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asminc.F90 in branches/UKMO/AMM15_v3_6_STABLE_package_collate/NEMOGCM/NEMO/OPA_SRC/ASM – NEMO

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source: branches/UKMO/AMM15_v3_6_STABLE_package_collate/NEMOGCM/NEMO/OPA_SRC/ASM/asminc.F90 @ 14190

Last change on this file since 14190 was 14190, checked in by kingr, 4 years ago
Allow heat/salt conservation when assimilating SSH to be namelist controlled.
File size: 65.7 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_ssh_hs_cons = .FALSE. !: Conserve heat and salt when adding SSH increment
81	LOGICAL, PUBLIC :: ln_sshinc = .FALSE. !: No sea surface height assimilation increment
82	LOGICAL, PUBLIC :: ln_seaiceinc = .FALSE. !: No sea ice concentration increment
83	LOGICAL, PUBLIC :: ln_sitinc = .FALSE. !: No sea ice thickness increment
84	LOGICAL, PUBLIC :: lk_bgcinc = .FALSE. !: No biogeochemistry increments
85	LOGICAL, PUBLIC :: ln_salfix = .FALSE. !: Apply minimum salinity check
86	LOGICAL, PUBLIC :: ln_temnofreeze = .FALSE. !: Don't allow the temperature to drop below freezing
87	INTEGER, PUBLIC :: nn_divdmp !: Apply divergence damping filter nn_divdmp times
88
89	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: t_bkg , s_bkg !: Background temperature and salinity
90	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: u_bkg , v_bkg !: Background u- & v- velocity components
91	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: t_bkginc, s_bkginc !: Increment to the background T & S
92	REAL(wp), PUBLIC, DIMENSION(:,:,:), ALLOCATABLE :: u_bkginc, v_bkginc !: Increment to the u- & v-components
93	REAL(wp), PUBLIC, DIMENSION(:) , ALLOCATABLE :: wgtiau !: IAU weights for each time step
94	#if defined key_asminc
95	REAL(wp), PUBLIC, DIMENSION(:,:), ALLOCATABLE :: ssh_iau !: IAU-weighted sea surface height increment
96	#endif
97	! !!! time steps relative to the cycle interval [0,nitend-nit000-1]
98	INTEGER , PUBLIC :: nitbkg !: Time step of the background state used in the Jb term
99	INTEGER , PUBLIC :: nitdin !: Time step of the background state for direct initialization
100	INTEGER , PUBLIC :: nitiaustr !: Time step of the start of the IAU interval
101	INTEGER , PUBLIC :: nitiaufin !: Time step of the end of the IAU interval
102	INTEGER , PUBLIC :: nitavgbkg !: Number of timesteps to average assim bkg [0,nitavgbkg]
103	!
104	INTEGER , PUBLIC :: niaufn !: Type of IAU weighing function: = 0 Constant weighting
105	! !: = 1 Linear hat-like, centred in middle of IAU interval
106	REAL(wp), PUBLIC :: salfixmin !: Ensure that the salinity is larger than this value if (ln_salfix)
107
108	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: ssh_bkg, ssh_bkginc ! Background sea surface height and its increment
109	REAL(wp), DIMENSION(:,:), ALLOCATABLE :: seaice_bkginc ! Increment to the background sea ice conc
110
111	INTEGER :: mld_choice = 4 !: choice of mld criteria to use for physics assimilation
112	!: 1) hmld - Turbocline/mixing depth [W points]
113	!: 2) hmlp - Density criterion (0.01 kg/m^3 change from 10m) [W points]
114	!: 3) hmld_kara - Kara MLD [Interpolated]
115	!: 4) hmld_tref - Temperature criterion (0.2 K change from surface) [T points]
116
117
118	!! * Substitutions
119	# include "domzgr_substitute.h90"
120	# include "ldfdyn_substitute.h90"
121	# include "vectopt_loop_substitute.h90"
122	!!----------------------------------------------------------------------
123	!! NEMO/OPA 3.3 , NEMO Consortium (2010)
124	!! $Id$
125	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
126	!!----------------------------------------------------------------------
127	CONTAINS
128
129	SUBROUTINE asm_inc_init
130	!!----------------------------------------------------------------------
131	!! * ROUTINE asm_inc_init *
132	!!
133	!! ** Purpose : Initialize the assimilation increment and IAU weights.
134	!!
135	!! ** Method : Initialize the assimilation increment and IAU weights.
136	!!
137	!! ** Action :
138	!!----------------------------------------------------------------------
139	INTEGER :: ji, jj, jk, jt ! dummy loop indices
140	INTEGER :: imid, inum ! local integers
141	INTEGER :: ios ! Local integer output status for namelist read
142	INTEGER :: iiauper ! Number of time steps in the IAU period
143	INTEGER :: icycper ! Number of time steps in the cycle
144	INTEGER :: iitend_date ! Date YYYYMMDD of final time step
145	INTEGER :: iitbkg_date ! Date YYYYMMDD of background time step for Jb term
146	INTEGER :: iitdin_date ! Date YYYYMMDD of background time step for DI
147	INTEGER :: iitiaustr_date ! Date YYYYMMDD of IAU interval start time step
148	INTEGER :: iitiaufin_date ! Date YYYYMMDD of IAU interval final time step
149	INTEGER :: isurfstat ! Local integer for status of reading surft variable
150	INTEGER :: iitavgbkg_date ! Date YYYYMMDD of end of assim bkg averaging period
151	!
152	REAL(wp) :: znorm ! Normalization factor for IAU weights
153	REAL(wp) :: ztotwgt ! Value of time-integrated IAU weights (should be equal to one)
154	REAL(wp) :: z_inc_dateb ! Start date of interval on which increment is valid
155	REAL(wp) :: z_inc_datef ! End date of interval on which increment is valid
156	REAL(wp) :: zdate_bkg ! Date in background state file for DI
157	REAL(wp) :: zdate_inc ! Time axis in increments file
158	!
159	REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: &
160	& t_bkginc_2d ! file for reading in 2D
161	! ! temperature increments
162	REAL(wp), ALLOCATABLE, DIMENSION(:,:) :: &
163	& z_mld ! Mixed layer depth
164
165	REAL(wp), POINTER, DIMENSION(:,:) :: hdiv ! 2D workspace
166	!
167	LOGICAL :: lk_surft ! Logical: T => Increments file contains surft variable
168	! so only apply surft increments.
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, ln_ssh_hs_cons, &
182	& nitbkg, nitdin, nitiaustr, nitiaufin, niaufn, &
183	& ln_salfix, salfixmin, nn_divdmp, nitavgbkg, &
184	& mld_choice, mld_choice_bgc, rn_maxchlinc
185	!!----------------------------------------------------------------------
186
187	!-----------------------------------------------------------------------
188	! Read Namelist nam_asminc : assimilation increment interface
189	!-----------------------------------------------------------------------
190
191	! Set default values
192	ln_bkgwri = .FALSE.
193	ln_avgbkg = .FALSE.
194	ln_trainc = .FALSE.
195	ln_dyninc = .FALSE.
196	ln_sshinc = .FALSE.
197	ln_asmdin = .FALSE.
198	ln_asmiau = .TRUE.
199	ln_salfix = .FALSE.
200
201	ln_ssh_hs_cons = .FALSE.
202	ln_seaiceinc = .FALSE.
203	ln_sitinc = .FALSE.
204	ln_temnofreeze = .FALSE.
