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asminc.F90 in branches/UKMO/dev5518_gulf18_changes/NEMOGCM/NEMO/OPA_SRC/ASM – NEMO

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source: branches/UKMO/dev5518_gulf18_changes/NEMOGCM/NEMO/OPA_SRC/ASM/asminc.F90 @ 14034

Last change on this file since 14034 was 14034, checked in by jwhile, 3 years ago
Updates to asminc
File size: 65.8 KB

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1	MODULE asminc
2	!!======================================================================
3	!! * MODULE asminc *
4	!! Assimilation increment : Apply an increment generated by data
5	!! assimilation
6	!!======================================================================
7	!! History : ! 2007-03 (M. Martin) Met Office version
8	!! ! 2007-04 (A. Weaver) calc_date original code
9	!! ! 2007-04 (A. Weaver) Merge with OPAVAR/NEMOVAR
10	!! NEMO 3.3 ! 2010-05 (D. Lea) Update to work with NEMO v3.2
11	!! - ! 2010-05 (D. Lea) add calc_month_len routine based on day_init
12	!! 3.4 ! 2012-10 (A. Weaver and K. Mogensen) Fix for direct initialization
13	!!----------------------------------------------------------------------
14
15	!!----------------------------------------------------------------------
16	!! 'key_asminc' : Switch on the assimilation increment interface
17	!!----------------------------------------------------------------------
18	!! asm_inc_init : Initialize the increment arrays and IAU weights
19	!! calc_date : Compute the calendar date YYYYMMDD on a given step
20	!! tra_asm_inc : Apply the tracer (T and S) increments
21	!! dyn_asm_inc : Apply the dynamic (u and v) increments
22	!! ssh_asm_inc : Apply the SSH increment
23	!! seaice_asm_inc : Apply the sea ice concentration increment
24	!! sit_asm_inc : Apply the sea ice thickness increment
25	!!----------------------------------------------------------------------
26	USE wrk_nemo ! Memory Allocation
27	USE par_oce ! Ocean space and time domain variables
28	USE dom_oce ! Ocean space and time domain
29	USE domvvl ! domain: variable volume level
30	USE oce ! Dynamics and active tracers defined in memory
31	USE ldfdyn_oce ! ocean dynamics: lateral physics
32	USE eosbn2 ! Equation of state - in situ and potential density
33	USE zpshde ! Partial step : Horizontal Derivative
34	USE iom ! Library to read input files
35	USE asmpar ! Parameters for the assmilation interface
36	USE c1d ! 1D initialization
37	USE in_out_manager ! I/O manager
38	USE lib_mpp ! MPP library
39	#if defined key_lim2
40	USE ice_2 ! LIM2
41	#endif
42	USE sbc_oce ! Surface boundary condition variables.
43	USE zdfmxl, ONLY : &
44	& hmld_tref, &
45	#if defined key_karaml
46	& hmld_kara, &
47	& ln_kara, &
48	#endif
49	& hmld, &
50	& hmlp, &
51	& hmlpt
52	#if defined key_bdy
53	USE bdy_oce, ONLY: bdytmask
54	#endif
55	USE asmbgc ! Biogeochemistry assimilation
56
57	IMPLICIT NONE
58	PRIVATE
59
60	PUBLIC asm_inc_init !: Initialize the increment arrays and IAU weights
61	PUBLIC calc_date !: Compute the calendar date YYYYMMDD on a given step
62	PUBLIC tra_asm_inc !: Apply the tracer (T and S) increments
63	PUBLIC dyn_asm_inc !: Apply the dynamic (u and v) increments
64	PUBLIC ssh_asm_inc !: Apply the SSH increment
65	PUBLIC seaice_asm_inc !: Apply the seaice concentration increment
66	PUBLIC sit_asm_inc !: Apply the seaice thickness increment
67	PUBLIC bgc_asm_inc !: Apply the biogeochemistry increments
68
69	#if defined key_asminc
70	LOGICAL, PUBLIC, PARAMETER :: lk_asminc = .TRUE. !: Logical switch for assimilation increment interface
71	#else
72	LOGICAL, PUBLIC, PARAMETER :: lk_asminc = .FALSE. !: No assimilation increments
73	#endif
74	LOGICAL, PUBLIC :: ln_bkgwri = .FALSE. !: No output of the background state fields
75	LOGICAL, PUBLIC :: ln_avgbkg = .FALSE. !: No output of the mean background state fields
76	LOGICAL, PUBLIC :: ln_asmiau = .FALSE. !: No applying forcing with an assimilation increment
77	LOGICAL, PUBLIC :: ln_asmdin = .FALSE. !: No direct initialization
78	LOGICAL, PUBLIC :: ln_trainc = .FALSE. !: No tracer (T and S) assimilation increments
79	LOGICAL, PUBLIC :: ln_dyninc = .FALSE. !: No dynamics (u and v) assimilation increments
80	LOGICAL, PUBLIC :: ln_sshinc = .FALSE. !: No sea surface height assimilation increment
81	LOGICAL, PUBLIC :: ln_seaiceinc = .FALSE. !: No sea ice concentration increment
82	LOGICAL, PUBLIC :: ln_sitinc = .FALSE. !: No sea ice thickness increment
83	LOGICAL, PUBLIC :: lk_bgcinc = .FALSE. !: No biogeochemistry increments
84	LOGICAL, PUBLIC :: ln_salfix = .FALSE. !: Apply minimum salinity check
85	LOGICAL, PUBLIC :: ln_temnofreeze = .FALSE. !: Don't allow the temperature to drop below freezing
86	INTEGER, PUBLIC :: nn_divdmp !: Apply divergence damping filter nn_divdmp times
87
88	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: t_bkg , s_bkg !: Background temperature and salinity
89	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: u_bkg , v_bkg !: Background u- & v- velocity components
90	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: t_bkginc, s_bkginc !: Increment to the background T & S
91	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: u_bkginc, v_bkginc !: Increment to the u- & v-components
92	REAL(wp), PUBLIC, DIMENSION(:) , ALLOCATABLE :: wgtiau !: IAU weights for each time step
93	#if defined key_asminc
94	REAL(wp), PUBLIC, DIMENSION(:,:), ALLOCATABLE :: ssh_iau !: IAU-weighted sea surface height increment
95	#endif
96	! !!! time steps relative to the cycle interval [0,nitend-nit000-1]
97	INTEGER , PUBLIC :: nitbkg !: Time step of the background state used in the Jb term
98	INTEGER , PUBLIC :: nitdin !: Time step of the background state for direct initialization
99	INTEGER , PUBLIC :: nitiaustr !: Time step of the start of the IAU interval
100	INTEGER , PUBLIC :: nitiaufin !: Time step of the end of the IAU interval
101	INTEGER , PUBLIC :: nitavgbkg !: Number of timesteps to average assim bkg [0,nitavgbkg]
102	!
103	INTEGER , PUBLIC :: niaufn !: Type of IAU weighing function: = 0 Constant weighting
104	! !: = 1 Linear hat-like, centred in middle of IAU interval
105	REAL(wp), PUBLIC :: salfixmin !: Ensure that the salinity is larger than this value if (ln_salfix)
106
107	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: ssh_bkg, ssh_bkginc ! Background sea surface height and its increment
108	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: seaice_bkginc ! Increment to the background sea ice conc
109
110	INTEGER :: mld_choice = 4 !: choice of mld criteria to use for physics assimilation
111	!: 1) hmld - Turbocline/mixing depth [W points]
112	!: 2) hmlp - Density criterion (0.01 kg/m^3 change from 10m) [W points]
113	!: 3) hmld_kara - Kara MLD [Interpolated]
114	!: 4) hmld_tref - Temperature criterion (0.2 K change from surface) [T points]
115
116
117	!! * Substitutions
118	# include "domzgr_substitute.h90"
119	# include "ldfdyn_substitute.h90"
120	# include "vectopt_loop_substitute.h90"
121	!!----------------------------------------------------------------------
122	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
123	!! $Id$
124	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
125	!!----------------------------------------------------------------------
126	CONTAINS
127
128	SUBROUTINE asm_inc_init
129	!!----------------------------------------------------------------------
130	!! * ROUTINE asm_inc_init *
131	!!
132	!! ** Purpose : Initialize the assimilation increment and IAU weights.
133	!!
134	!! ** Method : Initialize the assimilation increment and IAU weights.
135	!!
136	!! ** Action :
137	!!----------------------------------------------------------------------
138	INTEGER :: ji, jj, jk, jt ! dummy loop indices
139	INTEGER :: imid, inum ! local integers
140	INTEGER :: ios ! Local integer output status for namelist read
141	INTEGER :: iiauper ! Number of time steps in the IAU period
142	INTEGER :: icycper ! Number of time steps in the cycle
143	INTEGER :: iitend_date ! Date YYYYMMDD of final time step
144	INTEGER :: iitbkg_date ! Date YYYYMMDD of background time step for Jb term
145	INTEGER :: iitdin_date ! Date YYYYMMDD of background time step for DI
146	INTEGER :: iitiaustr_date ! Date YYYYMMDD of IAU interval start time step
147	INTEGER :: iitiaufin_date ! Date YYYYMMDD of IAU interval final time step
148	INTEGER :: isurfstat ! Local integer for status of reading surft variable
149	INTEGER :: iitavgbkg_date ! Date YYYYMMDD of end of assim bkg averaging period
150	!
