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convadj.F @ 1618

Last change on this file since 1618 was 1266, checked in by aslmd, 11 years ago

LMDZ.MARS
IMPORTANT CHANGE

Remove all reference/use of nlayermx and dimphys.h
Made use of automatic arrays whenever arrays are needed with dimension nlayer
Remove lots of obsolete reference to dimensions.h
Converted iono.h and param_v4.h into corresponding modules

(with embedded subroutine to allocate arrays)
(no arrays allocated if thermosphere not used)

Deleted param.h and put contents into module param_v4_h
Adapted testphys1d, newstart, etc...
Made DATA arrays in param_read to be initialized by subroutine

fill_data_thermos in module param_v4_h

Optimized computations in paramfoto_compact (twice less dlog10 calculations)
Checked consistency before/after modification in debug mode
Checked performance is not impacted (same as before)

File size: 11.6 KB

Line
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 "callkeys.h"
35
36
37	! Arguments
38	! ---------
39
40	INTEGER,intent(in) :: ngrid,nlay,lmax_th(ngrid)
41	REAL,intent(in) :: ptimestep
42	REAL,intent(in) :: ph(ngrid,nlay)
43	REAL,intent(in) :: pdhfi(ngrid,nlay)
44	REAL,intent(out) :: pdhadj(ngrid,nlay)
45	REAL,intent(in) :: pplay(ngrid,nlay),pplev(ngrid,nlay+1)
46	REAL,intent(in) :: ppopsk(ngrid,nlay)
47	REAL,intent(in) :: pu(ngrid,nlay),pdufi(ngrid,nlay)
48	REAL,intent(out) :: pduadj(ngrid,nlay)
49	REAL,intent(in) :: pv(ngrid,nlay),pdvfi(ngrid,nlay)
50	REAL,intent(out) :: pdvadj(ngrid,nlay)
51
52	! Tracers
53	integer,intent(in) :: nq
54	real,intent(in) :: pq(ngrid,nlay,nq), pdqfi(ngrid,nlay,nq)
55	real,intent(out) :: pdqadj(ngrid,nlay,nq)
56
57
58	! Local
59	! -----
60
61	INTEGER ig,i,l,l1,l2,jj
62	INTEGER jcnt, jadrs(ngrid)
63
64	REAL sig(nlay+1),sdsig(nlay),dsig(nlay)
65	REAL zu(ngrid,nlay),zv(ngrid,nlay)
66	REAL zh(ngrid,nlay)
67	REAL zu2(ngrid,nlay),zv2(ngrid,nlay)
68	REAL zh2(ngrid,nlay), zhc(ngrid,nlay)
69	REAL zhm,zsm,zdsm,zum,zvm,zalpha,zhmc
70
71	! Tracers
72	INTEGER iq,ico2
73	save ico2
74	REAL zq(ngrid,nlay,nq), zq2(ngrid,nlay,nq)
75	REAL zqm(nq),zqco2m
76	real m_co2, m_noco2, A , B
77	save A, B
78
79	real mtot1, mtot2 , mm1, mm2
80	integer l1ref, l2ref
81	LOGICAL vtest(ngrid),down,firstcall
82	save firstcall
83	data firstcall/.true./
84
85	! for conservation test
86	real masse,cadjncons
87
88	! --------------
89	! Initialisation
90	! --------------
91
92	IF (firstcall) THEN
93
94	ico2=0
95	if (tracer) then
96	! Prepare Special treatment if one of the tracers is CO2 gas
97	do iq=1,nq
98	if (noms(iq).eq."co2") then
99	ico2=iq
100	m_co2 = 44.01E-3 ! CO2 molecular mass (kg/mol)
101	m_noco2 = 33.37E-3 ! Non condensible mol mass (kg/mol)
102	! Compute A and B coefficient use to compute
103	! mean molecular mass Mair defined by
104	! 1/Mair = q(ico2)/m_co2 + (1-q(ico2))/m_noco2
105	! 1/Mair = A*q(ico2) + B
106	A =(1/m_co2 - 1/m_noco2)
107	B=1/m_noco2
108	end if
109	enddo
110	endif
111	firstcall=.false.
112	ENDIF ! of IF (firstcall)
113
114	DO l=1,nlay
115	DO ig=1,ngrid
116	zh(ig,l)=ph(ig,l)+pdhfi(ig,l)*ptimestep
117	zu(ig,l)=pu(ig,l)+pdufi(ig,l)*ptimestep
118	zv(ig,l)=pv(ig,l)+pdvfi(ig,l)*ptimestep
119	ENDDO
120	ENDDO
121
122	if(tracer) then
123	DO iq =1, nq
124	DO l=1,nlay
125	DO ig=1,ngrid
