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timemanager.f90 @ 2363b24

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

Last change on this file since 2363b24 was 2363b24, checked in by Sabine <sabine.eckhardt@…>, 7 years ago
added hmix interpolation option to com_mod
Property mode set to `100644`
File size: 29.1 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
135	!**********************************************************************
136	! Loop over the whole modelling period in time steps of mintime seconds
137	!**********************************************************************
138
139	!ZHG 2015
140	!CGZ-lifetime: set lifetime to 0
141	! checklifetime(:,:)=0
142	! species_lifetime(:,:)=0
143	! print*, 'Initialized lifetime'
144	!CGZ-lifetime: set lifetime to 0
145
146	if (interpolhmix) write(,) 'Interpolating hmix'
147
148	write(*,46) float(itime)/3600,itime,numpart
149
150	if (verbosity.gt.0) then
151	write (,) 'timemanager> starting simulation'
152	if (verbosity.gt.1) then
153	CALL SYSTEM_CLOCK(count_clock)
154	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
155	endif
156	endif
157
158	do itime=0,ideltas,lsynctime
159
160	! Computation of wet deposition, OH reaction and mass transfer
161	! between two species every lsynctime seconds
162	! maybe wet depo frequency can be relaxed later but better be on safe side
163	! wetdepo must be called BEFORE new fields are read in but should not
164	! be called in the very beginning before any fields are loaded, or
165	! before particles are in the system
166	! Code may not be correct for decay of deposition
167	! changed by Petra Seibert 9/02
168	!********************************************************************
169
170	if (WETDEP .and. itime .ne. 0 .and. numpart .gt. 0) then
171	if (verbosity.gt.0) then
172	write (,) 'timemanager> call wetdepo'
173	endif
174	call wetdepo(itime,lsynctime,loutnext)
175	endif
176
177	if (OHREA .and. itime .ne. 0 .and. numpart .gt. 0) &
178	call ohreaction(itime,lsynctime,loutnext)
179
180	if (ASSSPEC .and. itime .ne. 0 .and. numpart .gt. 0) then
181	stop 'associated species not yet implemented!'
182	! call transferspec(itime,lsynctime,loutnext)
183	endif
184
185	! compute convection for backward runs
186	!*************************************
187
188	if ((ldirect.eq.-1).and.(lconvection.eq.1).and.(itime.lt.0)) then
189	if (verbosity.gt.0) then
190	write (,) 'timemanager> call convmix -- backward'
191	endif
192	call convmix(itime)
193	if (verbosity.gt.1) then
194	!CALL SYSTEM_CLOCK(count_clock, count_rate, count_max)
195	CALL SYSTEM_CLOCK(count_clock)
196	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
197	endif
198	endif
199
200	! Get necessary wind fields if not available
201	!*******************************************
202	if (verbosity.gt.0) then
203	write (,) 'timemanager> call getfields'
204	endif
205	call getfields(itime,nstop1)
206	if (verbosity.gt.1) then
207	CALL SYSTEM_CLOCK(count_clock)
208	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
209	endif
210	if (nstop1.gt.1) stop 'NO METEO FIELDS AVAILABLE'
211
212	! Get hourly OH fields if not available
213	!****************************************************