205
206	salfixmin = -9999
207	nitbkg = 0
208	nitdin = 0
209	nitiaustr = 1
210	nitiaufin = 150
211	niaufn = 0
212	nitavgbkg = 1
213
214	REWIND( numnam_ref ) ! Namelist nam_asminc in reference namelist : Assimilation increment
215	READ ( numnam_ref, nam_asminc, IOSTAT = ios, ERR = 901)
216	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nam_asminc in reference namelist', lwp )
217
218	REWIND( numnam_cfg ) ! Namelist nam_asminc in configuration namelist : Assimilation increment
219	READ ( numnam_cfg, nam_asminc, IOSTAT = ios, ERR = 902 )
220	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nam_asminc in configuration namelist', lwp )
221	IF(lwm) WRITE ( numond, nam_asminc )
222
223	! Control print
224	IF(lwp) THEN
225	WRITE(numout,*)
226	WRITE(numout,*) 'asm_inc_init : Assimilation increment initialization :'
227	WRITE(numout,*) '~~~~~~~~~~~~'
228	WRITE(numout,*) ' Namelist nam_asminc : set assimilation increment parameters'
229	WRITE(numout,*) ' Logical switch for writing out background state ln_bkgwri = ', ln_bkgwri
230	WRITE(numout,*) ' Logical switch for writing mean background state ln_avgbkg = ', ln_avgbkg
231	WRITE(numout,*) ' Logical switch for writing out balancing increments ln_balwri = ', ln_balwri
232	WRITE(numout,*) ' Logical switch for applying tracer increments ln_trainc = ', ln_trainc
233	WRITE(numout,*) ' Logical switch for applying velocity increments ln_dyninc = ', ln_dyninc
234	WRITE(numout,*) ' Logical switch for conserving heat/salt when applying SSH increments ln_ssh_hs_cons = ', ln_ssh_hs_cons
235	WRITE(numout,*) ' Logical switch for applying SSH increments ln_sshinc = ', ln_sshinc
236	WRITE(numout,*) ' Logical switch for applying SIC increments ln_seaiceinc = ', ln_seaiceinc
237	WRITE(numout,*) ' Logical switch for applying SIT increments ln_sitinc = ', ln_sitinc
238	WRITE(numout,*) ' Logical switch for Direct Initialization (DI) ln_asmdin = ', ln_asmdin
239	WRITE(numout,*) ' Logical switch for Incremental Analysis Updating (IAU) ln_asmiau = ', ln_asmiau
240	WRITE(numout,*) ' Timestep of background in [0,nitend-nit000-1] nitbkg = ', nitbkg
241	WRITE(numout,*) ' Timestep of background for DI in [0,nitend-nit000-1] nitdin = ', nitdin
242	WRITE(numout,*) ' Timestep of start of IAU interval in [0,nitend-nit000-1] nitiaustr = ', nitiaustr
243	WRITE(numout,*) ' Timestep of end of IAU interval in [0,nitend-nit000-1] nitiaufin = ', nitiaufin
244	WRITE(numout,*) ' Number of timesteps to average assim bkg [0,nitavgbkg] nitavgbkg = ', nitavgbkg
245	WRITE(numout,*) ' Type of IAU weighting function niaufn = ', niaufn
246	WRITE(numout,*) ' Logical switch for ensuring that the sa > salfixmin ln_salfix = ', ln_salfix
247	WRITE(numout,*) ' Minimum salinity after applying the increments salfixmin = ', salfixmin
248	WRITE(numout,*) ' Choice of MLD for physics assimilation mld_choice = ', mld_choice
249	WRITE(numout,*) ' Choice of MLD for BGC assimilation mld_choice_bgc = ', mld_choice_bgc
250	WRITE(numout,*) ' Maximum absolute chlorophyll increment (<=0 = off) rn_maxchlinc = ', rn_maxchlinc
251	WRITE(numout,*) ' Logical switch for phytoplankton balancing ln_phytobal = ', ln_phytobal
252	WRITE(numout,*) ' Logical switch for applying slchltot increments ln_slchltotinc = ', ln_slchltotinc
253	WRITE(numout,*) ' Logical switch for applying slchldia increments ln_slchldiainc = ', ln_slchldiainc
254	WRITE(numout,*) ' Logical switch for applying slchlnon increments ln_slchlnoninc = ', ln_slchlnoninc
255	WRITE(numout,*) ' Logical switch for applying slchlnan increments ln_slchlnaninc = ', ln_slchlnaninc
256	WRITE(numout,*) ' Logical switch for applying slchlpic increments ln_slchlpicinc = ', ln_slchlpicinc
257	WRITE(numout,*) ' Logical switch for applying slchldin increments ln_slchldininc = ', ln_slchldininc
258	WRITE(numout,*) ' Logical switch for applying schltot increments ln_schltotinc = ', ln_schltotinc
259	WRITE(numout,*) ' Logical switch for applying slphytot increments ln_slphytotinc = ', ln_slphytotinc
260	WRITE(numout,*) ' Logical switch for applying slphydia increments ln_slphydiainc = ', ln_slphydiainc
261	WRITE(numout,*) ' Logical switch for applying slphynon increments ln_slphynoninc = ', ln_slphynoninc
262	WRITE(numout,*) ' Logical switch for applying spco2 increments ln_spco2inc = ', ln_spco2inc
263	WRITE(numout,*) ' Logical switch for applying sfco2 increments ln_sfco2inc = ', ln_sfco2inc
264	WRITE(numout,*) ' Logical switch for applying plchltot increments ln_plchltotinc = ', ln_plchltotinc
265	WRITE(numout,*) ' Logical switch for applying pchltot increments ln_pchltotinc = ', ln_pchltotinc
266	WRITE(numout,*) ' Logical switch for applying plchldia increments ln_plchldiainc = ', ln_plchldiainc
267	WRITE(numout,*) ' Logical switch for applying plchlnan increments ln_plchlnaninc = ', ln_plchlnaninc
268	WRITE(numout,*) ' Logical switch for applying plchlpic increments ln_plchlpicinc = ', ln_plchlpicinc
269	WRITE(numout,*) ' Logical switch for applying plchldin increments ln_plchldininc = ', ln_plchldininc
270	WRITE(numout,*) ' Logical switch for applying pno3 increments ln_pno3inc = ', ln_pno3inc
271	WRITE(numout,*) ' Logical switch for applying psi4 increments ln_psi4inc = ', ln_psi4inc
272	WRITE(numout,*) ' Logical switch for applying ppo4 increments ln_ppo4inc = ', ln_ppo4inc
273	WRITE(numout,*) ' Logical switch for applying pdic increments ln_pdicinc = ', ln_pdicinc
274	WRITE(numout,*) ' Logical switch for applying palk increments ln_palkinc = ', ln_palkinc
275	WRITE(numout,*) ' Logical switch for applying pph increments ln_pphinc = ', ln_pphinc
276	WRITE(numout,*) ' Logical switch for applying po2 increments ln_po2inc = ', ln_po2inc
277	ENDIF
278
279	nitbkg_r = nitbkg + nit000 - 1 ! Background time referenced to nit000
280	nitdin_r = nitdin + nit000 - 1 ! Background time for DI referenced to nit000
281	nitiaustr_r = nitiaustr + nit000 - 1 ! Start of IAU interval referenced to nit000
282	nitiaufin_r = nitiaufin + nit000 - 1 ! End of IAU interval referenced to nit000
283	nitavgbkg_r = nitavgbkg + nit000 - 1 ! Averaging period referenced to nit000
284
285	iiauper = nitiaufin_r - nitiaustr_r + 1 ! IAU interval length
286	icycper = nitend - nit000 + 1 ! Cycle interval length
287
288	CALL calc_date( nit000, nitend , ndate0, iitend_date ) ! Date of final time step
289	CALL calc_date( nit000, nitbkg_r , ndate0, iitbkg_date ) ! Background time for Jb referenced to ndate0
290	CALL calc_date( nit000, nitdin_r , ndate0, iitdin_date ) ! Background time for DI referenced to ndate0
291	CALL calc_date( nit000, nitiaustr_r, ndate0, iitiaustr_date ) ! IAU start time referenced to ndate0
292	CALL calc_date( nit000, nitiaufin_r, ndate0, iitiaufin_date ) ! IAU end time referenced to ndate0
293	CALL calc_date( nit000, nitavgbkg_r, ndate0, iitavgbkg_date ) ! End of assim bkg averaging period referenced to ndate0
294	!
295	IF(lwp) THEN
296	WRITE(numout,*)
297	WRITE(numout,*) ' Time steps referenced to current cycle:'
298	WRITE(numout,*) ' iitrst = ', nit000 - 1
299	WRITE(numout,*) ' nit000 = ', nit000
300	WRITE(numout,*) ' nitend = ', nitend
301	WRITE(numout,*) ' nitbkg_r = ', nitbkg_r
302	WRITE(numout,*) ' nitdin_r = ', nitdin_r
303	WRITE(numout,*) ' nitiaustr_r = ', nitiaustr_r
304	WRITE(numout,*) ' nitiaufin_r = ', nitiaufin_r
305	WRITE(numout,*) ' nitavgbkg_r = ', nitavgbkg_r
306	WRITE(numout,*)
307	WRITE(numout,*) ' Dates referenced to current cycle:'
308	WRITE(numout,*) ' ndastp = ', ndastp
309	WRITE(numout,*) ' ndate0 = ', ndate0
310	WRITE(numout,*) ' iitend_date = ', iitend_date
311	WRITE(numout,*) ' iitbkg_date = ', iitbkg_date
312	WRITE(numout,*) ' iitdin_date = ', iitdin_date
313	WRITE(numout,*) ' iitiaustr_date = ', iitiaustr_date
314	WRITE(numout,*) ' iitiaufin_date = ', iitiaufin_date
315	WRITE(numout,*) ' iitavgbkg_date = ', iitavgbkg_date
316	ENDIF
317	IF ( ln_slchltotinc .OR. ln_slchldiainc .OR. ln_slchlnoninc .OR. &
318	& ln_slchlnaninc .OR. ln_slchlpicinc .OR. ln_slchldininc .OR. &
319	& ln_schltotinc .OR. ln_slphytotinc .OR. ln_slphydiainc .OR. &
320	& ln_slphynoninc .OR. ln_spco2inc .OR. ln_sfco2inc .OR. &
321	& ln_plchltotinc .OR. ln_pchltotinc .OR. ln_plchldiainc .OR. &
322	& ln_plchlnaninc .OR. ln_plchlpicinc .OR. ln_plchldininc .OR. &
323	& ln_pno3inc .OR. &
324	& ln_psi4inc .OR. ln_pdicinc .OR. ln_palkinc .OR. &
325	& ln_pphinc .OR. ln_po2inc .OR. ln_ppo4inc ) THEN
326	lk_bgcinc = .TRUE.
