New URL for NEMO forge! http://forge.nemo-ocean.eu

Since March 2022 along with NEMO 4.2 release, the code development moved to a self-hosted GitLab.
This present forge is now archived and remained online for history.

sbcblk_core.F90 in branches/2013/dev_MERGE_2013/NEMOGCM/NEMO/OPA_SRC/SBC – NEMO

Context Navigation

source: branches/2013/dev_MERGE_2013/NEMOGCM/NEMO/OPA_SRC/SBC/sbcblk_core.F90 @ 4306

Last change on this file since 4306 was 4306, checked in by cetlod, 10 years ago
dev_MERGE_2013 : merge in the solar mean flux branch from MERCATOR, see ticket #1187
Property svn:keywords set to `Id`
File size: 58.3 KB

Rev	Line
[888]	1	MODULE sbcblk_core
	2	!!======================================================================
	3	!! * MODULE sbcblk_core *
	4	!! Ocean forcing: momentum, heat and freshwater flux formulation
	5	!!=====================================================================
[1482]	6	!! History : 1.0 ! 2004-08 (U. Schweckendiek) Original code
	7	!! 2.0 ! 2005-04 (L. Brodeau, A.M. Treguier) additions:
	8	!! - new bulk routine for efficiency
	9	!! - WINDS ARE NOW ASSUMED TO BE AT T POINTS in input files !!!!
	10	!! - file names and file characteristics in namelist
	11	!! - Implement reading of 6-hourly fields
	12	!! 3.0 ! 2006-06 (G. Madec) sbc rewritting
[2715]	13	!! - ! 2006-12 (L. Brodeau) Original code for TURB_CORE_2Z
[1482]	14	!! 3.2 ! 2009-04 (B. Lemaire) Introduce iom_put
[2528]	15	!! 3.3 ! 2010-10 (S. Masson) add diurnal cycle
[3294]	16	!! 3.4 ! 2011-11 (C. Harris) Fill arrays required by CICE
[888]	17	!!----------------------------------------------------------------------
	18
	19	!!----------------------------------------------------------------------
	20	!! sbc_blk_core : bulk formulation as ocean surface boundary condition
	21	!! (forced mode, CORE bulk formulea)
	22	!! blk_oce_core : ocean: computes momentum, heat and freshwater fluxes
	23	!! blk_ice_core : ice : computes momentum, heat and freshwater fluxes
	24	!! turb_core : computes the CORE turbulent transfer coefficients
	25	!!----------------------------------------------------------------------
	26	USE oce ! ocean dynamics and tracers
	27	USE dom_oce ! ocean space and time domain
	28	USE phycst ! physical constants
	29	USE fldread ! read input fields
	30	USE sbc_oce ! Surface boundary condition: ocean fields
[3680]	31	USE cyclone ! Cyclone 10m wind form trac of cyclone centres
[2528]	32	USE sbcdcy ! surface boundary condition: diurnal cycle
[888]	33	USE iom ! I/O manager library
	34	USE in_out_manager ! I/O manager
	35	USE lib_mpp ! distribued memory computing library
[3294]	36	USE wrk_nemo ! work arrays
	37	USE timing ! Timing
[888]	38	USE lbclnk ! ocean lateral boundary conditions (or mpp link)
	39	USE prtctl ! Print control
[3294]	40	USE sbcwave,ONLY : cdn_wave !wave module
	41	#if defined key_lim3 \|\| defined key_cice
[1465]	42	USE sbc_ice ! Surface boundary condition: ice fields
[905]	43	#endif
[4161]	44	USE lib_fortran ! to use key_nosignedzero
[888]	45
	46	IMPLICIT NONE
	47	PRIVATE
	48
[2715]	49	PUBLIC sbc_blk_core ! routine called in sbcmod module
	50	PUBLIC blk_ice_core ! routine called in sbc_ice_lim module
[4306]	51	PUBLIC blk_ice_meanqsr ! routine called in sbc_ice_lim module
[3294]	52	PUBLIC turb_core_2z ! routine calles in sbcblk_mfs module
[2715]	53
[1705]	54	INTEGER , PARAMETER :: jpfld = 9 ! maximum number of files to read
[888]	55	INTEGER , PARAMETER :: jp_wndi = 1 ! index of 10m wind velocity (i-component) (m/s) at T-point
	56	INTEGER , PARAMETER :: jp_wndj = 2 ! index of 10m wind velocity (j-component) (m/s) at T-point
[3625]	57	INTEGER , PARAMETER :: jp_humi = 3 ! index of specific humidity ( % )
[888]	58	INTEGER , PARAMETER :: jp_qsr = 4 ! index of solar heat (W/m2)
	59	INTEGER , PARAMETER :: jp_qlw = 5 ! index of Long wave (W/m2)
	60	INTEGER , PARAMETER :: jp_tair = 6 ! index of 10m air temperature (Kelvin)
	61	INTEGER , PARAMETER :: jp_prec = 7 ! index of total precipitation (rain+snow) (Kg/m2/s)
	62	INTEGER , PARAMETER :: jp_snow = 8 ! index of snow (solid prcipitation) (kg/m2/s)
[1705]	63	INTEGER , PARAMETER :: jp_tdif = 9 ! index of tau diff associated to HF tau (N/m2) at T-point
[2715]	64
[888]	65	TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf ! structure of input fields (file informations, fields read)
	66
[1601]	67	! !!! CORE bulk parameters
[888]	68	REAL(wp), PARAMETER :: rhoa = 1.22 ! air density
	69	REAL(wp), PARAMETER :: cpa = 1000.5 ! specific heat of air
	70	REAL(wp), PARAMETER :: Lv = 2.5e6 ! latent heat of vaporization
	71	REAL(wp), PARAMETER :: Ls = 2.839e6 ! latent heat of sublimation
	72	REAL(wp), PARAMETER :: Stef = 5.67e-8 ! Stefan Boltzmann constant
[4161]	73	REAL(wp), PARAMETER :: Cice = 1.4e-3 ! iovi 1.63e-3 ! transfer coefficient over ice
[3625]	74	REAL(wp), PARAMETER :: albo = 0.066 ! ocean albedo assumed to be constant
[888]	75
[2528]	76	! !!* Namelist namsbc_core : CORE bulk parameters
[4147]	77	LOGICAL :: ln_2m ! logical flag for height of air temp. and hum
	78	LOGICAL :: ln_taudif ! logical flag to use the "mean of stress module - module of mean stress" data
	79	REAL(wp) :: rn_pfac ! multiplication factor for precipitation
[4161]	80	REAL(wp) :: rn_efac ! multiplication factor for evaporation (clem)
	81	REAL(wp) :: rn_vfac ! multiplication factor for ice/ocean velocity in the calculation of wind stress (clem)
[4245]	82	LOGICAL :: ln_bulk2z ! logical flag for case where z(q,t) and z(u) are specified in the namelist
	83	REAL(wp) :: rn_zqt ! z(q,t) : height of humidity and temperature measurements
	84	REAL(wp) :: rn_zu ! z(u) : height of wind measurements
[888]	85
	86	!! * Substitutions
	87	# include "domzgr_substitute.h90"
	88	# include "vectopt_loop_substitute.h90"
	89	!!----------------------------------------------------------------------
[2528]	90	!! NEMO/OPA 3.3 , NEMO-consortium (2010)
[1156]	91	!! $Id$
[2528]	92	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
[888]	93	!!----------------------------------------------------------------------
	94	CONTAINS
	95
	96	SUBROUTINE sbc_blk_core( kt )
	97	!!---------------------------------------------------------------------
	98	!! * ROUTINE sbc_blk_core *
	99	!!
	100	!! ** Purpose : provide at each time step the surface ocean fluxes
	101	!! (momentum, heat, freshwater and runoff)
	102	!!
[1695]	103	!! ** Method : (1) READ each fluxes in NetCDF files:
	104	!! the 10m wind velocity (i-component) (m/s) at T-point
	105	!! the 10m wind velocity (j-component) (m/s) at T-point
[3625]	106	!! the 10m or 2m specific humidity ( % )
[1695]	107	!! the solar heat (W/m2)
	108	!! the Long wave (W/m2)
[3625]	109	!! the 10m or 2m air temperature (Kelvin)
[1695]	110	!! the total precipitation (rain+snow) (Kg/m2/s)
	111	!! the snow (solid prcipitation) (kg/m2/s)
[3625]	112	!! the tau diff associated to HF tau (N/m2) at T-point (ln_taudif=T)
[1695]	113	!! (2) CALL blk_oce_core
[888]	114	!!
	115	!! C A U T I O N : never mask the surface stress fields
[3625]	116	!! the stress is assumed to be in the (i,j) mesh referential
[888]	117	!!
	118	!! ** Action : defined at each time-step at the air-sea interface
[1695]	119	!! - utau, vtau i- and j-component of the wind stress
[3625]	120	!! - taum, wndm wind stress and 10m wind modules at T-point
	121	!! - qns, qsr non-solar and solar heat fluxes
	122	!! - emp upward mass flux (evapo. - precip.)
	123	!! - sfx salt flux due to freezing/melting (non-zero only if ice is present)
	124	!! (set in limsbc(_2).F90)
[888]	125	!!----------------------------------------------------------------------
[2715]	126	INTEGER, INTENT(in) :: kt ! ocean time step
[888]	127	!!
	128	INTEGER :: ierror ! return error code
[1200]	129	INTEGER :: ifpr ! dummy loop indice
[1705]	130	INTEGER :: jfld ! dummy loop arguments
[4147]	131	INTEGER :: ios ! Local integer output status for namelist read
[888]	132	!!