214	if (OHREA) then
215	if (verbosity.gt.0) then
216	write (,) 'timemanager> call gethourlyOH'
217	endif
218	call gethourlyOH(itime)
219	if (verbosity.gt.1) then
220	CALL SYSTEM_CLOCK(count_clock)
221	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
222	endif
223	endif
224
225	! Release particles
226	!******************
227
228	if (verbosity.gt.0) then
229	write (,) 'timemanager> Release particles'
230	endif
231
232	if (mdomainfill.ge.1) then
233	if (itime.eq.0) then
234	if (verbosity.gt.0) then
235	write (,) 'timemanager> call init_domainfill'
236	endif
237	call init_domainfill
238	else
239	if (verbosity.gt.0) then
240	write (,) 'timemanager> call boundcond_domainfill'
241	endif
242	call boundcond_domainfill(itime,loutend)
243	endif
244	else
245	if (verbosity.gt.0) then
246	print*,'call releaseparticles'
247	endif
248	call releaseparticles(itime)
249	if (verbosity.gt.1) then
250	CALL SYSTEM_CLOCK(count_clock)
251	WRITE(,) 'timemanager> SYSTEM CLOCK',(count_clock - count_clock0)/real(count_rate)
252	endif
253	endif
254
255
256	! Compute convective mixing for forward runs
257	! for backward runs it is done before next windfield is read in
258	!**************************************************************
259
260	if ((ldirect.eq.1).and.(lconvection.eq.1)) then
261	if (verbosity.gt.0) then
262	write (,) 'timemanager> call convmix -- forward'
263	endif
264	call convmix(itime)
265	endif
266
267	! If middle of averaging period of output fields is reached, accumulated
268	! deposited mass radioactively decays
269	!***********************************************************************
270
271	if (DEP.and.(itime.eq.loutnext).and.(ldirect.gt.0)) then
272	do ks=1,nspec
273	do kp=1,maxpointspec_act
274	if (decay(ks).gt.0.) then
275	do nage=1,nageclass
276	do l=1,nclassunc
277	! Mother output grid
278	do jy=0,numygrid-1
279	do ix=0,numxgrid-1
280	wetgridunc(ix,jy,ks,kp,l,nage)= &
281	wetgridunc(ix,jy,ks,kp,l,nage)* &
282	exp(-1.outstepdecay(ks))
283	drygridunc(ix,jy,ks,kp,l,nage)= &
284	drygridunc(ix,jy,ks,kp,l,nage)* &
285	exp(-1.outstepdecay(ks))
286	end do
287	end do
288	! Nested output grid
289	if (nested_output.eq.1) then
290	do jy=0,numygridn-1
291	do ix=0,numxgridn-1
292	wetgriduncn(ix,jy,ks,kp,l,nage)= &
293	wetgriduncn(ix,jy,ks,kp,l,nage)* &
294	exp(-1.outstepdecay(ks))
295	drygriduncn(ix,jy,ks,kp,l,nage)= &
296	drygriduncn(ix,jy,ks,kp,l,nage)* &
297	exp(-1.outstepdecay(ks))
298	end do
299	end do
300	endif
301	end do
302	end do
303	endif
304	end do
305	end do
306	endif
307
308	!!! CHANGE: These lines may be switched on to check the conservation
309	!!! of mass within FLEXPART
310	! if (itime.eq.loutnext) then
311	! do 247 ksp=1, nspec
312	! 247 kp=1, maxpointspec_act
313	!47 xm(ksp,kp)=0.
314
315	! do 249 ksp=1, nspec
316	! do 249 j=1,numpart
317	! if (ioutputforeachrelease.eq.1) then
318	! kp=npoint(j)
319	! else
320	! kp=1
321	! endif
322	! if (itra1(j).eq.itime) then
323	! xm(ksp,kp)=xm(ksp,kp)+xmass1(j,ksp)
324	! write(,) 'xmass: ',xmass1(j,ksp),j,ksp,nspec
325	! endif
326	!49 continue
327	! do 248 ksp=1,nspec
328	! do 248 kp=1,maxpointspec_act
329	! xm_depw(ksp,kp)=0.
330	! xm_depd(ksp,kp)=0.