327	ENDIF
328
329	IF ( nacc /= 0 ) &
330	& CALL ctl_stop( ' nacc /= 0 and key_asminc :', &
331	& ' Assimilation increments have only been implemented', &
332	& ' for synchronous time stepping' )
333
334	IF ( ( ln_asmdin ).AND.( ln_asmiau ) ) &
335	& CALL ctl_stop( ' ln_asmdin and ln_asmiau :', &
336	& ' Choose Direct Initialization OR Incremental Analysis Updating')
337
338	IF ( ( ( .NOT. ln_asmdin ).AND.( .NOT. ln_asmiau ) ) &
339	& .AND.( ( ln_trainc ).OR.( ln_dyninc ).OR.( ln_sshinc ).OR.( ln_seaiceinc ).OR. &
340	& ( ln_sitinc ).OR.( lk_bgcinc ) )) &
341	& CALL ctl_stop( ' One or more of ln_trainc, ln_dyninc, ln_sshinc, ln_seaiceinc,', &
342	& ' ln_sitinc and ln_(bgc-variable)inc is set to .true.', &
343	& ' but ln_asmdin and ln_asmiau are both set to .false. :', &
344	& ' Inconsistent options')
345
346	IF ( ( niaufn /= 0 ).AND.( niaufn /= 1 ) ) &
347	& CALL ctl_stop( ' niaufn /= 0 or niaufn /=1 :', &
348	& ' Type IAU weighting function is invalid')
349
350	IF ( ( .NOT. ln_trainc ).AND.( .NOT. ln_dyninc ).AND.( .NOT. ln_sshinc ).AND.( .NOT. ln_seaiceinc ) &
351	& .AND.( .NOT. ln_sitinc ).AND.( .NOT. lk_bgcinc ) ) &
352	& CALL ctl_warn( ' ln_trainc, ln_dyninc, ln_sshinc, ln_seaiceinc,', &
353	& ' ln_sitinc and ln_(bgc-variable)inc are set to .false. :', &
354	& ' The assimilation increments are not applied')
355
356	IF ( ( ln_asmiau ).AND.( nitiaustr == nitiaufin ) ) &
357	& CALL ctl_stop( ' nitiaustr = nitiaufin :', &
358	& ' IAU interval is of zero length')
359
360	IF ( ( ln_asmiau ).AND.( ( nitiaustr_r < nit000 ).OR.( nitiaufin_r > nitend ) ) ) &
361	& CALL ctl_stop( ' nitiaustr or nitiaufin :', &
362	& ' IAU starting or final time step is outside the cycle interval', &
363	& ' Valid range nit000 to nitend')
364
365	IF ( ( nitbkg_r < nit000 - 1 ).OR.( nitbkg_r > nitend ) ) &
366	& CALL ctl_stop( ' nitbkg :', &
367	& ' Background time step is outside the cycle interval')
368
369	IF ( ( nitdin_r < nit000 - 1 ).OR.( nitdin_r > nitend ) ) &
370	& CALL ctl_stop( ' nitdin :', &
371	& ' Background time step for Direct Initialization is outside', &
372	& ' the cycle interval')
373
374	IF ( nitavgbkg_r > nitend ) &
375	& CALL ctl_stop( ' nitavgbkg_r :', &
376	& ' Assim bkg averaging period is outside', &
377	& ' the cycle interval')
378
379	IF ( lk_bgcinc ) CALL asm_bgc_check_options
380
381	IF ( nstop > 0 ) RETURN ! if there are any errors then go no further
382
383	!--------------------------------------------------------------------
384	! Initialize the Incremental Analysis Updating weighting function
385	!--------------------------------------------------------------------
386
387	IF ( ln_asmiau ) THEN
388
389	ALLOCATE( wgtiau( icycper ) )
390
391	wgtiau(:) = 0.0
392
393	IF ( niaufn == 0 ) THEN
394
395	!---------------------------------------------------------
396	! Constant IAU forcing
397	!---------------------------------------------------------
398
399	DO jt = 1, iiauper
400	wgtiau(jt+nitiaustr-1) = 1.0 / REAL( iiauper )
401	END DO
402
403	ELSEIF ( niaufn == 1 ) THEN
404
405	!---------------------------------------------------------
406	! Linear hat-like, centred in middle of IAU interval
407	!---------------------------------------------------------
408
409	! Compute the normalization factor
410	znorm = 0.0
411	IF ( MOD( iiauper, 2 ) == 0 ) THEN ! Even number of time steps in IAU interval
412	imid = iiauper / 2
413	DO jt = 1, imid
414	znorm = znorm + REAL( jt )
415	END DO
416	znorm = 2.0 * znorm
417	ELSE ! Odd number of time steps in IAU interval
418	imid = ( iiauper + 1 ) / 2
419	DO jt = 1, imid - 1
420	znorm = znorm + REAL( jt )
421	END DO
422	znorm = 2.0 * znorm + REAL( imid )
423	ENDIF
424	znorm = 1.0 / znorm
425
426	DO jt = 1, imid - 1
427	wgtiau(jt+nitiaustr-1) = REAL( jt ) * znorm
428	END DO
429	DO jt = imid, iiauper
430	wgtiau(jt+nitiaustr-1) = REAL( iiauper - jt + 1 ) * znorm
431	END DO
432
433	ENDIF
434
435	! Test that the integral of the weights over the weighting interval equals 1
436	IF(lwp) THEN
437	WRITE(numout,*)
438	WRITE(numout,*) 'asm_inc_init : IAU weights'
439	WRITE(numout,*) '~~~~~~~~~~~~'
440	WRITE(numout,*) ' time step IAU weight'
441	WRITE(numout,*) ' ========= ====================='
442	ztotwgt = 0.0
443	DO jt = 1, icycper
444	ztotwgt = ztotwgt + wgtiau(jt)
445	WRITE(numout,*) ' ', jt, ' ', wgtiau(jt)
446	END DO
447	WRITE(numout,*) ' ==================================='
448	WRITE(numout,*) ' Time-integrated weight = ', ztotwgt
449	WRITE(numout,*) ' ==================================='
450	ENDIF
451
452	ENDIF
453
454	!--------------------------------------------------------------------
455	! Allocate and initialize the increment arrays
456	!--------------------------------------------------------------------
457
458	IF ( ln_trainc ) THEN
459	ALLOCATE( t_bkginc(jpi,jpj,jpk) )
460	ALLOCATE( s_bkginc(jpi,jpj,jpk) )
461	t_bkginc(:,:,:) = 0.0
462	s_bkginc(:,:,:) = 0.0
463	ENDIF
464	IF ( ln_dyninc ) THEN
465	ALLOCATE( u_bkginc(jpi,jpj,jpk) )
466	ALLOCATE( v_bkginc(jpi,jpj,jpk) )
467	u_bkginc(:,:,:) = 0.0
468	v_bkginc(:,:,:) = 0.0
469	ENDIF
470	IF ( ln_sshinc ) THEN
471	ALLOCATE( ssh_bkginc(jpi,jpj) )
472	ssh_bkginc(:,:) = 0.0
473	ENDIF
474	IF ( ln_seaiceinc ) THEN
475	ALLOCATE( seaice_bkginc(jpi,jpj))
476	seaice_bkginc(:,:) = 0.0
477	ENDIF
478	IF ( ln_sitinc ) THEN
479	ALLOCATE( sit_bkginc(jpi,jpj))
480	sit_bkginc(:,:) = 0.0
481	ENDIF
482	#if defined key_asminc
483	ALLOCATE( ssh_iau(jpi,jpj) )
484	ssh_iau(:,:) = 0.0
485	#endif
486	IF ( ( ln_trainc ).OR.( ln_dyninc ).OR.( ln_sshinc ).OR.( ln_seaiceinc ) &
487	& .OR.( ln_sitinc ).OR.( lk_bgcinc ) ) THEN
488
489	!--------------------------------------------------------------------
490	! Read the increments from file
491	!--------------------------------------------------------------------
492
493	CALL iom_open( c_asminc, inum )
494
495	CALL iom_get( inum, 'time', zdate_inc )
496
497	CALL iom_get( inum, 'z_inc_dateb', z_inc_dateb )
498	CALL iom_get( inum, 'z_inc_datef', z_inc_datef )
499	z_inc_dateb = zdate_inc
500	z_inc_datef = zdate_inc
501
502	IF(lwp) THEN
503	WRITE(numout,*)
504	WRITE(numout,*) 'asm_inc_init : Assimilation increments valid ', &
505	& ' between dates ', NINT( z_inc_dateb ),' and ', &
506	& NINT( z_inc_datef )
507	WRITE(numout,*) '~~~~~~~~~~~~'
508	ENDIF
509
510	IF ( ( NINT( z_inc_dateb ) < ndastp ) &
511	& .OR.( NINT( z_inc_datef ) > iitend_date ) ) &
512	& CALL ctl_warn( ' Validity time of assimilation increments is ', &
513	& ' outside the assimilation interval' )
514
515	IF ( ( ln_asmdin ).AND.( NINT( zdate_inc ) /= iitdin_date ) ) &
516	& CALL ctl_warn( ' Validity time of assimilation increments does ', &
517	& ' not agree with Direct Initialization time' )
518
519	IF ( ln_trainc ) THEN
520
521	!Test if the increments file contains the surft variable.
