| 1 | MODULE phytoplankton_mod |
|---|
| 2 | !!====================================================================== |
|---|
| 3 | !! *** MODULE phytoplankton_mod *** |
|---|
| 4 | !! Calculates phytoplankton growth |
|---|
| 5 | !!====================================================================== |
|---|
| 6 | !! History : |
|---|
| 7 | !! - ! 2017-04 (M. Stringer) Code taken from trcbio_medusa.F90 |
|---|
| 8 | !! - ! 2017-08 (A. Yool) Mean mixed layer chlorophyll |
|---|
| 9 | !!---------------------------------------------------------------------- |
|---|
| 10 | #if defined key_medusa |
|---|
| 11 | !!---------------------------------------------------------------------- |
|---|
| 12 | !! MEDUSA bio-model |
|---|
| 13 | !!---------------------------------------------------------------------- |
|---|
| 14 | |
|---|
| 15 | USE yomhook, ONLY: lhook, dr_hook |
|---|
| 16 | USE parkind1, ONLY: jprb, jpim |
|---|
| 17 | |
|---|
| 18 | IMPLICIT NONE |
|---|
| 19 | PRIVATE |
|---|
| 20 | |
|---|
| 21 | PUBLIC phytoplankton ! Called in plankton.F90 |
|---|
| 22 | |
|---|
| 23 | !!---------------------------------------------------------------------- |
|---|
| 24 | !! NEMO/TOP 2.0 , LOCEAN-IPSL (2007) |
|---|
| 25 | !! $Id$ |
|---|
| 26 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
|---|
| 27 | !!---------------------------------------------------------------------- |
|---|
| 28 | |
|---|
| 29 | CONTAINS |
|---|
| 30 | |
|---|
| 31 | SUBROUTINE phytoplankton( jk ) |
|---|
| 32 | !!--------------------------------------------------------------------- |
|---|
| 33 | !! *** ROUTINE phytoplankton *** |
|---|
| 34 | !! This called from PLANKTON and calculates the phytoplankton |
|---|
| 35 | !! growth. |
|---|
| 36 | !!---------------------------------------------------------------------- |
|---|
| 37 | USE bio_medusa_mod, ONLY: fdep1, ffld, ffln2, & |
|---|
| 38 | fjlim_pd, fjlim_pn, & |
|---|
| 39 | fnld, fnln, & |
|---|
| 40 | fprd, fprd_ml, fprds, & |
|---|
| 41 | fprn, fprn_ml, frd, frn, & |
|---|
| 42 | fsin, fsld, fsld2, fthetad, fthetan, & |
|---|
| 43 | ftot_det, ftot_dtc, ftot_pd, & |
|---|
| 44 | ftot_pn, ftot_zme, ftot_zmi, & |
|---|
| 45 | fun_Q10, fun_T, idf, idfval, & |
|---|
| 46 | zchd, zchn, zdet, zdin, zdtc, & |
|---|
| 47 | zfer, zpds, zphd, zphn, zsil, & |
|---|
| 48 | zzme, zzmi, fchl_ml |
|---|
| 49 | USE dom_oce, ONLY: e3t_0, gdepw_0, tmask |
|---|
| 50 | #if defined key_vvl |
|---|
| 51 | USE dom_oce, ONLY: e3t_n, gdepw_n |
|---|
| 52 | #endif |
|---|
| 53 | USE in_out_manager, ONLY: lwp, numout |
|---|
| 54 | USE oce, ONLY: tsn |
|---|
| 55 | USE par_kind, ONLY: wp |
|---|
| 56 | USE par_oce, ONLY: jp_tem, jpi, jpim1, jpj, jpjm1 |
|---|
| 57 | USE phycst, ONLY: rsmall |
|---|
| 58 | USE sms_medusa, ONLY: jliebig, jphy, jq10, & |
|---|
| 59 | xald, xaln, xfld, xfln, & |
|---|
