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Move equations to right folder #171

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May 24, 2023
Merged

Move equations to right folder #171

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d6ff844
fix function path
Yunfei-Wang1993 May 24, 2023
bf3bde2
Moving equations to the right folder
Yunfei-Wang1993 May 24, 2023
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14 changes: 14 additions & 0 deletions src/+equations/calcLambda.m
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
function calcLambda(VPER, POR, Lamda_soc, XSOC)
%{
Calculate soil hydraulic properties according to equation 6c in
Zheng, D., van der Velde, R., Su, Z., Wang, X., Wen, J., Booij, M. J.,
Hoekstra, A. Y., and Chen, Y.: Augmentations to the Noah model physics
for application to the Yellow River source area. Part I: Soil water
flow, Journal of Hydrometeorology, 16, 2659-2676,
https://doi.org/10.1175/JHM-D-14-0198.1, 2015

%}

Lamda = (2.91 + 0.159 * VPER / (1 - POR) * 100);
Lamda = 1 / (Lamda * (1 - XSOC) + XSOC * Lamda_soc);
end
15 changes: 15 additions & 0 deletions src/+equations/calcPhi_s.m
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@@ -0,0 +1,15 @@
function Phi_s = calcPhi_s(VPER, POR, Phi_soc, XSOC)
%{
Calculate soil hydraulic properties according to equation 6b in
Zheng, D., van der Velde, R., Su, Z., Wang, X., Wen, J., Booij, M. J.,
Hoekstra, A. Y., and Chen, Y.: Augmentations to the Noah model physics
for application to the Yellow River source area. Part I: Soil water
flow, Journal of Hydrometeorology, 16, 2659-2676,
https://doi.org/10.1175/JHM-D-14-0198.1, 2015

%}

Phi_s = -0.01 * 10^(1.88 - 0.0131 * VPER / (1 - POR) * 100);
Phi_s = (Phi_s * (1 - XSOC) + XSOC * Phi_soc) * 100;

end
4 changes: 2 additions & 2 deletions src/+init/updateSoilVariables.m
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Expand Up @@ -28,8 +28,8 @@
SoilVariables.Lamda(i) = SoilProperties.Coef_Lamda(j);
else
VanGenuchten.Theta_s(i) = 0.489 - 0.00126 * SoilVariables.VPER(i, 1) / (1 - SoilVariables.POR(i)) * 100;
SoilVariables.Phi_s(i) = init.calcPhi_s(SoilVariables.VPER(i, 1), SoilVariables.POR, SoilConstants.Phi_soc, SoilVariables.XSOC);
SoilVariables.Lamda(i) = init.calcLambda(SoilVariables.VPER(i, 3), SoilVariables.POR, SoilVariables.Lamda_soc, SoilVariables.XSOC);
SoilVariables.Phi_s(i) = equations.calcPhi_s(SoilVariables.VPER(i, 1), SoilVariables.POR, SoilConstants.Phi_soc, SoilVariables.XSOC);
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SoilVariables.Lamda(i) = equations.calcLambda(SoilVariables.VPER(i, 3), SoilVariables.POR, SoilVariables.Lamda_soc, SoilVariables.XSOC);
end
SoilVariables.XWILT(i) = VanGenuchten.Theta_s(i) * ((-1.5e4) / SoilVariables.Phi_s(i))^(-1 * SoilVariables.Lamda(i));
end