151	REAL(wp) :: znorm ! Normalization factor for IAU weights
152	REAL(wp) :: ztotwgt ! Value of time-integrated IAU weights (should be equal to one)
153	REAL(wp) :: z_inc_dateb ! Start date of interval on which increment is valid
154	REAL(wp) :: z_inc_datef ! End date of interval on which increment is valid
155	REAL(wp) :: zdate_bkg ! Date in background state file for DI
156	REAL(wp) :: zdate_inc ! Time axis in increments file
157	!
158	REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: &
159	& t_bkginc_2d ! file for reading in 2D
160	! ! temperature increments
161	REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: &
162	& z_mld ! Mixed layer depth
163
164	REAL(wp), POINTER, DIMENSION(:,:) :: hdiv ! 2D workspace
165	!
166	LOGICAL :: lk_surft ! Logical: T => Increments file contains surft variable
167	! so only apply surft increments.
168	CHARACTER(50) :: cn_surftname ! Name of the surft variable in the increments file
169	!!
170	NAMELIST/nam_asminc/ ln_bkgwri, ln_avgbkg, ln_balwri, &
171	& ln_trainc, ln_dyninc, ln_sshinc, &
172	& ln_phytobal, ln_slchltotinc, ln_slchldiainc, &
173	& ln_slchlnaninc, ln_slchlpicinc, ln_slchldininc, &
174	& ln_slchlnoninc, ln_schltotinc, ln_slphytotinc, &
175	& ln_slphydiainc, ln_slphynoninc, ln_spco2inc, &
176	& ln_sfco2inc, ln_plchltotinc, ln_pchltotinc, &
177	& ln_plchldiainc, ln_plchlnaninc, ln_plchlpicinc, &
178	& ln_plchldininc, &
179	& ln_pno3inc, ln_psi4inc, ln_pdicinc, ln_palkinc, &
180	& ln_pphinc, ln_po2inc, ln_ppo4inc, &
181	& ln_asmdin, ln_asmiau, &
182	& nitbkg, nitdin, nitiaustr, nitiaufin, niaufn, &
183	& ln_salfix, salfixmin, nn_divdmp, nitavgbkg, &
184	& mld_choice, mld_choice_bgc, rn_maxchlinc, &
185	& cn_surftname
186
187	!!----------------------------------------------------------------------
188
189	!-----------------------------------------------------------------------
190	! Read Namelist nam_asminc : assimilation increment interface
191	!-----------------------------------------------------------------------
192
193	! Set default values
194	ln_bkgwri = .FALSE.
195	ln_avgbkg = .FALSE.
196	ln_trainc = .FALSE.
197	ln_dyninc = .FALSE.
198	ln_sshinc = .FALSE.
199	ln_asmdin = .FALSE.
200	ln_asmiau = .TRUE.
201	ln_salfix = .FALSE.
202
203	ln_seaiceinc = .FALSE.
204	ln_sitinc = .FALSE.
205	ln_temnofreeze = .FALSE.
206
207	salfixmin = -9999
208	nitbkg = 0
209	nitdin = 0
210	nitiaustr = 1
211	nitiaufin = 150
212	niaufn = 0
213	nitavgbkg = 1
214	cn_surftname = "surft"
215
216	REWIND( numnam_ref ) ! Namelist nam_asminc in reference namelist : Assimilation increment
217	READ ( numnam_ref, nam_asminc, IOSTAT = ios, ERR = 901)
218	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nam_asminc in reference namelist', lwp )
219
220	REWIND( numnam_cfg ) ! Namelist nam_asminc in configuration namelist : Assimilation increment
221	READ ( numnam_cfg, nam_asminc, IOSTAT = ios, ERR = 902 )
222	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nam_asminc in configuration namelist', lwp )
223	IF(lwm) WRITE ( numond, nam_asminc )
224
225	! Control print
226	IF(lwp) THEN
227	WRITE(numout,*)
228	WRITE(numout,*) 'asm_inc_init : Assimilation increment initialization :'
229	WRITE(numout,*) '~~~~~~~~~~~~'
230	WRITE(numout,*) ' Namelist nam_asminc : set assimilation increment parameters'
231	WRITE(numout,*) ' Logical switch for writing out background state ln_bkgwri = ', ln_bkgwri
232	WRITE(numout,*) ' Logical switch for writing mean background state ln_avgbkg = ', ln_avgbkg
233	WRITE(numout,*) ' Logical switch for writing out balancing increments ln_balwri = ', ln_balwri
234	WRITE(numout,*) ' Logical switch for applying tracer increments ln_trainc = ', ln_trainc
235	WRITE(numout,*) ' Logical switch for applying velocity increments ln_dyninc = ', ln_dyninc
236	WRITE(numout,*) ' Logical switch for applying SSH increments ln_sshinc = ', ln_sshinc
237	WRITE(numout,*) ' Logical switch for applying SIC increments ln_seaiceinc = ', ln_seaiceinc
238	WRITE(numout,*) ' Logical switch for applying SIT increments ln_sitinc = ', ln_sitinc
239	WRITE(numout,*) ' Logical switch for Direct Initialization (DI) ln_asmdin = ', ln_asmdin
240	WRITE(numout,*) ' Logical switch for Incremental Analysis Updating (IAU) ln_asmiau = ', ln_asmiau
241	WRITE(numout,*) ' Timestep of background in [0,nitend-nit000-1] nitbkg = ', nitbkg
242	WRITE(numout,*) ' Timestep of background for DI in [0,nitend-nit000-1] nitdin = ', nitdin
243	WRITE(numout,*) ' Timestep of start of IAU interval in [0,nitend-nit000-1] nitiaustr = ', nitiaustr
244	WRITE(numout,*) ' Timestep of end of IAU interval in [0,nitend-nit000-1] nitiaufin = ', nitiaufin
245	WRITE(numout,*) ' Number of timesteps to average assim bkg [0,nitavgbkg] nitavgbkg = ', nitavgbkg
246	WRITE(numout,*) ' Type of IAU weighting function niaufn = ', niaufn
247	WRITE(numout,*) ' Logical switch for ensuring that the sa > salfixmin ln_salfix = ', ln_salfix
248	WRITE(numout,*) ' Minimum salinity after applying the increments salfixmin = ', salfixmin
249	WRITE(numout,*) ' Choice of MLD for physics assimilation mld_choice = ', mld_choice
250	WRITE(numout,*) ' Choice of MLD for BGC assimilation mld_choice_bgc = ', mld_choice_bgc
251	WRITE(numout,*) ' Maximum absolute chlorophyll increment (<=0 = off) rn_maxchlinc = ', rn_maxchlinc
252	WRITE(numout,*) ' Logical switch for phytoplankton balancing ln_phytobal = ', ln_phytobal
253	WRITE(numout,*) ' Logical switch for applying slchltot increments ln_slchltotinc = ', ln_slchltotinc
254	WRITE(numout,*) ' Logical switch for applying slchldia increments ln_slchldiainc = ', ln_slchldiainc
255	WRITE(numout,*) ' Logical switch for applying slchlnon increments ln_slchlnoninc = ', ln_slchlnoninc
256	WRITE(numout,*) ' Logical switch for applying slchlnan increments ln_slchlnaninc = ', ln_slchlnaninc
257	WRITE(numout,*) ' Logical switch for applying slchlpic increments ln_slchlpicinc = ', ln_slchlpicinc
258	WRITE(numout,*) ' Logical switch for applying slchldin increments ln_slchldininc = ', ln_slchldininc
259	WRITE(numout,*) ' Logical switch for applying schltot increments ln_schltotinc = ', ln_schltotinc
260	WRITE(numout,*) ' Logical switch for applying slphytot increments ln_slphytotinc = ', ln_slphytotinc
261	WRITE(numout,*) ' Logical switch for applying slphydia increments ln_slphydiainc = ', ln_slphydiainc
262	WRITE(numout,*) ' Logical switch for applying slphynon increments ln_slphynoninc = ', ln_slphynoninc
263	WRITE(numout,*) ' Logical switch for applying spco2 increments ln_spco2inc = ', ln_spco2inc
264	WRITE(numout,*) ' Logical switch for applying sfco2 increments ln_sfco2inc = ', ln_sfco2inc
265	WRITE(numout,*) ' Logical switch for applying plchltot increments ln_plchltotinc = ', ln_plchltotinc
266	WRITE(numout,*) ' Logical switch for applying pchltot increments ln_pchltotinc = ', ln_pchltotinc
267	WRITE(numout,*) ' Logical switch for applying plchldia increments ln_plchldiainc = ', ln_plchldiainc
268	WRITE(numout,*) ' Logical switch for applying plchlnan increments ln_plchlnaninc = ', ln_plchlnaninc
269	WRITE(numout,*) ' Logical switch for applying plchlpic increments ln_plchlpicinc = ', ln_plchlpicinc
270	WRITE(numout,*) ' Logical switch for applying plchldin increments ln_plchldininc = ', ln_plchldininc
271	WRITE(numout,*) ' Logical switch for applying pno3 increments ln_pno3inc = ', ln_pno3inc
272	WRITE(numout,*) ' Logical switch for applying psi4 increments ln_psi4inc = ', ln_psi4inc
273	WRITE(numout,*) ' Logical switch for applying ppo4 increments ln_ppo4inc = ', ln_ppo4inc
274	WRITE(numout,*) ' Logical switch for applying pdic increments ln_pdicinc = ', ln_pdicinc
275	WRITE(numout,*) ' Logical switch for applying palk increments ln_palkinc = ', ln_palkinc
276	WRITE(numout,*) ' Logical switch for applying pph increments ln_pphinc = ', ln_pphinc
277	WRITE(numout,*) ' Logical switch for applying po2 increments ln_po2inc = ', ln_po2inc
278	WRITE(numout,*) ' Surface temperature variable name (if applicable) cn_surftname = ', cn_surftname
279	ENDIF
280
281	nitbkg_r = nitbkg + nit000 - 1 ! Background time referenced to nit000
282	nitdin_r = nitdin + nit000 - 1 ! Background time for DI referenced to nit000
283	nitiaustr_r = nitiaustr + nit000 - 1 ! Start of IAU interval referenced to nit000
284	nitiaufin_r = nitiaufin + nit000 - 1 ! End of IAU interval referenced to nit000
285	nitavgbkg_r = nitavgbkg + nit000 - 1 ! Averaging period referenced to nit000
286
287	iiauper = nitiaufin_r - nitiaustr_r + 1 ! IAU interval length
288	icycper = nitend - nit000 + 1 ! Cycle interval length
289
290	CALL calc_date( nit000, nitend , ndate0, iitend_date ) ! Date of final time step
291	CALL calc_date( nit000, nitbkg_r , ndate0, iitbkg_date ) ! Background time for Jb referenced to ndate0
292	CALL calc_date( nit000, nitdin_r , ndate0, iitdin_date ) ! Background time for DI referenced to ndate0
293	CALL calc_date( nit000, nitiaustr_r, ndate0, iitiaustr_date ) ! IAU start time referenced to ndate0
294	CALL calc_date( nit000, nitiaufin_r, ndate0, iitiaufin_date ) ! IAU end time referenced to ndate0
295	CALL calc_date( nit000, nitavgbkg_r, ndate0, iitavgbkg_date ) ! End of assim bkg averaging period referenced to ndate0
296	!