	133	CHARACTER(len=100) :: cn_dir ! Root directory for location of core files
	134	TYPE(FLD_N), DIMENSION(jpfld) :: slf_i ! array of namelist informations on the fields to read
[4161]	135	TYPE(FLD_N) :: sn_wndi, sn_wndj, sn_humi, sn_qsr ! informations about the fields to be read
	136	TYPE(FLD_N) :: sn_qlw , sn_tair, sn_prec, sn_snow ! " "
	137	TYPE(FLD_N) :: sn_tdif ! " "
	138	NAMELIST/namsbc_core/ cn_dir , ln_2m , ln_taudif, rn_pfac, rn_efac, rn_vfac, &
[1705]	139	& sn_wndi, sn_wndj, sn_humi , sn_qsr , &
[4245]	140	& sn_qlw , sn_tair, sn_prec , sn_snow, &
	141	& sn_tdif, rn_zqt , ln_bulk2z, rn_zu
[888]	142	!!---------------------------------------------------------------------
	143
	144	! ! ====================== !
	145	IF( kt == nit000 ) THEN ! First call kt=nit000 !
	146	! ! ====================== !
[1601]	147	!
[4147]	148	REWIND( numnam_ref ) ! Namelist namsbc_core in reference namelist : CORE bulk parameters
	149	READ ( numnam_ref, namsbc_core, IOSTAT = ios, ERR = 901)
	150	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_core in reference namelist', lwp )
	151
	152	REWIND( numnam_cfg ) ! Namelist namsbc_core in configuration namelist : CORE bulk parameters
	153	READ ( numnam_cfg, namsbc_core, IOSTAT = ios, ERR = 902 )
	154	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namsbc_core in configuration namelist', lwp )
	155
	156	WRITE ( numond, namsbc_core )
[2528]	157	! ! check: do we plan to use ln_dm2dc with non-daily forcing?
	158	IF( ln_dm2dc .AND. sn_qsr%nfreqh /= 24 ) &
	159	& CALL ctl_stop( 'sbc_blk_core: ln_dm2dc can be activated only with daily short-wave forcing' )
	160	IF( ln_dm2dc .AND. sn_qsr%ln_tint ) THEN
	161	CALL ctl_warn( 'sbc_blk_core: ln_dm2dc is taking care of the temporal interpolation of daily qsr', &
	162	& ' ==> We force time interpolation = .false. for qsr' )
	163	sn_qsr%ln_tint = .false.
	164	ENDIF
	165	! ! store namelist information in an array
[888]	166	slf_i(jp_wndi) = sn_wndi ; slf_i(jp_wndj) = sn_wndj
	167	slf_i(jp_qsr ) = sn_qsr ; slf_i(jp_qlw ) = sn_qlw
	168	slf_i(jp_tair) = sn_tair ; slf_i(jp_humi) = sn_humi
	169	slf_i(jp_prec) = sn_prec ; slf_i(jp_snow) = sn_snow
[1705]	170	slf_i(jp_tdif) = sn_tdif
[2528]	171	!
	172	lhftau = ln_taudif ! do we use HF tau information?
[1705]	173	jfld = jpfld - COUNT( (/.NOT. lhftau/) )
	174	!
[2528]	175	ALLOCATE( sf(jfld), STAT=ierror ) ! set sf structure
[2715]	176	IF( ierror > 0 ) CALL ctl_stop( 'STOP', 'sbc_blk_core: unable to allocate sf structure' )
[1705]	177	DO ifpr= 1, jfld
[2528]	178	ALLOCATE( sf(ifpr)%fnow(jpi,jpj,1) )
[2715]	179	IF( slf_i(ifpr)%ln_tint ) ALLOCATE( sf(ifpr)%fdta(jpi,jpj,1,2) )
[1200]	180	END DO
[2528]	181	! ! fill sf with slf_i and control print
	182	CALL fld_fill( sf, slf_i, cn_dir, 'sbc_blk_core', 'flux formulation for ocean surface boundary condition', 'namsbc_core' )
[1601]	183	!
[3625]	184	sfx(:,:) = 0._wp ! salt flux; zero unless ice is present (computed in limsbc(_2).F90)
	185	!
[888]	186	ENDIF
	187
[3625]	188	CALL fld_read( kt, nn_fsbc, sf ) ! input fields provided at the current time-step
[888]	189
[3625]	190	! ! compute the surface ocean fluxes using CORE bulk formulea
[3680]	191	IF( MOD( kt - 1, nn_fsbc ) == 0 ) CALL blk_oce_core( kt, sf, sst_m, ssu_m, ssv_m )
[3294]	192
[4306]	193	! If diurnal cycle is activated, compute a daily mean short waves flux for biogeochemistery
	194	IF( ltrcdm2dc ) CALL blk_bio_meanqsr
	195
[3294]	196	#if defined key_cice
	197	IF( MOD( kt - 1, nn_fsbc ) == 0 ) THEN
	198	qlw_ice(:,:,1) = sf(jp_qlw)%fnow(:,:,1)
	199	qsr_ice(:,:,1) = sf(jp_qsr)%fnow(:,:,1)
	200	tatm_ice(:,:) = sf(jp_tair)%fnow(:,:,1)
	201	qatm_ice(:,:) = sf(jp_humi)%fnow(:,:,1)
	202	tprecip(:,:) = sf(jp_prec)%fnow(:,:,1) * rn_pfac
	203	sprecip(:,:) = sf(jp_snow)%fnow(:,:,1) * rn_pfac
	204	wndi_ice(:,:) = sf(jp_wndi)%fnow(:,:,1)
	205	wndj_ice(:,:) = sf(jp_wndj)%fnow(:,:,1)
	206	ENDIF
	207	#endif
[2528]	208	!
[888]	209	END SUBROUTINE sbc_blk_core
	210
	211
[3680]	212	SUBROUTINE blk_oce_core( kt, sf, pst, pu, pv )
[888]	213	!!---------------------------------------------------------------------
	214	!! * ROUTINE blk_core *
	215	!!
	216	!! ** Purpose : provide the momentum, heat and freshwater fluxes at
	217	!! the ocean surface at each time step
	218	!!
	219	!! ** Method : CORE bulk formulea for the ocean using atmospheric
	220	!! fields read in sbc_read
	221	!!
	222	!! ** Outputs : - utau : i-component of the stress at U-point (N/m2)
	223	!! - vtau : j-component of the stress at V-point (N/m2)
[1695]	224	!! - taum : Wind stress module at T-point (N/m2)
	225	!! - wndm : Wind speed module at T-point (m/s)
[888]	226	!! - qsr : Solar heat flux over the ocean (W/m2)
	227	!! - qns : Non Solar heat flux over the ocean (W/m2)
	228	!! - evap : Evaporation over the ocean (kg/m2/s)
[3625]	229	!! - emp : evaporation minus precipitation (kg/m2/s)
[1242]	230	!!
	231	!! ** Nota : sf has to be a dummy argument for AGRIF on NEC
[888]	232	!!---------------------------------------------------------------------
[3680]	233	INTEGER , INTENT(in ) :: kt ! time step index
	234	TYPE(fld), INTENT(inout), DIMENSION(:) :: sf ! input data
	235	REAL(wp) , INTENT(in) , DIMENSION(:,:) :: pst ! surface temperature [Celcius]
	236	REAL(wp) , INTENT(in) , DIMENSION(:,:) :: pu ! surface current at U-point (i-component) [m/s]
	237	REAL(wp) , INTENT(in) , DIMENSION(:,:) :: pv ! surface current at V-point (j-component) [m/s]
[2715]	238	!
	239	INTEGER :: ji, jj ! dummy loop indices
	240	REAL(wp) :: zcoef_qsatw, zztmp ! local variable
[3294]	241	REAL(wp), DIMENSION(:,:), POINTER :: zwnd_i, zwnd_j ! wind speed components at T-point
	242	REAL(wp), DIMENSION(:,:), POINTER :: zqsatw ! specific humidity at pst
	243	REAL(wp), DIMENSION(:,:), POINTER :: zqlw, zqsb ! long wave and sensible heat fluxes
	244	REAL(wp), DIMENSION(:,:), POINTER :: zqla, zevap ! latent heat fluxes and evaporation
	245	REAL(wp), DIMENSION(:,:), POINTER :: Cd ! transfer coefficient for momentum (tau)
	246	REAL(wp), DIMENSION(:,:), POINTER :: Ch ! transfer coefficient for sensible heat (Q_sens)
	247	REAL(wp), DIMENSION(:,:), POINTER :: Ce ! tansfert coefficient for evaporation (Q_lat)
	248	REAL(wp), DIMENSION(:,:), POINTER :: zst ! surface temperature in Kelvin
	249	REAL(wp), DIMENSION(:,:), POINTER :: zt_zu ! air temperature at wind speed height
	250	REAL(wp), DIMENSION(:,:), POINTER :: zq_zu ! air spec. hum. at wind speed height
[888]	251	!!---------------------------------------------------------------------
[2715]	252	!
[3294]	253	IF( nn_timing == 1 ) CALL timing_start('blk_oce_core')
	254	!
	255	CALL wrk_alloc( jpi,jpj, zwnd_i, zwnd_j, zqsatw, zqlw, zqsb, zqla, zevap )
	256	CALL wrk_alloc( jpi,jpj, Cd, Ch, Ce, zst, zt_zu, zq_zu )
	257	!
[888]	258	! local scalars ( place there for vector optimisation purposes)
	259	zcoef_qsatw = 0.98 * 640380. / rhoa
	260
[3625]	261	zst(:,:) = pst(:,:) + rt0 ! convert SST from Celcius to Kelvin (and set minimum value far above 0 K)
[888]	262
	263	! ----------------------------------------------------------------------------- !
