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lmdz_lscp.f90 @ 5452

Last change on this file since 5452 was 5452, checked in by aborella, 3 weeks ago
First implementation of the contrails parameterisation Lacks the emission of H2O + the impact on radiative transfer
File size: 51.3 KB

Rev	Line
[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, &
[5452]	26	rcont_seri, flight_dist, flight_h2o, &
	27	Tcritcont, qcritcont, potcontfraP, potcontfraNP, &
	28	dcf_avi, dqi_avi, dqvc_avi, &
[4803]	29	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv, &
[4830]	30	qraindiag, qsnowdiag, dqreva, dqssub, dqrauto, &
	31	dqrcol, dqrmelt, dqrfreez, dqsauto, dqsagg, dqsrim,&
[4819]	32	dqsmelt, dqsfreez)
[3999]	33
	34	!++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	35	! Authors: Z.X. Li (LMD), J-L Dufresne (LMD), C. Rio (LMD), J-Y Grandpeix (LMD)
	36	! A. JAM (LMD), J-B Madeleine (LMD), E. Vignon (LMD), L. Touzze-Peiffert (LMD)
	37	!--------------------------------------------------------------------------------
	38	! Date: 01/2021
	39	!--------------------------------------------------------------------------------
	40	! Aim: Large Scale Clouds and Precipitation (LSCP)
[4226]	41	!
[3999]	42	! This code is a new version of the fisrtilp.F90 routine, which is itself a
[4072]	43	! merge of 'first' (superrsaturation physics, P. LeVan K. Laval)
[3999]	44	! and 'ilp' (il pleut, L. Li)
	45	!
[4380]	46	! Compared to the original fisrtilp code, lscp
[3999]	47	! -> assumes thermcep = .TRUE. all the time (fisrtilp inconsistent when .FALSE.)
	48	! -> consider always precipitation thermalisation (fl_cor_ebil>0)
	49	! -> option iflag_fisrtilp_qsat<0 no longer possible (qsat does not evolve with T)
	50	! -> option "oldbug" by JYG has been removed
	51	! -> iflag_t_glace >0 always
	52	! -> the 'all or nothing' cloud approach is no longer available (cpartiel=T always)
	53	! -> rectangular distribution from L. Li no longer available
	54	! -> We always account for the Wegener-Findeisen-Bergeron process (iflag_bergeron = 2 in fisrt)
	55	!--------------------------------------------------------------------------------
	56	! References:
	57	!
[4412]	58	! - Bony, S., & Emanuel, K. A. 2001, JAS, doi: 10.1175/1520-0469(2001)058<3158:APOTCA>2.0.CO;2
[3999]	59	! - Hourdin et al. 2013, Clim Dyn, doi:10.1007/s00382-012-1343-y
	60	! - Jam et al. 2013, Boundary-Layer Meteorol, doi:10.1007/s10546-012-9789-3
[4412]	61	! - Jouhaud, et al. 2018. JAMES, doi:10.1029/2018MS001379
[3999]	62	! - Madeleine et al. 2020, JAMES, doi:10.1029/2020MS002046
[4412]	63	! - Touzze-Peifert Ludo, PhD thesis, p117-124
[3999]	64	! -------------------------------------------------------------------------------
	65	! Code structure:
	66	!
[4226]	67	! P0> Thermalization of the precipitation coming from the overlying layer
[3999]	68	! P1> Evaporation of the precipitation (falling from the k+1 level)
	69	! P2> Cloud formation (at the k level)
[4412]	70	! P2.A.1> With the PDFs, calculation of cloud properties using the inital
[3999]	71	! values of T and Q
	72	! P2.A.2> Coupling between condensed water and temperature
	73	! P2.A.3> Calculation of final quantities associated with cloud formation
[4412]	74	! P2.B> Release of Latent heat after cloud formation
[3999]	75	! P3> Autoconversion to precipitation (k-level)
	76	! P4> Wet scavenging
	77	!------------------------------------------------------------------------------
	78	! Some preliminary comments (JBM) :
	79	!
	80	! The cloud water that the radiation scheme sees is not the same that the cloud
	81	! water used in the physics and the dynamics
	82	!
[4412]	83	! During the autoconversion to precipitation (P3 step), radocond (cloud water used
[3999]	84	! by the radiation scheme) is calculated as an average of the water that remains
	85	! in the cloud during the precipitation and not the water remaining at the end
	86	! of the time step. The latter is used in the rest of the physics and advected
	87	! by the dynamics.
	88	!
	89	! In summary:
	90	!
	91	! Radiation:
	92	! xflwc(newmicro)+xfiwc(newmicro) =
[4412]	93	! radocond=lwcon(nc)+iwcon(nc)
[3999]	94	!
	95	! Notetheless, be aware of:
	96	!
[4412]	97	! radocond .NE. ocond(nc)
[3999]	98	! i.e.:
	99	! lwcon(nc)+iwcon(nc) .NE. ocond(nc)
[4412]	100	! but oliq+(ocond-oliq) .EQ. ocond
[3999]	101	! (which is not trivial)
	102	!++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
[4226]	103	!
[4654]	104
	105	! USE de modules contenant des fonctions.
[4651]	106	USE lmdz_cloudth, ONLY : cloudth, cloudth_v3, cloudth_v6, cloudth_mpc
[5007]	107	USE lmdz_lscp_tools, ONLY : calc_qsat_ecmwf, calc_gammasat
[5413]	108	USE lmdz_lscp_tools, ONLY : icefrac_lscp, icefrac_lscp_turb, distance_to_cloud_top
[5241]	109	USE lmdz_lscp_condensation, ONLY : condensation_lognormal, condensation_ice_supersat
[5413]	110	USE lmdz_lscp_precip, ONLY : histprecip_precld, histprecip_postcld
	111	USE lmdz_lscp_precip, ONLY : poprecip_precld, poprecip_postcld
[3999]	112
[4664]	113	! Use du module lmdz_lscp_ini contenant les constantes
[5204]	114	USE lmdz_lscp_ini, ONLY : prt_level, lunout, eps
[5413]	115	USE lmdz_lscp_ini, ONLY : seuil_neb, iflag_evap_prec, DDT0
	116	USE lmdz_lscp_ini, ONLY : ok_radocond_snow, a_tr_sca
	117	USE lmdz_lscp_ini, ONLY : iflag_cloudth_vert, iflag_t_glace, iflag_fisrtilp_qsat
	118	USE lmdz_lscp_ini, ONLY : t_glace_min, min_frac_th_cld
	119	USE lmdz_lscp_ini, ONLY : RCPD, RLSTT, RLVTT, RVTMP2, RTT, RD, RG
[5412]	120	USE lmdz_lscp_ini, ONLY : ok_poprecip, ok_bug_phase_lscp
[5211]	121	USE lmdz_lscp_ini, ONLY : ok_ice_supersat, ok_unadjusted_clouds, iflag_icefrac
[5452]	122	USE lmdz_lscp_ini, ONLY : ok_plane_contrail
[5204]	123
[3999]	124	IMPLICIT NONE
	125
	126	!===============================================================================
[4380]	127	! VARIABLES DECLARATION
[3999]	128	!===============================================================================
	129
	130	! INPUT VARIABLES:
	131	!-----------------
	132
[4380]	133	INTEGER, INTENT(IN) :: klon,klev ! number of horizontal grid points and vertical levels
[3999]	134	REAL, INTENT(IN) :: dtime ! time step [s]
[4380]	135	REAL, INTENT(IN) :: missing_val ! missing value for output
[4059]	136
[3999]	137	REAL, DIMENSION(klon,klev+1), INTENT(IN) :: paprs ! inter-layer pressure [Pa]
	138	REAL, DIMENSION(klon,klev), INTENT(IN) :: pplay ! mid-layer pressure [Pa]
[4654]	139	REAL, DIMENSION(klon,klev), INTENT(IN) :: temp ! temperature (K)
[5383]	140	REAL, DIMENSION(klon,klev), INTENT(IN) :: omega ! vertical velocity [Pa/s]
[4686]	141	REAL, DIMENSION(klon,klev), INTENT(IN) :: qt ! total specific humidity (in vapor phase in input) [kg/kg]
[5396]	142	REAL, DIMENSION(klon,klev), INTENT(IN) :: ql_seri ! liquid specific content [kg/kg]
	143	REAL, DIMENSION(klon,klev), INTENT(IN) :: qi_seri ! ice specific content [kg/kg]
[3999]	144	INTEGER, INTENT(IN) :: iflag_cld_th ! flag that determines the distribution of convective clouds
	145	INTEGER, INTENT(IN) :: iflag_ice_thermo! flag to activate the ice thermodynamics
