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timemanager.f90 @ 2bec33e

10.4.1_peseiGFS_025bugfixes+enhancementsdevrelease-10release-10.4.1scaling-bugunivie

Last change on this file since 2bec33e was 2bec33e, checked in by Sabine <sabine.eckhardt@…>, 7 years ago
resolved kernel merge: removed all uskernel
Property mode set to `100644`
File size: 29.0 KB

Line
1	!**********************************************************************
2	! Copyright 1998,1999,2000,2001,2002,2005,2007,2008,2009,2010 *
3	! Andreas Stohl, Petra Seibert, A. Frank, Gerhard Wotawa, *
4	! Caroline Forster, Sabine Eckhardt, John Burkhart, Harald Sodemann *
5	! *
6	! This file is part of FLEXPART. *
7	! *
8	! FLEXPART is free software: you can redistribute it and/or modify *
9	! it under the terms of the GNU General Public License as published by*
10	! the Free Software Foundation, either version 3 of the License, or *
11	! (at your option) any later version. *
12	! *
13	! FLEXPART is distributed in the hope that it will be useful, *
14	! but WITHOUT ANY WARRANTY; without even the implied warranty of *
15	! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16	! GNU General Public License for more details. *
17	! *
18	! You should have received a copy of the GNU General Public License *
19	! along with FLEXPART. If not, see <http://www.gnu.org/licenses/>. *
20	!**********************************************************************
21
22	subroutine timemanager
23
24	!*****************************************************************************
25	! *
26	! Handles the computation of trajectories, i.e. determines which *
27	! trajectories have to be computed at what time. *
28	! Manages dry+wet deposition routines, radioactive decay and the computation *
29	! of concentrations. *
30	! *
31	! Author: A. Stohl *
32	! *
33	! 20 May 1996 *
34	! *
35	!*****************************************************************************
36	! Changes, Bernd C. Krueger, Feb. 2001: *
37	! Call of convmix when new windfield is read *
38	!------------------------------------ *
39	! Changes Petra Seibert, Sept 2002 *
40	! fix wet scavenging problem *
41	! Code may not be correct for decay of deposition! *
42	! Changes Petra Seibert, Nov 2002 *
43	! call convection BEFORE new fields are read in BWD mode *
44	! Changes Caroline Forster, Feb 2005 *
45	! new interface between flexpart and convection scheme *
46	! Emanuel's latest subroutine convect43c.f is used *
47	! Changes Stefan Henne, Harald Sodemann, 2013-2014 *
48	! added netcdf output code *
49	! Changes Espen Sollum 2014 *
50	! For compatibility with MPI version, *
51	! variables uap,ucp,uzp,us,vs,ws,cbt now in module com_mod *
52	!*****************************************************************************
53	! *
54	! Variables: *
55	! DEP .true. if either wet or dry deposition is switched on *
56	! decay(maxspec) [1/s] decay constant for radioactive decay *
57	! DRYDEP .true. if dry deposition is switched on *
58	! ideltas [s] modelling period *
59	! itime [s] actual temporal position of calculation *
60	! ldeltat [s] time since computation of radioact. decay of depositions*
61	! loutaver [s] averaging period for concentration calculations *
62	! loutend [s] end of averaging for concentration calculations *
63	! loutnext [s] next time at which output fields shall be centered *
64	! loutsample [s] sampling interval for averaging of concentrations *
65	! loutstart [s] start of averaging for concentration calculations *
66	! loutstep [s] time interval for which concentrations shall be *
67	! calculated *
68	! npoint(maxpart) index, which starting point the trajectory has *
69	! starting positions of trajectories *
70	! nstop serves as indicator for fate of particles *
71	! in the particle loop *
72	! nstop1 serves as indicator for wind fields (see getfields) *
73	! outnum number of samples for each concentration calculation *
74	! outnum number of samples for each concentration calculation *
