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limthd_2.F90 @ 7953

Last change on this file since 7953 was 7646, checked in by timgraham, 7 years ago

Merge of dev_merge_2016 into trunk. UPDATE TO ARCHFILES NEEDED for XIOS2.
LIM_SRC_s/limrhg.F90 to follow in next commit due to change of kind (I'm unable to do it in this commit).
Merged using the following steps:

1) svn merge --reintegrate svn+ssh://forge.ipsl.jussieu.fr/ipsl/forge/projets/nemo/svn/trunk .
2) Resolve minor conflicts in sette.sh and namelist_cfg for ORCA2LIM3 (due to a change in trunk after branch was created)
3) svn commit
4) svn switch svn+ssh://forge.ipsl.jussieu.fr/ipsl/forge/projets/nemo/svn/trunk
5) svn merge svn+ssh://forge.ipsl.jussieu.fr/ipsl/forge/projets/nemo/svn/branches/2016/dev_merge_2016 .
6) At this stage I checked out a clean copy of the branch to compare against what is about to be committed to the trunk.
6) svn commit #Commit code to the trunk

In this commit I have also reverted a change to Fcheck_archfile.sh which was causing problems on the Paris machine.

Property svn:keywords set to Id

File size: 35.3 KB

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1	MODULE limthd_2
2	!!======================================================================
3	!! * MODULE limthd_2 *
4	!! LIM thermo ice model : ice thermodynamic
5	!!======================================================================
6	!! History : 1.0 ! 2000-01 (LIM)
7	!! 2.0 ! 2002-07 (C. Ethe, G. Madec) F90
8	!! 2.0 ! 2003-08 (C. Ethe) add lim_thd_init
9	!! - ! 2008-2008 (A. Caubel, G. Madec, E. Maisonnave, S. Masson ) generic coupled interface
10	!!---------------------------------------------------------------------
11	#if defined key_lim2
12	!!----------------------------------------------------------------------
13	!! 'key_lim2' : LIM 2.0 sea-ice model
14	!!----------------------------------------------------------------------
15	!! lim_thd_2 : thermodynamic of sea ice
16	!! lim_thd_init_2 : initialisation of sea-ice thermodynamic
17	!!----------------------------------------------------------------------
18	USE phycst ! physical constants
19	USE dom_oce ! ocean space and time domain variables
20	USE domvvl ! ocean domain
21	USE ice_2 ! LIM sea-ice variables
22	USE sbc_oce ! surface boundary condition: ocean
23	USE sbc_ice ! surface boundary condition: sea-ice
24	USE thd_ice_2 ! LIM thermodynamic sea-ice variables
25	USE dom_ice_2 ! LIM sea-ice domain
26	USE limthd_zdf_2 !
27	USE limthd_lac_2 !
28	USE limtab_2 !
29	!
30	USE in_out_manager ! I/O manager
31	USE lbclnk !
32	USE lib_mpp !
33	USE wrk_nemo ! work arrays
34	USE iom ! IOM library
35	USE prtctl ! Print control
36	USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined)
37
38	IMPLICIT NONE
39	PRIVATE
40
41	PUBLIC lim_thd_2 ! called by lim_step
42
43	REAL(wp) :: epsi20 = 1.e-20 ! constant values
44	REAL(wp) :: epsi16 = 1.e-16 !
45	REAL(wp) :: epsi04 = 1.e-04 !
46	REAL(wp) :: rzero = 0._wp !
47	REAL(wp) :: rone = 1._wp !
48
49	!! * Substitutions
50	# include "vectopt_loop_substitute.h90"
51	!!-------- -------------------------------------------------------------
52	!! NEMO/LIM2 3.3 , UCL - NEMO Consortium (2010)
53	!! $Id$
54	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
55	!!----------------------------------------------------------------------
56	CONTAINS
57
58	SUBROUTINE lim_thd_2( kt )
59	!!-------------------------------------------------------------------
60	!! * ROUTINE lim_thd_2 *
61	!!
62	!! ** Purpose : This routine manages the ice thermodynamic.
63	!!
64	!! ** Action : - Initialisation of some variables
65	!! - Some preliminary computation (oceanic heat flux
66	!! at the ice base, snow acc.,heat budget of the leads)
67	!! - selection of the icy points and put them in an array
68	!! - call lim_vert_ther for vert ice thermodynamic
69	!! - back to the geographic grid
70	!! - selection of points for lateral accretion
71	!! - call lim_lat_acc for the ice accretion
72	!! - back to the geographic grid
73	!!
74	!! References : Goosse et al. 1996, Bul. Soc. Roy. Sc. Liege, 65, 87-90
75	!!---------------------------------------------------------------------
76	INTEGER, INTENT(in) :: kt ! number of iteration
77	!
