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p4zsbc.F90 in branches/2015/nemo_v3_6_STABLE/NEMOGCM/NEMO/TOP_SRC/PISCES/P4Z – NEMO

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source: branches/2015/nemo_v3_6_STABLE/NEMOGCM/NEMO/TOP_SRC/PISCES/P4Z/p4zsbc.F90 @ 6943

Last change on this file since 6943 was 6943, checked in by cetlod, 8 years ago
v3.6stable: bugfixes on PISCES carbon chemistry, see ticket #1774
Property svn:keywords set to `Id`
File size: 25.8 KB

Line
1	MODULE p4zsbc
2	!!======================================================================
3	!! * MODULE p4sbc *
4	!! TOP : PISCES surface boundary conditions of external inputs of nutrients
5	!!======================================================================
6	!! History : 3.5 ! 2012-07 (O. Aumont, C. Ethe) Original code
7	!!----------------------------------------------------------------------
8	#if defined key_pisces
9	!!----------------------------------------------------------------------
10	!! 'key_pisces' PISCES bio-model
11	!!----------------------------------------------------------------------
12	!! p4z_sbc : Read and interpolate time-varying nutrients fluxes
13	!! p4z_sbc_init : Initialization of p4z_sbc
14	!!----------------------------------------------------------------------
15	USE oce_trc ! shared variables between ocean and passive tracers
16	USE trc ! passive tracers common variables
17	USE sms_pisces ! PISCES Source Minus Sink variables
18	USE iom ! I/O manager
19	USE fldread ! time interpolation
20
21	IMPLICIT NONE
22	PRIVATE
23
24	PUBLIC p4z_sbc
25	PUBLIC p4z_sbc_init
26
27	!! * Shared module variables
28	LOGICAL , PUBLIC :: ln_dust !: boolean for dust input from the atmosphere
29	LOGICAL , PUBLIC :: ln_solub !: boolean for variable solubility of atmospheric iron
30	LOGICAL , PUBLIC :: ln_river !: boolean for river input of nutrients
31	LOGICAL , PUBLIC :: ln_ndepo !: boolean for atmospheric deposition of N
32	LOGICAL , PUBLIC :: ln_ironsed !: boolean for Fe input from sediments
33	LOGICAL , PUBLIC :: ln_hydrofe !: boolean for Fe input from hydrothermal vents
34	LOGICAL , PUBLIC :: ln_ironice !: boolean for Fe input from sea ice
35	REAL(wp), PUBLIC :: sedfeinput !: Coastal release of Iron
36	REAL(wp), PUBLIC :: dustsolub !: Solubility of the dust
37	REAL(wp), PUBLIC :: mfrac !: Mineral Content of the dust
38	REAL(wp), PUBLIC :: icefeinput !: Iron concentration in sea ice
39	REAL(wp), PUBLIC :: wdust !: Sinking speed of the dust
40	REAL(wp), PUBLIC :: nitrfix !: Nitrogen fixation rate
41	REAL(wp), PUBLIC :: diazolight !: Nitrogen fixation sensitivty to light
42	REAL(wp), PUBLIC :: concfediaz !: Fe half-saturation Cste for diazotrophs
43	REAL(wp) :: hratio !: Fe:3He ratio assumed for vent iron supply
44
45	LOGICAL , PUBLIC :: ll_sbc
46
47	!! * Module variables
48	LOGICAL :: ll_solub
49
50	INTEGER , PARAMETER :: jpriv = 7 !: Maximum number of river input fields
51	INTEGER , PARAMETER :: jr_dic = 1 !: index of dissolved inorganic carbon
52	INTEGER , PARAMETER :: jr_doc = 2 !: index of dissolved organic carbon
53	INTEGER , PARAMETER :: jr_din = 3 !: index of dissolved inorganic nitrogen
54	INTEGER , PARAMETER :: jr_don = 4 !: index of dissolved organic nitrogen
55	INTEGER , PARAMETER :: jr_dip = 5 !: index of dissolved inorganic phosporus
56	INTEGER , PARAMETER :: jr_dop = 6 !: index of dissolved organic phosphorus
57	INTEGER , PARAMETER :: jr_dsi = 7 !: index of dissolved silicate
58
59
60	TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_dust ! structure of input dust
61	TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_solub ! structure of input dust
62	TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_river ! structure of input riverdic
63	TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_ndepo ! structure of input nitrogen deposition
64	TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_ironsed ! structure of input iron from sediment
65	TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf_hydrofe ! structure of input iron from hydrothermal vents
66
67	INTEGER , PARAMETER :: nbtimes = 365 !: maximum number of times record in a file