	264	! 0 Wind components and module at T-point relative to the moving ocean !
	265	! ----------------------------------------------------------------------------- !
[1000]	266
[888]	267	! ... components ( U10m - U_oce ) at T-point (unmasked)
	268	zwnd_i(:,:) = 0.e0
	269	zwnd_j(:,:) = 0.e0
[3680]	270	#if defined key_cyclone
	271	# if defined key_vectopt_loop
	272	!CDIR COLLAPSE
	273	# endif
	274	CALL wnd_cyc( kt, zwnd_i, zwnd_j ) ! add Manu !
	275	DO jj = 2, jpjm1
	276	DO ji = fs_2, fs_jpim1 ! vect. opt.
	277	sf(jp_wndi)%fnow(ji,jj,1) = sf(jp_wndi)%fnow(ji,jj,1) + zwnd_i(ji,jj)
	278	sf(jp_wndj)%fnow(ji,jj,1) = sf(jp_wndj)%fnow(ji,jj,1) + zwnd_j(ji,jj)
	279	END DO
	280	END DO
	281	#endif
[888]	282	#if defined key_vectopt_loop
	283	!CDIR COLLAPSE
	284	#endif
	285	DO jj = 2, jpjm1
	286	DO ji = fs_2, fs_jpim1 ! vect. opt.
[4161]	287	zwnd_i(ji,jj) = ( sf(jp_wndi)%fnow(ji,jj,1) - rn_vfac * 0.5 * ( pu(ji-1,jj ) + pu(ji,jj) ) )
	288	zwnd_j(ji,jj) = ( sf(jp_wndj)%fnow(ji,jj,1) - rn_vfac * 0.5 * ( pv(ji ,jj-1) + pv(ji,jj) ) )
[888]	289	END DO
	290	END DO
	291	CALL lbc_lnk( zwnd_i(:,:) , 'T', -1. )
	292	CALL lbc_lnk( zwnd_j(:,:) , 'T', -1. )
	293	! ... scalar wind ( = \| U10m - U_oce \| ) at T-point (masked)
	294	!CDIR NOVERRCHK
	295	!CDIR COLLAPSE
[1025]	296	wndm(:,:) = SQRT( zwnd_i(:,:) * zwnd_i(:,:) &
	297	& + zwnd_j(:,:) * zwnd_j(:,:) ) * tmask(:,:,1)
[888]	298
	299	! ----------------------------------------------------------------------------- !
	300	! I Radiative FLUXES !
	301	! ----------------------------------------------------------------------------- !
	302
[2528]	303	! ocean albedo assumed to be constant + modify now Qsr to include the diurnal cycle ! Short Wave
	304	zztmp = 1. - albo
	305	IF( ln_dm2dc ) THEN ; qsr(:,:) = zztmp * sbc_dcy( sf(jp_qsr)%fnow(:,:,1) ) * tmask(:,:,1)
	306	ELSE ; qsr(:,:) = zztmp * sf(jp_qsr)%fnow(:,:,1) * tmask(:,:,1)
	307	ENDIF
[888]	308	!CDIR COLLAPSE
[2528]	309	zqlw(:,:) = ( sf(jp_qlw)%fnow(:,:,1) - Stef * zst(:,:)zst(:,:)zst(:,:)zst(:,:) ) tmask(:,:,1) ! Long Wave
[888]	310	! ----------------------------------------------------------------------------- !
	311	! II Turbulent FLUXES !
	312	! ----------------------------------------------------------------------------- !
	313
	314	! ... specific humidity at SST and IST
	315	!CDIR NOVERRCHK
	316	!CDIR COLLAPSE
	317	zqsatw(:,:) = zcoef_qsatw * EXP( -5107.4 / zst(:,:) )
	318
	319	! ... NCAR Bulk formulae, computation of Cd, Ch, Ce at T-point :
	320	IF( ln_2m ) THEN
	321	!! If air temp. and spec. hum. are given at different height (2m) than wind (10m) :
[1025]	322	CALL TURB_CORE_2Z(2.,10., zst , sf(jp_tair)%fnow, &
	323	& zqsatw, sf(jp_humi)%fnow, wndm, &
	324	& Cd , Ch , Ce , &
	325	& zt_zu , zq_zu )
[4245]	326	ELSE IF( ln_bulk2z ) THEN
	327	!! If the height of the air temp./spec. hum. and wind are to be specified by hand :
	328	IF( rn_zqt == rn_zu ) THEN
	329	!! If air temp. and spec. hum. are at the same height as wind :
	330	CALL TURB_CORE_1Z( rn_zu, zst , sf(jp_tair)%fnow(:,:,1), &
	331	& zqsatw, sf(jp_humi)%fnow(:,:,1), wndm, &
	332	& Cd , Ch , Ce )
	333	ELSE
	334	!! If air temp. and spec. hum. are at a different height to wind :
	335	CALL TURB_CORE_2Z(rn_zqt, rn_zu , zst , sf(jp_tair)%fnow, &
	336	& zqsatw, sf(jp_humi)%fnow, wndm, &
	337	& Cd , Ch , Ce , &
	338	& zt_zu , zq_zu )
	339	ENDIF
[888]	340	ELSE
	341	!! If air temp. and spec. hum. are given at same height than wind (10m) :
	342	!gm bug? at the compiling phase, add a copy in temporary arrays... ==> check perf
[1025]	343	! CALL TURB_CORE_1Z( 10., zst (:,:), sf(jp_tair)%fnow(:,:), &
	344	! & zqsatw(:,:), sf(jp_humi)%fnow(:,:), wndm(:,:), &
	345	! & Cd (:,:), Ch (:,:), Ce (:,:) )
[888]	346	!gm bug
[2715]	347	! ARPDBG - this won't compile with gfortran. Fix but check performance
	348	! as per comment above.
	349	CALL TURB_CORE_1Z( 10., zst , sf(jp_tair)%fnow(:,:,1), &
	350	& zqsatw, sf(jp_humi)%fnow(:,:,1), wndm, &
[1025]	351	& Cd , Ch , Ce )
[888]	352	ENDIF
	353
[1695]	354	! ... tau module, i and j component
	355	DO jj = 1, jpj
	356	DO ji = 1, jpi
	357	zztmp = rhoa * wndm(ji,jj) * Cd(ji,jj)
	358	taum (ji,jj) = zztmp * wndm (ji,jj)
	359	zwnd_i(ji,jj) = zztmp * zwnd_i(ji,jj)
	360	zwnd_j(ji,jj) = zztmp * zwnd_j(ji,jj)
	361	END DO
	362	END DO
[1705]	363
	364	! ... add the HF tau contribution to the wind stress module?
	365	IF( lhftau ) THEN
	366	!CDIR COLLAPSE
[2528]	367	taum(:,:) = taum(:,:) + sf(jp_tdif)%fnow(:,:,1)
[1705]	368	ENDIF
	369	CALL iom_put( "taum_oce", taum ) ! output wind stress module
	370
[888]	371	! ... utau, vtau at U- and V_points, resp.
	372	! Note the use of 0.5*(2-umask) in order to unmask the stress along coastlines
	373	DO jj = 1, jpjm1
	374	DO ji = 1, fs_jpim1
	375	utau(ji,jj) = 0.5 * ( 2. - umask(ji,jj,1) ) * ( zwnd_i(ji,jj) + zwnd_i(ji+1,jj ) )
	376	vtau(ji,jj) = 0.5 * ( 2. - vmask(ji,jj,1) ) * ( zwnd_j(ji,jj) + zwnd_j(ji ,jj+1) )
	377	END DO
	378	END DO
	379	CALL lbc_lnk( utau(:,:), 'U', -1. )
	380	CALL lbc_lnk( vtau(:,:), 'V', -1. )
	381
	382	! Turbulent fluxes over ocean
	383	! -----------------------------
[4245]	384	IF( ln_2m .OR. ( ln_bulk2z .AND. rn_zqt /= rn_zu ) ) THEN
	385	! Values of temp. and hum. adjusted to height of wind must be used
[4161]	386	zevap(:,:) = rn_efac * MAX( 0.e0, rhoa Ce(:,:)( zqsatw(:,:) - zq_zu(:,:) ) * wndm(:,:) ) ! Evaporation
	387	zqsb (:,:) = rhoacpaCh(:,:)( zst (:,:) - zt_zu(:,:) ) wndm(:,:) ! Sensible Heat
[888]	388	ELSE
	389	!CDIR COLLAPSE
[4161]	390	zevap(:,:) = rn_efac * MAX( 0.e0, rhoa Ce(:,:)( zqsatw(:,:) - sf(jp_humi)%fnow(:,:,1) ) * wndm(:,:) ) ! Evaporation
[888]	391	!CDIR COLLAPSE
[2528]	392	zqsb (:,:) = rhoacpaCh(:,:)( zst (:,:) - sf(jp_tair)%fnow(:,:,1) ) wndm(:,:) ! Sensible Heat
[888]	393	ENDIF
	394	!CDIR COLLAPSE
	395	zqla (:,:) = Lv * zevap(:,:) ! Latent Heat
	396
	397	IF(ln_ctl) THEN
[1025]	398	CALL prt_ctl( tab2d_1=zqla , clinfo1=' blk_oce_core: zqla : ', tab2d_2=Ce , clinfo2=' Ce : ' )
	399	CALL prt_ctl( tab2d_1=zqsb , clinfo1=' blk_oce_core: zqsb : ', tab2d_2=Ch , clinfo2=' Ch : ' )
	400	CALL prt_ctl( tab2d_1=zqlw , clinfo1=' blk_oce_core: zqlw : ', tab2d_2=qsr, clinfo2=' qsr : ' )
	401	CALL prt_ctl( tab2d_1=zqsatw, clinfo1=' blk_oce_core: zqsatw : ', tab2d_2=zst, clinfo2=' zst : ' )
	402	CALL prt_ctl( tab2d_1=utau , clinfo1=' blk_oce_core: utau : ', mask1=umask, &
	403	& tab2d_2=vtau , clinfo2= ' vtau : ' , mask2=vmask )
	404	CALL prt_ctl( tab2d_1=wndm , clinfo1=' blk_oce_core: wndm : ')
	405	CALL prt_ctl( tab2d_1=zst , clinfo1=' blk_oce_core: zst : ')
[888]	406	ENDIF
	407
	408	! ----------------------------------------------------------------------------- !
