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timemanager.f90 @ d56bfae

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

Last change on this file since d56bfae was d56bfae, checked in by Sabine <sabine.eckhardt@…>, 7 years ago
scavenging moved to before advance - for testing _timeama!
Property mode set to `100644`
File size: 28.9 KB

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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	write(*,46) float(itime)/3600,itime,numpart
150
151	if (verbosity.gt.0) then
152	write (,) 'timemanager> starting simulation'
153	if (verbosity.gt.1) then
154	CALL SYSTEM_CLOCK(count_clock)
155	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
156	endif
157	endif
158
159	do itime=0,ideltas,lsynctime
160
161	! Computation of wet deposition, OH reaction and mass transfer
162	! between two species every lsynctime seconds
163	! maybe wet depo frequency can be relaxed later but better be on safe side
164	! wetdepo must be called BEFORE new fields are read in but should not
165	! be called in the very beginning before any fields are loaded, or
166	! before particles are in the system
167	! Code may not be correct for decay of deposition
168	! changed by Petra Seibert 9/02
169	!********************************************************************
170
171	if (WETDEP .and. itime .ne. 0 .and. numpart .gt. 0) then
172	if (verbosity.gt.0) then
173	write (,) 'timemanager> call wetdepo'
174	endif
175	call wetdepo(itime,lsynctime,loutnext)
176	endif
177
178	if (OHREA .and. itime .ne. 0 .and. numpart .gt. 0) &
179	call ohreaction(itime,lsynctime,loutnext)
180
181	if (ASSSPEC .and. itime .ne. 0 .and. numpart .gt. 0) then
182	stop 'associated species not yet implemented!'
183	! call transferspec(itime,lsynctime,loutnext)
184	endif
185
186	! compute convection for backward runs
187	!*************************************
188
189	if ((ldirect.eq.-1).and.(lconvection.eq.1).and.(itime.lt.0)) then
190	if (verbosity.gt.0) then
191	write (,) 'timemanager> call convmix -- backward'
192	endif
193	call convmix(itime)
194	if (verbosity.gt.1) then
195	!CALL SYSTEM_CLOCK(count_clock, count_rate, count_max)
196	CALL SYSTEM_CLOCK(count_clock)
197	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
198	endif
199	endif
200
201	! Get necessary wind fields if not available
202	!*******************************************
203	if (verbosity.gt.0) then
204	write (,) 'timemanager> call getfields'
205	endif
206	call getfields(itime,nstop1)
207	if (verbosity.gt.1) then
208	CALL SYSTEM_CLOCK(count_clock)
209	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
210	endif
211	if (nstop1.gt.1) stop 'NO METEO FIELDS AVAILABLE'
212
213	! Get hourly OH fields if not available
214	!****************************************************
215	if (OHREA) then
216	if (verbosity.gt.0) then
217	write (,) 'timemanager> call gethourlyOH'
218	endif
219	call gethourlyOH(itime)
220	if (verbosity.gt.1) then
221	CALL SYSTEM_CLOCK(count_clock)
222	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
223	endif
224	endif
225
226	! Release particles
227	!******************
228
229	if (verbosity.gt.0) then
230	write (,) 'timemanager> Release particles'
231	endif
232
233	if (mdomainfill.ge.1) then
234	if (itime.eq.0) then
235	if (verbosity.gt.0) then
236	write (,) 'timemanager> call init_domainfill'
237	endif
238	call init_domainfill
239	else
240	if (verbosity.gt.0) then
241	write (,) 'timemanager> call boundcond_domainfill'
242	endif
243	call boundcond_domainfill(itime,loutend)
244	endif
245	else
246	if (verbosity.gt.0) then
247	print*,'call releaseparticles'
248	endif
249	call releaseparticles(itime)
250	if (verbosity.gt.1) then
251	CALL SYSTEM_CLOCK(count_clock)
252	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
253	endif
254	endif
255
256
257	! Compute convective mixing for forward runs
258	! for backward runs it is done before next windfield is read in
259	!**************************************************************
260
261	if ((ldirect.eq.1).and.(lconvection.eq.1)) then
262	if (verbosity.gt.0) then
263	write (,) 'timemanager> call convmix -- forward'
264	endif
265	call convmix(itime)
266	endif
267
268	! If middle of averaging period of output fields is reached, accumulated
269	! deposited mass radioactively decays
270	!***********************************************************************