297	IF(lwp) THEN
298	WRITE(numout,*)
299	WRITE(numout,*) ' Time steps referenced to current cycle:'
300	WRITE(numout,*) ' iitrst = ', nit000 - 1
301	WRITE(numout,*) ' nit000 = ', nit000
302	WRITE(numout,*) ' nitend = ', nitend
303	WRITE(numout,*) ' nitbkg_r = ', nitbkg_r
304	WRITE(numout,*) ' nitdin_r = ', nitdin_r
305	WRITE(numout,*) ' nitiaustr_r = ', nitiaustr_r
306	WRITE(numout,*) ' nitiaufin_r = ', nitiaufin_r
307	WRITE(numout,*) ' nitavgbkg_r = ', nitavgbkg_r
308	WRITE(numout,*)
309	WRITE(numout,*) ' Dates referenced to current cycle:'
310	WRITE(numout,*) ' ndastp = ', ndastp
311	WRITE(numout,*) ' ndate0 = ', ndate0
312	WRITE(numout,*) ' iitend_date = ', iitend_date
313	WRITE(numout,*) ' iitbkg_date = ', iitbkg_date
314	WRITE(numout,*) ' iitdin_date = ', iitdin_date
315	WRITE(numout,*) ' iitiaustr_date = ', iitiaustr_date
316	WRITE(numout,*) ' iitiaufin_date = ', iitiaufin_date
317	WRITE(numout,*) ' iitavgbkg_date = ', iitavgbkg_date
318	ENDIF
319	IF ( ln_slchltotinc .OR. ln_slchldiainc .OR. ln_slchlnoninc .OR. &
320	& ln_slchlnaninc .OR. ln_slchlpicinc .OR. ln_slchldininc .OR. &
321	& ln_schltotinc .OR. ln_slphytotinc .OR. ln_slphydiainc .OR. &
322	& ln_slphynoninc .OR. ln_spco2inc .OR. ln_sfco2inc .OR. &
323	& ln_plchltotinc .OR. ln_pchltotinc .OR. ln_plchldiainc .OR. &
324	& ln_plchlnaninc .OR. ln_plchlpicinc .OR. ln_plchldininc .OR. &
325	& ln_pno3inc .OR. &
326	& ln_psi4inc .OR. ln_pdicinc .OR. ln_palkinc .OR. &
327	& ln_pphinc .OR. ln_po2inc .OR. ln_ppo4inc ) THEN
328	lk_bgcinc = .TRUE.
329	ENDIF
330
331	IF ( nacc /= 0 ) &
332	& CALL ctl_stop( ' nacc /= 0 and key_asminc :', &
333	& ' Assimilation increments have only been implemented', &
334	& ' for synchronous time stepping' )
335
336	IF ( ( ln_asmdin ).AND.( ln_asmiau ) ) &
337	& CALL ctl_stop( ' ln_asmdin and ln_asmiau :', &
338	& ' Choose Direct Initialization OR Incremental Analysis Updating')
339
340	IF ( ( ( .NOT. ln_asmdin ).AND.( .NOT. ln_asmiau ) ) &
341	& .AND.( ( ln_trainc ).OR.( ln_dyninc ).OR.( ln_sshinc ).OR.( ln_seaiceinc ).OR. &
342	& ( ln_sitinc ).OR.( lk_bgcinc ) )) &
343	& CALL ctl_stop( ' One or more of ln_trainc, ln_dyninc, ln_sshinc, ln_seaiceinc,', &
344	& ' ln_sitinc and ln_(bgc-variable)inc is set to .true.', &
345	& ' but ln_asmdin and ln_asmiau are both set to .false. :', &
346	& ' Inconsistent options')
347
348	IF ( ( niaufn /= 0 ).AND.( niaufn /= 1 ) ) &
349	& CALL ctl_stop( ' niaufn /= 0 or niaufn /=1 :', &
350	& ' Type IAU weighting function is invalid')
351
352	IF ( ( .NOT. ln_trainc ).AND.( .NOT. ln_dyninc ).AND.( .NOT. ln_sshinc ).AND.( .NOT. ln_seaiceinc ) &
353	& .AND.( .NOT. ln_sitinc ).AND.( .NOT. lk_bgcinc ) ) &
354	& CALL ctl_warn( ' ln_trainc, ln_dyninc, ln_sshinc, ln_seaiceinc,', &
355	& ' ln_sitinc and ln_(bgc-variable)inc are set to .false. :', &
356	& ' The assimilation increments are not applied')
357
358	IF ( ( ln_asmiau ).AND.( nitiaustr == nitiaufin ) ) &
359	& CALL ctl_stop( ' nitiaustr = nitiaufin :', &
360	& ' IAU interval is of zero length')
361
362	IF ( ( ln_asmiau ).AND.( ( nitiaustr_r < nit000 ).OR.( nitiaufin_r > nitend ) ) ) &
363	& CALL ctl_stop( ' nitiaustr or nitiaufin :', &
364	& ' IAU starting or final time step is outside the cycle interval', &
365	& ' Valid range nit000 to nitend')
366
367	IF ( ( nitbkg_r < nit000 - 1 ).OR.( nitbkg_r > nitend ) ) &
368	& CALL ctl_stop( ' nitbkg :', &
369	& ' Background time step is outside the cycle interval')
370
371	IF ( ( nitdin_r < nit000 - 1 ).OR.( nitdin_r > nitend ) ) &
372	& CALL ctl_stop( ' nitdin :', &
373	& ' Background time step for Direct Initialization is outside', &
374	& ' the cycle interval')
375
376	IF ( nitavgbkg_r > nitend ) &
377	& CALL ctl_stop( ' nitavgbkg_r :', &
378	& ' Assim bkg averaging period is outside', &
379	& ' the cycle interval')
380
381	IF ( lk_bgcinc ) CALL asm_bgc_check_options
382
383	IF ( nstop > 0 ) RETURN ! if there are any errors then go no further
384
385	!--------------------------------------------------------------------
386	! Initialize the Incremental Analysis Updating weighting function
387	!--------------------------------------------------------------------
388
389	IF ( ln_asmiau ) THEN
390
391	ALLOCATE( wgtiau( icycper ) )
392
393	wgtiau(:) = 0.0
394
395	IF ( niaufn == 0 ) THEN
396
397	!---------------------------------------------------------
398	! Constant IAU forcing
399	!---------------------------------------------------------
400
401	DO jt = 1, iiauper
402	wgtiau(jt+nitiaustr-1) = 1.0 / REAL( iiauper )
403	END DO
404
405	ELSEIF ( niaufn == 1 ) THEN
406
407	!---------------------------------------------------------
408	! Linear hat-like, centred in middle of IAU interval
409	!---------------------------------------------------------
410
411	! Compute the normalization factor
412	znorm = 0.0
413	IF ( MOD( iiauper, 2 ) == 0 ) THEN ! Even number of time steps in IAU interval
414	imid = iiauper / 2
415	DO jt = 1, imid
416	znorm = znorm + REAL( jt )
417	END DO
418	znorm = 2.0 * znorm
419	ELSE ! Odd number of time steps in IAU interval
420	imid = ( iiauper + 1 ) / 2
421	DO jt = 1, imid - 1
422	znorm = znorm + REAL( jt )
423	END DO
424	znorm = 2.0 * znorm + REAL( imid )
425	ENDIF
426	znorm = 1.0 / znorm
427
428	DO jt = 1, imid - 1
429	wgtiau(jt+nitiaustr-1) = REAL( jt ) * znorm
430	END DO
431	DO jt = imid, iiauper
432	wgtiau(jt+nitiaustr-1) = REAL( iiauper - jt + 1 ) * znorm
433	END DO
434
435	ENDIF
436
437	! Test that the integral of the weights over the weighting interval equals 1
438	IF(lwp) THEN
439	WRITE(numout,*)
440	WRITE(numout,*) 'asm_inc_init : IAU weights'
441	WRITE(numout,*) '~~~~~~~~~~~~'
442	WRITE(numout,*) ' time step IAU weight'
