3 |
|
|
4 |
#include "DIC_OPTIONS.h" |
#include "DIC_OPTIONS.h" |
5 |
#include "PTRACERS_OPTIONS.h" |
#include "PTRACERS_OPTIONS.h" |
|
#include "GCHEM_OPTIONS.h" |
|
6 |
|
|
7 |
CBOP |
CBOP |
8 |
C !ROUTINE: DIC_SURFFORCING |
C !ROUTINE: DIC_SURFFORCING |
9 |
|
|
10 |
C !INTERFACE: ========================================================== |
C !INTERFACE: ========================================================== |
11 |
SUBROUTINE DIC_SURFFORCING( PTR_CO2 , GDC, |
SUBROUTINE DIC_SURFFORCING( PTR_CO2 , PTR_ALK, PTR_PO4, GDC, |
12 |
I bi,bj,imin,imax,jmin,jmax, |
I bi,bj,imin,imax,jmin,jmax, |
13 |
I myIter,myTime,myThid) |
I myIter,myTime,myThid) |
14 |
|
|
15 |
C !DESCRIPTION: |
C !DESCRIPTION: |
16 |
C Calculate the carbon air-sea flux terms |
C Calculate the carbon air-sea flux terms |
17 |
C following external_forcing_dic.F (OCMIP run) from Mick |
C following external_forcing_dic.F (OCMIP run) from Mick |
18 |
|
|
19 |
C !USES: =============================================================== |
C !USES: =============================================================== |
20 |
IMPLICIT NONE |
IMPLICIT NONE |
24 |
#include "PARAMS.h" |
#include "PARAMS.h" |
25 |
#include "GRID.h" |
#include "GRID.h" |
26 |
#include "FFIELDS.h" |
#include "FFIELDS.h" |
27 |
#include "DIC_ABIOTIC.h" |
#include "DIC_VARS.h" |
|
#ifdef DIC_BIOTIC |
|
|
#include "PTRACERS_SIZE.h" |
|
|
#include "PTRACERS.h" |
|
|
#endif |
|
28 |
|
|
29 |
C !INPUT PARAMETERS: =================================================== |
C !INPUT PARAMETERS: =================================================== |
30 |
C myThid :: thread number |
C myThid :: thread number |
34 |
INTEGER myIter, myThid |
INTEGER myIter, myThid |
35 |
_RL myTime |
_RL myTime |
36 |
_RL PTR_CO2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
_RL PTR_CO2(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
37 |
|
_RL PTR_ALK(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
38 |
|
_RL PTR_PO4(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
39 |
INTEGER iMin,iMax,jMin,jMax, bi, bj |
INTEGER iMin,iMax,jMin,jMax, bi, bj |
40 |
|
|
41 |
C !OUTPUT PARAMETERS: =================================================== |
C !OUTPUT PARAMETERS: =================================================== |
42 |
c GDC :: tendency term due to air-sea exchange |
c GDC :: tendency due to air-sea exchange |
43 |
_RL GDC(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL GDC(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
44 |
|
|
45 |
#ifdef ALLOW_PTRACERS |
#ifdef ALLOW_PTRACERS |
46 |
|
|
47 |
C !LOCAL VARIABLES: ==================================================== |
C !LOCAL VARIABLES: ==================================================== |
48 |
INTEGER I,J, kLev, it |
INTEGER i,j, kLev |
49 |
C Number of iterations for pCO2 solvers... |
C Number of iterations for pCO2 solvers... |
50 |
C Solubility relation coefficients |
