Paper Info
Title
Modeling and Partitioning of Regional Evapotranspiration Using a Satellite-Driven Water-Carbon Coupling Model.
Abstract
The modeling and partitioning of regional evapotranspiration (ET) are key issues in global hydrological and ecological research. We incorporated a stomatal conductance model and a light-use efficiency-based gross primary productivity (GPP) model into the Shuttleworth-Wallace model to develop a simplified carbon-water coupling model, SWH, for estimating ET using meteorological and remote sensing data. To enable regional application of the SWH model, we optimized key parameters with measurements from global eddy covariance (EC) tower sites. In addition, we estimated soil water content with the principle of the bucket system. The model prediction of ET agreed well with the estimates obtained with the EC measurements, with an average R-2 of 0.77 and a root mean square error of 0.72 mmday(-1). The model performance was generally better for woody ecosystems than herbaceous ecosystems. Finally, the spatial patterns of ET and relevant model outputs (i.e., GPP, water-use efficiency and the ratio of soil water evaporation to ET) in China with the model simulations were assessed.
Year
DOI
Venue
2017
10.3390/rs9010054
REMOTE SENSING
Keywords
Field
DocType
SWH model,evapotranspiration partitioning,remote sensing,GPP modeling,Shuttleworth-Wallace model,FLUXNET
Satellite,FluxNet,Remote sensing,Mean squared error,Eddy covariance,Geology,Stomatal conductance,Evapotranspiration,Spatial ecology,Soil water
Journal
Volume
Issue
Citations 
9
1
0
PageRank 
References 
Authors
0.34
1
9
Name
Order
Citations
PageRank
Zhongmin Hu100.34
Genan Wu200.34
Liangxia Zhang301.01
Shenggong Li400.34
Xianjin Zhu500.34
Han Zheng600.34
Leiming Zhang7688.34
Xiaomin Sun8136.46
Guirui Yu973.05