[4226]	146	! CR: if iflag_ice_thermo=2, only convection is active
[3999]	147	LOGICAL, DIMENSION(klon,klev), INTENT(IN) :: ptconv ! grid points where deep convection scheme is active
	148
	149	!Inputs associated with thermal plumes
[4226]	150
[5007]	151	REAL, DIMENSION(klon,klev), INTENT(IN) :: tv ! virtual potential temperature [K]
	152	REAL, DIMENSION(klon,klev), INTENT(IN) :: qta ! specific humidity within thermals [kg/kg]
	153	REAL, DIMENSION(klon,klev), INTENT(IN) :: fraca ! fraction of thermals within the mesh [-]
	154	REAL, DIMENSION(klon,klev), INTENT(IN) :: pspsk ! exner potential (p/100000)**(R/cp)
	155	REAL, DIMENSION(klon,klev), INTENT(IN) :: tla ! liquid temperature within thermals [K]
[5413]	156	REAL, DIMENSION(klon,klev+1), INTENT(IN) :: tke !--turbulent kinetic energy [m2/s2]
	157	REAL, DIMENSION(klon,klev+1), INTENT(IN) :: tke_dissip !--TKE dissipation [m2/s3]
[3999]	158
	159	! INPUT/OUTPUT variables
	160	!------------------------
[4562]	161
[5208]	162	REAL, DIMENSION(klon,klev), INTENT(INOUT) :: thl ! liquid potential temperature [K]
	163	REAL, DIMENSION(klon,klev), INTENT(INOUT) :: ratqs,sigma_qtherm ! function of pressure that sets the large-scale
[4059]	164
[5208]	165
[5204]	166	! INPUT/OUTPUT condensation and ice supersaturation
	167	!--------------------------------------------------
	168	REAL, DIMENSION(klon,klev), INTENT(INOUT):: cf_seri ! cloud fraction [-]
	169	REAL, DIMENSION(klon,klev), INTENT(INOUT):: rvc_seri ! cloudy water vapor to total water vapor ratio [-]
	170	REAL, DIMENSION(klon,klev), INTENT(IN) :: u_seri ! eastward wind [m/s]
	171	REAL, DIMENSION(klon,klev), INTENT(IN) :: v_seri ! northward wind [m/s]
	172	REAL, DIMENSION(klon), INTENT(IN) :: cell_area ! area of each cell [m2]
[4380]	173
[5204]	174	! INPUT/OUTPUT aviation
	175	!--------------------------------------------------
[5452]	176	REAL, DIMENSION(klon,klev), INTENT(INOUT):: rcont_seri ! ratio of contrails fraction to total cloud fraction [-]
[5204]	177	REAL, DIMENSION(klon,klev), INTENT(IN) :: flight_dist ! Aviation distance flown within the mesh [m/s/mesh]
	178	REAL, DIMENSION(klon,klev), INTENT(IN) :: flight_h2o ! Aviation H2O emitted within the mesh [kg H2O/s/mesh]
[3999]	179
	180	! OUTPUT variables
	181	!-----------------
	182
[5204]	183	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_t ! temperature increment [K]
	184	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_q ! specific humidity increment [kg/kg]
	185	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_ql ! liquid water increment [kg/kg]
	186	REAL, DIMENSION(klon,klev), INTENT(OUT) :: d_qi ! cloud ice mass increment [kg/kg]
	187	REAL, DIMENSION(klon,klev), INTENT(OUT) :: rneb ! cloud fraction [-]
	188	REAL, DIMENSION(klon,klev), INTENT(OUT) :: rneblsvol ! cloud fraction per unit volume [-]
	189	REAL, DIMENSION(klon,klev), INTENT(OUT) :: pfraclr ! precip fraction clear-sky part [-]
	190	REAL, DIMENSION(klon,klev), INTENT(OUT) :: pfracld ! precip fraction cloudy part [-]
[5007]	191	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cldfraliq ! liquid fraction of cloud [-]
	192	REAL, DIMENSION(klon,klev), INTENT(OUT) :: sigma2_icefracturb ! Variance of the diagnostic supersaturation distribution (icefrac_turb) [-]
	193	REAL, DIMENSION(klon,klev), INTENT(OUT) :: mean_icefracturb ! Mean of the diagnostic supersaturation distribution (icefrac_turb) [-]
[5204]	194	REAL, DIMENSION(klon,klev), INTENT(OUT) :: radocond ! condensed water used in the radiation scheme [kg/kg]
	195	REAL, DIMENSION(klon,klev), INTENT(OUT) :: radicefrac ! ice fraction of condensed water for radiation scheme
	196	REAL, DIMENSION(klon,klev), INTENT(OUT) :: rhcl ! clear-sky relative humidity [-]
	197	REAL, DIMENSION(klon), INTENT(OUT) :: rain ! surface large-scale rainfall [kg/s/m2]
	198	REAL, DIMENSION(klon), INTENT(OUT) :: snow ! surface large-scale snowfall [kg/s/m2]
	199	REAL, DIMENSION(klon,klev+1), INTENT(OUT) :: prfl ! large-scale rainfall flux in the column [kg/s/m2]
	200	REAL, DIMENSION(klon,klev+1), INTENT(OUT) :: psfl ! large-scale snowfall flux in the column [kg/s/m2]
	201	REAL, DIMENSION(klon,klev), INTENT(OUT) :: distcltop ! distance to cloud top [m]
	202	REAL, DIMENSION(klon,klev), INTENT(OUT) :: temp_cltop ! temperature of cloud top [K]
	203	REAL, DIMENSION(klon,klev), INTENT(OUT) :: beta ! conversion rate of condensed water
[4686]	204
[5007]	205	! fraction of aerosol scavenging through impaction and nucleation (for on-line)
[3999]	206
[5007]	207	REAL, DIMENSION(klon,klev), INTENT(OUT) :: frac_impa ! scavenging fraction due tu impaction [-]
	208	REAL, DIMENSION(klon,klev), INTENT(OUT) :: frac_nucl ! scavenging fraction due tu nucleation [-]
[3999]	209
[5204]	210	! for condensation and ice supersaturation
[3999]	211
[5204]	212	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsub !--specific total water content in sub-saturated clear sky region [kg/kg]
	213	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qissr !--specific total water content in supersat region [kg/kg]
	214	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qcld !--specific total water content in cloudy region [kg/kg]
	215	REAL, DIMENSION(klon,klev), INTENT(OUT) :: subfra !--mesh fraction of subsaturated clear sky [-]
	216	REAL, DIMENSION(klon,klev), INTENT(OUT) :: issrfra !--mesh fraction of ISSR [-]
	217	REAL, DIMENSION(klon,klev), INTENT(OUT) :: gamma_cond !--coefficient governing the ice nucleation RHi threshold [-]
	218	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_sub !--cloud fraction tendency because of sublimation [s-1]
	219	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_con !--cloud fraction tendency because of condensation [s-1]
	220	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_mix !--cloud fraction tendency because of cloud mixing [s-1]
	221	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_adj !--specific ice content tendency because of temperature adjustment [kg/kg/s]
	222	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_sub !--specific ice content tendency because of sublimation [kg/kg/s]
	223	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_con !--specific ice content tendency because of condensation [kg/kg/s]
	224	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_mix !--specific ice content tendency because of cloud mixing [kg/kg/s]
	225	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_adj !--specific cloud water vapor tendency because of temperature adjustment [kg/kg/s]
	226	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_sub !--specific cloud water vapor tendency because of sublimation [kg/kg/s]
	227	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_con !--specific cloud water vapor tendency because of condensation [kg/kg/s]
	228	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_mix !--specific cloud water vapor tendency because of cloud mixing [kg/kg/s]
	229	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsatl !--saturation specific humidity wrt liquid [kg/kg]
