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updatereffrad_mod.F @ 3026

Last change on this file since 3026 was 2660, checked in by cmathe, 3 years ago
correction on rsedcloudco2/opacities/riceco2 computations, and more comments
File size: 12.7 KB

Rev	Line
[1969]	1	MODULE updatereffrad_mod
	2
	3	IMPLICIT NONE
	4
	5	CONTAINS
	6
[38]	7	SUBROUTINE updatereffrad(ngrid,nlayer,
[2199]	8	& rdust,rstormdust,rtopdust,rice,nuice,
[2447]	9	& reffrad,nueffrad, riceco2, nuiceco2,
[2494]	10	& pq,tauscaling,tau,pplay, pt)
[1969]	11	USE updaterad, ONLY: updaterdust, updaterice_micro,
[2447]	12	& updaterice_microco2, updaterice_typ
[1036]	13	use tracer_mod, only: nqmx, igcm_dust_mass, igcm_dust_number,
	14	& igcm_h2o_ice, igcm_ccn_mass, radius,
[2447]	15	& igcm_co2_ice, nuiceco2_ref,
	16	& igcm_ccnco2_number, igcm_ccnco2_mass,
[2562]	17	& igcm_ccnco2_h2o_number,
	18	& igcm_ccnco2_h2o_mass_ice,
	19	& igcm_ccnco2_h2o_mass_ccn,
[1036]	20	& igcm_ccn_number, nuice_ref, varian,
[1974]	21	& ref_r0, igcm_dust_submicron,
[2199]	22	& igcm_stormdust_mass,igcm_stormdust_number,
[2494]	23	& igcm_topdust_mass,igcm_topdust_number,
	24	& rho_ice
[1246]	25	USE dimradmars_mod, only: nueffdust,naerkind,
	26	& name_iaer,
	27	& iaer_dust_conrath,iaer_dust_doubleq,
[1974]	28	& iaer_dust_submicron,iaer_h2o_ice,
[2199]	29	& iaer_stormdust_doubleq,iaer_topdust_doubleq
[2409]	30	use dust_param_mod, only: doubleq, active
[38]	31	IMPLICIT NONE
	32	c=======================================================================
	33	c subject:
	34	c --------
	35	c Subroutine designed to update the aerosol size distribution used by
	36	c the radiative transfer scheme. This size distribution is assumed
	37	c to be a log-normal distribution, with effective radius "reffrad" and
	38	c variance "nueffrad".
	39	c At firstcall, "rice" and "nuice" are not known, because
	40	c the H2O ice microphysical scheme is called after the radiative
	41	c transfer in physiq.F. That's why we assess the size of the
	42	c water-ice particles at firstcall (see part 1.2 below).
	43	c
	44	c author:
	45	c ------
	46	c J.-B. Madeleine (2009-2010)
	47	c
	48	c=======================================================================
	49	c
	50	c Declarations :
	51	c -------------
	52	c
[1969]	53	include "callkeys.h"
[38]	54
	55	c-----------------------------------------------------------------------
[1974]	56	c Inputs/outputs:
[38]	57	c ------
	58
[1974]	59	INTEGER, INTENT(in) :: ngrid,nlayer
[38]	60	c Ice geometric mean radius (m)
[1974]	61	REAL, INTENT(out) :: rice(ngrid,nlayer)
[38]	62	c Estimated effective variance of the size distribution (n.u.)
[1974]	63	REAL, INTENT(out) :: nuice(ngrid,nlayer)
[38]	64	c Tracer mass mixing ratio (kg/kg)
[1974]	65	REAL, INTENT(in) :: pq(ngrid,nlayer,nqmx)
	66	REAL, INTENT(out) :: rdust(ngrid,nlayer) ! Dust geometric mean radius (m)
[2199]	67	REAL, INTENT(out) :: rstormdust(ngrid,nlayer) ! Dust geometric mean radius (m)
	68	REAL, INTENT(out) :: rtopdust(ngrid,nlayer) ! Dust geometric mean radius (m)
[1974]	69	REAL, INTENT(in) :: pplay(ngrid,nlayer) ! altitude at the middle of the layers
	70	REAL, INTENT(in) :: tau(ngrid,naerkind)
[38]	71	c Aerosol effective radius used for radiative transfer (meter)
[1974]	72	REAL, INTENT(out) :: reffrad(ngrid,nlayer,naerkind)
[38]	73	c Aerosol effective variance used for radiative transfer (n.u.)
