/[MITgcm]/MITgcm/pkg/dic/dic_biotic_forcing.F
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Revision 1.6 - (hide annotations) (download)
Thu Feb 12 16:11:46 2004 UTC (20 years, 4 months ago) by stephd
Branch: MAIN
CVS Tags: checkpoint52l_pre, hrcube4, checkpoint52n_post, checkpoint52j_post, checkpoint53d_post, checkpoint54a_pre, checkpoint55c_post, checkpoint54e_post, checkpoint54a_post, checkpoint53c_post, checkpoint55d_pre, checkpoint55j_post, checkpoint56b_post, checkpoint52l_post, checkpoint55h_post, checkpoint52k_post, checkpoint54b_post, checkpoint53b_pre, checkpoint55b_post, checkpoint54d_post, checkpoint56c_post, checkpoint52m_post, checkpoint55, checkpoint53a_post, checkpoint54, checkpoint54f_post, checkpoint53b_post, checkpoint55g_post, checkpoint55f_post, checkpoint55i_post, checkpoint56, checkpoint53, checkpoint53g_post, hrcube5, checkpoint55e_post, checkpoint52j_pre, checkpoint53f_post, checkpoint55a_post, checkpoint53d_pre, checkpoint54c_post, checkpoint56a_post, checkpoint55d_post
Changes since 1.5: +36 -18 lines
o clean up and add extra documentation

1 edhill 1.4 #include "DIC_OPTIONS.h"
2 stephd 1.1 #include "GCHEM_OPTIONS.h"
3    
4 stephd 1.6 CBOP
5     C !ROUTINE: DIC_BIOTIC_FORCING
6    
7     C !INTERFACE: ==========================================================
8 stephd 1.1 SUBROUTINE DIC_BIOTIC_FORCING( PTR_DIC, PTR_ALK, PTR_PO4,
9     & PTR_DOP, PTR_O2,
10     #ifdef ALLOW_FE
11     & PTR_FE,
12     #endif
13     & bi,bj,imin,imax,jmin,jmax,
14     & myIter,myTime,myThid)
15    
16 stephd 1.6 C !DESCRIPTION:
17     C updates all the tracers for the effects of air-sea exchange, biological
18     c activity and remineralization
19    
20     C !USES: ===============================================================
21 stephd 1.1 IMPLICIT NONE
22     #include "SIZE.h"
23     #include "DYNVARS.h"
24     #include "EEPARAMS.h"
25     #include "PARAMS.h"
26     #include "GRID.h"
27     #include "DIC_BIOTIC.h"
28     #include "DIC_ABIOTIC.h"
29    
30 stephd 1.6 C !INPUT PARAMETERS: ===================================================
31     C myThid :: thread number
32     C myIter :: current timestep
33     C myTime :: current time
34     C PTR_DIC :: dissolced inorganic carbon
35     C PTR_ALK :: alkalinity
36     C PTR_PO4 :: phosphate
37     c PTR_DOP :: dissolve organic phosphurous
38     c PTR_O2 :: oxygen
39     C PTR_FE :: iron
40 stephd 1.1 INTEGER myIter
41     _RL myTime
42     INTEGER myThid
43     _RL PTR_DIC(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
44     _RL PTR_ALK(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
45     _RL PTR_PO4(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
46     _RL PTR_DOP(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
47     _RL PTR_O2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
48     #ifdef ALLOW_FE
49     _RL PTR_FE(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
50     #endif
51     INTEGER bi, bj, imin, imax, jmin, jmax
52    
53     #ifdef ALLOW_PTRACERS
54     #ifdef DIC_BIOTIC
55 stephd 1.6
56     C !LOCAL VARIABLES: ====================================================