78	INTEGER :: ji, jj ! dummy loop indices
79	INTEGER :: nbpb ! nb of icy pts for thermo. cal.
80	INTEGER :: nbpac ! nb of pts for lateral accretion
81	CHARACTER (len=22) :: charout
82	REAL(wp) :: zfric_umin = 5e-03 ! lower bound for the friction velocity
83	REAL(wp) :: zfric_umax = 2e-02 ! upper bound for the friction velocity
84	REAL(wp) :: zinda ! switch for test. the val. of concen.
85	REAL(wp) :: zindb, zindg ! switches for test. the val of arg
86	REAL(wp) :: zfricp ! temporary scalar
87	REAL(wp) :: za , zh, zthsnice !
88	REAL(wp) :: zfric_u ! friction velocity
89	REAL(wp) :: zfntlat, zpareff ! test. the val. of lead heat budget
90
91	REAL(wp) :: zuice_m, zvice_m ! Sea-ice velocities at U & V-points
92	REAL(wp) :: zhice_u, zhice_v ! Sea-ice volume at U & V-points
93	REAL(wp) :: ztr_fram ! Sea-ice transport through Fram strait
94	REAL(wp) :: zrhoij, zrhoijm1 ! temporary scalars
95	REAL(wp) :: zztmp ! temporary scalars within a loop
96	REAL(wp), POINTER, DIMENSION(:,:) :: ztmp ! 2D workspace
97	REAL(wp), POINTER, DIMENSION(:,:) :: zqlbsbq ! link with lead energy budget qldif
98	REAL(wp), POINTER, DIMENSION(:,:) :: zlicegr ! link with lateral ice growth
99	!!$ REAL(wp), DIMENSION(:,:) :: firic ! IR flux over the ice (outputs only)
100	!!$ REAL(wp), DIMENSION(:,:) :: fcsic ! Sensible heat flux over the ice (outputs only)
101	!!$ REAL(wp), DIMENSION(:,:) :: fleic ! Latent heat flux over the ice (outputs only)
102	!!$ REAL(wp), DIMENSION(:,:) :: qlatic ! latent flux (outputs only)
103	REAL(wp), POINTER, DIMENSION(:,:) :: zdvosif ! Variation of volume at surface (outputs only)
104	REAL(wp), POINTER, DIMENSION(:,:) :: zdvobif ! Variation of ice volume at the bottom ice (outputs only)
105	REAL(wp), POINTER, DIMENSION(:,:) :: zdvolif ! Total variation of ice volume (outputs only)
106	REAL(wp), POINTER, DIMENSION(:,:) :: zdvonif ! Surface accretion Snow to Ice transformation (outputs only)
107	REAL(wp), POINTER, DIMENSION(:,:) :: zdvomif ! Bottom variation of ice volume due to melting (outputs only)
108	REAL(wp), POINTER, DIMENSION(:,:) :: zu_imasstr ! Sea-ice transport along i-axis at U-point (outputs only)
109	REAL(wp), POINTER, DIMENSION(:,:) :: zv_imasstr ! Sea-ice transport along j-axis at V-point (outputs only)
110	REAL(wp), POINTER, DIMENSION(:,:,:) :: zmsk ! 3D workspace
111	!!-------------------------------------------------------------------
112
113	CALL wrk_alloc( jpi, jpj, ztmp, zqlbsbq, zlicegr, zdvosif, zdvobif, zdvolif, zdvonif, zdvomif, zu_imasstr, zv_imasstr )
114	CALL wrk_alloc( jpi, jpj, jpk, zmsk )
115
116	IF( kt == nit000 ) CALL lim_thd_init_2 ! Initialization (first time-step only)
117
118	!-------------------------------------------!
119	! Initilization of diagnostic variables !
120	!-------------------------------------------!
121
122	!!gm needed? yes at least for some of these arrays
123	zdvosif(:,:) = 0.e0 ! variation of ice volume at surface
124	zdvobif(:,:) = 0.e0 ! variation of ice volume at bottom
125	zdvolif(:,:) = 0.e0 ! total variation of ice volume
126	zdvonif(:,:) = 0.e0 ! transformation of snow to sea-ice volume
127	zlicegr(:,:) = 0.e0 ! lateral variation of ice volume
128	zdvomif(:,:) = 0.e0 ! variation of ice volume at bottom due to melting only
129	ztr_fram = 0.e0 ! sea-ice transport through Fram strait
130	fstric (:,:) = 0.e0 ! part of solar radiation absorbing inside the ice
131	fscmbq (:,:) = 0.e0 ! linked with fstric
132	ffltbif(:,:) = 0.e0 ! linked with fstric
133	qfvbq (:,:) = 0.e0 ! linked with fstric
134	rdm_snw(:,:) = 0.e0 ! variation of snow mass over 1 time step
135	rdq_snw(:,:) = 0.e0 ! heat content associated with rdm_snw
136	rdm_ice(:,:) = 0.e0 ! variation of ice mass over 1 time step
137	rdq_ice(:,:) = 0.e0 ! heat content associated with rdm_ice
138	zmsk (:,:,:) = 0.e0
139
140	! set to zero snow thickness smaller than epsi04
141	DO jj = 1, jpj
142	DO ji = 1, jpi
143	hsnif(ji,jj) = hsnif(ji,jj) * MAX( rzero, SIGN( rone , hsnif(ji,jj) - epsi04 ) )
144	END DO
145	END DO
146	!!gm better coded (do not use SIGN...)
147	! WHERE( hsnif(:,:) < epsi04 ) hsnif(:,:) = 0.e0
148	!!gm
149
150	IF(ln_ctl) CALL prt_ctl( tab2d_1=hsnif, clinfo1=' lim_thd: hsnif : ' )
151
152	!-----------------------------------!
153	! Treatment of particular cases !
154	!-----------------------------------!
155
156	DO jj = 1, jpj
157	DO ji = 1, jpi
158	! snow is transformed into ice if the original ice cover disappears.
159	zindg = tms(ji,jj) * MAX( rzero , SIGN( rone , -hicif(ji,jj) ) )
160	hicif(ji,jj) = hicif(ji,jj) + zindg * rhosn * hsnif(ji,jj) / rau0
161	hsnif(ji,jj) = ( rone - zindg ) * hsnif(ji,jj) + zindg * hicif(ji,jj) * ( rau0 - rhoic ) / rhosn
162	dmgwi(ji,jj) = zindg * (1.0 - frld(ji,jj)) * rhoic * hicif(ji,jj) ! snow/ice mass
163
164	! the lead fraction, frld, must be little than or equal to amax (ice ridging).
165	zthsnice = hsnif(ji,jj) + hicif(ji,jj)
166	zindb = tms(ji,jj) * ( 1.0 - MAX( rzero , SIGN( rone , - zthsnice ) ) )
167	za = zindb * MIN( rone, ( 1.0 - frld(ji,jj) ) * uscomi )
168	hsnif (ji,jj) = hsnif(ji,jj) * za
169	hicif (ji,jj) = hicif(ji,jj) * za
170	qstoif(ji,jj) = qstoif(ji,jj) * za
171	frld (ji,jj) = 1.0 - zindb * ( 1.0 - frld(ji,jj) ) / MAX( za, epsi20 )
172
173	! the in situ ice thickness, hicif, must be equal to or greater than hiclim.
