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rocketduststorm_mod.F90 @ 2613

Last change on this file since 2613 was 2584, checked in by romain.vande, 3 years ago
Second stage of implementation of Open_MP in the physic. Run with callrad=.true.
File size: 31.0 KB

Rev	Line
[1974]	1	MODULE rocketduststorm_mod
	2
	3	IMPLICIT NONE
	4
	5	REAL, SAVE, ALLOCATABLE :: dustliftday(:) ! dust lifting rate (s-1)
[2584]	6
	7	!$OMP THREADPRIVATE(dustliftday)
[1974]	8
	9	CONTAINS
	10
	11	!=======================================================================
	12	! ROCKET DUST STORM - vertical transport and detrainment
	13	!=======================================================================
[2079]	14	! calculation of the vertical flux
[2201]	15	! call of van_leer : Van Leer transport scheme of the dust tracers
[2079]	16	! detrainement of stormdust in the background dust
[1974]	17	! -----------------------------------------------------------------------
[2079]	18	! Authors: M. Vals; C. Wang; F. Forget; T. Bertrand
[1974]	19	! Institution: Laboratoire de Meteorologie Dynamique (LMD) Paris, France
	20	! -----------------------------------------------------------------------
	21
	22	SUBROUTINE rocketduststorm(ngrid,nlayer,nq,ptime,ptimestep, &
	23	pq,pdqfi,pt,pdtfi,pplev,pplay,pzlev, &
	24	pzlay,pdtsw,pdtlw, &
	25	! input for radiative transfer
	26	clearatm,icount,zday,zls, &
	27	tsurf,igout,totstormfract, &
[2417]	28	tauscaling,dust_rad_adjust, &
[1974]	29	! input sub-grid scale cloud
	30	clearsky,totcloudfrac, &
[2199]	31	! input sub-grid scale topography
	32	nohmons,alpha_hmons, &
[2079]	33	! output
[2246]	34	pdqrds,wrad,dsodust,dsords,dsotop, &
[2415]	35	tau_pref_scenario,tau_pref_gcm)
[1974]	36
[2079]	37	USE tracer_mod, only: igcm_stormdust_mass,igcm_stormdust_number &
[1974]	38	,igcm_dust_mass,igcm_dust_number &
	39	,rho_dust
	40	USE comcstfi_h, only: r,g,cpp,rcp
[2079]	41	USE dimradmars_mod, only: albedo,naerkind
	42	USE comsaison_h, only: dist_sol,mu0,fract
	43	USE surfdat_h, only: emis,co2ice,zmea, zstd, zsig, hmons
[2226]	44	USE callradite_mod, only: callradite
[2079]	45	IMPLICIT NONE
[1974]	46
[2160]	47	include "callkeys.h"
	48
[1974]	49	!--------------------------------------------------------
	50	! Input Variables
	51	!--------------------------------------------------------
	52
	53	INTEGER, INTENT(IN) :: ngrid ! number of horizontal grid points
	54	INTEGER, INTENT(IN) :: nlayer ! number of vertical grid points
	55	INTEGER, INTENT(IN) :: nq ! number of tracer species
	56	REAL, INTENT(IN) :: ptime
	57	REAL, INTENT(IN) :: ptimestep
	58
	59	REAL, INTENT(IN) :: pq(ngrid,nlayer,nq) ! advected field nq
	60	REAL, INTENT(IN) :: pdqfi(ngrid,nlayer,nq)! tendancy field pq
	61	REAL, INTENT(IN) :: pt(ngrid,nlayer) ! temperature at mid-layer (K)
	62	REAL, INTENT(IN) :: pdtfi(ngrid,nlayer) ! tendancy temperature at mid-layer (K)
	63
	64	REAL, INTENT(IN) :: pplay(ngrid,nlayer) ! pressure at middle of the layers
	65	REAL, INTENT(IN) :: pplev(ngrid,nlayer+1) ! pressure at intermediate levels
	66	REAL, INTENT(IN) :: pzlay(ngrid,nlayer) ! altitude at the middle of the layers
	67	REAL, INTENT(IN) :: pzlev(ngrid,nlayer+1) ! altitude at layer boundaries
	68
	69	REAL, INTENT(IN) :: pdtsw(ngrid,nlayer) ! (K/s) env
	70	REAL, INTENT(IN) :: pdtlw(ngrid,nlayer) ! (K/s) env
	71
	72	! input for second radiative transfer
[2079]	73	LOGICAL, INTENT(IN) :: clearatm
[1974]	74	INTEGER, INTENT(INOUT) :: icount
[2079]	75	REAL, INTENT(IN) :: zday
	76	REAL, INTENT(IN) :: zls
	77	REAL, INTENT(IN) :: tsurf(ngrid)
	78	INTEGER, INTENT(IN) :: igout
	79	REAL, INTENT(IN) :: totstormfract(ngrid)
[2226]	80	REAL, INTENT(INOUT) :: tauscaling(ngrid)
[2417]	81	REAL,INTENT(OUT) :: dust_rad_adjust(ngrid)
[2079]	82
[1974]	83	! sbgrid scale water ice clouds
	84	logical, intent(in) :: clearsky
[2199]	85	real, intent(in) :: totcloudfrac(ngrid)
	86
	87	! sbgrid scale topography
	88	LOGICAL, INTENT(IN) :: nohmons
	89	REAL, INTENT(IN) :: alpha_hmons(ngrid)
[1974]	90
	91	!--------------------------------------------------------
	92	! Output Variables
	93	!--------------------------------------------------------
	94
	95	REAL, INTENT(OUT) :: pdqrds(ngrid,nlayer,nq) ! tendancy field for dust when detraining
