon, nlev), d_v(nlon, nlev)
1367
1368
  INTEGER i, k, kgwd, kdx(nlon), ktest(nlon)
1369
1370
  ! Variables locales:
1371
1372
576
  REAL zgeom(klon, klev)
1373
576
  REAL pdtdt(klon, klev), pdudt(klon, klev), pdvdt(klon, klev)
1374
576
  REAL pt(klon, klev), pu(klon, klev), pv(klon, klev)
1375
288
  REAL papmf(klon, klev), papmh(klon, klev+1)
1376
1377
  ! initialiser les variables de sortie (pour securite)
1378
1379
1380
  ! print *,'in lift_noro'
1381
286560
  DO i = 1, klon
1382
286272
    pulow(i) = 0.0
1383
286272
    pvlow(i) = 0.0
1384
286272
    pustr(i) = 0.0
1385
286560
    pvstr(i) = 0.0
1386
  END DO
1387
11520
  DO k = 1, klev
1388
11176128
    DO i = 1, klon
1389
11164608
      d_t(i, k) = 0.0
1390
11164608
      d_u(i, k) = 0.0
1391
11164608
      d_v(i, k) = 0.0
1392
11164608
      pdudt(i, k) = 0.0
1393
11164608
      pdvdt(i, k) = 0.0
1394
11175840
      pdtdt(i, k) = 0.0
1395
    END DO
1396
  END DO
1397
1398
  ! preparer les variables d'entree (attention: l'ordre des niveaux
1399
  ! verticaux augmente du haut vers le bas)
1400
1401
11520
  DO k = 1, klev
1402
11176128
    DO i = 1, klon
1403
11164608
      pt(i, k) = t(i, klev-k+1)
1404
11164608
      pu(i, k) = u(i, klev-k+1)
1405
11164608
      pv(i, k) = v(i, klev-k+1)
1406
11175840
      papmf(i, k) = pplay(i, klev-k+1)
1407
    END DO
1408
  END DO
1409
11808
  DO k = 1, klev + 1
1410
11462688
    DO i = 1, klon
1411
11462400
      papmh(i, k) = paprs(i, klev-k+2)
1412
    END DO
1413
  END DO
1414
286560
  DO i = 1, klon
1415
286560
    zgeom(i, klev) = rd*pt(i, klev)*log(papmh(i,klev+1)/papmf(i,klev))
1416
  END DO
1417
11232
  DO k = klev - 1, 1, -1
1418
10889568
    DO i = 1, klon
1419
      zgeom(i, k) = zgeom(i, k+1) + rd*(pt(i,k)+pt(i,k+1))/2.0*log(papmf(i,k+ &
1420
10889280
        1)/papmf(i,k))
1421
    END DO
1422
  END DO
1423
1424
  ! appeler la routine principale
1425
1426
1427
  CALL orolift_strato(klon, klev, kgwd, kdx, ktest, dtime, papmh, papmf, &
1428
    zgeom, pt, pu, pv, plat, pmea, pstd, psig, pgam, pthe, ppic, pval, pulow, &
1429
288
    pvlow, pdudt, pdvdt, pdtdt)
1430
1431
11520
  DO k = 1, klev
1432
11176128
    DO i = 1, klon
1433
11164608
      d_u(i, klev+1-k) = dtime*pdudt(i, k)
1434
11164608
      d_v(i, klev+1-k) = dtime*pdvdt(i, k)
1435
11164608
      d_t(i, klev+1-k) = dtime*pdtdt(i, k)
1436
11164608
      pustr(i) = pustr(i) + pdudt(i, k)*(papmh(i,k+1)-papmh(i,k))/rg
1437
11175840
      pvstr(i) = pvstr(i) + pdvdt(i, k)*(papmh(i,k+1)-papmh(i,k))/rg
1438
    END DO
1439
  END DO
1440
1441
  ! print *,' out lift_noro'
1442
1443
288
  RETURN
1444
END SUBROUTINE lift_noro_strato
1445
6574890
SUBROUTINE orolift_strato(nlon, nlev, kgwd, kdx, ktest, ptsphy, paphm1, &
1446
    papm1, pgeom1, ptm1, pum1, pvm1, plat, pmea, pstd, psig, pgam, pthe, &
1447
    ppic, pval &                   ! OUTPUTS
1448
288
    , pulow, pvlow, pvom, pvol, pte)
1449
1450
1451
  ! **** *OROLIFT: SIMULATE THE GEOSTROPHIC LIFT.
