source: LMDZ5/trunk/libf/phylmd/rrtm/yomdyn.F90 @ 1992

Last change on this file since 1992 was 1990, checked in by Laurent Fairhead, 11 years ago

Corrections à la version r1989 pour permettre la compilation avec RRTM
Inclusion de la licence CeCILL_V2 pour RRTM

Changes to revision r1989 to enable RRTM code compilation
RRTM part put under CeCILL_V2 licence
  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
File size: 23.3 KB
Line 
1MODULE YOMDYN
2
3USE PARKIND1  ,ONLY : JPIM     ,JPRB
4
5IMPLICIT NONE
6
7SAVE
8
9!     -------------------------------------------------------------------------
10
11!*    Control variables for the DYNAMICS
12
13!=========== TIME STEPPING ====================================================
14
15! TSTEP   : length of the timestep in seconds
16! TDT     : For leap-frog scheme:
17!            2*TSTEP except at the first time step where it is TSTEP
18!           For a two-time level scheme (semi-Lagrangian), TDT is always TSTEP.
19! REPS1   : timefiltering constant applied to t-1
20! REPS2   : timefiltering constant applied to t+1
21! REPSM1  : timefiltering constant applied to t-1 (moisture vars.)
22! REPSM2  : timefiltering constant applied to t+1 (moisture vars.)
23! REPSP1  : timefiltering constant applied to t-1 for all surface fields
24
25REAL(KIND=JPRB) :: TSTEP
26REAL(KIND=JPRB) :: TDT
27REAL(KIND=JPRB) :: REPS1
28REAL(KIND=JPRB) :: REPS2
29REAL(KIND=JPRB) :: REPSM1
30REAL(KIND=JPRB) :: REPSM2
31REAL(KIND=JPRB) :: REPSP1
32
33!====== MAIN HORIZONTAL DIFFUSION SCHEME ======================================
34
35! * CHARACTERISTIC TIMES:
36! HDIRVOR  : for diffusion of vorticity.
37! HDIRDIV  : for diffusion of divergence.
38! HDIRT    : for diffusion of temperature.
39! HDIRQ    : for diffusion of humidity.
40! HDIRO3   : for diffusion of ozone.
41! HDIRPD   : for diffusion of pressure departure (non hydrostatic).
42! HDIRVD   : for diffusion of vertical divergence (non hydrostatic).
43! HDIRSP   : for diffusion of surface pressure.
44
45! * REVERSE OF CHARACTERISTIC TIMES:
46! HRDIRVOR  : for diffusion of vorticity.
47! HRDIRDIV  : for diffusion of divergence.
48! HRDIRT    : for diffusion of temperature.
49! HRDIRQ    : for diffusion of humidity.
50! HRDIRO3   : for diffusion of ozone.
51! HRDIRPD   : for diffusion of pressure departure (non hydrostatic).
52! HRDIRVD   : for diffusion of vertical divergence (non hydrostatic).
53! HRDIRSP   : for diffusion of surface pressure.
54
55! RRDXTAU  : overall intensity of HD
56! RDAMPVOR : local enhancing coefficient for diffusion of vorticity.
57! RDAMPDIV : local enhancing coefficient for diffusion of divergence.
58! RDAMPT   : local enhancing coefficient for diffusion of temperature.
59! RDAMPQ   : local enhancing coefficient for diffusion of humidity.
60! RDAMPO3  : local enhancing coefficient for diffusion of ozone.
61! RDAMPPD  : local enhancing coefficient for diffusion of pressure departure.
62! RDAMPVD  : local enhancing coefficient for diffusion of vertical divergence.
63! RDAMPSP  : local enhancing coefficient for diffusion of surface pressure.
64! LREPHD   : key to reproduce HD consistency:
65!            if TRUE the consistency of HDIR[x] is ensured, while namelist
66!                    values of RRDAMP[x] can be slightly modified;
67!            if FALSE the HD is driven exactly by RRDXTAU and RRDAMP[x]
68!                     but consistency of HDIR[x] is not guarranted
69! LNEWHD   : only for ECMWF: "new" or "historical" values of HD set-up
70
71! REXPDH   : order of the diffusion
72!            (exponent for the wavenumber dependency).
