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alpale_th.F90 @ 4827

Last change on this file since 4827 was 4827, checked in by jyg, 4 months ago
Improved comment for multiply_proba_notrig
Property svn:keywords set to `Id`
File size: 13.2 KB

Rev	Line
[3531]	1	!
	2	! $Id: alpale_th.F90 4827 2024-02-16 13:59:33Z jyg $
	3	!
[2558]	4	SUBROUTINE alpale_th ( dtime, lmax_th, t_seri, cell_area, &
[2513]	5	cin, s2, n2, &
	6	ale_bl_trig, ale_bl_stat, ale_bl, &
[2556]	7	alp_bl, alp_bl_stat, &
[3209]	8	proba_notrig, random_notrig, birth_rate)
[2513]	9
	10	! **************************************************************
	11	! *
	12	! ALPALE_TH *
	13	! *
	14	! *
	15	! written by : Jean-Yves Grandpeix, 11/05/2016 *
	16	! modified by : *
	17	! **************************************************************
	18
	19	USE dimphy
	20	USE ioipsl_getin_p_mod, ONLY : getin_p
	21	USE print_control_mod, ONLY: mydebug=>debug , lunout, prt_level
	22	!
	23	IMPLICIT NONE
	24
	25	!================================================================
	26	! Auteur(s) : Jean-Yves Grandpeix, 11/05/2016
	27	! Objet : Contribution of the thermal scheme to Ale and Alp
	28	!================================================================
	29
	30	! Input arguments
	31	!----------------
	32	REAL, INTENT(IN) :: dtime
[2558]	33	REAL, DIMENSION(klon), INTENT(IN) :: cell_area
[2513]	34	INTEGER, DIMENSION(klon), INTENT(IN) :: lmax_th
	35	REAL, DIMENSION(klon,klev), INTENT(IN) :: t_seri
	36	REAL, DIMENSION(klon), INTENT(IN) :: ale_bl_stat
	37	REAL, DIMENSION(klon), INTENT(IN) :: cin
	38	REAL, DIMENSION(klon), INTENT(IN) :: s2, n2
	39
	40	REAL, DIMENSION(klon), INTENT(INOUT) :: ale_bl_trig, ale_bl
	41	REAL, DIMENSION(klon), INTENT(INOUT) :: alp_bl
	42	REAL, DIMENSION(klon), INTENT(INOUT) :: alp_bl_stat
[2730]	43	REAL, DIMENSION(klon), INTENT(INOUT) :: proba_notrig
[2513]	44
[2730]	45	REAL, DIMENSION(klon), INTENT(OUT) :: random_notrig
[2556]	46
[3208]	47	REAL, DIMENSION(klon), INTENT(OUT) :: birth_rate
	48
[4089]	49	include "alpale.h"
[2513]	50
	51	! Local variables
	52	!----------------
	53	INTEGER :: i
	54	LOGICAL, SAVE :: first = .TRUE.
[4826]	55	LOGICAL, SAVE :: multiply_proba_notrig = .FALSE.
[2513]	56	REAL, SAVE :: random_notrig_max=1.
[2558]	57	REAL, SAVE :: cv_feed_area
	58	REAL :: birth_number
	59	REAL, DIMENSION(klon) :: ale_bl_ref
[2556]	60	REAL, DIMENSION(klon) :: tau_trig
[2513]	61	!
[4826]	62	!$OMP THREADPRIVATE(multiply_proba_notrig)
[2513]	63	!$OMP THREADPRIVATE(random_notrig_max)
[2558]	64	!$OMP THREADPRIVATE(cv_feed_area)
[2513]	65	!$OMP THREADPRIVATE(first)
	66	!
[2558]	67	REAL umexp ! expression of (1.-exp(-x))/x valid for all x, especially when x->0
	68	REAL x
[4826]	69	!
[3531]	70	CHARACTER (LEN=20) :: modname='alpale_th'
	71	CHARACTER (LEN=80) :: abort_message
	72
[2558]	73	umexp(x) = max(sign(1.,x-1.e-3),0.)*(1.-exp(-x))/max(x,1.e-3) + &
[3073]	74	(1.-max(sign(1.,x-1.e-3),0.))(1.-0.5x(1.-x/3.(1.-0.25*x))) !!! correct formula (jyg)
	75	!!! (1.-max(sign(1.,x-1.e-3),0.))(-0.5x(1.-x/3.(1.-0.25*x))) !!! bug introduced by mistake (jyg)
	76	!!! (1.-max(sign(1.,x-1.e-3),0.))(1.-0.5x(1.-x/3.(1.-0.25*x))) !!! initial correct formula (jyg)
[2558]	77	!