	230	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsati !--saturation specific humidity wrt ice [kg/kg]
	231
	232	! for contrails and aviation
	233
[5452]	234	REAL, DIMENSION(klon,klev), INTENT(OUT) :: Tcritcont ! critical temperature for contrail formation [K]
	235	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qcritcont ! critical specific humidity for contrail formation [kg/kg]
	236	REAL, DIMENSION(klon,klev), INTENT(OUT) :: potcontfraP ! potential persistent contrail fraction [-]
	237	REAL, DIMENSION(klon,klev), INTENT(OUT) :: potcontfraNP ! potential non-persistent contrail fraction [-]
[5204]	238	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dcf_avi !--cloud fraction tendency because of aviation [s-1]
	239	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqi_avi !--specific ice content tendency because of aviation [kg/kg/s]
	240	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqvc_avi !--specific cloud water vapor tendency because of aviation [kg/kg/s]
	241
	242
[4803]	243	! for POPRECIP
[4686]	244
[4830]	245	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qraindiag !--DIAGNOSTIC specific rain content [kg/kg]
	246	REAL, DIMENSION(klon,klev), INTENT(OUT) :: qsnowdiag !--DIAGNOSTIC specific snow content [kg/kg]
[4819]	247	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqreva !--rain tendendy due to evaporation [kg/kg/s]
	248	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqssub !--snow tendency due to sublimation [kg/kg/s]
	249	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrcol !--rain tendendy due to collection by rain of liquid cloud droplets [kg/kg/s]
	250	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsagg !--snow tendency due to collection of lcoud ice by aggregation [kg/kg/s]
	251	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrauto !--rain tendency due to autoconversion of cloud liquid [kg/kg/s]
	252	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsauto !--snow tendency due to autoconversion of cloud ice [kg/kg/s]
	253	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsrim !--snow tendency due to riming [kg/kg/s]
	254	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsmelt !--snow tendency due to melting [kg/kg/s]
	255	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrmelt !--rain tendency due to melting [kg/kg/s]
	256	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqsfreez !--snow tendency due to freezing [kg/kg/s]
	257	REAL, DIMENSION(klon,klev), INTENT(OUT) :: dqrfreez !--rain tendency due to freezing [kg/kg/s]
[4686]	258
[5204]	259	! for thermals
[4803]	260
[5204]	261	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_sth !--mean saturation deficit in thermals
	262	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_senv !--mean saturation deficit in environment
	263	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_sigmath !--std of saturation deficit in thermals
	264	REAL, DIMENSION(klon,klev), INTENT(OUT) :: cloudth_sigmaenv !--std of saturation deficit in environment
	265
	266
[3999]	267	! LOCAL VARIABLES:
	268	!----------------
[5383]	269	REAL,DIMENSION(klon) :: qice_ini
[4654]	270	REAL, DIMENSION(klon,klev) :: ctot
	271	REAL, DIMENSION(klon,klev) :: ctot_vol
[5450]	272	REAL, DIMENSION(klon) :: zqs, zdqs, zqsl, zdqsl, zqsi, zdqsi
[5413]	273	REAL :: zdelta
[4654]	274	REAL, DIMENSION(klon) :: zdqsdT_raw
[5007]	275	REAL, DIMENSION(klon) :: gammasat,dgammasatdt ! coefficient to make cold condensation at the correct RH and derivative wrt T
	276	REAL, DIMENSION(klon) :: Tbef,qlbef,DT ! temperature, humidity and temp. variation during lognormal iteration
[4654]	277	REAL :: num,denom
	278	REAL :: cste
[4910]	279	REAL, DIMENSION(klon) :: zfice_th
[4654]	280	REAL, DIMENSION(klon) :: qcloud, qincloud_mpc
[5413]	281	REAL, DIMENSION(klon) :: zrfl, zifl
[5450]	282	REAL, DIMENSION(klon) :: zoliq, zcond, zq, zqn, zqnl
[4654]	283	REAL, DIMENSION(klon) :: zoliql, zoliqi
	284	REAL, DIMENSION(klon) :: zt
[5450]	285	REAL, DIMENSION(klon) :: zfice,zneb, znebl
[4654]	286	REAL, DIMENSION(klon) :: dzfice
[5007]	287	REAL, DIMENSION(klon) :: zfice_turb, dzfice_turb
[4654]	288	REAL, DIMENSION(klon) :: qtot, qzero
[3999]	289	! Variables precipitation energy conservation
[4654]	290	REAL, DIMENSION(klon) :: zmqc
	291	REAL :: zalpha_tr
	292	REAL :: zfrac_lessi
	293	REAL, DIMENSION(klon) :: zprec_cond
	294	REAL, DIMENSION(klon) :: zlh_solid
[4803]	295	REAL, DIMENSION(klon) :: ztupnew
[4913]	296	REAL, DIMENSION(klon) :: zqvapclr, zqupnew ! for poprecip evap / subl
[4654]	297	REAL, DIMENSION(klon) :: zrflclr, zrflcld
	298	REAL, DIMENSION(klon) :: ziflclr, ziflcld
[5411]	299	REAL, DIMENSION(klon) :: znebprecip, znebprecipclr, znebprecipcld
[5413]	300	REAL, DIMENSION(klon) :: tot_zneb
[4654]	301	REAL :: qlmpc, qimpc, rnebmpc
[5007]	302	REAL, DIMENSION(klon) :: zdistcltop, ztemp_cltop
	303	REAL, DIMENSION(klon) :: zqliq, zqice, zqvapcl ! for icefrac_lscp_turb
[5413]	304
	305	! for quantity of condensates seen by radiation
	306	REAL, DIMENSION(klon) :: zradocond, zradoice
	307	REAL, DIMENSION(klon) :: zrho_up, zvelo_up
[5204]	308
	309	! for condensation and ice supersaturation
[5450]	310	REAL, DIMENSION(klon) :: qvc, qvcl, shear
[5204]	311	REAL :: delta_z
[5452]	312	! for contrails
	313	REAL, DIMENSION(klon) :: contfra
	314	!--Added for ice supersaturation (ok_ice_supersat) and contrails (ok_plane_contrail)
[5204]	315	! Constants used for calculating ratios that are advected (using a parent-child
	316	! formalism). This is not done in the dynamical core because at this moment,
	317	! only isotopes can use this parent-child formalism. Note that the two constants
	318	! are the same as the one use in the dynamical core, being also defined in
	319	! dyn3d_common/infotrac.F90
	320	REAL :: min_qParent, min_ratio
[3999]	321
[5413]	322	INTEGER i, k, kk, iter
[4654]	323	INTEGER, DIMENSION(klon) :: n_i
[4226]	324	INTEGER ncoreczq
[4654]	325	INTEGER, DIMENSION(klon,klev) :: mpc_bl_points
[4803]	326	LOGICAL iftop
[3999]	327
[4654]	328	LOGICAL, DIMENSION(klon) :: lognormale
	329	LOGICAL, DIMENSION(klon) :: keepgoing
[3999]	330
	331	CHARACTER (len = 20) :: modname = 'lscp'
	332	CHARACTER (len = 80) :: abort_message
	333
	334
	335	!===============================================================================
	336	! INITIALISATION
	337	!===============================================================================
	338
[4226]	339	! Few initial checks
[3999]	340
[4654]	341
[3999]	342	IF (iflag_fisrtilp_qsat .LT. 0) THEN
[4226]	343	abort_message = 'lscp cannot be used with iflag_fisrtilp<0'
	344	CALL abort_physic(modname,abort_message,1)
[3999]	345	ENDIF
	346
	347	! Few initialisations
	348
	349	ctot_vol(1:klon,1:klev)=0.0
	350	rneblsvol(1:klon,1:klev)=0.0
[5411]	351	znebprecip(:)=0.0
[4226]	352	znebprecipclr(:)=0.0
	353	znebprecipcld(:)=0.0
[3999]	354	mpc_bl_points(:,:)=0
	355
	356	IF (prt_level>9) WRITE(lunout,*) 'NUAGES4 A. JAM'
	357
	358	! AA for 'safety' reasons
	359	zalpha_tr = 0.