68	INTEGER :: ntimes_dust, ntimes_riv, ntimes_ndep ! number of time steps in a file
69	INTEGER :: ntimes_solub, ntimes_hydro ! number of time steps in a file
70
71	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: dust, solub !: dust fields
72	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rivdic, rivalk !: river input fields
73	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rivdin, rivdip !: river input fields
74	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rivdsi !: river input fields
75	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: nitdep !: atmospheric N deposition
76	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: ironsed !: Coastal supply of iron
77	REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: hydrofe !: Hydrothermal vent supply of iron
78
79	REAL(wp), PUBLIC :: sumdepsi, rivalkinput, rivdicinput, nitdepinput
80	REAL(wp), PUBLIC :: rivdininput, rivdipinput, rivdsiinput
81
82
83	!!* Substitution
84	# include "top_substitute.h90"
85	!!----------------------------------------------------------------------
86	!! NEMO/TOP 3.3 , NEMO Consortium (2010)
87	!! $Id$
88	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
89	!!----------------------------------------------------------------------
90
91	CONTAINS
92
93	SUBROUTINE p4z_sbc( kt )
94	!!----------------------------------------------------------------------
95	!! * routine p4z_sbc *
96	!!
97	!! ** purpose : read and interpolate the external sources of nutrients
98	!!
99	!! ** method : read the files and interpolate the appropriate variables
100	!!
101	!! ** input : external netcdf files
102	!!
103	!!----------------------------------------------------------------------
104	!! * arguments
105	INTEGER, INTENT( in ) :: kt ! ocean time step
106
107	!! * local declarations
108	INTEGER :: ji,jj
109	REAL(wp) :: zcoef, zyyss
110	!!---------------------------------------------------------------------
111	!
112	IF( nn_timing == 1 ) CALL timing_start('p4z_sbc')
113
114	!
115	! Compute dust at nit000 or only if there is more than 1 time record in dust file
116	IF( ln_dust ) THEN
117	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_dust > 1 ) ) THEN
118	CALL fld_read( kt, 1, sf_dust )
119	IF( nn_ice_tr == -1 .AND. .NOT. ln_ironice ) THEN
120	dust(:,:) = sf_dust(1)%fnow(:,:,1)
121	ELSE
122	dust(:,:) = sf_dust(1)%fnow(:,:,1) * ( 1.0 - fr_i(:,:) )
123	ENDIF
124	ENDIF
125	ENDIF
126
127	IF( ll_solub ) THEN
128	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_solub > 1 ) ) THEN
129	CALL fld_read( kt, 1, sf_solub )
130	solub(:,:) = sf_solub(1)%fnow(:,:,1)
131	ENDIF
132	ENDIF
133
134	! N/P and Si releases due to coastal rivers
135	! Compute river at nit000 or only if there is more than 1 time record in river file
136	! -----------------------------------------
137	IF( ln_river ) THEN
138	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_riv > 1 ) ) THEN
139	CALL fld_read( kt, 1, sf_river )
140	DO jj = 1, jpj
141	DO ji = 1, jpi
142	zcoef = ryyss * e1e2t(ji,jj) * h_rnf(ji,jj)
143	rivalk(ji,jj) = sf_river(jr_dic)%fnow(ji,jj,1) &
144	& * 1.E3 / ( 12. * zcoef + rtrn )
145	rivdic(ji,jj) = ( sf_river(jr_dic)%fnow(ji,jj,1) + sf_river(jr_doc)%fnow(ji,jj,1) ) &
146	& * 1.E3 / ( 12. * zcoef + rtrn )
147	rivdin(ji,jj) = ( sf_river(jr_din)%fnow(ji,jj,1) + sf_river(jr_don)%fnow(ji,jj,1) ) &
148	& * 1.E3 / rno3 / ( 14. * zcoef + rtrn )
149	rivdip(ji,jj) = ( sf_river(jr_dip)%fnow(ji,jj,1) + sf_river(jr_dop)%fnow(ji,jj,1) ) &
150	& * 1.E3 / po4r / ( 31. * zcoef + rtrn )
151	rivdsi(ji,jj) = sf_river(jr_dsi)%fnow(ji,jj,1) &
152	& * 1.E3 / ( 28.1 * zcoef + rtrn )
153	END DO
154	END DO
155	ENDIF
156	ENDIF
157
158	! Compute N deposition at nit000 or only if there is more than 1 time record in N deposition file
159	IF( ln_ndepo ) THEN
160	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_ndep > 1 ) ) THEN
161	zcoef = rno3 * 14E6 * ryyss
162	CALL fld_read( kt, 1, sf_ndepo )
163	nitdep(:,:) = sf_ndepo(1)%fnow(:,:,1) / zcoef / fse3t(:,:,1)
164	ENDIF
165	IF( lk_vvl ) THEN
166	zcoef = rno3 * 14E6 * ryyss
167	nitdep(:,:) = sf_ndepo(1)%fnow(:,:,1) / zcoef / fse3t(:,:,1)
168	ENDIF
169	ENDIF
170	!