1452
1453
  ! PURPOSE.
1454
  ! --------
1455
  ! this routine computes the physical tendencies of the
1456
  ! prognostic variables u,v  when enhanced vortex stretching
1457
  ! is needed.
1458
1459
  ! **   INTERFACE.
1460
  ! ----------
1461
  ! CALLED FROM *lift_noro
1462
  ! explicit arguments :
1463
  ! --------------------
1464
  ! ==== inputs ===
1465
  ! nlon----input-I-Total number of horizontal points that get into physics
1466
  ! nlev----input-I-Number of vertical levels
1467
1468
  ! kgwd- -input-I: Total nb of points where the orography schemes are active
1469
  ! ktest--input-I: Flags to indicate active points
1470
  ! kdx----input-I: Locate the physical location of an active point.
1471
  ! ptsphy--input-R-Time-step (s)
1472
  ! paphm1--input-R: pressure at model 1/2 layer
1473
  ! papm1---input-R: pressure at model layer
1474
  ! pgeom1--input-R: Altitude of layer above ground
1475
  ! ptm1, pum1, pvm1--R-: t, u and v
1476
  ! pmea----input-R-Mean Orography (m)
1477
  ! pstd----input-R-SSO standard deviation (m)
1478
  ! psig----input-R-SSO slope
1479
  ! pgam----input-R-SSO Anisotropy
1480
  ! pthe----input-R-SSO Angle
1481
  ! ppic----input-R-SSO Peacks elevation (m)
1482
  ! pval----input-R-SSO Valleys elevation (m)
1483
  ! plat----input-R-Latitude (degree)
1484
1485
  ! ==== outputs ===
1486
  ! pulow, pvlow -output-R: Low-level wind
1487
1488
  ! pte -----output-R: T tendency
1489
  ! pvom-----output-R: U tendency
1490
  ! pvol-----output-R: V tendency
1491
1492
1493
  ! Implicit Arguments:
1494
  ! ===================
1495
1496
  ! klon-common-I: Number of points seen by the physics
1497
  ! klev-common-I: Number of vertical layers
1498
1499
1500
  ! ----------
1501
1502
  ! AUTHOR.
1503
  ! -------
1504
  ! F.LOTT  LMD 22/11/95
1505
1506
  USE dimphy
1507
  IMPLICIT NONE
1508
1509
1510
  include "YOMCST.h"
1511
  include "YOEGWD.h"
1512
  ! -----------------------------------------------------------------------
1513
1514
  ! *       0.1   ARGUMENTS
1515
  ! ---------
1516
1517
1518
  INTEGER nlon, nlev, kgwd
1519
  REAL ptsphy
1520
  REAL pte(nlon, nlev), pvol(nlon, nlev), pvom(nlon, nlev), pulow(nlon), &
1521
    pvlow(nlon)
1522
  REAL pum1(nlon, nlev), pvm1(nlon, nlev), ptm1(nlon, nlev), plat(nlon), &
1523
    pmea(nlon), pstd(nlon), psig(nlon), pgam(nlon), pthe(nlon), ppic(nlon), &
1524
    pval(nlon), pgeom1(nlon, nlev), papm1(nlon, nlev), paphm1(nlon, nlev+1)
1525
1526
  INTEGER kdx(nlon), ktest(nlon)
1527
  ! -----------------------------------------------------------------------
1528
1529
  ! *       0.2   local arrays
1530
1531
  INTEGER jl, ilevh, jk
1532
  REAL zhgeo, zdelp, zslow, zsqua, zscav, zbet
1533
  ! ------------
1534
576
  INTEGER iknub(klon), iknul(klon)
1535
576
  LOGICAL ll1(klon, klev+1)
1536
1537
576
  REAL ztau(klon, klev+1), ztav(klon, klev+1), zrho(klon, klev+1)
1538
576
  REAL zdudt(klon), zdvdt(klon)
1539
576
  REAL zhcrit(klon, klev)
1540
1541
  LOGICAL lifthigh
1542
  REAL zcons1, ztmst
1543
  CHARACTER (LEN=20) :: modname = 'orolift_strato'
1544
  CHARACTER (LEN=80) :: abort_message
1545
1546
1547
  ! -----------------------------------------------------------------------
1548
1549
  ! *         1.1  initialisations
1550
  ! ---------------
1551
1552
  lifthigh = .FALSE.