	409	! III Total FLUXES !
	410	! ----------------------------------------------------------------------------- !
	411
	412	!CDIR COLLAPSE
[3625]	413	emp (:,:) = ( zevap(:,:) & ! mass flux (evap. - precip.)
	414	& - sf(jp_prec)%fnow(:,:,1) * rn_pfac ) * tmask(:,:,1)
[888]	415	!CDIR COLLAPSE
[3772]	416	qns(:,:) = zqlw(:,:) - zqsb(:,:) - zqla(:,:) & ! Downward Non Solar flux
	417	& - sf(jp_snow)%fnow(:,:,1) * rn_pfac * lfus & ! remove latent melting heat for solid precip
	418	& - zevap(:,:) * pst(:,:) * rcp & ! remove evap heat content at SST
	419	& + ( sf(jp_prec)%fnow(:,:,1) - sf(jp_snow)%fnow(:,:,1) ) * rn_pfac & ! add liquid precip heat content at Tair
	420	& * ( sf(jp_tair)%fnow(:,:,1) - rt0 ) * rcp &
	421	& + sf(jp_snow)%fnow(:,:,1) * rn_pfac & ! add solid precip heat content at min(Tair,Tsnow)
[3625]	422	& * ( MIN( sf(jp_tair)%fnow(:,:,1), rt0_snow ) - rt0 ) * cpic
[888]	423	!
[1482]	424	CALL iom_put( "qlw_oce", zqlw ) ! output downward longwave heat over the ocean
	425	CALL iom_put( "qsb_oce", - zqsb ) ! output downward sensible heat over the ocean
	426	CALL iom_put( "qla_oce", - zqla ) ! output downward latent heat over the ocean
[3625]	427	CALL iom_put( "qhc_oce", qns-zqlw+zqsb+zqla ) ! output downward heat content of E-P over the ocean
[1482]	428	CALL iom_put( "qns_oce", qns ) ! output downward non solar heat over the ocean
	429	!
	430	IF(ln_ctl) THEN
	431	CALL prt_ctl(tab2d_1=zqsb , clinfo1=' blk_oce_core: zqsb : ', tab2d_2=zqlw , clinfo2=' zqlw : ')
	432	CALL prt_ctl(tab2d_1=zqla , clinfo1=' blk_oce_core: zqla : ', tab2d_2=qsr , clinfo2=' qsr : ')
	433	CALL prt_ctl(tab2d_1=pst , clinfo1=' blk_oce_core: pst : ', tab2d_2=emp , clinfo2=' emp : ')
	434	CALL prt_ctl(tab2d_1=utau , clinfo1=' blk_oce_core: utau : ', mask1=umask, &
	435	& tab2d_2=vtau , clinfo2= ' vtau : ' , mask2=vmask )
	436	ENDIF
	437	!
[3294]	438	CALL wrk_dealloc( jpi,jpj, zwnd_i, zwnd_j, zqsatw, zqlw, zqsb, zqla, zevap )
	439	CALL wrk_dealloc( jpi,jpj, Cd, Ch, Ce, zst, zt_zu, zq_zu )
[2715]	440	!
[3294]	441	IF( nn_timing == 1 ) CALL timing_stop('blk_oce_core')
	442	!
[888]	443	END SUBROUTINE blk_oce_core
[4306]	444
	445	SUBROUTINE blk_bio_meanqsr
	446	!!---------------------------------------------------------------------
	447	!! *** ROUTINE blk_bio_meanqsr
	448	!!
	449	!! ** Purpose : provide daily qsr_mean for PISCES when
	450	!! analytic diurnal cycle is applied in physic
	451	!!
	452	!! ** Method : add part where there is no ice
	453	!!
	454	!!---------------------------------------------------------------------
	455	IF( nn_timing == 1 ) CALL timing_start('blk_bio_meanqsr')
	456
	457	qsr_mean(:,:) = (1. - albo ) * sf(jp_qsr)%fnow(:,:,1)
	458
	459	IF( nn_timing == 1 ) CALL timing_stop('blk_bio_meanqsr')
	460
	461	END SUBROUTINE blk_bio_meanqsr
	462
	463
	464	SUBROUTINE blk_ice_meanqsr(palb,p_qsr_mean,pdim)
	465	!!---------------------------------------------------------------------
	466	!!
	467	!! ** Purpose : provide the daily qsr_mean over sea_ice for PISCES when
	468	!! analytic diurnal cycle is applied in physic
	469	!!
	470	!! ** Method : compute qsr
	471	!!
	472	!!---------------------------------------------------------------------
	473	REAL(wp), DIMENSION(:,:,:), INTENT(in ) :: palb ! ice albedo (clear sky) (alb_ice_cs) [%]
	474	REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_qsr_mean ! solar heat flux over ice (T-point) [W/m2]
	475	INTEGER , INTENT(in ) :: pdim ! number of ice categories
	476	!!
	477	INTEGER :: ijpl ! number of ice categories (size of 3rd dim of input arrays)
	478	INTEGER :: ji, jj, jl ! dummy loop indices
	479	REAL(wp) :: zztmp ! temporary variable
	480	!!---------------------------------------------------------------------
	481	IF( nn_timing == 1 ) CALL timing_start('blk_ice_meanqsr')
	482	!
	483	ijpl = pdim ! number of ice categories
	484	zztmp = 1. / ( 1. - albo )
	485	! ! ========================== !
	486	DO jl = 1, ijpl ! Loop over ice categories !
	487	! ! ========================== !
	488	DO jj = 1 , jpj
	489	DO ji = 1, jpi
	490	p_qsr_mean(ji,jj,jl) = zztmp * ( 1. - palb(ji,jj,jl) ) * qsr_mean(ji,jj)
	491	END DO
	492	END DO
	493	END DO
	494	!
	495	IF( nn_timing == 1 ) CALL timing_stop('blk_ice_meanqsr')
	496	!
	497	END SUBROUTINE blk_ice_meanqsr
	498
[888]	499
	500	SUBROUTINE blk_ice_core( pst , pui , pvi , palb , &
	501	& p_taui, p_tauj, p_qns , p_qsr, &
	502	& p_qla , p_dqns, p_dqla, &
	503	& p_tpr , p_spr , &
[1270]	504	& p_fr1 , p_fr2 , cd_grid, pdim )
[888]	505	!!---------------------------------------------------------------------
	506	!! * ROUTINE blk_ice_core *
	507	!!
	508	!! ** Purpose : provide the surface boundary condition over sea-ice
	509	!!
	510	!! ** Method : compute momentum, heat and freshwater exchanged
	511	!! between atmosphere and sea-ice using CORE bulk
	512	!! formulea, ice variables and read atmmospheric fields.
	513	!! NB: ice drag coefficient is assumed to be a constant
	514	!!
	515	!! caution : the net upward water flux has with mm/day unit
	516	!!---------------------------------------------------------------------
[2715]	517	REAL(wp), DIMENSION(:,:,:), INTENT(in ) :: pst ! ice surface temperature (>0, =rt0 over land) [Kelvin]
	518	REAL(wp), DIMENSION(:,:) , INTENT(in ) :: pui ! ice surface velocity (i- and i- components [m/s]
	519	REAL(wp), DIMENSION(:,:) , INTENT(in ) :: pvi ! at I-point (B-grid) or U & V-point (C-grid)
	520	REAL(wp), DIMENSION(:,:,:), INTENT(in ) :: palb ! ice albedo (clear sky) (alb_ice_cs) [%]
	521	REAL(wp), DIMENSION(:,:) , INTENT( out) :: p_taui ! i- & j-components of surface ice stress [N/m2]
	522	REAL(wp), DIMENSION(:,:) , INTENT( out) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
	523	REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_qns ! non solar heat flux over ice (T-point) [W/m2]
	524	REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_qsr ! solar heat flux over ice (T-point) [W/m2]
	525	REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_qla ! latent heat flux over ice (T-point) [W/m2]
	526	REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_dqns ! non solar heat sensistivity (T-point) [W/m2]
	527	REAL(wp), DIMENSION(:,:,:), INTENT( out) :: p_dqla ! latent heat sensistivity (T-point) [W/m2]
	528	REAL(wp), DIMENSION(:,:) , INTENT( out) :: p_tpr ! total precipitation (T-point) [Kg/m2/s]
	529	REAL(wp), DIMENSION(:,:) , INTENT( out) :: p_spr ! solid precipitation (T-point) [Kg/m2/s]
	530	REAL(wp), DIMENSION(:,:) , INTENT( out) :: p_fr1 ! 1sr fraction of qsr penetration in ice (T-point) [%]
	531	REAL(wp), DIMENSION(:,:) , INTENT( out) :: p_fr2 ! 2nd fraction of qsr penetration in ice (T-point) [%]
	532	CHARACTER(len=1) , INTENT(in ) :: cd_grid ! ice grid ( C or B-grid)
	533	INTEGER , INTENT(in ) :: pdim ! number of ice categories
	534	!!