| 60 | xnld, xnln, xnsi0, xpar, & |
|---|
| 61 | xsin0, xsld, xthetam, xthetamd, xuif, & |
|---|
| 62 | xvpd, xvpn, xxi |
|---|
| 63 | USE zdfmxl, ONLY: hmld |
|---|
| 64 | USE lbclnk, ONLY: lbc_lnk |
|---|
| 65 | |
|---|
| 66 | !!* Substitution |
|---|
| 67 | # include "domzgr_substitute.h90" |
|---|
| 68 | |
|---|
| 69 | !! Level |
|---|
| 70 | INTEGER, INTENT( in ) :: jk |
|---|
| 71 | |
|---|
| 72 | INTEGER :: ji, jj |
|---|
| 73 | |
|---|
| 74 | REAL(wp), DIMENSION(jpi,jpj) :: faln, fchn, fjln |
|---|
| 75 | REAL(wp), DIMENSION(jpi,jpj) :: fald, fchd, fjld |
|---|
| 76 | REAL(wp) :: fchn1, fchd1 |
|---|
| 77 | !! AXY (03/02/11): add in Liebig terms |
|---|
| 78 | REAL(wp) :: fpnlim, fpdlim |
|---|
| 79 | !! AXY (16/07/09): add in Eppley curve functionality |
|---|
| 80 | REAL(wp) :: xvpnT,xvpdT |
|---|
| 81 | !! silicon cycle |
|---|
| 82 | REAL(wp) :: fnsi |
|---|
| 83 | |
|---|
| 84 | REAL(wp) :: fsin1, fnsi1, fnsi2 |
|---|
| 85 | REAL(wp) :: fq0 |
|---|
| 86 | INTEGER(KIND=jpim), PARAMETER :: zhook_in = 0 |
|---|
| 87 | INTEGER(KIND=jpim), PARAMETER :: zhook_out = 1 |
|---|
| 88 | REAL(KIND=jprb) :: zhook_handle |
|---|
| 89 | |
|---|
| 90 | CHARACTER(LEN=*), PARAMETER :: RoutineName='PHYTOPLANKTON' |
|---|
| 91 | |
|---|
| 92 | IF (lhook) CALL dr_hook(RoutineName,zhook_in,zhook_handle) |
|---|
| 93 | |
|---|
| 94 | |
|---|
| 95 | DO jj = 2,jpjm1 |
|---|
| 96 | DO ji = 2,jpim1 |
|---|
| 97 | !! OPEN wet point IF..THEN loop |
|---|
| 98 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 99 | !!---------------------------------------------------------- |
|---|
| 100 | !! Chlorophyll calculations |
|---|
| 101 | !!---------------------------------------------------------- |
|---|
| 102 | !! |
|---|
| 103 | !! non-diatoms |
|---|
| 104 | if (zphn(ji,jj).GT.rsmall) then |
|---|
| 105 | fthetan(ji,jj) = max(tiny(zchn(ji,jj)), & |
|---|
| 106 | (zchn(ji,jj) * xxi) / & |
|---|
| 107 | (zphn(ji,jj) + tiny(zphn(ji,jj)))) |
|---|
| 108 | faln(ji,jj) = xaln * fthetan(ji,jj) |
|---|
| 109 | else |
|---|
| 110 | fthetan(ji,jj) = 0. |
|---|
| 111 | faln(ji,jj) = 0. |
|---|
| 112 | endif |
|---|
| 113 | !! |
|---|
| 114 | !! diatoms |
|---|
| 115 | if (zphd(ji,jj).GT.rsmall) then |
|---|
| 116 | fthetad(ji,jj) = max(tiny(zchd(ji,jj)), & |
|---|
| 117 | (zchd(ji,jj) * xxi) / & |
|---|
| 118 | (zphd(ji,jj) + tiny(zphd(ji,jj)))) |
|---|
| 119 | fald(ji,jj) = xald * fthetad(ji,jj) |
|---|
| 120 | else |
|---|
| 121 | fthetad(ji,jj) = 0. |
|---|
| 122 | fald(ji,jj) = 0. |
|---|
| 123 | endif |
|---|
| 124 | |
|---|
| 125 | # if defined key_debug_medusa |
|---|
| 126 | !! report biological calculations |
|---|
| 127 | if (idf.eq.1.AND.idfval.eq.1) then |
|---|
| 128 | IF (lwp) write (numout,*) '------------------------------' |
|---|
| 129 | IF (lwp) write (numout,*) 'faln(',jk,') = ', faln(ji,jj) |
|---|