174	zh = MAX( rone , zindb * hiclim / MAX( hicif(ji,jj), epsi20 ) )
175	hsnif (ji,jj) = hsnif(ji,jj) * zh
176	hicif (ji,jj) = hicif(ji,jj) * zh
177	qstoif(ji,jj) = qstoif(ji,jj) * zh
178	frld (ji,jj) = ( frld(ji,jj) + ( zh - 1.0 ) ) / zh
179	END DO
180	END DO
181
182	IF(ln_ctl) THEN
183	CALL prt_ctl( tab2d_1=hicif , clinfo1=' lim_thd: hicif : ' )
184	CALL prt_ctl( tab2d_1=hsnif , clinfo1=' lim_thd: hsnif : ' )
185	CALL prt_ctl( tab2d_1=dmgwi , clinfo1=' lim_thd: dmgwi : ' )
186	CALL prt_ctl( tab2d_1=qstoif, clinfo1=' lim_thd: qstoif : ' )
187	CALL prt_ctl( tab2d_1=frld , clinfo1=' lim_thd: frld : ' )
188	ENDIF
189
190
191	!-------------------------------!
192	! Thermodynamics of sea ice !
193	!-------------------------------!
194
195	! Partial computation of forcing for the thermodynamic sea ice model.
196	!--------------------------------------------------------------------------
197
198	DO jj = 1, jpj
199	DO ji = 1, jpi
200	zthsnice = hsnif(ji,jj) + hicif(ji,jj)
201	zindb = tms(ji,jj) * ( 1.0 - MAX( rzero , SIGN( rone , - zthsnice ) ) )
202	pfrld(ji,jj) = frld(ji,jj)
203	zfricp = 1.0 - frld(ji,jj)
204	zinda = 1.0 - MAX( rzero , SIGN( rone , - zfricp ) )
205
206	! solar irradiance transmission at the mixed layer bottom and used in the lead heat budget
207	thcm(ji,jj) = 0.e0
208
209	! net downward heat flux from the ice to the ocean, expressed as a function of ocean
210	! temperature and turbulent mixing (McPhee, 1992)
211	zfric_u = MAX ( MIN( SQRT( ust2s(ji,jj) ) , zfric_umax ) , zfric_umin ) ! friction velocity
212	fdtcn(ji,jj) = zindb * rau0 * rcp * 0.006 * zfric_u * ( sst_m(ji,jj) + rt0 - tfu(ji,jj) )
213	qdtcn(ji,jj) = zindb * fdtcn(ji,jj) * frld(ji,jj) * rdt_ice
214
215	! partial computation of the lead energy budget (qldif)
216	IF( ln_cpl ) THEN
217	qldif(ji,jj) = tms(ji,jj) * rdt_ice &
218	& * ( ( qsr_tot(ji,jj) - qsr_ice(ji,jj,1) * zfricp ) * ( 1.0 - thcm(ji,jj) ) &
219	& + ( qns_tot(ji,jj) - qns_ice(ji,jj,1) * zfricp ) &
220	& + frld(ji,jj) * ( fdtcn(ji,jj) + ( 1.0 - zindb ) * fsbbq(ji,jj) ) )
221	ELSE
222	qldif(ji,jj) = tms(ji,jj) * rdt_ice * frld(ji,jj) &
223	& * ( qsr(ji,jj) * ( 1.0 - thcm(ji,jj) ) &
224	& + qns(ji,jj) + fdtcn(ji,jj) &
225	& + ( 1.0 - zindb ) * fsbbq(ji,jj) )
226	ENDIF
227	! parlat : percentage of energy used for lateral ablation (0.0)
228	zfntlat = 1.0 - MAX( rzero , SIGN( rone , - qldif(ji,jj) ) )
229	zpareff = 1.0 + ( parlat - 1.0 ) * zinda * zfntlat
230	zqlbsbq(ji,jj) = qldif(ji,jj) * ( 1.0 - zpareff ) / MAX( (1.0 - frld(ji,jj)) * rdt_ice , epsi16 )
231	qldif (ji,jj) = zpareff * qldif(ji,jj)
232	qdtcn (ji,jj) = zpareff * qdtcn(ji,jj)
233
234	! energy needed to bring ocean surface layer until its freezing
235	qcmif (ji,jj) = rau0 * rcp * e3t_m(ji,jj) * ( tfu(ji,jj) - sst_m(ji,jj) - rt0 ) * ( 1 - zinda )
236
237	! calculate oceanic heat flux.
238	fbif (ji,jj) = zindb * ( fsbbq(ji,jj) / MAX( (1.0 - frld(ji,jj)) , epsi20 ) + fdtcn(ji,jj) )
239
240	! computation of the thermodynamic ice production (only needed for output)
241	hicifp(ji,jj) = hicif(ji,jj) * ( 1.0 - frld(ji,jj) )
242	END DO
243	END DO
244
245	! Select icy points and fulfill arrays for the vectorial grid.
246	!----------------------------------------------------------------------
247	nbpb = 0
248	DO jj = 1, jpj
249	DO ji = 1, jpi
250	IF ( frld(ji,jj) < 1.0 ) THEN
251	nbpb = nbpb + 1
252	npb(nbpb) = (jj - 1) * jpi + ji
253	ENDIF
254	END DO
255	END DO
256
257	IF(ln_ctl) THEN
258	CALL prt_ctl(tab2d_1=pfrld, clinfo1=' lim_thd: pfrld : ', tab2d_2=thcm , clinfo2=' thcm : ')
259	CALL prt_ctl(tab2d_1=fdtcn, clinfo1=' lim_thd: fdtcn : ', tab2d_2=qdtcn , clinfo2=' qdtcn : ')
260	CALL prt_ctl(tab2d_1=qldif, clinfo1=' lim_thd: qldif : ', tab2d_2=zqlbsbq, clinfo2=' zqlbsbq : ')
261	CALL prt_ctl(tab2d_1=qcmif, clinfo1=' lim_thd: qcmif : ', tab2d_2=fbif , clinfo2=' fbif : ')
262	zmsk(:,:,1) = tms(:,:)
263	CALL prt_ctl(tab2d_1=qcmif , clinfo1=' lim_thd: qcmif : ', mask1=zmsk)
264	CALL prt_ctl(tab2d_1=hicifp, clinfo1=' lim_thd: hicifp : ')
265	WRITE(charout, FMT="('lim_thd: nbpb = ',I4)") nbpb
266	CALL prt_ctl_info(charout)
267	ENDIF
268
269
270	! If there is no ice, do nothing. Otherwise, compute Top and Bottom accretion/ablation
271	!------------------------------------------------------------------------------------
272
273	IF( nbpb > 0 ) THEN
274	!