271
272	if (DEP.and.(itime.eq.loutnext).and.(ldirect.gt.0)) then
273	do ks=1,nspec
274	do kp=1,maxpointspec_act
275	if (decay(ks).gt.0.) then
276	do nage=1,nageclass
277	do l=1,nclassunc
278	! Mother output grid
279	do jy=0,numygrid-1
280	do ix=0,numxgrid-1
281	wetgridunc(ix,jy,ks,kp,l,nage)= &
282	wetgridunc(ix,jy,ks,kp,l,nage)* &
283	exp(-1.outstepdecay(ks))
284	drygridunc(ix,jy,ks,kp,l,nage)= &
285	drygridunc(ix,jy,ks,kp,l,nage)* &
286	exp(-1.outstepdecay(ks))
287	end do
288	end do
289	! Nested output grid
290	if (nested_output.eq.1) then
291	do jy=0,numygridn-1
292	do ix=0,numxgridn-1
293	wetgriduncn(ix,jy,ks,kp,l,nage)= &
294	wetgriduncn(ix,jy,ks,kp,l,nage)* &
295	exp(-1.outstepdecay(ks))
296	drygriduncn(ix,jy,ks,kp,l,nage)= &
297	drygriduncn(ix,jy,ks,kp,l,nage)* &
298	exp(-1.outstepdecay(ks))
299	end do
300	end do
301	endif
302	end do
303	end do
304	endif
305	end do
306	end do
307	endif
308
309	!!! CHANGE: These lines may be switched on to check the conservation
310	!!! of mass within FLEXPART
311	! if (itime.eq.loutnext) then
312	! do 247 ksp=1, nspec
313	! do 247 kp=1, maxpointspec_act
314	!47 xm(ksp,kp)=0.
315
316	! do 249 ksp=1, nspec
317	! do 249 j=1,numpart
318	! if (ioutputforeachrelease.eq.1) then
319	! kp=npoint(j)
320	! else
321	! kp=1
322	! endif
323	! if (itra1(j).eq.itime) then
324	! xm(ksp,kp)=xm(ksp,kp)+xmass1(j,ksp)
325	! write(,) 'xmass: ',xmass1(j,ksp),j,ksp,nspec
326	! endif
327	!49 continue
328	! do 248 ksp=1,nspec
329	! do 248 kp=1,maxpointspec_act
330	! xm_depw(ksp,kp)=0.
331	! xm_depd(ksp,kp)=0.
332	! do 248 nage=1,nageclass
333	! do 248 ix=0,numxgrid-1
334	! do 248 jy=0,numygrid-1
335	! do 248 l=1,nclassunc
336	! xm_depw(ksp,kp)=xm_depw(ksp,kp)
337	! + +wetgridunc(ix,jy,ksp,kp,l,nage)
338	!48 xm_depd(ksp,kp)=xm_depd(ksp,kp)
339	! + +drygridunc(ix,jy,ksp,kp,l,nage)
340	! do 246 ksp=1,nspec
341	!46 write(88,'(2i10,3e12.3)')
342	! + itime,ksp,(xm(ksp,kp),kp=1,maxpointspec_act),
343	! + (xm_depw(ksp,kp),kp=1,maxpointspec_act),
344	! + (xm_depd(ksp,kp),kp=1,maxpointspec_act)
345	! endif
346	!!! CHANGE
347
348
349
350	! Check whether concentrations are to be calculated
351	!**************************************************
352
353	if ((ldirectitime.ge.ldirectloutstart).and. &
354	(ldirectitime.le.ldirectloutend)) then ! add to grid
355	if (mod(itime-loutstart,loutsample).eq.0) then
356
357	! If we are exactly at the start or end of the concentration averaging interval,
358	! give only half the weight to this sample
359	!*****************************************************************************
360
361	if ((itime.eq.loutstart).or.(itime.eq.loutend)) then
362	weight=0.5
363	else
364	weight=1.0
365	endif
366	outnum=outnum+weight
367	call conccalc(itime,weight)
368	endif
369
370
371	if ((mquasilag.eq.1).and.(itime.eq.(loutstart+loutend)/2)) &
372	call partoutput_short(itime) ! dump particle positions in extremely compressed format
373
374
375	! Output and reinitialization of grid
376	! If necessary, first sample of new grid is also taken
377	!*****************************************************
378
379	if ((itime.eq.loutend).and.(outnum.gt.0.)) then
380	if ((iout.le.3.).or.(iout.eq.5)) then
381	if (surf_only.ne.1) then
382	if (lnetcdfout.eq.1) then
383	call concoutput_netcdf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
384	else
385	call concoutput(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
386	endif
387	else
388	if (verbosity.eq.1) then
389	print*,'call concoutput_surf '
390	call system_clock(count_clock)
391	write(,) 'system clock',count_clock - count_clock0
392	endif
393	if (lnetcdfout.eq.1) then
394	call concoutput_surf_netcdf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
395	else
396	call concoutput_surf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
397	if (verbosity.eq.1) then
398	print*,'called concoutput_surf '
399	call system_clock(count_clock)
400	write(,) 'system clock',count_clock - count_clock0
401	endif
402	endif
403	endif
404
405	if (nested_output .eq. 1) then
406	if (lnetcdfout.eq.0) then
407	if (surf_only.ne.1) then
408	call concoutput_nest(itime,outnum)
409	else
410	call concoutput_surf_nest(itime,outnum)
411	endif
412	else
413	if (surf_only.ne.1) then
414	call concoutput_nest_netcdf(itime,outnum)
415	else
416	call concoutput_surf_nest_netcdf(itime,outnum)
417	endif
418	endif
419	endif
420	outnum=0.