| 130 | IF (lwp) write (numout,*) 'fald(',jk,') = ', fald(ji,jj) |
|---|
| 131 | endif |
|---|
| 132 | # endif |
|---|
| 133 | ENDIF |
|---|
| 134 | ENDDO |
|---|
| 135 | ENDDO |
|---|
| 136 | |
|---|
| 137 | DO jj = 2,jpjm1 |
|---|
| 138 | DO ji = 2,jpim1 |
|---|
| 139 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 140 | !!---------------------------------------------------------- |
|---|
| 141 | !! Phytoplankton light limitation |
|---|
| 142 | !!---------------------------------------------------------- |
|---|
| 143 | !! |
|---|
| 144 | !! It is assumed xpar is the depth-averaged (vertical layer) PAR |
|---|
| 145 | !! Light limitation (check self-shading) in W/m2 |
|---|
| 146 | !! |
|---|
| 147 | !! Note that there is no temperature dependence in phytoplankton |
|---|
| 148 | !! growth rate or any other function. |
|---|
| 149 | !! In calculation of Chl/Phy ratio tiny(phyto) is introduced to |
|---|
| 150 | !! avoid NaNs in case of Phy==0. |
|---|
| 151 | !! |
|---|
| 152 | !! fthetad and fthetan are Chl:C ratio (gChl/gC) in diat and |
|---|
| 153 | !! non-diat: |
|---|
| 154 | !! for 1:1 Chl:P ratio (mgChl/mmolN) theta=0.012 |
|---|
| 155 | !! |
|---|
| 156 | !! AXY (16/07/09) |
|---|
| 157 | !! temperature for new Eppley style phytoplankton growth |
|---|
| 158 | fun_T(ji,jj) = 1.066**(1.0 * tsn(ji,jj,jk,jp_tem)) |
|---|
| 159 | !! AXY (16/05/11): add in new Q10 (1.5, not 2.0) for |
|---|
| 160 | !! phytoplankton growth; remin. unaffected |
|---|
| 161 | fun_Q10(ji,jj) = jq10**((tsn(ji,jj,jk,jp_tem) - 0.0) / 10.0) |
|---|
| 162 | if (jphy.eq.1) then |
|---|
| 163 | xvpnT = xvpn * fun_T(ji,jj) |
|---|
| 164 | xvpdT = xvpd * fun_T(ji,jj) |
|---|
| 165 | elseif (jphy.eq.2) then |
|---|
| 166 | xvpnT = xvpn * fun_Q10(ji,jj) |
|---|
| 167 | xvpdT = xvpd * fun_Q10(ji,jj) |
|---|
| 168 | else |
|---|
| 169 | xvpnT = xvpn |
|---|
| 170 | xvpdT = xvpd |
|---|
| 171 | endif |
|---|
| 172 | !! |
|---|
| 173 | !! non-diatoms |
|---|
| 174 | fchn1 = (xvpnT * xvpnT) + & |
|---|
| 175 | (faln(ji,jj) * faln(ji,jj) * xpar(ji,jj,jk) * & |
|---|
| 176 | xpar(ji,jj,jk)) |
|---|
| 177 | if (fchn1.GT.rsmall) then |
|---|
| 178 | fchn(ji,jj) = xvpnT / (sqrt(fchn1) + tiny(fchn1)) |
|---|
| 179 | else |
|---|
| 180 | fchn(ji,jj) = 0. |
|---|
| 181 | endif |
|---|
| 182 | !! non-diatom J term |
|---|
| 183 | fjln(ji,jj) = fchn(ji,jj) * faln(ji,jj) * xpar(ji,jj,jk) |
|---|
| 184 | fjlim_pn(ji,jj) = fjln(ji,jj) / xvpnT |
|---|
| 185 | !! |
|---|
| 186 | !! diatoms |
|---|
| 187 | fchd1 = (xvpdT * xvpdT) + & |
|---|
| 188 | (fald(ji,jj) * fald(ji,jj) * xpar(ji,jj,jk) * & |
|---|
| 189 | xpar(ji,jj,jk)) |
|---|
| 190 | if (fchd1.GT.rsmall) then |
|---|
| 191 | fchd(ji,jj) = xvpdT / (sqrt(fchd1) + tiny(fchd1)) |
|---|
| 192 | else |
|---|
| 193 | fchd(ji,jj) = 0. |
|---|
| 194 | endif |
|---|
| 195 | !! diatom J term |
|---|
