source: LMDZ6/trunk/libf/phylmd/climb_hq_mod.F90 @ 3774

Last change on this file since 3774 was 3102, checked in by oboucher, 7 years ago

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    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
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1MODULE climb_hq_mod
2!
3! Module to solve the verctical diffusion of "q" and "H";
4! specific humidity and potential energi.
5!
6  USE dimphy
7
8  IMPLICIT NONE
9  SAVE
10  PRIVATE
11  PUBLIC :: climb_hq_down, climb_hq_up, d_h_col_vdf, f_h_bnd
12
13  REAL, DIMENSION(:,:), ALLOCATABLE :: gamaq, gamah
14  !$OMP THREADPRIVATE(gamaq,gamah)
15  REAL, DIMENSION(:,:), ALLOCATABLE :: Ccoef_Q, Dcoef_Q
16  !$OMP THREADPRIVATE(Ccoef_Q, Dcoef_Q)
17  REAL, DIMENSION(:,:), ALLOCATABLE :: Ccoef_H, Dcoef_H
18  !$OMP THREADPRIVATE(Ccoef_H, Dcoef_H)
19  REAL, DIMENSION(:), ALLOCATABLE   :: Acoef_Q, Bcoef_Q
20  !$OMP THREADPRIVATE(Acoef_Q, Bcoef_Q)
21  REAL, DIMENSION(:), ALLOCATABLE   :: Acoef_H, Bcoef_H
22  !$OMP THREADPRIVATE(Acoef_H, Bcoef_H)
23  REAL, DIMENSION(:,:), ALLOCATABLE :: Kcoefhq
24  !$OMP THREADPRIVATE(Kcoefhq)
25  REAL, SAVE, DIMENSION(:,:), ALLOCATABLE :: h_old ! for diagnostics, h before solving diffusion
26  !$OMP THREADPRIVATE(h_old)
27  REAL, SAVE, DIMENSION(:), ALLOCATABLE :: d_h_col_vdf ! for diagnostics, vertical integral of enthalpy change
28  !$OMP THREADPRIVATE(d_h_col_vdf)
29  REAL, SAVE, DIMENSION(:), ALLOCATABLE :: f_h_bnd ! for diagnostics, enthalpy flux at surface
30  !$OMP THREADPRIVATE(f_h_bnd)
31
32CONTAINS
33!
34!****************************************************************************************
35!
36  SUBROUTINE climb_hq_down(knon, coefhq, paprs, pplay, &
37       delp, temp, q, dtime, &
38!!! nrlmd le 02/05/2011
39       Ccoef_H_out, Ccoef_Q_out, Dcoef_H_out, Dcoef_Q_out, &
40       Kcoef_hq_out, gama_q_out, gama_h_out, &
41!!!
42       Acoef_H_out, Acoef_Q_out, Bcoef_H_out, Bcoef_Q_out)
43
44! This routine calculates recursivly the coefficients C and D
45! for the quantity X=[Q,H] in equation X(k) = C(k) + D(k)*X(k-1), where k is
46! the index of the vertical layer.
47!
48! Input arguments
49!****************************************************************************************
50    INTEGER, INTENT(IN)                      :: knon
51    REAL, DIMENSION(klon,klev), INTENT(IN)   :: coefhq
52    REAL, DIMENSION(klon,klev), INTENT(IN)   :: pplay
53    REAL, DIMENSION(klon,klev+1), INTENT(IN) :: paprs
54    REAL, DIMENSION(klon,klev), INTENT(IN)   :: temp, delp  ! temperature
55    REAL, DIMENSION(klon,klev), INTENT(IN)   :: q
56    REAL, INTENT(IN)                         :: dtime
57
58! Output arguments
59!****************************************************************************************
60    REAL, DIMENSION(klon), INTENT(OUT)       :: Acoef_H_out
61    REAL, DIMENSION(klon), INTENT(OUT)       :: Acoef_Q_out
62    REAL, DIMENSION(klon), INTENT(OUT)       :: Bcoef_H_out
63    REAL, DIMENSION(klon), INTENT(OUT)       :: Bcoef_Q_out
64
65!!! nrlmd le 02/05/2011
66    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: Ccoef_H_out
67    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: Ccoef_Q_out
68    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: Dcoef_H_out
69    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: Dcoef_Q_out
70    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: Kcoef_hq_out
71    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: gama_q_out
72    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: gama_h_out
73!!!