275	! put the variable in a 1-D array for thermodynamics process
276	CALL tab_2d_1d_2( nbpb, frld_1d (1:nbpb) , frld , jpi, jpj, npb(1:nbpb) )
277	CALL tab_2d_1d_2( nbpb, h_ice_1d (1:nbpb) , hicif , jpi, jpj, npb(1:nbpb) )
278	CALL tab_2d_1d_2( nbpb, h_snow_1d (1:nbpb) , hsnif , jpi, jpj, npb(1:nbpb) )
279	CALL tab_2d_1d_2( nbpb, sist_1d (1:nbpb) , sist , jpi, jpj, npb(1:nbpb) )
280	CALL tab_2d_1d_2( nbpb, tbif_1d (1:nbpb , 1 ), tbif(:,:,1) , jpi, jpj, npb(1:nbpb) )
281	CALL tab_2d_1d_2( nbpb, tbif_1d (1:nbpb , 2 ), tbif(:,:,2) , jpi, jpj, npb(1:nbpb) )
282	CALL tab_2d_1d_2( nbpb, tbif_1d (1:nbpb , 3 ), tbif(:,:,3) , jpi, jpj, npb(1:nbpb) )
283	CALL tab_2d_1d_2( nbpb, qsr_ice_1d (1:nbpb) , qsr_ice(:,:,1) , jpi, jpj, npb(1:nbpb) )
284	CALL tab_2d_1d_2( nbpb, fr1_i0_1d (1:nbpb) , fr1_i0 , jpi, jpj, npb(1:nbpb) )
285	CALL tab_2d_1d_2( nbpb, fr2_i0_1d (1:nbpb) , fr2_i0 , jpi, jpj, npb(1:nbpb) )
286	CALL tab_2d_1d_2( nbpb, qns_ice_1d(1:nbpb) , qns_ice(:,:,1), jpi, jpj, npb(1:nbpb) )
287	CALL tab_2d_1d_2( nbpb, dqns_ice_1d(1:nbpb) , dqns_ice(:,:,1), jpi, jpj, npb(1:nbpb) )
288	IF( .NOT. ln_cpl ) THEN
289	CALL tab_2d_1d_2( nbpb, qla_ice_1d (1:nbpb) , qla_ice(:,:,1), jpi, jpj, npb(1:nbpb) )
290	CALL tab_2d_1d_2( nbpb, dqla_ice_1d(1:nbpb) , dqla_ice(:,:,1), jpi, jpj, npb(1:nbpb) )
291	ENDIF
292	CALL tab_2d_1d_2( nbpb, tfu_1d (1:nbpb) , tfu , jpi, jpj, npb(1:nbpb) )
293	CALL tab_2d_1d_2( nbpb, sprecip_1d (1:nbpb) , sprecip , jpi, jpj, npb(1:nbpb) )
294	CALL tab_2d_1d_2( nbpb, fbif_1d (1:nbpb) , fbif , jpi, jpj, npb(1:nbpb) )
295	CALL tab_2d_1d_2( nbpb, thcm_1d (1:nbpb) , thcm , jpi, jpj, npb(1:nbpb) )
296	CALL tab_2d_1d_2( nbpb, qldif_1d (1:nbpb) , qldif , jpi, jpj, npb(1:nbpb) )
297	CALL tab_2d_1d_2( nbpb, qstbif_1d (1:nbpb) , qstoif , jpi, jpj, npb(1:nbpb) )
298	CALL tab_2d_1d_2( nbpb, rdm_ice_1d (1:nbpb) , rdm_ice , jpi, jpj, npb(1:nbpb) )
299	CALL tab_2d_1d_2( nbpb, rdq_ice_1d (1:nbpb) , rdq_ice , jpi, jpj, npb(1:nbpb) )
300	CALL tab_2d_1d_2( nbpb, dmgwi_1d (1:nbpb) , dmgwi , jpi, jpj, npb(1:nbpb) )
301	CALL tab_2d_1d_2( nbpb, rdm_snw_1d (1:nbpb) , rdm_snw , jpi, jpj, npb(1:nbpb) )
302	CALL tab_2d_1d_2( nbpb, rdq_snw_1d (1:nbpb) , rdq_snw , jpi, jpj, npb(1:nbpb) )
303	CALL tab_2d_1d_2( nbpb, qlbbq_1d (1:nbpb) , zqlbsbq , jpi, jpj, npb(1:nbpb) )
304	!
305	CALL lim_thd_zdf_2( 1, nbpb ) ! compute ice growth
306	!
307	! back to the geographic grid.