| 196 | fjld(ji,jj) = fchd(ji,jj) * fald(ji,jj) * xpar(ji,jj,jk) |
|---|
| 197 | fjlim_pd(ji,jj) = fjld(ji,jj) / xvpdT |
|---|
| 198 | |
|---|
| 199 | # if defined key_debug_medusa |
|---|
| 200 | !! report phytoplankton light limitation |
|---|
| 201 | if (idf.eq.1.AND.idfval.eq.1) then |
|---|
| 202 | IF (lwp) write (numout,*) '------------------------------' |
|---|
| 203 | IF (lwp) write (numout,*) 'fchn(',jk,') = ', fchn(ji,jj) |
|---|
| 204 | IF (lwp) write (numout,*) 'fchd(',jk,') = ', fchd(ji,jj) |
|---|
| 205 | IF (lwp) write (numout,*) 'fjln(',jk,') = ', fjln(ji,jj) |
|---|
| 206 | IF (lwp) write (numout,*) 'fjld(',jk,') = ', fjld(ji,jj) |
|---|
| 207 | endif |
|---|
| 208 | # endif |
|---|
| 209 | ENDIF |
|---|
| 210 | ENDDO |
|---|
| 211 | ENDDO |
|---|
| 212 | |
|---|
| 213 | DO jj = 2,jpjm1 |
|---|
| 214 | DO ji = 2,jpim1 |
|---|
| 215 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 216 | !!---------------------------------------------------------- |
|---|
| 217 | !! Phytoplankton nutrient limitation |
|---|
| 218 | !!---------------------------------------------------------- |
|---|
| 219 | !! |
|---|
| 220 | !! non-diatoms (N, Fe). |
|---|
| 221 | !! non-diatom Qn term |
|---|
| 222 | fnln(ji,jj) = zdin(ji,jj) / (zdin(ji,jj) + xnln) |
|---|
| 223 | !! non-diatom Qf term |
|---|
| 224 | ffln2(ji,jj) = zfer(ji,jj) / (zfer(ji,jj) + xfln) |
|---|
| 225 | !! |
|---|
| 226 | !! diatoms (N, Si, Fe). |
|---|
| 227 | !! diatom Qn term |
|---|
| 228 | fnld(ji,jj) = zdin(ji,jj) / (zdin(ji,jj) + xnld) |
|---|
| 229 | !! diatom Qs term |
|---|
| 230 | fsld(ji,jj) = zsil(ji,jj) / (zsil(ji,jj) + xsld) |
|---|
| 231 | !! diatom Qf term |
|---|
| 232 | ffld(ji,jj) = zfer(ji,jj) / (zfer(ji,jj) + xfld) |
|---|
| 233 | |
|---|
| 234 | # if defined key_debug_medusa |
|---|
| 235 | !! report phytoplankton nutrient limitation |
|---|
| 236 | if (idf.eq.1.AND.idfval.eq.1) then |
|---|
| 237 | IF (lwp) write (numout,*) '------------------------------' |
|---|
| 238 | IF (lwp) write (numout,*) 'fnln(',jk,') = ', fnln(ji,jj) |
|---|
| 239 | IF (lwp) write (numout,*) 'fnld(',jk,') = ', fnld(ji,jj) |
|---|
| 240 | IF (lwp) write (numout,*) 'ffln2(',jk,') = ', ffln2(ji,jj) |
|---|
| 241 | IF (lwp) write (numout,*) 'ffld(',jk,') = ', ffld(ji,jj) |
|---|
| 242 | IF (lwp) write (numout,*) 'fsld(',jk,') = ', fsld(ji,jj) |
|---|
| 243 | endif |
|---|
| 244 | # endif |
|---|
| 245 | ENDIF |
|---|
| 246 | ENDDO |
|---|
| 247 | ENDDO |
|---|
| 248 | |
|---|
| 249 | DO jj = 2,jpjm1 |
|---|
| 250 | DO ji = 2,jpim1 |
|---|
| 251 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 252 | !!---------------------------------------------------------- |
|---|
| 253 | !! Primary production (non-diatoms) |
|---|
| 254 | !! (note: still needs multiplying by phytoplankton |
|---|
| 255 | !! concentration) |
|---|
| 256 | !!---------------------------------------------------------- |