[888]	535	INTEGER :: ji, jj, jl ! dummy loop indices
	536	INTEGER :: ijpl ! number of ice categories (size of 3rd dim of input arrays)
	537	REAL(wp) :: zst2, zst3
	538	REAL(wp) :: zcoef_wnorm, zcoef_wnorm2, zcoef_dqlw, zcoef_dqla, zcoef_dqsb
[2528]	539	REAL(wp) :: zztmp ! temporary variable
[888]	540	REAL(wp) :: zcoef_frca ! fractional cloud amount
	541	REAL(wp) :: zwnorm_f, zwndi_f , zwndj_f ! relative wind module and components at F-point
	542	REAL(wp) :: zwndi_t , zwndj_t ! relative wind components at T-point
[2715]	543	!!
[3294]	544	REAL(wp), DIMENSION(:,:) , POINTER :: z_wnds_t ! wind speed ( = \| U10m - U_ice \| ) at T-point
[2715]	545	REAL(wp), DIMENSION(:,:,:), POINTER :: z_qlw ! long wave heat flux over ice
	546	REAL(wp), DIMENSION(:,:,:), POINTER :: z_qsb ! sensible heat flux over ice
	547	REAL(wp), DIMENSION(:,:,:), POINTER :: z_dqlw ! long wave heat sensitivity over ice
	548	REAL(wp), DIMENSION(:,:,:), POINTER :: z_dqsb ! sensible heat sensitivity over ice
[888]	549	!!---------------------------------------------------------------------
[3294]	550	!
	551	IF( nn_timing == 1 ) CALL timing_start('blk_ice_core')
	552	!
	553	CALL wrk_alloc( jpi,jpj, z_wnds_t )
	554	CALL wrk_alloc( jpi,jpj,pdim, z_qlw, z_qsb, z_dqlw, z_dqsb )
[888]	555
[1270]	556	ijpl = pdim ! number of ice categories
[888]	557
	558	! local scalars ( place there for vector optimisation purposes)
[2528]	559	zcoef_wnorm = rhoa * Cice
[888]	560	zcoef_wnorm2 = rhoa * Cice * 0.5
[2528]	561	zcoef_dqlw = 4.0 * 0.95 * Stef
	562	zcoef_dqla = -Ls * Cice * 11637800. * (-5897.8)
	563	zcoef_dqsb = rhoa * cpa * Cice
	564	zcoef_frca = 1.0 - 0.3
[888]	565
	566	!!gm brutal....
	567	z_wnds_t(:,:) = 0.e0
	568	p_taui (:,:) = 0.e0
	569	p_tauj (:,:) = 0.e0
	570	!!gm end
	571
[2777]	572	#if defined key_lim3
	573	tatm_ice(:,:) = sf(jp_tair)%fnow(:,:,1) ! LIM3: make Tair available in sea-ice. WARNING allocated after call to ice_init
	574	#endif
[888]	575	! ----------------------------------------------------------------------------- !
	576	! Wind components and module relative to the moving ocean ( U10m - U_ice ) !
	577	! ----------------------------------------------------------------------------- !
	578	SELECT CASE( cd_grid )
[2528]	579	CASE( 'I' ) ! B-grid ice dynamics : I-point (i.e. F-point with sea-ice indexation)
[888]	580	! and scalar wind at T-point ( = \| U10m - U_ice \| ) (masked)
	581	!CDIR NOVERRCHK
	582	DO jj = 2, jpjm1
[2528]	583	DO ji = 2, jpim1 ! B grid : NO vector opt
[888]	584	! ... scalar wind at I-point (fld being at T-point)
[2528]	585	zwndi_f = 0.25 * ( sf(jp_wndi)%fnow(ji-1,jj ,1) + sf(jp_wndi)%fnow(ji ,jj ,1) &
[4161]	586	& + sf(jp_wndi)%fnow(ji-1,jj-1,1) + sf(jp_wndi)%fnow(ji ,jj-1,1) ) - rn_vfac * pui(ji,jj)
[2528]	587	zwndj_f = 0.25 * ( sf(jp_wndj)%fnow(ji-1,jj ,1) + sf(jp_wndj)%fnow(ji ,jj ,1) &
[4161]	588	& + sf(jp_wndj)%fnow(ji-1,jj-1,1) + sf(jp_wndj)%fnow(ji ,jj-1,1) ) - rn_vfac * pvi(ji,jj)
[888]	589	zwnorm_f = zcoef_wnorm * SQRT( zwndi_f * zwndi_f + zwndj_f * zwndj_f )
	590	! ... ice stress at I-point
	591	p_taui(ji,jj) = zwnorm_f * zwndi_f
	592	p_tauj(ji,jj) = zwnorm_f * zwndj_f
	593	! ... scalar wind at T-point (fld being at T-point)
[4161]	594	zwndi_t = sf(jp_wndi)%fnow(ji,jj,1) - rn_vfac * 0.25 * ( pui(ji,jj+1) + pui(ji+1,jj+1) &
	595	& + pui(ji,jj ) + pui(ji+1,jj ) )
	596	zwndj_t = sf(jp_wndj)%fnow(ji,jj,1) - rn_vfac * 0.25 * ( pvi(ji,jj+1) + pvi(ji+1,jj+1) &
	597	& + pvi(ji,jj ) + pvi(ji+1,jj ) )
[888]	598	z_wnds_t(ji,jj) = SQRT( zwndi_t * zwndi_t + zwndj_t * zwndj_t ) * tmask(ji,jj,1)
	599	END DO
	600	END DO
	601	CALL lbc_lnk( p_taui , 'I', -1. )
	602	CALL lbc_lnk( p_tauj , 'I', -1. )
	603	CALL lbc_lnk( z_wnds_t, 'T', 1. )
	604	!
	605	CASE( 'C' ) ! C-grid ice dynamics : U & V-points (same as ocean)
	606	#if defined key_vectopt_loop
	607	!CDIR COLLAPSE
	608	#endif
	609	DO jj = 2, jpj
	610	DO ji = fs_2, jpi ! vect. opt.
[4161]	611	zwndi_t = ( sf(jp_wndi)%fnow(ji,jj,1) - rn_vfac * 0.5 * ( pui(ji-1,jj ) + pui(ji,jj) ) )
	612	zwndj_t = ( sf(jp_wndj)%fnow(ji,jj,1) - rn_vfac * 0.5 * ( pvi(ji ,jj-1) + pvi(ji,jj) ) )
[888]	613	z_wnds_t(ji,jj) = SQRT( zwndi_t * zwndi_t + zwndj_t * zwndj_t ) * tmask(ji,jj,1)
	614	END DO
	615	END DO
	616	#if defined key_vectopt_loop
	617	!CDIR COLLAPSE
	618	#endif
	619	DO jj = 2, jpjm1
	620	DO ji = fs_2, fs_jpim1 ! vect. opt.
[2528]	621	p_taui(ji,jj) = zcoef_wnorm2 * ( z_wnds_t(ji+1,jj ) + z_wnds_t(ji,jj) ) &
[4161]	622	& * ( 0.5 * (sf(jp_wndi)%fnow(ji+1,jj,1) + sf(jp_wndi)%fnow(ji,jj,1) ) - rn_vfac * pui(ji,jj) )
[2528]	623	p_tauj(ji,jj) = zcoef_wnorm2 * ( z_wnds_t(ji,jj+1 ) + z_wnds_t(ji,jj) ) &
[4161]	624	& * ( 0.5 * (sf(jp_wndj)%fnow(ji,jj+1,1) + sf(jp_wndj)%fnow(ji,jj,1) ) - rn_vfac * pvi(ji,jj) )
[888]	625	END DO
	626	END DO
	627	CALL lbc_lnk( p_taui , 'U', -1. )
	628	CALL lbc_lnk( p_tauj , 'V', -1. )
	629	CALL lbc_lnk( z_wnds_t, 'T', 1. )
	630	!
	631	END SELECT
	632
[2528]	633	zztmp = 1. / ( 1. - albo )
[888]	634	! ! ========================== !
	635	DO jl = 1, ijpl ! Loop over ice categories !
	636	! ! ========================== !
	637	!CDIR NOVERRCHK
	638	!CDIR COLLAPSE
	639	DO jj = 1 , jpj
	640	!CDIR NOVERRCHK
	641	DO ji = 1, jpi
	642	! ----------------------------!
	643	! I Radiative FLUXES !
	644	! ----------------------------!
	645	zst2 = pst(ji,jj,jl) * pst(ji,jj,jl)
	646	zst3 = pst(ji,jj,jl) * zst2
	647	! Short Wave (sw)
[2528]	648	p_qsr(ji,jj,jl) = zztmp * ( 1. - palb(ji,jj,jl) ) * qsr(ji,jj)
[888]	649	! Long Wave (lw)
[4161]	650	! iovino
	651	IF( ff(ji,jj) .GT. 0._wp ) THEN
	652	z_qlw(ji,jj,jl) = ( 0.95 * sf(jp_qlw)%fnow(ji,jj,1) - Stef * pst(ji,jj,jl) * zst3 ) * tmask(ji,jj,1)
	653	ELSE
	654	z_qlw(ji,jj,jl) = 0.95 * ( sf(jp_qlw)%fnow(ji,jj,1) - Stef * pst(ji,jj,jl) * zst3 ) * tmask(ji,jj,1)
	655	ENDIF
[888]	656	! lw sensitivity
	657	z_dqlw(ji,jj,jl) = zcoef_dqlw * zst3
	658
	659	! ----------------------------!