443	WRITE(numout,*) ' ========= ====================='
444	ztotwgt = 0.0
445	DO jt = 1, icycper
446	ztotwgt = ztotwgt + wgtiau(jt)
447	WRITE(numout,*) ' ', jt, ' ', wgtiau(jt)
448	END DO
449	WRITE(numout,*) ' ==================================='
450	WRITE(numout,*) ' Time-integrated weight = ', ztotwgt
451	WRITE(numout,*) ' ==================================='
452	ENDIF
453
454	ENDIF
455
456	!--------------------------------------------------------------------
457	! Allocate and initialize the increment arrays
458	!--------------------------------------------------------------------
459
460	IF ( ln_trainc ) THEN
461	ALLOCATE( t_bkginc(jpi,jpj,jpk) )
462	ALLOCATE( s_bkginc(jpi,jpj,jpk) )
463	t_bkginc(:,:,:) = 0.0
464	s_bkginc(:,:,:) = 0.0
465	ENDIF
466	IF ( ln_dyninc ) THEN
467	ALLOCATE( u_bkginc(jpi,jpj,jpk) )
468	ALLOCATE( v_bkginc(jpi,jpj,jpk) )
469	u_bkginc(:,:,:) = 0.0
470	v_bkginc(:,:,:) = 0.0
471	ENDIF
472	IF ( ln_sshinc ) THEN
473	ALLOCATE( ssh_bkginc(jpi,jpj) )
474	ssh_bkginc(:,:) = 0.0
475	ENDIF
476	IF ( ln_seaiceinc ) THEN
477	ALLOCATE( seaice_bkginc(jpi,jpj))
478	seaice_bkginc(:,:) = 0.0
479	ENDIF
480	IF ( ln_sitinc ) THEN
481	ALLOCATE( sit_bkginc(jpi,jpj))
482	sit_bkginc(:,:) = 0.0
483	ENDIF
484	#if defined key_asminc
485	ALLOCATE( ssh_iau(jpi,jpj) )
486	ssh_iau(:,:) = 0.0
487	#endif
488	IF ( ( ln_trainc ).OR.( ln_dyninc ).OR.( ln_sshinc ).OR.( ln_seaiceinc ) &
489	& .OR.( ln_sitinc ).OR.( lk_bgcinc ) ) THEN
490
491	!--------------------------------------------------------------------
492	! Read the increments from file
493	!--------------------------------------------------------------------
494
495	CALL iom_open( c_asminc, inum )
496
497	CALL iom_get( inum, 'time', zdate_inc )
498
499	CALL iom_get( inum, 'z_inc_dateb', z_inc_dateb )
500	CALL iom_get( inum, 'z_inc_datef', z_inc_datef )
501	z_inc_dateb = zdate_inc
502	z_inc_datef = zdate_inc
503
504	IF(lwp) THEN
505	WRITE(numout,*)
506	WRITE(numout,*) 'asm_inc_init : Assimilation increments valid ', &
507	& ' between dates ', NINT( z_inc_dateb ),' and ', &
508	& NINT( z_inc_datef )
509	WRITE(numout,*) '~~~~~~~~~~~~'
510	ENDIF
511
512	IF ( ( NINT( z_inc_dateb ) < ndastp ) &
513	& .OR.( NINT( z_inc_datef ) > iitend_date ) ) &
514	& CALL ctl_warn( ' Validity time of assimilation increments is ', &
515	& ' outside the assimilation interval' )
516
517	IF ( ( ln_asmdin ).AND.( NINT( zdate_inc ) /= iitdin_date ) ) &
518	& CALL ctl_warn( ' Validity time of assimilation increments does ', &
519	& ' not agree with Direct Initialization time' )
520
521	IF ( ln_trainc ) THEN
522
523	!Test if the increments file contains the surft variable.
524	isurfstat = iom_varid( inum, 'bckin'//TRIM(cn_surftname), ldstop = .FALSE. )
525	IF ( isurfstat == -1 ) THEN
526	lk_surft = .FALSE.
527	ELSE
528	lk_surft = .TRUE.
529	CALL ctl_warn( ' Applying 2D temperature increment to bottom of ML: ', &
530	& ' bckin'//TRIM(cn_surftname)//' found in increments file.' )
531	ENDIF
532
533	IF (lk_surft) THEN
534
535	ALLOCATE(z_mld(jpi,jpj))
536	SELECT CASE(mld_choice)
537	CASE(1)
538	z_mld = hmld
539	CASE(2)
540	z_mld = hmlp
541	CASE(3)
542	#if defined key_karaml
543	IF ( ln_kara ) THEN
544	z_mld = hmld_kara
545	ELSE
546	CALL ctl_stop("Kara mixed layer not calculated as ln_kara=.false.")
547	ENDIF
548	#else
549	CALL ctl_stop("Kara mixed layer not defined in current version of NEMO") ! JW: Safety feature, should be removed
550	! once the Kara mixed layer is available
551	#endif
552	CASE(4)
553	z_mld = hmld_tref
554	END SELECT
555
556	ALLOCATE( t_bkginc_2d(jpi,jpj) )
557	CALL iom_get( inum, jpdom_autoglo, 'bckin'//TRIM(cn_surftname), t_bkginc_2d, 1)
558	#if defined key_bdy
559	DO jk = 1,jpkm1
560	WHERE( z_mld(:,:) > fsdepw(:,:,jk) )
561	t_bkginc(:,:,jk) = t_bkginc_2d(:,:) * 0.5 * &
562	& ( 1 + cos( (fsdept(:,:,jk)/z_mld(:,:) ) * rpi ) )
563
564	t_bkginc(:,:,jk) = t_bkginc(:,:,jk) * bdytmask(:,:)
565	ELSEWHERE
566	t_bkginc(:,:,jk) = 0.
567	ENDWHERE
568	ENDDO
569	#else
570	t_bkginc(:,:,:) = 0.
571	#endif
572	s_bkginc(:,:,:) = 0.
573
574	DEALLOCATE(z_mld, t_bkginc_2d)
575
576	ELSE
577
578	CALL iom_get( inum, jpdom_autoglo, 'bckint', t_bkginc, 1 )
579	CALL iom_get( inum, jpdom_autoglo, 'bckins', s_bkginc, 1 )
580	! Apply the masks
581	t_bkginc(:,:,:) = t_bkginc(:,:,:) * tmask(:,:,:)
582	s_bkginc(:,:,:) = s_bkginc(:,:,:) * tmask(:,:,:)
583	! Set missing increments to 0.0 rather than 1e+20
584	! to allow for differences in masks
585	WHERE( ABS( t_bkginc(:,:,:) ) > 1.0e+10 ) t_bkginc(:,:,:) = 0.0
586	WHERE( ABS( s_bkginc(:,:,:) ) > 1.0e+10 ) s_bkginc(:,:,:) = 0.0
587
588	ENDIF
589
590	ENDIF
591
592	IF ( ln_dyninc ) THEN
593	CALL iom_get( inum, jpdom_autoglo, 'bckinu', u_bkginc, 1 )
594	CALL iom_get( inum, jpdom_autoglo, 'bckinv', v_bkginc, 1 )
595	! Apply the masks
596	u_bkginc(:,:,:) = u_bkginc(:,:,:) * umask(:,:,:)
597	v_bkginc(:,:,:) = v_bkginc(:,:,:) * vmask(:,:,:)
598	! Set missing increments to 0.0 rather than 1e+20
599	! to allow for differences in masks
600	WHERE( ABS( u_bkginc(:,:,:) ) > 1.0e+10 ) u_bkginc(:,:,:) = 0.0
601	WHERE( ABS( v_bkginc(:,:,:) ) > 1.0e+10 ) v_bkginc(:,:,:) = 0.0
602	ENDIF
603
604	IF ( ln_sshinc ) THEN
605	CALL iom_get( inum, jpdom_autoglo, 'bckineta', ssh_bkginc, 1 )
606	! Apply the masks
607	ssh_bkginc(:,:) = ssh_bkginc(:,:) * tmask(:,:,1)
608	! Set missing increments to 0.0 rather than 1e+20
609	! to allow for differences in masks
610	WHERE( ABS( ssh_bkginc(:,:) ) > 1.0e+10 ) ssh_bkginc(:,:) = 0.0
611	ENDIF
612
613	IF ( ln_seaiceinc ) THEN
614	CALL iom_get( inum, jpdom_autoglo, 'bckinseaice', seaice_bkginc, 1 )
615	! Apply the masks
616	seaice_bkginc(:,:) = seaice_bkginc(:,:) * tmask(:,:,1)
