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p4zsbc.F90 in trunk/NEMOGCM/NEMO/TOP_SRC/PISCES/P4Z – NEMO

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source: trunk/NEMOGCM/NEMO/TOP_SRC/PISCES/P4Z/p4zsbc.F90 @ 4564

Last change on this file since 4564 was 4564, checked in by cetlod, 10 years ago
bugfix: define mfrac namelist parameter, see ticket #1264
File size: 26.1 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	REAL(wp) :: ryyss !: number of seconds per year
83
84	!!* Substitution
85	# include "top_substitute.h90"
86	!!----------------------------------------------------------------------
87	!! NEMO/TOP 3.3 , NEMO Consortium (2010)
88	!! $Header:$
89	!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
90	!!----------------------------------------------------------------------
91
92	CONTAINS
93
94	SUBROUTINE p4z_sbc( kt )
95	!!----------------------------------------------------------------------
96	!! * routine p4z_sbc *
97	!!
98	!! ** purpose : read and interpolate the external sources of nutrients
99	!!
100	!! ** method : read the files and interpolate the appropriate variables
101	!!
102	!! ** input : external netcdf files
103	!!
104	!!----------------------------------------------------------------------
105	!! * arguments
106	INTEGER, INTENT( in ) :: kt ! ocean time step
107
108	!! * local declarations
109	INTEGER :: ji,jj
110	REAL(wp) :: zcoef, zyyss
111	!!---------------------------------------------------------------------
112	!
113	IF( nn_timing == 1 ) CALL timing_start('p4z_sbc')
114
115	!
116	! Compute dust at nit000 or only if there is more than 1 time record in dust file
117	IF( ln_dust ) THEN
118	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_dust > 1 ) ) THEN
119	CALL fld_read( kt, 1, sf_dust )
120	dust(:,:) = sf_dust(1)%fnow(:,:,1)
121	ENDIF
122	ENDIF
123
124	IF( ll_solub ) THEN
125	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_solub > 1 ) ) THEN
126	CALL fld_read( kt, 1, sf_solub )
127	solub(:,:) = sf_solub(1)%fnow(:,:,1)
128	ENDIF
129	ENDIF
130
131	! N/P and Si releases due to coastal rivers
132	! Compute river at nit000 or only if there is more than 1 time record in river file
133	! -----------------------------------------
134	IF( ln_river ) THEN
135	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_riv > 1 ) ) THEN
136	CALL fld_read( kt, 1, sf_river )
137	DO jj = 1, jpj
138	DO ji = 1, jpi
139	zcoef = ryyss * cvol(ji,jj,1)
140	rivalk(ji,jj) = sf_river(jr_dic)%fnow(ji,jj,1) &
141	& * 1.E3 / ( 12. * zcoef + rtrn )
142	rivdic(ji,jj) = ( sf_river(jr_dic)%fnow(ji,jj,1) + sf_river(jr_doc)%fnow(ji,jj,1) ) &
143	& * 1.E3 / ( 12. * zcoef + rtrn )
144	rivdin(ji,jj) = ( sf_river(jr_din)%fnow(ji,jj,1) + sf_river(jr_don)%fnow(ji,jj,1) ) &
145	& * 1.E3 / rno3 / ( 14. * zcoef + rtrn )
146	rivdip(ji,jj) = ( sf_river(jr_dip)%fnow(ji,jj,1) + sf_river(jr_dop)%fnow(ji,jj,1) ) &
147	& * 1.E3 / po4r / ( 31. * zcoef + rtrn )
148	rivdsi(ji,jj) = sf_river(jr_dsi)%fnow(ji,jj,1) &
149	& * 1.E3 / ( 28.1 * zcoef + rtrn )
150	END DO
151	END DO
152	ENDIF
153	ENDIF
154
155	! Compute N deposition at nit000 or only if there is more than 1 time record in N deposition file
156	IF( ln_ndepo ) THEN
157	IF( kt == nit000 .OR. ( kt /= nit000 .AND. ntimes_ndep > 1 ) ) THEN
158	CALL fld_read( kt, 1, sf_ndepo )
159	DO jj = 1, jpj
160	DO ji = 1, jpi
161	nitdep(ji,jj) = sf_ndepo(1)%fnow(ji,jj,1) / rno3 / ( 14E6 * ryyss * fse3t(ji,jj,1) + rtrn )
162	END DO
163	END DO
164	ENDIF
165	ENDIF
166	!
