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convadj.F

Last change on this file was 2823, checked in by emillour, 2 years ago
Mars GCM: Remove the "tracer" (logical) flag as we now always run with at least one tracer. EM
File size: 11.2 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, only: g
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
73	integer,save :: ico2
74	REAL zq(ngrid,nlay,nq), zq2(ngrid,nlay,nq)
75	REAL zqm(nq),zqco2m
76	real m_co2, m_noco2
77	real,save :: A, B
78
79	real mtot1, mtot2 , mm1, mm2
80	integer l1ref, l2ref
81	LOGICAL vtest(ngrid),down
82	logical,save :: firstcall=.true.
83
84
85	!$OMP THREADPRIVATE(ico2,A,B,firstcall)
86
87	! for conservation test
88	real masse,cadjncons
89
90	! --------------
91	! Initialisation
92	! --------------
93
94	! AS: OK firstcall absolute
95	IF (firstcall) THEN
96
97	ico2=0
98	! Prepare Special treatment if one of the tracers is CO2 gas
99	do iq=1,nq
100	if (noms(iq).eq."co2") then
101	ico2=iq
102	m_co2 = 44.01E-3 ! CO2 molecular mass (kg/mol)
103	m_noco2 = 33.37E-3 ! Non condensible mol mass (kg/mol)
104	! Compute A and B coefficient use to compute
105	! mean molecular mass Mair defined by
106	! 1/Mair = q(ico2)/m_co2 + (1-q(ico2))/m_noco2
107	! 1/Mair = A*q(ico2) + B
108	A =(1/m_co2 - 1/m_noco2)
109	B=1/m_noco2
110	end if
111	enddo
112	firstcall=.false.
113	ENDIF ! of IF (firstcall)
114
115	DO l=1,nlay
116	DO ig=1,ngrid
117	zh(ig,l)=ph(ig,l)+pdhfi(ig,l)*ptimestep
118	zu(ig,l)=pu(ig,l)+pdufi(ig,l)*ptimestep
119	zv(ig,l)=pv(ig,l)+pdvfi(ig,l)*ptimestep
120	ENDDO
121	ENDDO
122
123	zq(1:ngrid,1:nlay,1:nq)=pq(1:ngrid,1:nlay,1:nq)+
124	& pdqfi(1:ngrid,1:nlay,1:nq)*ptimestep
125
126	zh2(:,:)=zh(:,:)
127	zu2(:,:)=zu(:,:)
128	zv2(:,:)=zv(:,:)
129	zq2(:,:,:)=zq(:,:,:)
130
131	! -----------------------------
132	! Detection of unstable columns
133	! -----------------------------
134	! If ph(above) < ph(below) we set vtest=.true.
135
136	DO ig=1,ngrid
137	vtest(ig)=.false.
138	ENDDO
139
140	if (ico2.ne.0) then
141	! Special case if one of the tracers is CO2 gas
142	DO l=1,nlay
143	DO ig=1,ngrid
144	zhc(ig,l) = zh2(ig,l)(Azq2(ig,l,ico2)+B)
145	ENDDO
146	ENDDO
147	else
148	zhc(:,:)=zh2(:,:)
149	end if
150
151	! Find out which grid points are convectively unstable
152	DO l=2,nlay
153	DO ig=1,ngrid
154	IF((zhc(ig,l).LT.zhc(ig,l-1)) $
155	$ .AND. (l .GT. lmax_th(ig))) vtest(ig)=.true.