421	endif
422	if ((iout.eq.4).or.(iout.eq.5)) call plumetraj(itime)
423	if (iflux.eq.1) call fluxoutput(itime)
424	write(*,45) itime,numpart,gridtotalunc,wetgridtotalunc,drygridtotalunc
425
426	!CGZ-lifetime: output species lifetime
427	!ZHG
428	! write(,) 'Overview species lifetime in days', &
429	! real((species_lifetime(:,1)/species_lifetime(:,2))/real(3600.0*24.0))
430	! write(,) 'all info:',species_lifetime
431	!ZHG
432	!CGZ-lifetime: output species lifetime
433
434	!write(*,46) float(itime)/3600,itime,numpart
435	45 format(i13,' SECONDS SIMULATED: ',i13, ' PARTICLES: Uncertainty: ',3f7.3)
436	46 format(' Simulated ',f7.1,' hours (',i13,' s), ',i13, ' particles')
437	if (ipout.ge.1) call partoutput(itime) ! dump particle positions
438	loutnext=loutnext+loutstep
439	loutstart=loutnext-loutaver/2
440	loutend=loutnext+loutaver/2
441	if (itime.eq.loutstart) then
442	weight=0.5
443	outnum=outnum+weight
444	call conccalc(itime,weight)
445	endif
446
447
448	! Check, whether particles are to be split:
449	! If so, create new particles and attribute all information from the old
450	! particles also to the new ones; old and new particles both get half the
451	! mass of the old ones
452	!************************************************************************
453
454	if (ldirectitime.ge.ldirectitsplit) then
455	n=numpart
456	do j=1,numpart
457	if (ldirectitime.ge.ldirectitrasplit(j)) then
458	if (n.lt.maxpart) then
459	n=n+1
460	itrasplit(j)=2*(itrasplit(j)-itramem(j))+itramem(j)
461	itrasplit(n)=itrasplit(j)
462	itramem(n)=itramem(j)
463	itra1(n)=itra1(j)
464	idt(n)=idt(j)
465	npoint(n)=npoint(j)
466	nclass(n)=nclass(j)
467	xtra1(n)=xtra1(j)
468	ytra1(n)=ytra1(j)
469	ztra1(n)=ztra1(j)
470	uap(n)=uap(j)
471	ucp(n)=ucp(j)
472	uzp(n)=uzp(j)
473	us(n)=us(j)
474	vs(n)=vs(j)
475	ws(n)=ws(j)
476	cbt(n)=cbt(j)
477	do ks=1,nspec
478	xmass1(j,ks)=xmass1(j,ks)/2.
479	xmass1(n,ks)=xmass1(j,ks)
480	end do
481	endif
482	endif
483	end do
484	numpart=n
485	endif
486	endif
487	endif
488
489
490	if (itime.eq.ideltas) exit ! almost finished
491
492	! Compute interval since radioactive decay of deposited mass was computed
493	!************************************************************************
494
495	if (itime.lt.loutnext) then
496	ldeltat=itime-(loutnext-loutstep)
497	else ! first half of next interval
498	ldeltat=itime-loutnext
499	endif
500
501
502	! Loop over all particles
503	!************************
504	! Various variables for testing reason of CBL scheme, by mc
505	well_mixed_vector=0. !erase vector to test well mixed condition: modified by mc
506	well_mixed_norm=0. !erase normalization to test well mixed condition: modified by mc
507	avg_ol=0.
508	avg_wst=0.
509	avg_h=0.