331	! do 248 nage=1,nageclass
332	! do 248 ix=0,numxgrid-1
333	! do 248 jy=0,numygrid-1
334	! do 248 l=1,nclassunc
335	! xm_depw(ksp,kp)=xm_depw(ksp,kp)
336	! + +wetgridunc(ix,jy,ksp,kp,l,nage)
337	!48 xm_depd(ksp,kp)=xm_depd(ksp,kp)
338	! + +drygridunc(ix,jy,ksp,kp,l,nage)
339	! do 246 ksp=1,nspec
340	!46 write(88,'(2i10,3e12.3)')
341	! + itime,ksp,(xm(ksp,kp),kp=1,maxpointspec_act),
342	! + (xm_depw(ksp,kp),kp=1,maxpointspec_act),
343	! + (xm_depd(ksp,kp),kp=1,maxpointspec_act)
344	! endif
345	!!! CHANGE
346
347
348
349	! Check whether concentrations are to be calculated
350	!**************************************************
351
352	if ((ldirectitime.ge.ldirectloutstart).and. &
353	(ldirectitime.le.ldirectloutend)) then ! add to grid
354	if (mod(itime-loutstart,loutsample).eq.0) then
355
356
357	do j=1,numpart
358	! RECEPTOR: dry/wet depovel
359	!****************************
360	! Before the particle is moved
361	! the calculation of the scavenged mass shall only be done once after release
362	! xscav_frac1 was initialised with a negative value
363
364	! write (,) 'out:',j,xtra1(j),ytra1(j),prob_rec(1),xscav_frac1(j,1)
365	if (DRYBKDEP) then
366	do ks=1,nspec
367	if ((xscav_frac1(j,ks).lt.0)) then
368	call get_vdep_prob(itime,xtra1(j),ytra1(j),ztra1(j),prob_rec)
369	if (DRYDEPSPEC(ks)) then ! dry deposition
370	! write (,) 'j,..:',j,xtra1(j),ytra1(j),prob_rec(1),xscav_frac1(j,1)
371	xscav_frac1(j,ks)=prob_rec(ks)
372	else
373	xmass1(j,ks)=0
374	xscav_frac1(j,ks)=0.
375	endif
376	endif
377	enddo
378	endif
379
380	if (WETBKDEP) then
381	do ks=1,nspec
382	if ((xscav_frac1(j,ks).lt.0)) then
383	call get_wetscav(itime,lsynctime,loutnext,j,ks,grfraction,idummy,idummy,wetscav)
384	if (wetscav(ks).gt.0) then
385	xscav_frac1(j,ks)=wetscav(ks)* &
386	(zpoint2(npoint(j))-zpoint1(npoint(j)))*grfraction(1)
387	else
388	xmass1(j,ks)=0.
389	xscav_frac1(j,ks)=0.
390	endif
391	endif
392	enddo
393	endif
394
395	enddo
396
397	! If we are exactly at the start or end of the concentration averaging interval,
398	! give only half the weight to this sample
399	!*****************************************************************************
400
401	if ((itime.eq.loutstart).or.(itime.eq.loutend)) then
402	weight=0.5
403	else
404	weight=1.0
405	endif
406	outnum=outnum+weight
407	call conccalc(itime,weight)
408	endif
409
410
411	if ((mquasilag.eq.1).and.(itime.eq.(loutstart+loutend)/2)) &
412	call partoutput_short(itime) ! dump particle positions in extremely compressed format
413
414
415	! Output and reinitialization of grid
416	! If necessary, first sample of new grid is also taken
417	!*****************************************************
418
419	if ((itime.eq.loutend).and.(outnum.gt.0.)) then
420	if ((iout.le.3.).or.(iout.eq.5)) then
421	if (surf_only.ne.1) then
422	if (lnetcdfout.eq.1) then
423	call concoutput_netcdf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
424	else
425	call concoutput(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
426	endif
427	else
428	if (verbosity.eq.1) then
429	print*,'call concoutput_surf '
430	call system_clock(count_clock)
431	write(,) 'system clock',count_clock - count_clock0
432	endif
433	if (lnetcdfout.eq.1) then
434	call concoutput_surf_netcdf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
435	else
436	call concoutput_surf(itime,outnum,gridtotalunc,wetgridtotalunc,drygridtotalunc)
437	if (verbosity.eq.1) then
438	print*,'called concoutput_surf '
439	call system_clock(count_clock)
440	write(,) 'system clock',count_clock - count_clock0
441	endif
442	endif
443	endif
444
445	if (nested_output .eq. 1) then
446	if (lnetcdfout.eq.0) then
447	if (surf_only.ne.1) then
448	call concoutput_nest(itime,outnum)
449	else
450	call concoutput_surf_nest(itime,outnum)
451	endif
452	else
453	if (surf_only.ne.1) then
454	call concoutput_nest_netcdf(itime,outnum)
455	else
456	call concoutput_surf_nest_netcdf(itime,outnum)
457	endif
458	endif
459	endif
460	outnum=0.
