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lmdz_lscp.f90 @ 5422

Last change on this file since 5422 was 5419, checked in by evignon, 5 days ago
petit ajustement a mon commit precedent sur l'externalisation des precip
File size: 49.0 KB

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[4664]	1	MODULE lmdz_lscp
[3999]	2
	3	IMPLICIT NONE
	4
	5	CONTAINS
	6
	7	!++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[4380]	8	SUBROUTINE lscp(klon,klev,dtime,missing_val, &
[5396]	9	paprs, pplay, omega, temp, qt, ql_seri, qi_seri, &
	10	ptconv, ratqs, sigma_qtherm, &
[5204]	11	d_t, d_q, d_ql, d_qi, rneb, rneblsvol, &
[5007]	12	pfraclr, pfracld, &
	13	cldfraliq, sigma2_icefracturb,mean_icefracturb, &
[4530]	14	radocond, radicefrac, rain, snow, &
[3999]	15	frac_impa, frac_nucl, beta, &
[5007]	16	prfl, psfl, rhcl, qta, fraca, &
	17	tv, pspsk, tla, thl, iflag_cld_th, &
[5204]	18	iflag_ice_thermo, distcltop, temp_cltop, &
	19	tke, tke_dissip, &
	20	cell_area, &
	21	cf_seri, rvc_seri, u_seri, v_seri, &
	22	qsub, qissr, qcld, subfra, issrfra, gamma_cond, &
[5396]	23	dcf_sub, dcf_con, dcf_mix, &
[5204]	24	dqi_adj, dqi_sub, dqi_con, dqi_mix, dqvc_adj, &
	25	dqvc_sub, dqvc_con, dqvc_mix, qsatl, qsati, &
	26	Tcontr, qcontr, qcontr2, fcontrN, fcontrP, dcf_avi,&
	27	dqi_avi, dqvc_avi, flight_dist, flight_h2o, &
[4803]	28	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv, &
[4830]	29	qraindiag, qsnowdiag, dqreva, dqssub, dqrauto, &
	30	dqrcol, dqrmelt, dqrfreez, dqsauto, dqsagg, dqsrim,&
[4819]	31	dqsmelt, dqsfreez)
[3999]	32
	33	!++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	34	! Authors: Z.X. Li (LMD), J-L Dufresne (LMD), C. Rio (LMD), J-Y Grandpeix (LMD)
	35	! A. JAM (LMD), J-B Madeleine (LMD), E. Vignon (LMD), L. Touzze-Peiffert (LMD)
	36	!--------------------------------------------------------------------------------
	37	! Date: 01/2021
	38	!--------------------------------------------------------------------------------
	39	! Aim: Large Scale Clouds and Precipitation (LSCP)
[4226]	40	!
[3999]	41	! This code is a new version of the fisrtilp.F90 routine, which is itself a
[4072]	42	! merge of 'first' (superrsaturation physics, P. LeVan K. Laval)
[3999]	43	! and 'ilp' (il pleut, L. Li)
	44	!
[4380]	45	! Compared to the original fisrtilp code, lscp
[3999]	46	! -> assumes thermcep = .TRUE. all the time (fisrtilp inconsistent when .FALSE.)
	47	! -> consider always precipitation thermalisation (fl_cor_ebil>0)
	48	! -> option iflag_fisrtilp_qsat<0 no longer possible (qsat does not evolve with T)
	49	! -> option "oldbug" by JYG has been removed
	50	! -> iflag_t_glace >0 always
	51	! -> the 'all or nothing' cloud approach is no longer available (cpartiel=T always)
	52	! -> rectangular distribution from L. Li no longer available
	53	! -> We always account for the Wegener-Findeisen-Bergeron process (iflag_bergeron = 2 in fisrt)
	54	!--------------------------------------------------------------------------------
	55	! References:
	56	!
[4412]	57	! - Bony, S., & Emanuel, K. A. 2001, JAS, doi: 10.1175/1520-0469(2001)058<3158:APOTCA>2.0.CO;2
[3999]	58	! - Hourdin et al. 2013, Clim Dyn, doi:10.1007/s00382-012-1343-y
	59	! - Jam et al. 2013, Boundary-Layer Meteorol, doi:10.1007/s10546-012-9789-3
[4412]	60	! - Jouhaud, et al. 2018. JAMES, doi:10.1029/2018MS001379
[3999]	61	! - Madeleine et al. 2020, JAMES, doi:10.1029/2020MS002046
[4412]	62	! - Touzze-Peifert Ludo, PhD thesis, p117-124
[3999]	63	! -------------------------------------------------------------------------------
	64	! Code structure:
	65	!
[4226]	66	! P0> Thermalization of the precipitation coming from the overlying layer
[3999]	67	! P1> Evaporation of the precipitation (falling from the k+1 level)
	68	! P2> Cloud formation (at the k level)
[4412]	69	! P2.A.1> With the PDFs, calculation of cloud properties using the inital
[3999]	70	! values of T and Q
	71	! P2.A.2> Coupling between condensed water and temperature
	72	! P2.A.3> Calculation of final quantities associated with cloud formation
[4412]	73	! P2.B> Release of Latent heat after cloud formation
[3999]	74	! P3> Autoconversion to precipitation (k-level)
	75	! P4> Wet scavenging
	76	!------------------------------------------------------------------------------
	77	! Some preliminary comments (JBM) :
	78	!
	79	! The cloud water that the radiation scheme sees is not the same that the cloud
	80	! water used in the physics and the dynamics
	81	!
[4412]	82	! During the autoconversion to precipitation (P3 step), radocond (cloud water used
[3999]	83	! by the radiation scheme) is calculated as an average of the water that remains
	84	! in the cloud during the precipitation and not the water remaining at the end
	85	! of the time step. The latter is used in the rest of the physics and advected
	86	! by the dynamics.
	87	!
	88	! In summary:
	89	!
	90	! Radiation:
	91	! xflwc(newmicro)+xfiwc(newmicro) =
[4412]	92	! radocond=lwcon(nc)+iwcon(nc)
[3999]	93	!
	94	! Notetheless, be aware of:
	95	!
[4412]	96	! radocond .NE. ocond(nc)
[3999]	97	! i.e.:
	98	! lwcon(nc)+iwcon(nc) .NE. ocond(nc)
[4412]	99	! but oliq+(ocond-oliq) .EQ. ocond
[3999]	100	! (which is not trivial)
	101	!++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[4226]	102	!
[4654]	103
	104	! USE de modules contenant des fonctions.