74
75! Local variables
76!****************************************************************************************
77    LOGICAL, SAVE                            :: first=.TRUE.
78    !$OMP THREADPRIVATE(first)
79! JLD now renamed h_old and declared in module
80!    REAL, DIMENSION(klon,klev)               :: local_H
81    REAL, DIMENSION(klon)                    :: psref
82    REAL                                     :: delz, pkh
83    INTEGER                                  :: k, i, ierr
84! Include
85!****************************************************************************************
86    INCLUDE "YOMCST.h"
87    INCLUDE "compbl.h"   
88
89
90!****************************************************************************************
91! 1)
92! Allocation at first time step only
93!   
94!****************************************************************************************
95
96    IF (first) THEN
97       first=.FALSE.
98       ALLOCATE(Ccoef_Q(klon,klev), STAT=ierr)
99       IF ( ierr /= 0 )  PRINT*,' pb in allloc Ccoef_Q, ierr=', ierr
100       
101       ALLOCATE(Dcoef_Q(klon,klev), STAT=ierr)
102       IF ( ierr /= 0 )  PRINT*,' pb in allloc Dcoef_Q, ierr=', ierr
103       
104       ALLOCATE(Ccoef_H(klon,klev), STAT=ierr)
105       IF ( ierr /= 0 )  PRINT*,' pb in allloc Ccoef_H, ierr=', ierr
106       
107       ALLOCATE(Dcoef_H(klon,klev), STAT=ierr)
108       IF ( ierr /= 0 )  PRINT*,' pb in allloc Dcoef_H, ierr=', ierr
109       
110       ALLOCATE(Acoef_Q(klon), Bcoef_Q(klon), Acoef_H(klon), Bcoef_H(klon), STAT=ierr)
111       IF ( ierr /= 0 )  PRINT*,' pb in allloc Acoef_X and Bcoef_X, ierr=', ierr
112       
113       ALLOCATE(Kcoefhq(klon,klev), STAT=ierr)
114       IF ( ierr /= 0 )  PRINT*,' pb in allloc Kcoefhq, ierr=', ierr
115       
116       ALLOCATE(gamaq(1:klon,2:klev), STAT=ierr)
117       IF ( ierr /= 0 ) PRINT*,' pb in allloc gamaq, ierr=', ierr
118       
119       ALLOCATE(gamah(1:klon,2:klev), STAT=ierr)
120       IF ( ierr /= 0 ) PRINT*,' pb in allloc gamah, ierr=', ierr
121       
122       ALLOCATE(h_old(klon,klev), STAT=ierr)
123       IF ( ierr /= 0 )  PRINT*,' pb in allloc h_old, ierr=', ierr
124       
125       ALLOCATE(d_h_col_vdf(klon), STAT=ierr)
126       IF ( ierr /= 0 )  PRINT*,' pb in allloc d_h_col_vdf, ierr=', ierr
127       
128       ALLOCATE(f_h_bnd(klon), STAT=ierr)
129       IF ( ierr /= 0 )  PRINT*,' pb in allloc f_h_bnd, ierr=', ierr
130    END IF
131
132!****************************************************************************************
133! 2)
134! Definition of the coeficient K
135!