1553
1554

288
  IF (nlon/=klon .OR. nlev/=klev) THEN
1555
    abort_message = 'pb dimension'
1556
    CALL abort_physic(modname, abort_message, 1)
1557
  END IF
1558
288
  zcons1 = 1./rd
1559
288
  ztmst = ptsphy
1560
1561
286560
  DO jl = kidia, kfdia
1562
286272
    zrho(jl, klev+1) = 0.0
1563
286272
    pulow(jl) = 0.0
1564
286272
    pvlow(jl) = 0.0
1565
286272
    iknub(jl) = klev
1566
286272
    iknul(jl) = klev
1567
    ilevh = klev/3
1568
286272
    ll1(jl, klev+1) = .FALSE.
1569
11451168
    DO jk = 1, klev
1570
11164608
      pvom(jl, jk) = 0.0
1571
11164608
      pvol(jl, jk) = 0.0
1572
11450880
      pte(jl, jk) = 0.0
1573
    END DO
1574
  END DO
1575
1576
1577
  ! *         2.1     DEFINE LOW LEVEL WIND, PROJECT WINDS IN PLANE OF
1578
  ! *                 LOW LEVEL WIND, DETERMINE SECTOR IN WHICH TO TAKE
1579
  ! *                 THE VARIANCE AND SET INDICATOR FOR CRITICAL LEVELS.
1580
1581
1582
1583
11520
  DO jk = klev, 1, -1
1584
11176128
    DO jl = kidia, kfdia
1585
11175840
      IF (ktest(jl)==1) THEN
1586
5211648
        zhcrit(jl, jk) = amax1(ppic(jl)-pval(jl), 100.)
1587
5211648
        zhgeo = pgeom1(jl, jk)/rg
1588
5211648
        ll1(jl, jk) = (zhgeo>zhcrit(jl,jk))
1589
5211648
        IF (ll1(jl,jk) .NEQV. ll1(jl,jk+1)) THEN
1590
133632
          iknub(jl) = jk
1591
        END IF
1592
      END IF
1593
    END DO
1594
  END DO
1595
1596
1597
286560
  DO jl = kidia, kfdia
1598
286560
    IF (ktest(jl)==1) THEN
1599
133632
      iknub(jl) = max(iknub(jl), klev/2)
1600
133632
      iknul(jl) = max(iknul(jl), 2*klev/3)
1601
133632
      IF (iknub(jl)>nktopg) iknub(jl) = nktopg
1602
133632
      IF (iknub(jl)==nktopg) iknul(jl) = klev
1603
133632
      IF (iknub(jl)==iknul(jl)) iknub(jl) = iknul(jl) - 1
1604
    END IF
1605
  END DO
1606
1607
11232
  DO jk = klev, 2, -1
1608
10889568
    DO jl = kidia, kfdia
1609
10889280
      zrho(jl, jk) = 2.*paphm1(jl, jk)*zcons1/(ptm1(jl,jk)+ptm1(jl,jk-1))
1610
    END DO
1611
  END DO
1612
  ! print *,'  dans orolift: 223'
1613
1614
  ! ********************************************************************
1615
1616
  ! *     define low level flow
1617
  ! -------------------
1618
11520
  DO jk = klev, 1, -1
1619
11176128
    DO jl = kidia, kfdia
1620
11175840
      IF (ktest(jl)==1) THEN