126	zq(ig,l,iq)=pq(ig,l,iq)+pdqfi(ig,l,iq)*ptimestep
127	ENDDO
128	ENDDO
129	ENDDO
130	end if
131
132	zh2(:,:)=zh(:,:)
133	zu2(:,:)=zu(:,:)
134	zv2(:,:)=zv(:,:)
135	zq2(:,:,:)=zq(:,:,:)
136
137	! -----------------------------
138	! Detection of unstable columns
139	! -----------------------------
140	! If ph(above) < ph(below) we set vtest=.true.
141
142	DO ig=1,ngrid
143	vtest(ig)=.false.
144	ENDDO
145
146	if (ico2.ne.0) then
147	! Special case if one of the tracers is CO2 gas
148	DO l=1,nlay
149	DO ig=1,ngrid
150	zhc(ig,l) = zh2(ig,l)(Azq2(ig,l,ico2)+B)
151	ENDDO
152	ENDDO
153	else
154	zhc(:,:)=zh2(:,:)
155	end if
156
157	! Find out which grid points are convectively unstable
158	DO l=2,nlay
159	DO ig=1,ngrid
160	IF((zhc(ig,l).LT.zhc(ig,l-1)) $
161	$ .AND. (l .GT. lmax_th(ig))) vtest(ig)=.true.
162	ENDDO
163	ENDDO
164
165	! Make a list of them
166	jcnt=0
167	DO ig=1,ngrid
168	IF(vtest(ig)) THEN
169	jcnt=jcnt+1
170	jadrs(jcnt)=ig
171	ENDIF
172	ENDDO
173
174
175	! ---------------------------------------------------------------
176	! Adjustment of the "jcnt" unstable profiles indicated by "jadrs"
177	! ---------------------------------------------------------------
178
179	DO jj = 1, jcnt ! loop on every convective grid point
180
181	i = jadrs(jj)
182
183	! Calculate sigma in this column
184	DO l=1,nlay+1
185	sig(l)=pplev(i,l)/pplev(i,1)
186
187	ENDDO
188	DO l=1,nlay
189	dsig(l)=sig(l)-sig(l+1)
190	sdsig(l)=ppopsk(i,l)*dsig(l)
191	ENDDO
192	l2 = 1
193
194	! Test loop upwards on l2
195
196	DO
197	l2 = l2 + 1
198	IF (l2 .GT. nlay) EXIT
199	IF ((zhc(i, l2) .LT. zhc(i, l2-1)).AND.(l2 .GT. lmax_th(i))) THEN
200
201	! l2 is the highest level of the unstable column
202
203	l1 = l2 - 1
204	l = l1
205	zsm = sdsig(l2)
206	zdsm = dsig(l2)
207	zhm = zh2(i, l2)
208	if(ico2.ne.0) zqco2m = zq2(i,l2,ico2)
209
210	! Test loop downwards
211
212	DO
213	zsm = zsm + sdsig(l)
214	zdsm = zdsm + dsig(l)
215	zhm = zhm + sdsig(l) * (zh2(i, l) - zhm) / zsm
216	if(ico2.ne.0) then
217	zqco2m =
218	& zqco2m + dsig(l) * (zq2(i,l,ico2) - zqco2m) / zdsm
219	zhmc = zhm(Azqco2m+B)
220	else
221	zhmc = zhm
222	end if
223
224	! do we have to extend the column downwards?
225
226	down = .false.
227	IF (l1 .ne. 1) then !-- and then
228	IF ((zhmc .lt. zhc(i, l1-1)).and.(l1.gt.lmax_th(i))) then
229	down = .true.
230	END IF
231	END IF
232
233	! this could be a problem...
234
235	if (down) then
236
237	l1 = l1 - 1
238	l = l1
239
240	else
241
242	! can we extend the column upwards?
243
244	if (l2 .eq. nlay) exit
245
246	if (zhc(i, l2+1) .ge. zhmc) exit
247
248	l2 = l2 + 1
249	l = l2
250
251	end if ! of if (down)
252
253	enddo ! of do ! Test loop forward
254
255	! New constant profile (average value)
256
257
258	zalpha=0.
259	zum=0.
260	zvm=0.
261	do iq=1,nq
262	zqm(iq) = 0.
263	end do
264	DO l = l1, l2
265	if(ico2.ne.0) then
266	zalpha=zalpha+
267	& ABS(zhc(i,l)/(A+Bzqco2m) -zhm)dsig(l)
268	else
269	zalpha=zalpha+ABS(zh2(i,l)-zhm)*dsig(l)
270	endif
271	zh2(i, l) = zhm
272	! modifs by RDW !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
273	zum=zum+dsig(l)*zu2(i,l)
274	zvm=zvm+dsig(l)*zv2(i,l)
275	! zum=zum+dsig(l)*zu(i,l)
276	! zvm=zvm+dsig(l)*zv(i,l)
277	do iq=1,nq
278	zqm(iq) = zqm(iq)+dsig(l)*zq2(i,l,iq)
279	! zqm(iq) = zqm(iq)+dsig(l)*zq(i,l,iq)