136!****************************************************************************************
137    Kcoefhq(:,:) = 0.0
138    DO k = 2, klev
139       DO i = 1, knon
140          Kcoefhq(i,k) = &
141               coefhq(i,k)*RG*RG*dtime /(pplay(i,k-1)-pplay(i,k)) &
142               *(paprs(i,k)*2/(temp(i,k)+temp(i,k-1))/RD)**2
143       ENDDO
144    ENDDO
145
146!****************************************************************************************
147! 3)
148! Calculation of gama for "Q" and "H"
149!
150!****************************************************************************************
151!   surface pressure is used as reference
152    psref(:) = paprs(:,1)
153
154!   definition of gama
155    IF (iflag_pbl == 1) THEN
156       gamaq(:,:) = 0.0
157       gamah(:,:) = -1.0e-03
158       gamah(:,2) = -2.5e-03
159 
160! conversion de gama
161       DO k = 2, klev
162          DO i = 1, knon
163             delz = RD * (temp(i,k-1)+temp(i,k)) / &
164                    2.0 / RG / paprs(i,k) * (pplay(i,k-1)-pplay(i,k))
165             pkh  = (psref(i)/paprs(i,k))**RKAPPA
166         
167! convertie gradient verticale d'humidite specifique en difference d'humidite specifique entre centre de couches
168             gamaq(i,k) = gamaq(i,k) * delz   
169! convertie gradient verticale de temperature en difference de temperature potentielle entre centre de couches
170             gamah(i,k) = gamah(i,k) * delz * RCPD * pkh
171          ENDDO
172       ENDDO
173
174    ELSE
175       gamaq(:,:) = 0.0
176       gamah(:,:) = 0.0
177    ENDIF
178   
179
180!****************************************************************************************   
181! 4)
182! Calculte the coefficients C and D for specific humidity, q
183!
184!****************************************************************************************
185   
186    CALL calc_coef(knon, Kcoefhq(:,:), gamaq(:,:), delp(:,:), q(:,:), &
187         Ccoef_Q(:,:), Dcoef_Q(:,:), Acoef_Q, Bcoef_Q)
188
189!****************************************************************************************
190! 5)
191! Calculte the coefficients C and D for potentiel entalpie, H
192!
193!****************************************************************************************
194    h_old(:,:) = 0.0
195
196    DO k=1,klev
197       DO i = 1, knon
198          ! convertie la temperature en entalpie potentielle
199          h_old(i,k) = RCPD * temp(i,k) * &
200               (psref(i)/pplay(i,k))**RKAPPA
201       ENDDO
202    ENDDO
203
204    CALL calc_coef(knon, Kcoefhq(:,:), gamah(:,:), delp(:,:), h_old(:,:), &
205         Ccoef_H(:,:), Dcoef_H(:,:), Acoef_H, Bcoef_H)
206 
207!****************************************************************************************
208! 6)
209! Return the first layer in output variables
210!
211!****************************************************************************************
212    Acoef_H_out = Acoef_H
213    Bcoef_H_out = Bcoef_H
214    Acoef_Q_out = Acoef_Q
215    Bcoef_Q_out = Bcoef_Q
216
217!****************************************************************************************
218! 7)
219! If Pbl is split, return also the other layers in output variables
220!
221!****************************************************************************************
222!!! jyg le 07/02/2012
223!!jyg       IF (mod(iflag_pbl_split,2) .eq.1) THEN
224       IF (mod(iflag_pbl_split,10) .ge.1) THEN
225!!! nrlmd le 02/05/2011
226    DO k= 1, klev
227      DO i= 1, klon
228        Ccoef_H_out(i,k) = Ccoef_H(i,k)
229        Dcoef_H_out(i,k) = Dcoef_H(i,k)
230        Ccoef_Q_out(i,k) = Ccoef_Q(i,k)
231        Dcoef_Q_out(i,k) = Dcoef_Q(i,k)
232        Kcoef_hq_out(i,k) = Kcoefhq(i,k)
233          IF (k.eq.1) THEN
234            gama_h_out(i,k)  = 0.
235            gama_q_out(i,k)  = 0.