	660	! II Turbulent FLUXES !
	661	! ----------------------------!
	662
	663	! ... turbulent heat fluxes
	664	! Sensible Heat
[2528]	665	z_qsb(ji,jj,jl) = rhoa * cpa * Cice * z_wnds_t(ji,jj) * ( pst(ji,jj,jl) - sf(jp_tair)%fnow(ji,jj,1) )
[888]	666	! Latent Heat
[4161]	667	p_qla(ji,jj,jl) = rn_efac * MAX( 0.e0, rhoa * Ls * Cice * z_wnds_t(ji,jj) &
	668	& * ( 11637800. * EXP( -5897.8 / pst(ji,jj,jl) ) / rhoa - sf(jp_humi)%fnow(ji,jj,1) ) )
[888]	669	! Latent heat sensitivity for ice (Dqla/Dt)
[4161]	670	p_dqla(ji,jj,jl) = rn_efac * zcoef_dqla * z_wnds_t(ji,jj) / ( zst2 ) * EXP( -5897.8 / pst(ji,jj,jl) )
[888]	671	! Sensible heat sensitivity (Dqsb_ice/Dtn_ice)
	672	z_dqsb(ji,jj,jl) = zcoef_dqsb * z_wnds_t(ji,jj)
	673
	674	! ----------------------------!
	675	! III Total FLUXES !
	676	! ----------------------------!
	677	! Downward Non Solar flux
	678	p_qns (ji,jj,jl) = z_qlw (ji,jj,jl) - z_qsb (ji,jj,jl) - p_qla (ji,jj,jl)
	679	! Total non solar heat flux sensitivity for ice
	680	p_dqns(ji,jj,jl) = - ( z_dqlw(ji,jj,jl) + z_dqsb(ji,jj,jl) + p_dqla(ji,jj,jl) )
	681	END DO
	682	!
	683	END DO
	684	!
	685	END DO
	686	!
	687	!--------------------------------------------------------------------
	688	! FRACTIONs of net shortwave radiation which is not absorbed in the
	689	! thin surface layer and penetrates inside the ice cover
	690	! ( Maykut and Untersteiner, 1971 ; Ebert and Curry, 1993 )
	691
	692	!CDIR COLLAPSE
	693	p_fr1(:,:) = ( 0.18 * ( 1.0 - zcoef_frca ) + 0.35 * zcoef_frca )
	694	!CDIR COLLAPSE
	695	p_fr2(:,:) = ( 0.82 * ( 1.0 - zcoef_frca ) + 0.65 * zcoef_frca )
	696
	697	!CDIR COLLAPSE
[2528]	698	p_tpr(:,:) = sf(jp_prec)%fnow(:,:,1) * rn_pfac ! total precipitation [kg/m2/s]
[888]	699	!CDIR COLLAPSE
[2528]	700	p_spr(:,:) = sf(jp_snow)%fnow(:,:,1) * rn_pfac ! solid precipitation [kg/m2/s]
[4161]	701	CALL iom_put( 'snowpre', p_spr * 86400. ) ! Snow precipitation
	702	CALL iom_put( 'precip', p_tpr * 86400. ) ! Total precipitation
[888]	703	!
	704	IF(ln_ctl) THEN
	705	CALL prt_ctl(tab3d_1=p_qla , clinfo1=' blk_ice_core: p_qla : ', tab3d_2=z_qsb , clinfo2=' z_qsb : ', kdim=ijpl)
	706	CALL prt_ctl(tab3d_1=z_qlw , clinfo1=' blk_ice_core: z_qlw : ', tab3d_2=p_dqla , clinfo2=' p_dqla : ', kdim=ijpl)
	707	CALL prt_ctl(tab3d_1=z_dqsb , clinfo1=' blk_ice_core: z_dqsb : ', tab3d_2=z_dqlw , clinfo2=' z_dqlw : ', kdim=ijpl)
	708	CALL prt_ctl(tab3d_1=p_dqns , clinfo1=' blk_ice_core: p_dqns : ', tab3d_2=p_qsr , clinfo2=' p_qsr : ', kdim=ijpl)
	709	CALL prt_ctl(tab3d_1=pst , clinfo1=' blk_ice_core: pst : ', tab3d_2=p_qns , clinfo2=' p_qns : ', kdim=ijpl)
	710	CALL prt_ctl(tab2d_1=p_tpr , clinfo1=' blk_ice_core: p_tpr : ', tab2d_2=p_spr , clinfo2=' p_spr : ')
	711	CALL prt_ctl(tab2d_1=p_taui , clinfo1=' blk_ice_core: p_taui : ', tab2d_2=p_tauj , clinfo2=' p_tauj : ')
	712	CALL prt_ctl(tab2d_1=z_wnds_t, clinfo1=' blk_ice_core: z_wnds_t : ')
	713	ENDIF
	714
[3294]	715	CALL wrk_dealloc( jpi,jpj, z_wnds_t )
	716	CALL wrk_dealloc( jpi,jpj,pdim, z_qlw, z_qsb, z_dqlw, z_dqsb )
[2715]	717	!
[3294]	718	IF( nn_timing == 1 ) CALL timing_stop('blk_ice_core')
	719	!
[888]	720	END SUBROUTINE blk_ice_core
	721
	722
	723	SUBROUTINE TURB_CORE_1Z(zu, sst, T_a, q_sat, q_a, &
[2715]	724	& dU , Cd , Ch , Ce )
[888]	725	!!----------------------------------------------------------------------
	726	!! * ROUTINE turb_core *
	727	!!
	728	!! ** Purpose : Computes turbulent transfert coefficients of surface
	729	!! fluxes according to Large & Yeager (2004)
	730	!!
	731	!! ** Method : I N E R T I A L D I S S I P A T I O N M E T H O D
	732	!! Momentum, Latent and sensible heat exchange coefficients
	733	!! Caution: this procedure should only be used in cases when air
	734	!! temperature (T_air), air specific humidity (q_air) and wind (dU)
	735	!! are provided at the same height 'zzu'!
	736	!!
[2715]	737	!! References : Large & Yeager, 2004 : ???
[888]	738	!!----------------------------------------------------------------------
[2715]	739	REAL(wp) , INTENT(in ) :: zu ! altitude of wind measurement [m]
	740	REAL(wp), DIMENSION(:,:), INTENT(in ) :: sst ! sea surface temperature [Kelvin]
	741	REAL(wp), DIMENSION(:,:), INTENT(in ) :: T_a ! potential air temperature [Kelvin]
	742	REAL(wp), DIMENSION(:,:), INTENT(in ) :: q_sat ! sea surface specific humidity [kg/kg]
	743	REAL(wp), DIMENSION(:,:), INTENT(in ) :: q_a ! specific air humidity [kg/kg]
	744	REAL(wp), DIMENSION(:,:), INTENT(in ) :: dU ! wind module \|U(zu)-U(0)\| [m/s]
	745	REAL(wp), DIMENSION(:,:), INTENT( out) :: Cd ! transfert coefficient for momentum (tau)
	746	REAL(wp), DIMENSION(:,:), INTENT( out) :: Ch ! transfert coefficient for temperature (Q_sens)
	747	REAL(wp), DIMENSION(:,:), INTENT( out) :: Ce ! transfert coefficient for evaporation (Q_lat)
[888]	748	!!
	749	INTEGER :: j_itt
[2715]	750	INTEGER , PARAMETER :: nb_itt = 3
	751	REAL(wp), PARAMETER :: grav = 9.8 ! gravity
	752	REAL(wp), PARAMETER :: kappa = 0.4 ! von Karman s constant
[3294]	753
	754	REAL(wp), DIMENSION(:,:), POINTER :: dU10 ! dU [m/s]
	755	REAL(wp), DIMENSION(:,:), POINTER :: dT ! air/sea temperature differeence [K]
	756	REAL(wp), DIMENSION(:,:), POINTER :: dq ! air/sea humidity difference [K]
	757	REAL(wp), DIMENSION(:,:), POINTER :: Cd_n10 ! 10m neutral drag coefficient
	758	REAL(wp), DIMENSION(:,:), POINTER :: Ce_n10 ! 10m neutral latent coefficient
	759	REAL(wp), DIMENSION(:,:), POINTER :: Ch_n10 ! 10m neutral sensible coefficient
	760	REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd_n10 ! root square of Cd_n10
	761	REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd ! root square of Cd
	762	REAL(wp), DIMENSION(:,:), POINTER :: T_vpot ! virtual potential temperature [K]
	763	REAL(wp), DIMENSION(:,:), POINTER :: T_star ! turbulent scale of tem. fluct.
	764	REAL(wp), DIMENSION(:,:), POINTER :: q_star ! turbulent humidity of temp. fluct.
	765	REAL(wp), DIMENSION(:,:), POINTER :: U_star ! turb. scale of velocity fluct.
	766	REAL(wp), DIMENSION(:,:), POINTER :: L ! Monin-Obukov length [m]
	767	REAL(wp), DIMENSION(:,:), POINTER :: zeta ! stability parameter at height zu
	768	REAL(wp), DIMENSION(:,:), POINTER :: U_n10 ! neutral wind velocity at 10m [m]
	769	REAL(wp), DIMENSION(:,:), POINTER :: xlogt, xct, zpsi_h, zpsi_m
	770
	771	INTEGER , DIMENSION(:,:), POINTER :: stab ! 1st guess stability test integer
[2715]	772	!!----------------------------------------------------------------------
[3294]	773	!