167	IF( nn_timing == 1 ) CALL timing_stop('p4z_sbc')
168	!
169	END SUBROUTINE p4z_sbc
170
171	SUBROUTINE p4z_sbc_init
172
173	!!----------------------------------------------------------------------
174	!! * routine p4z_sbc_init *
175	!!
176	!! ** purpose : initialization of the external sources of nutrients
177	!!
178	!! ** method : read the files and compute the budget
179	!! called at the first timestep (nittrc000)
180	!!
181	!! ** input : external netcdf files
182	!!
183	!!----------------------------------------------------------------------
184	!
185	INTEGER :: ji, jj, jk, jm, ifpr
186	INTEGER :: ii0, ii1, ij0, ij1
187	INTEGER :: numdust, numsolub, numriv, numiron, numdepo, numhydro
188	INTEGER :: ierr, ierr1, ierr2, ierr3
189	INTEGER :: ios ! Local integer output status for namelist read
190	REAL(wp) :: zexpide, zdenitide, zmaskt
191	REAL(wp) :: ztimes_dust, ztimes_riv, ztimes_ndep
192	REAL(wp), DIMENSION(nbtimes) :: zsteps ! times records
193	REAL(wp), DIMENSION(:), ALLOCATABLE :: rivinput
194	REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: zdust, zndepo, zriver, zcmask
195	!
196	CHARACTER(len=100) :: cn_dir ! Root directory for location of ssr files
197	TYPE(FLD_N), DIMENSION(jpriv) :: slf_river ! array of namelist informations on the fields to read
198	TYPE(FLD_N) :: sn_dust, sn_solub, sn_ndepo, sn_ironsed, sn_hydrofe ! informations about the fields to be read
199	TYPE(FLD_N) :: sn_riverdoc, sn_riverdic, sn_riverdsi ! informations about the fields to be read
200	TYPE(FLD_N) :: sn_riverdin, sn_riverdon, sn_riverdip, sn_riverdop
201	!
202	NAMELIST/nampissbc/cn_dir, sn_dust, sn_solub, sn_riverdic, sn_riverdoc, sn_riverdin, sn_riverdon, &
203	& sn_riverdip, sn_riverdop, sn_riverdsi, sn_ndepo, sn_ironsed, sn_hydrofe, &
204	& ln_dust, ln_solub, ln_river, ln_ndepo, ln_ironsed, ln_ironice, ln_hydrofe, &
205	& sedfeinput, dustsolub, icefeinput, wdust, mfrac, nitrfix, diazolight, concfediaz, hratio
206	!!----------------------------------------------------------------------
207	!
208	IF( nn_timing == 1 ) CALL timing_start('p4z_sbc_init')
209	!
210	ryyss = nyear_len(1) * rday ! number of seconds per year and per month
211	!