	360	zfrac_lessi = 0.
[4380]	361	beta(:,:)= 0.
[3999]	362
[4380]	363	! Initialisation of variables:
	364
[3999]	365	prfl(:,:) = 0.0
	366	psfl(:,:) = 0.0
	367	d_t(:,:) = 0.0
	368	d_q(:,:) = 0.0
	369	d_ql(:,:) = 0.0
	370	d_qi(:,:) = 0.0
	371	rneb(:,:) = 0.0
[4530]	372	pfraclr(:,:)=0.0
	373	pfracld(:,:)=0.0
[5007]	374	cldfraliq(:,:)=0.
	375	sigma2_icefracturb(:,:)=0.
	376	mean_icefracturb(:,:)=0.
[4412]	377	radocond(:,:) = 0.0
[3999]	378	radicefrac(:,:) = 0.0
[4226]	379	frac_nucl(:,:) = 1.0
	380	frac_impa(:,:) = 1.0
[3999]	381	rain(:) = 0.0
	382	snow(:) = 0.0
[5450]	383	zfice(:)=1.0 ! initialized at 1 as by default we assume mpc to be at ice saturation
[4114]	384	dzfice(:)=0.0
[5007]	385	zfice_turb(:)=0.0
	386	dzfice_turb(:)=0.0
[3999]	387	zrfl(:) = 0.0
	388	zifl(:) = 0.0
	389	zneb(:) = seuil_neb
[4226]	390	zrflclr(:) = 0.0
	391	ziflclr(:) = 0.0
	392	zrflcld(:) = 0.0
	393	ziflcld(:) = 0.0
	394	tot_zneb(:) = 0.0
	395	qzero(:) = 0.0
[5007]	396	zdistcltop(:)=0.0
	397	ztemp_cltop(:) = 0.0
[4803]	398	ztupnew(:)=0.0
[5204]	399
[4654]	400	distcltop(:,:)=0.
	401	temp_cltop(:,:)=0.
[5007]	402
[5204]	403	!--Ice supersaturation
	404	gamma_cond(:,:) = 1.
	405	qissr(:,:) = 0.
	406	issrfra(:,:) = 0.
	407	dcf_sub(:,:) = 0.
	408	dcf_con(:,:) = 0.
	409	dcf_mix(:,:) = 0.
	410	dqi_adj(:,:) = 0.
	411	dqi_sub(:,:) = 0.
	412	dqi_con(:,:) = 0.
	413	dqi_mix(:,:) = 0.
	414	dqvc_adj(:,:) = 0.
	415	dqvc_sub(:,:) = 0.
	416	dqvc_con(:,:) = 0.
	417	dqvc_mix(:,:) = 0.
[5452]	418	Tcritcont(:,:) = missing_val
	419	qcritcont(:,:) = missing_val
	420	potcontfraP(:,:)= missing_val
	421	potcontfraNP(:,:)= missing_val
[5204]	422	dcf_avi(:,:) = 0.
	423	dqi_avi(:,:) = 0.
	424	dqvc_avi(:,:) = 0.
	425	qvc(:) = 0.
	426	shear(:) = 0.
	427	min_qParent = 1.e-30
	428	min_ratio = 1.e-16
	429
[4803]	430	!-- poprecip
[4830]	431	qraindiag(:,:)= 0.
	432	qsnowdiag(:,:)= 0.
[4819]	433	dqreva(:,:) = 0.
	434	dqrauto(:,:) = 0.
	435	dqrmelt(:,:) = 0.
	436	dqrfreez(:,:) = 0.
	437	dqrcol(:,:) = 0.
	438	dqssub(:,:) = 0.
	439	dqsauto(:,:) = 0.
	440	dqsrim(:,:) = 0.
	441	dqsagg(:,:) = 0.
	442	dqsfreez(:,:) = 0.
	443	dqsmelt(:,:) = 0.
[4913]	444	zqupnew(:) = 0.
	445	zqvapclr(:) = 0.
[3999]	446
[4803]	447
	448
[4392]	449	!c_iso: variable initialisation for iso
	450
	451
[3999]	452	!===============================================================================
	453	! BEGINNING OF VERTICAL LOOP FROM TOP TO BOTTOM
	454	!===============================================================================
	455
	456	ncoreczq=0
	457
	458	DO k = klev, 1, -1
	459
[5408]	460	qice_ini = qi_seri(:,k)
	461
[4803]	462	IF (k.LE.klev-1) THEN
	463	iftop=.false.
	464	ELSE
	465	iftop=.true.
	466	ENDIF
	467
[3999]	468	! Initialisation temperature and specific humidity
[5007]	469	! temp(klon,klev) is not modified by the routine, instead all changes in temperature are made on zt
	470	! at the end of the klon loop, a temperature incremtent d_t due to all processes
	471	! (thermalization, evap/sub incoming precip, cloud formation, precipitation processes) is calculated
	472	! d_t = temperature tendency due to lscp
	473	! The temperature of the overlying layer is updated here because needed for thermalization
[3999]	474	DO i = 1, klon
[4654]	475	zt(i)=temp(i,k)
[4686]	476	zq(i)=qt(i,k)
[4803]	477	IF (.not. iftop) THEN
[4913]	478	ztupnew(i) = temp(i,k+1) + d_t(i,k+1)
	479	zqupnew(i) = qt(i,k+1) + d_q(i,k+1) + d_ql(i,k+1) + d_qi(i,k+1)
	480	!--zqs(i) is the saturation specific humidity in the layer above
	481	zqvapclr(i) = MAX(0., qt(i,k+1) + d_q(i,k+1) - rneb(i,k+1) * zqs(i))
[4803]	482	ENDIF
[4392]	483	!c_iso init of iso
[3999]	484	ENDDO
[5408]	485
	486	! --------------------------------------------------------------------
	487	! P1> Precipitation processes, before cloud formation:
	488	! Thermalization of precipitation falling from the overlying layer AND
	489	! Precipitation evaporation/sublimation/melting
	490	!---------------------------------------------------------------------
[4803]	491
	492	!================================================================
	493	! Flag for the new and more microphysical treatment of precipitation from Atelier Nuage (R)
[5431]	494	IF ( ok_poprecip ) THEN
[4803]	495
[5408]	496	CALL poprecip_precld(klon, dtime, iftop, paprs(:,k), paprs(:,k+1), pplay(:,k), &
	497	zt, ztupnew, zq, zmqc, znebprecipclr, znebprecipcld, &
	498	zqvapclr, zqupnew, &
[5431]	499	cf_seri(:,k), rvc_seri(:,k), ql_seri(:,k), qi_seri(:,k), &
[5408]	500	zrfl, zrflclr, zrflcld, &
	501	zifl, ziflclr, ziflcld, &
	502	dqreva(:,k), dqssub(:,k) &
	503	)
[4803]	504
	505	!================================================================
	506	ELSE
	507
[5408]	508	CALL histprecip_precld(klon, dtime, iftop, paprs(:,k), paprs(:,k+1), pplay(:,k), &
[5411]	509	zt, ztupnew, zq, zmqc, zneb, znebprecip, znebprecipclr, &
[5408]	510	zrfl, zrflclr, zrflcld, &
	511	zifl, ziflclr, ziflcld, &
	512	dqreva(:,k), dqssub(:,k) &
	513	)
[3999]	514
[4803]	515	ENDIF ! (ok_poprecip)
[3999]	516
	517	! Calculation of qsat, L/Cp*dqsat/dT and ncoreczq counter
	518	!-------------------------------------------------------
[4226]	519
[4072]	520	qtot(:)=zq(:)+zmqc(:)
[5383]	521	CALL calc_qsat_ecmwf(klon,zt,qtot,pplay(:,k),RTT,0,.false.,zqs,zdqs)
[4072]	522	DO i = 1, klon
[3999]	523	zdelta = MAX(0.,SIGN(1.,RTT-zt(i)))
[4059]	524	zdqsdT_raw(i) = zdqs(i)RCPD(1.0+RVTMP2zq(i)) / (RLVTT(1.-zdelta) + RLSTT*zdelta)
[3999]	525	IF (zq(i) .LT. 1.e-15) THEN
	526	ncoreczq=ncoreczq+1
	527	zq(i)=1.e-15
	528	ENDIF
[4392]	529	! c_iso: do something similar for isotopes
[3999]	530
[4072]	531	ENDDO
[3999]	532
	533	! --------------------------------------------------------------------
[5408]	534	! P2> Cloud formation
[3999]	535	!---------------------------------------------------------------------
	536	!