[4651]	105	USE lmdz_cloudth, ONLY : cloudth, cloudth_v3, cloudth_v6, cloudth_mpc
[5007]	106	USE lmdz_lscp_tools, ONLY : calc_qsat_ecmwf, calc_gammasat
[5413]	107	USE lmdz_lscp_tools, ONLY : icefrac_lscp, icefrac_lscp_turb, distance_to_cloud_top
[5241]	108	USE lmdz_lscp_condensation, ONLY : condensation_lognormal, condensation_ice_supersat
[5413]	109	USE lmdz_lscp_precip, ONLY : histprecip_precld, histprecip_postcld
	110	USE lmdz_lscp_precip, ONLY : poprecip_precld, poprecip_postcld
[3999]	111
[4664]	112	! Use du module lmdz_lscp_ini contenant les constantes
[5204]	113	USE lmdz_lscp_ini, ONLY : prt_level, lunout, eps
[5413]	114	USE lmdz_lscp_ini, ONLY : seuil_neb, iflag_evap_prec, DDT0
	115	USE lmdz_lscp_ini, ONLY : ok_radocond_snow, a_tr_sca
	116	USE lmdz_lscp_ini, ONLY : iflag_cloudth_vert, iflag_t_glace, iflag_fisrtilp_qsat
	117	USE lmdz_lscp_ini, ONLY : t_glace_min, min_frac_th_cld
	118	USE lmdz_lscp_ini, ONLY : RCPD, RLSTT, RLVTT, RVTMP2, RTT, RD, RG
[5412]	119	USE lmdz_lscp_ini, ONLY : ok_poprecip, ok_bug_phase_lscp
[5211]	120	USE lmdz_lscp_ini, ONLY : ok_ice_supersat, ok_unadjusted_clouds, iflag_icefrac
[5204]	121
[3999]	122	IMPLICIT NONE
	123
	124	!===============================================================================
[4380]	125	! VARIABLES DECLARATION
[3999]	126	!===============================================================================
	127
	128	! INPUT VARIABLES:
	129	!-----------------
	130
[4380]	131	INTEGER, INTENT(IN) :: klon,klev ! number of horizontal grid points and vertical levels
[3999]	132	REAL, INTENT(IN) :: dtime ! time step [s]
[4380]	133	REAL, INTENT(IN) :: missing_val ! missing value for output
[4059]	134
[3999]	135	REAL, DIMENSION(klon,klev+1), INTENT(IN) :: paprs ! inter-layer pressure [Pa]
	136	REAL, DIMENSION(klon,klev), INTENT(IN) :: pplay ! mid-layer pressure [Pa]
[4654]	137	REAL, DIMENSION(klon,klev), INTENT(IN) :: temp ! temperature (K)
[5383]	138	REAL, DIMENSION(klon,klev), INTENT(IN) :: omega ! vertical velocity [Pa/s]
[4686]	139	REAL, DIMENSION(klon,klev), INTENT(IN) :: qt ! total specific humidity (in vapor phase in input) [kg/kg]
[5396]	140	REAL, DIMENSION(klon,klev), INTENT(IN) :: ql_seri ! liquid specific content [kg/kg]
	141	REAL, DIMENSION(klon,klev), INTENT(IN) :: qi_seri ! ice specific content [kg/kg]
[3999]	142	INTEGER, INTENT(IN) :: iflag_cld_th ! flag that determines the distribution of convective clouds
	143	INTEGER, INTENT(IN) :: iflag_ice_thermo! flag to activate the ice thermodynamics
[4226]	144	! CR: if iflag_ice_thermo=2, only convection is active
[3999]	145	LOGICAL, DIMENSION(klon,klev), INTENT(IN) :: ptconv ! grid points where deep convection scheme is active
	146
	147	!Inputs associated with thermal plumes
[4226]	148
[5007]	149	REAL, DIMENSION(klon,klev), INTENT(IN) :: tv ! virtual potential temperature [K]
	150	REAL, DIMENSION(klon,klev), INTENT(IN) :: qta ! specific humidity within thermals [kg/kg]
	151	REAL, DIMENSION(klon,klev), INTENT(IN) :: fraca ! fraction of thermals within the mesh [-]
	152	REAL, DIMENSION(klon,klev), INTENT(IN) :: pspsk ! exner potential (p/100000)**(R/cp)
	153	REAL, DIMENSION(klon,klev), INTENT(IN) :: tla ! liquid temperature within thermals [K]
[5413]	154	REAL, DIMENSION(klon,klev+1), INTENT(IN) :: tke !--turbulent kinetic energy [m2/s2]
	155	REAL, DIMENSION(klon,klev+1), INTENT(IN) :: tke_dissip !--TKE dissipation [m2/s3]
[3999]	156
	157	! INPUT/OUTPUT variables
	158	!------------------------
[4562]	159
[5208]	160	REAL, DIMENSION(klon,klev), INTENT(INOUT) :: thl ! liquid potential temperature [K]
	161	REAL, DIMENSION(klon,klev), INTENT(INOUT) :: ratqs,sigma_qtherm ! function of pressure that sets the large-scale
[4059]	162
[5208]	163
[5204]	164	! INPUT/OUTPUT condensation and ice supersaturation
	165	!--------------------------------------------------
	166	REAL, DIMENSION(klon,klev), INTENT(INOUT):: cf_seri ! cloud fraction [-]
	167	REAL, DIMENSION(klon,klev), INTENT(INOUT):: rvc_seri ! cloudy water vapor to total water vapor ratio [-]
	168	REAL, DIMENSION(klon,klev), INTENT(IN) :: u_seri ! eastward wind [m/s]
	169	REAL, DIMENSION(klon,klev), INTENT(IN) :: v_seri ! northward wind [m/s]
	170	REAL, DIMENSION(klon), INTENT(IN) :: cell_area ! area of each cell [m2]
[4380]	171
[5204]	172	! INPUT/OUTPUT aviation
	173	!--------------------------------------------------
	174	REAL, DIMENSION(klon,klev), INTENT(IN) :: flight_dist ! Aviation distance flown within the mesh [m/s/mesh]
	175	REAL, DIMENSION(klon,klev), INTENT(IN) :: flight_h2o ! Aviation H2O emitted within the mesh [kg H2O/s/mesh]
[3999]	176
	177	! OUTPUT variables
	178	!-----------------
	179
[5204]	180	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_t ! temperature increment [K]
	181	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_q ! specific humidity increment [kg/kg]
	182	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_ql ! liquid water increment [kg/kg]
	183	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_qi ! cloud ice mass increment [kg/kg]
	184	REAL, DIMENSION(klon,klev), INTENT(OUT) :: rneb ! cloud fraction [-]
	185	REAL, DIMENSION(klon,klev), INTENT(OUT) :: rneblsvol ! cloud fraction per unit volume [-]
	186	REAL, DIMENSION(klon,klev), INTENT(OUT) :: pfraclr ! precip fraction clear-sky part [-]
	187	REAL, DIMENSION(klon,klev), INTENT(OUT) :: pfracld ! precip fraction cloudy part [-]
[5007]	188	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cldfraliq ! liquid fraction of cloud [-]
	189	REAL, DIMENSION(klon,klev), INTENT(OUT) :: sigma2_icefracturb ! Variance of the diagnostic supersaturation distribution (icefrac_turb) [-]
	190	REAL, DIMENSION(klon,klev), INTENT(OUT) :: mean_icefracturb ! Mean of the diagnostic supersaturation distribution (icefrac_turb) [-]
[5204]	191	REAL, DIMENSION(klon,klev), INTENT(OUT) :: radocond ! condensed water used in the radiation scheme [kg/kg]
	192	REAL, DIMENSION(klon,klev), INTENT(OUT) :: radicefrac ! ice fraction of condensed water for radiation scheme
	193	REAL, DIMENSION(klon,klev), INTENT(OUT) :: rhcl ! clear-sky relative humidity [-]
	194	REAL, DIMENSION(klon), INTENT(OUT) :: rain ! surface large-scale rainfall [kg/s/m2]
	195	REAL, DIMENSION(klon), INTENT(OUT) :: snow ! surface large-scale snowfall [kg/s/m2]
	196	REAL, DIMENSION(klon,klev+1), INTENT(OUT) :: prfl ! large-scale rainfall flux in the column [kg/s/m2]
	197	REAL, DIMENSION(klon,klev+1), INTENT(OUT) :: psfl ! large-scale snowfall flux in the column [kg/s/m2]
	198	REAL, DIMENSION(klon,klev), INTENT(OUT) :: distcltop ! distance to cloud top [m]
	199	REAL, DIMENSION(klon,klev), INTENT(OUT) :: temp_cltop ! temperature of cloud top [K]
	200	REAL, DIMENSION(klon,klev), INTENT(OUT) :: beta ! conversion rate of condensed water
[4686]	201
[5007]	202	! fraction of aerosol scavenging through impaction and nucleation (for on-line)
[3999]	203
[5007]	204	REAL, DIMENSION(klon,klev), INTENT(OUT) :: frac_impa ! scavenging fraction due tu impaction [-]
	205	REAL, DIMENSION(klon,klev), INTENT(OUT) :: frac_nucl ! scavenging fraction due tu nucleation [-]
[3999]	206
[5204]	207	! for condensation and ice supersaturation
[3999]	208
[5204]	209	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsub !--specific total water content in sub-saturated clear sky region [kg/kg]
	210	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qissr !--specific total water content in supersat region [kg/kg]
	211	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qcld !--specific total water content in cloudy region [kg/kg]
	212	REAL, DIMENSION(klon,klev), INTENT(OUT) :: subfra !--mesh fraction of subsaturated clear sky [-]
	213	REAL, DIMENSION(klon,klev), INTENT(OUT) :: issrfra !--mesh fraction of ISSR [-]
	214	REAL, DIMENSION(klon,klev), INTENT(OUT) :: gamma_cond !--coefficient governing the ice nucleation RHi threshold [-]
	215	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_sub !--cloud fraction tendency because of sublimation [s-1]
	216	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_con !--cloud fraction tendency because of condensation [s-1]
	217	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_mix !--cloud fraction tendency because of cloud mixing [s-1]