212	! !* set file information
213	REWIND( numnatp_ref ) ! Namelist nampissbc in reference namelist : Pisces external sources of nutrients
214	READ ( numnatp_ref, nampissbc, IOSTAT = ios, ERR = 901)
215	901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampissbc in reference namelist', lwp )
216
217	REWIND( numnatp_cfg ) ! Namelist nampissbc in configuration namelist : Pisces external sources of nutrients
218	READ ( numnatp_cfg, nampissbc, IOSTAT = ios, ERR = 902 )
219	902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'nampissbc in configuration namelist', lwp )
220	WRITE ( numonp, nampissbc )
221
222	IF(lwp) THEN
223	WRITE(numout,*) ' '
224	WRITE(numout,*) ' namelist : nampissbc '
225	WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~ '
226	WRITE(numout,*) ' dust input from the atmosphere ln_dust = ', ln_dust
227	WRITE(numout,*) ' Variable solubility of iron input ln_solub = ', ln_solub
228	WRITE(numout,*) ' river input of nutrients ln_river = ', ln_river
229	WRITE(numout,*) ' atmospheric deposition of n ln_ndepo = ', ln_ndepo
230	WRITE(numout,*) ' Fe input from sediments ln_ironsed = ', ln_ironsed
231	WRITE(numout,*) ' Fe input from seaice ln_ironice = ', ln_ironice
232	WRITE(numout,*) ' fe input from hydrothermal vents ln_hydrofe = ', ln_hydrofe
233	WRITE(numout,*) ' coastal release of iron sedfeinput = ', sedfeinput
234	WRITE(numout,*) ' solubility of the dust dustsolub = ', dustsolub
235	WRITE(numout,*) ' Mineral Fe content of the dust mfrac = ', mfrac
236	WRITE(numout,*) ' Iron concentration in sea ice icefeinput = ', icefeinput
237	WRITE(numout,*) ' sinking speed of the dust wdust = ', wdust
238	WRITE(numout,*) ' nitrogen fixation rate nitrfix = ', nitrfix
239	WRITE(numout,*) ' nitrogen fixation sensitivty to light diazolight = ', diazolight
240	WRITE(numout,*) ' fe half-saturation cste for diazotrophs concfediaz = ', concfediaz
241	WRITE(numout,*) ' Fe to 3He ratio assumed for vent iron supply hratio = ', hratio
242	END IF
243
244	IF( ln_dust .OR. ln_river .OR. ln_ndepo ) THEN ; ll_sbc = .TRUE.
245	ELSE ; ll_sbc = .FALSE.
246	ENDIF
247
248	IF( ln_dust .AND. ln_solub ) THEN ; ll_solub = .TRUE.
249	ELSE ; ll_solub = .FALSE.
250	ENDIF
251
252	! dust input from the atmosphere
253	! ------------------------------
254	IF( ln_dust ) THEN
255	!
256	IF(lwp) WRITE(numout,*) ' initialize dust input from atmosphere '
257	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '
258	!
259	ALLOCATE( dust(jpi,jpj) ) ! allocation
260	!
261	ALLOCATE( sf_dust(1), STAT=ierr ) !* allocate and fill sf_sst (forcing structure) with sn_sst
262	IF( ierr > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_dust structure' )
263	!
264	CALL fld_fill( sf_dust, (/ sn_dust /), cn_dir, 'p4z_sed_init', 'Atmospheric dust deposition', 'nampissed' )
265	ALLOCATE( sf_dust(1)%fnow(jpi,jpj,1) )
266	IF( sn_dust%ln_tint ) ALLOCATE( sf_dust(1)%fdta(jpi,jpj,1,2) )
267	!
268	IF( Agrif_Root() ) THEN ! Only on the master grid
269	! Get total input dust ; need to compute total atmospheric supply of Si in a year
270	CALL iom_open ( TRIM( sn_dust%clname ) , numdust )
271	CALL iom_gettime( numdust, zsteps, kntime=ntimes_dust) ! get number of record in file
272	ALLOCATE( zdust(jpi,jpj,ntimes_dust) )
273	DO jm = 1, ntimes_dust
274	CALL iom_get( numdust, jpdom_data, TRIM( sn_dust%clvar ), zdust(:,:,jm), jm )
275	END DO
276	CALL iom_close( numdust )
277	ztimes_dust = 1._wp / FLOAT( ntimes_dust )
278	sumdepsi = 0.e0
279	DO jm = 1, ntimes_dust
280	sumdepsi = sumdepsi + glob_sum( zdust(:,:,jm) * e1e2t(:,:) * tmask(:,:,1) * ztimes_dust )
281	ENDDO
282	sumdepsi = sumdepsi / ( nyear_len(1) * rday ) * 12. * 8.8 * 0.075 * mfrac / 28.1
283	DEALLOCATE( zdust)
284	ENDIF
285	ELSE
286	sumdepsi = 0._wp
287	END IF
288
289	! Solubility of dust deposition of iron
290	! Only if ln_dust and ln_solubility set to true (ll_solub = .true.)
291	! -----------------------------------------------------------------
292	IF( ll_solub ) THEN
293	!
294	IF(lwp) WRITE(numout,*) ' initialize variable solubility of Fe '
295	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ '
296	!
297	ALLOCATE( solub(jpi,jpj) ) ! allocation
298	!