236          ELSE
237            gama_h_out(i,k)  = gamah(i,k)
238            gama_q_out(i,k)  = gamaq(i,k)
239          ENDIF
240      ENDDO
241    ENDDO
242!!!     
243       ENDIF  ! (mod(iflag_pbl_split,2) .ge.1)
244!!!
245
246  END SUBROUTINE climb_hq_down
247!
248!****************************************************************************************
249!
250  SUBROUTINE calc_coef(knon, Kcoef, gama, delp, X, Ccoef, Dcoef, Acoef, Bcoef)
251!
252! Calculate the coefficients C and D in : X(k) = C(k) + D(k)*X(k-1)
253! where X is H or Q, and k the vertical level k=1,klev
254!
255    INCLUDE "YOMCST.h"
256! Input arguments
257!****************************************************************************************
258    INTEGER, INTENT(IN)                      :: knon
259    REAL, DIMENSION(klon,klev), INTENT(IN)   :: Kcoef, delp
260    REAL, DIMENSION(klon,klev), INTENT(IN)   :: X
261    REAL, DIMENSION(klon,2:klev), INTENT(IN) :: gama
262
263! Output arguments
264!****************************************************************************************
265    REAL, DIMENSION(klon), INTENT(OUT)       :: Acoef, Bcoef
266    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: Ccoef, Dcoef
267
268! Local variables
269!****************************************************************************************
270    INTEGER                                  :: k, i
271    REAL                                     :: buf
272
273!****************************************************************************************
274! Niveau au sommet, k=klev
275!
276!****************************************************************************************
277    Ccoef(:,:) = 0.0
278    Dcoef(:,:) = 0.0
279
280    DO i = 1, knon
281       buf = delp(i,klev) + Kcoef(i,klev)
282       
283       Ccoef(i,klev) = (X(i,klev)*delp(i,klev) - Kcoef(i,klev)*gama(i,klev))/buf
284       Dcoef(i,klev) = Kcoef(i,klev)/buf
285    END DO
286
287
288!****************************************************************************************
289! Niveau  (klev-1) <= k <= 2
290!
291!****************************************************************************************
292
293    DO k=(klev-1),2,-1
294       DO i = 1, knon
295          buf = delp(i,k) + Kcoef(i,k) + Kcoef(i,k+1)*(1.-Dcoef(i,k+1))
296          Ccoef(i,k) = (X(i,k)*delp(i,k) + Kcoef(i,k+1)*Ccoef(i,k+1) + &
297               Kcoef(i,k+1)*gama(i,k+1) - Kcoef(i,k)*gama(i,k))/buf
298          Dcoef(i,k) = Kcoef(i,k)/buf
299       END DO
300    END DO
301
302!****************************************************************************************
303! Niveau k=1
304!
305!****************************************************************************************
306
307    DO i = 1, knon
308       buf = delp(i,1) + Kcoef(i,2)*(1.-Dcoef(i,2))
309       Acoef(i) = (X(i,1)*delp(i,1) + Kcoef(i,2)*(gama(i,2)+Ccoef(i,2)))/buf
310       Bcoef(i) = -1. * RG / buf
311    END DO
312
313  END SUBROUTINE calc_coef
314!
315!****************************************************************************************
316!
317  SUBROUTINE climb_hq_up(knon, dtime, t_old, q_old, &
318       flx_q1, flx_h1, paprs, pplay, &
319!!! nrlmd le 02/05/2011
320       Acoef_H_in, Acoef_Q_in, Bcoef_H_in, Bcoef_Q_in, &
321       Ccoef_H_in, Ccoef_Q_in, Dcoef_H_in, Dcoef_Q_in, &
322       Kcoef_hq_in, gama_q_in, gama_h_in, &
323!!!
324       flux_q, flux_h, d_q, d_t)
325!
326! This routine calculates the flux and tendency of the specific humidity q and
327! the potential engergi H.