	218	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_adj !--specific ice content tendency because of temperature adjustment [kg/kg/s]
	219	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_sub !--specific ice content tendency because of sublimation [kg/kg/s]
	220	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_con !--specific ice content tendency because of condensation [kg/kg/s]
	221	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_mix !--specific ice content tendency because of cloud mixing [kg/kg/s]
	222	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_adj !--specific cloud water vapor tendency because of temperature adjustment [kg/kg/s]
	223	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_sub !--specific cloud water vapor tendency because of sublimation [kg/kg/s]
	224	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_con !--specific cloud water vapor tendency because of condensation [kg/kg/s]
	225	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_mix !--specific cloud water vapor tendency because of cloud mixing [kg/kg/s]
	226	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsatl !--saturation specific humidity wrt liquid [kg/kg]
	227	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsati !--saturation specific humidity wrt ice [kg/kg]
	228
	229	! for contrails and aviation
	230
	231	REAL, DIMENSION(klon,klev), INTENT(OUT) :: Tcontr !--threshold temperature for contrail formation [K]
	232	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qcontr !--threshold humidity for contrail formation [kg/kg]
	233	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qcontr2 !--// (2nd expression more consistent with LMDZ expression of q)
	234	REAL, DIMENSION(klon,klev), INTENT(OUT) :: fcontrN !--fraction of grid favourable to non-persistent contrails
	235	REAL, DIMENSION(klon,klev), INTENT(OUT) :: fcontrP !--fraction of grid favourable to persistent contrails
	236	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_avi !--cloud fraction tendency because of aviation [s-1]
	237	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_avi !--specific ice content tendency because of aviation [kg/kg/s]
	238	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_avi !--specific cloud water vapor tendency because of aviation [kg/kg/s]
	239
	240
[4803]	241	! for POPRECIP
[4686]	242
[4830]	243	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qraindiag !--DIAGNOSTIC specific rain content [kg/kg]
	244	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsnowdiag !--DIAGNOSTIC specific snow content [kg/kg]
[4819]	245	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqreva !--rain tendendy due to evaporation [kg/kg/s]
	246	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqssub !--snow tendency due to sublimation [kg/kg/s]
	247	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrcol !--rain tendendy due to collection by rain of liquid cloud droplets [kg/kg/s]
	248	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsagg !--snow tendency due to collection of lcoud ice by aggregation [kg/kg/s]
	249	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrauto !--rain tendency due to autoconversion of cloud liquid [kg/kg/s]
	250	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsauto !--snow tendency due to autoconversion of cloud ice [kg/kg/s]
	251	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsrim !--snow tendency due to riming [kg/kg/s]
	252	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsmelt !--snow tendency due to melting [kg/kg/s]
	253	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrmelt !--rain tendency due to melting [kg/kg/s]
	254	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsfreez !--snow tendency due to freezing [kg/kg/s]
	255	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrfreez !--rain tendency due to freezing [kg/kg/s]
[4686]	256
[5204]	257	! for thermals
[4803]	258
[5204]	259	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_sth !--mean saturation deficit in thermals
	260	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_senv !--mean saturation deficit in environment
	261	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_sigmath !--std of saturation deficit in thermals
	262	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_sigmaenv !--std of saturation deficit in environment
	263
	264
[3999]	265	! LOCAL VARIABLES:
	266	!----------------
[5383]	267	REAL,DIMENSION(klon) :: qice_ini
[4654]	268	REAL, DIMENSION(klon,klev) :: ctot
	269	REAL, DIMENSION(klon,klev) :: ctot_vol
	270	REAL, DIMENSION(klon) :: zqs, zdqs
[5413]	271	REAL :: zdelta
[4654]	272	REAL, DIMENSION(klon) :: zdqsdT_raw
[5007]	273	REAL, DIMENSION(klon) :: gammasat,dgammasatdt ! coefficient to make cold condensation at the correct RH and derivative wrt T
	274	REAL, DIMENSION(klon) :: Tbef,qlbef,DT ! temperature, humidity and temp. variation during lognormal iteration
[4654]	275	REAL :: num,denom
	276	REAL :: cste
[4910]	277	REAL, DIMENSION(klon) :: zfice_th
[4654]	278	REAL, DIMENSION(klon) :: qcloud, qincloud_mpc
[5413]	279	REAL, DIMENSION(klon) :: zrfl, zifl
[4654]	280	REAL, DIMENSION(klon) :: zoliq, zcond, zq, zqn
	281	REAL, DIMENSION(klon) :: zoliql, zoliqi
	282	REAL, DIMENSION(klon) :: zt
[5408]	283	REAL, DIMENSION(klon) :: zfice,zneb
[4654]	284	REAL, DIMENSION(klon) :: dzfice
[5007]	285	REAL, DIMENSION(klon) :: zfice_turb, dzfice_turb
[4654]	286	REAL, DIMENSION(klon) :: qtot, qzero
[3999]	287	! Variables precipitation energy conservation
[4654]	288	REAL, DIMENSION(klon) :: zmqc
	289	REAL :: zalpha_tr
	290	REAL :: zfrac_lessi
	291	REAL, DIMENSION(klon) :: zprec_cond
	292	REAL, DIMENSION(klon) :: zlh_solid
[4803]	293	REAL, DIMENSION(klon) :: ztupnew
[4913]	294	REAL, DIMENSION(klon) :: zqvapclr, zqupnew ! for poprecip evap / subl
[4654]	295	REAL, DIMENSION(klon) :: zrflclr, zrflcld
	296	REAL, DIMENSION(klon) :: ziflclr, ziflcld
[5411]	297	REAL, DIMENSION(klon) :: znebprecip, znebprecipclr, znebprecipcld
[5413]	298	REAL, DIMENSION(klon) :: tot_zneb
[4654]	299	REAL :: qlmpc, qimpc, rnebmpc
[5007]	300	REAL, DIMENSION(klon) :: zdistcltop, ztemp_cltop
	301	REAL, DIMENSION(klon) :: zqliq, zqice, zqvapcl ! for icefrac_lscp_turb
[5413]	302
	303	! for quantity of condensates seen by radiation
	304	REAL, DIMENSION(klon) :: zradocond, zradoice
	305	REAL, DIMENSION(klon) :: zrho_up, zvelo_up
[5204]	306
	307	! for condensation and ice supersaturation
	308	REAL, DIMENSION(klon) :: qvc, shear
	309	REAL :: delta_z
	310	!--Added for ice supersaturation (ok_ice_supersat) and contrails (ok_plane_contrails)
	311	! Constants used for calculating ratios that are advected (using a parent-child
	312	! formalism). This is not done in the dynamical core because at this moment,
	313	! only isotopes can use this parent-child formalism. Note that the two constants
	314	! are the same as the one use in the dynamical core, being also defined in
	315	! dyn3d_common/infotrac.F90
	316	REAL :: min_qParent, min_ratio
[3999]	317
[5413]	318	INTEGER i, k, kk, iter
[4654]	319	INTEGER, DIMENSION(klon) :: n_i
[4226]	320	INTEGER ncoreczq
[4654]	321	INTEGER, DIMENSION(klon,klev) :: mpc_bl_points
[4803]	322	LOGICAL iftop
[3999]	323
[4654]	324	LOGICAL, DIMENSION(klon) :: lognormale
	325	LOGICAL, DIMENSION(klon) :: keepgoing
[3999]	326
	327	CHARACTER (len = 20) :: modname = 'lscp'
	328	CHARACTER (len = 80) :: abort_message
	329
	330
	331	!===============================================================================
	332	! INITIALISATION
	333	!===============================================================================
	334
[4226]	335	! Few initial checks
[3999]	336
[4654]	337
[3999]	338	IF (iflag_fisrtilp_qsat .LT. 0) THEN
[4226]	339	abort_message = 'lscp cannot be used with iflag_fisrtilp<0'
	340	CALL abort_physic(modname,abort_message,1)
[3999]	341	ENDIF
	342
	343	! Few initialisations
	344
	345	ctot_vol(1:klon,1:klev)=0.0
	346	rneblsvol(1:klon,1:klev)=0.0
[5411]	347	znebprecip(:)=0.0
[4226]	348	znebprecipclr(:)=0.0
	349	znebprecipcld(:)=0.0
[3999]	350	mpc_bl_points(:,:)=0
	351
	352	IF (prt_level>9) WRITE(lunout,*) 'NUAGES4 A. JAM'
	353
	354	! AA for 'safety' reasons
	355	zalpha_tr = 0.