1621

5211648
        IF (jk>=iknub(jl) .AND. jk<=iknul(jl)) THEN
1622
          pulow(jl) = pulow(jl) + pum1(jl, jk)*(paphm1(jl,jk+1)-paphm1(jl,jk) &
1623
1095402
            )
1624
          pvlow(jl) = pvlow(jl) + pvm1(jl, jk)*(paphm1(jl,jk+1)-paphm1(jl,jk) &
1625
1095402
            )
1626
          zrho(jl, klev+1) = zrho(jl, klev+1) + zrho(jl, jk)*(paphm1(jl,jk+1) &
1627
1095402
            -paphm1(jl,jk))
1628
        END IF
1629
      END IF
1630
    END DO
1631
  END DO
1632
286560
  DO jl = kidia, kfdia
1633
286560
    IF (ktest(jl)==1) THEN
1634
133632
      pulow(jl) = pulow(jl)/(paphm1(jl,iknul(jl)+1)-paphm1(jl,iknub(jl)))
1635
133632
      pvlow(jl) = pvlow(jl)/(paphm1(jl,iknul(jl)+1)-paphm1(jl,iknub(jl)))
1636
      zrho(jl, klev+1) = zrho(jl, klev+1)/(paphm1(jl,iknul(jl)+1)-paphm1(jl, &
1637
133632
        iknub(jl)))
1638
    END IF
1639
  END DO
1640
1641
  ! ***********************************************************
1642
1643
  ! *         3.      COMPUTE MOUNTAIN LIFT
1644
1645
1646
286560
  DO jl = kidia, kfdia
1647
286560
    IF (ktest(jl)==1) THEN
1648
      ztau(jl, klev+1) = -gklift*zrho(jl, klev+1)*2.*romega* & ! *
1649
                                                               ! (2*pstd(jl)+pmea(jl))*
1650
133632
        2*pstd(jl)*sin(rpi/180.*plat(jl))*pvlow(jl)
1651
      ztav(jl, klev+1) = gklift*zrho(jl, klev+1)*2.*romega* & ! *
1652
                                                              ! (2*pstd(jl)+pmea(jl))*
1653
133632
        2*pstd(jl)*sin(rpi/180.*plat(jl))*pulow(jl)
1654
    ELSE
1655
152640
      ztau(jl, klev+1) = 0.0
1656
152640
      ztav(jl, klev+1) = 0.0
1657
    END IF
1658
  END DO
1659
1660
  ! *         4.      COMPUTE LIFT PROFILE
1661
  ! *                 --------------------
1662
1663
1664
1665
11520
  DO jk = 1, klev
1666
11176128
    DO jl = kidia, kfdia
1667
11175840
      IF (ktest(jl)==1) THEN
1668
5211648
        ztau(jl, jk) = ztau(jl, klev+1)*paphm1(jl, jk)/paphm1(jl, klev+1)
1669
5211648
        ztav(jl, jk) = ztav(jl, klev+1)*paphm1(jl, jk)/paphm1(jl, klev+1)
1670
      ELSE
1671
5952960
        ztau(jl, jk) = 0.0
1672
5952960
        ztav(jl, jk) = 0.0
1673
      END IF
1674
    END DO
1675
  END DO
1676
1677
1678
  ! *         5.      COMPUTE TENDENCIES.