[1974]	74	REAL, INTENT(out) :: nueffrad(ngrid,nlayer,naerkind)
	75	REAL, INTENT(in) :: tauscaling(ngrid) ! Convertion factor for qccn and Nccn
[2447]	76	c CO2 ice mean radius (m)
[2459]	77	double precision, INTENT(out) :: riceco2(ngrid,nlayer) ! co2 ice radius
[2447]	78	REAL, INTENT(out) :: nuiceco2(ngrid,nlayer)
[2494]	79	REAL, INTENT(in) :: pt(ngrid,nlayer) ! temperature
[2447]	80
[38]	81	c Local variables:
	82	c ---------------
	83
	84	INTEGER :: ig,l ! 3D grid indices
	85	INTEGER :: iaer ! Aerosol index
	86
	87	c Number of cloud condensation nuclei near the surface
	88	c (only used at firstcall). This value is taken from
	89	c Montmessin et al. 2004 JGR 109 E10004 p5 (2E6 part m-3), and
	90	c converted to part kg-1 using a typical atmospheric density.
	91
[2660]	92	REAL, PARAMETER :: ccn0 = 1.3E8, threshold = 1e-30 ! limit value
[629]	93
	94	c For microphysics only:
	95	REAL Mo,No ! Mass and number of ccn
[1047]	96	REAL rhocloud(ngrid,nlayer) ! Cloud density (kg.m-3)
[2447]	97	c For CO2 microphysics only:
	98	REAL :: rhocloudco2(ngrid, nlayer) ! co2 cloud density
[38]	99
[1224]	100	LOGICAL,SAVE :: firstcall=.true.
[2660]	101	REAL Nccnco2, Qccnco2, Niceco2
[2562]	102	REAL Nccnco2_h2o, Qccnco2_h2o
[38]	103	REAL CBRT
	104	EXTERNAL CBRT
	105
[2584]	106
	107	!$OMP THREADPRIVATE(firstcall)
	108
[38]	109	c==================================================================
[629]	110	c 1. Update radius from fields from dynamics or initial state
	111	c==================================================================
[38]	112
[358]	113	c 1.1 Dust particles
	114	c ------------------
	115	IF (doubleq.AND.active) THEN
	116	DO l=1,nlayer
	117	DO ig=1, ngrid
[744]	118	call updaterdust(pq(ig,l,igcm_dust_mass),
	119	& pq(ig,l,igcm_dust_number),rdust(ig,l))
[358]	120	nueffdust(ig,l) = exp(varian**2.)-1.
	121	ENDDO
	122	ENDDO
	123	ELSE
	124	DO l=1,nlayer
	125	DO ig=1, ngrid
	126	rdust(ig,l) = 0.8E-6
	127	nueffdust(ig,l) = 0.3
	128	ENDDO
[38]	129	ENDDO
[358]	130	ENDIF
[1974]	131
	132	! updating radius of stormdust particles
	133	IF (rdstorm.AND.active) THEN
	134	DO l=1,nlayer
	135	DO ig=1, ngrid
	136	call updaterdust(pq(ig,l,igcm_stormdust_mass),
	137	& pq(ig,l,igcm_stormdust_number),rstormdust(ig,l))
	138	nueffdust(ig,l) = exp(varian**2.)-1.
	139	ENDDO
	140	ENDDO
	141	ENDIF
[2199]	142
	143	! updating radius of topdust particles
[2628]	144	IF (topflows.AND.active) THEN
[2199]	145	DO l=1,nlayer
	146	DO ig=1, ngrid
	147	call updaterdust(pq(ig,l,igcm_topdust_mass),
	148	& pq(ig,l,igcm_topdust_number),rtopdust(ig,l))
	149	nueffdust(ig,l) = exp(varian**2.)-1.