510	avg_air_dens=0. !erase vector to obtain air density at particle positions: modified by mc
511	!-----------------------------------------------------------------------------
512	do j=1,numpart
513
514
515	! If integration step is due, do it
516	!**********************************
517
518	if (itra1(j).eq.itime) then
519
520	if (ioutputforeachrelease.eq.1) then
521	kp=npoint(j)
522	else
523	kp=1
524	endif
525	! Determine age class of the particle
526	itage=abs(itra1(j)-itramem(j))
527	do nage=1,nageclass
528	if (itage.lt.lage(nage)) exit
529	end do
530
531	! Initialize newly released particle
532	!***********************************
533
534	if ((itramem(j).eq.itime).or.(itime.eq.0)) &
535	call initialize(itime,idt(j),uap(j),ucp(j),uzp(j), &
536	us(j),vs(j),ws(j),xtra1(j),ytra1(j),ztra1(j),cbt(j))
537
538	! Memorize particle positions
539	!****************************
540
541	xold=xtra1(j)
542	yold=ytra1(j)
543	zold=ztra1(j)
544
545
546	! RECEPTOR: dry/wet depovel
547	!****************************
548	! Before the particle is moved
549	! the calculation of the scavenged mass shall only be done once after release
550	! xscav_frac1 was initialised with a negative value
551
552	if (DRYBKDEP) then
553	do ks=1,nspec
554	if ((xscav_frac1(j,ks).lt.0)) then
555	call get_vdep_prob(itime,xtra1(j),ytra1(j),ztra1(j),prob_rec)
556	if (DRYDEPSPEC(ks)) then ! dry deposition
557	xscav_frac1(j,ks)=prob_rec(ks)
558	else
559	xmass1(j,ks)=0
560	xscav_frac1(j,ks)=0.
561	endif
562	endif
563	enddo
564	endif
565
566	if (WETBKDEP) then
567	do ks=1,nspec
568	if ((xscav_frac1(j,ks).lt.0)) then
569	call get_wetscav(itime,lsynctime,loutnext,j,ks,grfraction,idummy,idummy,wetscav)
570	if (wetscav(ks).gt.0) then
571	xscav_frac1(j,ks)=wetscav(ks)* &
572	(zpoint2(npoint(j))-zpoint1(npoint(j)))*grfraction(1)
573	else
574	xmass1(j,ks)=0.
575	xscav_frac1(j,ks)=0.
576	endif
577	endif
578	enddo
579	endif
580
581	! Integrate Lagevin equation for lsynctime seconds
582	!*************************************************
583
584	if (verbosity.gt.0) then
585	if (j.eq.1) then
586	write (,) 'timemanager> call advance'
587	endif
588	endif
589
590	call advance(itime,npoint(j),idt(j),uap(j),ucp(j),uzp(j), &
591	us(j),vs(j),ws(j),nstop,xtra1(j),ytra1(j),ztra1(j),prob, &
592	cbt(j))
593	! write (,) 'advance: ',prob(1),xmass1(j,1),ztra1(j)
594
595	! Calculate the gross fluxes across layer interfaces
596	!***************************************************
597
598	if (iflux.eq.1) call calcfluxes(nage,j,xold,yold,zold)
599
600
601	! Determine, when next time step is due
602	! If trajectory is terminated, mark it
603	!**************************************
604
605	if (nstop.gt.1) then
606	if (linit_cond.ge.1) call initial_cond_calc(itime,j)
607	itra1(j)=-999999999
608	else
609	itra1(j)=itime+lsynctime
610
611
612	! Dry deposition and radioactive decay for each species
613	! Also check maximum (of all species) of initial mass remaining on the particle;
614	! if it is below a threshold value, terminate particle
615	!*****************************************************************************
616
617	xmassfract=0.
618	do ks=1,nspec
619	if (decay(ks).gt.0.) then ! radioactive decay
620	decfact=exp(-real(abs(lsynctime))*decay(ks))
621	else
622	decfact=1.