171	IF( nn_timing == 1 ) CALL timing_stop('p4z_sbc')
172	!
173	END SUBROUTINE p4z_sbc
174
175	SUBROUTINE p4z_sbc_init
176
177	!!----------------------------------------------------------------------
178	!! * routine p4z_sbc_init *
179	!!
180	!! ** purpose : initialization of the external sources of nutrients
181	!!
182	!! ** method : read the files and compute the budget
183	!! called at the first timestep (nittrc000)
184	!!
185	!! ** input : external netcdf files
186	!!
187	!!----------------------------------------------------------------------
188	!
189	INTEGER :: ji, jj, jk, jm, ifpr
190	INTEGER :: ii0, ii1, ij0, ij1
191	INTEGER :: numdust, numsolub, numriv, numiron, numdepo, numhydro
192	INTEGER :: ierr, ierr1, ierr2, ierr3
193	INTEGER :: ios ! Local integer output status for namelist read
194	INTEGER :: ik50 ! last level where depth less than 50 m
195	INTEGER :: isrow ! index for ORCA1 starting row
196	REAL(wp) :: zexpide, zdenitide, zmaskt
197	REAL(wp) :: ztimes_dust, ztimes_riv, ztimes_ndep
198	REAL(wp), DIMENSION(nbtimes) :: zsteps ! times records
199	REAL(wp), DIMENSION(:), ALLOCATABLE :: rivinput
200	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zdust, zndepo, zriver, zcmask
201	!
202	CHARACTER(len=100) :: cn_dir ! Root directory for location of ssr files
203	TYPE(FLD_N), DIMENSION(jpriv) :: slf_river ! array of namelist informations on the fields to read
204	TYPE(FLD_N) :: sn_dust, sn_solub, sn_ndepo, sn_ironsed, sn_hydrofe ! informations about the fields to be read
205	TYPE(FLD_N) :: sn_riverdoc, sn_riverdic, sn_riverdsi ! informations about the fields to be read
206	TYPE(FLD_N) :: sn_riverdin, sn_riverdon, sn_riverdip, sn_riverdop
207	!
208	NAMELIST/nampissbc/cn_dir, sn_dust, sn_solub, sn_riverdic, sn_riverdoc, sn_riverdin, sn_riverdon, &
209	& sn_riverdip, sn_riverdop, sn_riverdsi, sn_ndepo, sn_ironsed, sn_hydrofe, &
210	& ln_dust, ln_solub, ln_river, ln_ndepo, ln_ironsed, ln_ironice, ln_hydrofe, &
211	& sedfeinput, dustsolub, icefeinput, wdust, mfrac, nitrfix, diazolight, concfediaz, hratio
212	!!----------------------------------------------------------------------
213	!
214	IF( nn_timing == 1 ) CALL timing_start('p4z_sbc_init')
215	!