C Solubility relation coefficients |
51 |
_RL SchmidtNoDIC(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL SchmidtNoDIC(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
52 |
_RL pCO2sat(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL pCO2sat(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
53 |
_RL Kwexch(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL Kwexch(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
54 |
|
_RL pisvel(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
55 |
C local variables for carbon chem |
C local variables for carbon chem |
56 |
_RL surfalk(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL surfalk(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
57 |
_RL surfphos(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL surfphos(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
58 |
_RL surfsi(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL surfsi(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
59 |
|
_RL surftemp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
60 |
|
_RL surfsalt(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
61 |
|
_RL surfdic(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
62 |
|
#ifdef ALLOW_OLD_VIRTUALFLUX |
63 |
_RL VirtualFlux(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL VirtualFlux(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
64 |
|
#endif |
65 |
CEOP |
CEOP |
66 |
|
|
67 |
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc |
68 |
|
|
69 |
kLev=1 |
kLev=1 |
70 |
|
|
71 |
C PRE-INDUSTRIAL STEADY STATE pCO2 = 278.0 ppmv |
cc if coupled to atmsopheric model, use the |
72 |
DO j=1-OLy,sNy+OLy |
cc Co2 value passed from the coupler |
73 |
DO i=1-OLx,sNx+OLx |
c#ifndef USE_ATMOSCO2 |
74 |
AtmospCO2(i,j,bi,bj)=278.0d-6 |
cC PRE-INDUSTRIAL STEADY STATE pCO2 = 278.0 ppmv |
75 |
ENDDO |
c DO j=1-OLy,sNy+OLy |
76 |
ENDDO |
c DO i=1-OLx,sNx+OLx |
77 |
|
c AtmospCO2(i,j,bi,bj)=278.0 _d -6 |
78 |
|
c ENDDO |
79 |
|
c ENDDO |
80 |
|
c#endif |
81 |
|
|
82 |
|
|
83 |
C ================================================================= |
C ================================================================= |
84 |
C determine inorganic carbon chem coefficients |
C determine inorganic carbon chem coefficients |
85 |
DO j=1-OLy,sNy+OLy |
DO j=jmin,jmax |
86 |
DO i=1-OLx,sNx+OLx |
DO i=imin,imax |
87 |
|
|
88 |
#ifdef DIC_BIOTIC |
#ifdef DIC_BIOTIC |
89 |
cQQQQ check ptracer numbers |
cQQQQ check ptracer numbers |
90 |
surfalk(i,j) = PTRACER(i,j,klev,bi,bj,2) |
#ifdef DIC_BOUNDS |
91 |
|
surfalk(i,j) = max(0.4 _d 0, |
92 |
|
& min(10. _d 0,PTR_ALK(i,j,klev))) |
93 |
|
& * maskC(i,j,kLev,bi,bj) |
94 |
|
surfphos(i,j) = max(1.0 _d -11, |
95 |
|
& min(1._d -1, PTR_PO4(i,j,klev))) |
96 |
& * maskC(i,j,kLev,bi,bj) |
& * maskC(i,j,kLev,bi,bj) |
97 |
surfphos(i,j) = PTRACER(i,j,klev,bi,bj,3) |
#else |