75	! prob probability of absorption at ground due to dry *
76	! deposition *
77	! WETDEP .true. if wet deposition is switched on *
78	! weight weight for each concentration sample (1/2 or 1) *
79	! uap(maxpart),ucp(maxpart),uzp(maxpart) = random velocities due to *
80	! turbulence *
81	! us(maxpart),vs(maxpart),ws(maxpart) = random velocities due to inter- *
82	! polation *
83	! xtra1(maxpart), ytra1(maxpart), ztra1(maxpart) = *
84	! spatial positions of trajectories *
85	! *
86	! Constants: *
87	! maxpart maximum number of trajectories *
88	! *
89	!*****************************************************************************
90
91	use unc_mod
92	use point_mod
93	use xmass_mod
94	use flux_mod
95	use outg_mod
96	use oh_mod
97	use par_mod
98	use com_mod
99	use netcdf_output_mod, only: concoutput_netcdf,concoutput_nest_netcdf,&
100	&concoutput_surf_netcdf,concoutput_surf_nest_netcdf
101
102	implicit none
103
104	integer :: j,ks,kp,l,n,itime=0,nstop,nstop1
105	! integer :: ksp
106	integer :: loutnext,loutstart,loutend
107	integer :: ix,jy,ldeltat,itage,nage,idummy
108	integer :: i_nan=0,ii_nan,total_nan_intl=0 !added by mc to check instability in CBL scheme
109	real :: outnum,weight,prob_rec(maxspec),prob(maxspec),decfact,wetscav(maxspec)
110	! real :: uap(maxpart),ucp(maxpart),uzp(maxpart)
111	! real :: us(maxpart),vs(maxpart),ws(maxpart)
112	! integer(kind=2) :: cbt(maxpart)
113	real(sp) :: gridtotalunc
114	real(dep_prec) :: drydeposit(maxspec),wetgridtotalunc,drygridtotalunc
115	real :: xold,yold,zold,xmassfract
116	real :: grfraction(3)
117	real, parameter :: e_inv = 1.0/exp(1.0)
118
119	!double precision xm(maxspec,maxpointspec_act),
120	! + xm_depw(maxspec,maxpointspec_act),
121	! + xm_depd(maxspec,maxpointspec_act)
122
123
124	!open(88,file='TEST.dat')
125
126	! First output for time 0
127	!************************
128
129	loutnext=loutstep/2
130	outnum=0.
131	loutstart=loutnext-loutaver/2
132	loutend=loutnext+loutaver/2
133
134	! open(127,file=path(2)(1:length(2))//'depostat.dat'
135	! + ,form='unformatted')
136	!write (,) 'writing deposition statistics depostat.dat!'
137
138	!**********************************************************************
139	! Loop over the whole modelling period in time steps of mintime seconds
140	!**********************************************************************
141
142	!ZHG 2015
143	!CGZ-lifetime: set lifetime to 0
144	! checklifetime(:,:)=0
145	! species_lifetime(:,:)=0
146	! print*, 'Initialized lifetime'
147	!CGZ-lifetime: set lifetime to 0
148
149	if (lnokernel) write(,) 'Not using the kernel'
150	if (turboff) write(,) 'Turbulence switched off'
151
152	write(*,46) float(itime)/3600,itime,numpart
153
154	if (verbosity.gt.0) then
155	write (,) 'timemanager> starting simulation'
156	if (verbosity.gt.1) then
157	CALL SYSTEM_CLOCK(count_clock)
158	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
159	endif
160	endif
161
162	do itime=0,ideltas,lsynctime
163
164	! Computation of wet deposition, OH reaction and mass transfer
165	! between two species every lsynctime seconds
166	! maybe wet depo frequency can be relaxed later but better be on safe side
167	! wetdepo must be called BEFORE new fields are read in but should not
168	! be called in the very beginning before any fields are loaded, or
169	! before particles are in the system
170	! Code may not be correct for decay of deposition
171	! changed by Petra Seibert 9/02
172	!********************************************************************
173
174	if (WETDEP .and. itime .ne. 0 .and. numpart .gt. 0) then
175	if (verbosity.gt.0) then
176	write (,) 'timemanager> call wetdepo'
177	endif
178	call wetdepo(itime,lsynctime,loutnext)
179	endif
180
181	if (OHREA .and. itime .ne. 0 .and. numpart .gt. 0) &
182	call ohreaction(itime,lsynctime,loutnext)
183
184	if (ASSSPEC .and. itime .ne. 0 .and. numpart .gt. 0) then
185	stop 'associated species not yet implemented!'