73! FRANDH   : threshold for the wavenumber dependency.
74! SLEVDH   : first threshold for the pressure dependency scaled by VP00.
75! SLEVDH2  : second threshold for the pressure dependency scaled by VP00.
76! SLEVDH3  : third threshold for the pressure dependency scaled by VP00
77!            (used to bound the vertical increase of diffusion in the
78!            upper stratosphere).
79! NSREFDH  : threshold for the truncation dependency.
80
81! * LEVEL AND WAVENUMBER DEPENDENT INVERSE CHARACTERISTIC TIMES:
82! RDIVOR   : for diffusion of vorticity.
83! RDIDIV   : for diffusion of divergence.
84! RDITG    : for diffusion of temperature.
85! RDIGFL   : for diffusion of GFL vars.
86! RDIPD    : for diffusion of pressure departure (NH).
87! RDIVD    : for diffusion of vertical divergence (NH).
88! RDISP    : for diffusion of surface pressure.
89
90! GMR      : coefficients for spectral multiplication by GM.
91! RDHI     : main horizontal diffusion operator used for stretched ARPEGE.
92
93! LSTRHD   : .T.: main horizontal diffusion operator adapted to stretched ARP.
94! HDTIME_STRHD: TDT (if not, the main horizontal diffusion operator
95!            used for stretched ARPEGE is recomputed).
96
97REAL(KIND=JPRB) :: HDIRVOR
98REAL(KIND=JPRB) :: HDIRDIV
99REAL(KIND=JPRB) :: HDIRT
100REAL(KIND=JPRB) :: HDIRQ
101REAL(KIND=JPRB) :: HDIRO3
102REAL(KIND=JPRB) :: HDIRPD
103REAL(KIND=JPRB) :: HDIRVD
104REAL(KIND=JPRB) :: HDIRSP
105REAL(KIND=JPRB) :: HRDIRVOR
106REAL(KIND=JPRB) :: HRDIRDIV
107REAL(KIND=JPRB) :: HRDIRT
108REAL(KIND=JPRB) :: HRDIRQ
109REAL(KIND=JPRB) :: HRDIRO3
110REAL(KIND=JPRB) :: HRDIRPD
111REAL(KIND=JPRB) :: HRDIRVD
112REAL(KIND=JPRB) :: HRDIRSP
113REAL(KIND=JPRB) :: RRDXTAU
114REAL(KIND=JPRB) :: RDAMPVOR
115REAL(KIND=JPRB) :: RDAMPDIV
116REAL(KIND=JPRB) :: RDAMPT
117REAL(KIND=JPRB) :: RDAMPQ
118REAL(KIND=JPRB) :: RDAMPO3
119REAL(KIND=JPRB) :: RDAMPPD
120REAL(KIND=JPRB) :: RDAMPVD
121REAL(KIND=JPRB) :: RDAMPSP
122LOGICAL :: LREPHD
123LOGICAL :: LNEWHD
124REAL(KIND=JPRB) :: REXPDH
125REAL(KIND=JPRB) :: FRANDH
126REAL(KIND=JPRB) :: SLEVDH
127REAL(KIND=JPRB) :: SLEVDH2
128REAL(KIND=JPRB) :: SLEVDH3
129INTEGER(KIND=JPIM) :: NSREFDH
130REAL(KIND=JPRB),ALLOCATABLE:: RDIVOR(:,:)
131REAL(KIND=JPRB),ALLOCATABLE:: RDIDIV(:,:)
132REAL(KIND=JPRB),ALLOCATABLE:: RDITG(:,:)
133REAL(KIND=JPRB),ALLOCATABLE:: RDIGFL(:,:,:)
134REAL(KIND=JPRB),ALLOCATABLE:: RDIPD(:,:)
135REAL(KIND=JPRB),ALLOCATABLE:: RDIVD(:,:)
136REAL(KIND=JPRB),ALLOCATABLE:: RDISP(:)
137REAL(KIND=JPRB),ALLOCATABLE:: GMR(:,:)
138REAL(KIND=JPRB),ALLOCATABLE:: RDHI(:,:,:)
139LOGICAL :: LSTRHD
140REAL(KIND=JPRB) :: HDTIME_STRHD
141
142!====== SEMI-LAGRANGIAN HORIZONTAL DIFFUSION SCHEME (SLHD) ====================
143
144! * FOR SLHD INTERPOLATIONS:
145! SLHDA   :    Scaling factor of the deformation in f(d) function
146!              (including the model resolution correction)
147! SLHDA0  :    Namelist variable allowing to compute SLHDA
148!              (scaling factor of the deformation in f(d) function
149!              without the model resolution correction)
150! SLHDB   :    Exponent of the deformation in f(d) function
151! SLHDD0  :    Treshold for deformation tensor enhancement
152! ALPHINT :    Limit for the interval of enhancing linear
153!              S-L interpolation by smoother (should be
154!              within the interval <0,0.5>)
155! GAMMAX  :    Maximum value for the Gamma function (the weight
156!              of the smoother for the diffusive S-L interpolator),
157!              including the timestep correction.
