Arid
DOI10.1016/j.advwatres.2012.07.005
Evaluating the two-source energy balance model using local thermal and surface flux observations in a strongly advective irrigated agricultural area
Kustas, William P.1; Alfieri, Joseph G.1; Anderson, Martha C.1; Colaizzi, Paul D.2; Prueger, John H.3; Evett, Steven R.2; Neale, Christopher M. U.; French, Andrew N.5; Hipps, Lawrence E.4; Chavez, Jose L.6; Copeland, Karen S.2; Howell, Terry A.2
通讯作者Kustas, William P.
来源期刊ADVANCES IN WATER RESOURCES
ISSN0309-1708
出版年2012
卷号50页码:120-133
英文摘要

Application and validation of many thermal remote sensing-based energy balance models involve the use of local meteorological inputs of incoming solar radiation, wind speed and air temperature as well as accurate land surface temperature (LST), vegetation cover and surface flux measurements. For operational applications at large scales, such local information is not routinely available. In addition, the uncertainty in LST estimates can be several degrees due to sensor calibration issues, atmospheric effects and spatial variations in surface emissivity. Time differencing techniques using multi-temporal thermal remote sensing observations have been developed to reduce errors associated with deriving the surface-air temperature gradient, particularly in complex landscapes. The Dual-Temperature-Difference (DTD) method addresses these issues by utilizing the Two-Source Energy Balance (TSEB) model of Norman et al. (1995) [1], and is a relatively simple scheme requiring meteorological input from standard synoptic weather station networks or mesoscale modeling. A comparison of the TSEB and DTD schemes is performed using LST and flux observations from eddy covariance (EC) flux towers and large weighing lysimeters (LYs) in irrigated cotton fields collected during BEAREX08, a large-scale field experiment conducted in the semi-arid climate of the Texas High Plains as described by Evett et al. (2012) [2]. Model output of the energy fluxes (i.e., net radiation, soil heat flux, sensible and latent heat flux) generated with DTD and TSEB using local and remote meteorological observations are compared with EC and LY observations. The DTD method is found to be significantly more robust in flux estimation compared to the TSEB using the remote meteorological observations. However, discrepancies between model and measured fluxes are also found to be significantly affected by the local inputs of LST and vegetation cover and the representativeness of the remote sensing observations with the local flux measurement footprint. Published by Elsevier Ltd.


英文关键词Thermal remote sensing Two-source energy balance modeling Land surface temperature Evapotranspiration Time differencing methods
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000311747300011
WOS关键词SOIL HEAT-FLUX ; RADIOMETRIC TEMPERATURE ; NET-RADIATION ; VEGETATION ; EVAPORATION ; COVER ; WATER ; UTILITY ; SMACEX ; CARBON
WOS类目Water Resources
WOS研究方向Water Resources
来源机构Colorado State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/170988
作者单位1.ARS, USDA, Hydrol & Remote Sensing Lab, BARC W, Beltsville, MD 20705 USA;
2.USDA ARS, Conservat & Prod Res Lab, Bushland, TX 79012 USA;
3.USDA ARS, Natl Lab Agr & Environm, Ames, IA 50011 USA;
4.Utah State Univ, Plants Soils & Climate Depart, Logan, UT 84322 USA;
5.USDA ARS, Arid Land Agr Res Ctr, Maricopa, AZ 85238 USA;
6.Colorado State Univ, Dept Civil & Environ Engr, Ft Collins, CO 80523 USA
推荐引用方式
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Kustas, William P.,Alfieri, Joseph G.,Anderson, Martha C.,et al. Evaluating the two-source energy balance model using local thermal and surface flux observations in a strongly advective irrigated agricultural area[J]. Colorado State University,2012,50:120-133.
APA Kustas, William P..,Alfieri, Joseph G..,Anderson, Martha C..,Colaizzi, Paul D..,Prueger, John H..,...&Howell, Terry A..(2012).Evaluating the two-source energy balance model using local thermal and surface flux observations in a strongly advective irrigated agricultural area.ADVANCES IN WATER RESOURCES,50,120-133.
MLA Kustas, William P.,et al."Evaluating the two-source energy balance model using local thermal and surface flux observations in a strongly advective irrigated agricultural area".ADVANCES IN WATER RESOURCES 50(2012):120-133.
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