//---------------------------------------------------------------------------------------------------------
public void CalcPRate25(LeafCanopy canopy, SunlitShadedCanopy sunlit, PhotosynthesisModel PM)
{
for (int i = 0; i < _nLayers; i++)
{
VpMax25[i] = canopy.VpMax25[i] - sunlit.VpMax25[i];
}
}
//--------------------------------------------------------------
public double calcAj(LeafCanopy canopy, SunlitShadedCanopy s, int layer)
{
double x1 = (1 - canopy.CPath.x) * s.J[layer] / 3.0;
double x2 = 7.0 / 3.0 * s.g_[layer];
double x3 = 0;
double x4 = 0;
double x5 = canopy.CPath.x * s.J[layer] / 2.0;
double a, b, c, d;
double Ci = canopy.CPath.CiCaRatio * canopy.Ca;
double g_m = s.gm_CO2T[layer];
double g_bs = s.gbs[layer];
double α = canopy.alpha;
double R_d = s.RdT[layer];
double γ_ = s.g_[layer];
double O_m = s.Om[layer];
double R_m = s.Rm[layer];
a = -Ci * 0.047 * g_m * g_bs - Ci * 0.047 * g_m * x4 - α * g_m * R_d * x2 - α * g_m * γ_ * x1 - O_m * 0.047 * g_m * g_bs * x2 - 0.047 * g_m * g_bs * x3 +
0.047 * g_m * R_m + 0.047 * g_m * R_d - 0.047 * g_m * x1 - 0.047 * g_m * x5 + 0.047 * g_bs * R_d -
0.047 * g_bs * x1 + 0.047 * R_d * x4 - 0.047 * x1 * x4; // Eq (A56)
b = (-α * g_m * x2 + 0.047 * g_m + 0.047 * g_bs + 0.047 * x4) *
(-Ci * 0.047 * g_m * g_bs * R_d + Ci * 0.047 * g_m * g_bs * x1 - Ci * 0.047 * g_m * R_d * x4 + Ci * 0.047 * g_m * x1 * x4 -
O_m * 0.047 * g_m * g_bs * R_d * x2 - 0.047 * g_m * g_bs * R_d * x3 - O_m * 0.047 * g_m * g_bs * γ_ * x1 +
0.047 * g_m * R_m - 0.047 * g_m * R_m * x1 - 0.047 * g_m * R_d * x5 + 0.047 * g_m * x1 * x5); // Eq (A57)
c = Ci * 0.047 * g_m * g_bs + Ci * 0.047 * g_m * x4 + α * g_m * R_d * x2 + α * g_m * γ_ * x1 + O_m * 0.047 * g_m * g_bs * x2 +
0.047 * g_m * g_bs * x3 - 0.047 * g_m * R_m - 0.047 * g_m * R_d + 0.047 * g_m * x1 + 0.047 * g_m * x5 - 0.047 * g_bs * R_d +
0.047 * g_bs * x1 - 0.047 * R_d * x4 + 0.047 * x1 * x4; // Eq(A58)
d = -α * g_m * x2 + 0.047 * g_m + 0.047 * g_bs + 0.047 * x4; // Eq (A59)
return((-1 * Math.Pow((Math.Pow(a, 2) - 4 * b), 0.5) + c) / (2 * d)); //Eq (A55)
}
//---------------------------------------------------------------------------------------------------------
public void calcElectronTransportRate25(LeafCanopy canopy, SunlitShadedCanopy sunlit, PhotosynthesisModel PM)
{
for (int i = 0; i < _nLayers; i++)
{
JMax25[i] = canopy.JMax25[i] - sunlit.JMax25[i];
}
}
//---------------------------------------------------------------------------------------------------------
public override void calcMaxRates(LeafCanopy canopy, SunlitShadedCanopy counterpart, PhotosynthesisModel PM)
{
calcRubiscoActivity25(canopy, counterpart, PM);
calcElectronTransportRate25(canopy, counterpart, PM);
calcRdActivity25(canopy, counterpart, PM);
calcPRate25(canopy, counterpart, PM);
}
//---------------------------------------------------------------------------------------------------------
public double calcLeafTemperature(PhotosynthesisModel PM, int layer, double _leafTemp)
{
EnvironmentModel EM = PM.envModel;
LeafCanopy canopy = PM.canopy;
double airTemp = EM.getTemp(PM.time);
s[layer] = (es[layer] - canopy.es_Ta) / (leafTemp[layer] - EM.maxT);
gs[layer] = gs_CO2[layer] / canopy.ra;