461	endif
462	if ((iout.eq.4).or.(iout.eq.5)) call plumetraj(itime)
463	if (iflux.eq.1) call fluxoutput(itime)
464	write(*,45) itime,numpart,gridtotalunc,wetgridtotalunc,drygridtotalunc
465
466	!CGZ-lifetime: output species lifetime
467	!ZHG
468	! write(,) 'Overview species lifetime in days', &
469	! real((species_lifetime(:,1)/species_lifetime(:,2))/real(3600.0*24.0))
470	! write(,) 'all info:',species_lifetime
471	!ZHG
472	!CGZ-lifetime: output species lifetime
473
474	!write(*,46) float(itime)/3600,itime,numpart
475	45 format(i13,' SECONDS SIMULATED: ',i13, ' PARTICLES: Uncertainty: ',3f7.3)
476	46 format(' Simulated ',f7.1,' hours (',i13,' s), ',i13, ' particles')
477	if (ipout.ge.1) call partoutput(itime) ! dump particle positions
478	loutnext=loutnext+loutstep
479	loutstart=loutnext-loutaver/2
480	loutend=loutnext+loutaver/2
481	if (itime.eq.loutstart) then
482	weight=0.5
483	outnum=outnum+weight
484	call conccalc(itime,weight)
485	endif
486
487
488	! Check, whether particles are to be split:
489	! If so, create new particles and attribute all information from the old
490	! particles also to the new ones; old and new particles both get half the
491	! mass of the old ones
492	!************************************************************************
493
494	if (ldirectitime.ge.ldirectitsplit) then
495	n=numpart
496	do j=1,numpart
497	if (ldirectitime.ge.ldirectitrasplit(j)) then
498	if (n.lt.maxpart) then
499	n=n+1
500	itrasplit(j)=2*(itrasplit(j)-itramem(j))+itramem(j)
501	itrasplit(n)=itrasplit(j)
502	itramem(n)=itramem(j)
503	itra1(n)=itra1(j)
504	idt(n)=idt(j)
505	npoint(n)=npoint(j)
506	nclass(n)=nclass(j)
507	xtra1(n)=xtra1(j)
508	ytra1(n)=ytra1(j)
509	ztra1(n)=ztra1(j)
510	uap(n)=uap(j)
511	ucp(n)=ucp(j)
512	uzp(n)=uzp(j)
513	us(n)=us(j)
514	vs(n)=vs(j)
515	ws(n)=ws(j)
516	cbt(n)=cbt(j)
517	do ks=1,nspec
518	xmass1(j,ks)=xmass1(j,ks)/2.
519	xmass1(n,ks)=xmass1(j,ks)
520	end do
521	endif
522	endif
523	end do
524	numpart=n
525	endif
526	endif
527	endif
528
529
530	if (itime.eq.ideltas) exit ! almost finished
531
532	! Compute interval since radioactive decay of deposited mass was computed
533	!************************************************************************
534
535	if (itime.lt.loutnext) then
536	ldeltat=itime-(loutnext-loutstep)
537	else ! first half of next interval
538	ldeltat=itime-loutnext
539	endif
540
541
542	! Loop over all particles
543	!************************
544	! Various variables for testing reason of CBL scheme, by mc
545	well_mixed_vector=0. !erase vector to test well mixed condition: modified by mc
546	well_mixed_norm=0. !erase normalization to test well mixed condition: modified by mc
547	avg_ol=0.
548	avg_wst=0.