	774	IF( nn_timing == 1 ) CALL timing_start('TURB_CORE_1Z')
	775	!
	776	CALL wrk_alloc( jpi,jpj, stab ) ! integer
	777	CALL wrk_alloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L )
	778	CALL wrk_alloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta, U_n10, xlogt, xct, zpsi_h, zpsi_m )
[888]	779
	780	!! * Start
	781	!! Air/sea differences
	782	dU10 = max(0.5, dU) ! we don't want to fall under 0.5 m/s
	783	dT = T_a - sst ! assuming that T_a is allready the potential temp. at zzu
	784	dq = q_a - q_sat
	785	!!
	786	!! Virtual potential temperature
	787	T_vpot = T_a(1. + 0.608q_a)
	788	!!
	789	!! Neutral Drag Coefficient
	790	stab = 0.5 + sign(0.5,dT) ! stable : stab = 1 ; unstable : stab = 0
[3294]	791	IF ( ln_cdgw ) THEN
	792	cdn_wave = cdn_wave - rsmall*(tmask(:,:,1)-1)
	793	Cd_n10(:,:) = cdn_wave
	794	ELSE
	795	Cd_n10 = 1E-3 * ( 2.7/dU10 + 0.142 + dU10/13.09 ) ! L & Y eq. (6a)
	796	ENDIF
[888]	797	sqrt_Cd_n10 = sqrt(Cd_n10)
	798	Ce_n10 = 1E-3 * ( 34.6 * sqrt_Cd_n10 ) ! L & Y eq. (6b)
	799	Ch_n10 = 1E-3sqrt_Cd_n10(18stab + 32.7(1-stab)) ! L & Y eq. (6c), (6d)
	800	!!
	801	!! Initializing transfert coefficients with their first guess neutral equivalents :
	802	Cd = Cd_n10 ; Ce = Ce_n10 ; Ch = Ch_n10 ; sqrt_Cd = sqrt(Cd)
	803
	804	!! * Now starting iteration loop
	805	DO j_itt=1, nb_itt
	806	!! Turbulent scales :
	807	U_star = sqrt_Cd*dU10 ! L & Y eq. (7a)
	808	T_star = Ch/sqrt_Cd*dT ! L & Y eq. (7b)
	809	q_star = Ce/sqrt_Cd*dq ! L & Y eq. (7c)
	810
	811	!! Estimate the Monin-Obukov length :
	812	L = (U_star*2)/( kappagrav*(T_star/T_vpot + q_star/(q_a + 1./0.608)) )
	813
	814	!! Stability parameters :
[2715]	815	zeta = zu/L ; zeta = sign( min(abs(zeta),10.0), zeta )
	816	zpsi_h = psi_h(zeta)
	817	zpsi_m = psi_m(zeta)
[888]	818
[3294]	819	IF ( ln_cdgw ) THEN
	820	sqrt_Cd=kappa/((kappa/sqrt_Cd_n10) - zpsi_m) ; Cd=sqrt_Cd*sqrt_Cd;
	821	ELSE
	822	!! Shifting the wind speed to 10m and neutral stability :
	823	U_n10 = dU101./(1. + sqrt_Cd_n10/kappa(log(zu/10.) - zpsi_m)) ! L & Y eq. (9a)
[888]	824
[3294]	825	!! Updating the neutral 10m transfer coefficients :
	826	Cd_n10 = 1E-3 * (2.7/U_n10 + 0.142 + U_n10/13.09) ! L & Y eq. (6a)
	827	sqrt_Cd_n10 = sqrt(Cd_n10)
	828	Ce_n10 = 1E-3 * (34.6 * sqrt_Cd_n10) ! L & Y eq. (6b)
	829	stab = 0.5 + sign(0.5,zeta)
	830	Ch_n10 = 1E-3sqrt_Cd_n10(18.stab + 32.7(1-stab)) ! L & Y eq. (6c), (6d)
[888]	831
[3294]	832	!! Shifting the neutral 10m transfer coefficients to ( zu , zeta ) :
	833	!!
	834	xct = 1. + sqrt_Cd_n10/kappa*(log(zu/10) - zpsi_m)
	835	Cd = Cd_n10/(xct*xct) ; sqrt_Cd = sqrt(Cd)
	836	ENDIF
[888]	837	!!
	838	xlogt = log(zu/10.) - zpsi_h
	839	!!
	840	xct = 1. + Ch_n10*xlogt/kappa/sqrt_Cd_n10
	841	Ch = Ch_n10*sqrt_Cd/sqrt_Cd_n10/xct
	842	!!
	843	xct = 1. + Ce_n10*xlogt/kappa/sqrt_Cd_n10
	844	Ce = Ce_n10*sqrt_Cd/sqrt_Cd_n10/xct
	845	!!
	846	END DO
	847	!!
[3294]	848	CALL wrk_dealloc( jpi,jpj, stab ) ! integer
	849	CALL wrk_dealloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L )
	850	CALL wrk_dealloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta, U_n10, xlogt, xct, zpsi_h, zpsi_m )
[2715]	851	!
[3294]	852	IF( nn_timing == 1 ) CALL timing_stop('TURB_CORE_1Z')
	853	!
[888]	854	END SUBROUTINE TURB_CORE_1Z
	855
	856
	857	SUBROUTINE TURB_CORE_2Z(zt, zu, sst, T_zt, q_sat, q_zt, dU, Cd, Ch, Ce, T_zu, q_zu)
	858	!!----------------------------------------------------------------------
	859	!! * ROUTINE turb_core *
	860	!!
	861	!! ** Purpose : Computes turbulent transfert coefficients of surface
	862	!! fluxes according to Large & Yeager (2004).
	863	!!
	864	!! ** Method : I N E R T I A L D I S S I P A T I O N M E T H O D
	865	!! Momentum, Latent and sensible heat exchange coefficients
	866	!! Caution: this procedure should only be used in cases when air
[4245]	867	!! temperature (T_air) and air specific humidity (q_air) are at a
	868	!! different height to wind (dU).
[888]	869	!!
[2715]	870	!! References : Large & Yeager, 2004 : ???
[888]	871	!!----------------------------------------------------------------------
[3294]	872	REAL(wp), INTENT(in ) :: zt ! height for T_zt and q_zt [m]
	873	REAL(wp), INTENT(in ) :: zu ! height for dU [m]
	874	REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: sst ! sea surface temperature [Kelvin]
	875	REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: T_zt ! potential air temperature [Kelvin]
	876	REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: q_sat ! sea surface specific humidity [kg/kg]
	877	REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: q_zt ! specific air humidity [kg/kg]
	878	REAL(wp), INTENT(in ), DIMENSION(jpi,jpj) :: dU ! relative wind module \|U(zu)-U(0)\| [m/s]
	879	REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Cd ! transfer coefficient for momentum (tau)
	880	REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Ch ! transfer coefficient for sensible heat (Q_sens)
	881	REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: Ce ! transfert coefficient for evaporation (Q_lat)
	882	REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: T_zu ! air temp. shifted at zu [K]
	883	REAL(wp), INTENT( out), DIMENSION(jpi,jpj) :: q_zu ! spec. hum. shifted at zu [kg/kg]
[888]	884
	885	INTEGER :: j_itt
[4245]	886	INTEGER , PARAMETER :: nb_itt = 5 ! number of itterations
[3294]	887	REAL(wp), PARAMETER :: grav = 9.8 ! gravity
	888	REAL(wp), PARAMETER :: kappa = 0.4 ! von Karman's constant
	889
	890	REAL(wp), DIMENSION(:,:), POINTER :: dU10 ! dU [m/s]
	891	REAL(wp), DIMENSION(:,:), POINTER :: dT ! air/sea temperature differeence [K]
	892	REAL(wp), DIMENSION(:,:), POINTER :: dq ! air/sea humidity difference [K]
	893	REAL(wp), DIMENSION(:,:), POINTER :: Cd_n10 ! 10m neutral drag coefficient
	894	REAL(wp), DIMENSION(:,:), POINTER :: Ce_n10 ! 10m neutral latent coefficient
	895	REAL(wp), DIMENSION(:,:), POINTER :: Ch_n10 ! 10m neutral sensible coefficient
	896	REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd_n10 ! root square of Cd_n10
	897	REAL(wp), DIMENSION(:,:), POINTER :: sqrt_Cd ! root square of Cd
	898	REAL(wp), DIMENSION(:,:), POINTER :: T_vpot ! virtual potential temperature [K]
	899	REAL(wp), DIMENSION(:,:), POINTER :: T_star ! turbulent scale of tem. fluct.
	900	REAL(wp), DIMENSION(:,:), POINTER :: q_star ! turbulent humidity of temp. fluct.
	901	REAL(wp), DIMENSION(:,:), POINTER :: U_star ! turb. scale of velocity fluct.
	902	REAL(wp), DIMENSION(:,:), POINTER :: L ! Monin-Obukov length [m]
	903	REAL(wp), DIMENSION(:,:), POINTER :: zeta_u ! stability parameter at height zu
	904	REAL(wp), DIMENSION(:,:), POINTER :: zeta_t ! stability parameter at height zt
	905	REAL(wp), DIMENSION(:,:), POINTER :: U_n10 ! neutral wind velocity at 10m [m]
	906	REAL(wp), DIMENSION(:,:), POINTER :: xlogt, xct, zpsi_hu, zpsi_ht, zpsi_m
	907
	908	INTEGER , DIMENSION(:,:), POINTER :: stab ! 1st stability test integer
[2528]	909	!!----------------------------------------------------------------------
[3294]	910	!