158! GAMMAX0 :    Namelist variable allowing to compute GAMMAX
159!              (maximum value for the Gamma function,
160!              without the timestep correction).
161! SLHDKMAX:    Maximum value for the Kappa function
162
163! * THE "HDS" CHARACTERISTIC TIMES (obsolete):
164! HDSRVOR : for diffusion of vorticity.
165! HDSRDIV : for diffusion of divergence.
166! HDSRVD  : for diffusion of vertical divergence (NH).
167
168! * REVERSE OF THE "HDS" CHARACTERISTIC TIMES:
169! HRDSRVOR : for diffusion of vorticity.
170! HRDSRDIV : for diffusion of divergence.
171! HRDSRVD  : for diffusion of vertical divergence (NH).
172
173! RDAMPVORS: local enhancing coefficient for HDS diffusion of vorticity
174! RDAMPDIVS: local enhancing coefficient for HDS diffusion of divergence
175! RDAMPVDS : local enhancing coefficient for HDS diffusion of vert. divergence
176! RDAMPHDS : ratio HRDSRDIV/HRDIRDIV.
177
178! REXPDHS  : order of the diffusion
179!            (exponent for the wavenumber dependency).
180! SLEVDHS  : first threshold for the pressure dependency scaled by VP00.
181! SLEVDHS2 : second threshold for the pressure dependency scaled by VP00.
182! SDRED    : variable modifying the vertical profile based on SLEVDH
183!            ( g(l) becomes g(l)-SDRED in the "main" diffusion).
184
185! * "HDS" LEVEL AND WAVENUMBER DEPENDENT INVERSE CHARACTERISTIC TIMES:
186! RDSVOR   : for diffusion of vorticity.
187! RDSDIV   : for diffusion of divergence.
188! RDSVD    : for diffusion of NH vertical divergence variable.
189! RDHS     : SLHD additional horizontal diffusion operator used for stretched ARPEGE.
190
191REAL(KIND=JPRB),ALLOCATABLE :: SLHDA(:)
192REAL(KIND=JPRB) :: SLHDA0
193REAL(KIND=JPRB) :: SLHDB
194REAL(KIND=JPRB),ALLOCATABLE :: SLHDD0(:)
195REAL(KIND=JPRB) :: ALPHINT
196REAL(KIND=JPRB) :: GAMMAX
197REAL(KIND=JPRB) :: GAMMAX0
198REAL(KIND=JPRB) :: SLHDKMAX
199REAL(KIND=JPRB) :: HDSRVOR
200REAL(KIND=JPRB) :: HDSRDIV
201REAL(KIND=JPRB) :: HDSRVD
202REAL(KIND=JPRB) :: HRDSRVOR
203REAL(KIND=JPRB) :: HRDSRDIV
204REAL(KIND=JPRB) :: HRDSRVD
205REAL(KIND=JPRB) :: RDAMPVORS
206REAL(KIND=JPRB) :: RDAMPDIVS
207REAL(KIND=JPRB) :: RDAMPVDS
208REAL(KIND=JPRB) :: RDAMPHDS
209REAL(KIND=JPRB) :: REXPDHS
210REAL(KIND=JPRB) :: SLEVDHS
211REAL(KIND=JPRB) :: SLEVDHS2
212REAL(KIND=JPRB) :: SDRED
213REAL(KIND=JPRB),ALLOCATABLE:: RDSVOR(:,:)
214REAL(KIND=JPRB),ALLOCATABLE:: RDSDIV(:,:)
215REAL(KIND=JPRB),ALLOCATABLE:: RDSVD(:,:)
216REAL(KIND=JPRB),ALLOCATABLE:: RDHS(:,:,:)
217
218!================== SPECTRAL ENHANCED DIFFUSION ===============================
219
220! LFREIN  : switch to use spectral "enhanced diffusion" (.TRUE. if active)
221! LFREINF : same as LFREIN but computed only at STEPO 0 of non-linear run
222! LCHDIF  : change diffusion coefficients if LFREINF
223! FLCCRI  : critical value of CFL criterion
224! RFREIN  : constant for spectral "enhanced diffusion".
225
226LOGICAL :: LFREIN
227LOGICAL :: LFREINF
228LOGICAL :: LCHDIF
229REAL(KIND=JPRB) :: FLCCRI
230REAL(KIND=JPRB) :: RFREIN
231
232!======  QUANTITIES TO CHANGE THE VARIABLE IN THE T-EQN =======================
233
234! RCORDIT(NFLEVG)    : correction term at full-levels for diffusion of T.
235! RCORDIH(0:NFLEVG)  : correction term at half-levels for SL T-eqn if RCMSMP0/=0
236! RCORDIF(NFLEVG)    : correction term at full-levels for SL T-eqn if RCMSMP0/=0
237
238REAL(KIND=JPRB),ALLOCATABLE:: RCORDIT(:)
239REAL(KIND=JPRB),ALLOCATABLE:: RCORDIH(:)
240REAL(KIND=JPRB),ALLOCATABLE:: RCORDIF(:)
241
242!==== MAXIMUM V-WINDS ALLOWED IN THE SEMI-LAGRANGIAN MODEL ====================
243
244! VMAX1   : if V>VMAX1 (SM) or SQRT(U**2+V**2)>VMAX1 (DM),
245!           warning in the SL scheme.
246! VMAX2   : if V>VMAX2 (SM) or SQRT(U**2+V**2)>VMAX2 (DM),
247!           abort in the SL scheme.
248
249REAL(KIND=JPRB) :: VMAX1
250REAL(KIND=JPRB) :: VMAX2
251
252!================== DELTA FORMULATION =========================================
253
254! NDLNPR : NDLNPR=0: conventional formulation of delta, i.e. ln(P(l)/P(l-1)).
255!          NDLNPR=1: formulation of delta used in non hydrostatic model,
256!                    i.e. (P(l)-P(l-1))/SQRT(P(l)*P(l-1)).
257
258INTEGER(KIND=JPIM) :: NDLNPR
259
260!==== RAYLEIGH FRICTION =======================================================
261
262! RKRF(NFLEVG) : coefficient of Rayleigh friction
263
264REAL(KIND=JPRB),ALLOCATABLE:: RKRF(:)
265 
266!==== VERTICAL FILTER ========================================================
267
268! LVERFLT : switch to use filter in the vertical
269! REPSVFVO: coefficient for 2-del-eta vertical filter on vorticity
270! REPSVFDI: coefficient for 2-del-eta vertical filter on divergence
271! NLEVVF  : vertical filter applied for levs 1 to NLEVVF
272! LVERAVE_HLUV: switch to filter (vertically) the half-level wind
273!               which is computed in routine GPHLUV.
274
275LOGICAL :: LVERFLT
276REAL(KIND=JPRB) :: REPSVFVO
277REAL(KIND=JPRB) :: REPSVFDI
278INTEGER(KIND=JPIM) :: NLEVVF
279LOGICAL :: LVERAVE_HLUV
280
281!==== UPPER RADIATIVE BOUNDARY CONDITION ======================================
282
283! RHYDR0 - upper boundary contition for hydrostatic
284! RTEMRB - tuning temperature for upper radiative b. c. (LRUBC)
285! NRUBC   : control of radiative upper boundary condition :
286!           =0 <=> non computation
287!           =1 <=> computation on the forecast field
288!           =2 <=> computation on the departure of the forecast from the coupling field
289
290REAL(KIND=JPRB) :: RHYDR0
291REAL(KIND=JPRB) :: RTEMRB
292INTEGER(KIND=JPIM) :: NRUBC
293
294!==== SEMI-IMPLICIT SCHEME, VERTICAL EIGENMODES, PC SCHEMES ===================
295
296! LSIDG   : .F.: Semi-implicit-scheme with reduced divergence.