522	isurfstat = iom_varid( inum, 'bckinsurft', ldstop = .FALSE. )
523	IF ( isurfstat == -1 ) THEN
524	lk_surft = .FALSE.
525	ELSE
526	lk_surft = .TRUE.
527	CALL ctl_warn( ' Applying 2D temperature increment to bottom of ML: ', &
528	& ' bckinsurft found in increments file.' )
529	ENDIF
530
531	IF (lk_surft) THEN
532
533	ALLOCATE(z_mld(jpi,jpj))
534	SELECT CASE(mld_choice)
535	CASE(1)
536	z_mld = hmld
537	CASE(2)
538	z_mld = hmlp
539	CASE(3)
540	#if defined key_karaml
541	IF ( ln_kara ) THEN
542	z_mld = hmld_kara
543	ELSE
544	CALL ctl_stop("Kara mixed layer not calculated as ln_kara=.false.")
545	ENDIF
546	#else
547	CALL ctl_stop("Kara mixed layer not defined in current version of NEMO") ! JW: Safety feature, should be removed
548	! once the Kara mixed layer is available
549	#endif
550	CASE(4)
551	z_mld = hmld_tref
552	END SELECT
553
554	ALLOCATE( t_bkginc_2d(jpi,jpj) )
555	CALL iom_get( inum, jpdom_autoglo, 'bckinsurft', t_bkginc_2d, 1)
556	#if defined key_bdy
557	DO jk = 1,jpkm1
558	WHERE( z_mld(:,:) > fsdepw(:,:,jk) )
559	t_bkginc(:,:,jk) = t_bkginc_2d(:,:) * 0.5 * &
560	& ( 1 + cos( (fsdept(:,:,jk)/z_mld(:,:) ) * rpi ) )
561
562	t_bkginc(:,:,jk) = t_bkginc(:,:,jk) * bdytmask(:,:)
563	ELSEWHERE
564	t_bkginc(:,:,jk) = 0.
565	ENDWHERE
566	ENDDO
567	#else
568	t_bkginc(:,:,:) = 0.
569	#endif
570	s_bkginc(:,:,:) = 0.
571
572	DEALLOCATE(z_mld, t_bkginc_2d)
573
574	ELSE
575
576	CALL iom_get( inum, jpdom_autoglo, 'bckint', t_bkginc, 1 )
577	CALL iom_get( inum, jpdom_autoglo, 'bckins', s_bkginc, 1 )
578	! Apply the masks
579	t_bkginc(:,:,:) = t_bkginc(:,:,:) * tmask(:,:,:)
580	s_bkginc(:,:,:) = s_bkginc(:,:,:) * tmask(:,:,:)
581	! Set missing increments to 0.0 rather than 1e+20
582	! to allow for differences in masks
583	WHERE( ABS( t_bkginc(:,:,:) ) > 1.0e+10 ) t_bkginc(:,:,:) = 0.0
584	WHERE( ABS( s_bkginc(:,:,:) ) > 1.0e+10 ) s_bkginc(:,:,:) = 0.0
585
586	ENDIF
587
588	ENDIF
589
590	IF ( ln_dyninc ) THEN
591	CALL iom_get( inum, jpdom_autoglo, 'bckinu', u_bkginc, 1 )
592	CALL iom_get( inum, jpdom_autoglo, 'bckinv', v_bkginc, 1 )
593	! Apply the masks
594	u_bkginc(:,:,:) = u_bkginc(:,:,:) * umask(:,:,:)
595	v_bkginc(:,:,:) = v_bkginc(:,:,:) * vmask(:,:,:)
596	! Set missing increments to 0.0 rather than 1e+20
597	! to allow for differences in masks
598	WHERE( ABS( u_bkginc(:,:,:) ) > 1.0e+10 ) u_bkginc(:,:,:) = 0.0
599	WHERE( ABS( v_bkginc(:,:,:) ) > 1.0e+10 ) v_bkginc(:,:,:) = 0.0
600	ENDIF
601
602	IF ( ln_sshinc ) THEN
603	CALL iom_get( inum, jpdom_autoglo, 'bckineta', ssh_bkginc, 1 )
604	! Apply the masks
605	ssh_bkginc(:,:) = ssh_bkginc(:,:) * tmask(:,:,1)
606	! Set missing increments to 0.0 rather than 1e+20
607	! to allow for differences in masks
608	WHERE( ABS( ssh_bkginc(:,:) ) > 1.0e+10 ) ssh_bkginc(:,:) = 0.0
609	ENDIF
610
611	IF ( ln_seaiceinc ) THEN
612	CALL iom_get( inum, jpdom_autoglo, 'bckinseaice', seaice_bkginc, 1 )
613	! Apply the masks
614	seaice_bkginc(:,:) = seaice_bkginc(:,:) * tmask(:,:,1)
615	! Set missing increments to 0.0 rather than 1e+20
616	! to allow for differences in masks
617	WHERE( ABS( seaice_bkginc(:,:) ) > 1.0e+10 ) seaice_bkginc(:,:) = 0.0
618	ENDIF
619
620	IF ( lk_bgcinc ) THEN
621	CALL asm_bgc_init_incs( inum )
622	ENDIF
623
624	CALL iom_close( inum )
625
626	ENDIF
627
628	!-----------------------------------------------------------------------
629	! Apply divergence damping filter
630	!-----------------------------------------------------------------------
631
632	IF ( ln_dyninc .AND. nn_divdmp > 0 ) THEN
633
634	CALL wrk_alloc(jpi,jpj,hdiv)
635
636	DO jt = 1, nn_divdmp
637
638	DO jk = 1, jpkm1
639
640	hdiv(:,:) = 0._wp
641
642	DO jj = 2, jpjm1
643	DO ji = fs_2, fs_jpim1 ! vector opt.
644	hdiv(ji,jj) = &
645	( e2u(ji ,jj ) * fse3u(ji ,jj ,jk) * u_bkginc(ji ,jj ,jk) &
646	- e2u(ji-1,jj ) * fse3u(ji-1,jj ,jk) * u_bkginc(ji-1,jj ,jk) &
647	+ e1v(ji ,jj ) * fse3v(ji ,jj ,jk) * v_bkginc(ji ,jj ,jk) &
648	- e1v(ji ,jj-1) * fse3v(ji ,jj-1,jk) * v_bkginc(ji ,jj-1,jk) ) &
649	/ ( e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,jk) )