186	! call transferspec(itime,lsynctime,loutnext)
187	endif
188
189	! compute convection for backward runs
190	!*************************************
191
192	if ((ldirect.eq.-1).and.(lconvection.eq.1).and.(itime.lt.0)) then
193	if (verbosity.gt.0) then
194	write (,) 'timemanager> call convmix -- backward'
195	endif
196	call convmix(itime)
197	if (verbosity.gt.1) then
198	!CALL SYSTEM_CLOCK(count_clock, count_rate, count_max)
199	CALL SYSTEM_CLOCK(count_clock)
200	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
201	endif
202	endif
203
204	! Get necessary wind fields if not available
205	!*******************************************
206	if (verbosity.gt.0) then
207	write (,) 'timemanager> call getfields'
208	endif
209	call getfields(itime,nstop1)
210	if (verbosity.gt.1) then
211	CALL SYSTEM_CLOCK(count_clock)
212	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
213	endif
214	if (nstop1.gt.1) stop 'NO METEO FIELDS AVAILABLE'
215
216	! Get hourly OH fields if not available
217	!****************************************************
218	if (OHREA) then
219	if (verbosity.gt.0) then
220	write (,) 'timemanager> call gethourlyOH'
221	endif
222	call gethourlyOH(itime)
223	if (verbosity.gt.1) then
224	CALL SYSTEM_CLOCK(count_clock)
225	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
226	endif
227	endif
228
229	! Release particles
230	!******************
231
232	if (verbosity.gt.0) then
233	write (,) 'timemanager> Release particles'
234	endif
235
236	if (mdomainfill.ge.1) then
237	if (itime.eq.0) then
238	if (verbosity.gt.0) then
239	write (,) 'timemanager> call init_domainfill'
240	endif
241	call init_domainfill
242	else
243	if (verbosity.gt.0) then
244	write (,) 'timemanager> call boundcond_domainfill'
245	endif
246	call boundcond_domainfill(itime,loutend)
247	endif
248	else
249	if (verbosity.gt.0) then
250	print*,'call releaseparticles'
251	endif
252	call releaseparticles(itime)
253	if (verbosity.gt.1) then
254	CALL SYSTEM_CLOCK(count_clock)
255	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
256	endif
257	endif
258
259
260	! Compute convective mixing for forward runs
261	! for backward runs it is done before next windfield is read in
262	!**************************************************************
263
264	if ((ldirect.eq.1).and.(lconvection.eq.1)) then
265	if (verbosity.gt.0) then
266	write (,) 'timemanager> call convmix -- forward'
267	endif
268	call convmix(itime)
269	endif
270
271	! If middle of averaging period of output fields is reached, accumulated
272	! deposited mass radioactively decays
273	!***********************************************************************
274
275	if (DEP.and.(itime.eq.loutnext).and.(ldirect.gt.0)) then
276	do ks=1,nspec
277	do kp=1,maxpointspec_act
278	if (decay(ks).gt.0.) then
279	do nage=1,nageclass
280	do l=1,nclassunc
281	! Mother output grid
282	do jy=0,numygrid-1
283	do ix=0,numxgrid-1
284	wetgridunc(ix,jy,ks,kp,l,nage)= &
285	wetgridunc(ix,jy,ks,kp,l,nage)* &
286	exp(-1.outstepdecay(ks))
287	drygridunc(ix,jy,ks,kp,l,nage)= &
288	drygridunc(ix,jy,ks,kp,l,nage)* &
289	exp(-1.outstepdecay(ks))
290	end do
291	end do
292	! Nested output grid
293	if (nested_output.eq.1) then
294	do jy=0,numygridn-1
295	do ix=0,numxgridn-1
296	wetgriduncn(ix,jy,ks,kp,l,nage)= &
297	wetgriduncn(ix,jy,ks,kp,l,nage)* &
298	exp(-1.outstepdecay(ks))
299	drygriduncn(ix,jy,ks,kp,l,nage)= &
300	drygriduncn(ix,jy,ks,kp,l,nage)* &
301	exp(-1.outstepdecay(ks))
302	end do
303	end do
304	endif
305	end do
306	end do
307	endif
308	end do
309	end do
310	endif
311
312	!!! CHANGE: These lines may be switched on to check the conservation
313	!!! of mass within FLEXPART
314	! if (itime.eq.loutnext) then
315	! do 247 ksp=1, nspec
316	! do 247 kp=1, maxpointspec_act
317	!47 xm(ksp,kp)=0.