308	CALL tab_1d_2d_2( nbpb, frld , npb, frld_1d (1:nbpb) , jpi, jpj )
309	CALL tab_1d_2d_2( nbpb, hicif , npb, h_ice_1d (1:nbpb) , jpi, jpj )
310	CALL tab_1d_2d_2( nbpb, hsnif , npb, h_snow_1d (1:nbpb) , jpi, jpj )
311	CALL tab_1d_2d_2( nbpb, sist , npb, sist_1d (1:nbpb) , jpi, jpj )
312	CALL tab_1d_2d_2( nbpb, tbif(:,:,1), npb, tbif_1d (1:nbpb , 1 ), jpi, jpj )
313	CALL tab_1d_2d_2( nbpb, tbif(:,:,2), npb, tbif_1d (1:nbpb , 2 ), jpi, jpj )
314	CALL tab_1d_2d_2( nbpb, tbif(:,:,3), npb, tbif_1d (1:nbpb , 3 ), jpi, jpj )
315	CALL tab_1d_2d_2( nbpb, fscmbq , npb, fscbq_1d (1:nbpb) , jpi, jpj )
316	CALL tab_1d_2d_2( nbpb, ffltbif , npb, fltbif_1d (1:nbpb) , jpi, jpj )
317	CALL tab_1d_2d_2( nbpb, fstric , npb, fstbif_1d (1:nbpb) , jpi, jpj )
318	CALL tab_1d_2d_2( nbpb, qldif , npb, qldif_1d (1:nbpb) , jpi, jpj )
319	CALL tab_1d_2d_2( nbpb, qfvbq , npb, qfvbq_1d (1:nbpb) , jpi, jpj )
320	CALL tab_1d_2d_2( nbpb, qstoif , npb, qstbif_1d (1:nbpb) , jpi, jpj )
321	CALL tab_1d_2d_2( nbpb, rdm_ice , npb, rdm_ice_1d(1:nbpb) , jpi, jpj )
322	CALL tab_1d_2d_2( nbpb, rdq_ice , npb, rdq_ice_1d(1:nbpb) , jpi, jpj )
323	CALL tab_1d_2d_2( nbpb, dmgwi , npb, dmgwi_1d (1:nbpb) , jpi, jpj )
324	CALL tab_1d_2d_2( nbpb, rdm_snw , npb, rdm_snw_1d(1:nbpb) , jpi, jpj )
325	CALL tab_1d_2d_2( nbpb, rdq_snw , npb, rdq_snw_1d(1:nbpb) , jpi, jpj )
326	CALL tab_1d_2d_2( nbpb, zdvosif , npb, dvsbq_1d (1:nbpb) , jpi, jpj )
327	CALL tab_1d_2d_2( nbpb, zdvobif , npb, dvbbq_1d (1:nbpb) , jpi, jpj )
328	CALL tab_1d_2d_2( nbpb, zdvomif , npb, rdvomif_1d(1:nbpb) , jpi, jpj )
329	CALL tab_1d_2d_2( nbpb, zdvolif , npb, dvlbq_1d (1:nbpb) , jpi, jpj )
330	CALL tab_1d_2d_2( nbpb, zdvonif , npb, dvnbq_1d (1:nbpb) , jpi, jpj )
331	CALL tab_1d_2d_2( nbpb, qsr_ice(:,:,1), npb, qsr_ice_1d(1:nbpb) , jpi, jpj )
332	CALL tab_1d_2d_2( nbpb, qns_ice(:,:,1), npb, qns_ice_1d(1:nbpb) , jpi, jpj )
333	IF( .NOT. ln_cpl ) CALL tab_1d_2d_2( nbpb, qla_ice(:,:,1), npb, qla_ice_1d(1:nbpb), jpi, jpj )
334	!
335	ENDIF
336
337	! Up-date sea ice thickness
338	!--------------------------
339	DO jj = 1, jpj
340	DO ji = 1, jpi
341	phicif(ji,jj) = hicif(ji,jj)
342	hicif(ji,jj) = hicif(ji,jj) * ( rone - MAX( rzero, SIGN( rone, - ( 1.0 - frld(ji,jj) ) ) ) )
343	END DO
344	END DO
345
346
347	! Tricky trick : add 2 to frld in the Southern Hemisphere
348	!--------------------------------------------------------
349	IF( ff_t(1,1) < 0._wp ) THEN
350	DO jj = 1, njeqm1
351	DO ji = 1, jpi
352	frld(ji,jj) = frld(ji,jj) + 2.0
353	END DO
354	END DO
355	ENDIF
356
357	CALL lbc_lnk( frld , 'T', 1. )
358
359	! Select points for lateral accretion (this occurs when heat exchange
360	! between ice and ocean is negative; ocean losing heat)
361	!-----------------------------------------------------------------
362	nbpac = 0
363	DO jj = 1, jpj
364	DO ji = 1, jpi
365	!i yes! IF ( ( qcmif(ji,jj) - qldif(ji,jj) ) > 0.e0 ) THEN
366	IF ( tms(ji,jj) * ( qcmif(ji,jj) - qldif(ji,jj) ) > 0.e0 ) THEN
367	nbpac = nbpac + 1
368	npac( nbpac ) = (jj - 1) * jpi + ji
369	ENDIF
370	END DO
371	END DO
372
373	IF(ln_ctl) THEN
374	CALL prt_ctl(tab2d_1=phicif, clinfo1=' lim_thd: phicif : ', tab2d_2=hicif, clinfo2=' hicif : ')
375	WRITE(charout, FMT="('lim_thd: nbpac = ',I4)") nbpac
376	CALL prt_ctl_info(charout)
377	ENDIF
378
379
380	! If ocean gains heat do nothing ; otherwise, one performs lateral accretion
381	!--------------------------------------------------------------------------------
382	IF( nbpac > 0 ) THEN
383	!