	150	ENDDO
	151	ENDDO
	152	ENDIF
[629]	153
[358]	154	c 1.2 Water-ice particles
	155	c -----------------------
[744]	156
	157	IF (water.AND.activice) THEN
	158	IF (microphys) THEN
[1208]	159
	160	c At firstcall, the true number and true mass of cloud condensation nuclei are not known.
	161	c Indeed it is scaled on the prescribed dust opacity via a 'tauscaling' coefficient
	162	c computed after radiative transfer. If tauscaling is not in startfi, we make an assumption for its value.
	163
[744]	164	IF (firstcall) THEN
[1974]	165	!IF (minval(tauscaling).lt.0) tauscaling(:) = 1.e-3 ! default value when non-read in startfi is -1
	166	!IF (freedust) tauscaling(:) = 1. ! if freedust, enforce no rescaling at all
[1208]	167	firstcall = .false.
	168	ENDIF
	169
	170	DO l=1,nlayer
	171	DO ig=1,ngrid
	172	call updaterice_micro(pq(ig,l,igcm_h2o_ice),
	173	& pq(ig,l,igcm_ccn_mass),
	174	& pq(ig,l,igcm_ccn_number),
	175	& tauscaling(ig),rice(ig,l),
	176	& rhocloud(ig,l))
	177	nuice(ig,l) = nuice_ref
[358]	178	ENDDO
[1208]	179	ENDDO
[744]	180
	181	ELSE ! if not microphys
	182
	183	DO l=1,nlayer
	184	DO ig=1,ngrid
	185	call updaterice_typ(pq(ig,l,igcm_h2o_ice),
	186	& tau(ig,1),pplay(ig,l),rice(ig,l))
	187	nuice(ig,l) = nuice_ref
[629]	188	ENDDO
[744]	189	ENDDO
	190
	191	ENDIF ! of if microphys
	192	ENDIF ! of if (water.AND.activice)
[38]	193
[2447]	194
[2494]	195	c 1.3 CO2-ice particles
[2447]	196
	197	IF (co2clouds.AND.activeco2ice) THEN
	198	DO l=1,nlayer
	199	DO ig=1,ngrid
[2660]	200	Niceco2 = max(pq(ig,l,igcm_co2_ice), threshold)
	201	Nccnco2 = max(pq(ig,l,igcm_ccnco2_number),
	202	& threshold)
	203	Qccnco2 = max(pq(ig,l,igcm_ccnco2_mass),
	204	& threshold)
[2562]	205	Nccnco2_h2o = 0.
	206	Qccnco2_h2o = 0.
	207	if (co2useh2o) then
[2660]	208	Nccnco2_h2o = max(pq(ig,l,igcm_ccnco2_h2o_number),
	209	& threshold)
	210	Qccnco2_h2o = max(pq(ig,l,igcm_ccnco2_h2o_mass_ice)
	211	& + pq(ig,l,igcm_ccnco2_h2o_mass_ccn),
	212	& threshold)
	213
[2562]	214	Nccnco2 = Nccnco2 - Nccnco2_h2o
	215	Qccnco2 = Qccnco2 - Qccnco2_h2o
[2660]	216	if (Nccnco2 <= 0) then
	217	Nccnco2 = threshold
	218	Qccnco2 = threshold
	219	end if
[2562]	220	end if
[2660]	221	call updaterice_microco2(dble(Niceco2),
[2562]	222	& dble(Qccnco2), dble(Nccnco2),
	223	& dble(Qccnco2_h2o),
	224	& dble(Nccnco2_h2o),
[2494]	225	& pt(ig,l),
[2447]	226	& tauscaling(ig),riceco2(ig,l),
	227	& rhocloudco2(ig,l))
	228	nuiceco2(ig,l) = nuiceco2_ref
	229	END DO
	230	ENDDO
	231	ENDIF ! of if (co2clouds.AND.activeco2ice)
	232
[38]	233	c==================================================================
	234	c 2. Radius used in the radiative transfer code (reffrad)
	235	c==================================================================
	236
	237	DO iaer = 1, naerkind ! Loop on aerosol kind
	238	aerkind: SELECT CASE (name_iaer(iaer))
	239	c==================================================================
	240	CASE("dust_conrath") aerkind ! Typical dust profile
	241	c==================================================================
	242	DO l=1,nlayer
	243	DO ig=1,ngrid