98 |
|
surfalk(i,j) = PTR_ALK(i,j,klev) |
99 |
|
& * maskC(i,j,kLev,bi,bj) |
100 |
|
surfphos(i,j) = PTR_PO4(i,j,klev) |
101 |
& * maskC(i,j,kLev,bi,bj) |
& * maskC(i,j,kLev,bi,bj) |
102 |
|
#endif |
103 |
#else |
#else |
104 |
surfalk(i,j) = 2.366595 * salt(i,j,kLev,bi,bj)/gsm_s |
surfalk(i,j) = 2.366595 _d 0 * salt(i,j,kLev,bi,bj)/gsm_s |
105 |
& * maskC(i,j,kLev,bi,bj) |
& * maskC(i,j,kLev,bi,bj) |
106 |
surfphos(i,j) = 5.1225e-4 * maskC(i,j,kLev,bi,bj) |
surfphos(i,j) = 5.1225 _d -4 * maskC(i,j,kLev,bi,bj) |
107 |
#endif |
#endif |
108 |
C FOR NON-INTERACTIVE Si |
C FOR NON-INTERACTIVE Si |
109 |
surfsi(i,j) = SILICA(i,j,bi,bj) * maskC(i,j,kLev,bi,bj) |
surfsi(i,j) = SILICA(i,j,bi,bj) * maskC(i,j,kLev,bi,bj) |
110 |
|
#ifdef DIC_BOUNDS |
111 |
|
surftemp(i,j) = max(-4. _d 0, |
112 |
|
& min(50. _d 0, theta(i,j,kLev,bi,bj))) |
113 |
|
surfsalt(i,j) = max(4. _d 0, |
114 |
|
& min(50. _d 0, salt(i,j,kLev,bi,bj))) |
115 |
|
surfdic(i,j) = max(0.4 _d 0, |
116 |
|
& min(10. _d 0, PTR_CO2(i,j,kLev))) |
117 |
|
#else |
118 |
|
surftemp(i,j) = theta(i,j,kLev,bi,bj) |
119 |
|
surfsalt(i,j) = salt(i,j,kLev,bi,bj) |
120 |
|
surfdic(i,j) = PTR_CO2(i,j,kLev) |
121 |
|
#endif |
122 |
ENDDO |
ENDDO |
123 |
ENDDO |
ENDDO |
124 |
|
|
125 |
CALL CARBON_COEFFS( |
CALL CARBON_COEFFS( |
126 |
I theta,salt, |
I surftemp,surfsalt, |
127 |
I bi,bj,iMin,iMax,jMin,jMax) |
I bi,bj,iMin,iMax,jMin,jMax,myThid) |
128 |
C==================================================================== |
C==================================================================== |
129 |
|
|
130 |
|
DO j=jmin,jmax |
131 |
|
DO i=imin,imax |
132 |
|
C Compute AtmosP and Kwexch_Pre which are re-used for flux of O2 |
133 |
|
|
134 |
|
#ifdef USE_PLOAD |
135 |
|
C Convert anomalous pressure pLoad (in Pa) from atmospheric model |
136 |
|
C to total pressure (in Atm) |
137 |
|
C Note: it is assumed the reference atmospheric pressure is 1Atm=1013mb |
138 |
|
C rather than the actual ref. pressure from Atm. model so that on |
139 |
|
C average AtmosP is about 1 Atm. |
140 |
|
AtmosP(i,j,bi,bj)= 1. _d 0 + pLoad(i,j,bi,bj)/Pa2Atm |
141 |
|
#endif |
142 |
|
|
143 |
|
C Pre-compute part of exchange coefficient: pisvel*(1-fice) |
144 |
|
C Schmidt number is accounted for later |
145 |
|
pisvel(i,j)=0.337 _d 0 *wind(i,j,bi,bj)**2/3.6 _d 5 |
146 |
|
Kwexch_Pre(i,j,bi,bj) = pisvel(i,j) |
147 |
|
& * (1. _d 0 - FIce(i,j,bi,bj)) |
148 |
|
|
149 |
|
ENDDO |
150 |
|
ENDDO |
151 |
|
|
152 |
c pCO2 solver... |
c pCO2 solver... |
153 |
C$TAF LOOP = parallel |
C$TAF LOOP = parallel |
154 |
DO j=1-OLy,sNy+OLy |
DO j=jmin,jmax |
155 |
C$TAF LOOP = parallel |
C$TAF LOOP = parallel |
156 |
DO i=1-OLx,sNx+OLx |
DO i=imin,imax |
157 |
|
|
158 |
IF(maskC(i,j,kLev,bi,bj) .NE. 0.)THEN |
IF ( maskC(i,j,kLev,bi,bj).NE.0. _d 0 ) THEN |
159 |
CALL CALC_PCO2_APPROX( |
CALL CALC_PCO2_APPROX( |
160 |
