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convadj.F @ 1242

Last change on this file since 1242 was 1226, checked in by aslmd, 11 years ago
LMDZ.MARS : Replaced comcstfi and planete includes by modules.
File size: 11.6 KB

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1	subroutine convadj(ngrid,nlay,nq,ptimestep,
2	& pplay,pplev,ppopsk,lmax_th,
3	& pu,pv,ph,pq,
4	& pdufi,pdvfi,pdhfi,pdqfi,
5	& pduadj,pdvadj,pdhadj,
6	& pdqadj)
7
8	use tracer_mod, only: noms, ! tracer names
9	& igcm_h2o_vap ! index of water vapor tracer
10	USE comcstfi_h
11	implicit none
12
13	!==================================================================
14	!
15	! Purpose
16	! -------
17	! Calculates dry convective adjustment. If one tracer is CO2,
18	! we take into account the molecular mass variation (e.g. when
19	! CO2 condenses) to trigger convection (F. Forget 01/2005)
20	!
21	! Authors
22	! -------
23	! Original author unknown.
24	! Modif. 2005 by F. Forget.
25	! Modif. 2010 by R. Wordsworth
26	! Modif. 2011 by A. Colaitis
27	!
28	!==================================================================
29
30	! ------------
31	! Declarations
32	! ------------
33
34	!#include "dimensions.h"
35	!#include "dimphys.h"
36	#include "callkeys.h"
37	!#include "tracer.h"
38
39
40	! Arguments
41	! ---------
42
43	INTEGER,intent(in) :: ngrid,nlay,lmax_th(ngrid)
44	REAL,intent(in) :: ptimestep
45	REAL,intent(in) :: ph(ngrid,nlay)
46	REAL,intent(in) :: pdhfi(ngrid,nlay)
47	REAL,intent(out) :: pdhadj(ngrid,nlay)
48	REAL,intent(in) :: pplay(ngrid,nlay),pplev(ngrid,nlay+1)
49	REAL,intent(in) :: ppopsk(ngrid,nlay)
50	REAL,intent(in) :: pu(ngrid,nlay),pdufi(ngrid,nlay)
51	REAL,intent(out) :: pduadj(ngrid,nlay)
52	REAL,intent(in) :: pv(ngrid,nlay),pdvfi(ngrid,nlay)
53	REAL,intent(out) :: pdvadj(ngrid,nlay)
54
55	! Tracers
56	integer,intent(in) :: nq
57	real,intent(in) :: pq(ngrid,nlay,nq), pdqfi(ngrid,nlay,nq)
58	real,intent(out) :: pdqadj(ngrid,nlay,nq)
59
60
61	! Local
62	! -----
63
64	INTEGER ig,i,l,l1,l2,jj
65	INTEGER jcnt, jadrs(ngrid)
66
67	REAL sig(nlay+1),sdsig(nlay),dsig(nlay)
68	REAL zu(ngrid,nlay),zv(ngrid,nlay)
69	REAL zh(ngrid,nlay)
70	REAL zu2(ngrid,nlay),zv2(ngrid,nlay)
71	REAL zh2(ngrid,nlay), zhc(ngrid,nlay)
72	REAL zhm,zsm,zdsm,zum,zvm,zalpha,zhmc
73
74	! Tracers
75	INTEGER iq,ico2
76	save ico2
77	REAL zq(ngrid,nlay,nq), zq2(ngrid,nlay,nq)
78	REAL zqm(nq),zqco2m
79	real m_co2, m_noco2, A , B
80	save A, B
81
82	real mtot1, mtot2 , mm1, mm2
83	integer l1ref, l2ref
84	LOGICAL vtest(ngrid),down,firstcall
85	save firstcall
86	data firstcall/.true./
87
88	! for conservation test
89	real masse,cadjncons
90
91	! --------------
92	! Initialisation
93	! --------------
94
95	IF (firstcall) THEN
96
97	ico2=0
98	if (tracer) then
99	! Prepare Special treatment if one of the tracers is CO2 gas
100	do iq=1,nq
101	if (noms(iq).eq."co2") then
102	ico2=iq
103	m_co2 = 44.01E-3 ! CO2 molecular mass (kg/mol)
104	m_noco2 = 33.37E-3 ! Non condensible mol mass (kg/mol)
105	! Compute A and B coefficient use to compute
106	! mean molecular mass Mair defined by
107	! 1/Mair = q(ico2)/m_co2 + (1-q(ico2))/m_noco2
108	! 1/Mair = A*q(ico2) + B
109	A =(1/m_co2 - 1/m_noco2)
110	B=1/m_noco2
111	end if
112	enddo
113	endif
114	firstcall=.false.