650	END DO
651	END DO
652
653	CALL lbc_lnk( hdiv, 'T', 1. ) ! lateral boundary cond. (no sign change)
654
655	DO jj = 2, jpjm1
656	DO ji = fs_2, fs_jpim1 ! vector opt.
657	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) &
658	- e1t(ji ,jj)e2t(ji ,jj) hdiv(ji ,jj) ) &
659	/ e1u(ji,jj) * umask(ji,jj,jk)
660	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) &
661	- e1t(ji,jj )e2t(ji,jj ) hdiv(ji,jj ) ) &
662	/ e2v(ji,jj) * vmask(ji,jj,jk)
663	END DO
664	END DO
665
666	END DO
667
668	END DO
669
670	CALL wrk_dealloc(jpi,jpj,hdiv)
671
672	ENDIF
673
674
675
676	!-----------------------------------------------------------------------
677	! Allocate and initialize the background state arrays
678	!-----------------------------------------------------------------------
679
680	IF ( ln_asmdin ) THEN
681
682	ALLOCATE( t_bkg(jpi,jpj,jpk) )
683	ALLOCATE( s_bkg(jpi,jpj,jpk) )
684	ALLOCATE( u_bkg(jpi,jpj,jpk) )
685	ALLOCATE( v_bkg(jpi,jpj,jpk) )
686	ALLOCATE( ssh_bkg(jpi,jpj) )
687
688	t_bkg(:,:,:) = 0.0
689	s_bkg(:,:,:) = 0.0
690	u_bkg(:,:,:) = 0.0
691	v_bkg(:,:,:) = 0.0
692	ssh_bkg(:,:) = 0.0
693
694	!--------------------------------------------------------------------
695	! Read from file the background state at analysis time
696	!--------------------------------------------------------------------
697
698	CALL iom_open( c_asmdin, inum )
699
700	CALL iom_get( inum, 'rdastp', zdate_bkg )
701
702	IF(lwp) THEN
703	WRITE(numout,*)
704	WRITE(numout,*) 'asm_inc_init : Assimilation background state valid at : ', &
705	& NINT( zdate_bkg )
706	WRITE(numout,*) '~~~~~~~~~~~~'
707	ENDIF
708
709	IF ( NINT( zdate_bkg ) /= iitdin_date ) &
710	& CALL ctl_warn( ' Validity time of assimilation background state does', &
711	& ' not agree with Direct Initialization time' )
712
713	IF ( ln_trainc ) THEN
714	CALL iom_get( inum, jpdom_autoglo, 'tn', t_bkg )
715	CALL iom_get( inum, jpdom_autoglo, 'sn', s_bkg )
716	t_bkg(:,:,:) = t_bkg(:,:,:) * tmask(:,:,:)
717	s_bkg(:,:,:) = s_bkg(:,:,:) * tmask(:,:,:)
718	ENDIF
719
720	IF ( ln_dyninc ) THEN
721	CALL iom_get( inum, jpdom_autoglo, 'un', u_bkg )
722	CALL iom_get( inum, jpdom_autoglo, 'vn', v_bkg )
723	u_bkg(:,:,:) = u_bkg(:,:,:) * umask(:,:,:)
724	v_bkg(:,:,:) = v_bkg(:,:,:) * vmask(:,:,:)
725	ENDIF
726
727	IF ( ln_sshinc ) THEN
728	CALL iom_get( inum, jpdom_autoglo, 'sshn', ssh_bkg )
729	ssh_bkg(:,:) = ssh_bkg(:,:) * tmask(:,:,1)
730	ENDIF
731
732	CALL iom_close( inum )
733
734	ENDIF
735
736	IF ( lk_bgcinc ) THEN
737	CALL asm_bgc_init_bkg
738	ENDIF
739	!
740	END SUBROUTINE asm_inc_init
741
742
743	SUBROUTINE calc_date( kit000, kt, kdate0, kdate )
744	!!----------------------------------------------------------------------
745	!! * ROUTINE calc_date *
746	!!
747	!! ** Purpose : Compute the calendar date YYYYMMDD at a given time step.
748	!!
749	!! ** Method : Compute the calendar date YYYYMMDD at a given time step.
750	!!
751	!! ** Action :
752	!!----------------------------------------------------------------------
753	INTEGER, INTENT(IN) :: kit000 ! Initial time step
754	INTEGER, INTENT(IN) :: kt ! Current time step referenced to kit000
755	INTEGER, INTENT(IN) :: kdate0 ! Initial date
756	INTEGER, INTENT(OUT) :: kdate ! Current date reference to kdate0
757	!
758	INTEGER :: iyea0 ! Initial year
759	INTEGER :: imon0 ! Initial month
760	INTEGER :: iday0 ! Initial day
761	INTEGER :: iyea ! Current year
762	INTEGER :: imon ! Current month
763	INTEGER :: iday ! Current day
764	INTEGER :: idaystp ! Number of days between initial and current date
765	INTEGER :: idaycnt ! Day counter
766
767	INTEGER, DIMENSION(12) :: imonth_len !: length in days of the months of the current year
768
769	!-----------------------------------------------------------------------
770	! Compute the calendar date YYYYMMDD
771	!-----------------------------------------------------------------------
772
773	! Initial date
774	iyea0 = kdate0 / 10000
775	imon0 = ( kdate0 - ( iyea0 * 10000 ) ) / 100
776	iday0 = kdate0 - ( iyea0 * 10000 ) - ( imon0 * 100 )
777
778	! Check that kt >= kit000 - 1
779	IF ( kt < kit000 - 1 ) CALL ctl_stop( ' kt must be >= kit000 - 1')
780
781	! If kt = kit000 - 1 then set the date to the restart date
782	IF ( kt == kit000 - 1 ) THEN
783
784	kdate = ndastp
785	RETURN
786
787	ENDIF
788
789	! Compute the number of days from the initial date
790	idaystp = INT( REAL( kt - kit000 ) * rdt / 86400. )
791
792	iday = iday0
793	imon = imon0
794	iyea = iyea0
795	idaycnt = 0
796
797	CALL calc_month_len( iyea, imonth_len )
798
799	DO WHILE ( idaycnt < idaystp )
800	iday = iday + 1
801	IF ( iday > imonth_len(imon) ) THEN
802	iday = 1
803	imon = imon + 1
804	ENDIF
805	IF ( imon > 12 ) THEN
806	imon = 1
807	iyea = iyea + 1
808	CALL calc_month_len( iyea, imonth_len ) ! update month lengths
809	ENDIF
810	idaycnt = idaycnt + 1
811	END DO
812	!
813	kdate = iyea * 10000 + imon * 100 + iday
814	!
815	END SUBROUTINE
816
817
818	SUBROUTINE calc_month_len( iyear, imonth_len )
819	!!----------------------------------------------------------------------
820	!! * ROUTINE calc_month_len *
821	!!
822	!! ** Purpose : Compute the number of days in a months given a year.
823	!!
824	!! ** Method :
825	!!----------------------------------------------------------------------
826	INTEGER, DIMENSION(12) :: imonth_len !: length in days of the months of the current year
827	INTEGER :: iyear !: year
828	!!----------------------------------------------------------------------
829	!
830	! length of the month of the current year (from nleapy, read in namelist)
831	IF ( nleapy < 2 ) THEN
832	imonth_len(:) = (/ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 /)
833	IF ( nleapy == 1 ) THEN ! we are using calendar with leap years
834	IF ( MOD(iyear, 4) == 0 .AND. ( MOD(iyear, 400) == 0 .OR. MOD(iyear, 100) /= 0 ) ) THEN
835	imonth_len(2) = 29
836	ENDIF
837	ENDIF
838	ELSE
839	imonth_len(:) = nleapy ! all months with nleapy days per year
840	ENDIF
841	!
842	END SUBROUTINE
843
844
845	SUBROUTINE tra_asm_inc( kt )
846	!!----------------------------------------------------------------------
847	!! * ROUTINE tra_asm_inc *
848	!!
849	!! ** Purpose : Apply the tracer (T and S) assimilation increments
850	!!
851	!! ** Method : Direct initialization or Incremental Analysis Updating
852	!!
853	!! ** Action :
854	!!----------------------------------------------------------------------
855	INTEGER, INTENT(IN) :: kt ! Current time step
856	!