617	! Set missing increments to 0.0 rather than 1e+20
618	! to allow for differences in masks
619	WHERE( ABS( seaice_bkginc(:,:) ) > 1.0e+10 ) seaice_bkginc(:,:) = 0.0
620	ENDIF
621
622	IF ( lk_bgcinc ) THEN
623	CALL asm_bgc_init_incs( inum )
624	ENDIF
625
626	CALL iom_close( inum )
627
628	ENDIF
629
630	!-----------------------------------------------------------------------
631	! Apply divergence damping filter
632	!-----------------------------------------------------------------------
633
634	IF ( ln_dyninc .AND. nn_divdmp > 0 ) THEN
635
636	CALL wrk_alloc(jpi,jpj,hdiv)
637
638	DO jt = 1, nn_divdmp
639
640	DO jk = 1, jpkm1
641
642	hdiv(:,:) = 0._wp
643
644	DO jj = 2, jpjm1
645	DO ji = fs_2, fs_jpim1 ! vector opt.
646	hdiv(ji,jj) = &
647	( e2u(ji ,jj ) * fse3u(ji ,jj ,jk) * u_bkginc(ji ,jj ,jk) &
648	- e2u(ji-1,jj ) * fse3u(ji-1,jj ,jk) * u_bkginc(ji-1,jj ,jk) &
649	+ e1v(ji ,jj ) * fse3v(ji ,jj ,jk) * v_bkginc(ji ,jj ,jk) &
650	- e1v(ji ,jj-1) * fse3v(ji ,jj-1,jk) * v_bkginc(ji ,jj-1,jk) ) &
651	/ ( e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) )
652	END DO
653	END DO
654
655	CALL lbc_lnk( hdiv, 'T', 1. ) ! lateral boundary cond. (no sign change)
656
657	DO jj = 2, jpjm1
658	DO ji = fs_2, fs_jpim1 ! vector opt.
659	u_bkginc(ji,jj,jk) = u_bkginc(ji,jj,jk) + 0.2_wp * ( e1t(ji+1,jj)e2t(ji+1,jj) hdiv(ji+1,jj) &
660	- e1t(ji ,jj)e2t(ji ,jj) hdiv(ji ,jj) ) &
661	/ e1u(ji,jj) * umask(ji,jj,jk)
662	v_bkginc(ji,jj,jk) = v_bkginc(ji,jj,jk) + 0.2_wp * ( e1t(ji,jj+1)e2t(ji,jj+1) hdiv(ji,jj+1) &
663	- e1t(ji,jj )e2t(ji,jj ) hdiv(ji,jj ) ) &
664	/ e2v(ji,jj) * vmask(ji,jj,jk)
665	END DO
666	END DO
667
668	END DO
669
670	END DO
671
672	CALL wrk_dealloc(jpi,jpj,hdiv)
673
674	ENDIF
675
676
677
678	!-----------------------------------------------------------------------
679	! Allocate and initialize the background state arrays
680	!-----------------------------------------------------------------------
681
682	IF ( ln_asmdin ) THEN
683
684	ALLOCATE( t_bkg(jpi,jpj,jpk) )
685	ALLOCATE( s_bkg(jpi,jpj,jpk) )
686	ALLOCATE( u_bkg(jpi,jpj,jpk) )
687	ALLOCATE( v_bkg(jpi,jpj,jpk) )
688	ALLOCATE( ssh_bkg(jpi,jpj) )
689
690	t_bkg(:,:,:) = 0.0
691	s_bkg(:,:,:) = 0.0
692	u_bkg(:,:,:) = 0.0
693	v_bkg(:,:,:) = 0.0
694	ssh_bkg(:,:) = 0.0
695
696	!--------------------------------------------------------------------
697	! Read from file the background state at analysis time
698	!--------------------------------------------------------------------
699
700	CALL iom_open( c_asmdin, inum )
701
702	CALL iom_get( inum, 'rdastp', zdate_bkg )
703
704	IF(lwp) THEN
705	WRITE(numout,*)
706	WRITE(numout,*) 'asm_inc_init : Assimilation background state valid at : ', &
707	& NINT( zdate_bkg )
708	WRITE(numout,*) '~~~~~~~~~~~~'
709	ENDIF
710
711	IF ( NINT( zdate_bkg ) /= iitdin_date ) &
712	& CALL ctl_warn( ' Validity time of assimilation background state does', &
713	& ' not agree with Direct Initialization time' )
714
715	IF ( ln_trainc ) THEN
716	CALL iom_get( inum, jpdom_autoglo, 'tn', t_bkg )
717	CALL iom_get( inum, jpdom_autoglo, 'sn', s_bkg )
718	t_bkg(:,:,:) = t_bkg(:,:,:) * tmask(:,:,:)
719	s_bkg(:,:,:) = s_bkg(:,:,:) * tmask(:,:,:)
720	ENDIF
721
722	IF ( ln_dyninc ) THEN
723	CALL iom_get( inum, jpdom_autoglo, 'un', u_bkg )
724	CALL iom_get( inum, jpdom_autoglo, 'vn', v_bkg )
725	u_bkg(:,:,:) = u_bkg(:,:,:) * umask(:,:,:)
726	v_bkg(:,:,:) = v_bkg(:,:,:) * vmask(:,:,:)
727	ENDIF
728
729	IF ( ln_sshinc ) THEN
730	CALL iom_get( inum, jpdom_autoglo, 'sshn', ssh_bkg )
731	ssh_bkg(:,:) = ssh_bkg(:,:) * tmask(:,:,1)
732	ENDIF
733
734	CALL iom_close( inum )
735
736	ENDIF
737
738	IF ( lk_bgcinc ) THEN
739	CALL asm_bgc_init_bkg
740	ENDIF
741	!
742	END SUBROUTINE asm_inc_init
743
744
745	SUBROUTINE calc_date( kit000, kt, kdate0, kdate )
746	!!----------------------------------------------------------------------
747	!! * ROUTINE calc_date *
748	!!
749	!! ** Purpose : Compute the calendar date YYYYMMDD at a given time step.
750	!!
751	!! ** Method : Compute the calendar date YYYYMMDD at a given time step.
752	!!
753	!! ** Action :
754	!!----------------------------------------------------------------------
755	INTEGER, INTENT(IN) :: kit000 ! Initial time step
756	INTEGER, INTENT(IN) :: kt ! Current time step referenced to kit000
757	INTEGER, INTENT(IN) :: kdate0 ! Initial date
758	INTEGER, INTENT(OUT) :: kdate ! Current date reference to kdate0
759	!
760	INTEGER :: iyea0 ! Initial year
761	INTEGER :: imon0 ! Initial month
762	INTEGER :: iday0 ! Initial day
763	INTEGER :: iyea ! Current year
764	INTEGER :: imon ! Current month
765	INTEGER :: iday ! Current day
766	INTEGER :: idaystp ! Number of days between initial and current date
767	INTEGER :: idaycnt ! Day counter
768
769	INTEGER, DIMENSION(12) :: imonth_len !: length in days of the months of the current year
770
771	!-----------------------------------------------------------------------
772	! Compute the calendar date YYYYMMDD
773	!-----------------------------------------------------------------------
774
775	! Initial date
776	iyea0 = kdate0 / 10000
777	imon0 = ( kdate0 - ( iyea0 * 10000 ) ) / 100
778	iday0 = kdate0 - ( iyea0 * 10000 ) - ( imon0 * 100 )
779
780	! Check that kt >= kit000 - 1
781	IF ( kt < kit000 - 1 ) CALL ctl_stop( ' kt must be >= kit000 - 1')
782
783	! If kt = kit000 - 1 then set the date to the restart date
784	IF ( kt == kit000 - 1 ) THEN
785
786	kdate = ndastp
787	RETURN
788
789	ENDIF
790
791	! Compute the number of days from the initial date
792	idaystp = INT( REAL( kt - kit000 ) * rdt / 86400. )
793
794	iday = iday0
795	imon = imon0
796	iyea = iyea0
797	idaycnt = 0
798
799	CALL calc_month_len( iyea, imonth_len )
800
801	DO WHILE ( idaycnt < idaystp )
802	iday = iday + 1
803	IF ( iday > imonth_len(imon) ) THEN
804	iday = 1
805	imon = imon + 1
806	ENDIF
807	IF ( imon > 12 ) THEN
808	imon = 1
809	iyea = iyea + 1
810	CALL calc_month_len( iyea, imonth_len ) ! update month lengths
811	ENDIF
812	idaycnt = idaycnt + 1
813	END DO
814	!
815	kdate = iyea * 10000 + imon * 100 + iday
816	!
817	END SUBROUTINE
818
819
820	SUBROUTINE calc_month_len( iyear, imonth_len )
821	!!----------------------------------------------------------------------
822	!! * ROUTINE calc_month_len *
823	!!
824	!! ** Purpose : Compute the number of days in a months given a year.
825	!!
826	!! ** Method :
827	!!----------------------------------------------------------------------
828	INTEGER, DIMENSION(12) :: imonth_len !: length in days of the months of the current year
829	INTEGER :: iyear !: year
830	!!----------------------------------------------------------------------
831	!
832	! length of the month of the current year (from nleapy, read in namelist)
833	IF ( nleapy < 2 ) THEN
834	imonth_len(:) = (/ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 /)
835	IF ( nleapy == 1 ) THEN ! we are using calendar with leap years
836	IF ( MOD(iyear, 4) == 0 .AND. ( MOD(iyear, 400) == 0 .OR. MOD(iyear, 100) /= 0 ) ) THEN
837	imonth_len(2) = 29
838	ENDIF
839	ENDIF
840	ELSE
841	imonth_len(:) = nleapy ! all months with nleapy days per year
842	ENDIF
843	!
844	END SUBROUTINE
845
846
847	SUBROUTINE tra_asm_inc( kt )
848	!!----------------------------------------------------------------------
849	!! * ROUTINE tra_asm_inc *
850	!!
851	!! ** Purpose : Apply the tracer (T and S) assimilation increments
852	!!
853	!! ** Method : Direct initialization or Incremental Analysis Updating
854	!!