115	ENDIF ! of IF (firstcall)
116
117	DO l=1,nlay
118	DO ig=1,ngrid
119	zh(ig,l)=ph(ig,l)+pdhfi(ig,l)*ptimestep
120	zu(ig,l)=pu(ig,l)+pdufi(ig,l)*ptimestep
121	zv(ig,l)=pv(ig,l)+pdvfi(ig,l)*ptimestep
122	ENDDO
123	ENDDO
124
125	if(tracer) then
126	DO iq =1, nq
127	DO l=1,nlay
128	DO ig=1,ngrid
129	zq(ig,l,iq)=pq(ig,l,iq)+pdqfi(ig,l,iq)*ptimestep
130	ENDDO
131	ENDDO
132	ENDDO
133	end if
134
135	zh2(:,:)=zh(:,:)
136	zu2(:,:)=zu(:,:)
137	zv2(:,:)=zv(:,:)
138	zq2(:,:,:)=zq(:,:,:)
139
140	! -----------------------------
141	! Detection of unstable columns
142	! -----------------------------
143	! If ph(above) < ph(below) we set vtest=.true.
144
145	DO ig=1,ngrid
146	vtest(ig)=.false.
147	ENDDO
148
149	if (ico2.ne.0) then
150	! Special case if one of the tracers is CO2 gas
151	DO l=1,nlay
152	DO ig=1,ngrid
153	zhc(ig,l) = zh2(ig,l)(Azq2(ig,l,ico2)+B)
154	ENDDO
155	ENDDO
156	else
157	zhc(:,:)=zh2(:,:)
158	end if
159
160	! Find out which grid points are convectively unstable
161	DO l=2,nlay
162	DO ig=1,ngrid
163	IF((zhc(ig,l).LT.zhc(ig,l-1)) $
164	$ .AND. (l .GT. lmax_th(ig))) vtest(ig)=.true.
165	ENDDO
166	ENDDO
167
168	! Make a list of them
169	jcnt=0
170	DO ig=1,ngrid
171	IF(vtest(ig)) THEN
172	jcnt=jcnt+1
173	jadrs(jcnt)=ig
174	ENDIF
175	ENDDO
176
177
178	! ---------------------------------------------------------------
179	! Adjustment of the "jcnt" unstable profiles indicated by "jadrs"
180	! ---------------------------------------------------------------
181
182	DO jj = 1, jcnt ! loop on every convective grid point
183
184	i = jadrs(jj)
185
186	! Calculate sigma in this column
187	DO l=1,nlay+1
188	sig(l)=pplev(i,l)/pplev(i,1)
189
190	ENDDO
191	DO l=1,nlay
192	dsig(l)=sig(l)-sig(l+1)
193	sdsig(l)=ppopsk(i,l)*dsig(l)
194	ENDDO
195	l2 = 1
196
197	! Test loop upwards on l2
198
199	DO
200	l2 = l2 + 1
201	IF (l2 .GT. nlay) EXIT
202	IF ((zhc(i, l2) .LT. zhc(i, l2-1)).AND.(l2 .GT. lmax_th(i))) THEN
203
204	! l2 is the highest level of the unstable column
205
206	l1 = l2 - 1
207	l = l1
208	zsm = sdsig(l2)
209	zdsm = dsig(l2)
210	zhm = zh2(i, l2)
211	if(ico2.ne.0) zqco2m = zq2(i,l2,ico2)
212
213	! Test loop downwards
214
215	DO
216	zsm = zsm + sdsig(l)
217	zdsm = zdsm + dsig(l)
218	zhm = zhm + sdsig(l) * (zh2(i, l) - zhm) / zsm
219	if(ico2.ne.0) then
220	zqco2m =
221	& zqco2m + dsig(l) * (zq2(i,l,ico2) - zqco2m) / zdsm
222	zhmc = zhm(Azqco2m+B)
223	else
224	zhmc = zhm
225	end if
226
227	! do we have to extend the column downwards?
228
229	down = .false.
230	IF (l1 .ne. 1) then !-- and then
231	IF ((zhmc .lt. zhc(i, l1-1)).and.(l1.gt.lmax_th(i))) then
232	down = .true.
233	END IF
234	END IF
235
236	! this could be a problem...
237
238	if (down) then
239
240	l1 = l1 - 1
241	l = l1
242
243	else
244
245	! can we extend the column upwards?
246
247	if (l2 .eq. nlay) exit
248
249	if (zhc(i, l2+1) .ge. zhmc) exit
250
251	l2 = l2 + 1
252	l = l2
253
254	end if ! of if (down)
255
256	enddo ! of do ! Test loop forward
257
258	! New constant profile (average value)
259
260
261	zalpha=0.
262	zum=0.
263	zvm=0.
264	do iq=1,nq
265	zqm(iq) = 0.
266	end do
267	DO l = l1, l2
268	if(ico2.ne.0) then
269	zalpha=zalpha+
270	& ABS(zhc(i,l)/(A+Bzqco2m) -zhm)dsig(l)
271	else
272	zalpha=zalpha+ABS(zh2(i,l)-zhm)*dsig(l)
273	endif
274	zh2(i, l) = zhm
275	! modifs by RDW !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
276	zum=zum+dsig(l)*zu2(i,l)
277	zvm=zvm+dsig(l)*zv2(i,l)
278	! zum=zum+dsig(l)*zu(i,l)
279	! zvm=zvm+dsig(l)*zv(i,l)
280	do iq=1,nq
281	zqm(iq) = zqm(iq)+dsig(l)*zq2(i,l,iq)
282	! zqm(iq) = zqm(iq)+dsig(l)*zq(i,l,iq)
283	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
284
285	! to conserve tracers/ KE, we must calculate zum, zvm and zqm using
286	! the up-to-date column values. If we do not do this, there are cases
287	! where convection stops at one level and starts at the next where we
288	! can break conservation of stuff (particularly tracers) significantly.
