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asminc.F90 in branches/UKMO/AMM15_v3_6_STABLE_package_collate_phytobal3d/NEMOGCM/NEMO/OPA_SRC/ASM – NEMO

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source: branches/UKMO/AMM15_v3_6_STABLE_package_collate_phytobal3d/NEMOGCM/NEMO/OPA_SRC/ASM/asminc.F90 @ 13106

Last change on this file since 13106 was 13106, checked in by dford, 4 years ago
Allow 3D PFT chlorophyll increments to be applied.
File size: 65.5 KB

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

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