[2079]	96	REAL, INTENT(OUT) :: wrad(ngrid,nlayer+1) ! vertical speed within the rocket dust storm
[2415]	97	REAL, INTENT(OUT) :: dsodust(ngrid,nlayer) ! density scaled opacity of env. dust
	98	REAL, INTENT(OUT) :: dsords(ngrid,nlayer) ! density scaled opacity of storm dust
	99	REAL, INTENT(OUT) :: dsotop(ngrid,nlayer) ! density scaled opacity of topmons dust
	100	REAL,INTENT(OUT) :: tau_pref_scenario(ngrid) ! prescribed dust column
	101	! visible opacity at odpref
	102	REAL,INTENT(OUT) :: tau_pref_gcm(ngrid) ! dust column visible opacity at
	103	! odpref in the GCM
[1974]	104	!--------------------------------------------------------
	105	! Local variables
	106	!--------------------------------------------------------
[2201]	107	INTEGER l,ig,iq,ll
[2079]	108	! local variables from callradite.F
[1974]	109	REAL zdtlw1(ngrid,nlayer) ! (K/s) storm
	110	REAL zdtsw1(ngrid,nlayer) ! (K/s) storm
	111	REAL zt(ngrid,nlayer) ! actual temperature at mid-layer (K)
[2091]	112	REAL zdtvert(ngrid,nlayer) ! dT/dz , lapse rate
	113	REAL ztlev(ngrid,nlayer) ! temperature at intermediate levels l+1/2 without last level
[1974]	114
[2079]	115	REAL zdtlw1_lev(nlayer),zdtsw1_lev(nlayer) ! rad. heating rate at intermediate levels l+1/2 for stormdust
	116	REAL zdtlw_lev(nlayer),zdtsw_lev(nlayer) ! rad. heating rate at intermediate levels l+1/2 for background dust
[1974]	117
[2079]	118	REAL zq_stormdust_mass(ngrid,nlayer) ! intermediate tracer stormdust mass
	119	REAL zq_stormdust_number(ngrid,nlayer) ! intermediate tracer stormdust number
	120	REAL zq_dust_mass(ngrid,nlayer) ! intermediate tracer dust mass
	121	REAL zq_dust_number(ngrid,nlayer) ! intermediate tracer dust number
[1974]	122
[2079]	123	REAL mr_stormdust_mass(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (stormdust mass)
	124	REAL mr_stormdust_number(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (stormdust number)
	125	REAL mr_dust_mass(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (dust mass)
	126	REAL mr_dust_number(ngrid,nlayer) ! intermediate mixing ratio to calculate van leer transport with the "real" concentration (sdust number)
	127
	128	REAL dqvl_stormdust_mass(ngrid,nlayer) ! tendancy of vertical transport (stormdust mass)
	129	REAL dqvl_stormdust_number(ngrid,nlayer) ! tendancy of vertical transport (stormdust number)
	130	REAL dqvl_dust_mass(ngrid,nlayer) ! tendancy of vertical transport (dust mass)
	131	REAL dqvl_dust_number(ngrid,nlayer) ! tendancy of vertical transport (dust number)
	132	REAL dqdet_stormdust_mass(ngrid,nlayer) ! tendancy of detrainement (stormdust mass)
	133	REAL dqdet_stormdust_number(ngrid,nlayer) ! tendancy of detrainement (stormdust number)
[1974]	134
[2090]	135	REAL masse_col(nlayer) ! mass of atmosphere (kg/m2)
[1974]	136	REAL zq(ngrid,nlayer,nq) ! updated tracers
	137
[2090]	138	REAL w(ngrid,nlayer) ! air mass flux (calculated with the vertical wind velocity profile) used as input in Van Leer (kgair/m2)
	139	REAL wqmass(ngrid,nlayer+1) ! tracer (dust_mass) mass flux in Van Leer (kg/m2)
	140	REAL wqnumber(ngrid,nlayer+1) ! tracer (dust_number) mass flux in Van Leer (kg/m2)
[1974]	141
[2079]	142	LOGICAL storm(ngrid) ! true when there is a dust storm (if the opacity is high): trigger the rocket dust storm scheme
[2160]	143	REAL detrain(ngrid,nlayer) ! coefficient for detrainment : % of stormdust detrained
[2079]	144	INTEGER scheme(ngrid) ! triggered scheme
	145
	146	REAL,PARAMETER:: coefmin =0.025 ! 0<coefmin<1 Minimum fraction of stormdust detrained
[2201]	147	REAL,PARAMETER:: wmin =0.25 ! stormdust detrainment if wrad < wmin
[2079]	148	REAL,PARAMETER:: wmax =10. ! maximum vertical velocity of the rocket dust storms (m/s)
[2201]	149
	150	! subtimestep
	151	INTEGER tsub
	152	INTEGER nsubtimestep !number of subtimestep when calling van_leer
	153	REAL subtimestep !ptimestep/nsubtimestep
	154	REAL dtmax !considered time needed for dust to cross one layer
	155	REAL,PARAMETER:: secu=3.!3. !coefficient on wspeed to avoid dust crossing many layers during subtimestep
	156
[2079]	157	! diagnostics
	158	REAL lapserate(ngrid,nlayer)
	159	REAL deltahr(ngrid,nlayer+1)
[1974]	160
[2079]	161	LOGICAL,SAVE :: firstcall=.true.
	162
	163	! variables for the radiative transfer
[1974]	164	REAL fluxsurf_lw1(ngrid)
	165	REAL fluxsurf_sw1(ngrid,2)
	166	REAL fluxtop_lw1(ngrid)
	167	REAL fluxtop_sw1(ngrid,2)
	168	REAL tau(ngrid,naerkind)
	169	REAL aerosol(ngrid,nlayer,naerkind)
	170	REAL taucloudtes(ngrid)
	171	REAL rdust(ngrid,nlayer)
	172	REAL rstormdust(ngrid,nlayer)
[2199]	173	REAL rtopdust(ngrid,nlayer)
[1974]	174	REAL rice(ngrid,nlayer)
	175	REAL nuice(ngrid,nlayer)
[2459]	176	DOUBLE PRECISION riceco2(ngrid,nlayer)
[2448]	177	REAL nuiceco2(ngrid,nlayer)
[1974]	178
	179	! **********************************************************************
	180	! **********************************************************************
[2079]	181	! Rocket dust storm parametrization to reproduce the detached dust layers
	182	! during the dust storm season:
[1974]	183	! The radiative warming due to the presence of storm dust is
	184	! balanced by the adiabatic cooling. The tracer "storm dust"
	185	! is transported by the upward/downward flow.
	186	! **********************************************************************
	187	! **********************************************************************
	188	!! 1. Radiative transfer in storm dust
	189	!! 2. Compute vertical velocity for storm dust
[2079]	190	!! case 1 storm = false: nothing to do
	191	!! case 2 rocket dust storm (storm=true)
	192	!! 3. Vertical transport (Van Leer)
[1974]	193	!! 4. Detrainment
	194	! **********************************************************************
	195	! **********************************************************************
	196
	197
	198	! **********************************************************************
[2079]	199	! Initializations
[1974]	200	! **********************************************************************
	201	storm(:)=.false.
	202	pdqrds(:,:,:) = 0.
[2079]	203	mr_dust_mass(:,:)=0.
	204	mr_dust_number(:,:)=0.
	205	mr_stormdust_mass(:,:)=0.
	206	mr_stormdust_number(:,:)=0.
	207	dqvl_dust_mass(:,:)=0.
	208	dqvl_dust_number(:,:)=0.
	209	dqvl_stormdust_mass(:,:)=0.
	210	dqvl_stormdust_number(:,:)=0.
	211	dqdet_stormdust_mass(:,:)=0.
	212	dqdet_stormdust_number(:,:)=0.
	213	wrad(:,:)=0.
[2090]	214	w(:,:)=0.
	215	wqmass(:,:)=0.
	216	wqnumber(:,:)=0.
[2091]	217	zdtvert(:,:)=0.
[1974]	218	lapserate(:,:)=0.
	219	deltahr(:,:)=0.
	220	scheme(:)=0
[2160]	221	detrain(:,:)=1.
[2083]	222
[1974]	223	!! no update for the stormdust tracer and temperature fields
	224	!! because previous callradite was for background dust
	225	zq(1:ngrid,1:nlayer,1:nq)=pq(1:ngrid,1:nlayer,1:nq)
	226	zt(1:ngrid,1:nlayer)=pt(1:ngrid,1:nlayer)
	227
	228
[2079]	229	zq_dust_mass(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_dust_mass)
	230	zq_dust_number(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_dust_number)
	231	zq_stormdust_mass(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_stormdust_mass)
	232	zq_stormdust_number(1:ngrid,1:nlayer)=zq(1:ngrid,1:nlayer,igcm_stormdust_number)
	233
	234	! *********************************************************************
	235	! 0. Check if there is a storm
	236	! *********************************************************************
	237	DO ig=1,ngrid
[1974]	238	storm(ig)=.false.
[2079]	239	DO l=1,nlayer
	240	IF (zq(ig,l,igcm_stormdust_mass) &
	241	.gt. zq(ig,l,igcm_dust_mass)*(1.E-4)) THEN
[1974]	242	storm(ig)=.true.
[2079]	243	EXIT
	244	ENDIF
	245	ENDDO
	246	ENDDO
[1974]	247
	248	! *********************************************************************
	249	! 1. Call the second radiative transfer for stormdust, obtain the extra heating
	250	! *********************************************************************
[2199]	251	CALL callradite(icount,ngrid,nlayer,nq,zday,zls,pq,albedo, &
	252	emis,mu0,pplev,pplay,pt,tsurf,fract,dist_sol,igout, &
	253	zdtlw1,zdtsw1,fluxsurf_lw1,fluxsurf_sw1,fluxtop_lw1, &
[2415]	254	fluxtop_sw1,tau_pref_scenario,tau_pref_gcm, &
[2417]	255	tau,aerosol,dsodust,tauscaling,dust_rad_adjust, &
[2448]	256	taucloudtes,rdust,rice,nuice,riceco2,nuiceco2,co2ice,rstormdust,rtopdust, &
[2246]	257	totstormfract,clearatm,dsords,dsotop,alpha_hmons,nohmons,&
[1974]	258	clearsky,totcloudfrac)
	259
	260	! **********************************************************************
	261	! 2. Compute vertical velocity for storm dust
[2079]	262	! **********************************************************************
[1974]	263	!! **********************************************************************
[2079]	264	!! 2.1 Nothing to do when no storm
	265	!! no storm
	266	DO ig=1,ngrid
	267	IF (.NOT.(storm(ig))) then
	268	scheme(ig)=1
	269	cycle
	270	ENDIF ! IF (storm(ig))
	271	ENDDO ! DO ig=1,ngrid
[1974]	272
[2079]	273	!! **********************************************************************
	274	!! 2.2 Calculation of the extra heating : computing heating rates
	275	!! gradient at boundaries of each layer, start from surface
	276	DO ig=1,ngrid
[2091]	277	IF (storm(ig)) THEN
	278
	279	scheme(ig)=2
[1974]	280
[2091]	281	!! computing heating rates gradient at boundraies of each layer
	282	!! start from surface
	283	zdtlw1_lev(1)=0.
	284	zdtsw1_lev(1)=0.
	285	zdtlw_lev(1)=0.
	286	zdtsw_lev(1)=0.
	287	ztlev(ig,1)=zt(ig,1)
[1974]	288
[2091]	289	DO l=1,nlayer-1
	290	!! Calculation for the dust storm fraction
	291	zdtlw1_lev(l+1)=(zdtlw1(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ &
	292	zdtlw1(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / &
	293	(pzlay(ig,l+1)-pzlay(ig,l))
	294
	295	zdtsw1_lev(l+1)=(zdtsw1(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ &
	296	zdtsw1(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / &
	297	(pzlay(ig,l+1)-pzlay(ig,l))
	298	!! Calculation for the background dust fraction
	299	zdtlw_lev(l+1)=(pdtlw(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ &
	300	pdtlw(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / &
	301	(pzlay(ig,l+1)-pzlay(ig,l))
[2079]	302
[2091]	303	zdtsw_lev(l+1)=(pdtsw(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ &
	304	pdtsw(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / &
	305	(pzlay(ig,l+1)-pzlay(ig,l))
[2079]	306
[2091]	307	ztlev(ig,l+1)=(zt(ig,l)*(pzlay(ig,l+1)-pzlev(ig,l+1))+ &
	308	zt(ig,l+1)*(pzlev(ig,l+1)-pzlay(ig,l))) / &
	309	(pzlay(ig,l+1)-pzlay(ig,l))
[2201]	310	ENDDO ! DO l=1,nlayer-1
[1974]	311
[2201]	312	!! This is the env. lapse rate
	313	zdtvert(ig,1)=0.
	314	DO l=1,nlayer-1
	315	zdtvert(ig,l+1)=(ztlev(ig,l+1)-ztlev(ig,l))/(pzlay(ig,l+1)-pzlay(ig,l))
	316	lapserate(ig,l+1)=zdtvert(ig,l+1)
	317	ENDDO
	318
[2091]	319	!! **********************************************************************
	320	!! 2.3 Calculation of the vertical velocity : extra heating
	321	!! balanced by adiabatic cooling
	322
[2079]	323	DO l=1,nlayer
	324	deltahr(ig,l)=(zdtlw1_lev(l)+zdtsw1_lev(l)) &
	325	-(zdtlw_lev(l)+zdtsw_lev(l))
	326	wrad(ig,l)=-deltahr(ig,l)/(g/cpp+ &
[2091]	327	max(zdtvert(ig,l),-0.99*g/cpp))
[2079]	328	!! Limit vertical wind in case of lapse rate close to adiabatic
	329	wrad(ig,l)=max(wrad(ig,l),-wmax)
	330	wrad(ig,l)=min(wrad(ig,l),wmax)
	331	ENDDO
[2091]	332
[2079]	333	ENDIF ! IF (storm(ig))
	334	ENDDO ! DO ig=1,ngrid
[1974]	335
	336	! **********************************************************************
	337	! 3. Vertical transport
	338	! **********************************************************************
[2079]	339	!! **********************************************************************
	340	!! 3.1 Transport of background dust + storm dust (concentrated)
	341	DO ig=1,ngrid
	342	IF (storm(ig)) THEN
	343	DO l=1,nlayer
	344	mr_dust_mass(ig,l) = zq_dust_mass(ig,l)
	345	mr_dust_number(ig,l) = zq_dust_number(ig,l)
	346	mr_stormdust_mass(ig,l) = zq_dust_mass(ig,l)+ &
	347	zq_stormdust_mass(ig,l)/totstormfract(ig)
	348	mr_stormdust_number(ig,l) = zq_dust_number(ig,l)+ &
	349	zq_stormdust_number(ig,l)/totstormfract(ig)
	350	ENDDO ! DO l=1,nlayer
	351	ENDIF ! IF (storm(ig))
	352	ENDDO ! DO ig=1,ngrid
[1974]	353
[2079]	354	DO ig=1,ngrid
	355	IF (storm(ig)) THEN
[2201]	356	!! **********************************************************************
	357	!! 3.2 Compute the subtimestep to conserve the mass in the Van Leer transport
	358	dtmax=ptimestep
	359	DO l=2,nlayer
	360	IF (wrad(ig,l).lt.0.) THEN
	361	dtmax=min(dtmax,(pzlev(ig,l)-pzlev(ig,l-1))/ &
	362	(secu*abs(wrad(ig,l))))
	363	ELSE IF (wrad(ig,l).gt.0.) then
	364	dtmax=min(dtmax,(pzlev(ig,l+1)-pzlev(ig,l))/ &
	365	(secu*abs(wrad(ig,l))))
	366	ENDIF
	367	ENDDO
	368	nsubtimestep= int(ptimestep/dtmax)
	369	subtimestep=ptimestep/float(nsubtimestep)
	370	!! Mass flux generated by wup in kg/m2
	371	DO l=1,nlayer
	372	w(ig,l)=wrad(ig,l)pplev(ig,l)/(rztlev(ig,l)) &
	373	*subtimestep
	374	ENDDO ! l=1,nlayer
	375
	376	!! **********************************************************************
	377	!! 3.3 Vertical transport by a Van Leer scheme
[2079]	378	!! Mass of atmosphere in the layer
	379	DO l=1,nlayer
[2090]	380	masse_col(l)=(pplev(ig,l)-pplev(ig,l+1))/g
[2079]	381	ENDDO
[2201]	382	!! Mass flux in kg/m2 if you are not using the subtimestep
	383	!DO l=1,nlayer
	384	! w(ig,l)=wrad(ig,l)(pplev(ig,l)/(rztlev(ig,l)))*ptimestep
	385	!ENDDO
	386	!! Loop over the subtimestep
	387	DO tsub=1,nsubtimestep
	388	!! Van Leer scheme
	389	wqmass(ig,:)=0.
	390	wqnumber(ig,:)=0.
	391	CALL van_leer(nlayer,mr_stormdust_mass(ig,:),2., &
	392	masse_col,w(ig,:),wqmass(ig,:))
	393	CALL van_leer(nlayer,mr_stormdust_number(ig,:),2., &
	394	masse_col,w(ig,:),wqnumber(ig,:))
	395	ENDDO !tsub=...
	396
[2079]	397	ENDIF ! IF storm(ig)
	398	ENDDO ! DO ig=1,ngrid
[1974]	399
[2079]	400	!! **********************************************************************
[2201]	401	!! 3.4 Re-calculation of the mixing ratios after vertical transport
[2079]	402	DO ig=1,ngrid
	403	IF (storm(ig)) THEN
	404	DO l=1,nlayer
	405
	406	!! General and "healthy" case
	407	IF (mr_stormdust_mass(ig,l).ge.mr_dust_mass(ig,l)) THEN
	408	zq_dust_mass(ig,l) = mr_dust_mass(ig,l)
	409	zq_dust_number(ig,l) = mr_dust_number(ig,l)
	410	zq_stormdust_mass(ig,l) = totstormfract(ig)*(mr_stormdust_mass(ig,l)-mr_dust_mass(ig,l))
	411	zq_stormdust_number(ig,l) = totstormfract(ig)*(mr_stormdust_number(ig,l)-mr_dust_number(ig,l))
	412	!! Particular case: there is less than initial dust mixing ratio after the vertical transport
	413	ELSE
	414	zq_dust_mass(ig,l) = (1.-totstormfract(ig))mr_dust_mass(ig,l)+totstormfract(ig)mr_stormdust_mass(ig,l)
	415	zq_dust_number(ig,l) = (1.-totstormfract(ig))mr_dust_number(ig,l)+totstormfract(ig)mr_stormdust_number(ig,l)
	416	zq_stormdust_mass(ig,l) = 0.
	417	zq_stormdust_number(ig,l) = 0.
	418	ENDIF
	419
	420	ENDDO ! DO l=1,nlayer
	421	ENDIF ! IF storm(ig)
	422	ENDDO ! DO ig=1,ngrid
[1974]	423
[2079]	424	!! **********************************************************************
[2201]	425	!! 3.5 Calculation of the tendencies of the vertical transport
[2079]	426	DO ig=1,ngrid
	427	IF (storm(ig)) THEN
	428	DO l=1,nlayer
	429	dqvl_stormdust_mass(ig,l) = (zq_stormdust_mass(ig,l)- &
	430	zq(ig,l,igcm_stormdust_mass)) /ptimestep
	431	dqvl_stormdust_number(ig,l) = (zq_stormdust_number(ig,l)- &
	432	zq(ig,l,igcm_stormdust_number)) /ptimestep
	433	dqvl_dust_mass(ig,l) = (zq_dust_mass(ig,l)-zq(ig,l,igcm_dust_mass)) /ptimestep
	434	dqvl_dust_number(ig,l) = (zq_dust_number(ig,l)-zq(ig,l,igcm_dust_number)) /ptimestep
	435	ENDDO
	436	ENDIF ! IF storm(ig)
	437	ENDDO ! DO ig=1,ngrid
[1974]	438
	439	! **********************************************************************
[2079]	440	! 4. Detrainment: stormdust is converted to background dust
[1974]	441	! **********************************************************************
[2079]	442	!! **********************************************************************
	443	!! 4.1 Compute the coefficient of detrainmen
	444	DO ig=1,ngrid
	445	DO l=1,nlayer
	446	IF ((max(abs(wrad(ig,l)),abs(wrad(ig,l+1))) .lt. &
	447	wmin) .or. (zq_dust_mass(ig,l) .gt. &
	448	10000.*zq_stormdust_mass(ig,l))) THEN
[2160]	449	detrain(ig,l)=1.
[2079]	450	ELSE IF (max(abs(wrad(ig,l)),abs(wrad(ig,l+1))) &
	451	.le. wmax) THEN
[2160]	452	detrain(ig,l)=coeff_detrainment* &
	453	(((1-coefmin)/(wmin-wmax)*2) &
	454	(max(abs(wrad(ig,l)),abs(wrad(ig,l+1)))-wmax)**2 &
	455	+coefmin)
[2079]	456	ELSE IF (max(abs(wrad(ig,l)),abs(wrad(ig,l+1))).gt. wmax ) THEN
[2160]	457	detrain(ig,l)=coefmin
[2079]	458	ELSE
[2160]	459	detrain(ig,l)=coefmin
[2079]	460	ENDIF
	461	ENDDO ! DO l=1,nlayer
	462	ENDDO ! DO ig=1,ngrid
	463
	464	!! **********************************************************************
	465	!! 4.2 Calculation of the tendencies of the detrainment
	466	DO ig=1,ngrid
	467	DO l=1,nlayer
[2160]	468	dqdet_stormdust_mass(ig,l)=-detrain(ig,l)*zq_stormdust_mass(ig,l) &
[1974]	469	/ptimestep
[2160]	470	dqdet_stormdust_number(ig,l)=-detrain(ig,l)*zq_stormdust_number(ig,l) &
[1974]	471	/ptimestep
[2079]	472	ENDDO ! DO l=1,nlayer
	473	ENDDO ! DO ig=1,ngrid
	474
	475	! **********************************************************************
	476	! 5. Final tendencies: vertical transport + detrainment
	477	! **********************************************************************
	478	DO ig=1,ngrid
	479	DO l=1,nlayer
	480	pdqrds(ig,l,igcm_stormdust_mass)=dqdet_stormdust_mass(ig,l) &
	481	+dqvl_stormdust_mass(ig,l)
	482	pdqrds(ig,l,igcm_stormdust_number)=dqdet_stormdust_number(ig,l) &
	483	+dqvl_stormdust_number(ig,l)
	484	pdqrds(ig,l,igcm_dust_mass)= -dqdet_stormdust_mass(ig,l) &
	485	+dqvl_dust_mass(ig,l)
	486	pdqrds(ig,l,igcm_dust_number)= -dqdet_stormdust_number(ig,l) &
	487	+dqvl_dust_number(ig,l)
	488	ENDDO ! DO l=1,nlayer
	489	ENDDO ! DO ig=1,ngrid
[1974]	490
[2201]	491	! ! **********************************************************************
	492	! ! 6. To prevent from negative values
	493	! ! **********************************************************************
	494	! DO ig=1,ngrid
	495	! DO l=1,nlayer
	496	! IF ((pq(ig,l,igcm_stormdust_mass) &
	497	! +pdqrds(ig,l,igcm_stormdust_mass)*ptimestep .le. 0.) .or. &
	498	! (pq(ig,l,igcm_stormdust_number) &
	499	! +pdqrds(ig,l,igcm_stormdust_number)*ptimestep .le. 0.)) THEN
	500	! pdqrds(ig,l,igcm_stormdust_mass)=-pq(ig,l,igcm_stormdust_mass)/ptimestep
	501	! pdqrds(ig,l,igcm_stormdust_number)=-pq(ig,l,igcm_stormdust_number)/ptimestep
	502	! ENDIF
	503	! ENDDO ! nlayer
	504	! ENDDO ! DO ig=1,ngrid
	505	!