289
290	end do
291	ENDDO ! of DO l = l1, l2
292	zalpha=zalpha/(zhm*(sig(l1)-sig(l2+1)))
293	zum=zum/(sig(l1)-sig(l2+1))
294	zvm=zvm/(sig(l1)-sig(l2+1))
295	do iq=1,nq
296	zqm(iq) = zqm(iq)/(sig(l1)-sig(l2+1))
297	end do
298
299	IF(zalpha.GT.1.) THEN
300	zalpha=1.
301	ELSE
302	! IF(zalpha.LT.0.) STOP
303	IF(zalpha.LT.1.e-4) zalpha=1.e-4
304	ENDIF
305
306	DO l=l1,l2
307	zu2(i,l)=zu2(i,l)+zalpha*(zum-zu2(i,l))
308	zv2(i,l)=zv2(i,l)+zalpha*(zvm-zv2(i,l))
309	do iq=1,nq
310	! zq2(i,l,iq)=zq2(i,l,iq)+zalpha*(zqm(iq)-zq2(i,l,iq))
311	zq2(i,l,iq)=zqm(iq)
312	end do
313	ENDDO
314	if (ico2.ne.0) then
315	DO l=l1, l2
316	zhc(i,l) = zh2(i,l)(Azq2(i,l,ico2)+B)
317	ENDDO
318	end if
319
320
321	l2 = l2 + 1
322
323	END IF ! End of l1 to l2 instability treatment
324	! We now continue to test from l2 upwards
325
326	ENDDO ! End of upwards loop on l2
327
328
329	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
330	! check conservation
331	cadjncons=0.0
332	if(water)then
333	iq = igcm_h2o_vap
334	do l = 1, nlay
335	masse = (pplev(i,l) - pplev(i,l+1))/g
336	cadjncons = cadjncons +
337	& masse*(zq2(i,l,iq)-zq(i,l,iq))/ptimestep
338	end do
339	endif
340
341	if(cadjncons.lt.-1.e-6)then
342	print*,'convadj has just crashed...'
343	print*,'i = ',i
344	print*,'l1 = ',l1
345	print*,'l2 = ',l2
346	print*,'cadjncons = ',cadjncons
347	do l = 1, nlay
348	print*,'dsig = ',dsig(l)
349	end do
350	do l = 1, nlay
351	print*,'dsig = ',dsig(l)
352	end do
353	do l = 1, nlay
354	print*,'sig = ',sig(l)
355	end do
356	do l = 1, nlay
357	print*,'pplay(ig,:) = ',pplay(i,l)
358	end do
359	do l = 1, nlay+1
360	print*,'pplev(ig,:) = ',pplev(i,l)
361	end do
362	do l = 1, nlay
363	print*,'ph(ig,:) = ',ph(i,l)
364	end do
365	do l = 1, nlay
366	print*,'zh(ig,:) = ',zh(i,l)
367	end do
368	do l = 1, nlay
369	print*,'zh2(ig,:) = ',zh2(i,l)
370	end do
371	do l = 1, nlay
372	print*,'zq(ig,:,vap) = ',zq(i,l,igcm_h2o_vap)
373	end do
374	do l = 1, nlay
375	print*,'zq2(ig,:,vap) = ',zq2(i,l,igcm_h2o_vap)
376	end do
377	print*,'zqm(vap) = ',zqm(igcm_h2o_vap)
378	print*,'jadrs=',jadrs
379
380	call abort
381	endif
382	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
383
384	ENDDO ! of DO jj = 1, jcnt ! loop on every convective grid point
385
386
387	DO l=1,nlay
388	DO ig=1,ngrid
389	pdhadj(ig,l)=(zh2(ig,l)-zh(ig,l))/ptimestep
390	pduadj(ig,l)=(zu2(ig,l)-zu(ig,l))/ptimestep
391	pdvadj(ig,l)=(zv2(ig,l)-zv(ig,l))/ptimestep
392	ENDDO
393	ENDDO
394
395	if(tracer) then
396	do iq=1, nq
397	do l=1,nlay
398	do ig=1, ngrid
399	pdqadj(ig,l,iq)=(zq2(ig,l,iq)-zq(ig,l,iq))/ptimestep
400	end do
401	end do
402	end do
403	end if
404
405
406	! output
407	! if (ngrid.eq.1) then
408	! ig=1
409	! iq =1
410	! write(,)'**convadj: l, pq(ig,l,iq),zq(ig,l,iq),zq2(ig,l,iq)'
411	! do l=nlay,1,-1
412	! write(,) l, pq(ig,l,iq),zq(ig,l,iq),zq2(ig,l,iq)
413	! end do
414	! end if
415
416
417	return
418	end
419

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