rs_H2O[layer] = (1 / gs[layer] - 1.3 * canopy.rb_H_LAIs[layer] - canopy.rts[layer]) / 1.6;
Sn[layer] = canopy.energyConvRatio * absorbedIrradiance[layer];
R_[layer] = canopy.Bz * Math.Pow((leafTemp[layer] + 273), 4) * canopy.fvap * canopy.fclear * LAIS[layer] / canopy.LAIs.Sum();
Rn[layer] = Sn[layer] - R_[layer];
lE[layer] = (s[layer] * Rn[layer] + canopy.airDensity * canopy.cp * VPD[layer] / (canopy.rb_H_LAIs[layer] + canopy.rts[layer])) /
(s[layer] + canopy.g * ((canopy.rb_H2O_LAIs[layer] + canopy.rts[layer] + rs_H2O[layer]) / (canopy.rb_H_LAIs[layer] + canopy.rts[layer])));
double calcLeafTemp = airTemp + (canopy.rb_H_LAIs[layer] + canopy.rts[layer]) * (Rn[layer] - lE[layer]) / (canopy.airDensity * canopy.cp);
//return Math.Pow(1 - _leafTemp / calcLeafTemp, 2);
return(Math.Pow(_leafTemp - calcLeafTemp, 2));
}
//----------------------------------------------------------------------
public override void calcAbsorbedRadiation(EnvironmentModel EM, LeafCanopy canopy, SunlitShadedCanopy sunlit)
{
for (int i = 0; i < _nLayers; i++)
{
absorbedIrradiance[i] = canopy.absorbedRadiation[i] - sunlit.absorbedIrradiance[i];
}
}
//----------------------------------------------------------------------
public void calcRubiscoActivity25(LeafCanopy canopy, SunlitShadedCanopy sunlit, PhotosynthesisModel PM)
{
for (int i = 0; i < _nLayers; i++)
{
VcMax25[i] = canopy.VcMax25[i] - sunlit.VcMax25[i];
}
}
//----------------------------------------------------------------------
public void CalcRdActivity25(LeafCanopy canopy, SunlitShadedCanopy sunlit, PhotosynthesisModel PM)
{
for (int i = 0; i < _nLayers; i++)
{
Rd25[i] = canopy.Rd25[i] - sunlit.Rd25[i];
}
}
//----------------------------------------------------------------------
public override void CalcIncidentRadiation(EnvironmentModel EM, LeafCanopy canopy, SunlitShadedCanopy sunlit)
{
for (int i = 0; i < _nLayers; i++)
{
IncidentIrradiance[i] = EM.DiffuseRadiationPAR * canopy.PropnInterceptedRadns[i] / (sunlit.LAIS[i] + LAIS[i]) *
LAIS[i] + 0.15 * (sunlit.IncidentIrradiance[i] * sunlit.LAIS[i]) / (LAIS[i] + (i < (_nLayers - 1) ? LAIS[i + 1] : 0)) * LAIS[i]; //+ *((E70*E44)/(E45+F45)
}
}
//---------------------------------------------------------------------------------------------------------
public override void calcIncidentRadiation(EnvironmentModel EM, LeafCanopy canopy, SunlitShadedCanopy shaded)
{
for (int i = 0; i < _nLayers; i++)
{
incidentIrradiance[i] = EM.directRadiationPAR * canopy.propnInterceptedRadns[i] / LAIS[i] * LAIS[i] +
EM.diffuseRadiationPAR * canopy.propnInterceptedRadns[i] / (LAIS[i] + shaded.LAIS[i]) * LAIS[i];
}
}
//--------------------------------------------------------------
public double calcAc(LeafCanopy canopy, SunlitShadedCanopy s, int layer, double cm_, bool assimilation, bool AC1)
{
double x1 = s.VcMaxT[layer];
double x2 = s.Kc[layer] / s.Ko[layer];
double x3 = s.Kc[layer];
double x4, x5;
if (AC1)
{
x4 = s.VpMaxT[layer] / (cm_ + s.Kp[layer]); //Delta Eq (A56)
x5 = 0;
}
else
{
x4 = 0;
x5 = s.Vpr[layer];
}
double a, b, c, d;
double Ci = canopy.CPath.CiCaRatio * canopy.Ca;
double g_m = s.gm_CO2T[layer];
double g_bs = s.gbs[layer];
double α = canopy.alpha;
double R_d = s.RdT[layer];
double γ_ = s.g_[layer];
double O_m = s.Om[layer];