|---|
| 257 | !! |
|---|
| 258 | if (jliebig .eq. 0) then |
|---|
| 259 | !! multiplicative nutrient limitation |
|---|
| 260 | fpnlim = fnln(ji,jj) * ffln2(ji,jj) |
|---|
| 261 | elseif (jliebig .eq. 1) then |
|---|
| 262 | !! Liebig Law (= most limiting) nutrient limitation |
|---|
| 263 | fpnlim = min(fnln(ji,jj), ffln2(ji,jj)) |
|---|
| 264 | endif |
|---|
| 265 | fprn(ji,jj) = fjln(ji,jj) * fpnlim |
|---|
| 266 | ENDIF |
|---|
| 267 | ENDDO |
|---|
| 268 | ENDDO |
|---|
| 269 | |
|---|
| 270 | DO jj = 2,jpjm1 |
|---|
| 271 | DO ji = 2,jpim1 |
|---|
| 272 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 273 | !!---------------------------------------------------------- |
|---|
| 274 | !! Primary production (diatoms) |
|---|
| 275 | !! (note: still needs multiplying by phytoplankton |
|---|
| 276 | !! concentration) |
|---|
| 277 | !! |
|---|
| 278 | !! Production here is split between nitrogen production and |
|---|
| 279 | !! that of silicon; depending upon the "intracellular" ratio |
|---|
| 280 | !! of Si:N, model diatoms will uptake nitrogen/silicon |
|---|
| 281 | !! differentially; this borrows from the diatom model of |
|---|
| 282 | !! Mongin et al. (2006) |
|---|
| 283 | !!---------------------------------------------------------- |
|---|
| 284 | !! |
|---|
| 285 | if (jliebig .eq. 0) then |
|---|
| 286 | !! multiplicative nutrient limitation |
|---|
| 287 | fpdlim = fnld(ji,jj) * ffld(ji,jj) |
|---|
| 288 | elseif (jliebig .eq. 1) then |
|---|
| 289 | !! Liebig Law (= most limiting) nutrient limitation |
|---|
| 290 | fpdlim = min(fnld(ji,jj), ffld(ji,jj)) |
|---|
| 291 | endif |
|---|
| 292 | !! |
|---|
| 293 | if (zphd(ji,jj).GT.rsmall .AND. zpds(ji,jj).GT.rsmall) then |
|---|
| 294 | !! "intracellular" elemental ratios |
|---|
| 295 | ! fsin(ji,jj) = zpds(ji,jj) / (zphd(ji,jj) + & |
|---|
| 296 | ! tiny(zphd(ji,jj))) |
|---|
| 297 | ! fnsi = zphd(ji,jj) / (zpds(ji,jj) + & |
|---|
| 298 | ! tiny(zpds(ji,jj))) |
|---|
| 299 | fsin(ji,jj) = 0.0 |
|---|
| 300 | IF( zphd(ji,jj) .GT. rsmall) fsin(ji,jj) = zpds(ji,jj) / & |
|---|
| 301 | zphd(ji,jj) |
|---|
| 302 | fnsi = 0.0 |
|---|
| 303 | IF( zpds(ji,jj) .GT. rsmall) fnsi = zphd(ji,jj) / & |
|---|
| 304 | zpds(ji,jj) |
|---|
| 305 | !! AXY (23/02/10): these next variables derive from |
|---|
| 306 | !! Mongin et al. (2003) |
|---|
| 307 | fsin1 = 3.0 * xsin0 !! = 0.6 |
|---|
| 308 | fnsi1 = 1.0 / fsin1 !! = 1.667 |
|---|
| 309 | fnsi2 = 1.0 / xsin0 !! = 5.0 |
|---|
| 310 | !! |
|---|
| 311 | !! conditionalities based on ratios |
|---|
| 312 | !! nitrogen (and iron and carbon) |
|---|
| 313 | if (fsin(ji,jj).le.xsin0) then |
|---|
| 314 | fprd(ji,jj) = 0.0 |
|---|
| 315 | fsld2(ji,jj) = 0.0 |
|---|
| 316 | elseif (fsin(ji,jj).lt.fsin1) then |
|---|
| 317 | fprd(ji,jj) = xuif * ((fsin(ji,jj) - xsin0) / & |
|---|
| 318 | (fsin(ji,jj) + & |