280	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
281
282	! to conserve tracers/ KE, we must calculate zum, zvm and zqm using
283	! the up-to-date column values. If we do not do this, there are cases
284	! where convection stops at one level and starts at the next where we
285	! can break conservation of stuff (particularly tracers) significantly.
286
287	end do
288	ENDDO ! of DO l = l1, l2
289	zalpha=zalpha/(zhm*(sig(l1)-sig(l2+1)))
290	zum=zum/(sig(l1)-sig(l2+1))
291	zvm=zvm/(sig(l1)-sig(l2+1))
292	do iq=1,nq
293	zqm(iq) = zqm(iq)/(sig(l1)-sig(l2+1))
294	end do
295
296	IF(zalpha.GT.1.) THEN
297	zalpha=1.
298	ELSE
299	! IF(zalpha.LT.0.) STOP
300	IF(zalpha.LT.1.e-4) zalpha=1.e-4
301	ENDIF
302
303	DO l=l1,l2
304	zu2(i,l)=zu2(i,l)+zalpha*(zum-zu2(i,l))
305	zv2(i,l)=zv2(i,l)+zalpha*(zvm-zv2(i,l))
306	do iq=1,nq
307	! zq2(i,l,iq)=zq2(i,l,iq)+zalpha*(zqm(iq)-zq2(i,l,iq))
308	zq2(i,l,iq)=zqm(iq)
309	end do
310	ENDDO
311	if (ico2.ne.0) then
312	DO l=l1, l2
313	zhc(i,l) = zh2(i,l)(Azq2(i,l,ico2)+B)
314	ENDDO
315	end if
316
317
318	l2 = l2 + 1
319
320	END IF ! End of l1 to l2 instability treatment
321	! We now continue to test from l2 upwards
322
323	ENDDO ! End of upwards loop on l2
324
325
326	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
327	! check conservation
328	cadjncons=0.0
329	if(water)then
330	iq = igcm_h2o_vap
331	do l = 1, nlay
332	masse = (pplev(i,l) - pplev(i,l+1))/g
333	cadjncons = cadjncons +
334	& masse*(zq2(i,l,iq)-zq(i,l,iq))/ptimestep
335	end do
336	endif
337
338	if(cadjncons.lt.-1.e-6)then
339	print*,'convadj has just crashed...'
340	print*,'i = ',i
341	print*,'l1 = ',l1
342	print*,'l2 = ',l2
343	print*,'cadjncons = ',cadjncons
344	do l = 1, nlay
345	print*,'dsig = ',dsig(l)
346	end do
347	do l = 1, nlay
348	print*,'dsig = ',dsig(l)
349	end do
350	do l = 1, nlay
351	print*,'sig = ',sig(l)
352	end do
353	do l = 1, nlay
354	print*,'pplay(ig,:) = ',pplay(i,l)
355	end do
356	do l = 1, nlay+1
357	print*,'pplev(ig,:) = ',pplev(i,l)
358	end do
359	do l = 1, nlay
360	print*,'ph(ig,:) = ',ph(i,l)
361	end do
362	do l = 1, nlay
363	print*,'zh(ig,:) = ',zh(i,l)
364	end do
365	do l = 1, nlay
366	print*,'zh2(ig,:) = ',zh2(i,l)
367	end do
368	do l = 1, nlay
369	print*,'zq(ig,:,vap) = ',zq(i,l,igcm_h2o_vap)
370	end do
371	do l = 1, nlay
372	print*,'zq2(ig,:,vap) = ',zq2(i,l,igcm_h2o_vap)
373	end do
374	print*,'zqm(vap) = ',zqm(igcm_h2o_vap)
375	print*,'jadrs=',jadrs
376
377	call abort
378	endif
379	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
380
381	ENDDO ! of DO jj = 1, jcnt ! loop on every convective grid point
382
383
384	DO l=1,nlay
385	DO ig=1,ngrid
386	pdhadj(ig,l)=(zh2(ig,l)-zh(ig,l))/ptimestep
387	pduadj(ig,l)=(zu2(ig,l)-zu(ig,l))/ptimestep
388	pdvadj(ig,l)=(zv2(ig,l)-zv(ig,l))/ptimestep
389	ENDDO
390	ENDDO
391
392	if(tracer) then
393	do iq=1, nq
394	do l=1,nlay
395	do ig=1, ngrid
396	pdqadj(ig,l,iq)=(zq2(ig,l,iq)-zq(ig,l,iq))/ptimestep
397	end do
398	end do
399	end do
400	end if
401
402
403	! output
404	! if (ngrid.eq.1) then
405	! ig=1
406	! iq =1
407	! write(,)'**convadj: l, pq(ig,l,iq),zq(ig,l,iq),zq2(ig,l,iq)'
408	! do l=nlay,1,-1
409	! write(,) l, pq(ig,l,iq),zq(ig,l,iq),zq2(ig,l,iq)
410	! end do
411	! end if
412
413
414	return
415	end
416

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