	537	! Unlike fisrtilp, we always assume a 'fractional cloud' approach
	538	! i.e. clouds occupy only a fraction of the mesh (the subgrid distribution
	539	! is prescribed and depends on large scale variables and boundary layer
	540	! properties)
	541	! The decrease in condensed part due tu latent heating is taken into
	542	! account
	543	! -------------------------------------------------------------------
	544
[5408]	545	! P2.1> With the PDFs (log-normal, bigaussian)
[4424]	546	! cloud properties calculation with the initial values of t and q
[3999]	547	! ----------------------------------------------------------------
	548
	549	! initialise gammasat and qincloud_mpc
	550	gammasat(:)=1.
	551	qincloud_mpc(:)=0.
	552
	553	IF (iflag_cld_th.GE.5) THEN
[4910]	554	! Cloud cover and content in meshes affected by shallow convection,
	555	! are retrieved from a bi-gaussian distribution of the saturation deficit
	556	! following Jam et al. 2013
[3999]	557
[4910]	558	IF (iflag_cloudth_vert.LE.2) THEN
	559	! Old version of Arnaud Jam
[3999]	560
[4910]	561	CALL cloudth(klon,klev,k,tv, &
	562	zq,qta,fraca, &
	563	qcloud,ctot,pspsk,paprs,pplay,tla,thl, &
[4654]	564	ratqs,zqs,temp, &
[4651]	565	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
[3999]	566
[4651]	567
[3999]	568	ELSEIF (iflag_cloudth_vert.GE.3 .AND. iflag_cloudth_vert.LE.5) THEN
[4910]	569	! Default version of Arnaud Jam
	570
	571	CALL cloudth_v3(klon,klev,k,tv, &
	572	zq,qta,fraca, &
	573	qcloud,ctot,ctot_vol,pspsk,paprs,pplay,tla,thl, &
[5208]	574	ratqs,sigma_qtherm,zqs,temp, &
[4651]	575	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
[3999]	576
	577
	578	ELSEIF (iflag_cloudth_vert.EQ.6) THEN
[4910]	579	! Jean Jouhaud's version, with specific separation between surface and volume
	580	! cloud fraction Decembre 2018
[3999]	581
[4910]	582	CALL cloudth_v6(klon,klev,k,tv, &
	583	zq,qta,fraca, &
	584	qcloud,ctot,ctot_vol,pspsk,paprs,pplay,tla,thl, &
[4654]	585	ratqs,zqs,temp, &
[4651]	586	cloudth_sth,cloudth_senv,cloudth_sigmath,cloudth_sigmaenv)
[3999]	587
[4910]	588	ELSEIF (iflag_cloudth_vert .EQ. 7) THEN
	589	! Updated version of Arnaud Jam (correction by E. Vignon) + adapted treatment
[5007]	590	! for boundary-layer mixed phase clouds
[4910]	591	CALL cloudth_mpc(klon,klev,k,mpc_bl_points,zt,zq,qta(:,k),fraca(:,k), &
	592	pspsk(:,k),paprs(:,k+1),paprs(:,k),pplay(:,k), tla(:,k), &
	593	ratqs(:,k),qcloud,qincloud_mpc,zfice_th,ctot(:,k),ctot_vol(:,k), &
	594	cloudth_sth(:,k),cloudth_senv(:,k),cloudth_sigmath(:,k),cloudth_sigmaenv(:,k))
	595
[3999]	596	ENDIF
	597
	598
	599	DO i=1,klon
	600	rneb(i,k)=ctot(i,k)
	601	rneblsvol(i,k)=ctot_vol(i,k)
	602	zqn(i)=qcloud(i)
[5204]	603	!--AB grid-mean vapor in the cloud - we assume saturation adjustment
	604	qvc(i) = rneb(i,k) * zqs(i)
[3999]	605	ENDDO
	606
	607	ENDIF
	608
	609	IF (iflag_cld_th .LE. 4) THEN
	610
	611	! lognormal
[5007]	612	lognormale(:) = .TRUE.
[3999]	613
	614	ELSEIF (iflag_cld_th .GE. 6) THEN
	615
	616	! lognormal distribution when no thermals
[5007]	617	lognormale(:) = fraca(:,k) < min_frac_th_cld
[3999]	618
	619	ELSE
[4226]	620	! When iflag_cld_th=5, we always assume
[3999]	621	! bi-gaussian distribution
[5007]	622	lognormale(:) = .FALSE.
[3999]	623
	624	ENDIF
	625
	626	DT(:) = 0.
	627	n_i(:)=0
	628	Tbef(:)=zt(:)
	629	qlbef(:)=0.
	630
	631	! Treatment of non-boundary layer clouds (lognormale)
[5383]	632	! We iterate here to take into account the change in qsat(T) and ice fraction
	633	! during the condensation process
	634	! the increment in temperature is calculated using the first principle of
	635	! thermodynamics (enthalpy conservation equation in a mesh composed of a cloud fraction
	636	! and a clear sky fraction)
	637	! note that we assume that the vapor in the cloud is at saturation for this calculation
[4226]	638
[3999]	639	DO iter=1,iflag_fisrtilp_qsat+1
[4226]	640
[5204]	641	keepgoing(:) = .FALSE.
	642
[3999]	643	DO i=1,klon
	644
[4424]	645	! keepgoing = .true. while convergence is not satisfied
[4226]	646
[5204]	647	IF (((ABS(DT(i)).GT.DDT0) .OR. (n_i(i) .EQ. 0)) .AND. lognormale(i)) THEN
[4226]	648
[3999]	649	! if not convergence:
[5204]	650	! we calculate a new iteration
	651	keepgoing(i) = .TRUE.