|---|
| 319 | tiny(fsin(ji,jj)))) * & |
|---|
| 320 | (fjld(ji,jj) * fpdlim) |
|---|
| 321 | fsld2(ji,jj) = xuif * ((fsin(ji,jj) - xsin0) / & |
|---|
| 322 | (fsin(ji,jj) + & |
|---|
| 323 | tiny(fsin(ji,jj)))) |
|---|
| 324 | elseif (fsin(ji,jj).ge.fsin1) then |
|---|
| 325 | fprd(ji,jj) = (fjld(ji,jj) * fpdlim) |
|---|
| 326 | fsld2(ji,jj) = 1.0 |
|---|
| 327 | endif |
|---|
| 328 | !! |
|---|
| 329 | !! silicon |
|---|
| 330 | if (fsin(ji,jj).lt.fnsi1) then |
|---|
| 331 | fprds(ji,jj) = (fjld(ji,jj) * fsld(ji,jj)) |
|---|
| 332 | elseif (fsin(ji,jj).lt.fnsi2) then |
|---|
| 333 | fprds(ji,jj) = xuif * ((fnsi - xnsi0) / & |
|---|
| 334 | (fnsi + tiny(fnsi))) * & |
|---|
| 335 | (fjld(ji,jj) * fsld(ji,jj)) |
|---|
| 336 | else |
|---|
| 337 | fprds(ji,jj) = 0.0 |
|---|
| 338 | endif |
|---|
| 339 | else |
|---|
| 340 | fsin(ji,jj) = 0.0 |
|---|
| 341 | fnsi = 0.0 |
|---|
| 342 | fprd(ji,jj) = 0.0 |
|---|
| 343 | fsld2(ji,jj) = 0.0 |
|---|
| 344 | fprds(ji,jj) = 0.0 |
|---|
| 345 | endif |
|---|
| 346 | |
|---|
| 347 | # if defined key_debug_medusa |
|---|
| 348 | !! report phytoplankton growth (including diatom silicon |
|---|
| 349 | !! submodel) |
|---|
| 350 | if (idf.eq.1.AND.idfval.eq.1) then |
|---|
| 351 | IF (lwp) write (numout,*) '------------------------------' |
|---|
| 352 | IF (lwp) write (numout,*) 'fsin(',jk,') = ', fsin(ji,jj) |
|---|
| 353 | IF (lwp) write (numout,*) 'fnsi(',jk,') = ', fnsi |
|---|
| 354 | IF (lwp) write (numout,*) 'fsld2(',jk,') = ', fsld2(ji,jj) |
|---|
| 355 | IF (lwp) write (numout,*) 'fprn(',jk,') = ', fprn(ji,jj) |
|---|
| 356 | IF (lwp) write (numout,*) 'fprd(',jk,') = ', fprd(ji,jj) |
|---|
| 357 | IF (lwp) write (numout,*) 'fprds(',jk,') = ', fprds(ji,jj) |
|---|
| 358 | endif |
|---|
| 359 | # endif |
|---|
| 360 | ENDIF |
|---|
| 361 | ENDDO |
|---|
| 362 | ENDDO |
|---|
| 363 | |
|---|
| 364 | DO jj = 2,jpjm1 |
|---|
| 365 | DO ji = 2,jpim1 |
|---|
| 366 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 367 | !!---------------------------------------------------------- |
|---|
| 368 | !! Mixed layer primary production |
|---|
| 369 | !! this block calculates the amount of primary production |
|---|
| 370 | !! that occurs within the upper mixed layer; this allows the |
|---|
| 371 | !! separate diagnosis of "sub-surface" primary production; it |
|---|
| 372 | !! does assume that short-term variability in mixed layer |
|---|
| 373 | !! depth doesn't mess with things though |
|---|
| 374 | !!---------------------------------------------------------- |
|---|
| 375 | !! |
|---|
| 376 | if (fdep1(ji,jj).le.hmld(ji,jj)) then |
|---|
| 377 | !! this level is entirely in the mixed layer |
|---|
| 378 | fq0 = 1.0 |
|---|
| 379 | elseif (fsdepw(ji,jj,jk).ge.hmld(ji,jj)) then |
|---|
| 380 | !! this level is entirely below the mixed layer |
|---|
| 381 | fq0 = 0.0 |