297!           .T.: Semi-implicit scheme with not reduced divergence.
298
299! BETADT  : coefficient for the semi-implicit treatment of divergence,
300!           temperature, continuity (and NH if required) equations.
301! REFGEO  : reference geopotentiel for shallow-water model.
302! SIPR    : reference surface pressure.
303! SITR    : reference temperature.
304! SITRA   : acoustic reference temperature.
305! SITRUB : ref. temper. for SI corr. of temper.(for LRUBC=.T.)
306! SIPRUB : coef. for SI corr. of surf. press.  (for LRUBC=.T.)
307! SITIME  : =TDT (if not, Helmholtz matrices are recomputed in CNT4).
308! SIRPRG  : auxiliary variable for SIGAM,SIGAMA.
309! SIRPRN  : auxiliary variable for SITNU,SITNUA
310! NSITER  : number of iterations to treat the non linear semi-implicit terms
311!           in the non-hydrostatic scheme.
312! NCURRENT_ITER : for LNHDYN with PC scheme - current iteration:
313!                   0                 - predictor
314!                   1, 2, ..., NSITER - correctors
315! LRHDI_LASTITERPC: T (resp. F): when a PC scheme is activated (for example
316!  LPC_FULL=.T.), the horizontal diffusion is done at the last iteration
317!  of the corrector step (resp. all iterations of the predictor-corrector
318!  scheme).
319
320! * PRESSURES LINKED TO A REFERENCE PRESSURE = SIPR
321! SIALPH(NFLEVG)  : coefficients "alpha" of hydrostatics.
322! SILNPR(NFLEVG)  : Log of ratio of pressures between levels.
323! SIDELP(NFLEVG)  : pressure differences across layers.
324! SIRDEL(NFLEVG)  : their inverse.
325! SITLAH(0:NFLEVG): half-level pressures.
326! SITLAF(NFLEVG)  : full-level pressures.
327! SIDPHI(NFLEVG)  : geopotential differences across layers.
328
329! SCGMAP((NSMAX+1)*(NSMAX+2)/2,3): coefficients for multiplication by (GM**2)
330!                                  in spectral space.
331! SIB(NFLEVG,NFLEVG)   : operator "B" of the SI scheme (DIV ===> DP/DT=B.DIV).
332! SIMO(NFLEVG,NFLEVG)  : eigenvectors of "B".
333! SIMI(NFLEVG,NFLEVG)  : SIMO**-1
334! SIVP(NFLEVG)         : eigenvalues of "B".
335! SIHEG(NFLEVG,(NSMAX+1)*(NSMAX+2)/2,3), SIHEG2(NFLEVG,NSMAX+1,2:3):
336!  Helmholtz operator in case of SI computations with not reduced divergence.
337! SIHEGB(NFLEVG,(NSMAX+1)*(NSMAX+2)/2,3), SIHEGB2(NFLEVG,NSMAX+1,2:3):
338!  Additional operators in case of LSIDG=T SI computations in the NH model.
339! SITRICA(NSMAX,NFLEVG):   )  coefficients used in tridiagonal solver
340! SITRICB(NSMAX,NFLEVG):   )  for the vertically-coupled semi-implicit
341! SITRICC(NSMAX,NFLEVG):   )  equations (case LSITRIC=T).
342
343! SIRUB(0:NFLEVG)             :  Kernel of the operator
344!                  SIGAM    SITNU
345!           (T,ps) -----> P -----> (T,ps)
346!  0 is for surface pressure (or its log)
347!  1 to NFLEVG is for temperature
348!                               t
349! S2ETA(NFLEVG)              : S S SIRUB, where S is a Laplacian operator
350!    used to eliminate the 2 delta eta wave in the vertical temperature field
351
352! SIFAC : [ 1 - beta**2 (Delta t)**2 C**2 (SITR/SITRA) (LLstar/H**2) ]
353!         for NH model.