318
319	! do 249 ksp=1, nspec
320	! do 249 j=1,numpart
321	! if (ioutputforeachrelease.eq.1) then
322	! kp=npoint(j)
323	! else
324	! kp=1
325	! endif
326	! if (itra1(j).eq.itime) then
327	! xm(ksp,kp)=xm(ksp,kp)+xmass1(j,ksp)
328	! write(,) 'xmass: ',xmass1(j,ksp),j,ksp,nspec
329	! endif
330	!49 continue
331	! do 248 ksp=1,nspec
332	! do 248 kp=1,maxpointspec_act
333	! xm_depw(ksp,kp)=0.
334	! xm_depd(ksp,kp)=0.
335	! do 248 nage=1,nageclass
336	! do 248 ix=0,numxgrid-1
337	! do 248 jy=0,numygrid-1
338	! do 248 l=1,nclassunc
339	! xm_depw(ksp,kp)=xm_depw(ksp,kp)
340	! + +wetgridunc(ix,jy,ksp,kp,l,nage)
341	!48 xm_depd(ksp,kp)=xm_depd(ksp,kp)
342	! + +drygridunc(ix,jy,ksp,kp,l,nage)
343	! do 246 ksp=1,nspec
344	!46 write(88,'(2i10,3e12.3)')
345	! + itime,ksp,(xm(ksp,kp),kp=1,maxpointspec_act),
346	! + (xm_depw(ksp,kp),kp=1,maxpointspec_act),
347	! + (xm_depd(ksp,kp),kp=1,maxpointspec_act)
348	! endif
349	!!! CHANGE
350
351
352
353	! Check whether concentrations are to be calculated
354	!**************************************************
355
356	if ((ldirectitime.ge.ldirectloutstart).and. &
357	(ldirectitime.le.ldirectloutend)) then ! add to grid
358	if (mod(itime-loutstart,loutsample).eq.0) then
359
360	! If we are exactly at the start or end of the concentration averaging interval,
361	! give only half the weight to this sample
362	!*****************************************************************************
363
364	if ((itime.eq.loutstart).or.(itime.eq.loutend)) then
365	weight=0.5
366	else
367	weight=1.0
368	endif
369	outnum=outnum+weight
370	call conccalc(itime,weight)
371	endif
372
373
374	if ((mquasilag.eq.1).and.(itime.eq.(loutstart+loutend)/2)) &
375	call partoutput_short(itime) ! dump particle positions in extremely compressed format
376
377
378	! Output and reinitialization of grid
379	! If necessary, first sample of new grid is also taken
380	!*****************************************************
381
382	if ((itime.eq.loutend).and.(outnum.gt.0.)) then
383	if ((iout.le.3.).or.(iout.eq.5)) then
384	if (surf_only.ne.1) then
385	if (lnetcdfout.eq.1) then
386	call concoutput_netcdf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
387	else
388	call concoutput(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
389	endif
390	else
391	if (verbosity.eq.1) then
392	print*,'call concoutput_surf '
393	call system_clock(count_clock)
394	write(,) 'system clock',count_clock - count_clock0
395	endif
396	if (lnetcdfout.eq.1) then
397	call concoutput_surf_netcdf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
398	else
399	call concoutput_surf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
400	if (verbosity.eq.1) then
401	print*,'called concoutput_surf '
402	call system_clock(count_clock)
403	write(,) 'system clock',count_clock - count_clock0
404	endif
405	endif
406	endif
407
408	if (nested_output .eq. 1) then
409	if (lnetcdfout.eq.0) then
410	if (surf_only.ne.1) then
411	call concoutput_nest(itime,outnum)
412	else
413	call concoutput_surf_nest(itime,outnum)
414	endif
415	else
416	if (surf_only.ne.1) then
417	call concoutput_nest_netcdf(itime,outnum)
418	else
419	call concoutput_surf_nest_netcdf(itime,outnum)
420	endif
421	endif
422	endif
423	outnum=0.