	356	zfrac_lessi = 0.
[4380]	357	beta(:,:)= 0.
[3999]	358
[4380]	359	! Initialisation of variables:
	360
[3999]	361	prfl(:,:) = 0.0
	362	psfl(:,:) = 0.0
	363	d_t(:,:) = 0.0
	364	d_q(:,:) = 0.0
	365	d_ql(:,:) = 0.0
	366	d_qi(:,:) = 0.0
	367	rneb(:,:) = 0.0
[4530]	368	pfraclr(:,:)=0.0
	369	pfracld(:,:)=0.0
[5007]	370	cldfraliq(:,:)=0.
	371	sigma2_icefracturb(:,:)=0.
	372	mean_icefracturb(:,:)=0.
[4412]	373	radocond(:,:) = 0.0
[3999]	374	radicefrac(:,:) = 0.0
[4226]	375	frac_nucl(:,:) = 1.0
	376	frac_impa(:,:) = 1.0
[3999]	377	rain(:) = 0.0
	378	snow(:) = 0.0
[4114]	379	zfice(:)=0.0
	380	dzfice(:)=0.0
[5007]	381	zfice_turb(:)=0.0
	382	dzfice_turb(:)=0.0
[3999]	383	zrfl(:) = 0.0
	384	zifl(:) = 0.0
	385	zneb(:) = seuil_neb
[4226]	386	zrflclr(:) = 0.0
	387	ziflclr(:) = 0.0
	388	zrflcld(:) = 0.0
	389	ziflcld(:) = 0.0
	390	tot_zneb(:) = 0.0
	391	qzero(:) = 0.0
[5007]	392	zdistcltop(:)=0.0
	393	ztemp_cltop(:) = 0.0
[4803]	394	ztupnew(:)=0.0
[5204]	395
[4654]	396	distcltop(:,:)=0.
	397	temp_cltop(:,:)=0.
[5007]	398
[5204]	399	!--Ice supersaturation
	400	gamma_cond(:,:) = 1.
	401	qissr(:,:) = 0.
	402	issrfra(:,:) = 0.
	403	dcf_sub(:,:) = 0.
	404	dcf_con(:,:) = 0.
	405	dcf_mix(:,:) = 0.
	406	dqi_adj(:,:) = 0.
	407	dqi_sub(:,:) = 0.
	408	dqi_con(:,:) = 0.
	409	dqi_mix(:,:) = 0.
	410	dqvc_adj(:,:) = 0.
	411	dqvc_sub(:,:) = 0.
	412	dqvc_con(:,:) = 0.
	413	dqvc_mix(:,:) = 0.
	414	fcontrN(:,:) = 0.
	415	fcontrP(:,:) = 0.
	416	Tcontr(:,:) = missing_val
	417	qcontr(:,:) = missing_val
	418	qcontr2(:,:) = missing_val
	419	dcf_avi(:,:) = 0.
	420	dqi_avi(:,:) = 0.
	421	dqvc_avi(:,:) = 0.
	422	qvc(:) = 0.
	423	shear(:) = 0.
	424	min_qParent = 1.e-30
	425	min_ratio = 1.e-16
	426
[4803]	427	!-- poprecip
[4830]	428	qraindiag(:,:)= 0.
	429	qsnowdiag(:,:)= 0.
[4819]	430	dqreva(:,:) = 0.
	431	dqrauto(:,:) = 0.
	432	dqrmelt(:,:) = 0.
	433	dqrfreez(:,:) = 0.
	434	dqrcol(:,:) = 0.
	435	dqssub(:,:) = 0.
	436	dqsauto(:,:) = 0.
	437	dqsrim(:,:) = 0.
	438	dqsagg(:,:) = 0.
	439	dqsfreez(:,:) = 0.
	440	dqsmelt(:,:) = 0.
[4913]	441	zqupnew(:) = 0.
	442	zqvapclr(:) = 0.
[3999]	443
[4803]	444
	445
[4392]	446	!c_iso: variable initialisation for iso
	447
	448
[3999]	449	!===============================================================================
	450	! BEGINNING OF VERTICAL LOOP FROM TOP TO BOTTOM
	451	!===============================================================================
	452
	453	ncoreczq=0
	454
	455	DO k = klev, 1, -1
	456
[5408]	457	qice_ini = qi_seri(:,k)
	458
[4803]	459	IF (k.LE.klev-1) THEN
	460	iftop=.false.
	461	ELSE
	462	iftop=.true.
	463	ENDIF
	464
[3999]	465	! Initialisation temperature and specific humidity
[5007]	466	! temp(klon,klev) is not modified by the routine, instead all changes in temperature are made on zt
	467	! at the end of the klon loop, a temperature incremtent d_t due to all processes
	468	! (thermalization, evap/sub incoming precip, cloud formation, precipitation processes) is calculated
	469	! d_t = temperature tendency due to lscp
	470	! The temperature of the overlying layer is updated here because needed for thermalization
[3999]	471	DO i = 1, klon
[4654]	472	zt(i)=temp(i,k)
[4686]	473	zq(i)=qt(i,k)
[4803]	474	IF (.not. iftop) THEN
[4913]	475	ztupnew(i) = temp(i,k+1) + d_t(i,k+1)
	476	zqupnew(i) = qt(i,k+1) + d_q(i,k+1) + d_ql(i,k+1) + d_qi(i,k+1)
	477	!--zqs(i) is the saturation specific humidity in the layer above
	478	zqvapclr(i) = MAX(0., qt(i,k+1) + d_q(i,k+1) - rneb(i,k+1) * zqs(i))
[4803]	479	ENDIF
[4392]	480	!c_iso init of iso
[3999]	481	ENDDO
[5408]	482
	483	! --------------------------------------------------------------------
	484	! P1> Precipitation processes, before cloud formation:
	485	! Thermalization of precipitation falling from the overlying layer AND
	486	! Precipitation evaporation/sublimation/melting
	487	!---------------------------------------------------------------------
[4803]	488
	489	!================================================================
	490	! Flag for the new and more microphysical treatment of precipitation from Atelier Nuage (R)
[5408]	491	IF ( ok_poprecip .OR. ( iflag_evap_prec .EQ. 6 ) ) THEN
[4803]	492
[5408]	493	CALL poprecip_precld(klon, dtime, iftop, paprs(:,k), paprs(:,k+1), pplay(:,k), &
	494	zt, ztupnew, zq, zmqc, znebprecipclr, znebprecipcld, &
	495	zqvapclr, zqupnew, &
	496	zrfl, zrflclr, zrflcld, &
	497	zifl, ziflclr, ziflcld, &
	498	dqreva(:,k), dqssub(:,k) &
	499	)
[4803]	500
	501	!================================================================
	502	ELSE
	503
[5408]	504	CALL histprecip_precld(klon, dtime, iftop, paprs(:,k), paprs(:,k+1), pplay(:,k), &
[5411]	505	zt, ztupnew, zq, zmqc, zneb, znebprecip, znebprecipclr, &
[5408]	506	zrfl, zrflclr, zrflcld, &
	507	zifl, ziflclr, ziflcld, &
	508	dqreva(:,k), dqssub(:,k) &
	509	)
[3999]	510
[4803]	511	ENDIF ! (ok_poprecip)
[3999]	512
	513	! Calculation of qsat, L/Cp*dqsat/dT and ncoreczq counter
	514	!-------------------------------------------------------
[4226]	515
[4072]	516	qtot(:)=zq(:)+zmqc(:)
[5383]	517	CALL calc_qsat_ecmwf(klon,zt,qtot,pplay(:,k),RTT,0,.false.,zqs,zdqs)
[4072]	518	DO i = 1, klon
[3999]	519	zdelta = MAX(0.,SIGN(1.,RTT-zt(i)))
[4059]	520	zdqsdT_raw(i) = zdqs(i)RCPD(1.0+RVTMP2zq(i)) / (RLVTT(1.-zdelta) + RLSTT*zdelta)
[3999]	521	IF (zq(i) .LT. 1.e-15) THEN
	522	ncoreczq=ncoreczq+1
	523	zq(i)=1.e-15
	524	ENDIF
[4392]	525	! c_iso: do something similar for isotopes
[3999]	526
[4072]	527	ENDDO
[3999]	528
	529	! --------------------------------------------------------------------
[5408]	530	! P2> Cloud formation
[3999]	531	!---------------------------------------------------------------------
	532	!
