1 | MODULE trcexp |
---|
2 | !!====================================================================== |
---|
3 | !! *** MODULE p4sed *** |
---|
4 | !! TOP : PISCES Compute loss of organic matter in the sediments |
---|
5 | !!====================================================================== |
---|
6 | !! History : - ! 1999 (O. Aumont, C. Le Quere) original code |
---|
7 | !! - ! 2001-05 (O. Aumont, E. Kestenare) add sediment computations |
---|
8 | !! 1.0 ! 2005-06 (A.-S. Kremeur) new temporal integration for sedpoc |
---|
9 | !! 2.0 ! 2007-12 (C. Deltel, G. Madec) F90 |
---|
10 | !!---------------------------------------------------------------------- |
---|
11 | #if defined key_lobster |
---|
12 | !!---------------------------------------------------------------------- |
---|
13 | !! 'key_lobster' LOBSTER bio-model |
---|
14 | !!---------------------------------------------------------------------- |
---|
15 | !! trc_exp : Compute loss of organic matter in the sediments |
---|
16 | !!---------------------------------------------------------------------- |
---|
17 | USE oce_trc ! |
---|
18 | USE sms_lobster |
---|
19 | USE lbclnk |
---|
20 | USE trc |
---|
21 | USE trcnam_trp |
---|
22 | USE prtctl_trc ! Print control for debbuging |
---|
23 | USE trdmod_oce |
---|
24 | USE trdmod_trc |
---|
25 | USE iom |
---|
26 | |
---|
27 | IMPLICIT NONE |
---|
28 | PRIVATE |
---|
29 | |
---|
30 | PUBLIC trc_exp ! called in p4zprg.F90 |
---|
31 | |
---|
32 | !!* Substitution |
---|
33 | # include "top_substitute.h90" |
---|
34 | !!---------------------------------------------------------------------- |
---|
35 | !! NEMO/TOP 3.3 , NEMO Consortium (2010) |
---|
36 | !! $Id$ |
---|
37 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
---|
38 | !!---------------------------------------------------------------------- |
---|
39 | |
---|
40 | CONTAINS |
---|
41 | |
---|
42 | SUBROUTINE trc_exp( kt ) |
---|
43 | !!--------------------------------------------------------------------- |
---|
44 | !! *** ROUTINE trc_exp *** |
---|
45 | !! |
---|
46 | !! ** Purpose : MODELS EXPORT OF BIOGENIC MATTER (POC ''SOFT |
---|
47 | !! TISSUE'') AND ITS DISTRIBUTION IN WATER COLUMN |
---|
48 | !! |
---|
49 | !! ** Method : - IN THE SURFACE LAYER POC IS PRODUCED ACCORDING TO |
---|
50 | !! NURTRIENTS AVAILABLE AND GROWTH CONDITIONS. NUTRIENT UPTAKE |
---|
51 | !! KINETICS FOLLOW MICHAELIS-MENTON FORMULATION. |
---|
52 | !! THE TOTAL PARTICLE AMOUNT PRODUCED, IS DISTRIBUTED IN THE WATER |
---|
53 | !! COLUMN BELOW THE SURFACE LAYER. |
---|
54 | !!--------------------------------------------------------------------- |
---|
55 | !! |
---|
56 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
---|
57 | !! |
---|
58 | INTEGER :: ji, jj, jk, jl, ikt, ierr |
---|
59 | REAL(wp) :: zgeolpoc, zfact, zwork, ze3t, zsedpocd |
---|
60 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: ztrbio |
---|
61 | CHARACTER (len=25) :: charout |
---|
62 | !!--------------------------------------------------------------------- |
---|
63 | ! |
---|
64 | IF( nn_timing == 1 ) CALL timing_start('trc_exp') |
---|
65 | ! |
---|
66 | IF( kt == nittrc000 ) THEN |
---|
67 | IF(lwp) WRITE(numout,*) |
---|
68 | IF(lwp) WRITE(numout,*) ' trc_exp: LOBSTER export' |
---|
69 | IF(lwp) WRITE(numout,*) ' ~~~~~~~' |
---|
70 | ENDIF |
---|
71 | |
---|
72 | IF( l_trdtrc ) THEN |
---|
73 | ALLOCATE( ztrbio(jpi,jpj,jpk) , STAT = ierr ) ! temporary save of trends |
---|
74 | IF( ierr > 0 ) THEN |
---|
75 | CALL ctl_stop( 'trc_exp: unable to allocate ztrbio array' ) ; RETURN |
---|
76 | ENDIF |
---|
77 | ztrbio(:,:,:) = tra(:,:,:,jp_lob_no3) |
---|
78 | ENDIF |
---|
79 | |
---|
80 | ! VERTICAL DISTRIBUTION OF NEWLY PRODUCED BIOGENIC |
---|
81 | ! POC IN THE WATER COLUMN |
---|
82 | ! (PARTS OF NEWLY FORMED MATTER REMAINING IN THE DIFFERENT |
---|
83 | ! LAYERS IS DETERMINED BY DMIN3 DEFINED IN sms_lobster.F90 |