424	endif
425	if ((iout.eq.4).or.(iout.eq.5)) call plumetraj(itime)
426	if (iflux.eq.1) call fluxoutput(itime)
427	write(*,45) itime,numpart,gridtotalunc,wetgridtotalunc,drygridtotalunc
428
429	!CGZ-lifetime: output species lifetime
430	!ZHG
431	! write(,) 'Overview species lifetime in days', &
432	! real((species_lifetime(:,1)/species_lifetime(:,2))/real(3600.0*24.0))
433	! write(,) 'all info:',species_lifetime
434	!ZHG
435	!CGZ-lifetime: output species lifetime
436
437	!write(*,46) float(itime)/3600,itime,numpart
438	45 format(i13,' SECONDS SIMULATED: ',i13, ' PARTICLES: Uncertainty: ',3f7.3)
439	46 format(' Simulated ',f7.1,' hours (',i13,' s), ',i13, ' particles')
440	if (ipout.ge.1) call partoutput(itime) ! dump particle positions
441	loutnext=loutnext+loutstep
442	loutstart=loutnext-loutaver/2
443	loutend=loutnext+loutaver/2
444	if (itime.eq.loutstart) then
445	weight=0.5
446	outnum=outnum+weight
447	call conccalc(itime,weight)
448	endif
449
450
451	! Check, whether particles are to be split:
452	! If so, create new particles and attribute all information from the old
453	! particles also to the new ones; old and new particles both get half the
454	! mass of the old ones
455	!************************************************************************
456
457	if (ldirectitime.ge.ldirectitsplit) then
458	n=numpart
459	do j=1,numpart
460	if (ldirectitime.ge.ldirectitrasplit(j)) then
461	if (n.lt.maxpart) then
462	n=n+1
463	itrasplit(j)=2*(itrasplit(j)-itramem(j))+itramem(j)
464	itrasplit(n)=itrasplit(j)
465	itramem(n)=itramem(j)
466	itra1(n)=itra1(j)
467	idt(n)=idt(j)
468	npoint(n)=npoint(j)
469	nclass(n)=nclass(j)
470	xtra1(n)=xtra1(j)
471	ytra1(n)=ytra1(j)
472	ztra1(n)=ztra1(j)
473	uap(n)=uap(j)
474	ucp(n)=ucp(j)
475	uzp(n)=uzp(j)
476	us(n)=us(j)
477	vs(n)=vs(j)
478	ws(n)=ws(j)
479	cbt(n)=cbt(j)
480	do ks=1,nspec
481	xmass1(j,ks)=xmass1(j,ks)/2.
482	xmass1(n,ks)=xmass1(j,ks)
483	end do
484	endif
485	endif
486	end do
487	numpart=n
488	endif
489	endif
490	endif
491
492
493	if (itime.eq.ideltas) exit ! almost finished
494
495	! Compute interval since radioactive decay of deposited mass was computed
496	!************************************************************************
497
498	if (itime.lt.loutnext) then
499	ldeltat=itime-(loutnext-loutstep)
500	else ! first half of next interval
501	ldeltat=itime-loutnext
502	endif
503
504
505	! Loop over all particles
506	!************************
507	! Various variables for testing reason of CBL scheme, by mc
508	well_mixed_vector=0. !erase vector to test well mixed condition: modified by mc
509	well_mixed_norm=0. !erase normalization to test well mixed condition: modified by mc
510	avg_ol=0.
511	avg_wst=0.
512	avg_h=0.