857	INTEGER :: ji,jj,jk
858	INTEGER :: it
859	REAL(wp) :: zincwgt ! IAU weight for current time step
860	REAL (wp), DIMENSION(jpi,jpj,jpk) :: fzptnz ! 3d freezing point values
861	!!----------------------------------------------------------------------
862
863	! freezing point calculation taken from oc_fz_pt (but calculated for all depths)
864	! used to prevent the applied increments taking the temperature below the local freezing point
865
866	DO jk = 1, jpkm1
867	CALL eos_fzp( tsn(:,:,jk,jp_sal), fzptnz(:,:,jk), fsdept(:,:,jk) )
868	END DO
869
870	IF ( ln_asmiau ) THEN
871
872	!--------------------------------------------------------------------
873	! Incremental Analysis Updating
874	!--------------------------------------------------------------------
875
876	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
877
878	it = kt - nit000 + 1
879	zincwgt = wgtiau(it) / rdt ! IAU weight for the current time step
880
881	IF(lwp) THEN
882	WRITE(numout,*)
883	WRITE(numout,*) 'tra_asm_inc : Tracer IAU at time step = ', kt,' with IAU weight = ', wgtiau(it)
884	WRITE(numout,*) '~~~~~~~~~~~~'
885	ENDIF
886
887	! Update the tracer tendencies
888	DO jk = 1, jpkm1
889	IF (ln_temnofreeze) THEN
890	! Do not apply negative increments if the temperature will fall below freezing
891	WHERE(t_bkginc(:,:,jk) > 0.0_wp .OR. &
892	& tsn(:,:,jk,jp_tem) + tsa(:,:,jk,jp_tem) + t_bkginc(:,:,jk) * wgtiau(it) > fzptnz(:,:,jk) )
893	tsa(:,:,jk,jp_tem) = tsa(:,:,jk,jp_tem) + t_bkginc(:,:,jk) * zincwgt
894	END WHERE
895	ELSE
896	tsa(:,:,jk,jp_tem) = tsa(:,:,jk,jp_tem) + t_bkginc(:,:,jk) * zincwgt
897	ENDIF
898	IF (ln_salfix) THEN
899	! Do not apply negative increments if the salinity will fall below a specified
900	! minimum value salfixmin
901	WHERE(s_bkginc(:,:,jk) > 0.0_wp .OR. &
902	& tsn(:,:,jk,jp_sal) + tsa(:,:,jk,jp_sal) + s_bkginc(:,:,jk) * wgtiau(it) > salfixmin )
903	tsa(:,:,jk,jp_sal) = tsa(:,:,jk,jp_sal) + s_bkginc(:,:,jk) * zincwgt
904	END WHERE
905	ELSE
906	tsa(:,:,jk,jp_sal) = tsa(:,:,jk,jp_sal) + s_bkginc(:,:,jk) * zincwgt
907	ENDIF
908	END DO
909
910	ENDIF
911
912	IF ( kt == nitiaufin_r + 1 ) THEN ! For bias crcn to work
913	DEALLOCATE( t_bkginc )
914	DEALLOCATE( s_bkginc )
915	ENDIF
916
917
918	ELSEIF ( ln_asmdin ) THEN
919
920	!--------------------------------------------------------------------
921	! Direct Initialization
922	!--------------------------------------------------------------------
923
924	IF ( kt == nitdin_r ) THEN
925
926	neuler = 0 ! Force Euler forward step
927
928	! Initialize the now fields with the background + increment
929	IF (ln_temnofreeze) THEN
930	! Do not apply negative increments if the temperature will fall below freezing
931	WHERE( t_bkginc(:,:,:) > 0.0_wp .OR. tsn(:,:,:,jp_tem) + t_bkginc(:,:,:) > fzptnz(:,:,:) )
932	tsn(:,:,:,jp_tem) = t_bkg(:,:,:) + t_bkginc(:,:,:)
933	END WHERE
934	ELSE
935	tsn(:,:,:,jp_tem) = t_bkg(:,:,:) + t_bkginc(:,:,:)
936	ENDIF
937	IF (ln_salfix) THEN
938	! Do not apply negative increments if the salinity will fall below a specified
939	! minimum value salfixmin
940	WHERE( s_bkginc(:,:,:) > 0.0_wp .OR. tsn(:,:,:,jp_sal) + s_bkginc(:,:,:) > salfixmin )
941	tsn(:,:,:,jp_sal) = s_bkg(:,:,:) + s_bkginc(:,:,:)
942	END WHERE
943	ELSE
944	tsn(:,:,:,jp_sal) = s_bkg(:,:,:) + s_bkginc(:,:,:)
945	ENDIF
946
947	tsb(:,:,:,:) = tsn(:,:,:,:) ! Update before fields
948
949	CALL eos( tsb, rhd, rhop, gdept_0(:,:,:) ) ! Before potential and in situ densities
950	!!gm fabien
951	! CALL eos( tsb, rhd, rhop ) ! Before potential and in situ densities
952	!!gm
953
954
955	IF( ln_zps .AND. .NOT. lk_c1d .AND. .NOT. ln_isfcav) &
956	& CALL zps_hde ( kt, jpts, tsb, gtsu, gtsv, & ! Partial steps: before horizontal gradient
957	& rhd, gru , grv ) ! of t, s, rd at the last ocean level
958	IF( ln_zps .AND. .NOT. lk_c1d .AND. ln_isfcav) &
959	& CALL zps_hde_isf( nit000, jpts, tsb, gtsu, gtsv, & ! Partial steps for top cell (ISF)
960	& rhd, gru , grv , aru , arv , gzu , gzv , ge3ru , ge3rv , &
961	& gtui, gtvi, grui, grvi, arui, arvi, gzui, gzvi, ge3rui, ge3rvi ) ! of t, s, rd at the last ocean level
962
963	#if defined key_zdfkpp
964	CALL eos( tsn, rhd, fsdept_n(:,:,:) ) ! Compute rhd
965	!!gm fabien CALL eos( tsn, rhd ) ! Compute rhd
966	#endif
967
968	DEALLOCATE( t_bkginc )
969	DEALLOCATE( s_bkginc )
970	DEALLOCATE( t_bkg )
971	DEALLOCATE( s_bkg )
972	ENDIF
973	!
974	ENDIF
975	! Perhaps the following call should be in step
976	IF ( ln_seaiceinc ) CALL seaice_asm_inc ( kt ) ! apply sea ice concentration increment
977	IF ( ln_sitinc ) CALL sit_asm_inc ( kt ) ! apply sea ice thickness increment
978	!
979	END SUBROUTINE tra_asm_inc
980
981
982	SUBROUTINE dyn_asm_inc( kt )
983	!!----------------------------------------------------------------------
984	!! * ROUTINE dyn_asm_inc *
985	!!
986	!! ** Purpose : Apply the dynamics (u and v) assimilation increments.
987	!!
988	!! ** Method : Direct initialization or Incremental Analysis Updating.
989	!!
990	!! ** Action :
991	!!----------------------------------------------------------------------
992	INTEGER, INTENT(IN) :: kt ! Current time step
993	!
994	INTEGER :: jk
995	INTEGER :: it
996	REAL(wp) :: zincwgt ! IAU weight for current time step
997	!!----------------------------------------------------------------------
998
999	IF ( ln_asmiau ) THEN
1000
1001	!--------------------------------------------------------------------
1002	! Incremental Analysis Updating
1003	!--------------------------------------------------------------------
1004
1005	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1006
1007	it = kt - nit000 + 1
1008	zincwgt = wgtiau(it) / rdt ! IAU weight for the current time step
1009
1010	IF(lwp) THEN
1011	WRITE(numout,*)
1012	WRITE(numout,*) 'dyn_asm_inc : Dynamics IAU at time step = ', &
1013	& kt,' with IAU weight = ', wgtiau(it)
1014	WRITE(numout,*) '~~~~~~~~~~~~'
1015	ENDIF
1016
1017	! Update the dynamic tendencies
1018	DO jk = 1, jpkm1
1019	ua(:,:,jk) = ua(:,:,jk) + u_bkginc(:,:,jk) * zincwgt
1020	va(:,:,jk) = va(:,:,jk) + v_bkginc(:,:,jk) * zincwgt
1021	END DO
1022
1023	IF ( kt == nitiaufin_r ) THEN
1024	DEALLOCATE( u_bkginc )
1025	DEALLOCATE( v_bkginc )
1026	ENDIF
1027
1028	ENDIF
1029
1030	ELSEIF ( ln_asmdin ) THEN
1031
1032	!--------------------------------------------------------------------
1033	! Direct Initialization
1034	!--------------------------------------------------------------------
1035
1036	IF ( kt == nitdin_r ) THEN
1037
1038	neuler = 0 ! Force Euler forward step
1039
1040	! Initialize the now fields with the background + increment
1041	un(:,:,:) = u_bkg(:,:,:) + u_bkginc(:,:,:)
1042	vn(:,:,:) = v_bkg(:,:,:) + v_bkginc(:,:,:)
1043
1044	ub(:,:,:) = un(:,:,:) ! Update before fields
1045	vb(:,:,:) = vn(:,:,:)
1046
1047	DEALLOCATE( u_bkg )
1048	DEALLOCATE( v_bkg )
1049	DEALLOCATE( u_bkginc )
1050	DEALLOCATE( v_bkginc )
1051	ENDIF
1052	!
1053	ENDIF
1054	!
1055	END SUBROUTINE dyn_asm_inc
1056
1057
1058	SUBROUTINE ssh_asm_inc( kt )
1059	!!----------------------------------------------------------------------
1060	!! * ROUTINE ssh_asm_inc *
1061	!!
1062	!! ** Purpose : Apply the sea surface height assimilation increment.
1063	!!
1064	!! ** Method : Direct initialization or Incremental Analysis Updating.
1065	!!
1066	!! ** Action :
1067	!!----------------------------------------------------------------------
1068	INTEGER, INTENT(IN) :: kt ! Current time step
1069	!