623	endif
624
625	if (DRYDEPSPEC(ks)) then ! dry deposition
626	drydeposit(ks)=xmass1(j,ks)prob(ks)decfact
627	xmass1(j,ks)=xmass1(j,ks)(1.-prob(ks))decfact
628	if (decay(ks).gt.0.) then ! correct for decay (see wetdepo)
629	drydeposit(ks)=drydeposit(ks)* &
630	exp(real(abs(ldeltat))*decay(ks))
631	endif
632	else ! no dry deposition
633	xmass1(j,ks)=xmass1(j,ks)*decfact
634	endif
635
636	! Skip check on mass fraction when npoint represents particle number
637	if (mdomainfill.eq.0.and.mquasilag.eq.0) then
638	if (xmass(npoint(j),ks).gt.0.) &
639	xmassfract=max(xmassfract,real(npart(npoint(j)))* &
640	xmass1(j,ks)/xmass(npoint(j),ks))
641	!ZHG 2015
642	!CGZ-lifetime: Check mass fraction left/save lifetime
643	! if(real(npart(npoint(j)))*xmass1(j,ks)/xmass(npoint(j),ks).lt.e_inv.and.checklifetime(j,ks).eq.0.)then
644	!Mass below 1% of initial >register lifetime
645	! checklifetime(j,ks)=abs(itra1(j)-itramem(j))
646	! species_lifetime(ks,1)=species_lifetime(ks,1)+abs(itra1(j)-itramem(j))
647	! species_lifetime(ks,2)= species_lifetime(ks,2)+1
648	! endif
649	!CGZ-lifetime: Check mass fraction left/save lifetime
650	!ZHG 2015
651	else
652	xmassfract=1.0
653	end if
654	end do
655
656	if (xmassfract.lt.minmass) then ! terminate all particles carrying less mass
657	itra1(j)=-999999999
658	if (verbosity.gt.0) then
659	print*,'terminated particle ',j,' for small mass'
660	endif
661	endif
662
663	! Sabine Eckhardt, June 2008
664	! don't create depofield for backward runs
665	if (DRYDEP.AND.(ldirect.eq.1)) then
666	call drydepokernel(nclass(j),drydeposit,real(xtra1(j)), &
667	real(ytra1(j)),nage,kp)
668	if (nested_output.eq.1) call drydepokernel_nest( &
669	nclass(j),drydeposit,real(xtra1(j)),real(ytra1(j)), &
670	nage,kp)
671	endif
672
673	! Terminate trajectories that are older than maximum allowed age
674	!***************************************************************
675
676	if (abs(itra1(j)-itramem(j)).ge.lage(nageclass)) then
677	if (linit_cond.ge.1) call initial_cond_calc(itime+lsynctime,j)
678	itra1(j)=-999999999
679	if (verbosity.gt.0) then
680	print*,'terminated particle ',j,' for age'
681	endif
682	endif
683	endif
684
685	endif
686
687	end do !loop over particles
688
689	! Counter of "unstable" particle velocity during a time scale of
690	! maximumtl=20 minutes (defined in com_mod)
691	!***************************************************************
692
693	total_nan_intl=0
694	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)
695	sum_nan_count(i_nan)=nan_count
696	if (i_nan > maxtl/lsynctime) i_nan=1 !lsynctime must be <= maxtl
697	do ii_nan=1, (maxtl/lsynctime)
698	total_nan_intl=total_nan_intl+sum_nan_count(ii_nan)
699	end do
700	! Output to keep track of the numerical instabilities in CBL simulation and if
701	! they are compromising the final result (or not)
702	if (cblflag.eq.1) print *,j,itime,'nan_synctime',nan_count,'nan_tl',total_nan_intl
703
704	end do
705
706
707	! Complete the calculation of initial conditions for particles not yet terminated
708	!*****************************************************************************
709
710	do j=1,numpart
711	if (linit_cond.ge.1) call initial_cond_calc(itime,j)
712	end do
713
714	if (ipout.eq.2) call partoutput(itime) ! dump particle positions
715
716	if (linit_cond.ge.1) call initial_cond_output(itime) ! dump initial cond. field
717
718	!close(104)
719
720	! De-allocate memory and end
721	!***************************
722
723	if (iflux.eq.1) then
724	deallocate(flux)
725	endif
726	if (OHREA) then
727	deallocate(OH_field,OH_hourly,lonOH,latOH,altOH)
728	endif
729	if (ldirect.gt.0) then
730	deallocate(drygridunc,wetgridunc)
731	endif
732	deallocate(gridunc)
733	deallocate(xpoint1,xpoint2,ypoint1,ypoint2,zpoint1,zpoint2,xmass)
734	deallocate(ireleasestart,ireleaseend,npart,kindz)
735	deallocate(xmasssave)
736	if (nested_output.eq.1) then
737	deallocate(orooutn, arean, volumen)
738	if (ldirect.gt.0) then
739	deallocate(griduncn,drygriduncn,wetgriduncn)
740	endif
741	endif
742	deallocate(outheight,outheighthalf)
743	deallocate(oroout, area, volume)
744
745	end subroutine timemanager
746

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