513	avg_air_dens=0. !erase vector to obtain air density at particle positions: modified by mc
514	!-----------------------------------------------------------------------------
515	do j=1,numpart
516
517
518	! If integration step is due, do it
519	!**********************************
520
521	if (itra1(j).eq.itime) then
522
523	if (ioutputforeachrelease.eq.1) then
524	kp=npoint(j)
525	else
526	kp=1
527	endif
528	! Determine age class of the particle
529	itage=abs(itra1(j)-itramem(j))
530	do nage=1,nageclass
531	if (itage.lt.lage(nage)) exit
532	end do
533
534	! Initialize newly released particle
535	!***********************************
536
537	if ((itramem(j).eq.itime).or.(itime.eq.0)) &
538	call initialize(itime,idt(j),uap(j),ucp(j),uzp(j), &
539	us(j),vs(j),ws(j),xtra1(j),ytra1(j),ztra1(j),cbt(j))
540
541	! Memorize particle positions
542	!****************************
543
544	xold=xtra1(j)
545	yold=ytra1(j)
546	zold=ztra1(j)
547
548
549	! RECEPTOR: dry/wet depovel
550	!****************************
551	! Before the particle is moved
552	! the calculation of the scavenged mass shall only be done once after release
553	! xscav_frac1 was initialised with a negative value
554
555	if (DRYBKDEP) then
556	do ks=1,nspec
557	if ((xscav_frac1(j,ks).lt.0)) then
558	call get_vdep_prob(itime,xtra1(j),ytra1(j),ztra1(j),prob_rec)
559	if (DRYDEPSPEC(ks)) then ! dry deposition
560	xscav_frac1(j,ks)=prob_rec(ks)
561	else
562	xmass1(j,ks)=0.
563	xscav_frac1(j,ks)=0.
564	endif
565	endif
566	enddo
567	endif
568
569	if (WETBKDEP) then
570	do ks=1,nspec
571	if ((xscav_frac1(j,ks).lt.0)) then
572	call get_wetscav(itime,lsynctime,loutnext,j,ks,grfraction,idummy,idummy,wetscav)
573	if (wetscav(ks).gt.0) then
574	xscav_frac1(j,ks)=wetscav(ks)* &
575	(zpoint2(npoint(j))-zpoint1(npoint(j)))*grfraction(1)
576	else
577	xmass1(j,ks)=0.
578	xscav_frac1(j,ks)=0.
579	endif
580	endif
581	enddo
582	endif
583
584	! Integrate Lagevin equation for lsynctime seconds
585	!*************************************************
586
587	if (verbosity.gt.0) then
588	if (j.eq.1) then
589	write (,) 'timemanager> call advance'
590	endif
591	endif
592
593	call advance(itime,npoint(j),idt(j),uap(j),ucp(j),uzp(j), &
594	us(j),vs(j),ws(j),nstop,xtra1(j),ytra1(j),ztra1(j),prob, &
595	cbt(j))
596	! write (,) 'advance: ',prob(1),xmass1(j,1),ztra1(j)
597
598	! Calculate the gross fluxes across layer interfaces
599	!***************************************************
600
601	if (iflux.eq.1) call calcfluxes(nage,j,xold,yold,zold)
602
603
604	! Determine, when next time step is due
605	! If trajectory is terminated, mark it
606	!**************************************
607
608	if (nstop.gt.1) then
609	if (linit_cond.ge.1) call initial_cond_calc(itime,j)
610	itra1(j)=-999999999
611	else
612	itra1(j)=itime+lsynctime
613
614
615	! Dry deposition and radioactive decay for each species
616	! Also check maximum (of all species) of initial mass remaining on the particle;
617	! if it is below a threshold value, terminate particle
618	!*****************************************************************************
619
620	xmassfract=0.
621	do ks=1,nspec
622	if (decay(ks).gt.0.) then ! radioactive decay
623	decfact=exp(-real(abs(lsynctime))*decay(ks))
624	else
625	decfact=1.