I theta(i,j,kLev,bi,bj),salt(i,j,kLev,bi,bj), |
I surftemp(i,j),surfsalt(i,j), |
161 |
I PTR_CO2(i,j,kLev), surfphos(i,j), |
I surfdic(i,j), surfphos(i,j), |
162 |
I surfsi(i,j),surfalk(i,j), |
I surfsi(i,j),surfalk(i,j), |
163 |
I ak1(i,j,bi,bj),ak2(i,j,bi,bj), |
I ak1(i,j,bi,bj),ak2(i,j,bi,bj), |
164 |
I ak1p(i,j,bi,bj),ak2p(i,j,bi,bj),ak3p(i,j,bi,bj), |
I ak1p(i,j,bi,bj),ak2p(i,j,bi,bj),ak3p(i,j,bi,bj), |
165 |
I aks(i,j,bi,bj),akb(i,j,bi,bj),akw(i,j,bi,bj), |
I aks(i,j,bi,bj),akb(i,j,bi,bj),akw(i,j,bi,bj), |
166 |
I aksi(i,j,bi,bj),akf(i,j,bi,bj),ff(i,j,bi,bj), |
I aksi(i,j,bi,bj),akf(i,j,bi,bj), |
167 |
|
I ak0(i,j,bi,bj), fugf(i,j,bi,bj), |
168 |
|
I ff(i,j,bi,bj), |
169 |
I bt(i,j,bi,bj),st(i,j,bi,bj),ft(i,j,bi,bj), |
I bt(i,j,bi,bj),st(i,j,bi,bj),ft(i,j,bi,bj), |
170 |
U pH(i,j,bi,bj),pCO2(i,j,bi,bj) ) |
U pH(i,j,bi,bj),pCO2(i,j,bi,bj), |
171 |
|
I i,j,kLev,bi,bj,myIter,myThid ) |
172 |
ELSE |
ELSE |
173 |
pCO2(i,j,bi,bj)=0. _d 0 |
pCO2(i,j,bi,bj)=0. _d 0 |
174 |
END IF |
ENDIF |
175 |
ENDDO |
ENDDO |
176 |
ENDDO |
ENDDO |
177 |
|
|
178 |
DO j=1-OLy,sNy+OLy |
DO j=jmin,jmax |
179 |
DO i=1-OLx,sNx+OLx |
DO i=imin,imax |
180 |
|
|
181 |
IF (maskC(i,j,kLev,bi,bj).NE.0.) THEN |
IF ( maskC(i,j,kLev,bi,bj).NE.0. _d 0 ) THEN |
182 |
C calculate SCHMIDT NO. for CO2 |
C calculate SCHMIDT NO. for CO2 |
183 |
SchmidtNoDIC(i,j) = |
SchmidtNoDIC(i,j) = |
184 |
& sca1 |
& sca1 |
185 |
& + sca2 * theta(i,j,kLev,bi,bj) |
& + sca2 * theta(i,j,kLev,bi,bj) |
186 |
& + sca3 * theta(i,j,kLev,bi,bj)*theta(i,j,kLev,bi,bj) |
& + sca3 * theta(i,j,kLev,bi,bj)*theta(i,j,kLev,bi,bj) |
187 |
& + sca4 * theta(i,j,kLev,bi,bj)*theta(i,j,kLev,bi,bj) |
& + sca4 * theta(i,j,kLev,bi,bj)*theta(i,j,kLev,bi,bj) |
188 |
& *theta(i,j,kLev,bi,bj) |
& *theta(i,j,kLev,bi,bj) |
189 |
|
c make sure Schmidt number isn't negative (will happen if temp>39C) |
190 |
|
SchmidtNoDIC(i,j)=max(1.0 _d -2, SchmidtNoDIC(i,j)) |
191 |
|
|
192 |
C Determine surface flux (FDIC) |
C Determine surface flux (FDIC) |
193 |
C first correct pCO2at for surface atmos pressure |
C first correct pCO2at for surface atmos pressure |
194 |
pCO2sat(i,j) = |
pCO2sat(i,j) = |
195 |
& AtmosP(i,j,bi,bj)*AtmospCO2(i,j,bi,bj) |
& AtmosP(i,j,bi,bj)*AtmospCO2(i,j,bi,bj) |
|
c find exchange coefficient |
|
|
c account for schmidt number and and varible piston velocity |
|
|
Kwexch(i,j) = |
|
|
& pisvel(i,j,bi,bj) |
|
|
& / sqrt(SchmidtNoDIC(i,j)/660.0) |
|
|
c OR use a constant coeff |
|
|
c Kwexch(i,j) = 5e-5 |
|
|
c ice influence |
|
|
cQQ Kwexch(i,j) =(1.d0-Fice(i,j,bi,bj))*Kwexch(i,j) |
|
196 |
|
|
197 |
|
C then account for Schmidt number |
198 |
|
Kwexch(i,j) = Kwexch_Pre(i,j,bi,bj) |
199 |
|
& / sqrt(SchmidtNoDIC(i,j)/660.0 _d 0) |
200 |
|
|
201 |
|
#ifdef WATERVAP_BUG |
202 |
C Calculate flux in terms of DIC units using K0, solubility |
C Calculate flux in terms of DIC units using K0, solubility |
203 |
C Flux = Vp * ([CO2sat] - [CO2]) |