384	zlicegr(:,:) = rdm_ice(:,:) ! to output the lateral sea-ice growth
385	!...Put the variable in a 1-D array for lateral accretion
386	CALL tab_2d_1d_2( nbpac, frld_1d (1:nbpac) , frld , jpi, jpj, npac(1:nbpac) )
387	CALL tab_2d_1d_2( nbpac, h_snow_1d (1:nbpac) , hsnif , jpi, jpj, npac(1:nbpac) )
388	CALL tab_2d_1d_2( nbpac, h_ice_1d (1:nbpac) , hicif , jpi, jpj, npac(1:nbpac) )
389	CALL tab_2d_1d_2( nbpac, tbif_1d (1:nbpac , 1 ), tbif(:,:,1), jpi, jpj, npac(1:nbpac) )
390	CALL tab_2d_1d_2( nbpac, tbif_1d (1:nbpac , 2 ), tbif(:,:,2), jpi, jpj, npac(1:nbpac) )
391	CALL tab_2d_1d_2( nbpac, tbif_1d (1:nbpac , 3 ), tbif(:,:,3), jpi, jpj, npac(1:nbpac) )
392	CALL tab_2d_1d_2( nbpac, qldif_1d (1:nbpac) , qldif , jpi, jpj, npac(1:nbpac) )
393	CALL tab_2d_1d_2( nbpac, qcmif_1d (1:nbpac) , qcmif , jpi, jpj, npac(1:nbpac) )
394	CALL tab_2d_1d_2( nbpac, qstbif_1d (1:nbpac) , qstoif , jpi, jpj, npac(1:nbpac) )
395	CALL tab_2d_1d_2( nbpac, rdm_ice_1d(1:nbpac) , rdm_ice , jpi, jpj, npac(1:nbpac) )
396	CALL tab_2d_1d_2( nbpac, rdq_ice_1d(1:nbpac) , rdq_ice , jpi, jpj, npac(1:nbpac) )
397	CALL tab_2d_1d_2( nbpac, dvlbq_1d (1:nbpac) , zdvolif , jpi, jpj, npac(1:nbpac) )
398	CALL tab_2d_1d_2( nbpac, tfu_1d (1:nbpac) , tfu , jpi, jpj, npac(1:nbpac) )
399	!
400	CALL lim_thd_lac_2( 1 , nbpac ) ! lateral accretion routine.
401	!
402	! back to the geographic grid
403	CALL tab_1d_2d_2( nbpac, frld , npac(1:nbpac), frld_1d (1:nbpac) , jpi, jpj )
404	CALL tab_1d_2d_2( nbpac, hsnif , npac(1:nbpac), h_snow_1d (1:nbpac) , jpi, jpj )
405	CALL tab_1d_2d_2( nbpac, hicif , npac(1:nbpac), h_ice_1d (1:nbpac) , jpi, jpj )
406	CALL tab_1d_2d_2( nbpac, tbif(:,:,1), npac(1:nbpac), tbif_1d (1:nbpac , 1 ), jpi, jpj )
407	CALL tab_1d_2d_2( nbpac, tbif(:,:,2), npac(1:nbpac), tbif_1d (1:nbpac , 2 ), jpi, jpj )
408	CALL tab_1d_2d_2( nbpac, tbif(:,:,3), npac(1:nbpac), tbif_1d (1:nbpac , 3 ), jpi, jpj )
409	CALL tab_1d_2d_2( nbpac, qstoif , npac(1:nbpac), qstbif_1d (1:nbpac) , jpi, jpj )
410	CALL tab_1d_2d_2( nbpac, rdm_ice , npac(1:nbpac), rdm_ice_1d(1:nbpac) , jpi, jpj )
411	CALL tab_1d_2d_2( nbpac, rdq_ice , npac(1:nbpac), rdq_ice_1d(1:nbpac) , jpi, jpj )
412	CALL tab_1d_2d_2( nbpac, zdvolif , npac(1:nbpac), dvlbq_1d (1:nbpac) , jpi, jpj )
413	!
414	ENDIF
415
416
417	! Recover frld values between 0 and 1 in the Southern Hemisphere (tricky trick)
418	! Update daily thermodynamic ice production.
419	!------------------------------------------------------------------------------
420	DO jj = 1, jpj
421	DO ji = 1, jpi
422	frld (ji,jj) = MIN( frld(ji,jj), ABS( frld(ji,jj) - 2.0 ) )
423	fr_i (ji,jj) = 1.0 - frld(ji,jj)
424	hicifp(ji,jj) = hicif(ji,jj) * fr_i(ji,jj) - hicifp(ji,jj)
425	END DO
426	END DO
427
428	! Outputs
429	!--------------------------------------------------------------------------------
430	ztmp(:,:) = 1. - pfrld(:,:) ! fraction of ice after the dynamic, before the thermodynamic
431	IF( iom_use('ist_cea' ) ) CALL iom_put( 'ist_cea', (sist(:,:) - rt0) * ztmp(:,:) ) ! Ice surface temperature [Celius]
432	IF( iom_use('qsr_ai_cea' ) ) CALL iom_put( 'qsr_ai_cea', qsr_ice(:,:,1) * ztmp(:,:) ) ! Solar flux over the ice [W/m2]
433	IF( iom_use('qns_ai_cea' ) ) CALL iom_put( 'qns_ai_cea', qns_ice(:,:,1) * ztmp(:,:) ) ! Non-solar flux over the ice [W/m2]
434	IF( iom_use('qla_ai_cea' ) .AND. .NOT. ln_cpl ) &
435	& CALL iom_put( 'qla_ai_cea', qla_ice(:,:,1) * ztmp(:,:) ) ! Latent flux over the ice [W/m2]
436	!
437	IF( iom_use('snowthic_cea')) CALL iom_put( 'snowthic_cea', hsnif (:,:) * fr_i(:,:) ) ! Snow thickness [m]
438	IF( iom_use('icethic_cea' )) CALL iom_put( 'icethic_cea' , hicif (:,:) * fr_i(:,:) ) ! Ice thickness [m]
439	zztmp = 1.0 / rdt_ice
440	IF( iom_use('iceprod_cea') ) CALL iom_put( 'iceprod_cea' , hicifp (:,:) * zztmp ) ! Ice produced [m/s]
441	IF( iom_use('iiceconc' ) ) CALL iom_put( 'iiceconc' , fr_i(:,:) ) ! Ice concentration [-]
442	IF( iom_use('snowmel_cea') ) CALL iom_put( 'snowmel_cea' , rdm_snw(:,:) * zztmp ) ! Snow melt [kg/m2/s]
443	zztmp = rhoic / rdt_ice
444	IF( iom_use('sntoice_cea') ) CALL iom_put( 'sntoice_cea' , zdvonif(:,:) * zztmp ) ! Snow to Ice transformation [kg/m2/s]
445	IF( iom_use('ticemel_cea') ) CALL iom_put( 'ticemel_cea' , zdvosif(:,:) * zztmp ) ! Melt at Sea Ice top [kg/m2/s]
446	IF( iom_use('bicemel_cea') ) CALL iom_put( 'bicemel_cea' , zdvomif(:,:) * zztmp ) ! Melt at Sea Ice bottom [kg/m2/s]
447	IF( iom_use('licepro_cea') ) THEN
448	zlicegr(:,:) = MAX( 0.e0, rdm_ice(:,:)-zlicegr(:,:) )
449	CALL iom_put( 'licepro_cea' , zlicegr(:,:) * zztmp ) ! Lateral sea ice growth [kg/m2/s]
450	ENDIF
451	!