216	! !* set file information
217	REWIND( numnatp_ref ) ! Namelist nampissbc in reference namelist : Pisces external sources of nutrients
218	READ ( numnatp_ref, nampissbc, IOSTAT = ios, ERR = 901)
219	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampissbc in reference namelist', lwp )
220
221	REWIND( numnatp_cfg ) ! Namelist nampissbc in configuration namelist : Pisces external sources of nutrients
222	READ ( numnatp_cfg, nampissbc, IOSTAT = ios, ERR = 902 )
223	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampissbc in configuration namelist', lwp )
224	IF(lwm) WRITE ( numonp, nampissbc )
225
226	IF ( ( nn_ice_tr >= 0 ) .AND. ln_ironice ) THEN
227	IF(lwp) THEN
228	WRITE(numout,*) ' ln_ironice incompatible with nn_ice_tr = ', nn_ice_tr
229	WRITE(numout,*) ' Specify your sea ice iron concentration in nampisice instead '
230	WRITE(numout,*) ' ln_ironice is forced to .FALSE. '
231	ln_ironice = .FALSE.
232	ENDIF
233	ENDIF
234
235	IF(lwp) THEN
236	WRITE(numout,*) ' '
237	WRITE(numout,*) ' namelist : nampissbc '
238	WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~ '
239	WRITE(numout,*) ' dust input from the atmosphere ln_dust = ', ln_dust
240	WRITE(numout,*) ' Variable solubility of iron input ln_solub = ', ln_solub
241	WRITE(numout,*) ' river input of nutrients ln_river = ', ln_river
242	WRITE(numout,*) ' atmospheric deposition of n ln_ndepo = ', ln_ndepo
243	WRITE(numout,*) ' Fe input from sediments ln_ironsed = ', ln_ironsed
244	WRITE(numout,*) ' Fe input from seaice ln_ironice = ', ln_ironice
245	WRITE(numout,*) ' fe input from hydrothermal vents ln_hydrofe = ', ln_hydrofe
246	WRITE(numout,*) ' coastal release of iron sedfeinput = ', sedfeinput
247	WRITE(numout,*) ' solubility of the dust dustsolub = ', dustsolub
248	WRITE(numout,*) ' Mineral Fe content of the dust mfrac = ', mfrac
249	WRITE(numout,*) ' Iron concentration in sea ice icefeinput = ', icefeinput
250	WRITE(numout,*) ' sinking speed of the dust wdust = ', wdust
251	WRITE(numout,*) ' nitrogen fixation rate nitrfix = ', nitrfix
252	WRITE(numout,*) ' nitrogen fixation sensitivty to light diazolight = ', diazolight
253	WRITE(numout,*) ' fe half-saturation cste for diazotrophs concfediaz = ', concfediaz
254	WRITE(numout,*) ' Fe to 3He ratio assumed for vent iron supply hratio = ', hratio
255	END IF
256
257	IF( ln_dust .OR. ln_river .OR. ln_ndepo ) THEN ; ll_sbc = .TRUE.
258	ELSE ; ll_sbc = .FALSE.
259	ENDIF
260
261	IF( ln_dust .AND. ln_solub ) THEN ; ll_solub = .TRUE.
262	ELSE ; ll_solub = .FALSE.
263	ENDIF
264
265	! set the number of level over which river runoffs are applied
266	! online configuration : computed in sbcrnf
267	IF( lk_offline ) THEN
268	nk_rnf(:,:) = 1
269	h_rnf (:,:) = fsdept(:,:,1)
270	ENDIF
271
272	! dust input from the atmosphere
273	! ------------------------------
274	IF( ln_dust ) THEN
275	!
276	IF(lwp) WRITE(numout,*) ' initialize dust input from atmosphere '
277	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '
278	!
279	ALLOCATE( dust(jpi,jpj) ) ! allocation
280	!
281	ALLOCATE( sf_dust(1), STAT=ierr ) !* allocate and fill sf_sst (forcing structure) with sn_sst
282	IF( ierr > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_dust structure' )
283	!
284	CALL fld_fill( sf_dust, (/ sn_dust /), cn_dir, 'p4z_sed_init', 'Atmospheric dust deposition', 'nampissed' )
285	ALLOCATE( sf_dust(1)%fnow(jpi,jpj,1) )
286	IF( sn_dust%ln_tint ) ALLOCATE( sf_dust(1)%fdta(jpi,jpj,1,2) )
287	!