299	ALLOCATE( sf_solub(1), STAT=ierr ) !* allocate and fill sf_sst (forcing structure) with sn_sst
300	IF( ierr > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_solub structure' )
301	!
302	CALL fld_fill( sf_solub, (/ sn_solub /), cn_dir, 'p4z_sed_init', 'Solubility of atm. iron ', 'nampissed' )
303	ALLOCATE( sf_solub(1)%fnow(jpi,jpj,1) )
304	IF( sn_solub%ln_tint ) ALLOCATE( sf_solub(1)%fdta(jpi,jpj,1,2) )
305	! get number of record in file
306	CALL iom_open ( TRIM( sn_solub%clname ) , numsolub )
307	CALL iom_gettime( numsolub, zsteps, kntime=ntimes_solub) ! get number of record in file
308	CALL iom_close( numsolub )
309	ENDIF
310
311	! nutrient input from rivers
312	! --------------------------
313	IF( ln_river ) THEN
314	!
315	slf_river(jr_dic) = sn_riverdic ; slf_river(jr_doc) = sn_riverdoc ; slf_river(jr_din) = sn_riverdin
316	slf_river(jr_don) = sn_riverdon ; slf_river(jr_dip) = sn_riverdip ; slf_river(jr_dop) = sn_riverdop
317	slf_river(jr_dsi) = sn_riverdsi
318	!
319	ALLOCATE( rivdic(jpi,jpj), rivalk(jpi,jpj), rivdin(jpi,jpj), rivdip(jpi,jpj), rivdsi(jpi,jpj) )
320	!
321	ALLOCATE( sf_river(jpriv), rivinput(jpriv), STAT=ierr1 ) !* allocate and fill sf_river (forcing structure) with sn_river_
322	rivinput(:) = 0.0
323
324	IF( ierr1 > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_irver structure' )
325	!
326	CALL fld_fill( sf_river, slf_river, cn_dir, 'p4z_sed_init', 'Input from river ', 'nampissed' )
327	DO ifpr = 1, jpriv
328	ALLOCATE( sf_river(ifpr)%fnow(jpi,jpj,1 ) )
329	IF( slf_river(ifpr)%ln_tint ) ALLOCATE( sf_river(ifpr)%fdta(jpi,jpj,1,2) )
330	END DO
331	IF( Agrif_Root() ) THEN ! Only on the master grid
332	! Get total input rivers ; need to compute total river supply in a year
333	DO ifpr = 1, jpriv
334	CALL iom_open ( TRIM( slf_river(ifpr)%clname ), numriv )
335	CALL iom_gettime( numriv, zsteps, kntime=ntimes_riv)
336	ALLOCATE( zriver(jpi,jpj,ntimes_riv) )
337	DO jm = 1, ntimes_riv
338	CALL iom_get( numriv, jpdom_data, TRIM( slf_river(ifpr)%clvar ), zriver(:,:,jm), jm )
339	END DO
340	CALL iom_close( numriv )
341	ztimes_riv = 1._wp / FLOAT(ntimes_riv)
342	DO jm = 1, ntimes_riv
343	rivinput(ifpr) = rivinput(ifpr) + glob_sum( zriver(:,:,jm) * tmask(:,:,1) * ztimes_riv )
344	END DO
345	DEALLOCATE( zriver)
346	END DO
347	! N/P and Si releases due to coastal rivers
348	! -----------------------------------------
349	rivdicinput = (rivinput(jr_dic) + rivinput(jr_doc) ) * 1E3 / 12._wp
350	rivdininput = (rivinput(jr_din) + rivinput(jr_don) ) * 1E3 / rno3 / 14._wp
351	rivdipinput = (rivinput(jr_dip) + rivinput(jr_dop) ) * 1E3 / po4r / 31._wp
352	rivdsiinput = rivinput(jr_dsi) * 1E3 / 28.1_wp
353	rivalkinput = rivinput(jr_dic) * 1E3 / 12._wp
354	!
355	ENDIF
356	ELSE
357	rivdicinput = 0._wp
358	rivdininput = 0._wp
359	rivdipinput = 0._wp
360	rivdsiinput = 0._wp
361	rivalkinput = 0._wp
362	END IF
363
364	! nutrient input from dust
365	! ------------------------
366	IF( ln_ndepo ) THEN
367	!