452	! Compute the Eastward & Northward sea-ice transport
453	IF( iom_use('u_imasstr') ) THEN
454	zztmp = 0.25 * rhoic
455	DO jj = 1, jpjm1
456	DO ji = 1, jpim1 ! NO vector opt.
457	! Ice velocities, volume & transport at U-points
458	zuice_m = u_ice(ji+1,jj+1) + u_ice(ji+1,jj )
459	zhice_u = hicif(ji,jj)e2t(ji,jj)fr_i(ji,jj) + hicif(ji+1,jj )e2t(ji+1,jj )fr_i(ji+1,jj )
460	zu_imasstr(ji,jj) = zztmp * zhice_u * zuice_m
461	END DO
462	END DO
463	CALL lbc_lnk( zu_imasstr, 'U', -1. )
464	CALL iom_put( 'u_imasstr', zu_imasstr(:,:) ) ! Ice transport along i-axis at U-point [kg/s]
465	ENDIF
466	IF( iom_use('v_imasstr') ) THEN
467	zztmp = 0.25 * rhoic
468	DO jj = 1, jpjm1
469	DO ji = 1, jpim1 ! NO vector opt.
470	! Ice velocities, volume & transport at V-points
471	zvice_m = v_ice(ji+1,jj+1) + v_ice(ji ,jj+1)
472	zhice_v = hicif(ji,jj)e1t(ji,jj)fr_i(ji,jj) + hicif(ji ,jj+1)e1t(ji ,jj+1)fr_i(ji ,jj+1)
473	zv_imasstr(ji,jj) = zztmp * zhice_v * zvice_m
474	END DO
475	END DO
476	CALL lbc_lnk( zv_imasstr, 'V', -1. )
477	CALL iom_put( 'v_imasstr', zv_imasstr(:,:) ) ! Ice transport along j-axis at V-point [kg/s]
478	ENDIF
479
480	!! Fram Strait sea-ice transport (sea-ice + snow) (in ORCA2 = 5 points)
481	IF( iom_use('fram_trans') .and. cn_cfg == "orca" .AND. nn_cfg == 2 ) THEN ! ORCA R2 configuration
482	DO jj = mj0(137), mj1(137) ! B grid
483	IF( mj0(jj-1) >= nldj ) THEN
484	DO ji = MAX(mi0(134),nldi), MIN(mi1(138),nlei)
485	zrhoij = e1t(ji,jj ) * fr_i(ji,jj ) * ( rhoichicif(ji,jj ) + rhosnhsnif(ji,jj ) )
486	zrhoijm1 = e1t(ji,jj-1) * fr_i(ji,jj-1) * ( rhoichicif(ji,jj-1) + rhosnhsnif(ji,jj-1) )
487	ztr_fram = ztr_fram - 0.25 * ( v_ice(ji,jj)+ v_ice(ji+1,jj) ) * ( zrhoij + zrhoijm1 )
488	END DO
489	ENDIF
490	END DO
491	IF( lk_mpp ) CALL mpp_sum( ztr_fram )
492	CALL iom_put( 'fram_trans', ztr_fram ) ! Ice transport through Fram strait [kg/s]
493	ENDIF
494
495	IF( iom_use('ice_pres') .OR. iom_use('ist_ipa') .OR. iom_use('uice_ipa') .OR. iom_use('vice_ipa') ) THEN
496	!! ce ztmp(:,:) = 1. - AINT( frld(:,:), wp ) ! return 1 as soon as there is ice
497	!! ce A big warning because the model crashes on IDRIS/IBM SP6 with xlf 13.1.0.3, see ticket #761
498	!! ce We Unroll the loop and everything works fine
499	DO jj = 1, jpj
500	DO ji = 1, jpi
501	ztmp(ji,jj) = 1. - AINT( frld(ji,jj), wp ) ! return 1 as soon as there is ice
502	END DO
503	END DO
504	!
505	IF( iom_use('ice_pres') ) CALL iom_put( 'ice_pres', ztmp ) ! Ice presence [-]
506	IF( iom_use('ist_ipa' ) ) CALL iom_put( 'ist_ipa' , ( sist(:,:) - rt0 ) * ztmp(:,:) ) ! Ice surface temperature [Celius]
507	IF( iom_use('uice_ipa') ) CALL iom_put( 'uice_ipa', u_ice(:,:) * ztmp(:,:) ) ! Ice velocity along i-axis at I-point [m/s]
508	IF( iom_use('vice_ipa') ) CALL iom_put( 'vice_ipa', v_ice(:,:) * ztmp(:,:) ) ! Ice velocity along j-axis at I-point [m/s]
509	ENDIF
510
511	IF(ln_ctl) THEN
512	CALL prt_ctl_info(' lim_thd end ')
513	CALL prt_ctl( tab2d_1=hicif , clinfo1=' lim_thd: hicif : ', tab2d_2=hsnif , clinfo2=' hsnif : ' )
514	CALL prt_ctl( tab2d_1=frld , clinfo1=' lim_thd: frld : ', tab2d_2=hicifp, clinfo2=' hicifp : ' )
515	CALL prt_ctl( tab2d_1=phicif , clinfo1=' lim_thd: phicif : ', tab2d_2=pfrld , clinfo2=' pfrld : ' )
516	CALL prt_ctl( tab2d_1=sist , clinfo1=' lim_thd: sist : ' )
517	CALL prt_ctl( tab2d_1=tbif(:,:,1), clinfo1=' lim_thd: tbif 1 : ' )
518	CALL prt_ctl( tab2d_1=tbif(:,:,2), clinfo1=' lim_thd: tbif 2 : ' )
519	CALL prt_ctl( tab2d_1=tbif(:,:,3), clinfo1=' lim_thd: tbif 3 : ' )
520	CALL prt_ctl( tab2d_1=fdtcn , clinfo1=' lim_thd: fdtcn : ', tab2d_2=qdtcn , clinfo2=' qdtcn : ' )
521	CALL prt_ctl( tab2d_1=qstoif , clinfo1=' lim_thd: qstoif : ', tab2d_2=fsbbq , clinfo2=' fsbbq : ' )
522	ENDIF
523	!