57     C i,j,k :: loop indices
58     C G* :: tendency term for the tracers
59     C SURA :: tendency of alkalinity due to freshwater
60     C SURC :: tendency of DIC due to air-sea exchange
61     C and virtual flux
62     C SURO :: tendency of O2 due to air-sea exchange
63     C BIO :: tendency of PO4 due to biological productivity,
64     C exchange with DOP pool and reminerization
65     C CAR :: carbonate changes due to biological
66     C productivity and reminerization
67     C bioac :: biological productivity
68     C pflux :: changes to PO4 due to flux and reminerlization
69     c cflux :: carbonate changes due to flux and reminerlization
70     c freefe :: iron not bound to ligand
71 stephd 1.1 _RL GDIC(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
72     _RL GALK(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
73     _RL GPO4(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
74     _RL GDOP(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
75     _RL GO2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
76     _RL SURA(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
77     _RL SURC(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
78     _RL SURO(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
79     _RL BIO(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
80     _RL CAR(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
81     _RL bioac(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
82     _RL pflux(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
83     _RL cflux(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
84     #ifdef ALLOW_FE
85     _RL GFE(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
86     _RL freefe(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
87     #endif
88     INTEGER I,J,k
89 stephd 1.6 CEOP
90 stephd 1.1
91     DO k=1,Nr
92     DO j=1-OLy,sNy+OLy
93     DO i=1-OLx,sNx+OLx
94     GDIC(i,j,k)=0.d0
95     GALK(i,j,k)=0.d0
96     GPO4(i,j,k)=0.d0
97     GDOP(i,j,k)=0.d0
98     GO2(i,j,k)=0.d0
99     SURA(i,j)=0.d0
100     SURC(i,j)=0.d0
101     CAR(i,j,k)=0.d0
102     BIO(i,j,k)=0.d0
103     bioac(i,j,k)=0.d0
104     pflux(i,j,k)=0.d0
105     cflux(i,j,k)=0.d0
106     #ifdef ALLOW_FE
107     GFE(i,j,k)=0.d0
108     freefe(i,j,k)=0.d0
109     #endif
110     ENDDO
111     ENDDO
112     ENDDO
113    
114     c carbon air-sea interaction
115     CALL DIC_SURFFORCING( PTR_DIC, SURC,
116     & bi,bj,imin,imax,jmin,jmax,
117     & myIter,myTime,myThid)
118    
119     c alkalinity air-sea interaction
120     CALL ALK_SURFFORCING( PTR_ALK, SURA,
121     & bi,bj,imin,imax,jmin,jmax,
122     & myIter,myTime,myThid)
123    
124     c carbon air-sea interaction
125     CALL O2_SURFFORCING( PTR_O2, SURO,
126     & bi,bj,imin,imax,jmin,jmax,
127     & myIter,myTime,myThid)
128    
129     #ifdef ALLOW_FE
130     c find free iron
131     call fe_chem(bi,bj,iMin,iMax,jMin,jMax, PTR_FE, freefe,
132     & myIter, mythid)
133     #endif
134    
135    
136     c biological activity
137     CALL BIO_EXPORT( PTR_PO4 ,
138     #ifdef ALLOW_FE
139     I PTR_FE,
140     #endif
141     I bioac,
142     I bi,bj,imin,imax,jmin,jmax,
