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limthd_2.F90 in branches/2015/dev_r5836_NOC3_vvl_by_default/NEMOGCM/NEMO/LIM_SRC_2 – NEMO

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source: branches/2015/dev_r5836_NOC3_vvl_by_default/NEMOGCM/NEMO/LIM_SRC_2/limthd_2.F90 @ 5845

Last change on this file since 5845 was 5845, checked in by gm, 8 years ago
#1613: vvl by default: suppression of domzgr_substitute.h90
Property svn:keywords set to `Id`
File size: 35.1 KB

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

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