288	IF( Agrif_Root() ) THEN ! Only on the master grid
289	! Get total input dust ; need to compute total atmospheric supply of Si in a year
290	CALL iom_open ( TRIM( sn_dust%clname ) , numdust )
291	CALL iom_gettime( numdust, zsteps, kntime=ntimes_dust) ! get number of record in file
292	ALLOCATE( zdust(jpi,jpj,ntimes_dust) )
293	DO jm = 1, ntimes_dust
294	CALL iom_get( numdust, jpdom_data, TRIM( sn_dust%clvar ), zdust(:,:,jm), jm )
295	END DO
296	CALL iom_close( numdust )
297	ztimes_dust = 1._wp / FLOAT( ntimes_dust )
298	sumdepsi = 0.e0
299	DO jm = 1, ntimes_dust
300	sumdepsi = sumdepsi + glob_sum( zdust(:,:,jm) * e1e2t(:,:) * tmask(:,:,1) * ztimes_dust )
301	ENDDO
302	sumdepsi = sumdepsi / ( nyear_len(1) * rday ) * 12. * 8.8 * 0.075 * mfrac / 28.1
303	DEALLOCATE( zdust)
304	ENDIF
305	ELSE
306	sumdepsi = 0._wp
307	END IF
308
309	! Solubility of dust deposition of iron
310	! Only if ln_dust and ln_solubility set to true (ll_solub = .true.)
311	! -----------------------------------------------------------------
312	IF( ll_solub ) THEN
313	!
314	IF(lwp) WRITE(numout,*) ' initialize variable solubility of Fe '
315	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '
316	!
317	ALLOCATE( solub(jpi,jpj) ) ! allocation
318	!
319	ALLOCATE( sf_solub(1), STAT=ierr ) !* allocate and fill sf_sst (forcing structure) with sn_sst
320	IF( ierr > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_solub structure' )
321	!
322	CALL fld_fill( sf_solub, (/ sn_solub /), cn_dir, 'p4z_sed_init', 'Solubility of atm. iron ', 'nampissed' )
323	ALLOCATE( sf_solub(1)%fnow(jpi,jpj,1) )
324	IF( sn_solub%ln_tint ) ALLOCATE( sf_solub(1)%fdta(jpi,jpj,1,2) )
325	! get number of record in file
326	CALL iom_open ( TRIM( sn_solub%clname ) , numsolub )
327	CALL iom_gettime( numsolub, zsteps, kntime=ntimes_solub) ! get number of record in file
328	CALL iom_close( numsolub )
329	ENDIF
330
331	! nutrient input from rivers
332	! --------------------------
333	IF( ln_river ) THEN
334	!
335	slf_river(jr_dic) = sn_riverdic ; slf_river(jr_doc) = sn_riverdoc ; slf_river(jr_din) = sn_riverdin
336	slf_river(jr_don) = sn_riverdon ; slf_river(jr_dip) = sn_riverdip ; slf_river(jr_dop) = sn_riverdop
337	slf_river(jr_dsi) = sn_riverdsi
338	!
339	ALLOCATE( rivdic(jpi,jpj), rivalk(jpi,jpj), rivdin(jpi,jpj), rivdip(jpi,jpj), rivdsi(jpi,jpj) )
340	!
341	ALLOCATE( sf_river(jpriv), rivinput(jpriv), STAT=ierr1 ) !* allocate and fill sf_river (forcing structure) with sn_river_
342	rivinput(:) = 0.0
343
344	IF( ierr1 > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_irver structure' )
345	!
346	CALL fld_fill( sf_river, slf_river, cn_dir, 'p4z_sed_init', 'Input from river ', 'nampissed' )
347	DO ifpr = 1, jpriv
348	ALLOCATE( sf_river(ifpr)%fnow(jpi,jpj,1 ) )
349	IF( slf_river(ifpr)%ln_tint ) ALLOCATE( sf_river(ifpr)%fdta(jpi,jpj,1,2) )
350	END DO
351	IF( Agrif_Root() ) THEN ! Only on the master grid
352	! Get total input rivers ; need to compute total river supply in a year
353	DO ifpr = 1, jpriv
354	CALL iom_open ( TRIM( slf_river(ifpr)%clname ), numriv )
355	CALL iom_gettime( numriv, zsteps, kntime=ntimes_riv)
356	ALLOCATE( zriver(jpi,jpj,ntimes_riv) )
357	DO jm = 1, ntimes_riv
358	CALL iom_get( numriv, jpdom_data, TRIM( slf_river(ifpr)%clvar ), zriver(:,:,jm), jm )
359	END DO
360	CALL iom_close( numriv )
361	ztimes_riv = 1._wp / FLOAT(ntimes_riv)
362	DO jm = 1, ntimes_riv
363	rivinput(ifpr) = rivinput(ifpr) + glob_sum( zriver(:,:,jm) * tmask(:,:,1) * ztimes_riv )
364	END DO
365	DEALLOCATE( zriver)
366	END DO
367	! N/P and Si releases due to coastal rivers
368	! -----------------------------------------
369	rivdicinput = (rivinput(jr_dic) + rivinput(jr_doc) ) * 1E3 / 12._wp
370	rivdininput = (rivinput(jr_din) + rivinput(jr_don) ) * 1E3 / rno3 / 14._wp
371	rivdipinput = (rivinput(jr_dip) + rivinput(jr_dop) ) * 1E3 / po4r / 31._wp
372	rivdsiinput = rivinput(jr_dsi) * 1E3 / 28.1_wp
373	rivalkinput = rivinput(jr_dic) * 1E3 / 12._wp
374	!