1070	INTEGER :: it
1071	INTEGER :: jk
1072	REAL(wp) :: zincwgt ! IAU weight for current time step
1073	!!----------------------------------------------------------------------
1074
1075	IF ( ln_asmiau ) THEN
1076
1077	!--------------------------------------------------------------------
1078	! Incremental Analysis Updating
1079	!--------------------------------------------------------------------
1080
1081	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1082
1083	it = kt - nit000 + 1
1084	zincwgt = wgtiau(it) / rdt ! IAU weight for the current time step
1085
1086	IF(lwp) THEN
1087	WRITE(numout,*)
1088	WRITE(numout,*) 'ssh_asm_inc : SSH IAU at time step = ', &
1089	& kt,' with IAU weight = ', wgtiau(it)
1090	WRITE(numout,*) '~~~~~~~~~~~~'
1091	ENDIF
1092
1093	! Save the tendency associated with the IAU weighted SSH increment
1094	! (applied in dynspg.*)
1095	#if defined key_asminc
1096	ssh_iau(:,:) = ssh_bkginc(:,:) * zincwgt
1097	#endif
1098	IF ( kt == nitiaufin_r ) THEN
1099	DEALLOCATE( ssh_bkginc )
1100	ENDIF
1101
1102	#if defined key_asminc
1103	ELSE
1104	ssh_iau(:,:) = 0._wp
1105	#endif
1106	ENDIF
1107
1108	ELSEIF ( ln_asmdin ) THEN
1109
1110	!--------------------------------------------------------------------
1111	! Direct Initialization
1112	!--------------------------------------------------------------------
1113
1114	IF ( kt == nitdin_r ) THEN
1115
1116	neuler = 0 ! Force Euler forward step
1117
1118	! Initialize the now fields the background + increment
1119	sshn(:,:) = ssh_bkg(:,:) + ssh_bkginc(:,:)
1120
1121	! Update before fields
1122	sshb(:,:) = sshn(:,:)
1123
1124	IF( lk_vvl ) THEN
1125	DO jk = 1, jpk
1126	fse3t_b(:,:,jk) = fse3t_n(:,:,jk)
1127	END DO
1128	ENDIF
1129
1130	DEALLOCATE( ssh_bkg )
1131	DEALLOCATE( ssh_bkginc )
1132
1133	ENDIF
1134	!
1135	ENDIF
1136	!
1137	END SUBROUTINE ssh_asm_inc
1138
1139	SUBROUTINE sit_asm_inc( kt, kindic )
1140	!!----------------------------------------------------------------------
1141	!! * ROUTINE sit_asm_inc *
1142	!!
1143	!! ** Purpose : Apply the sea ice thickness assimilation increment.
1144	!!
1145	!! ** Method : Direct initialization or Incremental Analysis Updating.
1146	!!
1147	!! ** Action :
1148	!!
1149	!!----------------------------------------------------------------------
1150	IMPLICIT NONE
1151	!
1152	INTEGER, INTENT(in) :: kt ! Current time step
1153	INTEGER, INTENT(in), OPTIONAL :: kindic ! flag for disabling the deallocation
1154	!
1155	INTEGER :: it
1156	REAL(wp) :: zincwgt ! IAU weight for current time step
1157	!!----------------------------------------------------------------------
1158
1159	IF ( ln_asmiau ) THEN
1160
1161	!--------------------------------------------------------------------
1162	! Incremental Analysis Updating
1163	!--------------------------------------------------------------------
1164
1165	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1166
1167	it = kt - nit000 + 1
1168	zincwgt = wgtiau(it) ! IAU weight for the current time step
1169	! note this is not a tendency so should not be divided by rdt (as with the tracer and other increments)
1170	! EF: Actually CICE is expecting a tendency so is divided by rdt below
1171
1172	IF(lwp) THEN
1173	WRITE(numout,*)
1174	WRITE(numout,*) 'sit_asm_inc : sea ice thick IAU at time step = ', &
1175	& kt,' with IAU weight = ', wgtiau(it)
1176	WRITE(numout,*) '~~~~~~~~~~~~'
1177	ENDIF
1178
1179	#if defined key_cice && defined key_asminc
1180	! Sea-ice thickness : CICE case. Pass ice thickness increment tendency into CICE
1181	ndsit_da(:,:) = sit_bkginc(:,:) * zincwgt / rdt
1182	#endif
1183
1184	IF ( kt == nitiaufin_r ) THEN
1185	DEALLOCATE( sit_bkginc )
1186	ENDIF
1187
1188	ELSE
1189
1190	#if defined key_cice && defined key_asminc
1191	! Sea-ice thickness : CICE case. Zero ice increment tendency into CICE
1192	ndsit_da(:,:) = 0.0_wp
1193	#endif
1194
1195	ENDIF
1196
1197	ELSEIF ( ln_asmdin ) THEN
1198
1199	!--------------------------------------------------------------------
1200	! Direct Initialization
1201	!--------------------------------------------------------------------
1202
1203	IF ( kt == nitdin_r ) THEN
1204
1205	neuler = 0 ! Force Euler forward step
1206
1207	#if defined key_cice && defined key_asminc
1208	! Sea-ice thickness : CICE case. Pass ice thickness increment tendency into CICE
1209	ndsit_da(:,:) = sit_bkginc(:,:) / rdt
1210	#endif
1211	IF ( .NOT. PRESENT(kindic) ) THEN
1212	DEALLOCATE( sit_bkginc )
1213	END IF
1214
1215	ELSE
1216
1217	#if defined key_cice && defined key_asminc
1218	! Sea-ice thicnkness : CICE case. Zero ice thickness increment tendency into CICE
1219	ndsit_da(:,:) = 0.0_wp
1220	#endif
1221
1222	ENDIF
1223
1224	ENDIF
1225
1226	END SUBROUTINE sit_asm_inc
1227
1228	SUBROUTINE seaice_asm_inc( kt, kindic )
1229	!!----------------------------------------------------------------------
1230	!! * ROUTINE seaice_asm_inc *
1231	!!
1232	!! ** Purpose : Apply the sea ice assimilation increment.
1233	!!
1234	!! ** Method : Direct initialization or Incremental Analysis Updating.
1235	!!
1236	!! ** Action :
1237	!!
1238	!!----------------------------------------------------------------------
1239	IMPLICIT NONE
1240	!
1241	INTEGER, INTENT(in) :: kt ! Current time step
1242	INTEGER, INTENT(in), OPTIONAL :: kindic ! flag for disabling the deallocation
1243	!
1244	INTEGER :: it
1245	REAL(wp) :: zincwgt ! IAU weight for current time step
1246	#if defined key_lim2
1247	REAL(wp), DIMENSION(jpi,jpj) :: zofrld, zohicif, zseaicendg, zhicifinc ! LIM
1248	REAL(wp) :: zhicifmin = 0.5_wp ! ice minimum depth in metres
1249	#endif
1250	!!----------------------------------------------------------------------
1251
1252	IF ( ln_asmiau ) THEN
1253
1254	!--------------------------------------------------------------------
1255	! Incremental Analysis Updating
1256	!--------------------------------------------------------------------
1257
1258	IF ( ( kt >= nitiaustr_r ).AND.( kt <= nitiaufin_r ) ) THEN
1259
1260	it = kt - nit000 + 1
1261	zincwgt = wgtiau(it) ! IAU weight for the current time step
1262	! note this is not a tendency so should not be divided by rdt (as with the tracer and other increments)
1263
1264	IF(lwp) THEN
1265	WRITE(numout,*)
1266	WRITE(numout,*) 'seaice_asm_inc : sea ice conc IAU at time step = ', &
1267	& kt,' with IAU weight = ', wgtiau(it)
1268	WRITE(numout,*) '~~~~~~~~~~~~'
1269	ENDIF
1270
1271	! Sea-ice : LIM-3 case (to add)
1272
1273	#if defined key_lim2
1274	! Sea-ice : LIM-2 case
1275	zofrld (:,:) = frld(:,:)
1276	zohicif(:,:) = hicif(:,:)
1277	!
1278	frld = MIN( MAX( frld (:,:) - seaice_bkginc(:,:) * zincwgt, 0.0_wp), 1.0_wp)
1279	pfrld = MIN( MAX( pfrld(:,:) - seaice_bkginc(:,:) * zincwgt, 0.0_wp), 1.0_wp)
1280	fr_i(:,:) = 1.0_wp - frld(:,:) ! adjust ice fraction
1281	!
1282	zseaicendg(:,:) = zofrld(:,:) - frld(:,:) ! find out actual sea ice nudge applied
1283	!
1284	! Nudge sea ice depth to bring it up to a required minimum depth
1285	WHERE( zseaicendg(:,:) > 0.0_wp .AND. hicif(:,:) < zhicifmin )
1286	zhicifinc(:,:) = (zhicifmin - hicif(:,:)) * zincwgt
1287	ELSEWHERE
1288	zhicifinc(:,:) = 0.0_wp
1289	END WHERE
1290	!
1291	! nudge ice depth
1292	hicif (:,:) = hicif (:,:) + zhicifinc(:,:)
1293	phicif(:,:) = phicif(:,:) + zhicifinc(:,:)
1294	!
1295	! seaice salinity balancing (to add)
1296	#endif
1297
1298	#if defined key_cice && defined key_asminc
1299	! Sea-ice : CICE case. Pass ice increment tendency into CICE
1300	ndaice_da(:,:) = seaice_bkginc(:,:) * zincwgt / rdt
1301	#endif
1302
1303	IF ( kt == nitiaufin_r ) THEN
1304	DEALLOCATE( seaice_bkginc )
1305	ENDIF
1306
1307	ELSE
1308
1309	#if defined key_cice && defined key_asminc
1310	! Sea-ice : CICE case. Zero ice increment tendency into CICE
1311	ndaice_da(:,:) = 0.0_wp
1312	#endif
1313
1314	ENDIF
1315
1316	ELSEIF ( ln_asmdin ) THEN
1317
1318	!--------------------------------------------------------------------
1319	! Direct Initialization
1320	!--------------------------------------------------------------------
1321
1322	IF ( kt == nitdin_r ) THEN
1323
1324	neuler = 0 ! Force Euler forward step
1325
1326	! Sea-ice : LIM-3 case (to add)
1327
1328	#if defined key_lim2
1329	! Sea-ice : LIM-2 case.
1330	zofrld(:,:)=frld(:,:)
1331	zohicif(:,:)=hicif(:,:)
1332	!
1333	! Initialize the now fields the background + increment
1334	frld (:,:) = MIN( MAX( frld(:,:) - seaice_bkginc(:,:), 0.0_wp), 1.0_wp)
1335	pfrld(:,:) = frld(:,:)
1336	fr_i (:,:) = 1.0_wp - frld(:,:) ! adjust ice fraction
1337	zseaicendg(:,:) = zofrld(:,:) - frld(:,:) ! find out actual sea ice nudge applied
1338	!
1339	! Nudge sea ice depth to bring it up to a required minimum depth
1340	WHERE( zseaicendg(:,:) > 0.0_wp .AND. hicif(:,:) < zhicifmin )
1341	zhicifinc(:,:) = (zhicifmin - hicif(:,:)) * zincwgt
1342	ELSEWHERE
1343	zhicifinc(:,:) = 0.0_wp
1344	END WHERE
1345	!
1346	! nudge ice depth
1347	hicif (:,:) = hicif (:,:) + zhicifinc(:,:)
1348	phicif(:,:) = phicif(:,:)
1349	!
1350	! seaice salinity balancing (to add)
1351	#endif
1352
1353	#if defined key_cice && defined key_asminc
1354	! Sea-ice : CICE case. Pass ice increment tendency into CICE
1355	ndaice_da(:,:) = seaice_bkginc(:,:) / rdt
1356	#endif
1357	IF ( .NOT. PRESENT(kindic) ) THEN
1358	DEALLOCATE( seaice_bkginc )
1359	END IF
1360
1361	ELSE
1362
1363	#if defined key_cice && defined key_asminc
1364	! Sea-ice : CICE case. Zero ice increment tendency into CICE
1365	ndaice_da(:,:) = 0.0_wp
1366	#endif
1367
1368	ENDIF
1369
1370	!#if defined defined key_lim2 \|\| defined key_cice
1371	!
1372	! IF (ln_seaicebal ) THEN
1373	! !! balancing salinity increments
1374	! !! simple case from limflx.F90 (doesn't include a mass flux)
1375	! !! assumption is that as ice concentration is reduced or increased
1376	! !! the snow and ice depths remain constant
1377	! !! note that snow is being created where ice concentration is being increased
1378	! !! - could be more sophisticated and
1379	! !! not do this (but would need to alter h_snow)
1380	!
1381	! usave(:,:,:)=sb(:,:,:) ! use array as a temporary store
1382	!
1383	! DO jj = 1, jpj
1384	! DO ji = 1, jpi
1385	! ! calculate change in ice and snow mass per unit area
1386	! ! positive values imply adding salt to the ocean (results from ice formation)
1387	! ! fwf : ice formation and melting
1388	!
1389	! zfons = ( -nfresh_da(ji,jj)soce + nfsalt_da(ji,jj) )rdt
1390	!
1391	! ! change salinity down to mixed layer depth
1392	! mld=hmld_kara(ji,jj)
1393	!
1394	! ! prevent small mld
1395	! ! less than 10m can cause salinity instability
1396	! IF (mld < 10) mld=10
1397	!
1398	! ! set to bottom of a level
1399	! DO jk = jpk-1, 2, -1
1400	! IF ((mld > gdepw(ji,jj,jk)) .and. (mld < gdepw(ji,jj,jk+1))) THEN
1401	! mld=gdepw(ji,jj,jk+1)
1402	! jkmax=jk
1403	! ENDIF
1404	! ENDDO
1405	!
1406	! ! avoid applying salinity balancing in shallow water or on land
1407	! !
1408	!
1409	! ! dsal_ocn (psu kg m^-2) / (kg m^-3 * m)
1410	!
1411	! dsal_ocn=0.0_wp
1412	! sal_thresh=5.0_wp ! minimum salinity threshold for salinity balancing
1413	!
1414	! if (tmask(ji,jj,1) > 0 .AND. tmask(ji,jj,jkmax) > 0 ) &
1415	! dsal_ocn = zfons / (rhop(ji,jj,1) * mld)
1416	!
1417	! ! put increments in for levels in the mixed layer
1418	! ! but prevent salinity below a threshold value
1419	!
1420	! DO jk = 1, jkmax
1421	!
1422	! IF (dsal_ocn > 0.0_wp .or. sb(ji,jj,jk)+dsal_ocn > sal_thresh) THEN
1423	! sb(ji,jj,jk) = sb(ji,jj,jk) + dsal_ocn
1424	! sn(ji,jj,jk) = sn(ji,jj,jk) + dsal_ocn
1425	! ENDIF
1426	!
1427	! ENDDO
1428	!
1429	! ! ! salt exchanges at the ice/ocean interface
1430	! ! zpmess = zfons / rdt_ice ! rdt_ice is ice timestep
1431	! !
1432	! !! Adjust fsalt. A +ve fsalt means adding salt to ocean
1433	! !! fsalt(ji,jj) = fsalt(ji,jj) + zpmess ! adjust fsalt
1434	! !!
1435	! !! emps(ji,jj) = emps(ji,jj) + zpmess ! or adjust emps (see icestp1d)
1436	! !! ! E-P (kg m-2 s-2)
1437	! ! emp(ji,jj) = emp(ji,jj) + zpmess ! E-P (kg m-2 s-2)
1438	! ENDDO !ji
1439	! ENDDO !jj!
1440	!
1441	! ENDIF !ln_seaicebal
1442	!
1443	!#endif
1444
1445	ENDIF
1446
1447	END SUBROUTINE seaice_asm_inc
1448
1449
1450	SUBROUTINE bgc_asm_inc( kt )
1451	!!----------------------------------------------------------------------
1452	!! * ROUTINE bgc_asm_inc *
1453	!!
1454	!! ** Purpose : Apply the biogeochemistry assimilation increments
1455	!!
1456	!! ** Method : Call relevant routines in asmbgc
1457	!!
1458	!! ** Action : Call relevant routines in asmbgc
1459	!!
1460	!!----------------------------------------------------------------------
1461	!!
1462	INTEGER, INTENT(in ) :: kt ! Current time step
1463	!
1464	INTEGER :: icycper ! Dimension of wgtiau
1465	!!
1466	!!----------------------------------------------------------------------
1467
1468	icycper = SIZE( wgtiau )
1469
1470	! Ocean colour variables first
1471	IF ( ln_slchltotinc .OR. ln_slchldiainc .OR. ln_slchlnoninc .OR. &
1472	& ln_slchlnaninc .OR. ln_slchlpicinc .OR. ln_slchldininc .OR. &
1473	& ln_schltotinc .OR. ln_slphytotinc .OR. ln_slphydiainc .OR. &
1474	& ln_slphynoninc ) THEN
1475	CALL phyto2d_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau )
1476	ENDIF
1477
1478	! Surface pCO2/fCO2 next
1479	IF ( ln_sfco2inc .OR. ln_spco2inc ) THEN
1480	CALL pco2_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau, &
1481	& ln_trainc, t_bkginc, s_bkginc )
1482	ENDIF
1483
1484	! Profile pH next
1485	IF ( ln_pphinc ) THEN
1486	CALL ph_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau, &
1487	& ln_trainc, t_bkginc, s_bkginc )
1488	ENDIF
1489
1490	! Then chlorophyll profiles
1491	IF ( ln_plchltotinc .OR. ln_pchltotinc .OR. ln_plchldiainc .OR. &
1492	& ln_plchlnaninc .OR. ln_plchlpicinc .OR. ln_plchldininc ) THEN
1493	CALL phyto3d_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau )
1494	ENDIF
1495
1496	! Remaining bgc profile variables
1497	IF ( ln_pno3inc .OR. ln_psi4inc .OR. ln_pdicinc .OR. &
1498	& ln_palkinc .OR. ln_po2inc .OR. ln_ppo4inc ) THEN
1499	CALL bgc3d_asm_inc( kt, ln_asmdin, ln_asmiau, icycper, wgtiau )
1500	ENDIF
1501
1502	END SUBROUTINE bgc_asm_inc
1503
1504	!!======================================================================
1505	END MODULE asminc

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