549	avg_h=0.
550	avg_air_dens=0. !erase vector to obtain air density at particle positions: modified by mc
551	!-----------------------------------------------------------------------------
552	do j=1,numpart
553
554
555	! If integration step is due, do it
556	!**********************************
557
558	if (itra1(j).eq.itime) then
559
560	if (ioutputforeachrelease.eq.1) then
561	kp=npoint(j)
562	else
563	kp=1
564	endif
565	! Determine age class of the particle
566	itage=abs(itra1(j)-itramem(j))
567	do nage=1,nageclass
568	if (itage.lt.lage(nage)) exit
569	end do
570
571	! Initialize newly released particle
572	!***********************************
573
574	if ((itramem(j).eq.itime).or.(itime.eq.0)) &
575	call initialize(itime,idt(j),uap(j),ucp(j),uzp(j), &
576	us(j),vs(j),ws(j),xtra1(j),ytra1(j),ztra1(j),cbt(j))
577
578	! Memorize particle positions
579	!****************************
580
581	xold=xtra1(j)
582	yold=ytra1(j)
583	zold=ztra1(j)
584
585
586	! Integrate Lagevin equation for lsynctime seconds
587	!*************************************************
588
589	if (verbosity.gt.0) then
590	if (j.eq.1) then
591	write (,) 'timemanager> call advance'
592	endif
593	endif
594
595	! write (,) ' before advanced: ',j,prob(1),xmass1(j,1),ztra1(j)
596	call advance(itime,npoint(j),idt(j),uap(j),ucp(j),uzp(j), &
597	us(j),vs(j),ws(j),nstop,xtra1(j),ytra1(j),ztra1(j),prob, &
598	cbt(j))
599	if (ztra1(j).lt.30) then
600	! write (,) 'advanced: ',ztra1(j),j,xtra1(j),ytra1(j)
601	endif
602
603	! Calculate the gross fluxes across layer interfaces
604	!***************************************************
605
606	if (iflux.eq.1) call calcfluxes(nage,j,xold,yold,zold)
607
608
609	! Determine, when next time step is due
610	! If trajectory is terminated, mark it
611	!**************************************
612
613	if (nstop.gt.1) then
614	if (linit_cond.ge.1) call initial_cond_calc(itime,j)
615	itra1(j)=-999999999
616	else
617	itra1(j)=itime+lsynctime
618
619
620	! Dry deposition and radioactive decay for each species
621	! Also check maximum (of all species) of initial mass remaining on the particle;
622	! if it is below a threshold value, terminate particle
623	!*****************************************************************************
624
625	xmassfract=0.
626	do ks=1,nspec
627	if (decay(ks).gt.0.) then ! radioactive decay
628	decfact=exp(-real(abs(lsynctime))*decay(ks))
629	else
630	decfact=1.