	78	!+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	79	! JYG, 20160513 : Introduction of the Effective Lifting Power (ELP), which
	80	! takes into account the area (cv_feed_area) covered by thermals contributing
	81	! to each cumulonimbus.
	82	! The use of ELP prevents singularities when the trigger probability tends to
	83	! zero. It is activated by iflag_clos_bl = 3.
	84	! The ELP values are stored in the ALP_bl variable.
	85	!
	86	!+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	87	!
[4826]	88
	89	IF (first) THEN
	90	CALL getin_p('multiply_proba_notrig',multiply_proba_notrig)
	91	IF (iflag_clos_bl .LT. 3) THEN
	92	random_notrig_max=1.
	93	CALL getin_p('random_notrig_max',random_notrig_max)
	94	ELSEIF (iflag_clos_bl .EQ. 3) THEN ! (iflag_clos_bl .LT. 3)
	95	cv_feed_area = 1.e10 ! m2
	96	CALL getin_p('cv_feed_area', cv_feed_area)
	97	ENDIF !! (iflag_clos_bl .LT. 3)
	98	first=.FALSE.
	99	ENDIF
	100
[2730]	101	!!
[4827]	102	!! Control of the multiplication of no-trigger probabilities between calls
	103	!! to the convection scheme. If multiply_proba_notrig is .false., then
	104	!! proba_notrig is set to 1 at each call to alpale_th, so that only the last call
	105	!! plays a role in the triggering of convection. If it is .true., then propa_notrig
	106	!! is saved between calls to convection and is reset to 1 only after calling the
	107	!! convection scheme.
	108	!! For instance, if the probability of no_trigger is 0.9 at each call, and if
	109	!! there are 3 calls to alpale_th between calls to the convection scheme, then the
	110	!! probability of triggering convection will be 0.1 (= 1.-0.9) if
	111	!! multiply_proba_notrig is .false. and 0.271 (= 1.-0.9^3) if multiply_proba_notrig
	112	!! is .true.
[2730]	113	!!
[4826]	114	IF (.NOT.multiply_proba_notrig) THEN
	115	DO i=1,klon
[2730]	116	proba_notrig(i)=1.
[4826]	117	ENDDO
	118	ENDIF !! (.NOT.multiply_proba_notrig)
[2730]	119	!!
	120	!!
[2558]	121	!---------------------------------------
	122	IF (iflag_clos_bl .LT. 3) THEN
	123	!---------------------------------------
	124	!
	125	! Original code (Nicolas Rochetin)
	126	! --------------------------------
[2513]	127	!cc nrlmd le 10/04/2012
	128	!-----------Stochastic triggering-----------
	129	if (iflag_trig_bl.ge.1) then
	130	!
	131	IF (prt_level .GE. 10) THEN
[3531]	132	WRITE(lunout,*)'cin, ale_bl_stat, alp_bl, alp_bl_stat ', &
[3208]	133	cin, ale_bl_stat, alp_bl, alp_bl_stat
[2513]	134	ENDIF
	135
	136
	137	!----Initialisations
	138	do i=1,klon
[2730]	139	!!jyg proba_notrig(i)=1.
[2513]	140	random_notrig(i)=1e6ale_bl_stat(i)-int(1e6ale_bl_stat(i))
	141	if ( random_notrig(i) > random_notrig_max ) random_notrig(i)=0.
	142	if ( ale_bl_trig(i) .lt. abs(cin(i))+1.e-10 ) then
	143	tau_trig(i)=tau_trig_shallow
	144	else
	145	tau_trig(i)=tau_trig_deep
	146	endif
	147	enddo
	148	!