354! SIFACI: [ 1 - beta**2 (Delta t)**2 C**2 (SITR/SITRA) (LLstar/H**2) ]**(-1)
355!         for NH model.
356
357! VNORM : constant for new scaling.
358
359LOGICAL :: LSIDG
360REAL(KIND=JPRB) :: BETADT
361REAL(KIND=JPRB) :: REFGEO
362REAL(KIND=JPRB) :: SIPR
363REAL(KIND=JPRB) :: SITR
364REAL(KIND=JPRB) :: SITRA
365REAL(KIND=JPRB) :: SITRUB
366REAL(KIND=JPRB) :: SIPRUB
367REAL(KIND=JPRB) :: SITIME
368REAL(KIND=JPRB) :: SIRPRG
369REAL(KIND=JPRB) :: SIRPRN
370INTEGER(KIND=JPIM) :: NSITER
371INTEGER(KIND=JPIM) :: NCURRENT_ITER
372LOGICAL :: LRHDI_LASTITERPC
373
374REAL(KIND=JPRB),ALLOCATABLE:: SIALPH(:)
375REAL(KIND=JPRB),ALLOCATABLE:: SILNPR(:)
376REAL(KIND=JPRB),ALLOCATABLE:: SIDELP(:)
377REAL(KIND=JPRB),ALLOCATABLE:: SIRDEL(:)
378REAL(KIND=JPRB),ALLOCATABLE:: SITLAH(:)
379REAL(KIND=JPRB),ALLOCATABLE:: SITLAF(:)
380REAL(KIND=JPRB),ALLOCATABLE:: SIDPHI(:)
381REAL(KIND=JPRB),ALLOCATABLE:: SCGMAP(:,:)
382REAL(KIND=JPRB),ALLOCATABLE:: SIB(:,:)
383REAL(KIND=JPRB),ALLOCATABLE:: SIMO(:,:)
384REAL(KIND=JPRB),ALLOCATABLE:: SIMI(:,:)
385REAL(KIND=JPRB),ALLOCATABLE:: SIVP(:)
386REAL(KIND=JPRB),ALLOCATABLE:: SIHEG(:,:,:)
387REAL(KIND=JPRB),ALLOCATABLE:: SIHEG2(:,:,:)
388REAL(KIND=JPRB),ALLOCATABLE:: SIHEGB(:,:,:)
389REAL(KIND=JPRB),ALLOCATABLE:: SIHEGB2(:,:,:)
390REAL(KIND=JPRB),ALLOCATABLE:: SITRICA(:,:)
391REAL(KIND=JPRB),ALLOCATABLE:: SITRICB(:,:)
392REAL(KIND=JPRB),ALLOCATABLE:: SITRICC(:,:)
393REAL(KIND=JPRB),ALLOCATABLE:: SIRUB(:)
394REAL(KIND=JPRB),ALLOCATABLE:: S2ETA(:)
395REAL(KIND=JPRB),ALLOCATABLE:: SIFAC(:,:)
396REAL(KIND=JPRB),ALLOCATABLE:: SIFACI(:,:)
397REAL(KIND=JPRB) :: VNORM
398
399!=========== SEMI-LAGRANGIAN SWITCHES AND WEIGHTS =============================
400!=========== + ADDITIONAL "ADVECTION" SWITCHES ALSO USED IN EULERIAN ==========
401
402! * Switches NxLAG:
403! NVLAG   :  switch for formulation or discretisation of continuity equation.
404! NWLAG   :  switch for formulation or discretisation of momentum equations.
405! NTLAG   :  switch for formulation or discretisation of temperature equation.
406! NSPDLAG :  switch for formulation or discretisation of P-hat equation.
407! NSVDLAG :  switch for formulation or discretisation of d-hat equation.
408! Remarks about NxLAG:
409! a) possible value for NxLAG:
410!    NxLAG=1 -> interpolation of R.H.S. of the corresponding eq.
411!               to the middle of the trajectory
412!    NxLAG=2 -> averaging of R.H.S. of the corresponding eq.
413!               along the trajectory with the part corresponding
414!               to the departure point added to the t-dt term
415!    NxLAG=3 -> averaging of R.H.S. of the corresponding eq.