375	ENDIF
376	ELSE
377	rivdicinput = 0._wp
378	rivdininput = 0._wp
379	rivdipinput = 0._wp
380	rivdsiinput = 0._wp
381	rivalkinput = 0._wp
382	END IF
383	! nutrient input from dust
384	! ------------------------
385	IF( ln_ndepo ) THEN
386	!
387	IF(lwp) WRITE(numout,*) ' initialize the nutrient input by dust from ndeposition.orca.nc'
388	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
389	!
390	ALLOCATE( nitdep(jpi,jpj) ) ! allocation
391	!
392	ALLOCATE( sf_ndepo(1), STAT=ierr3 ) !* allocate and fill sf_sst (forcing structure) with sn_sst
393	IF( ierr3 > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_ndepo structure' )
394	!
395	CALL fld_fill( sf_ndepo, (/ sn_ndepo /), cn_dir, 'p4z_sed_init', 'Nutrient atmospheric depositon ', 'nampissed' )
396	ALLOCATE( sf_ndepo(1)%fnow(jpi,jpj,1) )
397	IF( sn_ndepo%ln_tint ) ALLOCATE( sf_ndepo(1)%fdta(jpi,jpj,1,2) )
398	!
399	IF( Agrif_Root() ) THEN ! Only on the master grid
400	! Get total input dust ; need to compute total atmospheric supply of N in a year
401	CALL iom_open ( TRIM( sn_ndepo%clname ), numdepo )
402	CALL iom_gettime( numdepo, zsteps, kntime=ntimes_ndep)
403	ALLOCATE( zndepo(jpi,jpj,ntimes_ndep) )
404	DO jm = 1, ntimes_ndep
405	CALL iom_get( numdepo, jpdom_data, TRIM( sn_ndepo%clvar ), zndepo(:,:,jm), jm )
406	END DO
407	CALL iom_close( numdepo )
408	ztimes_ndep = 1._wp / FLOAT( ntimes_ndep )
409	nitdepinput = 0._wp
410	DO jm = 1, ntimes_ndep
411	nitdepinput = nitdepinput + glob_sum( zndepo(:,:,jm) * e1e2t(:,:) * tmask(:,:,1) * ztimes_ndep )
412	ENDDO
413	nitdepinput = nitdepinput / rno3 / 14E6
414	DEALLOCATE( zndepo)
415	ENDIF
416	ELSE
417	nitdepinput = 0._wp
418	ENDIF
419
420	! coastal and island masks
421	! ------------------------
422	IF( ln_ironsed ) THEN
423	!
424	IF(lwp) WRITE(numout,*) ' computation of an island mask to enhance coastal supply of iron'
425	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
426	!
427	ALLOCATE( ironsed(jpi,jpj,jpk) ) ! allocation
428	!
429	CALL iom_open ( TRIM( sn_ironsed%clname ), numiron )
430	ALLOCATE( zcmask(jpi,jpj,jpk) )
431	CALL iom_get ( numiron, jpdom_data, TRIM( sn_ironsed%clvar ), zcmask(:,:,:), 1 )
432	CALL iom_close( numiron )
433	!
