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jahn |
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C $Header$ |
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C $Name$ |
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#include "CPP_OPTIONS.h" |
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#include "PTRACERS_OPTIONS.h" |
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#include "DARWIN_OPTIONS.h" |
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#ifdef ALLOW_PTRACERS |
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#ifdef ALLOW_DARWIN |
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#ifdef GEIDER |
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#ifndef DYNCHL |
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c |
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c ==================================================================== |
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c SUBROUTINE GEIDER97 |
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c ==================================================================== |
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c |
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SUBROUTINE GEIDER97( |
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I PARlocal, |
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I nutrient, |
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I phytotempfunction, |
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O pcarbon, ! photosynthetic carbon uptake, or... |
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O Chl2C, |
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I myThid) |
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IMPLICIT NONE |
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#ifdef ALLOW_QUOTA |
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#include "QUOTA_SIZE.h" |
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#include "QUOTA.h" |
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#else |
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#include "MONOD_SIZE.h" |
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#include "MONOD.h" |
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#endif |
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c |
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INTEGER myThid |
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INTEGER ii,jp |
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c |
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_RL PARlocal |
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_RL phytotempfunction(npmax) |
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_RL nutrient(iimax) |
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c |
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_RL pcarbon(npmax) |
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_RL Chl2C(npmax) |
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c |
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_RL E0 |
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c |
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_RL PCmax |
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_RL PCPhot(npmax) |
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c |
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_RL pday |
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pday = 86400. _d 0 |
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c |
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c Geider, MacIntyre and Kana - photosynthesis models |
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c GMK98 for Dynamic Quota |
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c convert units to match GMK98 |
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c |
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c Variables... |
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c W/m^2 --> µmol photons/m^2/s |
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E0 = PARlocal * 5. _d 0 |
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c |
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print*,"PARlocal = ",PARlocal |
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print*,"E0 = ",E0 |
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c |
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do jp=1,npmax |
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c |
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if (pcref(jp).gt.0. _d 0) then |
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PCmax = pcref(jp) |
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& * nutrient(iNO3) |
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& / (nutrient(iNO3)+kn(iNO3,jp)) |
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& * phytotempfunction(jp) |
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else |
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PCmax = 0. _d 0 |
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endif |
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c |
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if (PCmax.gt.0. _d 0) then |
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c |
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Chl2C(jp) = Chl2Cmax(jp) |
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& / (1 + Chl2Cmax(jp)*alphachl(jp)*E0/(2*PCmax)) |
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c |
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Chl2C(jp)=min(Chl2C(jp),chl2cmax(jp)) |
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Chl2C(jp)=max(Chl2C(jp),chl2cmin(jp)) |
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c |
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if (E0.gt.5. _d -1) then |
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PCPhot(jp) = PCmax |
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& * (1-exp(-alphachl(jp)*Chl2C(jp)*E0/PCmax)) |
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c |
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if (pcarbon(jp).lt. 0. _d 0) |
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& print*,'QQ ERROR pc=',jp,pcarbon(jp) |
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else |
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PCPhot=0. _d 0 |
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endif |
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c |
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print*,"PCmax = ",PCmax |
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print*,"PCref = ",PCref(jp) |
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print*,"nitrogen = ",nutrient(iNO3) |
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print*,"kn = ",kn(iNO3,jp) |
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print*,"phyto T func = ",phytotempfunction(jp) |
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print*,"Chl2C = ",Chl2C(jp) |
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print*,"PCPhot = ",PCPhot(jp) |
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print*," " |
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else |
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PCPhot(jp) = 0. _d 0 |
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Chl2C(jp) = chl2cmin(jp) |
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endif |
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c -------------------------------------------------------------------- |
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c convert units for output back to ecomodel |
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c d-1 --> s^-1 |
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pcarbon(jp) = PCPhot(jp) / pday |
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c gChl/gC --> mgChl/mmolC |
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Chl2C(jp) = Chl2C(jp) * 12. _d 0 |
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enddo |
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RETURN |
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END |
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#endif /*not DYNCHL*/ |
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#endif /*GEIDER*/ |
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#endif /*ALLOW_DARWIN*/ |
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#endif /*ALLOW_PTRACERS*/ |
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c ================================================================== |
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