[3999]	652
	653	! P2.2.1> cloud fraction and condensed water mass calculation
	654	! Calculated variables:
	655	! rneb : cloud fraction
	656	! zqn : total water within the cloud
	657	! zcond: mean condensed water within the mesh
	658	! rhcl: clear-sky relative humidity
	659	!---------------------------------------------------------------
	660
[4424]	661	! new temperature that only serves in the iteration process:
[3999]	662	Tbef(i)=Tbef(i)+DT(i)
	663
	664	! Rneb, qzn and zcond for lognormal PDFs
[4072]	665	qtot(i)=zq(i)+zmqc(i)
[4226]	666
[4072]	667	ENDIF
[3999]	668
[4072]	669	ENDDO
	670
[4380]	671	! Calculation of saturation specific humidity and ice fraction
[5383]	672	CALL calc_qsat_ecmwf(klon,Tbef,qtot,pplay(:,k),RTT,0,.false.,zqs,zdqs)
[5450]	673
	674	IF (iflag_icefrac .GE. 3) THEN
	675	! consider a ice weighted qs to ensure that liquid clouds at T<0 have a consistent cloud fraction
	676	! and cloud condensed water content. idea following Dietlitcher et al. 2018, GMD
	677	! we make this option works only for the physically-based and tke-depdenent param (iflag_icefrac>=1)
	678	DO i=1,klon
	679	CALL calc_qsat_ecmwf(klon,Tbef,qtot,pplay(:,k),RTT,1,.false.,zqsl,zdqsl)
	680	CALL calc_qsat_ecmwf(klon,Tbef,qtot,pplay(:,k),RTT,2,.false.,zqsi,zdqsi)
	681	zqs(i)=zfice(i)zqsi(i)+(1.-zfice(i))zqsl(i)
	682	zdqs(i)=zfice(i)zdqsi(i)+zqsi(i)dzfice(i)+(1.-zfice(i))zdqsl(i)-zqsl(i)dzfice(i)
	683	ENDDO
	684	ENDIF
	685
[5383]	686	CALL calc_gammasat(klon,Tbef,qtot,pplay(:,k),gammasat,dgammasatdt)
[4072]	687	! saturation may occur at a humidity different from qsat (gamma qsat), so gamma correction for dqs
	688	zdqs(:) = gammasat(:)zdqs(:)+zqs(:)dgammasatdt(:)
	689
[5450]	690	! Cloud condensation based on subgrid pdf
[5204]	691	!--AB Activates a condensation scheme that allows for
	692	!--ice supersaturation and contrails evolution from aviation
	693	IF (ok_ice_supersat) THEN
	694
	695	!--Calculate the shear value (input for condensation and ice supersat)
	696	DO i = 1, klon
	697	!--Cell thickness [m]
	698	delta_z = ( paprs(i,k) - paprs(i,k+1) ) / RG / pplay(i,k) * Tbef(i) * RD
	699	IF ( iftop ) THEN
	700	! top
	701	shear(i) = SQRT( ( (u_seri(i,k) - u_seri(i,k-1)) / delta_z )**2. &
	702	+ ( (v_seri(i,k) - v_seri(i,k-1)) / delta_z )**2. )
	703	ELSEIF ( k .EQ. 1 ) THEN
	704	! surface
	705	shear(i) = SQRT( ( (u_seri(i,k+1) - u_seri(i,k)) / delta_z )**2. &
	706	+ ( (v_seri(i,k+1) - v_seri(i,k)) / delta_z )**2. )
	707	ELSE
	708	! other layers
	709	shear(i) = SQRT( ( ( (u_seri(i,k+1) + u_seri(i,k)) / 2. &
	710	- (u_seri(i,k) + u_seri(i,k-1)) / 2. ) / delta_z )**2. &
	711	+ ( ( (v_seri(i,k+1) + v_seri(i,k)) / 2. &
	712	- (v_seri(i,k) + v_seri(i,k-1)) / 2. ) / delta_z )**2. )
	713	ENDIF
	714	ENDDO
	715
	716	!---------------------------------------------
	717	!-- CONDENSATION AND ICE SUPERSATURATION --
	718	!---------------------------------------------
	719
	720	CALL condensation_ice_supersat( &
	721	klon, dtime, missing_val, &
	722	pplay(:,k), paprs(:,k), paprs(:,k+1), &
[5396]	723	cf_seri(:,k), rvc_seri(:,k), ql_seri(:,k), qi_seri(:,k), &
[5406]	724	shear, tke_dissip(:,k), cell_area, &
	725	Tbef, zq, zqs, gammasat, ratqs(:,k), keepgoing, &
	726	rneb(:,k), zqn, qvc, issrfra(:,k), qissr(:,k), &
[5204]	727	dcf_sub(:,k), dcf_con(:,k), dcf_mix(:,k), &
	728	dqi_adj(:,k), dqi_sub(:,k), dqi_con(:,k), dqi_mix(:,k), &
	729	dqvc_adj(:,k), dqvc_sub(:,k), dqvc_con(:,k), dqvc_mix(:,k), &
[5452]	730	rcont_seri(:,k), flight_dist(:,k), flight_h2o(:,k), contfra, &
	731	Tcritcont(:,k), qcritcont(:,k), potcontfraP(:,k), potcontfraNP(:,k), &
[5204]	732	dcf_avi(:,k), dqi_avi(:,k), dqvc_avi(:,k))
	733
	734
[5211]	735	ELSE
	736	!--generalised lognormal condensation scheme (Bony and Emanuel 2001)
	737
[5241]	738	CALL condensation_lognormal( &
	739	klon, Tbef, zq, zqs, gammasat, ratqs(:,k), &
	740	keepgoing, rneb(:,k), zqn, qvc)
[5204]	741
	742
	743	ENDIF ! .NOT. ok_ice_supersat
[4226]	744
[5450]	745	! cloud phase determination
	746	IF (iflag_icefrac .GE. 2) THEN
	747	! phase partitioning depending on temperature. activates here in the iteration process if iflag_icefrac > 2
	748	CALL icefrac_lscp_turb(klon, dtime, Tbef, pplay(:,k), paprs(:,k), paprs(:,k+1), omega(:,k), qice_ini, ziflcld, zqn, &
	749	rneb(:,k), tke(:,k), tke_dissip(:,k), zqliq, zqvapcl, zqice, zfice, dzfice, cldfraliq(:,k),sigma2_icefracturb(:,k), mean_icefracturb(:,k))
	750	ELSE
	751	! phase partitioning depending on temperature and eventually distance to cloud top
	752	IF (iflag_t_glace.GE.4) THEN
	753	! For iflag_t_glace GE 4 the phase partition function dependends on temperature AND distance to cloud top
	754	CALL distance_to_cloud_top(klon,klev,k,temp,pplay,paprs,rneb,zdistcltop,ztemp_cltop)
	755	ENDIF
	756	CALL icefrac_lscp(klon, zt, iflag_ice_thermo, zdistcltop,ztemp_cltop,zfice,dzfice)
	757	ENDIF
	758
	759
[5204]	760	DO i=1,klon
	761	IF (keepgoing(i)) THEN
[3999]	762
	763	! If vertical heterogeneity, change fraction by volume as well
	764	IF (iflag_cloudth_vert.GE.3) THEN
	765	ctot_vol(i,k)=rneb(i,k)
	766	rneblsvol(i,k)=ctot_vol(i,k)
	767	ENDIF
	768
	769
[4072]	770	! P2.2.2> Approximative calculation of temperature variation DT
	771	! due to condensation.
	772	! Calculated variables:
	773	! dT : temperature change due to condensation
	774	!---------------------------------------------------------------
[3999]	775
	776
	777	IF (zfice(i).LT.1) THEN
	778	cste=RLVTT
	779	ELSE
	780	cste=RLSTT
	781	ENDIF
[5007]	782
[5204]	783	IF ( ok_unadjusted_clouds ) THEN
	784	!--AB We relax the saturation adjustment assumption
	785	!-- qvc (grid-mean vapor in cloud) is calculated by the condensation scheme
	786	IF ( rneb(i,k) .GT. eps ) THEN
	787	qlbef(i) = MAX(0., zqn(i) - qvc(i) / rneb(i,k))
	788	ELSE
	789	qlbef(i) = 0.