	911	IF( nn_timing == 1 ) CALL timing_start('TURB_CORE_2Z')
	912	!
	913	CALL wrk_alloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L )
	914	CALL wrk_alloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta_u, zeta_t, U_n10 )
	915	CALL wrk_alloc( jpi,jpj, xlogt, xct, zpsi_hu, zpsi_ht, zpsi_m )
	916	CALL wrk_alloc( jpi,jpj, stab ) ! interger
[888]	917
	918	!! Initial air/sea differences
	919	dU10 = max(0.5, dU) ! we don't want to fall under 0.5 m/s
	920	dT = T_zt - sst
	921	dq = q_zt - q_sat
	922
	923	!! Neutral Drag Coefficient :
	924	stab = 0.5 + sign(0.5,dT) ! stab = 1 if dT > 0 -> STABLE
[3294]	925	IF( ln_cdgw ) THEN
	926	cdn_wave = cdn_wave - rsmall*(tmask(:,:,1)-1)
	927	Cd_n10(:,:) = cdn_wave
	928	ELSE
	929	Cd_n10 = 1E-3*( 2.7/dU10 + 0.142 + dU10/13.09 )
	930	ENDIF
[888]	931	sqrt_Cd_n10 = sqrt(Cd_n10)
	932	Ce_n10 = 1E-3( 34.6 sqrt_Cd_n10 )
	933	Ch_n10 = 1E-3sqrt_Cd_n10(18stab + 32.7(1 - stab))
	934
	935	!! Initializing transf. coeff. with their first guess neutral equivalents :
	936	Cd = Cd_n10 ; Ce = Ce_n10 ; Ch = Ch_n10 ; sqrt_Cd = sqrt(Cd)
	937
	938	!! Initializing z_u values with z_t values :
	939	T_zu = T_zt ; q_zu = q_zt
	940
	941	!! * Now starting iteration loop
	942	DO j_itt=1, nb_itt
	943	dT = T_zu - sst ; dq = q_zu - q_sat ! Updating air/sea differences
[2715]	944	T_vpot = T_zu(1. + 0.608q_zu) ! Updating virtual potential temperature at zu
[888]	945	U_star = sqrt_Cd*dU10 ! Updating turbulent scales : (L & Y eq. (7))
	946	T_star = Ch/sqrt_Cd*dT !
	947	q_star = Ce/sqrt_Cd*dq !
	948	!!
	949	L = (U_star*U_star) & ! Estimate the Monin-Obukov length at height zu
[2715]	950	& / (kappagrav/T_vpot(T_star(1.+0.608q_zu) + 0.608T_zuq_star))
[888]	951	!! Stability parameters :
	952	zeta_u = zu/L ; zeta_u = sign( min(abs(zeta_u),10.0), zeta_u )
	953	zeta_t = zt/L ; zeta_t = sign( min(abs(zeta_t),10.0), zeta_t )
	954	zpsi_hu = psi_h(zeta_u)
	955	zpsi_ht = psi_h(zeta_t)
	956	zpsi_m = psi_m(zeta_u)
	957	!!
	958	!! Shifting the wind speed to 10m and neutral stability : (L & Y eq.(9a))
	959	! U_n10 = dU10/(1. + sqrt_Cd_n10/kappa*(log(zu/10.) - psi_m(zeta_u)))
	960	U_n10 = dU10/(1. + sqrt_Cd_n10/kappa*(log(zu/10.) - zpsi_m))
	961	!!
	962	!! Shifting temperature and humidity at zu : (L & Y eq. (9b-9c))
	963	! T_zu = T_zt - T_star/kappa*(log(zt/zu) + psi_h(zeta_u) - psi_h(zeta_t))
	964	T_zu = T_zt - T_star/kappa*(log(zt/zu) + zpsi_hu - zpsi_ht)
	965	! q_zu = q_zt - q_star/kappa*(log(zt/zu) + psi_h(zeta_u) - psi_h(zeta_t))
	966	q_zu = q_zt - q_star/kappa*(log(zt/zu) + zpsi_hu - zpsi_ht)
	967	!!
	968	!! q_zu cannot have a negative value : forcing 0
	969	stab = 0.5 + sign(0.5,q_zu) ; q_zu = stab*q_zu
	970	!!
[3294]	971	IF( ln_cdgw ) THEN
	972	sqrt_Cd=kappa/((kappa/sqrt_Cd_n10) - zpsi_m) ; Cd=sqrt_Cd*sqrt_Cd;
	973	ELSE
	974	!! Updating the neutral 10m transfer coefficients :
	975	Cd_n10 = 1E-3 * (2.7/U_n10 + 0.142 + U_n10/13.09) ! L & Y eq. (6a)
	976	sqrt_Cd_n10 = sqrt(Cd_n10)
	977	Ce_n10 = 1E-3 * (34.6 * sqrt_Cd_n10) ! L & Y eq. (6b)
	978	stab = 0.5 + sign(0.5,zeta_u)
	979	Ch_n10 = 1E-3sqrt_Cd_n10(18.stab + 32.7(1-stab)) ! L & Y eq. (6c-6d)
	980	!!
	981	!!
	982	!! Shifting the neutral 10m transfer coefficients to (zu,zeta_u) :
[4245]	983	xct = 1. + sqrt_Cd_n10/kappa*(log(zu/10.) - zpsi_m) ! L & Y eq. (10a)
[3294]	984	Cd = Cd_n10/(xct*xct) ; sqrt_Cd = sqrt(Cd)
	985	ENDIF
[888]	986	!!
	987	xlogt = log(zu/10.) - zpsi_hu
	988	!!
[4245]	989	xct = 1. + Ch_n10*xlogt/kappa/sqrt_Cd_n10 ! L & Y eq. (10b)
[888]	990	Ch = Ch_n10*sqrt_Cd/sqrt_Cd_n10/xct
	991	!!
[4245]	992	xct = 1. + Ce_n10*xlogt/kappa/sqrt_Cd_n10 ! L & Y eq. (10c)
[888]	993	Ce = Ce_n10*sqrt_Cd/sqrt_Cd_n10/xct
	994	!!
	995	!!
	996	END DO
	997	!!
[3294]	998	CALL wrk_dealloc( jpi,jpj, dU10, dT, dq, Cd_n10, Ce_n10, Ch_n10, sqrt_Cd_n10, sqrt_Cd, L )
	999	CALL wrk_dealloc( jpi,jpj, T_vpot, T_star, q_star, U_star, zeta_u, zeta_t, U_n10 )
	1000	CALL wrk_dealloc( jpi,jpj, xlogt, xct, zpsi_hu, zpsi_ht, zpsi_m )
	1001	CALL wrk_dealloc( jpi,jpj, stab ) ! interger
[2715]	1002	!
[3294]	1003	IF( nn_timing == 1 ) CALL timing_stop('TURB_CORE_2Z')
	1004	!
[888]	1005	END SUBROUTINE TURB_CORE_2Z
	1006
	1007
	1008	FUNCTION psi_m(zta) !! Psis, L & Y eq. (8c), (8d), (8e)
[2715]	1009	!-------------------------------------------------------------------------------
[888]	1010	REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: zta
	1011
	1012	REAL(wp), PARAMETER :: pi = 3.141592653589793_wp
	1013	REAL(wp), DIMENSION(jpi,jpj) :: psi_m
[3294]	1014	REAL(wp), DIMENSION(:,:), POINTER :: X2, X, stabit
[2715]	1015	!-------------------------------------------------------------------------------
	1016
[3294]	1017	CALL wrk_alloc( jpi,jpj, X2, X, stabit )
[2715]	1018
[888]	1019	X2 = sqrt(abs(1. - 16.*zta)) ; X2 = max(X2 , 1.0) ; X = sqrt(X2)
	1020	stabit = 0.5 + sign(0.5,zta)
[2715]	1021	psi_m = -5.ztastabit & ! Stable
	1022	& + (1. - stabit)(2log((1. + X)/2) + log((1. + X2)/2) - 2*atan(X) + pi/2) ! Unstable
	1023
[3294]	1024	CALL wrk_dealloc( jpi,jpj, X2, X, stabit )
[2715]	1025	!
[888]	1026	END FUNCTION psi_m
	1027
	1028
[2715]	1029	FUNCTION psi_h( zta ) !! Psis, L & Y eq. (8c), (8d), (8e)
	1030	!-------------------------------------------------------------------------------
	1031	REAL(wp), DIMENSION(jpi,jpj), INTENT(in) :: zta
	1032	!
	1033	REAL(wp), DIMENSION(jpi,jpj) :: psi_h
[3294]	1034	REAL(wp), DIMENSION(:,:), POINTER :: X2, X, stabit
[2715]	1035	!-------------------------------------------------------------------------------
	1036
[3294]	1037	CALL wrk_alloc( jpi,jpj, X2, X, stabit )
[2715]	1038
[888]	1039	X2 = sqrt(abs(1. - 16.*zta)) ; X2 = max(X2 , 1.) ; X = sqrt(X2)
	1040	stabit = 0.5 + sign(0.5,zta)
	1041	psi_h = -5.ztastabit & ! Stable
[2715]	1042	& + (1. - stabit)(2.log( (1. + X2)/2. )) ! Unstable
	1043
[3294]	1044	CALL wrk_dealloc( jpi,jpj, X2, X, stabit )
[2715]	1045	!
[888]	1046	END FUNCTION psi_h
	1047
	1048	!!======================================================================
	1049	END MODULE sbcblk_core

Note: See TracBrowser for help on using the repository browser.

Download in other formats: