ruigao9 / silsm_v3

An Modified Shuttleworth-Wallace model with isotopic tracers

SiLSM_v3

An Modified Shuttleworth-Wallace model with isotopic tracers

please cite: Wei Z., Lee X. Wen X. and Xiao. W.: Evapotranspiration partitioning for three agro-ecosystems with contrasting moisture conditions: a comparison of an isotope method and a two-source model calculation (In press, Agricultural and Forest Meteorology).

Model Description

Our isotope-enabled two source model is applicable for evaluating evapotranspiration and its sub-components for different vegetation types with contrasting moisture conditions (even under flooding condition), and useful as an independent tool for investigating the discrepancies between isotope and non-isotope method. This model has been validated with observed isotope composition in the bulk leaf water and with the ET flux for variable vegetation covers, including crops (Rice, Wheat and Corn) and mangrove.

If you have questions regarding our model and website, any suggestions to improve our work, or want to use this model, please contact me.

Index of matlab Files

File	Description
SiLSMv3.m	The main function.
MyConstants.m	The MyConstants.m file is a text file that defines parameters that used in model calculation
ETestimation.m	The ETestimation.m file handles the interation processes occurs in the model
ETsw.m	ET calculated by Shuttleworth-Wallace model
brutsaertstability.m	Stability correction calulated based on Brutsaerts [2005]
Solar_zenith_angle.m	Solar zenith angle calculation, optional
sun_position.m	Sunposition calculation, optional
surface_conductance.m	Canopy conductance calculation
aerodynamicresistance.m	Aerodynamic resistance calculation
flux_c.m	Force flux balance
modelperformance.m	Check model performance
metalib.m	Meta lib calculation
nonsteadyT.m	Isotopic composition of transpiration under the steady-state assumption
Tc_Taylor_Expansion_theory.m	Canopy temperature calulated using Taylor expansion theory
test.mat	Test data for the model
DE_flooding.m	Soil evaporation isotope calculation under flooding condition
DE_nonflooding.m	Soil evaporation isotope calculation under nonflooding condition
dailyaverage.m	Average data to daily
dailyaverageweight.m	Average data to daily with weight function