1679
  ! *                 -------------------
1680
  IF (lifthigh) THEN
1681
    ! EXPLICIT SOLUTION AT ALL LEVELS
1682
1683
    DO jk = 1, klev
1684
      DO jl = kidia, kfdia
1685
        IF (ktest(jl)==1) THEN
1686
          zdelp = paphm1(jl, jk+1) - paphm1(jl, jk)
1687
          zdudt(jl) = -rg*(ztau(jl,jk+1)-ztau(jl,jk))/zdelp
1688
          zdvdt(jl) = -rg*(ztav(jl,jk+1)-ztav(jl,jk))/zdelp
1689
        END IF
1690
      END DO
1691
    END DO
1692
1693
    ! PROJECT PERPENDICULARLY TO U NOT TO DESTROY ENERGY
1694
1695
    DO jk = 1, klev
1696
      DO jl = kidia, kfdia
1697
        IF (ktest(jl)==1) THEN
1698
1699
          zslow = sqrt(pulow(jl)**2+pvlow(jl)**2)
1700
          zsqua = amax1(sqrt(pum1(jl,jk)**2+pvm1(jl,jk)**2), gvsec)
1701
          zscav = -zdudt(jl)*pvm1(jl, jk) + zdvdt(jl)*pum1(jl, jk)
1702
          IF (zsqua>gvsec) THEN
1703
            pvom(jl, jk) = -zscav*pvm1(jl, jk)/zsqua**2
1704
            pvol(jl, jk) = zscav*pum1(jl, jk)/zsqua**2
1705
          ELSE
1706
            pvom(jl, jk) = 0.0
1707
            pvol(jl, jk) = 0.0
1708
          END IF
1709
          zsqua = sqrt(pum1(jl,jk)**2+pum1(jl,jk)**2)
1710
          IF (zsqua<zslow) THEN
1711
            pvom(jl, jk) = zsqua/zslow*pvom(jl, jk)
1712
            pvol(jl, jk) = zsqua/zslow*pvol(jl, jk)
1713
          END IF
1714
1715
        END IF
1716
      END DO
1717
    END DO
1718
1719
    ! 6.  LOW LEVEL LIFT, SEMI IMPLICIT:
1720
    ! ----------------------------------
1721
1722
  ELSE
1723
1724
286560
    DO jl = kidia, kfdia
1725
286560
      IF (ktest(jl)==1) THEN
1726
1229034
        DO jk = klev, iknub(jl), -1
1727
          zbet = gklift*2.*romega*sin(rpi/180.*plat(jl))*ztmst* &
1728
            (pgeom1(jl,iknub(jl)-1)-pgeom1(jl,jk))/ &
1729
1095402
            (pgeom1(jl,iknub(jl)-1)-pgeom1(jl,klev))
1730
1095402
          zdudt(jl) = -pum1(jl, jk)/ztmst/(1+zbet**2)
1731
1095402
          zdvdt(jl) = -pvm1(jl, jk)/ztmst/(1+zbet**2)
1732
1095402
          pvom(jl, jk) = zbet**2*zdudt(jl) - zbet*zdvdt(jl)
1733
1229034
          pvol(jl, jk) = zbet*zdudt(jl) + zbet**2*zdvdt(jl)
1734
        END DO
1735
      END IF
1736
    END DO
1737
1738
  END IF
1739
1740
  ! print *,' out orolift'
1741
1742
288
  RETURN
1743
END SUBROUTINE orolift_strato
1744
7
SUBROUTINE sugwd_strato(nlon, nlev, paprs, pplay)
1745
1746
1747
  ! **** *SUGWD* INITIALIZE COMMON YOEGWD CONTROLLING GRAVITY WAVE DRAG
1748
1749
  ! PURPOSE.
1750
  ! --------
1751
  ! INITIALIZE YOEGWD, THE COMMON THAT CONTROLS THE
1752
  ! GRAVITY WAVE DRAG PARAMETRIZATION.
1753
  ! VERY IMPORTANT:
1754
  ! ______________
1755
  ! THIS ROUTINE SET_UP THE "TUNABLE PARAMETERS" OF THE
1756
  ! VARIOUS SSO SCHEMES
1757
1758
  ! **   INTERFACE.