|---|
| 382 | else |
|---|
| 383 | !! this level straddles the mixed layer |
|---|
| 384 | fq0 = (hmld(ji,jj) - fsdepw(ji,jj,jk)) / fse3t(ji,jj,jk) |
|---|
| 385 | endif |
|---|
| 386 | !! |
|---|
| 387 | fprn_ml(ji,jj) = fprn_ml(ji,jj) + (fprn(ji,jj) * zphn(ji,jj) * & |
|---|
| 388 | fse3t(ji,jj,jk) * fq0) |
|---|
| 389 | fprd_ml(ji,jj) = fprd_ml(ji,jj) + (fprd(ji,jj) * zphd(ji,jj) * & |
|---|
| 390 | fse3t(ji,jj,jk) * fq0) |
|---|
| 391 | !! AXY (16/08/17) |
|---|
| 392 | fchl_ml(ji,jj) = fchl_ml(ji,jj) + ((zchn(ji,jj) + zchd(ji,jj)) * & |
|---|
| 393 | (fse3t(ji,jj,jk) * fq0) / hmld(ji,jj)) |
|---|
| 394 | ENDIF |
|---|
| 395 | ENDDO |
|---|
| 396 | ENDDO |
|---|
| 397 | CALL lbc_lnk(fchl_ml(:,:),'T',1. ) |
|---|
| 398 | |
|---|
| 399 | DO jj = 2,jpjm1 |
|---|
| 400 | DO ji = 2,jpim1 |
|---|
| 401 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 402 | !!---------------------------------------------------------- |
|---|
| 403 | !! Vertical Integral -- |
|---|
| 404 | !!---------------------------------------------------------- |
|---|
| 405 | !! vertical integral non-diatom phytoplankton |
|---|
| 406 | ftot_pn(ji,jj) = ftot_pn(ji,jj) + (zphn(ji,jj) * & |
|---|
| 407 | fse3t(ji,jj,jk)) |
|---|
| 408 | !! vertical integral diatom phytoplankton |
|---|
| 409 | ftot_pd(ji,jj) = ftot_pd(ji,jj) + (zphd(ji,jj) * & |
|---|
| 410 | fse3t(ji,jj,jk)) |
|---|
| 411 | !! vertical integral microzooplankton |
|---|
| 412 | ftot_zmi(ji,jj) = ftot_zmi(ji,jj) + (zzmi(ji,jj) * & |
|---|
| 413 | fse3t(ji,jj,jk)) |
|---|
| 414 | !! vertical integral mesozooplankton |
|---|
| 415 | ftot_zme(ji,jj) = ftot_zme(ji,jj) + (zzme(ji,jj) * & |
|---|
| 416 | fse3t(ji,jj,jk)) |
|---|
| 417 | !! vertical integral slow detritus, nitrogen |
|---|
| 418 | ftot_det(ji,jj) = ftot_det(ji,jj) + (zdet(ji,jj) * & |
|---|
| 419 | fse3t(ji,jj,jk)) |
|---|
| 420 | !! vertical integral slow detritus, carbon |
|---|
| 421 | ftot_dtc(ji,jj) = ftot_dtc(ji,jj) + (zdtc(ji,jj) * & |
|---|
| 422 | fse3t(ji,jj,jk)) |
|---|
| 423 | ENDIF |
|---|
| 424 | ENDDO |
|---|
| 425 | ENDDO |
|---|
| 426 | |
|---|
| 427 | DO jj = 2,jpjm1 |
|---|
| 428 | DO ji = 2,jpim1 |
|---|
| 429 | if (tmask(ji,jj,jk) == 1) then |
|---|
| 430 | !!---------------------------------------------------------- |
|---|
| 431 | !! More chlorophyll calculations |
|---|
| 432 | !!---------------------------------------------------------- |
|---|
| 433 | !! |
|---|
| 434 | !! frn(ji,jj) = (xthetam / fthetan(ji,jj)) * & |
|---|
| 435 | !! (fprn(ji,jj) / (fthetan(ji,jj) * xpar(ji,jj,jk))) |
|---|
| 436 | !! frd(ji,jj) = (xthetam / fthetad(ji,jj)) * & |
|---|
| 437 | !! (fprd(ji,jj) / (fthetad(ji,jj) * xpar(ji,jj,jk))) |
|---|
| 438 | frn(ji,jj) = (xthetam * fchn(ji,jj) * fnln(ji,jj) * & |
|---|
| 439 | ffln2(ji,jj)) / (fthetan(ji,jj) + & |
|---|
| 440 | tiny(fthetan(ji,jj))) |
|---|