368	IF(lwp) WRITE(numout,*) ' initialize the nutrient input by dust from ndeposition.orca.nc'
369	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
370	!
371	ALLOCATE( nitdep(jpi,jpj) ) ! allocation
372	!
373	ALLOCATE( sf_ndepo(1), STAT=ierr3 ) !* allocate and fill sf_sst (forcing structure) with sn_sst
374	IF( ierr3 > 0 ) CALL ctl_stop( 'STOP', 'p4z_sed_init: unable to allocate sf_ndepo structure' )
375	!
376	CALL fld_fill( sf_ndepo, (/ sn_ndepo /), cn_dir, 'p4z_sed_init', 'Nutrient atmospheric depositon ', 'nampissed' )
377	ALLOCATE( sf_ndepo(1)%fnow(jpi,jpj,1) )
378	IF( sn_ndepo%ln_tint ) ALLOCATE( sf_ndepo(1)%fdta(jpi,jpj,1,2) )
379	!
380	IF( Agrif_Root() ) THEN ! Only on the master grid
381	! Get total input dust ; need to compute total atmospheric supply of N in a year
382	CALL iom_open ( TRIM( sn_ndepo%clname ), numdepo )
383	CALL iom_gettime( numdepo, zsteps, kntime=ntimes_ndep)
384	ALLOCATE( zndepo(jpi,jpj,ntimes_ndep) )
385	DO jm = 1, ntimes_ndep
386	CALL iom_get( numdepo, jpdom_data, TRIM( sn_ndepo%clvar ), zndepo(:,:,jm), jm )
387	END DO
388	CALL iom_close( numdepo )
389	ztimes_ndep = 1._wp / FLOAT( ntimes_ndep )
390	nitdepinput = 0._wp
391	DO jm = 1, ntimes_ndep
392	nitdepinput = nitdepinput + glob_sum( zndepo(:,:,jm) * e1e2t(:,:) * tmask(:,:,1) * ztimes_ndep )
393	ENDDO
394	nitdepinput = nitdepinput / rno3 / 14E6
395	DEALLOCATE( zndepo)
396	ENDIF
397	ELSE
398	nitdepinput = 0._wp
399	ENDIF
400
401	! coastal and island masks
402	! ------------------------
403	IF( ln_ironsed ) THEN
404	!
405	IF(lwp) WRITE(numout,*) ' computation of an island mask to enhance coastal supply of iron'
406	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
407	!
408	ALLOCATE( ironsed(jpi,jpj,jpk) ) ! allocation
409	!
410	CALL iom_open ( TRIM( sn_ironsed%clname ), numiron )
411	ALLOCATE( zcmask(jpi,jpj,jpk) )
412	CALL iom_get ( numiron, jpdom_data, TRIM( sn_ironsed%clvar ), zcmask(:,:,:), 1 )
413	CALL iom_close( numiron )
414	!
415	DO jk = 1, 5
416	DO jj = 2, jpjm1
417	DO ji = fs_2, fs_jpim1
418	IF( tmask(ji,jj,jk) /= 0. ) THEN
419	zmaskt = tmask(ji+1,jj,jk) * tmask(ji-1,jj,jk) * tmask(ji,jj+1,jk) &
420	& * tmask(ji,jj-1,jk) * tmask(ji,jj,jk+1)
421	IF( zmaskt == 0. ) zcmask(ji,jj,jk ) = MAX( 0.1, zcmask(ji,jj,jk) )
422	END IF
423	END DO
424	END DO
425	END DO
426	IF( cp_cfg == 'orca' .AND. jp_cfg == 2 ) THEN
427	ii0 = 176 ; ii1 = 176 ! Southern Island : Kerguelen
428	ij0 = 37 ; ij1 = 37 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
429	!
430	ii0 = 119 ; ii1 = 119 ! South Georgia
431	ij0 = 29 ; ij1 = 29 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
432	!
433	ii0 = 111 ; ii1 = 111 ! Falklands
434	ij0 = 35 ; ij1 = 35 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
435	!
436	ii0 = 168 ; ii1 = 168 ! Crozet
437	ij0 = 40 ; ij1 = 40 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
438	!