1759
  ! ----------
1760
  ! CALL *SUGWD* FROM *SUPHEC*
1761
  ! -----        ------
1762
1763
  ! EXPLICIT ARGUMENTS :
1764
  ! --------------------
1765
  ! PAPRS,PPLAY : Pressure at semi and full model levels
1766
  ! NLEV        : number of model levels
1767
  ! NLON        : number of points treated in the physics
1768
1769
  ! IMPLICIT ARGUMENTS :
1770
  ! --------------------
1771
  ! COMMON YOEGWD
1772
  ! -GFRCRIT-R:  Critical Non-dimensional mountain Height
1773
  ! (HNC in (1),    LOTT 1999)
1774
  ! -GKWAKE--R:  Bluff-body drag coefficient for low level wake
1775
  ! (Cd in (2),     LOTT 1999)
1776
  ! -GRCRIT--R:  Critical Richardson Number
1777
  ! (Ric, End of first column p791 of LOTT 1999)
1778
  ! -GKDRAG--R:  Gravity wave drag coefficient
1779
  ! (G in (3),      LOTT 1999)
1780
  ! -GKLIFT--R:  Mountain Lift coefficient
1781
  ! (Cl in (4),     LOTT 1999)
1782
  ! -GHMAX---R:  Not used
1783
  ! -GRAHILO-R:  Set-up the trapped waves fraction
1784
  ! (Beta , End of first column,  LOTT 1999)
1785
1786
  ! -GSIGCR--R:  Security value for blocked flow depth
1787
  ! -NKTOPG--I:  Security value for blocked flow level
1788
  ! -nstra----I:  An estimate to qualify the upper levels of
1789
  ! the model where one wants to impose strees
1790
  ! profiles
1791
  ! -GSSECC--R:  Security min value for low-level B-V frequency
1792
  ! -GTSEC---R:  Security min value for anisotropy and GW stress.
1793
  ! -GVSEC---R:  Security min value for ulow
1794
1795
1796
  ! METHOD.
1797
  ! -------
1798
  ! SEE DOCUMENTATION
1799
1800
  ! EXTERNALS.
1801
  ! ----------
1802
  ! NONE
1803
1804
  ! REFERENCE.
1805
  ! ----------
1806
  ! Lott, 1999: Alleviation of stationary biases in a GCM through...
1807
  ! Monthly Weather Review, 127, pp 788-801.
1808
1809
  ! AUTHOR.
1810
  ! -------
1811
  ! FRANCOIS LOTT        *LMD*
1812
1813
  ! MODIFICATIONS.
1814
  ! --------------
1815
  ! ORIGINAL : 90-01-01 (MARTIN MILLER, ECMWF)
1816
  ! LAST:  99-07-09     (FRANCOIS LOTT,LMD)
1817
  ! ------------------------------------------------------------------
1818
  USE dimphy
1819
  USE mod_phys_lmdz_para
1820
  USE mod_grid_phy_lmdz
1821
  USE geometry_mod
1822
  IMPLICIT NONE
1823
1824
  ! -----------------------------------------------------------------
1825
  include "YOEGWD.h"
1826
  ! ----------------------------------------------------------------
1827
1828
  ! ARGUMENTS
1829
  INTEGER nlon, nlev
1830
  REAL paprs(nlon, nlev+1)
1831
  REAL pplay(nlon, nlev)
1832
1833
  INTEGER jk
1834
  REAL zpr, ztop, zsigt, zpm1r
1835
  INTEGER :: cell,ij,nstra_tmp,nktopg_tmp
1836
  REAL :: current_dist, dist_min,dist_min_glo
1837
1838
  ! *       1.    SET THE VALUES OF THE PARAMETERS
1839
  ! --------------------------------
1840
1841
1842
1
  PRINT *, ' DANS SUGWD NLEV=', nlev
1843
1
  ghmax = 10000.
1844
1845
  zpr = 100000.
1846
  ZTOP=0.00005
1847
  zsigt = 0.94
1848
  ! old  ZPR=80000.
1849
  ! old  ZSIGT=0.85
1850
1851
1852
!ym Take the point at equator close to (0,0) coordinates.
1853
1
  dist_min=360
1854
1
  dist_min_glo=360.