---|
84 | ! ---------------------------------------------------------------------- |
---|
85 | DO jk = 1, jpkm1 |
---|
86 | DO jj = 2, jpjm1 |
---|
87 | DO ji = fs_2, fs_jpim1 |
---|
88 | ze3t = 1. / fse3t(ji,jj,jk) |
---|
89 | tra(ji,jj,jk,jp_lob_no3) = tra(ji,jj,jk,jp_lob_no3) + ze3t * dmin3(ji,jj,jk) * fbod(ji,jj) |
---|
90 | END DO |
---|
91 | END DO |
---|
92 | END DO |
---|
93 | |
---|
94 | ! Find the last level of the water column |
---|
95 | ! Compute fluxes due to sinking particles (slow) |
---|
96 | |
---|
97 | |
---|
98 | zgeolpoc = 0.e0 ! Initialization |
---|
99 | ! Release of nutrients from the "simple" sediment |
---|
100 | DO jj = 2, jpjm1 |
---|
101 | DO ji = fs_2, fs_jpim1 |
---|
102 | ikt = mbkt(ji,jj) |
---|
103 | tra(ji,jj,ikt,jp_lob_no3) = tra(ji,jj,ikt,jp_lob_no3) + sedlam * sedpocn(ji,jj) / fse3t(ji,jj,ikt) |
---|
104 | ! Deposition of organic matter in the sediment |
---|
105 | zwork = vsed * trn(ji,jj,ikt,jp_lob_det) |
---|
106 | sedpoca(ji,jj) = ( zwork + dminl(ji,jj) * fbod(ji,jj) & |
---|
107 | & - sedlam * sedpocn(ji,jj) - sedlostpoc * sedpocn(ji,jj) ) * rdt |
---|
108 | zgeolpoc = zgeolpoc + sedlostpoc * sedpocn(ji,jj) * e1e2t(ji,jj) |
---|
109 | END DO |
---|
110 | END DO |
---|
111 | |
---|
112 | DO jj = 2, jpjm1 |
---|
113 | DO ji = fs_2, fs_jpim1 |
---|
114 | tra(ji,jj,1,jp_lob_no3) = tra(ji,jj,1,jp_lob_no3) + zgeolpoc * cmask(ji,jj) / areacot / fse3t(ji,jj,1) |
---|
115 | END DO |
---|
116 | END DO |
---|
117 | |
---|
118 | CALL lbc_lnk( sedpocn, 'T', 1. ) |
---|
119 | |
---|
120 | ! Oa & Ek: diagnostics depending on jpdia2d ! left as example |
---|
121 | IF( ln_diatrc ) THEN |
---|
122 | IF( lk_iomput ) THEN ; CALL iom_put( "SEDPOC" , sedpocn ) |
---|
123 | ELSE ; trc2d(:,:,jp_lob0_2d + 18) = sedpocn(:,:) |
---|
124 | ENDIF |
---|
125 | ENDIF |
---|
126 | |
---|
127 | |
---|
128 | ! Time filter and swap of arrays |
---|
129 | ! ------------------------------ |
---|
130 | IF( neuler == 0 .AND. kt == nittrc000 ) THEN ! Euler time-stepping at first time-step |
---|
131 | ! ! (only swap) |
---|
132 | sedpocn(:,:) = sedpoca(:,:) |
---|
133 | ! |
---|
134 | ELSE |
---|
135 | ! |
---|
136 | DO jj = 1, jpj |
---|
137 | DO ji = 1, jpi |
---|
138 | zsedpocd = sedpoca(ji,jj) - 2. * sedpocn(ji,jj) + sedpocb(ji,jj) ! time laplacian on tracers |
---|
139 | sedpocb(ji,jj) = sedpocn(ji,jj) + atfp * zsedpocd ! sedpocb <-- filtered sedpocn |
---|
140 | sedpocn(ji,jj) = sedpoca(ji,jj) ! sedpocn <-- sedpoca |
---|
141 | END DO |
---|
142 | END DO |
---|
143 | ! |
---|
144 | ENDIF |
---|
145 | sedpoca(:,:) = 0.e0 |
---|
146 | ! |
---|
147 | IF( l_trdtrc ) THEN |
---|
148 | ztrbio(:,:,:) = tra(:,:,:,jp_lob_no3) - ztrbio(:,:,:) |
---|
149 | jl = jp_lob0_trd + 16 |
---|
150 | CALL trd_mod_trc( ztrbio, jl, kt ) ! handle the trend |
---|
151 | DEALLOCATE( ztrbio ) |
---|
152 | ENDIF |
---|
153 | |
---|
154 | IF(ln_ctl) THEN ! print mean trends (used for debugging) |
---|
155 | WRITE(charout, FMT="('exp')") |
---|
156 | CALL prt_ctl_trc_info(charout) |
---|
157 | CALL prt_ctl_trc(tab4d=tra, mask=tmask, clinfo=ctrcnm) |
---|
158 | ENDIF |
---|
159 | ! |
---|
160 | IF( nn_timing == 1 ) CALL timing_stop('trc_exp') |
---|
161 | ! |
---|
162 | END SUBROUTINE trc_exp |
---|
163 | |
---|
164 | #else |
---|
165 | !!====================================================================== |
---|
166 | !! Dummy module : No PISCES bio-model |
---|
167 | !!====================================================================== |
---|
168 | CONTAINS |
---|
169 | SUBROUTINE trc_exp( kt ) ! Empty routine |
---|
170 | INTEGER, INTENT( in ) :: kt |
---|
171 | WRITE(*,*) 'trc_exp: You should not have seen this print! error?', kt |
---|
172 | END SUBROUTINE trc_exp |
---|
173 | #endif |
---|
174 | |
---|
175 | !!====================================================================== |
---|
176 | END MODULE trcexp |
---|