524	CALL wrk_dealloc( jpi, jpj, ztmp, zqlbsbq, zlicegr, zdvosif, zdvobif, zdvolif, zdvonif, zdvomif, zu_imasstr, zv_imasstr )
525	CALL wrk_dealloc( jpi, jpj, jpk, zmsk )
526	!
527	END SUBROUTINE lim_thd_2
528
529
530	SUBROUTINE lim_thd_init_2
531	!!-------------------------------------------------------------------
532	!! * ROUTINE lim_thd_init_2 *
533	!!
534	!! ** Purpose : Physical constants and parameters linked to the ice
535	!! thermodynamics
536	!!
537	!! ** Method : Read the namicethd namelist and check the ice-thermo
538	!! parameter values called at the first timestep (nit000)
539	!!
540	!! ** input : Namelist namicether
541	!!-------------------------------------------------------------------
542	INTEGER :: ios ! Local integer output status for namelist read
543	NAMELIST/namicethd/ hmelt , hiccrit, hicmin, hiclim, amax , &
544	& swiqst, sbeta , parlat, hakspl, hibspl, exld, &
545	& hakdif, hnzst , thth , parsub, alphs
546	!!-------------------------------------------------------------------
547
548	REWIND( numnam_ice_ref ) ! Namelist namicethd in reference namelist : Ice thermodynamics
549	READ ( numnam_ice_ref, namicethd, IOSTAT = ios, ERR = 901)
550	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicethd in reference namelist', lwp )
551
552	REWIND( numnam_ice_cfg ) ! Namelist namicethd in configuration namelist : Ice thermodynamics
553	READ ( numnam_ice_cfg, namicethd, IOSTAT = ios, ERR = 902 )
554	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicethd in configuration namelist', lwp )
555	IF(lwm) WRITE ( numoni, namicethd )
556
557	IF( ln_cpl .AND. parsub /= 0.0 ) CALL ctl_stop( 'In coupled mode, use parsub = 0. or send dqla' )
558	!
559	IF(lwp) THEN ! control print
560	WRITE(numout,*)
561	WRITE(numout,*)'lim_thd_init_2: ice parameters for ice thermodynamic computation '
562	WRITE(numout,*)'~~~~~~~~~~~~~~'
563	WRITE(numout,*)' maximum melting at the bottom hmelt = ', hmelt
564	WRITE(numout,*)' ice thick. for lateral accretion in NH (SH) hiccrit(1/2) = ', hiccrit
565	WRITE(numout,*)' ice thick. corr. to max. energy stored in brine pocket hicmin = ', hicmin
566	WRITE(numout,*)' minimum ice thickness hiclim = ', hiclim
567	WRITE(numout,*)' maximum lead fraction amax = ', amax
568	WRITE(numout,*)' energy stored in brine pocket (=1) or not (=0) swiqst = ', swiqst
569	WRITE(numout,*)' numerical carac. of the scheme for diffusion in ice '
570	WRITE(numout,*)' Cranck-Nicholson (=0.5), implicit (=1), explicit (=0) sbeta = ', sbeta
571	WRITE(numout,*)' percentage of energy used for lateral ablation parlat = ', parlat
572	WRITE(numout,*)' slope of distr. for Hakkinen-Mellor lateral melting hakspl = ', hakspl
573	WRITE(numout,*)' slope of distribution for Hibler lateral melting hibspl = ', hibspl
574	WRITE(numout,*)' exponent for leads-closure rate exld = ', exld
575	WRITE(numout,*)' coefficient for diffusions of ice and snow hakdif = ', hakdif
576	WRITE(numout,*)' threshold thick. for comp. of eq. thermal conductivity zhth = ', thth
577	WRITE(numout,*)' thickness of the surf. layer in temp. computation hnzst = ', hnzst
578	WRITE(numout,*)' switch for snow sublimation (=1) or not (=0) parsub = ', parsub
579	WRITE(numout,*)' coefficient for snow density when snow ice formation alphs = ', alphs
580	ENDIF
581	!
582	uscomi = 1.0 / ( 1.0 - amax ) ! inverse of minimum lead fraction
583	rcdsn = hakdif * rcdsn
584	rcdic = hakdif * rcdic
585	!
586	IF( hsndif > 100.e0 .OR. hicdif > 100.e0 ) THEN
587	cnscg = 0.e0
588	ELSE
589	cnscg = rcpsn / rcpic ! ratio rcpsn/rcpic
590	ENDIF
591	!
592	END SUBROUTINE lim_thd_init_2
593
594	#else
595	!!----------------------------------------------------------------------
596	!! Default option Dummy module NO LIM 2.0 sea-ice model
597	!!----------------------------------------------------------------------
598	CONTAINS
599	SUBROUTINE lim_thd_2 ! Dummy routine
600	END SUBROUTINE lim_thd_2
601	#endif
602
603	!!======================================================================
604	END MODULE limthd_2

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