	149	IF (prt_level .GE. 10) THEN
[3531]	150	WRITE(lunout,*)'random_notrig, tau_trig ', &
[2513]	151	random_notrig, tau_trig
[3531]	152	WRITE(lunout,*)'s_trig,s2,n2 ', &
[2513]	153	s_trig,s2,n2
	154	ENDIF
	155
	156	!Option pour re-activer l'ancien calcul de Ale_bl (iflag_trig_bl=2)
	157	IF (iflag_trig_bl.eq.1) then
	158
	159	!----Tirage al\'eatoire et calcul de ale_bl_trig
	160	do i=1,klon
	161	if ( (ale_bl_stat(i) .gt. abs(cin(i))+1.e-10) ) then
[2730]	162	proba_notrig(i)=proba_notrig(i)* &
	163	(1.-exp(-s_trig/s2(i)))*(n2(i)dtime/tau_trig(i))
[2513]	164	! print *, 'proba_notrig(i) ',proba_notrig(i)
	165	if (random_notrig(i) .ge. proba_notrig(i)) then
	166	ale_bl_trig(i)=ale_bl_stat(i)
	167	else
	168	ale_bl_trig(i)=0.
	169	endif
[3208]	170	birth_rate(i) = n2(i)exp(-s_trig/s2(i))/(tau_trig(i)cell_area(i))
	171	!!! birth_rate(i) = max(birth_rate(i),1.e-18)
[2513]	172	else
[2730]	173	!!jyg proba_notrig(i)=1.
[3208]	174	birth_rate(i) = 0.
[2513]	175	random_notrig(i)=0.
	176	ale_bl_trig(i)=0.
	177	endif
	178	enddo
	179
	180	ELSE IF (iflag_trig_bl.ge.2) then
	181
	182	do i=1,klon
	183	if ( (Ale_bl(i) .gt. abs(cin(i))+1.e-10) ) then
[2730]	184	proba_notrig(i)=proba_notrig(i)* &
	185	(1.-exp(-s_trig/s2(i)))*(n2(i)dtime/tau_trig(i))
[2513]	186	! print *, 'proba_notrig(i) ',proba_notrig(i)
	187	if (random_notrig(i) .ge. proba_notrig(i)) then
	188	ale_bl_trig(i)=Ale_bl(i)
	189	else
	190	ale_bl_trig(i)=0.
	191	endif
[3208]	192	birth_rate(i) = n2(i)exp(-s_trig/s2(i))/(tau_trig(i)cell_area(i))
	193	!!! birth_rate(i) = max(birth_rate(i),1.e-18)
[2513]	194	else
[2730]	195	!!jyg proba_notrig(i)=1.
[3208]	196	birth_rate(i) = 0.
[2513]	197	random_notrig(i)=0.
	198	ale_bl_trig(i)=0.
	199	endif
	200	enddo
	201
	202	ENDIF
	203
	204	!
	205	IF (prt_level .GE. 10) THEN
[3531]	206	WRITE(lunout,*)'proba_notrig, ale_bl_trig ', &
[2513]	207	proba_notrig, ale_bl_trig
	208	ENDIF
	209
	210	endif !(iflag_trig_bl)
	211
	212	!-----------Statistical closure-----------
	213	if (iflag_clos_bl.eq.1) then
	214
	215	do i=1,klon
	216	!CR: alp probabiliste
	217	if (ale_bl_trig(i).gt.0.) then
	218	alp_bl(i)=alp_bl(i)/(1.-min(proba_notrig(i),0.999))
	219	endif
	220	enddo
	221
	222	else if (iflag_clos_bl.eq.2) then
	223
	224	!CR: alp calculee dans thermcell_main
	225	do i=1,klon
	226	alp_bl(i)=alp_bl_stat(i)
	227	enddo
	228
	229	else
	230
	231	alp_bl_stat(:)=0.
	232
	233	endif !(iflag_clos_bl)
	234
[2558]	235	!
	236	!---------------------------------------
	237	ELSEIF (iflag_clos_bl .EQ. 3) THEN ! (iflag_clos_bl .LT. 3)
	238	!---------------------------------------
	239	!
	240	! New code with Effective Lifting Power
	241	! -------------------------------------
	242
	243	!-----------Stochastic triggering-----------
	244	if (iflag_trig_bl.ge.1) then
	245	!
	246	IF (prt_level .GE. 10) THEN
[3531]	247	WRITE(lunout,*)'cin, ale_bl_stat, alp_bl_stat ', &
[2558]	248	cin, ale_bl_stat, alp_bl_stat
	249	ENDIF
	250
	251	! Use ale_bl_stat (Rochetin's code) or ale_bl (old code) according to
	252	! iflag_trig_bl value.