	506	! DO ig=1,ngrid
	507	! DO l=1,nlayer
	508	! IF ((pq(ig,l,igcm_dust_mass) &
	509	! +pdqrds(ig,l,igcm_dust_mass)*ptimestep .le. 0.) .or. &
	510	! (pq(ig,l,igcm_dust_number) &
	511	! +pdqrds(ig,l,igcm_dust_number)*ptimestep .le. 0.)) THEN
	512	! pdqrds(ig,l,igcm_dust_mass)=-pq(ig,l,igcm_dust_mass)/ptimestep
	513	! pdqrds(ig,l,igcm_dust_number)=-pq(ig,l,igcm_dust_number)/ptimestep
	514	! ENDIF
	515	! ENDDO ! nlayer
	516	! ENDDO ! DO ig=1,ngrid
[2079]	517
	518	!=======================================================================
	519	! WRITEDIAGFI
	520
[1974]	521	call WRITEDIAGFI(ngrid,'lapserate','lapse rate in the storm', &
	522	& 'k/m',3,lapserate)
	523	call WRITEDIAGFI(ngrid,'deltahr','extra heating rates', &
	524	& 'K/s',3,deltahr)
	525	call writediagfi(ngrid,'scheme','which scheme',&
	526	' ',2,real(scheme))
[2079]	527
[1974]	528	END SUBROUTINE rocketduststorm
	529
[2201]	530	!=======================================================================
	531	! **********************************************************************
	532	! Subroutine to determine the vertical transport with
	533	! a Van Leer advection scheme (copied from the sedimentation scheme --> see vlz_fi.F)
	534	!***********************************************************************
	535	SUBROUTINE van_leer(nlay,q,pente_max,masse,w,wq)
[2079]	536
[1974]	537	IMPLICIT NONE
	538
[2201]	539	!--------------------------------------------------------
	540	! Input/Output Variables
	541	!--------------------------------------------------------
	542	INTEGER,INTENT(IN) :: nlay ! number of atmospheric layers
	543	REAL,INTENT(IN) :: masse(nlay) ! mass of the layer Dp/g
	544	REAL,INTENT(IN) :: pente_max != 2 conseillee
	545	REAL,INTENT(INOUT) :: q(nlay) ! mixing ratio (kg/kg)
	546	REAL,INTENT(INOUT) :: w(nlay) ! atmospheric mass "transferred" at each timestep (kg.m-2)
	547	REAL,INTENT(INOUT) :: wq(nlay+1)
	548
	549	!--------------------------------------------------------
	550	! Local Variables
	551	!--------------------------------------------------------
	552
[1974]	553	INTEGER i,l,j,ii
[2079]	554	REAL dzq(nlay),dzqw(nlay),adzqw(nlay),dzqmax
	555	REAL newmasse
	556	REAL sigw, Mtot, MQtot
	557	INTEGER m
[1974]	558
[2201]	559	! **********************************************************************
	560	! Mixing ratio vertical gradient at the levels
	561	! **********************************************************************
[1974]	562	do l=2,nlay
	563	dzqw(l)=q(l-1)-q(l)
	564	adzqw(l)=abs(dzqw(l))
	565	enddo
	566
	567	do l=2,nlay-1
	568	if(dzqw(l)*dzqw(l+1).gt.0.) then
	569	dzq(l)=0.5*(dzqw(l)+dzqw(l+1))
	570	else
	571	dzq(l)=0.
	572	endif
	573	dzqmax=pente_max*min(adzqw(l),adzqw(l+1))
	574	dzq(l)=sign(min(abs(dzq(l)),dzqmax),dzq(l))
	575	enddo
	576
	577	dzq(1)=0.
	578	dzq(nlay)=0.
[2079]	579
[2201]	580	! **********************************************************************
	581	! Vertical advection
	582	! **********************************************************************
[1974]	583
[2201]	584	!! No flux at the model top:
[1974]	585	wq(nlay+1)=0.