| 441 | !! AXY (12/05/09): there's potentially a problem here; fsld, |
|---|
| 442 | !! silicic acid limitation, is used in the following line |
|---|
| 443 | !! to regulate chlorophyll growth in a manner that is |
|---|
| 444 | !! inconsistent with its use in the regulation of biomass |
|---|
| 445 | !! growth; the Mongin term term used in growth is more |
|---|
| 446 | !! complex than the simple multiplicative function used |
|---|
| 447 | !! below |
|---|
| 448 | !! frd(ji,jj) = (xthetam * fchd(ji,jj) * fnld(ji,jj) * & |
|---|
| 449 | !! ffld(ji,jj) * fsld(ji,jj)) / & |
|---|
| 450 | !! (fthetad(ji,jj) + tiny(fthetad(ji,jj))) |
|---|
| 451 | !! AXY (12/05/09): this replacement line uses the new |
|---|
| 452 | !! variable, fsld2, to regulate chlorophyll growth |
|---|
| 453 | frd(ji,jj) = (xthetamd * fchd(ji,jj) * fnld(ji,jj) * & |
|---|
| 454 | ffld(ji,jj) * fsld2(ji,jj)) / & |
|---|
| 455 | (fthetad(ji,jj) + tiny(fthetad(ji,jj))) |
|---|
| 456 | |
|---|
| 457 | # if defined key_debug_medusa |
|---|
| 458 | !! report chlorophyll calculations |
|---|
| 459 | if (idf.eq.1.AND.idfval.eq.1) then |
|---|
| 460 | IF (lwp) write (numout,*) '------------------------------' |
|---|
| 461 | IF (lwp) write (numout,*) 'fthetan(',jk,') = ', fthetan(ji,jj) |
|---|
| 462 | IF (lwp) write (numout,*) 'fthetad(',jk,') = ', fthetad(ji,jj) |
|---|
| 463 | IF (lwp) write (numout,*) 'frn(',jk,') = ', frn(ji,jj) |
|---|
| 464 | IF (lwp) write (numout,*) 'frd(',jk,') = ', frd(ji,jj) |
|---|
| 465 | endif |
|---|
| 466 | # endif |
|---|
| 467 | |
|---|
| 468 | ENDIF |
|---|
| 469 | ENDDO |
|---|
| 470 | ENDDO |
|---|
| 471 | |
|---|
| 472 | IF (lhook) CALL dr_hook(RoutineName,zhook_out,zhook_handle) |
|---|
| 473 | END SUBROUTINE phytoplankton |
|---|
| 474 | |
|---|
| 475 | #else |
|---|
| 476 | !!====================================================================== |
|---|
| 477 | !! Dummy module : No MEDUSA bio-model |
|---|
| 478 | !!====================================================================== |
|---|
| 479 | CONTAINS |
|---|
| 480 | SUBROUTINE phytoplankton( ) ! Empty routine |
|---|
| 481 | INTEGER(KIND=jpim), PARAMETER :: zhook_in = 0 |
|---|
| 482 | INTEGER(KIND=jpim), PARAMETER :: zhook_out = 1 |
|---|
| 483 | REAL(KIND=jprb) :: zhook_handle |
|---|
| 484 | |
|---|
| 485 | CHARACTER(LEN=*), PARAMETER :: RoutineName='PHYTOPLANKTON' |
|---|
| 486 | |
|---|
| 487 | IF (lhook) CALL dr_hook(RoutineName,zhook_in,zhook_handle) |
|---|
| 488 | |
|---|
| 489 | WRITE(*,*) 'phytoplankton: You should not have seen this print! error?' |
|---|
| 490 | IF (lhook) CALL dr_hook(RoutineName,zhook_out,zhook_handle) |
|---|
| 491 | END SUBROUTINE phytoplankton |
|---|
| 492 | #endif |
|---|
| 493 | |
|---|
| 494 | !!====================================================================== |
|---|
| 495 | END MODULE phytoplankton_mod |
|---|