	253	IF (iflag_trig_bl.eq.1) then ! use ale_bl_stat (Rochetin computation)
	254	do i=1,klon
	255	ale_bl_ref(i)=ale_bl_stat(i)
	256	enddo
	257	ELSE IF (iflag_trig_bl.ge.2) then ! use ale_bl (old computation)
	258	do i=1,klon
	259	ale_bl_ref(i)=Ale_bl(i)
	260	enddo
	261	ENDIF ! (iflag_trig_bl.eq.1)
	262
	263
	264	!----Initializations and random number generation
	265	do i=1,klon
[2730]	266	!!jyg proba_notrig(i)=1.
[2558]	267	random_notrig(i)=1e6ale_bl_stat(i)-int(1e6ale_bl_stat(i))
	268	if ( ale_bl_trig(i) .lt. abs(cin(i))+1.e-10 ) then
	269	tau_trig(i)=tau_trig_shallow
	270	else
	271	tau_trig(i)=tau_trig_deep
	272	endif
	273	enddo
	274	!
	275	IF (prt_level .GE. 10) THEN
[3531]	276	WRITE(lunout,*)'random_notrig, tau_trig ', &
[2558]	277	random_notrig, tau_trig
[3531]	278	WRITE(lunout,*)'s_trig,s2,n2 ', &
[2558]	279	s_trig,s2,n2
	280	ENDIF
	281
	282	!----alp_bl computation
	283	do i=1,klon
	284	if ( (ale_bl_ref(i) .gt. abs(cin(i))+1.e-10) ) then
	285	birth_number = n2(i)*exp(-s_trig/s2(i))
	286	birth_rate(i) = birth_number/(tau_trig(i)*cell_area(i))
[3208]	287	!!! birth_rate(i) = max(birth_rate(i),1.e-18)
[2730]	288	proba_notrig(i)=proba_notrig(i)exp(-birth_numberdtime/tau_trig(i))
[2558]	289	Alp_bl(i) = Alp_bl(i)* &
	290	umexp(-birth_number*cv_feed_area/cell_area(i))/ &
	291	umexp(-birth_numberdtime/tau_trig(i)) &
	292	tau_trig(i)cv_feed_area/(dtimecell_area(i))
	293	else
[2730]	294	!!jyg proba_notrig(i)=1.
[3208]	295	birth_rate(i)=0.
[2558]	296	random_notrig(i)=0.
	297	alp_bl(i)=0.
	298	endif
	299	enddo
	300
	301	!----ale_bl_trig computation
	302	do i=1,klon
	303	if (random_notrig(i) .ge. proba_notrig(i)) then
	304	ale_bl_trig(i)=ale_bl_ref(i)
	305	else
	306	ale_bl_trig(i)=0.
	307	endif
	308	enddo
	309
	310	!
	311	IF (prt_level .GE. 10) THEN
[3531]	312	WRITE(lunout,*)'proba_notrig, ale_bl_trig ', &
[2558]	313	proba_notrig, ale_bl_trig
	314	ENDIF
	315
	316	endif !(iflag_trig_bl .ge. 1)
	317
	318	!---------------------------------------
	319	ENDIF ! (iflag_clos_bl .LT. 3)
	320	!---------------------------------------
	321
[2513]	322	IF (prt_level .GE. 10) THEN
[3531]	323	WRITE(lunout,*)'alpale_th: ale_bl_trig, alp_bl_stat, birth_rate ', &
[3209]	324	ale_bl_trig(1), alp_bl_stat(1), birth_rate(1)
[2513]	325	ENDIF
	326
	327	!cc fin nrlmd le 10/04/2012
[2554]	328	!
[2513]	329	!IM/FH: 2011/02/23
	330	! Couplage Thermiques/Emanuel seulement si T<0
	331	if (iflag_coupl==2) then
	332	IF (prt_level .GE. 10) THEN
[3531]	333	WRITE(lunout,*)'Couplage Thermiques/Emanuel seulement si T<0'
[2513]	334	ENDIF
	335	do i=1,klon
	336	if (t_seri(i,lmax_th(i))>273.) then
	337	Ale_bl(i)=0.
	338	endif
	339	enddo
[3531]	340	! print *,'In order to run with iflag_coupl=2, you have to comment out the following stop'
	341	! STOP
	342	abort_message='In order to run with iflag_coupl=2, you have to comment out the following abort'
	343	CALL abort_physic(modname,abort_message,1)
[2513]	344	endif
	345	RETURN
	346	END
	347

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