C Flux = Vp * ([CO2sat] - [CO2]) |
204 |
C CO2sat = K0*pCO2atmos*P/P0 |
C CO2sat = K0*pCO2atmos*P/P0 |
205 |
C Converting pCO2 to [CO2] using ff, as in CALC_PCO2 |
C Converting pCO2 to [CO2] using ff, as in CALC_PCO2 |
206 |
FluxCO2(i,j,bi,bj) = |
FluxCO2(i,j,bi,bj) = |
207 |
& maskC(i,j,kLev,bi,bj)*Kwexch(i,j)*( |
& Kwexch(i,j)*( |
208 |
& ak0(i,j,bi,bj)*pCO2sat(i,j) - |
& ak0(i,j,bi,bj)*pCO2sat(i,j) - |
209 |
& ff(i,j,bi,bj)*pCO2(i,j,bi,bj) |
& ff(i,j,bi,bj)*pCO2(i,j,bi,bj) |
210 |
& ) |
& ) |
211 |
ELSE |
#else |
212 |
FluxCO2(i,j,bi,bj) = 0. |
C Corrected by Val Bennington Nov 2010 per G.A. McKinley's finding |
213 |
ENDIF |
C of error in application of water vapor correction |
214 |
|
c Flux = kw*rho*(ff*pCO2atm-k0*FugFac*pCO2ocean) |
215 |
|
FluxCO2(i,j,bi,bj) = |
216 |
|
& Kwexch(i,j)*( |
217 |
|
& ff(i,j,bi,bj)*pCO2sat(i,j) - |
218 |
|
& pCO2(i,j,bi,bj)*fugf(i,j,bi,bj) |
219 |
|
& *ak0(i,j,bi,bj) ) |
220 |
|
& |
221 |
|
#endif |
222 |
|
ELSE |
223 |
|
FluxCO2(i,j,bi,bj) = 0. _d 0 |
224 |
|
ENDIF |
225 |
C convert flux (mol kg-1 m s-1) to (mol m-2 s-1) |
C convert flux (mol kg-1 m s-1) to (mol m-2 s-1) |
226 |
FluxCO2(i,j,bi,bj) = FluxCO2(i,j,bi,bj)/permil |
FluxCO2(i,j,bi,bj) = FluxCO2(i,j,bi,bj)/permil |
227 |
|
|
228 |
IF (maskC(i,j,kLev,bi,bj).NE.0.) THEN |
#ifdef ALLOW_OLD_VIRTUALFLUX |
229 |
|
IF (maskC(i,j,kLev,bi,bj).NE.0. _d 0) THEN |
230 |
c calculate virtual flux |
c calculate virtual flux |
231 |
c EminusPforV = dS/dt*(1/Sglob) |
c EminusPforV = dS/dt*(1/Sglob) |
232 |
C NOTE: Be very careful with signs here! |
C NOTE: Be very careful with signs here! |
234 |
C in salinity. Thus, also increase in other surface tracers |
C in salinity. Thus, also increase in other surface tracers |
235 |
C (i.e. positive virtual flux into surface layer) |
C (i.e. positive virtual flux into surface layer) |
236 |
C ...so here, VirtualFLux = dC/dt! |
C ...so here, VirtualFLux = dC/dt! |
237 |
VirtualFlux(i,j)=gsm_DIC*surfaceTendencyS(i,j,bi,bj)/gsm_s |
VirtualFlux(i,j)=gsm_DIC*surfaceForcingS(i,j,bi,bj)/gsm_s |
238 |
c OR |
c OR |
239 |
c let virtual flux be zero |
c let virtual flux be zero |
240 |
c VirtualFlux(i,j)=0.d0 |
c VirtualFlux(i,j)=0.d0 |
242 |
ELSE |
ELSE |
243 |
VirtualFlux(i,j)=0. _d 0 |
VirtualFlux(i,j)=0. _d 0 |
244 |
ENDIF |
ENDIF |
245 |
|
#endif /* ALLOW_OLD_VIRTUALFLUX */ |
246 |
ENDDO |
ENDDO |
247 |
ENDDO |
ENDDO |
248 |
|
|
249 |
C update tendency |
C update tendency |
250 |
DO j=1-OLy,sNy+OLy |
DO j=jmin,jmax |
251 |
DO i=1-OLx,sNx+OLx |
DO i=imin,imax |
252 |
GDC(i,j)= maskC(i,j,kLev,bi,bj)*( |
GDC(i,j)= recip_drF(kLev)*recip_hFacC(i,j,kLev,bi,bj) |
253 |
& FluxCO2(i,j,bi,bj)*recip_drF(kLev) |
& *(FluxCO2(i,j,bi,bj) |
254 |
& + VirtualFlux(i,j) |
#ifdef ALLOW_OLD_VIRTUALFLUX |
255 |
& ) |
& + VirtualFlux(i,j) |
256 |
|
#endif |
257 |
|
& ) |
258 |
ENDDO |
ENDDO |
259 |
ENDDO |
ENDDO |
260 |
|
|