416!               along the trajectory with the part corresponding
417!               to the departure point interpolated linearly
418! c) For NVLAG and 2D model:
419!    NVLAG>0 stands for the conventional formulation of continuity equation.
420!    NVLAG<0 stands for the Lagrangian formulation of continuity equation:
421!     in this case the remark a) is valid for ABS(NVLAG).
422
423! * Research of semi-Lagrangian trajectory:
424! NITMP   : Number of iterations for computing the medium point of the
425!           semi-lagrangian trajectory.
426! VETAON  : VETAON*eta(layer nr 1)+(1.-VETAON)*eta(top) is the lower
427!           value allowed for ETA of the origin/anterior point in
428!           the 3D model.
429! VETAOX  : VETAOX*eta(bottom layer)+(1.-VETAOX)*eta(ground) is the
430!           upper value allowed for ETA of the origin/anterior point
431!           in the 3D model.
432! LSETTLS : type of extrapolations needed in the algorithm of trajectory
433!           research in the 2TL SL scheme.
434!           .F.: linear extrapolations (conventional algorithm).
435!           .T.: stable extrapolations combining spatio-temporal extrapolations.
436! LELTRA  : if TRUE then use "elegant" algorithm to find departure point
437!           (only applicable in 2TL scheme for the shallow-water equations)
438! RW2TLFF : when computing the refined position of the origin point for
439!           Coriolis term, the new wind used is:
440!           0.5*RW2TLFF*(V(F)+V(O)) + (1-RW2TLFF)*V(M)
441
442! * Uncentering factor in the semi-Lagrangian scheme:
443! VESL    : first order uncentering factor applied to non linear and linear
444!           terms.
445! XIDT    : pseudo-second order uncentering factor applied to linear terms,
446!           when an alternative second-order averaging is required in the
447!           2TL SL scheme.
448! LPC_XIDT: pseudo second order decentering in LPC_FULL PC scheme
449!           key used to allocate special buffer for needed quantities
450!           to transfer informations from predictor to corrector.
451
452! * Switches for use of quasi-monotone interpolations:
453! LQMW    :  Use quasi-monotone three-dimensional interpolations for wind
454! LQMHW   :  Use quasi-monotone interpolations in the horizontal for wind
455! LQMT    :  Use quasi-monotone three-dimensional interpolations for temperature
456! LQMHT   :  Use quasi-monotone interpolations in the horizontal for temperature
457! LQMP    :  Use quasi-monotone three-dimensional interpolations for cont. eq
458! LQMHP   :  Use quasi-monotone interpolations in the horizontal for cont. eq
459! LQMPD   :  Use quasi-monotone three-dimensional interpolations for P-hat eqn.
460! LQMHPD  :  Use quasi-monotone interpolations in the horizontal for P-hat eqn.
461! LQMVD   :  Use quasi-monotone three-dimensional interpolations for d-hat eqn.
462! LQMHVD  :  Use quasi-monotone interpolations in the horizontal for d-hat eqn.
463
464! * Switches for use of spline interpolations:
465! LRSPLINE_W   : Use of spline for wind
466! LRSPLINE_T   : Use of spline for temperature
467! LRSPLINE_P   : Use of spline for continuity equation
468! LRSPLINE_SPD : Use of spline for pressure departure
469! LRSPLINE_SVD : Use of spline for vertical divergence
470
471
472! * Treatment of Coriolis term:
473! LADVF   : if TRUE then use "advective" treatment of Coriolis terms (SL);
474!           in this case 2*Omega*Vec*r is computed analytically.
475! LIMPF   : if TRUE then use implicit treatment of Coriolis terms (EUL and SL)
476! L2TLFF  : if TRUE then use refined treatment of Coriolis term in 2TLSL scheme
477!           (can be currently used also with the 3TL SL vertical interpolating
478!           scheme).
479
480! * Change variable with an Eulerian treatment of orography:
481! RCMSLP0 : Real for tuning of the Tanguay/Ritchie correction in SL continuity
482!           and temperature equations for 3D model.
483
484! * Treatment of MF simplified physics in the semi-Lagrangian TL and AD codes.