double R_m = s.Rm[layer];
double value;
a = -Ci * 0.047 * g_m * g_bs - Ci * 0.047 * g_m * x4 - α * g_m * R_d * x2 - α * g_m * γ_ * x1 - O_m * 0.047 * g_m * g_bs * x2 - 0.047 * g_m * g_bs * x3 +
0.047 * g_m * R_m + 0.047 * g_m * R_d - 0.047 * g_m * x1 - 0.047 * g_m * x5 + 0.047 * g_bs * R_d -
0.047 * g_bs * x1 + 0.047 * R_d * x4 - 0.047 * x1 * x4; // Eq (A56)
b = (-α * g_m * x2 + 0.047 * g_m + 0.047 * g_bs + 0.047 * x4) *
(-Ci * 0.047 * g_m * g_bs * R_d + Ci * 0.047 * g_m * g_bs * x1 - Ci * 0.047 * g_m * R_d * x4 + Ci * 0.047 * g_m * x1 * x4 -
O_m * 0.047 * g_m * g_bs * R_d * x2 - 0.047 * g_m * g_bs * R_d * x3 - O_m * 0.047 * g_m * g_bs * γ_ * x1 +
0.047 * g_m * R_m - 0.047 * g_m * R_m * x1 - 0.047 * g_m * R_d * x5 + 0.047 * g_m * x1 * x5); // Eq (A57)
c = Ci * 0.047 * g_m * g_bs + Ci * 0.047 * g_m * x4 + α * g_m * R_d * x2 + α * g_m * γ_ * x1 + O_m * 0.047 * g_m * g_bs * x2 +
0.047 * g_m * g_bs * x3 - 0.047 * g_m * R_m - 0.047 * g_m * R_d + 0.047 * g_m * x1 + 0.047 * g_m * x5 - 0.047 * g_bs * R_d +
0.047 * g_bs * x1 - 0.047 * R_d * x4 + 0.047 * x1 * x4; // Eq(A58)
d = -α * g_m * x2 + 0.047 * g_m + 0.047 * g_bs + 0.047 * x4; // Eq (A59)
double ass = (-1 * Math.Pow((Math.Pow(a, 2) - 4 * b), 0.5) + c) / (2 * d); //Eq (A55)
if (assimilation)
{
value = ass;
}
else
{
value = Ci - ass / g_m; //Eq 43
}
return(value);
}
//---------------------------------------------------------------------------------------------------------
void calcAbsorbedRadiationDirect(EnvironmentModel EM, LeafCanopy canopy)
{
for (int i = 0; i < _nLayers; i++)
{
absorbedRadiationDirect[i] = (1 - canopy.leafScatteringCoeffs[i]) * EM.directRadiationPAR *
((i == 0 ? 1 : Math.Exp(-canopy.beamExtCoeffs[i] * canopy.LAIAccums[i - 1])) -
Math.Exp(-canopy.beamExtCoeffs[i] * canopy.LAIAccums[i]));
}
}
//---------------------------------------------------------------------------------------------------------
public override void CalcLAI(LeafCanopy canopy, SunlitShadedCanopy sunlit)
{
LAIS = new double[canopy.NLayers];
for (int i = 0; i < canopy.NLayers; i++)
{
LAIS[i] = canopy.LAIs[i] - sunlit.LAIS[i];
}
}
//---------------------------------------------------------------------------------------------------------
public override void calcLAI(LeafCanopy canopy, SunlitShadedCanopy counterpart)
{
LAIS = new double[canopy.nLayers];
for (int i = 0; i < canopy.nLayers; i++)
{
LAIS[i] = ((i == 0 ? 1 : Math.Exp(-canopy.beamExtCoeffs[i] * canopy.LAIAccums[i - 1])) -
Math.Exp(-canopy.beamExtCoeffs[i] * canopy.LAIAccums[i])) * 1 / canopy.beamExtCoeffs[i];
}
}
//--------------------------------------------------------------
public override double calcAj(double Cc, LeafCanopy canopy, SunlitShadedCanopy s, int layer)
{
if (Cc == 0)
{
return(0);
}
return((1 - s.r_aj[layer] / Cc) * (1 - canopy.x) *
s.J[layer] / (3 * (1 + 7 * s.r_[layer] / (3 * Cc))) -
s.RdT[layer]);
}
//---------------------------------------------------------------------------------------------------------
public override void CalcConductanceResistance(PhotosynthesisModel PM, LeafCanopy canopy)
{
for (int i = 0; i < canopy.NLayers; i++)
{
Gbh[i] = 0.01 * Math.Pow((canopy.Us[i] / canopy.LeafWidth), 0.5) *
(1 - Math.Exp(-1 * (0.5 * canopy.Ku + canopy.Kb) * canopy.LAI)) / (0.5 * canopy.Ku + canopy.Kb);