434	ik50 = 5 ! last level where depth less than 50 m
435	DO jk = jpkm1, 1, -1
436	IF( gdept_1d(jk) > 50. ) ik50 = jk - 1
437	END DO
438	IF (lwp) WRITE(numout,*)
439	IF (lwp) WRITE(numout,*) ' Level corresponding to 50m depth ', ik50,' ', gdept_1d(ik50+1)
440	IF (lwp) WRITE(numout,*)
441	DO jk = 1, ik50
442	DO jj = 2, jpjm1
443	DO ji = fs_2, fs_jpim1
444	IF( tmask(ji,jj,jk) /= 0. ) THEN
445	zmaskt = tmask(ji+1,jj,jk) * tmask(ji-1,jj,jk) * tmask(ji,jj+1,jk) &
446	& * tmask(ji,jj-1,jk) * tmask(ji,jj,jk+1)
447	IF( zmaskt == 0. ) zcmask(ji,jj,jk ) = MAX( 0.1, zcmask(ji,jj,jk) )
448	END IF
449	END DO
450	END DO
451	END DO
452	!
453	CALL lbc_lnk( zcmask , 'T', 1. ) ! lateral boundary conditions on cmask (sign unchanged)
454	!
455	DO jk = 1, jpk
456	DO jj = 1, jpj
457	DO ji = 1, jpi
458	zexpide = MIN( 8.,( gdept_0(ji,jj,jk) / 500. )**(-1.5) )
459	zdenitide = -0.9543 + 0.7662 * LOG( zexpide ) - 0.235 * LOG( zexpide )**2
460	zcmask(ji,jj,jk) = zcmask(ji,jj,jk) * MIN( 1., EXP( zdenitide ) / 0.5 )
461	END DO
462	END DO
463	END DO
464	! Coastal supply of iron
465	! -------------------------
466	ironsed(:,:,jpk) = 0._wp
467	DO jk = 1, jpkm1
468	ironsed(:,:,jk) = sedfeinput * zcmask(:,:,jk) / ( e3t_0(:,:,jk) * rday )
469	END DO
470	DEALLOCATE( zcmask)
471	ENDIF
472	!
473	! Iron from Hydrothermal vents
474	! ------------------------
475	IF( ln_hydrofe ) THEN
476	!
477	IF(lwp) WRITE(numout,*) ' Input of iron from hydrothermal vents '
478	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
479	!
480	ALLOCATE( hydrofe(jpi,jpj,jpk) ) ! allocation
481	!
482	CALL iom_open ( TRIM( sn_hydrofe%clname ), numhydro )
483	CALL iom_get ( numhydro, jpdom_data, TRIM( sn_hydrofe%clvar ), hydrofe(:,:,:), 1 )
484	CALL iom_close( numhydro )
485	!
486	DO jk = 1, jpk
487	hydrofe(:,:,jk) = ( hydrofe(:,:,jk) * hratio ) / ( e1e2t(:,:) * e3t_0(:,:,jk) * ryyss + rtrn ) / 1000._wp
488	ENDDO
489	!
490	ENDIF
491	!
492	IF( ll_sbc ) CALL p4z_sbc( nit000 )
493	!
494	IF(lwp) THEN
495	WRITE(numout,*)
496	WRITE(numout,*) ' Total input of elements from river supply'
497	WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
498	WRITE(numout,) ' N Supply : ', rivdininputrno31E3/1E1214.,' TgN/yr'
499	WRITE(numout,) ' Si Supply : ', rivdsiinput1E3/1E12*28.1,' TgSi/yr'
500	WRITE(numout,) ' P Supply : ', rivdipinput1E3po4r/1E1231.,' TgP/yr'
501	WRITE(numout,) ' Alk Supply : ', rivalkinput1E3/1E12,' Teq/yr'
502	WRITE(numout,) ' DIC Supply : ', rivdicinput1E3*12./1E12,'TgC/yr'
503	WRITE(numout,*)
504	WRITE(numout,*) ' Total input of elements from atmospheric supply'
505	WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
506	WRITE(numout,) ' N Supply : ', nitdepinputrno31E3/1E1214.,' TgN/yr'
507	WRITE(numout,*)
508	ENDIF
509	!
510	IF( nn_timing == 1 ) CALL timing_stop('p4z_sbc_init')
511	!
512	END SUBROUTINE p4z_sbc_init
513
514	#else
515	!!======================================================================
516	!! Dummy module : No PISCES bio-model
517	!!======================================================================
518	CONTAINS
519	SUBROUTINE p4z_sbc ! Empty routine
520	END SUBROUTINE p4z_sbc
521	#endif
522
523	!!======================================================================
524	END MODULE p4zsbc

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