143     I myIter,myTime,myThid)
144    
145     c flux of po4 from layers with biological activity
146     CALL PHOS_FLUX( bioac, pflux,
147     & bi,bj,imin,imax,jmin,jmax,
148     & myIter,myTime,myThid)
149    
150     c carbonate
151     CALL CAR_FLUX( bioac, cflux,
152     & bi,bj,imin,imax,jmin,jmax,
153     & myIter,myTime,myThid)
154    
155     c add all tendencies for PO4, DOP, ALK, DIC
156     DO k=1,Nr
157     DO j=1-OLy,sNy+OLy
158     DO i=1-OLx,sNx+OLx
159     bio(i,j,k)=-bioac(i,j,k)+pflux(i,j,k)
160     & + maskC(i,j,k,bi,bj)*Kdopremin*PTR_DOP(i,j,k)
161     car(i,j,k)=-bioac(i,j,k)* R_cp*rain_ratio(i,j,bi,bj)*
162     & (1.0-DOPfraction)+cflux(i,j,k)
163     GPO4(i,j,k)=bio(i,j,k)
164     GDOP(i,j,k)=+bioac(i,j,k)*DOPfraction
165     & - maskC(i,j,k,bi,bj)*Kdopremin*PTR_DOP(i,j,k)
166     GALK(i,j,k)=+2.d0*car(i,j,k)-R_NP*bio(i,j,k)
167     GDIC(i,j,k)=car(i,j,k)+R_CP*bio(i,j,k)
168     if (PTR_O2(i,j,k).gt.o2crit) then
169     GO2(i,j,k)=R_OP*bio(i,j,k)
170     else
171     GO2(i,j,k)=0.d0
172     endif
173     #ifdef ALLOW_FE
174     GFE(i,j,k)=R_FeP*bio(i,j,k)
175     & -Kscav*freefe(i,j,k)
176     #endif
177     IF (K.eq.1) then
178     GALK(i,j,1)=GALK(i,j,1)+SURA(i,j)
179     GDIC(i,j,1)=GDIC(i,j,1)+SURC(i,j)
180     GO2(i,j,1)=GO2(i,j,1)+SURO(i,j)
181     #ifdef ALLOW_FE
182     GFE(i,j,1)=GFE(i,j,1)+alpfe*
183 jmc 1.5 & InputFe(i,j,bi,bj)/drF(1)
184 stephd 1.1 #endif
185     ENDIF
186     ENDDO
187     ENDDO
188     ENDDO
189    
190    
191     C update
192     DO k=1,Nr
193     DO j=1-OLy,sNy+OLy
194     DO i=1-OLx,sNx+OLx
195     PTR_DIC(i,j,k)=
196     & PTR_DIC(i,j,k)+GDIC(i,j,k)*deltaTtracer
197     PTR_ALK(i,j,k)=
198     & PTR_ALK(i,j,k)+GALK(i,j,k)*deltaTtracer
199     PTR_PO4(i,j,k)=
200     & PTR_PO4(i,j,k)+GPO4(i,j,k)*deltaTtracer
201     PTR_DOP(i,j,k)=
202     & PTR_DOP(i,j,k)+GDOP(i,j,k)*deltaTtracer
203     PTR_O2(i,j,k)=
204     & PTR_O2(i,j,k)+GO2(i,j,k)*deltaTtracer
205     #ifdef ALLOW_FE
206     PTR_FE(i,j,k)=
207     & PTR_FE(i,j,k)+GFE(i,j,k)*deltaTtracer
208     #endif
209     ENDDO
210     ENDDO
211     ENDDO
212    
213     #ifdef ALLOW_TIMEAVE
214     c save averages
215     DO k=1,Nr
216     DO j=1-OLy,sNy+OLy
217     DO i=1-OLx,sNx+OLx
218     BIOave(i,j,k,bi,bj)=BIOave(i,j,k,bi,bj)+
219     & BIOac(i,j,k)*deltaTclock
220     CARave(i,j,k,bi,bj)=CARave(i,j,k,bi,bj)+
221     & CAR(i,j,k)*deltaTclock
222     if (k.eq.1) then
223     SURave(i,j,bi,bj)=SURave(i,j,bi,bj)+
224     & SURC(i,j)*deltaTclock
225     SUROave(i,j,bi,bj)=SUROave(i,j,bi,bj)+
226     & SURO(i,j)*deltaTclock
227     pCO2ave(i,j,bi,bj)=pCO2ave(i,j,bi,bj)+
228     & pCO2(i,j,bi,bj)*deltaTclock
229     pHave(i,j,bi,bj)=pHave(i,j,bi,bj)+
230     & pH(i,j,bi,bj)*deltaTclock
231 stephd 1.2 fluxCO2ave(i,j,bi,bj)=fluxCO2ave(i,j,bi,bj)+
232     & fluxCO2(i,j,bi,bj)*deltaTclock
233 stephd 1.1 endif
234     ENDDO
235     ENDDO
236     ENDDO
237     do k=1,Nr
238     dic_timeave(bi,bj,k)=dic_timeave(bi,bj,k)+deltaTclock
239     enddo
240     #endif
241    
242     #endif
243     #endif
244    
245     c
246     RETURN
247     END

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