}
base.CalcConductanceResistance(PM, canopy);
}
//----------------------------------------------------------------------
public void CalcRdActivity25(LeafCanopy canopy, SunlitShadedCanopy shaded, PhotosynthesisModel PM)
{
for (int i = 0; i < _nLayers; i++)
{
Rd25[i] = canopy.LAI * canopy.CPath.PsiRd * (canopy.LeafNTopCanopy - canopy.CPath.StructuralN) *
((i == 0 ? 1 : Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i - 1])) -
Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i])) /
(canopy.NAllocationCoeff + canopy.BeamExtCoeffs[i] * canopy.LAI);
}
}
//---------------------------------------------------------------------------------------------------------
public void calcPRate25(LeafCanopy canopy, SunlitShadedCanopy shaded, PhotosynthesisModel PM)
{
for (int i = 0; i < _nLayers; i++)
{
VpMax25[i] = canopy.LAI * canopy.CPath.psiVp * (canopy.leafNTopCanopy - canopy.CPath.structuralN) *
((i == 0 ? 1 : Math.Exp(-(canopy.beamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i - 1])) -
Math.Exp(-(canopy.beamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i])) /
(canopy.NAllocationCoeff + canopy.beamExtCoeffs[i] * canopy.LAI);
}
}
//---------------------------------------------------------------------------------------------------------
void calcAbsorbedRadiationDiffuse(EnvironmentModel EM, LeafCanopy canopy)
{
for (int i = 0; i < _nLayers; i++)
{
absorbedRadiationDiffuse[i] = (1 - canopy.diffuseReflectionCoeffs[i]) * EM.diffuseRadiationPAR *
((i == 0 ? 1 : Math.Exp(-(canopy.diffuseScatteredDiffuses[i] + canopy.beamExtCoeffs[i]) * canopy.LAIAccums[i - 1])) -
Math.Exp(-(canopy.diffuseScatteredDiffuses[i] + canopy.beamExtCoeffs[i]) * canopy.LAIAccums[i])) * (canopy.diffuseScatteredDiffuses[i] /
(canopy.diffuseScatteredDiffuses[i] + canopy.beamExtCoeffs[i]));
}
}
//---------------------------------------------------------------------------------------------------------
public override void calcAbsorbedRadiation(EnvironmentModel EM, LeafCanopy canopy, SunlitShadedCanopy shaded)
{
calcAbsorbedRadiationDirect(EM, canopy);
calcAbsorbedRadiationDiffuse(EM, canopy);
calcAbsorbedRadiationScattered(EM, canopy);
for (int i = 0; i < _nLayers; i++)
{
absorbedIrradiance[i] = absorbedRadiationDirect[i] + absorbedRadiationDiffuse[i] + absorbedRadiationScattered[i];
}
}
//---------------------------------------------------------------------------------------------------------
public void calcPhotosynthesis(PhotosynthesisModel PM, int layer)
{
LeafCanopy canopy = PM.canopy;
leafTemp[layer] = PM.envModel.getTemp(PM.time);
double vpd = PM.envModel.getVPD(PM.time);
canopy.CPath.CiCaRatio = canopy.CPath.CiCaRatioSlope * vpd + canopy.CPath.CiCaRatioIntercept;
VcMaxT[layer] = TempFunctionExp.val(leafTemp[layer], VcMax25[layer], canopy.CPath.VcMax_c, canopy.CPath.VcMax_b);
RdT[layer] = TempFunctionExp.val(leafTemp[layer], Rd25[layer], canopy.CPath.Rd_c, canopy.CPath.Rd_b);
JMaxT[layer] = TempFunction.val(leafTemp[layer], JMax25[layer], canopy.CPath.JMax_TOpt, canopy.CPath.JMax_Omega);
VpMaxT[layer] = TempFunctionExp.val(leafTemp[layer], VpMax25[layer], canopy.CPath.VpMax_c, canopy.CPath.VpMax_b);
Vpr[layer] = canopy.Vpr_l * LAIS[layer];