	790	ENDIF
	791	ELSE
	792	qlbef(i)=max(0.,zqn(i)-zqs(i))
	793	ENDIF
	794
[3999]	795	num = -Tbef(i)+zt(i)+rneb(i,k)((1-zfice(i))RLVTT &
[4226]	796	+zfice(i)RLSTT)/RCPD/(1.0+RVTMP2(zq(i)+zmqc(i)))*qlbef(i)
[3999]	797	denom = 1.+rneb(i,k)((1-zfice(i))RLVTT+zfice(i)RLSTT)/cstezdqs(i) &
	798	-(RLSTT-RLVTT)/RCPD/(1.0+RVTMP2(zq(i)+zmqc(i)))rneb(i,k) &
[4226]	799	qlbef(i)dzfice(i)
[4424]	800	! here we update a provisory temperature variable that only serves in the iteration
	801	! process
[3999]	802	DT(i)=num/denom
	803	n_i(i)=n_i(i)+1
	804
[4424]	805	ENDIF ! end keepgoing
[3999]	806
	807	ENDDO ! end loop on i
	808
	809	ENDDO ! iter=1,iflag_fisrtilp_qsat+1
	810
[5408]	811	! P2.2> Final quantities calculation
[3999]	812	! Calculated variables:
	813	! rneb : cloud fraction
	814	! zcond: mean condensed water in the mesh
	815	! zqn : mean water vapor in the mesh
[4562]	816	! zfice: ice fraction in clouds
[3999]	817	! zt : temperature
	818	! rhcl : clear-sky relative humidity
	819	! ----------------------------------------------------------------
	820
	821
[5450]	822	! Cloud phase final determination
	823	!--------------------------------
[4562]	824	! For iflag_t_glace GE 4 the phase partition function dependends on temperature AND distance to cloud top
	825	IF (iflag_t_glace.GE.4) THEN
[5007]	826	CALL distance_to_cloud_top(klon,klev,k,temp,pplay,paprs,rneb,zdistcltop,ztemp_cltop)
	827	distcltop(:,k)=zdistcltop(:)
	828	temp_cltop(:,k)=ztemp_cltop(:)
	829	ENDIF
[5450]	830	! Partition function depending on temperature for all clouds (shallow convective and stratiform)
[5204]	831	CALL icefrac_lscp(klon, zt, iflag_ice_thermo, zdistcltop, ztemp_cltop, zfice, dzfice)
[4562]	832
[5450]	833	! Partition function depending on tke for non shallow-convective clouds, erase previous estimation
[5007]	834	IF (iflag_icefrac .GE. 1) THEN
[5383]	835	CALL icefrac_lscp_turb(klon, dtime, Tbef, pplay(:,k), paprs(:,k), paprs(:,k+1), omega(:,k), qice_ini, ziflcld, zqn, &
[5007]	836	rneb(:,k), tke(:,k), tke_dissip(:,k), zqliq, zqvapcl, zqice, zfice_turb, dzfice_turb, cldfraliq(:,k),sigma2_icefracturb(:,k), mean_icefracturb(:,k))
	837	ENDIF
	838
[5450]	839	! Water vapor update, subsequent latent heat exchange for each cloud type
	840	!------------------------------------------------------------------------
[3999]	841	DO i=1, klon
[5007]	842	! Overwrite phase partitioning in boundary layer mixed phase clouds when the
	843	! iflag_cloudth_vert=7 and specific param is activated
[3999]	844	IF (mpc_bl_points(i,k) .GT. 0) THEN
	845	zcond(i) = MAX(0.0,qincloud_mpc(i))*rneb(i,k)
	846	! following line is very strange and probably wrong
	847	rhcl(i,k)= (zqs(i)+zq(i))/2./zqs(i)
	848	! water vapor update and partition function if thermals
	849	zq(i) = zq(i) - zcond(i)
[4910]	850	zfice(i)=zfice_th(i)
[3999]	851	ELSE
	852	! Checks on rneb, rhcl and zqn
	853	IF (rneb(i,k) .LE. 0.0) THEN
	854	zqn(i) = 0.0
	855	rneb(i,k) = 0.0
	856	zcond(i) = 0.0
	857	rhcl(i,k)=zq(i)/zqs(i)
	858	ELSE IF (rneb(i,k) .GE. 1.0) THEN
	859	zqn(i) = zq(i)
	860	rneb(i,k) = 1.0
[5204]	861	IF ( ok_unadjusted_clouds ) THEN
	862	!--AB We relax the saturation adjustment assumption
	863	!-- qvc (grid-mean vapor in cloud) is calculated by the condensation scheme
	864	zcond(i) = MAX(0., zqn(i) - qvc(i))
	865	ELSE
	866	zcond(i) = MAX(0.0,zqn(i)-zqs(i))
	867	ENDIF
[3999]	868	rhcl(i,k)=1.0
	869	ELSE
[5204]	870	IF ( ok_unadjusted_clouds ) THEN
	871	!--AB We relax the saturation adjustment assumption
	872	!-- qvc (grid-mean vapor in cloud) is calculated by the condensation scheme
	873	zcond(i) = MAX(0., zqn(i) * rneb(i,k) - qvc(i))
	874	ELSE
	875	zcond(i) = MAX(0.0,zqn(i)-zqs(i))*rneb(i,k)
	876	ENDIF
[3999]	877	! following line is very strange and probably wrong:
	878	rhcl(i,k)=(zqs(i)+zq(i))/2./zqs(i)
[5007]	879	! Overwrite partitioning for non shallow-convective clouds if iflag_icefrac>1 (icefrac turb param)
	880	IF (iflag_icefrac .GE. 1) THEN
	881	IF (lognormale(i)) THEN
	882	zcond(i) = zqliq(i) + zqice(i)
[5450]	883	zfice(i) = zfice_turb(i)
[5007]	884	rhcl(i,k) = zqvapcl(i) * rneb(i,k) + (zq(i) - zqn(i)) * (1.-rneb(i,k))
	885	ENDIF
	886	ENDIF
[3999]	887	ENDIF
	888
[4226]	889	! water vapor update
	890	zq(i) = zq(i) - zcond(i)
[3999]	891
	892	ENDIF
[5450]	893
	894
[3999]	895	! temperature update due to phase change
	896	zt(i) = zt(i) + (1.-zfice(i))*zcond(i) &
	897	& * RLVTT/RCPD/(1.0+RVTMP2*(zq(i)+zmqc(i)+zcond(i))) &
	898	+zfice(i)zcond(i) RLSTT/RCPD/(1.0+RVTMP2*(zq(i)+zmqc(i)+zcond(i)))
	899	ENDDO
	900
	901	! If vertical heterogeneity, change volume fraction
	902	IF (iflag_cloudth_vert .GE. 3) THEN
	903	ctot_vol(1:klon,k)=min(max(ctot_vol(1:klon,k),0.),1.)
	904	rneblsvol(1:klon,k)=ctot_vol(1:klon,k)
	905	ENDIF
	906
[5204]	907
[3999]	908	! ----------------------------------------------------------------
[5408]	909	! P3> Precipitation processes, after cloud formation
	910	! - precipitation formation, melting/freezing
[3999]	911	! ----------------------------------------------------------------
[4226]	912
[5413]	913	! Initiate the quantity of liquid and solid condensates
	914	! Note that in the following, zcond is the total amount of condensates
	915	! including newly formed precipitations (i.e., condensates formed by the
	916	! condensation process), while zoliq is the total amount of condensates in
	917	! the cloud (i.e., on which precipitation processes have applied)
	918	DO i = 1, klon
	919	zoliq(i) = zcond(i)
	920	zoliql(i) = zcond(i) * ( 1. - zfice(i) )
	921	zoliqi(i) = zcond(i) * zfice(i)
	922	ENDDO
	923
[4803]	924	!================================================================
[5408]	925	! Flag for the new and more microphysical treatment of precipitation from Atelier Nuage (R)
[4803]	926	IF (ok_poprecip) THEN
	927
	928	CALL poprecip_postcld(klon, dtime, paprs(:,k), paprs(:,k+1), pplay(:,k), &
	929	ctot_vol(:,k), ptconv(:,k), &
	930	zt, zq, zoliql, zoliqi, zfice, &
	931	rneb(:,k), znebprecipclr, znebprecipcld, &
	932	zrfl, zrflclr, zrflcld, &
	933	zifl, ziflclr, ziflcld, &
[4830]	934	qraindiag(:,k), qsnowdiag(:,k), dqrauto(:,k), &
[4819]	935	dqrcol(:,k), dqrmelt(:,k), dqrfreez(:,k), &
	936	dqsauto(:,k), dqsagg(:,k), dqsrim(:,k), &
	937	dqsmelt(:,k), dqsfreez(:,k) &
[4803]	938	)
[5431]	939	DO i = 1, klon
	940	zoliq(i) = zoliql(i) + zoliqi(i)
	941	ENDDO
[4803]	942
	943	!================================================================
	944	ELSE
	945
[5413]	946	CALL histprecip_postcld(klon, dtime, iftop, paprs(:,k), paprs(:,k+1), pplay(:,k), &
	947	ctot_vol(:,k), ptconv(:,k), zdqsdT_raw, &
	948	zt, zq, zoliq, zoliql, zoliqi, zcond, zfice, zmqc, &
	949	rneb(:,k), znebprecipclr, znebprecipcld, &
	950	zneb, tot_zneb, zrho_up, zvelo_up, &
	951	zrfl, zrflclr, zrflcld, zifl, ziflclr, ziflcld, &
	952	zradocond, zradoice, dqrauto(:,k), dqsauto(:,k) &
	953	)
[3999]	954
[4803]	955	ENDIF ! ok_poprecip
	956
[5408]	957	! End of precipitation processes after cloud formation
	958	! ----------------------------------------------------
[3999]	959
[5406]	960	!----------------------------------------------------------------------
[5408]	961	! P4> Calculation of cloud condensates amount seen by radiative scheme
[5406]	962	!----------------------------------------------------------------------
[4803]	963
[5413]	964	DO i=1,klon
[3999]	965
[5413]	966	IF (ok_poprecip) THEN
	967	IF (ok_radocond_snow) THEN
	968	radocond(i,k) = zoliq(i)
	969	zradoice(i) = zoliqi(i) + qsnowdiag(i,k)
	970	ELSE
	971	radocond(i,k) = zoliq(i)
	972	zradoice(i) = zoliqi(i)
	973	ENDIF
	974	ELSE
	975	radocond(i,k) = zradocond(i)
	976	ENDIF
[4114]	977
[5413]	978	! calculate the percentage of ice in "radocond" so cloud+precip seen
	979	! by the radiation scheme
	980	IF (radocond(i,k) .GT. 0.) THEN
	981	radicefrac(i,k)=MIN(MAX(zradoice(i)/radocond(i,k),0.),1.)