855	!! ** Action :
856	!!----------------------------------------------------------------------
857	INTEGER, INTENT(IN) :: kt ! Current time step
858	!
859	INTEGER :: ji,jj,jk
860	INTEGER :: it
861	REAL(wp) :: zincwgt ! IAU weight for current time step
862	REAL (wp), DIMENSION(jpi,jpj,jpk) :: fzptnz ! 3d freezing point values
863	!!----------------------------------------------------------------------
864
865	! freezing point calculation taken from oc_fz_pt (but calculated for all depths)
866	! used to prevent the applied increments taking the temperature below the local freezing point
867
868	DO jk = 1, jpkm1
869	CALL eos_fzp( tsn(:,:,jk,jp_sal), fzptnz(:,:,jk), fsdept(:,:,jk) )
870	END DO
871
872	IF ( ln_asmiau ) THEN
873
874	!--------------------------------------------------------------------
875	! Incremental Analysis Updating
876	!--------------------------------------------------------------------
877
878	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
879
880	it = kt - nit000 + 1
881	zincwgt = wgtiau(it) / rdt ! IAU weight for the current time step
882
883	IF(lwp) THEN
884	WRITE(numout,*)
885	WRITE(numout,*) 'tra_asm_inc : Tracer IAU at time step = ', kt,' with IAU weight = ', wgtiau(it)
886	WRITE(numout,*) '~~~~~~~~~~~~'
887	ENDIF
888
889	! Update the tracer tendencies
890	DO jk = 1, jpkm1
891	IF (ln_temnofreeze) THEN
892	! Do not apply negative increments if the temperature will fall below freezing
893	WHERE(t_bkginc(:,:,jk) > 0.0_wp .OR. &
894	& tsn(:,:,jk,jp_tem) + tsa(:,:,jk,jp_tem) + t_bkginc(:,:,jk) * wgtiau(it) > fzptnz(:,:,jk) )
895	tsa(:,:,jk,jp_tem) = tsa(:,:,jk,jp_tem) + t_bkginc(:,:,jk) * zincwgt
896	END WHERE
897	ELSE
898	tsa(:,:,jk,jp_tem) = tsa(:,:,jk,jp_tem) + t_bkginc(:,:,jk) * zincwgt
899	ENDIF
900	IF (ln_salfix) THEN
901	! Do not apply negative increments if the salinity will fall below a specified
902	! minimum value salfixmin
903	WHERE(s_bkginc(:,:,jk) > 0.0_wp .OR. &
904	& tsn(:,:,jk,jp_sal) + tsa(:,:,jk,jp_sal) + s_bkginc(:,:,jk) * wgtiau(it) > salfixmin )
905	tsa(:,:,jk,jp_sal) = tsa(:,:,jk,jp_sal) + s_bkginc(:,:,jk) * zincwgt
906	END WHERE
907	ELSE
908	tsa(:,:,jk,jp_sal) = tsa(:,:,jk,jp_sal) + s_bkginc(:,:,jk) * zincwgt
909	ENDIF
910	END DO
911
912	ENDIF
913
914	IF ( kt == nitiaufin_r + 1 ) THEN ! For bias crcn to work
915	DEALLOCATE( t_bkginc )
916	DEALLOCATE( s_bkginc )
917	ENDIF
918
919
920	ELSEIF ( ln_asmdin ) THEN
921
922	!--------------------------------------------------------------------
923	! Direct Initialization
924	!--------------------------------------------------------------------
925
926	IF ( kt == nitdin_r ) THEN
927
928	neuler = 0 ! Force Euler forward step
929
930	! Initialize the now fields with the background + increment
931	IF (ln_temnofreeze) THEN
932	! Do not apply negative increments if the temperature will fall below freezing
933	WHERE( t_bkginc(:,:,:) > 0.0_wp .OR. tsn(:,:,:,jp_tem) + t_bkginc(:,:,:) > fzptnz(:,:,:) )
934	tsn(:,:,:,jp_tem) = t_bkg(:,:,:) + t_bkginc(:,:,:)
935	END WHERE
936	ELSE
937	tsn(:,:,:,jp_tem) = t_bkg(:,:,:) + t_bkginc(:,:,:)
938	ENDIF
939	IF (ln_salfix) THEN
940	! Do not apply negative increments if the salinity will fall below a specified
941	! minimum value salfixmin
942	WHERE( s_bkginc(:,:,:) > 0.0_wp .OR. tsn(:,:,:,jp_sal) + s_bkginc(:,:,:) > salfixmin )
943	tsn(:,:,:,jp_sal) = s_bkg(:,:,:) + s_bkginc(:,:,:)
944	END WHERE
945	ELSE
946	tsn(:,:,:,jp_sal) = s_bkg(:,:,:) + s_bkginc(:,:,:)
947	ENDIF
948
949	tsb(:,:,:,:) = tsn(:,:,:,:) ! Update before fields
950
951	CALL eos( tsb, rhd, rhop, gdept_0(:,:,:) ) ! Before potential and in situ densities
952	!!gm fabien
953	! CALL eos( tsb, rhd, rhop ) ! Before potential and in situ densities
954	!!gm
955
956
957	IF( ln_zps .AND. .NOT. lk_c1d .AND. .NOT. ln_isfcav) &
958	& CALL zps_hde ( kt, jpts, tsb, gtsu, gtsv, & ! Partial steps: before horizontal gradient
959	& rhd, gru , grv ) ! of t, s, rd at the last ocean level
960	IF( ln_zps .AND. .NOT. lk_c1d .AND. ln_isfcav) &
961	& CALL zps_hde_isf( nit000, jpts, tsb, gtsu, gtsv, & ! Partial steps for top cell (ISF)
962	& rhd, gru , grv , aru , arv , gzu , gzv , ge3ru , ge3rv , &
963	& gtui, gtvi, grui, grvi, arui, arvi, gzui, gzvi, ge3rui, ge3rvi ) ! of t, s, rd at the last ocean level
964
965	#if defined key_zdfkpp
966	CALL eos( tsn, rhd, fsdept_n(:,:,:) ) ! Compute rhd
967	!!gm fabien CALL eos( tsn, rhd ) ! Compute rhd
968	#endif
969
970	DEALLOCATE( t_bkginc )
971	DEALLOCATE( s_bkginc )
972	DEALLOCATE( t_bkg )
973	DEALLOCATE( s_bkg )
974	ENDIF
975	!
976	ENDIF
977	! Perhaps the following call should be in step
978	IF ( ln_seaiceinc ) CALL seaice_asm_inc ( kt ) ! apply sea ice concentration increment
979	IF ( ln_sitinc ) CALL sit_asm_inc ( kt ) ! apply sea ice thickness increment
980	!
981	END SUBROUTINE tra_asm_inc
982
983
984	SUBROUTINE dyn_asm_inc( kt )
985	!!----------------------------------------------------------------------
986	!! * ROUTINE dyn_asm_inc *
987	!!
988	!! ** Purpose : Apply the dynamics (u and v) assimilation increments.
989	!!
990	!! ** Method : Direct initialization or Incremental Analysis Updating.
991	!!
992	!! ** Action :
993	!!----------------------------------------------------------------------
994	INTEGER, INTENT(IN) :: kt ! Current time step
995	!
996	INTEGER :: jk
997	INTEGER :: it
998	REAL(wp) :: zincwgt ! IAU weight for current time step
999	!!----------------------------------------------------------------------
1000
1001	IF ( ln_asmiau ) THEN
1002
1003	!--------------------------------------------------------------------
1004	! Incremental Analysis Updating
1005	!--------------------------------------------------------------------
1006
1007	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1008
1009	it = kt - nit000 + 1
1010	zincwgt = wgtiau(it) / rdt ! IAU weight for the current time step
1011
1012	IF(lwp) THEN
1013	WRITE(numout,*)
1014	WRITE(numout,*) 'dyn_asm_inc : Dynamics IAU at time step = ', &
1015	& kt,' with IAU weight = ', wgtiau(it)
1016	WRITE(numout,*) '~~~~~~~~~~~~'
1017	ENDIF
1018
1019	! Update the dynamic tendencies
1020	DO jk = 1, jpkm1
1021	ua(:,:,jk) = ua(:,:,jk) + u_bkginc(:,:,jk) * zincwgt
1022	va(:,:,jk) = va(:,:,jk) + v_bkginc(:,:,jk) * zincwgt
1023	END DO
1024
1025	IF ( kt == nitiaufin_r ) THEN
1026	DEALLOCATE( u_bkginc )
1027	DEALLOCATE( v_bkginc )
1028	ENDIF
1029
1030	ENDIF
1031
1032	ELSEIF ( ln_asmdin ) THEN
1033
1034	!--------------------------------------------------------------------
1035	! Direct Initialization
1036	!--------------------------------------------------------------------
1037
1038	IF ( kt == nitdin_r ) THEN
1039
1040	neuler = 0 ! Force Euler forward step
1041
1042	! Initialize the now fields with the background + increment
1043	un(:,:,:) = u_bkg(:,:,:) + u_bkginc(:,:,:)
1044	vn(:,:,:) = v_bkg(:,:,:) + v_bkginc(:,:,:)
1045
1046	ub(:,:,:) = un(:,:,:) ! Update before fields
1047	vb(:,:,:) = vn(:,:,:)
1048
1049	DEALLOCATE( u_bkg )
1050	DEALLOCATE( v_bkg )
1051	DEALLOCATE( u_bkginc )
1052	DEALLOCATE( v_bkginc )
1053	ENDIF
1054	!
1055	ENDIF
1056	!
1057	END SUBROUTINE dyn_asm_inc
1058
1059
1060	SUBROUTINE ssh_asm_inc( kt )
1061	!!----------------------------------------------------------------------
1062	!! * ROUTINE ssh_asm_inc *
1063	!!
1064	!! ** Purpose : Apply the sea surface height assimilation increment.
1065	!!
1066	!! ** Method : Direct initialization or Incremental Analysis Updating.
1067	!!
1068	!! ** Action :
1069	!!----------------------------------------------------------------------
1070	INTEGER, INTENT(IN) :: kt ! Current time step
1071	!
1072	INTEGER :: it
1073	INTEGER :: jk
1074	REAL(wp) :: zincwgt ! IAU weight for current time step
1075	!!----------------------------------------------------------------------
1076
1077	IF ( ln_asmiau ) THEN
1078
1079	!--------------------------------------------------------------------
1080	! Incremental Analysis Updating
1081	!--------------------------------------------------------------------
1082
1083	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1084
1085	it = kt - nit000 + 1
1086	zincwgt = wgtiau(it) / rdt ! IAU weight for the current time step
1087
1088	IF(lwp) THEN
1089	WRITE(numout,*)
1090	WRITE(numout,*) 'ssh_asm_inc : SSH IAU at time step = ', &
1091	& kt,' with IAU weight = ', wgtiau(it)
1092	WRITE(numout,*) '~~~~~~~~~~~~'
1093	ENDIF
1094
1095	! Save the tendency associated with the IAU weighted SSH increment
1096	! (applied in dynspg.*)
1097	#if defined key_asminc
1098	ssh_iau(:,:) = ssh_bkginc(:,:) * zincwgt
1099	#endif
1100	IF ( kt == nitiaufin_r ) THEN
1101	DEALLOCATE( ssh_bkginc )
1102	ENDIF
1103
1104	#if defined key_asminc
1105	ELSE
1106	ssh_iau(:,:) = 0._wp
1107	#endif
1108	ENDIF
1109
1110	ELSEIF ( ln_asmdin ) THEN
1111
1112	!--------------------------------------------------------------------
1113	! Direct Initialization
1114	!--------------------------------------------------------------------
1115
1116	IF ( kt == nitdin_r ) THEN
1117
1118	neuler = 0 ! Force Euler forward step
1119
1120	! Initialize the now fields the background + increment
1121	sshn(:,:) = ssh_bkg(:,:) + ssh_bkginc(:,:)
1122
1123	! Update before fields
1124	sshb(:,:) = sshn(:,:)
1125
1126	IF( lk_vvl ) THEN
1127	DO jk = 1, jpk
1128	fse3t_b(:,:,jk) = fse3t_n(:,:,jk)
1129	END DO
1130	ENDIF
1131
1132	DEALLOCATE( ssh_bkg )
1133	DEALLOCATE( ssh_bkginc )
1134
1135	ENDIF
1136	!
1137	ENDIF
1138	!
1139	END SUBROUTINE ssh_asm_inc
1140
1141	SUBROUTINE sit_asm_inc( kt, kindic )
1142	!!----------------------------------------------------------------------
1143	!! * ROUTINE sit_asm_inc *
1144	!!
1145	!! ** Purpose : Apply the sea ice thickness assimilation increment.
1146	!!
1147	!! ** Method : Direct initialization or Incremental Analysis Updating.
1148	!!
1149	!! ** Action :
1150	!!
1151	!!----------------------------------------------------------------------
1152	IMPLICIT NONE
1153	!
1154	INTEGER, INTENT(in) :: kt ! Current time step
1155	INTEGER, INTENT(in), OPTIONAL :: kindic ! flag for disabling the deallocation
1156	!
1157	INTEGER :: it
1158	REAL(wp) :: zincwgt ! IAU weight for current time step
1159	!!----------------------------------------------------------------------
1160
1161	IF ( ln_asmiau ) THEN
1162
1163	!--------------------------------------------------------------------
1164	! Incremental Analysis Updating
1165	!--------------------------------------------------------------------
1166
1167	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1168
1169	it = kt - nit000 + 1
1170	zincwgt = wgtiau(it) ! IAU weight for the current time step
1171	! note this is not a tendency so should not be divided by rdt (as with the tracer and other increments)
1172	! EF: Actually CICE is expecting a tendency so is divided by rdt below
1173
1174	IF(lwp) THEN
1175	WRITE(numout,*)
1176	WRITE(numout,*) 'sit_asm_inc : sea ice thick IAU at time step = ', &
1177	& kt,' with IAU weight = ', wgtiau(it)
1178	WRITE(numout,*) '~~~~~~~~~~~~'
1179	ENDIF
1180
1181	#if defined key_cice && defined key_asminc
1182	! Sea-ice thickness : CICE case. Pass ice thickness increment tendency into CICE
1183	ndsit_da(:,:) = sit_bkginc(:,:) * zincwgt / rdt
1184	#endif
1185
1186	IF ( kt == nitiaufin_r ) THEN
1187	DEALLOCATE( sit_bkginc )
1188	ENDIF
1189
1190	ELSE
1191
1192	#if defined key_cice && defined key_asminc
1193	! Sea-ice thickness : CICE case. Zero ice increment tendency into CICE
1194	ndsit_da(:,:) = 0.0_wp
1195	#endif
1196
1197	ENDIF
1198
1199	ELSEIF ( ln_asmdin ) THEN
1200
1201	!--------------------------------------------------------------------
1202	! Direct Initialization
1203	!--------------------------------------------------------------------
1204
1205	IF ( kt == nitdin_r ) THEN
1206
1207	neuler = 0 ! Force Euler forward step
1208
1209	#if defined key_cice && defined key_asminc
1210	! Sea-ice thickness : CICE case. Pass ice thickness increment tendency into CICE
1211	ndsit_da(:,:) = sit_bkginc(:,:) / rdt
1212	#endif
1213	IF ( .NOT. PRESENT(kindic) ) THEN
1214	DEALLOCATE( sit_bkginc )
1215	END IF
1216
1217	ELSE
1218
1219	#if defined key_cice && defined key_asminc
1220	! Sea-ice thicnkness : CICE case. Zero ice thickness increment tendency into CICE
1221	ndsit_da(:,:) = 0.0_wp
1222	#endif
1223
1224	ENDIF
1225
1226	ENDIF
1227
1228	END SUBROUTINE sit_asm_inc
1229
1230	SUBROUTINE seaice_asm_inc( kt, kindic )
1231	!!----------------------------------------------------------------------
1232	!! * ROUTINE seaice_asm_inc *
1233	!!
1234	!! ** Purpose : Apply the sea ice assimilation increment.
1235	!!
1236	!! ** Method : Direct initialization or Incremental Analysis Updating.
1237	!!
1238	!! ** Action :
1239	!!
1240	!!----------------------------------------------------------------------
1241	IMPLICIT NONE
1242	!
1243	INTEGER, INTENT(in) :: kt ! Current time step
1244	INTEGER, INTENT(in), OPTIONAL :: kindic ! flag for disabling the deallocation
1245	!
1246	INTEGER :: it
1247	REAL(wp) :: zincwgt ! IAU weight for current time step
1248	#if defined key_lim2
1249	REAL(wp), DIMENSION(jpi,jpj) :: zofrld, zohicif, zseaicendg, zhicifinc ! LIM
1250	REAL(wp) :: zhicifmin = 0.5_wp ! ice minimum depth in metres
1251	#endif
1252	!!----------------------------------------------------------------------
1253
1254	IF ( ln_asmiau ) THEN
1255
1256	!--------------------------------------------------------------------
1257	! Incremental Analysis Updating
1258	!--------------------------------------------------------------------
1259
1260	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1261
1262	it = kt - nit000 + 1
1263	zincwgt = wgtiau(it) ! IAU weight for the current time step
1264	! note this is not a tendency so should not be divided by rdt (as with the tracer and other increments)
1265
1266	IF(lwp) THEN
1267	WRITE(numout,*)
1268	WRITE(numout,*) 'seaice_asm_inc : sea ice conc IAU at time step = ', &
1269	& kt,' with IAU weight = ', wgtiau(it)
1270	WRITE(numout,*) '~~~~~~~~~~~~'
1271	ENDIF
1272
1273	! Sea-ice : LIM-3 case (to add)
1274
1275	#if defined key_lim2
1276	! Sea-ice : LIM-2 case
1277	zofrld (:,:) = frld(:,:)
1278	zohicif(:,:) = hicif(:,:)
1279	!
1280	frld = MIN( MAX( frld (:,:) - seaice_bkginc(:,:) * zincwgt, 0.0_wp), 1.0_wp)
1281	pfrld = MIN( MAX( pfrld(:,:) - seaice_bkginc(:,:) * zincwgt, 0.0_wp), 1.0_wp)
1282	fr_i(:,:) = 1.0_wp - frld(:,:) ! adjust ice fraction
1283	!
1284	zseaicendg(:,:) = zofrld(:,:) - frld(:,:) ! find out actual sea ice nudge applied
1285	!
1286	! Nudge sea ice depth to bring it up to a required minimum depth
1287	WHERE( zseaicendg(:,:) > 0.0_wp .AND. hicif(:,:) < zhicifmin )
1288	zhicifinc(:,:) = (zhicifmin - hicif(:,:)) * zincwgt
1289	ELSEWHERE
1290	zhicifinc(:,:) = 0.0_wp
1291	END WHERE
1292	!