//TODO: I2 = canopy.ja * absorbedIrradiance[layer]
canopy.ja = (1 - canopy.f) / 2;
J[layer] = (canopy.ja * absorbedIrradiance[layer] + JMaxT[layer] - Math.Pow(Math.Pow(canopy.ja * absorbedIrradiance[layer] + JMaxT[layer], 2) -
4 * canopy.θ * JMaxT[layer] * canopy.ja * absorbedIrradiance[layer], 0.5)) / (2 * canopy.θ);
Kc[layer] = TempFunctionExp.val(leafTemp[layer], canopy.CPath.Kc_P25, canopy.CPath.Kc_c, canopy.CPath.Kc_b);
Ko[layer] = TempFunctionExp.val(leafTemp[layer], canopy.CPath.Ko_P25, canopy.CPath.Ko_c, canopy.CPath.Ko_b);
VcVo[layer] = TempFunctionExp.val(leafTemp[layer], canopy.CPath.VcMax_VoMax_P25, canopy.CPath.VcMax_VoMax_c, canopy.CPath.VcMax_VoMax_b);
ScO[layer] = Ko[layer] / Kc[layer] * VcVo[layer];
g_[layer] = 0.5 / ScO[layer];
canopy.Sco = ScO[layer]; //For reporting ???
K_[layer] = Kc[layer] * (1 + canopy.oxygenPartialPressure / Ko[layer]);
es[layer] = 5.637E-7 * Math.Pow(leafTemp[layer], 4) + 1.728E-5 * Math.Pow(leafTemp[layer], 3) + 1.534E-3 *
Math.Pow(leafTemp[layer], 2) + 4.424E-2 * leafTemp[layer] + 6.095E-1;
canopy.airDensity = 1.295 * Math.Exp(-3.6E-3 * PM.envModel.getTemp(PM.time));
canopy.ra = canopy.airDensity * 1000.0 / 28.966;
VPD[layer] = PM.envModel.getVPD(PM.time);
fVPD[layer] = canopy.a / (1 + VPD[layer] / canopy.Do);
gs[layer] = fVPD[layer];
gm_CO2T[layer] = LAIS[layer] * TempFunction.val(leafTemp[layer], canopy.CPath.gm_P25, canopy.CPath.gm_TOpt, canopy.CPath.gm_Omega);
gb_CO2[layer] = 1 / canopy.rb_CO2s[layer] * LAIS[layer] * canopy.ra;
}
//---------------------------------------------------------------------------------------------------------
public override void CalcAbsorbedRadiation(EnvironmentModel EM, LeafCanopy canopy, SunlitShadedCanopy shaded)
{
CalcAbsorbedRadiationDirect(EM, canopy);
CalcAbsorbedRadiationDiffuse(EM, canopy);
CalcAbsorbedRadiationScattered(EM, canopy);
for (int i = 0; i < _nLayers; i++)
{
AbsorbedIrradiance[i] = AbsorbedRadiationDirect[i] + AbsorbedRadiationDiffuse[i] + AbsorbedRadiationScattered[i];
AbsorbedIrradiancePAR[i] = AbsorbedRadiationDirectPAR[i] + AbsorbedRadiationDiffusePAR[i] + AbsorbedRadiationScatteredPAR[i];
AbsorbedIrradianceNIR[i] = AbsorbedRadiationDirectNIR[i] + AbsorbedRadiationDiffuseNIR[i] + AbsorbedRadiationScatteredNIR[i];
}
}
//---------------------------------------------------------------------------------------------------------
void CalcAbsorbedRadiationScattered(EnvironmentModel EM, LeafCanopy canopy)
{
for (int i = 0; i < _nLayers; i++)
{
if (canopy.BeamScatteredBeams[i] + canopy.BeamExtCoeffs[i] == 0)
{
AbsorbedRadiationScattered[i] = 0;
}
else
{
AbsorbedRadiationScattered[i] = EM.DirectRadiationPAR * (((1 - canopy.BeamReflectionCoeffs[i]) *
((i == 0 ? 1 : Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.BeamScatteredBeams[i]) * canopy.LAIAccums[i - 1])) -
Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.BeamScatteredBeams[i]) * canopy.LAIAccums[i])) *
(canopy.BeamScatteredBeams[i] / (canopy.BeamScatteredBeams[i] + canopy.BeamExtCoeffs[i]))) -
((1 - canopy.LeafScatteringCoeffs[i]) *
((i == 0 ? 1 : Math.Exp(-2 * canopy.BeamExtCoeffs[i] * canopy.LAIAccums[i - 1])) -
Math.Exp(-2 * canopy.BeamExtCoeffs[i] * canopy.LAIAccums[i])) / 2));
}