485
486! LSL_UNLPHY_F : if TRUE diabatic terms are evaluated at the final point F.
487!                if FALSE diabatic terms are evaluated at the orig point O.
488!                Remark: this variable is involved only in MF physics.
489
490! * Switch for computation of Moisture Convergence for French deep convection scheme
491
492! NCOMP_CVGQ   :  0 ==> Compute the CVGQ in an Eulerian manner, using spectral
493!                       moisture stored in the YQ GFL variable.
494!                       In this case YQ must be spectral and
495!                       horizontal derivatives are used.
496!                 1 ==> Compute the CVGQ in an Eulerian manner, using spectral
497!                       moisture stored in the YCVGQ GFL spectral variable and
498!                       its horizontal derivatives.
499!                       This case is well designed for the case where YQ is
500!                       a purely grid-point GFL.
501!                 2 ==> Compute the CVGQ in a semi-Lagrangian manner
502!                       (Lagrangian tendency - Eulerian tendency), using data
503!                       stored in the YCVGQ grid-point variable.
504!                       This case is well designed for the case where YQ is
505!                       a purely grid-point GFL, and where LSLAG=T.
506! remark ky: better to move this variable in SUDYNA/NAMDYNA/YOMDYNA in the
507!  future to make it available in SUDIM1 when reading NAMGFL.
508
509INTEGER(KIND=JPIM) :: NVLAG
510INTEGER(KIND=JPIM) :: NWLAG
511INTEGER(KIND=JPIM) :: NTLAG
512INTEGER(KIND=JPIM) :: NSPDLAG
513INTEGER(KIND=JPIM) :: NSVDLAG
514INTEGER(KIND=JPIM) :: NITMP
515REAL(KIND=JPRB) :: VETAON
516REAL(KIND=JPRB) :: VETAOX
517LOGICAL :: LSETTLS
518LOGICAL :: LELTRA
519REAL(KIND=JPRB) :: RW2TLFF
520REAL(KIND=JPRB) :: VESL
521REAL(KIND=JPRB) :: XIDT
522LOGICAL ::  LPC_XIDT
523LOGICAL :: LQMW
524LOGICAL :: LQMHW
525LOGICAL :: LQMT
526LOGICAL :: LQMHT
527LOGICAL :: LQMP
528LOGICAL :: LQMHP
529LOGICAL :: LQMPD
530LOGICAL :: LQMHPD
531LOGICAL :: LQMVD
532LOGICAL :: LQMHVD
533LOGICAL :: LADVF
534LOGICAL :: LRSPLINE_W
535LOGICAL :: LRSPLINE_T
536LOGICAL :: LRSPLINE_P
537LOGICAL :: LRSPLINE_SPD
538LOGICAL :: LRSPLINE_SVD
539LOGICAL :: LIMPF
540LOGICAL :: L2TLFF
541REAL(KIND=JPRB) :: RCMSLP0
542LOGICAL :: LSL_UNLPHY_F
543INTEGER(KIND=JPIM) :: NCOMP_CVGQ
544
545!=========== RELAXATION OF THIN LAYER HYPOTHESIS ==============================
546! (for more details about "rs", "Ts" see routines gpvcrs.F90 and gpvcts.F90)
547
548! VCPR    : reference pressure (the pressure layer where "rs=a")
549! VCTR    : reference temperature (VCTR=Ts(pressure=VCPR))
550! VCAK    : coefficient alpha_K used in tha analytic formula of "Ts".
551! LADVFW  : as LADVF but for term "-2 Omega vec W k".
552
553REAL(KIND=JPRB) :: VCPR
554REAL(KIND=JPRB) :: VCTR
555REAL(KIND=JPRB) :: VCAK
556LOGICAL :: LADVFW
557
558!     ------------------------------------------------------------------
559! LDRY_ECMWF     : .TRUE.  = COMPUTE Cp, R AND R/Cp WITHOUT Q REALTED TERMS
560! LDRY_ECMWF     : .FALSE. = COMPUTE Cp, R AND R/Cp WITH    Q REALTED TERMS
561
562LOGICAL :: LDRY_ECMWF
563
564!     ------------------------------------------------------------------
565END MODULE YOMDYN
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