631	endif
632
633	if (DRYDEPSPEC(ks)) then ! dry deposition
634	drydeposit(ks)=xmass1(j,ks)prob(ks)decfact
635	xmass1(j,ks)=xmass1(j,ks)(1.-prob(ks))decfact
636	if (decay(ks).gt.0.) then ! correct for decay (see wetdepo)
637	drydeposit(ks)=drydeposit(ks)* &
638	exp(real(abs(ldeltat))*decay(ks))
639	endif
640	else ! no dry deposition
641	xmass1(j,ks)=xmass1(j,ks)*decfact
642	endif
643
644	! Skip check on mass fraction when npoint represents particle number
645	if (mdomainfill.eq.0.and.mquasilag.eq.0) then
646	if (xmass(npoint(j),ks).gt.0.) &
647	xmassfract=max(xmassfract,real(npart(npoint(j)))* &
648	xmass1(j,ks)/xmass(npoint(j),ks))
649	!ZHG 2015
650	!CGZ-lifetime: Check mass fraction left/save lifetime
651	! if(real(npart(npoint(j)))*xmass1(j,ks)/xmass(npoint(j),ks).lt.e_inv.and.checklifetime(j,ks).eq.0.)then
652	!Mass below 1% of initial >register lifetime
653	! checklifetime(j,ks)=abs(itra1(j)-itramem(j))
654	! species_lifetime(ks,1)=species_lifetime(ks,1)+abs(itra1(j)-itramem(j))
655	! species_lifetime(ks,2)= species_lifetime(ks,2)+1
656	! endif
657	!CGZ-lifetime: Check mass fraction left/save lifetime
658	!ZHG 2015
659	else
660	xmassfract=1.0
661	end if
662	end do
663
664	if (xmassfract.lt.minmass) then ! terminate all particles carrying less mass
665	itra1(j)=-999999999
666	if (verbosity.gt.0) then
667	print*,'terminated particle ',j,' for small mass'
668	endif
669	endif
670
671	! Sabine Eckhardt, June 2008
672	! don't create depofield for backward runs
673	if (DRYDEP.AND.(ldirect.eq.1)) then
674	call drydepokernel(nclass(j),drydeposit,real(xtra1(j)), &
675	real(ytra1(j)),nage,kp)
676	if (nested_output.eq.1) call drydepokernel_nest( &
677	nclass(j),drydeposit,real(xtra1(j)),real(ytra1(j)), &
678	nage,kp)
679	endif
680
681	! Terminate trajectories that are older than maximum allowed age
682	!***************************************************************
683
684	if (abs(itra1(j)-itramem(j)).ge.lage(nageclass)) then
685	if (linit_cond.ge.1) call initial_cond_calc(itime+lsynctime,j)
686	itra1(j)=-999999999
687	if (verbosity.gt.0) then
688	print*,'terminated particle ',j,' for age'
689	endif
690	endif
691	endif
692
693	endif
694
695	end do !loop over particles
696
697	! Counter of "unstable" particle velocity during a time scale of
698	! maximumtl=20 minutes (defined in com_mod)
699	!***************************************************************
700
701	total_nan_intl=0
702	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)
703	sum_nan_count(i_nan)=nan_count
704	if (i_nan > maxtl/lsynctime) i_nan=1 !lsynctime must be <= maxtl
705	do ii_nan=1, (maxtl/lsynctime)
706	total_nan_intl=total_nan_intl+sum_nan_count(ii_nan)
707	end do
708	! Output to keep track of the numerical instabilities in CBL simulation and if
709	! they are compromising the final result (or not)
710	if (cblflag.eq.1) print *,j,itime,'nan_synctime',nan_count,'nan_tl',total_nan_intl
711
712	end do
713
714
715	! Complete the calculation of initial conditions for particles not yet terminated
716	!*****************************************************************************
717
718	do j=1,numpart
719	if (linit_cond.ge.1) call initial_cond_calc(itime,j)
720	end do
721
722	if (ipout.eq.2) call partoutput(itime) ! dump particle positions
723
724	if (linit_cond.ge.1) call initial_cond_output(itime) ! dump initial cond. field
725
726	!close(104)
727
728	! De-allocate memory and end
729	!***************************
730
731	if (iflux.eq.1) then
732	deallocate(flux)
733	endif
734	if (OHREA) then
735	deallocate(OH_field,OH_hourly,lonOH,latOH,altOH)
736	endif
737	if (ldirect.gt.0) then
738	deallocate(drygridunc,wetgridunc)
739	endif
740	deallocate(gridunc)
741	deallocate(xpoint1,xpoint2,ypoint1,ypoint2,zpoint1,zpoint2,xmass)
742	deallocate(ireleasestart,ireleaseend,npart,kindz)
743	deallocate(xmasssave)
744	if (nested_output.eq.1) then
745	deallocate(orooutn, arean, volumen)
746	if (ldirect.gt.0) then
747	deallocate(griduncn,drygriduncn,wetgriduncn)
748	endif
749	endif
750	deallocate(outheight,outheighthalf)
751	deallocate(oroout, area, volume)
752
753	end subroutine timemanager
754

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