if (canopy.BeamScatteredBeams[i] + canopy.BeamExtCoeffs[i] == 0)
{
AbsorbedRadiationScattered[i] = 0;
}
else
{
AbsorbedRadiationScatteredPAR[i] = canopy.DirectPAR * (((1 - canopy.BeamReflectionCoeffs[i]) *
((i == 0 ? 1 : Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.BeamScatteredBeams[i]) * canopy.LAIAccums[i - 1])) -
Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.BeamScatteredBeams[i]) * canopy.LAIAccums[i])) *
(canopy.BeamScatteredBeams[i] / (canopy.BeamScatteredBeams[i] + canopy.BeamExtCoeffs[i]))) -
((1 - canopy.LeafScatteringCoeffs[i]) *
((i == 0 ? 1 : Math.Exp(-2 * canopy.BeamExtCoeffs[i] * canopy.LAIAccums[i - 1])) -
Math.Exp(-2 * canopy.BeamExtCoeffs[i] * canopy.LAIAccums[i])) / 2));
}
if (canopy.BeamScatteredBeamsNIR[i] + canopy.BeamExtCoeffsNIR[i] == 0)
{
AbsorbedRadiationScatteredNIR[i] = 0;
}
else
{
AbsorbedRadiationScatteredNIR[i] = canopy.DirectNIR * (((1 - canopy.BeamReflectionCoeffsNIR[i]) *
((i == 0 ? 1 : Math.Exp(-(canopy.BeamExtCoeffsNIR[i] + canopy.BeamScatteredBeamsNIR[i]) * canopy.LAIAccums[i - 1])) -
Math.Exp(-(canopy.BeamExtCoeffsNIR[i] + canopy.BeamScatteredBeamsNIR[i]) * canopy.LAIAccums[i])) *
(canopy.BeamScatteredBeamsNIR[i] / (canopy.BeamScatteredBeamsNIR[i] + canopy.BeamExtCoeffsNIR[i]))) -
((1 - canopy.LeafScatteringCoeffsNIR[i]) *
((i == 0 ? 1 : Math.Exp(-2 * canopy.BeamExtCoeffsNIR[i] * canopy.LAIAccums[i - 1])) -
Math.Exp(-2 * canopy.BeamExtCoeffsNIR[i] * canopy.LAIAccums[i])) / 2));
}
}
}
//---------------------------------------------------------------------------------------------------------
public void CalcElectronTransportRate25(LeafCanopy canopy, SunlitShadedCanopy shaded, PhotosynthesisModel PM)
{
for (int i = 0; i < _nLayers; i++)
{
//J2Max25[i] = canopy.LAI * canopy.CPath.PsiJ2 * (canopy.LeafNTopCanopy - canopy.CPath.StructuralN) *
// ((i == 0 ? 1 : Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i - 1])) -
// Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i])) /
// (canopy.NAllocationCoeff + canopy.BeamExtCoeffs[i] * canopy.LAI);
JMax25[i] = canopy.LAI * canopy.CPath.PsiJ * (canopy.LeafNTopCanopy - canopy.CPath.StructuralN) *
((i == 0 ? 1 : Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i - 1])) -
Math.Exp(-(canopy.BeamExtCoeffs[i] + canopy.NAllocationCoeff / canopy.LAI) * canopy.LAIAccums[i])) /
(canopy.NAllocationCoeff + canopy.BeamExtCoeffs[i] * canopy.LAI);
}
}
//---------------------------------------------------------------------------------------------------------
public double calcAj(LeafCanopy canopy, SunlitShadedCanopy s, int layer)
{
double x1 = s.J[layer] / 4;
double x2 = 2 * s.r_[layer];
double a, b, c, d;
a = -1 * canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] - s.gm_CO2T[layer] * x2 + s.RdT[layer] - x1; //Eq (A56)
b = -1 * canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] * s.RdT[layer] + canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] * x1 -
s.gm_CO2T[layer] * s.RdT[layer] * x2 - s.gm_CO2T[layer] * s.r_[layer] * x1; // Eq (A57)
c = canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] + s.gm_CO2T[layer] * x2 - s.RdT[layer] + x1; // Eq (A58)
d = 1;
return((-1 * Math.Pow((Math.Pow(a, 2) - 4 * b), 0.5) + c) / (2 * d)); //Eq (A55)
}
