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An intercomparison of three remote sensing-based energy balance models using Large Aperture Scintillometer measurements over a wheat-corn production region
Tang, Ronglin1,2,3; Li, Zhao-Liang1,2; Jia, Yuanyuan4; Li, Chuanrong4; Sun, Xiaomin5; Kustas, William P.6; Anderson, Martha C.6
2011-12-15
Source PublicationREMOTE SENSING OF ENVIRONMENT
Volume115Issue:12Pages:3187-3202
AbstractThis paper compares three remote sensing-based models for estimating evapotranspiration (ET), namely the Surface Energy Balance System (SEBS), the Two-Source Energy Balance (TSEB) model, and the surface temperature-vegetation index Triangle (TVT). The models used as input MODIS/TERRA products and ground measurements collected during the wheat and corn growth period in a subhumid climate at a measurement station in Yucheng, China. MODIS land surface temperature (LST) and leaf area index (LAI) products, corrected using ground-truth observations, were used in the three models. The TSEB model output of sensible (H) and latent (LE) heat fluxes were in good agreement with Large Aperture Scintillometer (LAS)-measured H and LE derived by residual (RMSD<45 W/m(2)). Reasonable agreement was also obtained with the SEBS model output yielding RMSD for H of -40 W/m(2) and LE -55 W/m(2). However, the TVT model output resulted in poor agreement with the LAS-estimated H and LE with RMSD-values >110 W/m(2). Using the uncorrected MODIS LST and LAI products resulted in a deterioration of the agreement in H and LE with LAS-estimated values for both the TSEB and SEBS models, whereas TVT performance improved marginally. These results indicate that the TSEB model yielded the closest agreement with the LAS-estimated fluxes using either the corrected or uncorrected MODIS inputs (LST and LAI). The SEBS model also computed reasonable H and LE values but was significantly more sensitive to errors in MODIS LST and LAI inputs than the TSEB model. In the TVT model, output of H and LE was unacceptable in either scenario of MODIS input which was attributable to errors in selection of the dry edge. With the TVT method, accurate determination of the dry edge end member is critical in regional ET estimation, but for humid and subhumid regions this end member may often be quite difficult to identify or encompass within a satellite scene. (C) 2011 Elsevier Inc. All rights reserved.
SubtypeArticle
KeywordComparison Modis Evapotranspiration Models Large Aperture Scintillometer
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
WOS Subject ExtendedEnvironmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS KeywordLAND-SURFACE TEMPERATURE ; SOUTHERN GREAT-PLAINS ; SOIL-WATER CONTENT ; MODIS-LAI PRODUCT ; LEAF-AREA INDEX ; VEGETATION INDEX ; EDDY-COVARIANCE ; RADIOMETRIC TEMPERATURE ; UNCERTAINTY ANALYSIS ; CANOPY TEMPERATURE
Indexed BySCI
Language英语
WOS SubjectEnvironmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000298311300020
PublisherELSEVIER SCIENCE INC
Citation statistics
Cited Times:76[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/68056
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLi, Zhao-Liang
Affiliation1.Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.CNRS, UdS, LSIIT, F-67412 Illkirch Graffenstaden, France
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Acad Optoelect, Beijing 100190, Peoples R China
5.Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
6.ARS, USDA, Hydrol & Remote Sensing Lab, Beltsville, MD 20705 USA
Recommended Citation
GB/T 7714
Tang, Ronglin,Li, Zhao-Liang,Jia, Yuanyuan,et al. An intercomparison of three remote sensing-based energy balance models using Large Aperture Scintillometer measurements over a wheat-corn production region[J]. REMOTE SENSING OF ENVIRONMENT,2011,115(12):3187-3202.
APA Tang, Ronglin.,Li, Zhao-Liang.,Jia, Yuanyuan.,Li, Chuanrong.,Sun, Xiaomin.,...&Anderson, Martha C..(2011).An intercomparison of three remote sensing-based energy balance models using Large Aperture Scintillometer measurements over a wheat-corn production region.REMOTE SENSING OF ENVIRONMENT,115(12),3187-3202.
MLA Tang, Ronglin,et al."An intercomparison of three remote sensing-based energy balance models using Large Aperture Scintillometer measurements over a wheat-corn production region".REMOTE SENSING OF ENVIRONMENT 115.12(2011):3187-3202.
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