	533	! Unlike fisrtilp, we always assume a 'fractional cloud' approach
	534	! i.e. clouds occupy only a fraction of the mesh (the subgrid distribution
	535	! is prescribed and depends on large scale variables and boundary layer
	536	! properties)
	537	! The decrease in condensed part due tu latent heating is taken into
	538	! account
	539	! -------------------------------------------------------------------
	540
[5408]	541	! P2.1> With the PDFs (log-normal, bigaussian)
[4424]	542	! cloud properties calculation with the initial values of t and q
[3999]	543	! ----------------------------------------------------------------
	544
	545	! initialise gammasat and qincloud_mpc
	546	gammasat(:)=1.
	547	qincloud_mpc(:)=0.
	548
	549	IF (iflag_cld_th.GE.5) THEN
[4910]	550	! Cloud cover and content in meshes affected by shallow convection,
	551	! are retrieved from a bi-gaussian distribution of the saturation deficit
	552	! following Jam et al. 2013
[3999]	553
[4910]	554	IF (iflag_cloudth_vert.LE.2) THEN
	555	! Old version of Arnaud Jam
[3999]	556
[4910]	557	CALL cloudth(klon,klev,k,tv, &
	558	zq,qta,fraca, &
	559	qcloud,ctot,pspsk,paprs,pplay,tla,thl, &
[4654]	560	ratqs,zqs,temp, &
[4651]	561	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
[3999]	562
[4651]	563
[3999]	564	ELSEIF (iflag_cloudth_vert.GE.3 .AND. iflag_cloudth_vert.LE.5) THEN
[4910]	565	! Default version of Arnaud Jam
	566
	567	CALL cloudth_v3(klon,klev,k,tv, &
	568	zq,qta,fraca, &
	569	qcloud,ctot,ctot_vol,pspsk,paprs,pplay,tla,thl, &
[5208]	570	ratqs,sigma_qtherm,zqs,temp, &
[4651]	571	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
[3999]	572
	573
	574	ELSEIF (iflag_cloudth_vert.EQ.6) THEN
[4910]	575	! Jean Jouhaud's version, with specific separation between surface and volume
	576	! cloud fraction Decembre 2018
[3999]	577
[4910]	578	CALL cloudth_v6(klon,klev,k,tv, &
	579	zq,qta,fraca, &
	580	qcloud,ctot,ctot_vol,pspsk,paprs,pplay,tla,thl, &
[4654]	581	ratqs,zqs,temp, &
[4651]	582	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
[3999]	583
[4910]	584	ELSEIF (iflag_cloudth_vert .EQ. 7) THEN
	585	! Updated version of Arnaud Jam (correction by E. Vignon) + adapted treatment
[5007]	586	! for boundary-layer mixed phase clouds
[4910]	587	CALL cloudth_mpc(klon,klev,k,mpc_bl_points,zt,zq,qta(:,k),fraca(:,k), &
	588	pspsk(:,k),paprs(:,k+1),paprs(:,k),pplay(:,k), tla(:,k), &
	589	ratqs(:,k),qcloud,qincloud_mpc,zfice_th,ctot(:,k),ctot_vol(:,k), &
	590	cloudth_sth(:,k),cloudth_senv(:,k),cloudth_sigmath(:,k),cloudth_sigmaenv(:,k))
	591
[3999]	592	ENDIF
	593
	594
	595	DO i=1,klon
	596	rneb(i,k)=ctot(i,k)
	597	rneblsvol(i,k)=ctot_vol(i,k)
	598	zqn(i)=qcloud(i)
[5204]	599	!--AB grid-mean vapor in the cloud - we assume saturation adjustment
	600	qvc(i) = rneb(i,k) * zqs(i)
[3999]	601	ENDDO
	602
	603	ENDIF
	604
	605	IF (iflag_cld_th .LE. 4) THEN
	606
	607	! lognormal
[5007]	608	lognormale(:) = .TRUE.
[3999]	609
	610	ELSEIF (iflag_cld_th .GE. 6) THEN
	611
	612	! lognormal distribution when no thermals
[5007]	613	lognormale(:) = fraca(:,k) < min_frac_th_cld
[3999]	614
	615	ELSE
[4226]	616	! When iflag_cld_th=5, we always assume
[3999]	617	! bi-gaussian distribution
[5007]	618	lognormale(:) = .FALSE.
[3999]	619
	620	ENDIF
	621
	622	DT(:) = 0.
	623	n_i(:)=0
	624	Tbef(:)=zt(:)
	625	qlbef(:)=0.
	626
	627	! Treatment of non-boundary layer clouds (lognormale)
[5383]	628	! We iterate here to take into account the change in qsat(T) and ice fraction
	629	! during the condensation process
	630	! the increment in temperature is calculated using the first principle of
	631	! thermodynamics (enthalpy conservation equation in a mesh composed of a cloud fraction
	632	! and a clear sky fraction)
	633	! note that we assume that the vapor in the cloud is at saturation for this calculation
[4226]	634
[3999]	635	DO iter=1,iflag_fisrtilp_qsat+1
[4226]	636
[5204]	637	keepgoing(:) = .FALSE.
	638
[3999]	639	DO i=1,klon
	640
[4424]	641	! keepgoing = .true. while convergence is not satisfied
[4226]	642
[5204]	643	IF (((ABS(DT(i)).GT.DDT0) .OR. (n_i(i) .EQ. 0)) .AND. lognormale(i)) THEN
[4226]	644
[3999]	645	! if not convergence:
[5204]	646	! we calculate a new iteration
	647	keepgoing(i) = .TRUE.