439	ii0 = 119 ; ii1 = 119 ! South Orkney
440	ij0 = 28 ; ij1 = 28 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
441	!
442	ii0 = 140 ; ii1 = 140 ! Bouvet Island
443	ij0 = 33 ; ij1 = 33 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
444	!
445	ii0 = 178 ; ii1 = 178 ! Prince edwards
446	ij0 = 34 ; ij1 = 34 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
447	!
448	ii0 = 43 ; ii1 = 43 ! Balleny islands
449	ij0 = 21 ; ij1 = 21 ; zcmask( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1), 1:jpk ) = 0.3_wp
450	ENDIF
451	CALL lbc_lnk( zcmask , 'T', 1. ) ! lateral boundary conditions on cmask (sign unchanged)
452	DO jk = 1, jpk
453	DO jj = 1, jpj
454	DO ji = 1, jpi
455	zexpide = MIN( 8.,( fsdept(ji,jj,jk) / 500. )**(-1.5) )
456	zdenitide = -0.9543 + 0.7662 * LOG( zexpide ) - 0.235 * LOG( zexpide )**2
457	zcmask(ji,jj,jk) = zcmask(ji,jj,jk) * MIN( 1., EXP( zdenitide ) / 0.5 )
458	END DO
459	END DO
460	END DO
461	! Coastal supply of iron
462	! -------------------------
463	ironsed(:,:,jpk) = 0._wp
464	DO jk = 1, jpkm1
465	ironsed(:,:,jk) = sedfeinput * zcmask(:,:,jk) / ( fse3t(:,:,jk) * rday )
466	END DO
467	DEALLOCATE( zcmask)
468	ENDIF
469	!
470	! Iron from Hydrothermal vents
471	! ------------------------
472	IF( ln_hydrofe ) THEN
473	!
474	IF(lwp) WRITE(numout,*) ' Input of iron from hydrothermal vents '
475	IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
476	!
477	ALLOCATE( hydrofe(jpi,jpj,jpk) ) ! allocation
478	!
479	CALL iom_open ( TRIM( sn_hydrofe%clname ), numhydro )
480	CALL iom_get ( numhydro, jpdom_data, TRIM( sn_hydrofe%clvar ), hydrofe(:,:,:), 1 )
481	CALL iom_close( numhydro )
482	!
483	hydrofe(:,:,:) = ( hydrofe(:,:,:) * hratio ) / ( cvol(:,:,:) * ryyss + rtrn ) / 1000._wp
484	!
485	ENDIF
486	!
487	IF( ll_sbc ) CALL p4z_sbc( nit000 )
488	!
489	IF(lwp) THEN
490	WRITE(numout,*)
491	WRITE(numout,*) ' Total input of elements from river supply'
492	WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
493	WRITE(numout,) ' N Supply : ', rivdininputrno31E3/1E1214.,' TgN/yr'
494	WRITE(numout,) ' Si Supply : ', rivdsiinput1E3/1E12*28.1,' TgSi/yr'
495	WRITE(numout,) ' P Supply : ', rivdipinput1E3po4r/1E1231.,' TgP/yr'
496	WRITE(numout,) ' Alk Supply : ', rivalkinput1E3/1E12,' Teq/yr'
497	WRITE(numout,) ' DIC Supply : ', rivdicinput1E3*12./1E12,'TgC/yr'
498	WRITE(numout,*)
499	WRITE(numout,*) ' Total input of elements from atmospheric supply'
500	WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~'
501	WRITE(numout,) ' N Supply : ', nitdepinputrno31E3/1E1214.,' TgN/yr'
502	WRITE(numout,*)
503	ENDIF
504	!
505	IF( nn_timing == 1 ) CALL timing_stop('p4z_sbc_init')
506	!
507	END SUBROUTINE p4z_sbc_init
508
509	#else
510	!!======================================================================
511	!! Dummy module : No PISCES bio-model
512	!!======================================================================
513	CONTAINS
514	SUBROUTINE p4z_sbc ! Empty routine
515	END SUBROUTINE p4z_sbc
516	#endif
517
518	!!======================================================================
519	END MODULE p4zsbc

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