156	ENDDO
157	ENDDO
158
159	! Make a list of them
160	jcnt=0
161	DO ig=1,ngrid
162	IF(vtest(ig)) THEN
163	jcnt=jcnt+1
164	jadrs(jcnt)=ig
165	ENDIF
166	ENDDO
167
168
169	! ---------------------------------------------------------------
170	! Adjustment of the "jcnt" unstable profiles indicated by "jadrs"
171	! ---------------------------------------------------------------
172
173	DO jj = 1, jcnt ! loop on every convective grid point
174
175	i = jadrs(jj)
176
177	! Calculate sigma in this column
178	DO l=1,nlay+1
179	sig(l)=pplev(i,l)/pplev(i,1)
180
181	ENDDO
182	DO l=1,nlay
183	dsig(l)=sig(l)-sig(l+1)
184	sdsig(l)=ppopsk(i,l)*dsig(l)
185	ENDDO
186	l2 = 1
187
188	! Test loop upwards on l2
189
190	DO
191	l2 = l2 + 1
192	IF (l2 .GT. nlay) EXIT
193	IF ((zhc(i, l2) .LT. zhc(i, l2-1)).AND.(l2 .GT. lmax_th(i))) THEN
194
195	! l2 is the highest level of the unstable column
196
197	l1 = l2 - 1
198	l = l1
199	zsm = sdsig(l2)
200	zdsm = dsig(l2)
201	zhm = zh2(i, l2)
202	if(ico2.ne.0) zqco2m = zq2(i,l2,ico2)
203
204	! Test loop downwards
205
206	DO
207	zsm = zsm + sdsig(l)
208	zdsm = zdsm + dsig(l)
209	zhm = zhm + sdsig(l) * (zh2(i, l) - zhm) / zsm
210	if(ico2.ne.0) then
211	zqco2m =
212	& zqco2m + dsig(l) * (zq2(i,l,ico2) - zqco2m) / zdsm
213	zhmc = zhm(Azqco2m+B)
214	else
215	zhmc = zhm
216	end if
217
218	! do we have to extend the column downwards?
219
220	down = .false.
221	IF (l1 .ne. 1) then !-- and then
222	IF ((zhmc .lt. zhc(i, l1-1)).and.(l1.gt.lmax_th(i))) then
223	down = .true.
224	END IF
225	END IF
226
227	! this could be a problem...
228
229	if (down) then
230
231	l1 = l1 - 1
232	l = l1
233
234	else
235
236	! can we extend the column upwards?
237
238	if (l2 .eq. nlay) exit
239
240	if (zhc(i, l2+1) .ge. zhmc) exit
241
242	l2 = l2 + 1
243	l = l2
244
245	end if ! of if (down)
246
247	enddo ! of do ! Test loop forward
248
249	! New constant profile (average value)
250
251
252	zalpha=0.
253	zum=0.
254	zvm=0.
255	do iq=1,nq
256	zqm(iq) = 0.
257	end do
258	DO l = l1, l2
259	if(ico2.ne.0) then
260	zalpha=zalpha+
261	& ABS(zhc(i,l)/(A+Bzqco2m) -zhm)dsig(l)
262	else
263	zalpha=zalpha+ABS(zh2(i,l)-zhm)*dsig(l)
264	endif
265	zh2(i, l) = zhm
266	! modifs by RDW !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
267	zum=zum+dsig(l)*zu2(i,l)
268	zvm=zvm+dsig(l)*zv2(i,l)
269	! zum=zum+dsig(l)*zu(i,l)
270	! zvm=zvm+dsig(l)*zv(i,l)
271	do iq=1,nq
272	zqm(iq) = zqm(iq)+dsig(l)*zq2(i,l,iq)
273	! zqm(iq) = zqm(iq)+dsig(l)*zq(i,l,iq)
274	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
275
276	! to conserve tracers/ KE, we must calculate zum, zvm and zqm using
277	! the up-to-date column values. If we do not do this, there are cases
278	! where convection stops at one level and starts at the next where we
279	! can break conservation of stuff (particularly tracers) significantly.
280
281	end do
282	ENDDO ! of DO l = l1, l2
283	zalpha=zalpha/(zhm*(sig(l1)-sig(l2+1)))
284	zum=zum/(sig(l1)-sig(l2+1))
285	zvm=zvm/(sig(l1)-sig(l2+1))
286	do iq=1,nq
287	zqm(iq) = zqm(iq)/(sig(l1)-sig(l2+1))
288	end do
289
290	IF(zalpha.GT.1.) THEN
291	zalpha=1.