//---------------------------------------------------------------------------------------------------------
public double calcAc(LeafCanopy canopy, SunlitShadedCanopy s, int layer)
{
double x1 = s.VcMaxT[layer];
double x2 = s.Kc[layer] * (1 + canopy.oxygenPartialPressure / s.Ko[layer]);
double a, b, c, d;
a = -1 * canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] - s.gm_CO2T[layer] * x2 + s.RdT[layer] - x1; //Eq (A56)
b = -1 * canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] * s.RdT[layer] + canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] * x1 -
s.gm_CO2T[layer] * s.RdT[layer] * x2 - s.gm_CO2T[layer] * s.r_[layer] * x1; // Eq (A57)
c = canopy.CPath.CiCaRatio * canopy.Ca * s.gm_CO2T[layer] + s.gm_CO2T[layer] * x2 - s.RdT[layer] + x1; // Eq (A58)
d = 1;
return((-1 * Math.Pow((Math.Pow(a, 2) - 4 * b), 0.5) + c) / (2 * d)); //Eq (A55)
}
//--------------------------------------------------------------
public double calcAc(LeafCanopy canopy, SunlitShadedCanopy s, int layer)
{
int iteration = 1;
double cm_ = 160;
while (iteration <= 4)
{
cm_ = calcAc(canopy, s, layer, cm_, false, true);
iteration++;
}
s.Cm_ac[layer] = cm_;
double Ac1 = calcAc(canopy, s, layer, cm_, true, true);
double Ac2 = calcAc(canopy, s, layer, cm_, true, false);
return(Math.Min(Ac1, Ac2));
}
////---------------------------------------------------------------------------------------------------------
/// <summary>
///
/// </summary>
/// <param name="PM"></param>
/// <param name="canopy"></param>
public virtual void CalcConductanceResistance(PhotosynthesisModel PM, LeafCanopy canopy)
{
for (int i = 0; i < canopy.NLayers; i++)
{
//gbh[i] = 0.01 * Math.Pow((canopy.us[i] / canopy.leafWidth), 0.5) *
// (1 - Math.Exp(-1 * (0.5 * canopy.ku + canopy.kb) * canopy.LAI)) / (0.5 * canopy.ku + canopy.kb);
Gbw[i] = Gbh[i] / 0.92; //This 0.92 changed from 0.93 29/06
Rbh[i] = 1 / Gbh[i];
Rbw[i] = 1 / Gbw[i];
Gbw_m[i] = PM.EnvModel.ATM * PM.Canopy.Rair * Gbw[i];
GbCO2[i] = Gbw_m[i] / 1.37;
}
}
//---------------------------------------------------------------------------
public PhotosynthesisModel()
{
EnvModel = new EnvironmentModel();
Canopy = new LeafCanopy();
Canopy.NLayers = 1;
//sunlit = new SunlitCanopy();
//shaded = new ShadedCanopy();
//canopy.notifyChanged += runDaily;
photoPathwayChanged += Canopy.PhotoPathwayChanged;
//envModel.notify += runDaily;
Parameters = new List <string>();
Variables = new List <string>();
SunlitShadedVariables = new List <string>();
CanopyVariables = new List <string>();
//canopy.layerNumberChanged += sunlit.initArrays;
//canopy.layerNumberChanged += shaded.initArrays;
}
//---------------------------------------------------------------------------
public PhotosynthesisModel()
{
envModel = new EnvironmentModel();
canopy = new LeafCanopy();
canopy.nLayers = 1;
sunlit = new SunlitCanopy();
shaded = new ShadedCanopy();
canopy.notifyChanged += runDaily;
photoPathwayChanged += canopy.photoPathwayChanged;
envModel.notify += runDaily;
parameters = new List <string>();
variables = new List <string>();
sunlitShadedVariables = new List <string>();
canopyVariables = new List <string>();
canopy.layerNumberChanged += sunlit.initArrays;
canopy.layerNumberChanged += shaded.initArrays;
}