	982	ENDIF
[4114]	983	ENDDO
	984
[3999]	985	! ----------------------------------------------------------------
[5408]	986	! P5> Wet scavenging
[3999]	987	! ----------------------------------------------------------------
	988
	989	!Scavenging through nucleation in the layer
	990
	991	DO i = 1,klon
	992
	993	IF(zcond(i).GT.zoliq(i)+1.e-10) THEN
	994	beta(i,k) = (zcond(i)-zoliq(i))/zcond(i)/dtime
	995	ELSE
	996	beta(i,k) = 0.
	997	ENDIF
	998
[4059]	999	zprec_cond(i) = MAX(zcond(i)-zoliq(i),0.0)*(paprs(i,k)-paprs(i,k+1))/RG
[3999]	1000
	1001	IF (rneb(i,k).GT.0.0.AND.zprec_cond(i).GT.0.) THEN
	1002
[4654]	1003	IF (temp(i,k) .GE. t_glace_min) THEN
[3999]	1004	zalpha_tr = a_tr_sca(3)
	1005	ELSE
	1006	zalpha_tr = a_tr_sca(4)
	1007	ENDIF
	1008
[5450]	1009	zfrac_lessi = 1. - EXP(zalpha_tr*zprec_cond(i)/MAX(rneb(i,k),seuil_neb))
	1010	frac_nucl(i,k)= 1.-MAX(rneb(i,k),seuil_neb)*zfrac_lessi
[4226]	1011
[3999]	1012	! Nucleation with a factor of -1 instead of -0.5
[5450]	1013	zfrac_lessi = 1. - EXP(-zprec_cond(i)/MAX(rneb(i,k),seuil_neb))
[3999]	1014
	1015	ENDIF
	1016
[4226]	1017	ENDDO
	1018
[3999]	1019	! Scavenging through impaction in the underlying layer
	1020
	1021	DO kk = k-1, 1, -1
	1022
	1023	DO i = 1, klon
	1024
	1025	IF (rneb(i,k).GT.0.0.AND.zprec_cond(i).GT.0.) THEN
	1026
[4654]	1027	IF (temp(i,kk) .GE. t_glace_min) THEN
[3999]	1028	zalpha_tr = a_tr_sca(1)
	1029	ELSE
	1030	zalpha_tr = a_tr_sca(2)
	1031	ENDIF
	1032
[5450]	1033	zfrac_lessi = 1. - EXP(zalpha_tr*zprec_cond(i)/MAX(rneb(i,k),seuil_neb))
	1034	frac_impa(i,kk)= 1.-MAX(rneb(i,k),seuil_neb)*zfrac_lessi
[3999]	1035
	1036	ENDIF
	1037
	1038	ENDDO
	1039
	1040	ENDDO
[5406]	1041
	1042	!------------------------------------------------------------
[5408]	1043	! P6 > write diagnostics and outputs
[5406]	1044	!------------------------------------------------------------
	1045
	1046	!--AB Write diagnostics and tracers for ice supersaturation
	1047	IF ( ok_ice_supersat ) THEN
	1048	CALL calc_qsat_ecmwf(klon,zt,qzero,pplay(:,k),RTT,1,.false.,qsatl(:,k),zdqs)
	1049	CALL calc_qsat_ecmwf(klon,zt,qzero,pplay(:,k),RTT,2,.false.,qsati(:,k),zdqs)
[4226]	1050
[5406]	1051	DO i = 1, klon
	1052
	1053	IF ( zoliq(i) .LE. 0. ) THEN
	1054	!--If everything was precipitated, the remaining empty cloud is dissipated
	1055	!--and everything is transfered to the subsaturated clear sky region
	1056	rneb(i,k) = 0.
	1057	qvc(i) = 0.
	1058	ENDIF
	1059
	1060	cf_seri(i,k) = rneb(i,k)
	1061
	1062	IF ( .NOT. ok_unadjusted_clouds ) THEN
	1063	qvc(i) = zqs(i) * rneb(i,k)
	1064	ENDIF
	1065	IF ( zq(i) .GT. min_qParent ) THEN
	1066	rvc_seri(i,k) = qvc(i) / zq(i)
	1067	ELSE
	1068	rvc_seri(i,k) = min_ratio
	1069	ENDIF
	1070	!--The MIN barrier is NEEDED because of:
	1071	!-- 1) very rare pathological cases of the lsc scheme (rvc = 1. + 1e-16 sometimes)
	1072	!-- 2) the thermal scheme does NOT guarantee that qvc <= qvap (or even qincld <= qtot)
	1073	!--The MAX barrier is a safeguard that should not be activated
	1074	rvc_seri(i,k) = MIN(MAX(rvc_seri(i,k), 0.), 1.)
[5452]	1075	IF ( ok_plane_contrail ) THEN
	1076	IF ( rneb(i,k) .GT. min_qParent ) THEN
	1077	rcont_seri(i,k) = contfra(i) / rneb(i,k)
	1078	ELSE
	1079	rcont_seri(i,k) = min_ratio
	1080	ENDIF
	1081	!--This barrier should never be activated
	1082	rcont_seri(i,k) = MIN(MAX(rcont_seri(i,k), 0.), 1.)
	1083	ENDIF
[5406]	1084
	1085	!--Diagnostics
	1086	gamma_cond(i,k) = gammasat(i)
	1087	subfra(i,k) = 1. - cf_seri(i,k) - issrfra(i,k)
	1088	qsub(i,k) = zq(i) - qvc(i) - qissr(i,k)
[5412]	1089	qcld(i,k) = qvc(i) + zoliq(i)
[5406]	1090	ENDDO
	1091	ENDIF
	1092
[4803]	1093	! Outputs:
	1094	!-------------------------------
	1095	! Precipitation fluxes at layer interfaces
	1096	! + precipitation fractions +
	1097	! temperature and water species tendencies
	1098	DO i = 1, klon
	1099	psfl(i,k)=zifl(i)
	1100	prfl(i,k)=zrfl(i)
	1101	pfraclr(i,k)=znebprecipclr(i)
	1102	pfracld(i,k)=znebprecipcld(i)
	1103	d_q(i,k) = zq(i) - qt(i,k)
	1104	d_t(i,k) = zt(i) - temp(i,k)
[5412]	1105
	1106	IF (ok_bug_phase_lscp) THEN
	1107	d_ql(i,k) = (1-zfice(i))*zoliq(i)
	1108	d_qi(i,k) = zfice(i)*zoliq(i)
	1109	ELSE
	1110	d_ql(i,k) = zoliql(i)
	1111	d_qi(i,k) = zoliqi(i)
	1112	ENDIF
	1113
[4803]	1114	ENDDO
	1115
	1116
[5413]	1117	ENDDO ! loop on k from top to bottom
[4059]	1118
[3999]	1119
	1120	! Rain or snow at the surface (depending on the first layer temperature)
	1121	DO i = 1, klon
	1122	snow(i) = zifl(i)
	1123	rain(i) = zrfl(i)
[4392]	1124	! c_iso final output
[3999]	1125	ENDDO
	1126
	1127	IF (ncoreczq>0) THEN
	1128	WRITE(lunout,*)'WARNING : ZQ in LSCP ',ncoreczq,' val < 1.e-15.'
	1129	ENDIF
	1130
[4654]	1131
	1132	RETURN
	1133
[4380]	1134	END SUBROUTINE lscp
[3999]	1135	!+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
	1136
[4664]	1137	END MODULE lmdz_lscp

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