1293	! nudge ice depth
1294	hicif (:,:) = hicif (:,:) + zhicifinc(:,:)
1295	phicif(:,:) = phicif(:,:) + zhicifinc(:,:)
1296	!
1297	! seaice salinity balancing (to add)
1298	#endif
1299
1300	#if defined key_cice && defined key_asminc
1301	! Sea-ice : CICE case. Pass ice increment tendency into CICE
1302	ndaice_da(:,:) = seaice_bkginc(:,:) * zincwgt / rdt
1303	#endif
1304
1305	IF ( kt == nitiaufin_r ) THEN
1306	DEALLOCATE( seaice_bkginc )
1307	ENDIF
1308
1309	ELSE
1310
1311	#if defined key_cice && defined key_asminc
1312	! Sea-ice : CICE case. Zero ice increment tendency into CICE
1313	ndaice_da(:,:) = 0.0_wp
1314	#endif
1315
1316	ENDIF
1317
1318	ELSEIF ( ln_asmdin ) THEN
1319
1320	!--------------------------------------------------------------------
1321	! Direct Initialization
1322	!--------------------------------------------------------------------
1323
1324	IF ( kt == nitdin_r ) THEN
1325
1326	neuler = 0 ! Force Euler forward step
1327
1328	! Sea-ice : LIM-3 case (to add)
1329
1330	#if defined key_lim2
1331	! Sea-ice : LIM-2 case.
1332	zofrld(:,:)=frld(:,:)
1333	zohicif(:,:)=hicif(:,:)
1334	!
1335	! Initialize the now fields the background + increment
1336	frld (:,:) = MIN( MAX( frld(:,:) - seaice_bkginc(:,:), 0.0_wp), 1.0_wp)
1337	pfrld(:,:) = frld(:,:)
1338	fr_i (:,:) = 1.0_wp - frld(:,:) ! adjust ice fraction
1339	zseaicendg(:,:) = zofrld(:,:) - frld(:,:) ! find out actual sea ice nudge applied
1340	!
1341	! Nudge sea ice depth to bring it up to a required minimum depth
1342	WHERE( zseaicendg(:,:) > 0.0_wp .AND. hicif(:,:) < zhicifmin )
1343	zhicifinc(:,:) = (zhicifmin - hicif(:,:)) * zincwgt
1344	ELSEWHERE
1345	zhicifinc(:,:) = 0.0_wp
1346	END WHERE
1347	!
1348	! nudge ice depth
1349	hicif (:,:) = hicif (:,:) + zhicifinc(:,:)
1350	phicif(:,:) = phicif(:,:)
1351	!
1352	! seaice salinity balancing (to add)
1353	#endif
1354
1355	#if defined key_cice && defined key_asminc
1356	! Sea-ice : CICE case. Pass ice increment tendency into CICE
1357	ndaice_da(:,:) = seaice_bkginc(:,:) / rdt
1358	#endif
1359	IF ( .NOT. PRESENT(kindic) ) THEN
1360	DEALLOCATE( seaice_bkginc )
1361	END IF
1362
1363	ELSE
1364
1365	#if defined key_cice && defined key_asminc
1366	! Sea-ice : CICE case. Zero ice increment tendency into CICE
1367	ndaice_da(:,:) = 0.0_wp
1368	#endif
1369
1370	ENDIF
1371
1372	!#if defined defined key_lim2 \|\| defined key_cice
1373	!
1374	! IF (ln_seaicebal ) THEN
1375	! !! balancing salinity increments
1376	! !! simple case from limflx.F90 (doesn't include a mass flux)
1377	! !! assumption is that as ice concentration is reduced or increased
1378	! !! the snow and ice depths remain constant
1379	! !! note that snow is being created where ice concentration is being increased
1380	! !! - could be more sophisticated and
1381	! !! not do this (but would need to alter h_snow)
1382	!
1383	! usave(:,:,:)=sb(:,:,:) ! use array as a temporary store
1384	!
1385	! DO jj = 1, jpj
1386	! DO ji = 1, jpi
1387	! ! calculate change in ice and snow mass per unit area
1388	! ! positive values imply adding salt to the ocean (results from ice formation)
1389	! ! fwf : ice formation and melting
1390	!
1391	! zfons = ( -nfresh_da(ji,jj)soce + nfsalt_da(ji,jj) )rdt
1392	!
1393	! ! change salinity down to mixed layer depth
1394	! mld=hmld_kara(ji,jj)
1395	!
1396	! ! prevent small mld
1397	! ! less than 10m can cause salinity instability
1398	! IF (mld < 10) mld=10
1399	!
1400	! ! set to bottom of a level
1401	! DO jk = jpk-1, 2, -1
1402	! IF ((mld > gdepw(ji,jj,jk)) .and. (mld < gdepw(ji,jj,jk+1))) THEN
1403	! mld=gdepw(ji,jj,jk+1)
1404	! jkmax=jk
1405	! ENDIF
1406	! ENDDO
1407	!
1408	! ! avoid applying salinity balancing in shallow water or on land
1409	! !
1410	!
1411	! ! dsal_ocn (psu kg m^-2) / (kg m^-3 * m)
1412	!
1413	! dsal_ocn=0.0_wp
1414	! sal_thresh=5.0_wp ! minimum salinity threshold for salinity balancing
1415	!
1416	! if (tmask(ji,jj,1) > 0 .AND. tmask(ji,jj,jkmax) > 0 ) &
1417	! dsal_ocn = zfons / (rhop(ji,jj,1) * mld)
1418	!
1419	! ! put increments in for levels in the mixed layer
1420	! ! but prevent salinity below a threshold value
1421	!
1422	! DO jk = 1, jkmax
1423	!
1424	! IF (dsal_ocn > 0.0_wp .or. sb(ji,jj,jk)+dsal_ocn > sal_thresh) THEN
1425	! sb(ji,jj,jk) = sb(ji,jj,jk) + dsal_ocn
1426	! sn(ji,jj,jk) = sn(ji,jj,jk) + dsal_ocn
1427	! ENDIF
1428	!
1429	! ENDDO
1430	!
1431	! ! ! salt exchanges at the ice/ocean interface
1432	! ! zpmess = zfons / rdt_ice ! rdt_ice is ice timestep
1433	! !
1434	! !! Adjust fsalt. A +ve fsalt means adding salt to ocean
1435	! !! fsalt(ji,jj) = fsalt(ji,jj) + zpmess ! adjust fsalt
1436	! !!
1437	! !! emps(ji,jj) = emps(ji,jj) + zpmess ! or adjust emps (see icestp1d)
1438	! !! ! E-P (kg m-2 s-2)
1439	! ! emp(ji,jj) = emp(ji,jj) + zpmess ! E-P (kg m-2 s-2)
1440	! ENDDO !ji
1441	! ENDDO !jj!
1442	!
1443	! ENDIF !ln_seaicebal
1444	!
1445	!#endif
1446
1447	ENDIF
1448
1449	END SUBROUTINE seaice_asm_inc
1450
1451
1452	SUBROUTINE bgc_asm_inc( kt )
1453	!!----------------------------------------------------------------------
1454	!! * ROUTINE bgc_asm_inc *
1455	!!
1456	!! ** Purpose : Apply the biogeochemistry assimilation increments
1457	!!
1458	!! ** Method : Call relevant routines in asmbgc
1459	!!
1460	!! ** Action : Call relevant routines in asmbgc
1461	!!
1462	!!----------------------------------------------------------------------
1463	!!
1464	INTEGER, INTENT(in ) :: kt ! Current time step
1465	!
1466	INTEGER :: icycper ! Dimension of wgtiau
1467	!!
1468	!!----------------------------------------------------------------------
1469
1470	icycper = SIZE( wgtiau )
1471
1472	! Ocean colour variables first
1473	IF ( ln_slchltotinc .OR. ln_slchldiainc .OR. ln_slchlnoninc .OR. &
1474	& ln_slchlnaninc .OR. ln_slchlpicinc .OR. ln_slchldininc .OR. &
1475	& ln_schltotinc .OR. ln_slphytotinc .OR. ln_slphydiainc .OR. &
1476	& ln_slphynoninc ) THEN
1477	CALL phyto2d_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau )
1478	ENDIF
1479
1480	! Surface pCO2/fCO2 next
1481	IF ( ln_sfco2inc .OR. ln_spco2inc ) THEN
1482	CALL pco2_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau, &
1483	& ln_trainc, t_bkginc, s_bkginc )
1484	ENDIF
1485
1486	! Profile pH next
1487	IF ( ln_pphinc ) THEN
1488	CALL ph_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau, &
1489	& ln_trainc, t_bkginc, s_bkginc )
1490	ENDIF
1491
1492	! Then chlorophyll profiles
1493	IF ( ln_plchltotinc .OR. ln_pchltotinc .OR. ln_plchldiainc .OR. &
1494	& ln_plchlnaninc .OR. ln_plchlpicinc .OR. ln_plchldininc ) THEN
1495	CALL phyto3d_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau )
1496	ENDIF
1497
1498	! Remaining bgc profile variables
1499	IF ( ln_pno3inc .OR. ln_psi4inc .OR. ln_pdicinc .OR. &
1500	& ln_palkinc .OR. ln_po2inc .OR. ln_ppo4inc ) THEN
1501	CALL bgc3d_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau )
1502	ENDIF
1503
1504	END SUBROUTINE bgc_asm_inc
1505
1506	!!======================================================================
1507	END MODULE asminc

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