1855
1
  cell=-1
1856
995
  DO ij=1,klon
1857
994
    current_dist=sqrt(longitude_deg(ij)**2+latitude_deg(ij)**2)
1858
994
    current_dist=current_dist*(1+(1e-10*ind_cell_glo(ij))/klon_glo) ! For point unicity
1859
995
    IF (dist_min>current_dist) THEN
1860
39
      dist_min=current_dist
1861
39
      cell=ij
1862
    ENDIF
1863
  ENDDO
1864
1865
  !PRINT *, 'SUGWD distmin cell=', dist_min,cell
1866
1
  CALL reduce_min(dist_min,dist_min_glo)
1867
1
  CALL bcast(dist_min_glo)
1868
1
  IF (dist_min/=dist_min_glo) cell=-1
1869
!ym in future find the point at equator close to (0,0) coordinates.
1870
1
  PRINT *, 'SUGWD distmin dist_min_glo cell=', dist_min,dist_min_glo,cell
1871
1872
1
  nktopg_tmp=nktopg
1873
1
  nstra_tmp=nstra
1874
1875
1
  IF (cell/=-1) THEN
1876
1877
    !print*,'SUGWD shape ',shape(pplay),cell+1
1878
1879
40
    DO jk = 1, nlev
1880
      !zpm1r = pplay(cell+1, jk)/paprs(cell+1, 1)
1881
39
      zpm1r = pplay(cell, jk)/paprs(cell, 1)
1882
39
      IF (zpm1r>=zsigt) THEN
1883
4
        nktopg_tmp = jk
1884
      END IF
1885
40
      IF (zpm1r>=ztop) THEN
1886
38
        nstra_tmp = jk
1887
      END IF
1888
    END DO
1889
  ELSE
1890
    nktopg_tmp=0
1891
    nstra_tmp=0
1892
  ENDIF
1893
1894
1
  CALL reduce_sum(nktopg_tmp,nktopg)
1895
1
  CALL bcast(nktopg)
1896
1
  CALL reduce_sum(nstra_tmp,nstra)
1897
1
  CALL bcast(nstra)
1898
1899
  ! inversion car dans orodrag on compte les niveaux a l'envers
1900
1
  nktopg = nlev - nktopg + 1
1901
1
  nstra = nlev - nstra
1902
1
  PRINT *, ' DANS SUGWD nktopg=', nktopg
1903
1
  PRINT *, ' DANS SUGWD nstra=', nstra
1904
1
  if (nstra == 0) call abort_physic("sugwd_strato", "no level in stratosphere", 1)
1905
1906
!  Valeurs lues dans les .def, ou attribues dans conf_phys
1907
  !gkdrag = 0.2
1908
  !grahilo = 0.1
1909
  !grcrit = 1.00
1910
  !gfrcrit = 0.70
1911
  !gkwake = 0.40
1912
  !gklift = 0.25
1913
1914
1
  gsigcr = 0.80 ! Top of low level flow
1915
1
  gvcrit = 0.1
1916
1917
1
  WRITE (UNIT=6, FMT='('' *** SSO essential constants ***'')')
1918
1
  WRITE (UNIT=6, FMT='('' *** SPECIFIED IN SUGWD ***'')')
1919
1
  WRITE (UNIT=6, FMT='('' Gravity wave ct '',E13.7,'' '')') gkdrag
1920
1
  WRITE (UNIT=6, FMT='('' Trapped/total wave dag '',E13.7,'' '')') grahilo
1921
1
  WRITE (UNIT=6, FMT='('' Critical Richardson   = '',E13.7,'' '')') grcrit
1922
1
  WRITE (UNIT=6, FMT='('' Critical Froude'',e13.7)') gfrcrit
1923
1
  WRITE (UNIT=6, FMT='('' Low level Wake bluff cte'',e13.7)') gkwake
1924
1
  WRITE (UNIT=6, FMT='('' Low level lift  cte'',e13.7)') gklift
1925
1926
  ! ----------------------------------------------------------------
1927
1928
  ! *       2.    SET VALUES OF SECURITY PARAMETERS
1929
  ! ---------------------------------
1930
1931
1932
1
  gvsec = 0.10
1933
1
  gssec = 0.0001
1934
1935
1
  gtsec = 0.00001
1936
1937
1
  RETURN
1938
END SUBROUTINE sugwd_strato