[3999]	648
	649	! P2.2.1> cloud fraction and condensed water mass calculation
	650	! Calculated variables:
	651	! rneb : cloud fraction
	652	! zqn : total water within the cloud
	653	! zcond: mean condensed water within the mesh
	654	! rhcl: clear-sky relative humidity
	655	!---------------------------------------------------------------
	656
[4424]	657	! new temperature that only serves in the iteration process:
[3999]	658	Tbef(i)=Tbef(i)+DT(i)
	659
	660	! Rneb, qzn and zcond for lognormal PDFs
[4072]	661	qtot(i)=zq(i)+zmqc(i)
[4226]	662
[4072]	663	ENDIF
[3999]	664
[4072]	665	ENDDO
	666
[4380]	667	! Calculation of saturation specific humidity and ice fraction
[5383]	668	CALL calc_qsat_ecmwf(klon,Tbef,qtot,pplay(:,k),RTT,0,.false.,zqs,zdqs)
	669	CALL calc_gammasat(klon,Tbef,qtot,pplay(:,k),gammasat,dgammasatdt)
[4072]	670	! saturation may occur at a humidity different from qsat (gamma qsat), so gamma correction for dqs
	671	zdqs(:) = gammasat(:)zdqs(:)+zqs(:)dgammasatdt(:)
[4562]	672	! cloud phase determination
	673	IF (iflag_t_glace.GE.4) THEN
	674	! For iflag_t_glace GE 4 the phase partition function dependends on temperature AND distance to cloud top
[5007]	675	CALL distance_to_cloud_top(klon,klev,k,temp,pplay,paprs,rneb,zdistcltop,ztemp_cltop)
[4562]	676	ENDIF
[4072]	677
[5383]	678	CALL icefrac_lscp(klon, zt, iflag_ice_thermo, zdistcltop,ztemp_cltop,zfice,dzfice)
[5007]	679
[5204]	680	!--AB Activates a condensation scheme that allows for
	681	!--ice supersaturation and contrails evolution from aviation
	682	IF (ok_ice_supersat) THEN
	683
	684	!--Calculate the shear value (input for condensation and ice supersat)
	685	DO i = 1, klon
	686	!--Cell thickness [m]
	687	delta_z = ( paprs(i,k) - paprs(i,k+1) ) / RG / pplay(i,k) * Tbef(i) * RD
	688	IF ( iftop ) THEN
	689	! top
	690	shear(i) = SQRT( ( (u_seri(i,k) - u_seri(i,k-1)) / delta_z )**2. &
	691	+ ( (v_seri(i,k) - v_seri(i,k-1)) / delta_z )**2. )
	692	ELSEIF ( k .EQ. 1 ) THEN
	693	! surface
	694	shear(i) = SQRT( ( (u_seri(i,k+1) - u_seri(i,k)) / delta_z )**2. &
	695	+ ( (v_seri(i,k+1) - v_seri(i,k)) / delta_z )**2. )
	696	ELSE
	697	! other layers
	698	shear(i) = SQRT( ( ( (u_seri(i,k+1) + u_seri(i,k)) / 2. &
	699	- (u_seri(i,k) + u_seri(i,k-1)) / 2. ) / delta_z )**2. &
	700	+ ( ( (v_seri(i,k+1) + v_seri(i,k)) / 2. &
	701	- (v_seri(i,k) + v_seri(i,k-1)) / 2. ) / delta_z )**2. )
	702	ENDIF
	703	ENDDO
	704
	705	!---------------------------------------------
	706	!-- CONDENSATION AND ICE SUPERSATURATION --
	707	!---------------------------------------------
	708
	709	CALL condensation_ice_supersat( &
	710	klon, dtime, missing_val, &
	711	pplay(:,k), paprs(:,k), paprs(:,k+1), &
[5396]	712	cf_seri(:,k), rvc_seri(:,k), ql_seri(:,k), qi_seri(:,k), &
[5406]	713	shear, tke_dissip(:,k), cell_area, &
	714	Tbef, zq, zqs, gammasat, ratqs(:,k), keepgoing, &
	715	rneb(:,k), zqn, qvc, issrfra(:,k), qissr(:,k), &
[5204]	716	dcf_sub(:,k), dcf_con(:,k), dcf_mix(:,k), &
	717	dqi_adj(:,k), dqi_sub(:,k), dqi_con(:,k), dqi_mix(:,k), &
	718	dqvc_adj(:,k), dqvc_sub(:,k), dqvc_con(:,k), dqvc_mix(:,k), &
	719	Tcontr(:,k), qcontr(:,k), qcontr2(:,k), fcontrN(:,k), fcontrP(:,k), &
	720	flight_dist(:,k), flight_h2o(:,k), &
	721	dcf_avi(:,k), dqi_avi(:,k), dqvc_avi(:,k))
	722
	723
[5211]	724	ELSE
	725	!--generalised lognormal condensation scheme (Bony and Emanuel 2001)
	726
[5241]	727	CALL condensation_lognormal( &
	728	klon, Tbef, zq, zqs, gammasat, ratqs(:,k), &
	729	keepgoing, rneb(:,k), zqn, qvc)
[5204]	730
	731
	732	ENDIF ! .NOT. ok_ice_supersat
[4226]	733
[5204]	734	DO i=1,klon
	735	IF (keepgoing(i)) THEN
[3999]	736
	737	! If vertical heterogeneity, change fraction by volume as well
	738	IF (iflag_cloudth_vert.GE.3) THEN
	739	ctot_vol(i,k)=rneb(i,k)
	740	rneblsvol(i,k)=ctot_vol(i,k)
	741	ENDIF
	742
	743
[4072]	744	! P2.2.2> Approximative calculation of temperature variation DT
	745	! due to condensation.
	746	! Calculated variables:
	747	! dT : temperature change due to condensation
	748	!---------------------------------------------------------------
[3999]	749
	750
	751	IF (zfice(i).LT.1) THEN
	752	cste=RLVTT
	753	ELSE
	754	cste=RLSTT
	755	ENDIF
[5007]	756
	757	! LEA_R : check formule
[5204]	758	IF ( ok_unadjusted_clouds ) THEN
	759	!--AB We relax the saturation adjustment assumption
	760	!-- qvc (grid-mean vapor in cloud) is calculated by the condensation scheme
	761	IF ( rneb(i,k) .GT. eps ) THEN
	762	qlbef(i) = MAX(0., zqn(i) - qvc(i) / rneb(i,k))
	763	ELSE
	764	qlbef(i) = 0.