	586
[2201]	587	!! Surface flux up:
[2119]	588	if(w(1).lt.0.) wq(1)=0. ! warning : not always valid
[1974]	589
[2201]	590	do l = 1,nlay-1
[2119]	591
[2201]	592	! 1) Compute wq where w < 0 (up) (UPWARD TRANSPORT)
[2119]	593	! ===============================
	594
[1974]	595	if(w(l+1).le.0)then
	596	! Regular scheme (transfered mass < 1 layer)
	597	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	598	if(-w(l+1).le.masse(l))then
	599	sigw=w(l+1)/masse(l)
	600	wq(l+1)=w(l+1)(q(l)-0.5(1.+sigw)*dzq(l))
[2201]	601	!!-------------------------------------------------------
	602	! The following part should not be needed in the
	603	! case of an integration over subtimesteps
	604	!!-------------------------------------------------------
[1974]	605	! Extended scheme (transfered mass > 1 layer)
	606	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	607	else
	608	m = l-1
	609	Mtot = masse(m+1)
	610	MQtot = masse(m+1)*q(m+1)
	611	if (m.le.0)goto 77
	612	do while(-w(l+1).gt.(Mtot+masse(m)))
	613	! do while(-w(l+1).gt.Mtot)
	614	m=m-1
	615	Mtot = Mtot + masse(m+1)
	616	MQtot = MQtot + masse(m+1)*q(m+1)
	617	if (m.le.0)goto 77
	618	end do
	619	77 continue
	620
	621	if (m.gt.0) then
	622	sigw=(w(l+1)+Mtot)/masse(m)
[2079]	623	wq(l+1)= -(MQtot + (-w(l+1)-Mtot)* &
[1974]	624	(q(m)-0.5(1.+sigw)dzq(m)) )
	625	else
	626	w(l+1) = -Mtot
	627	wq(l+1) = -MQtot
	628	end if
[2119]	629	endif ! (-w(l+1).le.masse(l))
[1974]	630
[2201]	631	! 2) Compute wq where w > 0 (down) (DOWNWARD TRANSPORT)
[1974]	632	! ===============================
	633
[2119]	634	else if(w(l).gt.0.)then
[1974]	635
	636	! Regular scheme (transfered mass < 1 layer)
	637	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	638	if(w(l).le.masse(l))then
	639	sigw=w(l)/masse(l)
[2201]	640	wq(l)=w(l)(q(l)+0.5(1.-sigw)*dzq(l))
	641	!!-------------------------------------------------------
	642	! The following part should not be needed in the
	643	! case of an integration over subtimesteps
	644	!!-------------------------------------------------------
[1974]	645	! Extended scheme (transfered mass > 1 layer)
	646	! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	647	else
	648	m=l
	649	Mtot = masse(m)
	650	MQtot = masse(m)*q(m)
	651	if(m.ge.nlay)goto 88
	652	do while(w(l).gt.(Mtot+masse(m+1)))
	653	m=m+1
	654	Mtot = Mtot + masse(m)
	655	MQtot = MQtot + masse(m)*q(m)
	656	if(m.ge.nlay)goto 88
	657	end do
	658	88 continue
	659	if (m.lt.nlay) then
	660	sigw=(w(l)-Mtot)/masse(m+1)
	661	wq(l)=(MQtot + (w(l)-Mtot)* &
	662	(q(m+1)+0.5(1.-sigw)dzq(m+1)) )
	663	else
	664	w(l) = Mtot
	665	wq(l) = MQtot
	666	end if
[2119]	667	end if
[2100]	668
[2119]	669	end if ! w<0 (up)
[2100]	670
[2119]	671	enddo ! l = 1,nlay-1
[1974]	672
[2201]	673	do l = 1,nlay
[1974]	674
[2119]	675	! it cannot entrain more than available mass !
	676	if ( (wq(l+1)-wq(l)) .lt. -(masse(l)*q(l)) ) then
	677	wq(l+1) = wq(l)-masse(l)*q(l)
	678	end if
	679
[1974]	680	q(l)=q(l) + (wq(l+1)-wq(l))/masse(l)
	681
	682	enddo
[2079]	683
[2201]	684	END SUBROUTINE van_leer
[1974]	685
[2079]	686	!=======================================================================
	687	! Initialization of the module variables
[1974]	688
	689	subroutine ini_rocketduststorm_mod(ngrid)
	690
	691	implicit none
	692
	693	integer, intent(in) :: ngrid
	694
	695	allocate(dustliftday(ngrid))
	696
	697	end subroutine ini_rocketduststorm_mod
	698
	699	subroutine end_rocketduststorm_mod
	700
	701	implicit none
	702
	703	if (allocated(dustliftday)) deallocate(dustliftday)
	704
	705	end subroutine end_rocketduststorm_mod
	706
	707	END MODULE rocketduststorm_mod

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