328! The quantities q and H are calculated according to
329! X(k) = C(k) + D(k)*X(k-1) for X=[q,H], where the coefficients
330! C and D are known from before and k is index of the vertical layer.
331!   
332
333! Input arguments
334!****************************************************************************************
335    INTEGER, INTENT(IN)                      :: knon
336    REAL, INTENT(IN)                         :: dtime
337    REAL, DIMENSION(klon,klev), INTENT(IN)   :: t_old, q_old
338    REAL, DIMENSION(klon), INTENT(IN)        :: flx_q1, flx_h1
339    REAL, DIMENSION(klon,klev+1), INTENT(IN) :: paprs
340    REAL, DIMENSION(klon,klev), INTENT(IN)   :: pplay
341
342!!! nrlmd le 02/05/2011
343    REAL, DIMENSION(klon), INTENT(IN)        :: Acoef_H_in,Acoef_Q_in, Bcoef_H_in, Bcoef_Q_in
344    REAL, DIMENSION(klon,klev), INTENT(IN)   :: Ccoef_H_in, Ccoef_Q_in, Dcoef_H_in, Dcoef_Q_in
345    REAL, DIMENSION(klon,klev), INTENT(IN)   :: Kcoef_hq_in, gama_q_in, gama_h_in
346!!!
347
348! Output arguments
349!****************************************************************************************
350    REAL, DIMENSION(klon,klev), INTENT(OUT)  :: flux_q, flux_h, d_q, d_t
351
352! Local variables
353!****************************************************************************************
354    LOGICAL, SAVE                            :: last=.FALSE.
355    REAL, DIMENSION(klon,klev)               :: h_new, q_new
356    REAL, DIMENSION(klon)                    :: psref         
357    INTEGER                                  :: k, i, ierr
358 
359! Include
360!****************************************************************************************
361    INCLUDE "YOMCST.h"
362    INCLUDE "compbl.h"   
363
364!****************************************************************************************
365! 1)
366! Definition of some variables
367    REAL, DIMENSION(klon,klev)               :: d_h, zairm
368!
369!****************************************************************************************
370    flux_q(:,:) = 0.0
371    flux_h(:,:) = 0.0
372    d_q(:,:)    = 0.0
373    d_t(:,:)    = 0.0
374    d_h(:,:)    = 0.0
375    f_h_bnd(:)= 0.0
376
377    psref(1:knon) = paprs(1:knon,1) 
378
379!!! jyg le 07/02/2012
380!!jyg       IF (mod(iflag_pbl_split,2) .eq.1) THEN
381       IF (mod(iflag_pbl_split,10) .ge.1) THEN
382!!! nrlmd le 02/05/2011
383    DO i = 1, knon
384      Acoef_H(i)=Acoef_H_in(i)
385      Acoef_Q(i)=Acoef_Q_in(i)
386      Bcoef_H(i)=Bcoef_H_in(i)
387      Bcoef_Q(i)=Bcoef_Q_in(i)
388    ENDDO
389    DO k = 1, klev
390      DO i = 1, knon
391        Ccoef_H(i,k)=Ccoef_H_in(i,k)
392        Ccoef_Q(i,k)=Ccoef_Q_in(i,k)
393        Dcoef_H(i,k)=Dcoef_H_in(i,k)
394        Dcoef_Q(i,k)=Dcoef_Q_in(i,k)
395        Kcoefhq(i,k)=Kcoef_hq_in(i,k)
396          IF (k.gt.1) THEN
397            gamah(i,k)=gama_h_in(i,k)
398            gamaq(i,k)=gama_q_in(i,k)
399          ENDIF
400      ENDDO
401    ENDDO
402!!!     
403       ENDIF  ! (mod(iflag_pbl_split,2) .ge.1)
404!!!
405
406!****************************************************************************************
407! 2)
408! Calculation of Q and H
409!