[358]	244	reffrad(ig,l,iaer) = rdust(ig,l) *
	245	& (1.e0 + nueffdust(ig,l))**2.5
[38]	246	nueffrad(ig,l,iaer) = nueffdust(ig,l)
	247	ENDDO
	248	ENDDO
	249	c==================================================================
	250	CASE("dust_doubleq") aerkind! Two-moment scheme for dust
	251	c==================================================================
	252	DO l=1,nlayer
	253	DO ig=1,ngrid
[358]	254	reffrad(ig,l,iaer) = rdust(ig,l) * ref_r0
[38]	255	nueffrad(ig,l,iaer) = nueffdust(ig,l)
	256	ENDDO
	257	ENDDO
	258	c==================================================================
	259	CASE("dust_submicron") aerkind ! Small dust population
	260	c==================================================================
	261	DO l=1,nlayer
	262	DO ig=1,ngrid
	263	reffrad(ig,l,iaer)=radius(igcm_dust_submicron)
	264	nueffrad(ig,l,iaer)=0.03
	265	ENDDO
	266	ENDDO
	267	c==================================================================
	268	CASE("h2o_ice") aerkind ! Water ice crystals
	269	c==================================================================
	270	DO l=1,nlayer
	271	DO ig=1,ngrid
[358]	272	c About reffice, do not confuse the mass mean radius
	273	c (rayon moyen massique) and the number median radius
	274	c (or geometric mean radius, rayon moyen géométrique).
	275	c rice is a mass mean radius, whereas rdust
	276	c is a geometric mean radius:
	277	c number median rad = mass mean rad x exp(-1.5 sigma0^2)
	278	c (Montmessin et al. 2004 paragraph 30). Therefore:
[38]	279	reffrad(ig,l,iaer)=rice(ig,l)*(1.+nuice_ref)
	280	nueffrad(ig,l,iaer)=nuice_ref
	281	ENDDO
	282	ENDDO
	283	c==================================================================
[2447]	284	CASE("co2_ice") aerkind ! CO2 ice crystals
	285	c==================================================================
	286	DO l=1,nlayer
	287	DO ig=1,ngrid
[2494]	288	reffrad(ig,l,iaer)=real(riceco2(ig,l))*(1.+nuiceco2_ref)
[2447]	289	nueffrad(ig,l,iaer)=nuiceco2_ref
	290	ENDDO
	291	ENDDO
	292	c==================================================================
[1974]	293	CASE("stormdust_doubleq") aerkind! Two-moment scheme for
	294	c stormdust; same distribution than normal dust
	295	c==================================================================
	296	DO l=1,nlayer
	297	DO ig=1,ngrid
	298	reffrad(ig,l,iaer) = rstormdust(ig,l) * ref_r0
	299	nueffrad(ig,l,iaer) = nueffdust(ig,l)
	300	ENDDO
	301	ENDDO
	302	c==================================================================
[2199]	303	CASE("topdust_doubleq") aerkind! MV18: Two-moment scheme for
	304	c topdust; same distribution than normal dust
	305	c==================================================================
	306	DO l=1,nlayer
	307	DO ig=1,ngrid
	308	reffrad(ig,l,iaer) = rtopdust(ig,l) * ref_r0
	309	nueffrad(ig,l,iaer) = nueffdust(ig,l)
	310	ENDDO
	311	ENDDO
	312	c==================================================================
[38]	313	END SELECT aerkind
	314	ENDDO ! iaer (loop on aerosol kind)
	315
[1969]	316	END SUBROUTINE updatereffrad
	317
	318	END MODULE updatereffrad_mod

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