292	ELSE
293	! IF(zalpha.LT.0.) STOP
294	IF(zalpha.LT.1.e-4) zalpha=1.e-4
295	ENDIF
296
297	DO l=l1,l2
298	zu2(i,l)=zu2(i,l)+zalpha*(zum-zu2(i,l))
299	zv2(i,l)=zv2(i,l)+zalpha*(zvm-zv2(i,l))
300	do iq=1,nq
301	! zq2(i,l,iq)=zq2(i,l,iq)+zalpha*(zqm(iq)-zq2(i,l,iq))
302	zq2(i,l,iq)=zqm(iq)
303	end do
304	ENDDO
305	if (ico2.ne.0) then
306	DO l=l1, l2
307	zhc(i,l) = zh2(i,l)(Azq2(i,l,ico2)+B)
308	ENDDO
309	end if
310
311
312	l2 = l2 + 1
313
314	END IF ! End of l1 to l2 instability treatment
315	! We now continue to test from l2 upwards
316
317	ENDDO ! End of upwards loop on l2
318
319
320	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
321	! check conservation
322	cadjncons=0.0
323	if(water)then
324	iq = igcm_h2o_vap
325	do l = 1, nlay
326	masse = (pplev(i,l) - pplev(i,l+1))/g
327	cadjncons = cadjncons +
328	& masse*(zq2(i,l,iq)-zq(i,l,iq))/ptimestep
329	end do
330	endif
331
332	if(cadjncons.lt.-1.e-6)then
333	print*,'convadj has just crashed...'
334	print*,'i = ',i
335	print*,'l1 = ',l1
336	print*,'l2 = ',l2
337	print*,'cadjncons = ',cadjncons
338	do l = 1, nlay
339	print*,'dsig = ',dsig(l)
340	end do
341	do l = 1, nlay
342	print*,'dsig = ',dsig(l)
343	end do
344	do l = 1, nlay
345	print*,'sig = ',sig(l)
346	end do
347	do l = 1, nlay
348	print*,'pplay(ig,:) = ',pplay(i,l)
349	end do
350	do l = 1, nlay+1
351	print*,'pplev(ig,:) = ',pplev(i,l)
352	end do
353	do l = 1, nlay
354	print*,'ph(ig,:) = ',ph(i,l)
355	end do
356	do l = 1, nlay
357	print*,'zh(ig,:) = ',zh(i,l)
358	end do
359	do l = 1, nlay
360	print*,'zh2(ig,:) = ',zh2(i,l)
361	end do
362	do l = 1, nlay
363	print*,'zq(ig,:,vap) = ',zq(i,l,igcm_h2o_vap)
364	end do
365	do l = 1, nlay
366	print*,'zq2(ig,:,vap) = ',zq2(i,l,igcm_h2o_vap)
367	end do
368	print*,'zqm(vap) = ',zqm(igcm_h2o_vap)
369	print*,'jadrs=',jadrs
370
371	call abort_physic("convadj","crashed",1)
372	endif
373	!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
374
375	ENDDO ! of DO jj = 1, jcnt ! loop on every convective grid point
376
377
378	DO l=1,nlay
379	DO ig=1,ngrid
380	pdhadj(ig,l)=(zh2(ig,l)-zh(ig,l))/ptimestep
381	pduadj(ig,l)=(zu2(ig,l)-zu(ig,l))/ptimestep
382	pdvadj(ig,l)=(zv2(ig,l)-zv(ig,l))/ptimestep
383	ENDDO
384	ENDDO
385
386	pdqadj(1:ngrid,1:nlay,1:nq)=(zq2(1:ngrid,1:nlay,1:nq)
387	& -zq(1:ngrid,1:nlay,1:nq))/ptimestep
388
389	end
390

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