410!****************************************************************************************
411
412!- First layer
413    q_new(1:knon,1) = Acoef_Q(1:knon) + Bcoef_Q(1:knon)*flx_q1(1:knon)*dtime
414    h_new(1:knon,1) = Acoef_H(1:knon) + Bcoef_H(1:knon)*flx_h1(1:knon)*dtime
415    f_h_bnd(1:knon) = flx_h1(1:knon)
416!- All the other layers
417    DO k = 2, klev
418       DO i = 1, knon
419          q_new(i,k) = Ccoef_Q(i,k) + Dcoef_Q(i,k)*q_new(i,k-1)
420          h_new(i,k) = Ccoef_H(i,k) + Dcoef_H(i,k)*h_new(i,k-1)
421       END DO
422    END DO
423!****************************************************************************************
424! 3)
425! Calculation of the flux for Q and H
426!
427!****************************************************************************************
428
429!- The flux at first layer, k=1
430    flux_q(1:knon,1)=flx_q1(1:knon)
431    flux_h(1:knon,1)=flx_h1(1:knon)
432
433!- The flux at all layers above surface
434    DO k = 2, klev
435       DO i = 1, knon
436          flux_q(i,k) = (Kcoefhq(i,k)/RG/dtime) * &
437               (q_new(i,k)-q_new(i,k-1)+gamaq(i,k))
438
439          flux_h(i,k) = (Kcoefhq(i,k)/RG/dtime) * &
440               (h_new(i,k)-h_new(i,k-1)+gamah(i,k))
441       END DO
442    END DO
443
444!****************************************************************************************
445! 4)
446! Calculation of tendency for Q and H
447!
448!****************************************************************************************
449    d_h_col_vdf(:) = 0.0
450    DO k = 1, klev
451       DO i = 1, knon
452          d_t(i,k) = h_new(i,k)/(psref(i)/pplay(i,k))**RKAPPA/RCPD - t_old(i,k)
453          d_q(i,k) = q_new(i,k) - q_old(i,k)
454          d_h(i,k) = h_new(i,k) - h_old(i,k)
455!JLD          d_t(i,k) = d_h(i,k)/(psref(i)/pplay(i,k))**RKAPPA/RCPD    !correction a venir
456    ! layer air mass
457          zairm(i, k) = (paprs(i,k)-paprs(i,k+1))/rg
458          d_h_col_vdf(i) = d_h_col_vdf(i) + d_h(i,k)*zairm(i,k)
459        END DO
460    END DO
461
462!****************************************************************************************
463! Some deallocations
464!
465!****************************************************************************************
466    IF (last) THEN
467       DEALLOCATE(Ccoef_Q, Dcoef_Q, Ccoef_H, Dcoef_H,stat=ierr)   
468       IF ( ierr /= 0 )  PRINT*,' pb in dealllocate Ccoef_Q, Dcoef_Q, Ccoef_H, Dcoef_H, ierr=', ierr
469       DEALLOCATE(Acoef_Q, Bcoef_Q, Acoef_H, Bcoef_H,stat=ierr)   
470       IF ( ierr /= 0 )  PRINT*,' pb in dealllocate Acoef_Q, Bcoef_Q, Acoef_H, Bcoef_H, ierr=', ierr
471       DEALLOCATE(gamaq, gamah,stat=ierr)
472       IF ( ierr /= 0 )  PRINT*,' pb in dealllocate gamaq, gamah, ierr=', ierr
473       DEALLOCATE(Kcoefhq,stat=ierr)
474       IF ( ierr /= 0 )  PRINT*,' pb in dealllocate Kcoefhq, ierr=', ierr
475       DEALLOCATE(h_old, d_h_col_vdf, f_h_bnd, stat=ierr)
476       IF ( ierr /= 0 )  PRINT*,' pb in dealllocate h_old, d_h_col_vdf, f_h_bnd, ierr=', ierr
477    END IF
478  END SUBROUTINE climb_hq_up
479!
480!****************************************************************************************
481!
482END MODULE climb_hq_mod
483
484 
485
486
487
488
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