626	endif
627
628	if (DRYDEPSPEC(ks)) then ! dry deposition
629	drydeposit(ks)=xmass1(j,ks)prob(ks)decfact
630	xmass1(j,ks)=xmass1(j,ks)(1.-prob(ks))decfact
631	if (decay(ks).gt.0.) then ! correct for decay (see wetdepo)
632	drydeposit(ks)=drydeposit(ks)* &
633	exp(real(abs(ldeltat))*decay(ks))
634	endif
635	else ! no dry deposition
636	xmass1(j,ks)=xmass1(j,ks)*decfact
637	endif
638
639	! Skip check on mass fraction when npoint represents particle number
640	if (mdomainfill.eq.0.and.mquasilag.eq.0) then
641	if (xmass(npoint(j),ks).gt.0.) &
642	xmassfract=max(xmassfract,real(npart(npoint(j)))* &
643	xmass1(j,ks)/xmass(npoint(j),ks))
644	!ZHG 2015
645	!CGZ-lifetime: Check mass fraction left/save lifetime
646	! if(real(npart(npoint(j)))*xmass1(j,ks)/xmass(npoint(j),ks).lt.e_inv.and.checklifetime(j,ks).eq.0.)then
647	!Mass below 1% of initial >register lifetime
648	! checklifetime(j,ks)=abs(itra1(j)-itramem(j))
649	! species_lifetime(ks,1)=species_lifetime(ks,1)+abs(itra1(j)-itramem(j))
650	! species_lifetime(ks,2)= species_lifetime(ks,2)+1
651	! endif
652	!CGZ-lifetime: Check mass fraction left/save lifetime
653	!ZHG 2015
654	else
655	xmassfract=1.0
656	end if
657	end do
658
659	if (xmassfract.lt.minmass) then ! terminate all particles carrying less mass
660	itra1(j)=-999999999
661	if (verbosity.gt.0) then
662	print*,'terminated particle ',j,' for small mass'
663	endif
664	endif
665
666	! Sabine Eckhardt, June 2008
667	! don't create depofield for backward runs
668	if (DRYDEP.AND.(ldirect.eq.1)) then
669	call drydepokernel(nclass(j),drydeposit,real(xtra1(j)), &
670	real(ytra1(j)),nage,kp)
671	if (nested_output.eq.1) call drydepokernel_nest( &
672	nclass(j),drydeposit,real(xtra1(j)),real(ytra1(j)), &
673	nage,kp)
674	endif
675
676	! Terminate trajectories that are older than maximum allowed age
677	!***************************************************************
678
679	if (abs(itra1(j)-itramem(j)).ge.lage(nageclass)) then
680	if (linit_cond.ge.1) call initial_cond_calc(itime+lsynctime,j)
681	itra1(j)=-999999999
682	if (verbosity.gt.0) then
683	print*,'terminated particle ',j,' for age'
684	endif
685	endif
686	endif
687
688	endif
689
690	end do !loop over particles
691
692	! Counter of "unstable" particle velocity during a time scale of
693	! maximumtl=20 minutes (defined in com_mod)
694	!***************************************************************
695
696	total_nan_intl=0
697	i_nan=i_nan+1 ! added by mc to count nan during a time of maxtl (i.e. maximum tl fixed here to 20 minutes, see com_mod)
698	sum_nan_count(i_nan)=nan_count
699	if (i_nan > maxtl/lsynctime) i_nan=1 !lsynctime must be <= maxtl
700	do ii_nan=1, (maxtl/lsynctime)
701	total_nan_intl=total_nan_intl+sum_nan_count(ii_nan)
702	end do
703	! Output to keep track of the numerical instabilities in CBL simulation and if
704	! they are compromising the final result (or not)
705	if (cblflag.eq.1) print *,j,itime,'nan_synctime',nan_count,'nan_tl',total_nan_intl
706
707	end do
708
709
710	! Complete the calculation of initial conditions for particles not yet terminated
711	!*****************************************************************************
712
713	do j=1,numpart
714	if (linit_cond.ge.1) call initial_cond_calc(itime,j)
715	end do
716
717	if (ipout.eq.2) call partoutput(itime) ! dump particle positions
718
719	if (linit_cond.ge.1) call initial_cond_output(itime) ! dump initial cond. field
720
721	!close(104)
722
723	! De-allocate memory and end
724	!***************************
725
726	if (iflux.eq.1) then
727	deallocate(flux)
728	endif
729	if (OHREA) then
730	deallocate(OH_field,OH_hourly,lonOH,latOH,altOH)
731	endif
732	if (ldirect.gt.0) then
733	deallocate(drygridunc,wetgridunc)
734	endif
735	deallocate(gridunc)
736	deallocate(xpoint1,xpoint2,ypoint1,ypoint2,zpoint1,zpoint2,xmass)
737	deallocate(ireleasestart,ireleaseend,npart,kindz)
738	deallocate(xmasssave)
739	if (nested_output.eq.1) then
740	deallocate(orooutn, arean, volumen)
741	if (ldirect.gt.0) then
742	deallocate(griduncn,drygriduncn,wetgriduncn)
743	endif
744	endif
745	deallocate(outheight,outheighthalf)
746	deallocate(oroout, area, volume)
747
748	end subroutine timemanager
749

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