	765	ENDIF
	766	ELSE
	767	qlbef(i)=max(0.,zqn(i)-zqs(i))
	768	ENDIF
	769
[3999]	770	num = -Tbef(i)+zt(i)+rneb(i,k)((1-zfice(i))RLVTT &
[4226]	771	+zfice(i)RLSTT)/RCPD/(1.0+RVTMP2(zq(i)+zmqc(i)))*qlbef(i)
[3999]	772	denom = 1.+rneb(i,k)((1-zfice(i))RLVTT+zfice(i)RLSTT)/cstezdqs(i) &
	773	-(RLSTT-RLVTT)/RCPD/(1.0+RVTMP2(zq(i)+zmqc(i)))rneb(i,k) &
[4226]	774	qlbef(i)dzfice(i)
[4424]	775	! here we update a provisory temperature variable that only serves in the iteration
	776	! process
[3999]	777	DT(i)=num/denom
	778	n_i(i)=n_i(i)+1
	779
[4424]	780	ENDIF ! end keepgoing
[3999]	781
	782	ENDDO ! end loop on i
	783
	784	ENDDO ! iter=1,iflag_fisrtilp_qsat+1
	785
[5408]	786	! P2.2> Final quantities calculation
[3999]	787	! Calculated variables:
	788	! rneb : cloud fraction
	789	! zcond: mean condensed water in the mesh
	790	! zqn : mean water vapor in the mesh
[4562]	791	! zfice: ice fraction in clouds
[3999]	792	! zt : temperature
	793	! rhcl : clear-sky relative humidity
	794	! ----------------------------------------------------------------
	795
	796
[4562]	797	! For iflag_t_glace GE 4 the phase partition function dependends on temperature AND distance to cloud top
	798	IF (iflag_t_glace.GE.4) THEN
[5007]	799	CALL distance_to_cloud_top(klon,klev,k,temp,pplay,paprs,rneb,zdistcltop,ztemp_cltop)
	800	distcltop(:,k)=zdistcltop(:)
	801	temp_cltop(:,k)=ztemp_cltop(:)
	802	ENDIF
[3999]	803
[5007]	804	! Partition function depending on temperature
[5204]	805	CALL icefrac_lscp(klon, zt, iflag_ice_thermo, zdistcltop, ztemp_cltop, zfice, dzfice)
[4562]	806
[5007]	807	! Partition function depending on tke for non shallow-convective clouds
	808	IF (iflag_icefrac .GE. 1) THEN
[5383]	809	CALL icefrac_lscp_turb(klon, dtime, Tbef, pplay(:,k), paprs(:,k), paprs(:,k+1), omega(:,k), qice_ini, ziflcld, zqn, &
[5007]	810	rneb(:,k), tke(:,k), tke_dissip(:,k), zqliq, zqvapcl, zqice, zfice_turb, dzfice_turb, cldfraliq(:,k),sigma2_icefracturb(:,k), mean_icefracturb(:,k))
	811	ENDIF
	812
[4562]	813	! Water vapor update, Phase determination and subsequent latent heat exchange
[3999]	814	DO i=1, klon
[5007]	815	! Overwrite phase partitioning in boundary layer mixed phase clouds when the
	816	! iflag_cloudth_vert=7 and specific param is activated
[3999]	817	IF (mpc_bl_points(i,k) .GT. 0) THEN
	818	zcond(i) = MAX(0.0,qincloud_mpc(i))*rneb(i,k)
	819	! following line is very strange and probably wrong
	820	rhcl(i,k)= (zqs(i)+zq(i))/2./zqs(i)
	821	! water vapor update and partition function if thermals
	822	zq(i) = zq(i) - zcond(i)
[4910]	823	zfice(i)=zfice_th(i)
[3999]	824	ELSE
	825	! Checks on rneb, rhcl and zqn
	826	IF (rneb(i,k) .LE. 0.0) THEN
	827	zqn(i) = 0.0
	828	rneb(i,k) = 0.0
	829	zcond(i) = 0.0
	830	rhcl(i,k)=zq(i)/zqs(i)
	831	ELSE IF (rneb(i,k) .GE. 1.0) THEN
	832	zqn(i) = zq(i)
	833	rneb(i,k) = 1.0
[5204]	834	IF ( ok_unadjusted_clouds ) THEN
	835	!--AB We relax the saturation adjustment assumption
	836	!-- qvc (grid-mean vapor in cloud) is calculated by the condensation scheme
	837	zcond(i) = MAX(0., zqn(i) - qvc(i))
	838	ELSE
	839	zcond(i) = MAX(0.0,zqn(i)-zqs(i))
	840	ENDIF
[3999]	841	rhcl(i,k)=1.0
	842	ELSE
[5204]	843	IF ( ok_unadjusted_clouds ) THEN
	844	!--AB We relax the saturation adjustment assumption
	845	!-- qvc (grid-mean vapor in cloud) is calculated by the condensation scheme
	846	zcond(i) = MAX(0., zqn(i) * rneb(i,k) - qvc(i))
	847	ELSE
	848	zcond(i) = MAX(0.0,zqn(i)-zqs(i))*rneb(i,k)
	849	ENDIF
[3999]	850	! following line is very strange and probably wrong:
	851	rhcl(i,k)=(zqs(i)+zq(i))/2./zqs(i)
[5007]	852	! Overwrite partitioning for non shallow-convective clouds if iflag_icefrac>1 (icefrac turb param)
	853	IF (iflag_icefrac .GE. 1) THEN
	854	IF (lognormale(i)) THEN
	855	zcond(i) = zqliq(i) + zqice(i)
	856	zfice(i)=zfice_turb(i)
	857	rhcl(i,k) = zqvapcl(i) * rneb(i,k) + (zq(i) - zqn(i)) * (1.-rneb(i,k))
	858	ENDIF
	859	ENDIF
[3999]	860	ENDIF
	861
[4226]	862	! water vapor update
	863	zq(i) = zq(i) - zcond(i)
[3999]	864
	865	ENDIF
	866
[4392]	867	! c_iso : routine that computes in-cloud supersaturation
	868	! c_iso condensation of isotopes (zcond, zsursat, zfice, zq in input)
	869
[3999]	870	! temperature update due to phase change
	871	zt(i) = zt(i) + (1.-zfice(i))*zcond(i) &
	872	& * RLVTT/RCPD/(1.0+RVTMP2*(zq(i)+zmqc(i)+zcond(i))) &
	873	+zfice(i)zcond(i) RLSTT/RCPD/(1.0+RVTMP2*(zq(i)+zmqc(i)+zcond(i)))
	874	ENDDO
	875
	876	! If vertical heterogeneity, change volume fraction
	877	IF (iflag_cloudth_vert .GE. 3) THEN
	878	ctot_vol(1:klon,k)=min(max(ctot_vol(1:klon,k),0.),1.)
	879	rneblsvol(1:klon,k)=ctot_vol(1:klon,k)
	880	ENDIF
	881
[5204]	882
[3999]	883	! ----------------------------------------------------------------
[5408]	884	! P3> Precipitation processes, after cloud formation
	885	! - precipitation formation, melting/freezing
[3999]	886	! ----------------------------------------------------------------
[4226]	887
[5413]	888	! Initiate the quantity of liquid and solid condensates
	889	! Note that in the following, zcond is the total amount of condensates
	890	! including newly formed precipitations (i.e., condensates formed by the
	891	! condensation process), while zoliq is the total amount of condensates in
	892	! the cloud (i.e., on which precipitation processes have applied)
	893	DO i = 1, klon
	894	zoliq(i) = zcond(i)
	895	zoliql(i) = zcond(i) * ( 1. - zfice(i) )
	896	zoliqi(i) = zcond(i) * zfice(i)
	897	! c_iso : initialisation of zoliq* also for isotopes
	898	ENDDO
	899
[4803]	900	!================================================================
[5408]	901	! Flag for the new and more microphysical treatment of precipitation from Atelier Nuage (R)
[4803]	902	IF (ok_poprecip) THEN
	903
	904	CALL poprecip_postcld(klon, dtime, paprs(:,k), paprs(:,k+1), pplay(:,k), &
	905	ctot_vol(:,k), ptconv(:,k), &
	906	zt, zq, zoliql, zoliqi, zfice, &
	907	rneb(:,k), znebprecipclr, znebprecipcld, &
	908	zrfl, zrflclr, zrflcld, &
	909	zifl, ziflclr, ziflcld, &
[4830]	910	qraindiag(:,k), qsnowdiag(:,k), dqrauto(:,k), &
[4819]	911	dqrcol(:,k), dqrmelt(:,k), dqrfreez(:,k), &
	912	dqsauto(:,k), dqsagg(:,k), dqsrim(:,k), &
	913	dqsmelt(:,k), dqsfreez(:,k) &
[4803]	914	)
[5419]	915	DO i = 1, klon
	916	zoliq(i) = zoliql(i) + zoliqi(i)
	917	ENDDO
[4803]	918
	919	!================================================================
	920	ELSE
	921
[5413]	922	CALL histprecip_postcld(klon, dtime, iftop, paprs(:,k), paprs(:,k+1), pplay(:,k), &
	923	ctot_vol(:,k), ptconv(:,k), zdqsdT_raw, &
	924	zt, zq, zoliq, zoliql, zoliqi, zcond, zfice, zmqc, &
	925	rneb(:,k), znebprecipclr, znebprecipcld, &
	926	zneb, tot_zneb, zrho_up, zvelo_up, &
	927	zrfl, zrflclr, zrflcld, zifl, ziflclr, ziflcld, &
	928	zradocond, zradoice, dqrauto(:,k), dqsauto(:,k) &
	929	)
[3999]	930
[4803]	931	ENDIF ! ok_poprecip
	932
[5408]	933	! End of precipitation processes after cloud formation
	934	! ----------------------------------------------------
[3999]	935
[5406]	936	!----------------------------------------------------------------------
[5408]	937	! P4> Calculation of cloud condensates amount seen by radiative scheme
[5406]	938	!----------------------------------------------------------------------
[4803]	939
[5413]	940	DO i=1,klon
[3999]	941
[5413]	942	IF (ok_poprecip) THEN
	943	IF (ok_radocond_snow) THEN
	944	radocond(i,k) = zoliq(i)
	945	zradoice(i) = zoliqi(i) + qsnowdiag(i,k)
	946	ELSE
	947	radocond(i,k) = zoliq(i)
	948	zradoice(i) = zoliqi(i)
	949	ENDIF
	950	ELSE
	951	radocond(i,k) = zradocond(i)
	952	ENDIF
[4114]	953
[5413]	954	! calculate the percentage of ice in "radocond" so cloud+precip seen
	955	! by the radiation scheme
	956	IF (radocond(i,k) .GT. 0.) THEN
	957	radicefrac(i,k)=MIN(MAX(zradoice(i)/radocond(i,k),0.),1.)
	958	ENDIF
[4114]	959	ENDDO
	960
[3999]	961	! ----------------------------------------------------------------
[5408]	962	! P5> Wet scavenging
[3999]	963	! ----------------------------------------------------------------
	964
	965	!Scavenging through nucleation in the layer
	966
	967	DO i = 1,klon
	968
	969	IF(zcond(i).GT.zoliq(i)+1.e-10) THEN
	970	beta(i,k) = (zcond(i)-zoliq(i))/zcond(i)/dtime
	971	ELSE
	972	beta(i,k) = 0.
	973	ENDIF
	974
[4059]	975	zprec_cond(i) = MAX(zcond(i)-zoliq(i),0.0)*(paprs(i,k)-paprs(i,k+1))/RG
[3999]	976
	977	IF (rneb(i,k).GT.0.0.AND.zprec_cond(i).GT.0.) THEN
	978
[4654]	979	IF (temp(i,k) .GE. t_glace_min) THEN
[3999]	980	zalpha_tr = a_tr_sca(3)
	981	ELSE
	982	zalpha_tr = a_tr_sca(4)
	983	ENDIF
	984
	985	zfrac_lessi = 1. - EXP(zalpha_tr*zprec_cond(i)/zneb(i))
	986	frac_nucl(i,k)= 1.-zneb(i)*zfrac_lessi
[4226]	987
[3999]	988	! Nucleation with a factor of -1 instead of -0.5
	989	zfrac_lessi = 1. - EXP(-zprec_cond(i)/zneb(i))
	990
	991	ENDIF
	992
[4226]	993	ENDDO
	994
[3999]	995	! Scavenging through impaction in the underlying layer
	996
	997	DO kk = k-1, 1, -1
	998
	999	DO i = 1, klon
	1000
	1001	IF (rneb(i,k).GT.0.0.AND.zprec_cond(i).GT.0.) THEN
	1002
[4654]	1003	IF (temp(i,kk) .GE. t_glace_min) THEN
[3999]	1004	zalpha_tr = a_tr_sca(1)
	1005	ELSE
	1006	zalpha_tr = a_tr_sca(2)
	1007	ENDIF
	1008
	1009	zfrac_lessi = 1. - EXP(zalpha_tr*zprec_cond(i)/zneb(i))
	1010	frac_impa(i,kk)= 1.-zneb(i)*zfrac_lessi
	1011
	1012	ENDIF
	1013
	1014	ENDDO
	1015
	1016	ENDDO
[5406]	1017
	1018	!------------------------------------------------------------
[5408]	1019	! P6 > write diagnostics and outputs
[5406]	1020	!------------------------------------------------------------
	1021
	1022	!--AB Write diagnostics and tracers for ice supersaturation
	1023	IF ( ok_ice_supersat ) THEN
	1024	CALL calc_qsat_ecmwf(klon,zt,qzero,pplay(:,k),RTT,1,.false.,qsatl(:,k),zdqs)
	1025	CALL calc_qsat_ecmwf(klon,zt,qzero,pplay(:,k),RTT,2,.false.,qsati(:,k),zdqs)
[4226]	1026
[5406]	1027	DO i = 1, klon
	1028
	1029	IF ( zoliq(i) .LE. 0. ) THEN
	1030	!--If everything was precipitated, the remaining empty cloud is dissipated
	1031	!--and everything is transfered to the subsaturated clear sky region
	1032	rneb(i,k) = 0.
	1033	qvc(i) = 0.
	1034	ENDIF
	1035
	1036	cf_seri(i,k) = rneb(i,k)
	1037
	1038	IF ( .NOT. ok_unadjusted_clouds ) THEN
	1039	qvc(i) = zqs(i) * rneb(i,k)
	1040	ENDIF
	1041	IF ( zq(i) .GT. min_qParent ) THEN
	1042	rvc_seri(i,k) = qvc(i) / zq(i)
	1043	ELSE
	1044	rvc_seri(i,k) = min_ratio
	1045	ENDIF
	1046	!--The MIN barrier is NEEDED because of:
	1047	!-- 1) very rare pathological cases of the lsc scheme (rvc = 1. + 1e-16 sometimes)
	1048	!-- 2) the thermal scheme does NOT guarantee that qvc <= qvap (or even qincld <= qtot)
	1049	!--The MAX barrier is a safeguard that should not be activated
	1050	rvc_seri(i,k) = MIN(MAX(rvc_seri(i,k), 0.), 1.)
	1051
	1052	!--Diagnostics
	1053	gamma_cond(i,k) = gammasat(i)
	1054	subfra(i,k) = 1. - cf_seri(i,k) - issrfra(i,k)
	1055	qsub(i,k) = zq(i) - qvc(i) - qissr(i,k)
[5412]	1056	qcld(i,k) = qvc(i) + zoliq(i)
[5406]	1057	ENDDO
	1058	ENDIF
	1059
[4803]	1060	! Outputs:
	1061	!-------------------------------
	1062	! Precipitation fluxes at layer interfaces
	1063	! + precipitation fractions +
	1064	! temperature and water species tendencies
	1065	DO i = 1, klon
	1066	psfl(i,k)=zifl(i)
	1067	prfl(i,k)=zrfl(i)
	1068	pfraclr(i,k)=znebprecipclr(i)
	1069	pfracld(i,k)=znebprecipcld(i)
	1070	d_q(i,k) = zq(i) - qt(i,k)
	1071	d_t(i,k) = zt(i) - temp(i,k)
[5412]	1072
	1073	IF (ok_bug_phase_lscp) THEN
	1074	d_ql(i,k) = (1-zfice(i))*zoliq(i)
	1075	d_qi(i,k) = zfice(i)*zoliq(i)
	1076	ELSE
	1077	d_ql(i,k) = zoliql(i)
	1078	d_qi(i,k) = zoliqi(i)
	1079	ENDIF
	1080
[4803]	1081	ENDDO
	1082
	1083
[5413]	1084	ENDDO ! loop on k from top to bottom
[4059]	1085
[3999]	1086
	1087	! Rain or snow at the surface (depending on the first layer temperature)
	1088	DO i = 1, klon
	1089	snow(i) = zifl(i)
	1090	rain(i) = zrfl(i)
[4392]	1091	! c_iso final output
[3999]	1092	ENDDO
	1093
	1094	IF (ncoreczq>0) THEN
	1095	WRITE(lunout,*)'WARNING : ZQ in LSCP ',ncoreczq,' val < 1.e-15.'
	1096	ENDIF
	1097
[4654]	1098
	1099	RETURN
	1100
[4380]	1101	END SUBROUTINE lscp
[3999]	1102	!+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	1103
[4664]	1104	END MODULE lmdz_lscp

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