An intercomparison of three remote sensing-based energy balance models using Large Aperture Scintillometer measurements over a wheat-corn production region
文献类型:期刊论文
作者 | Tang, Ronglin1,2,3![]() ![]() ![]() |
刊名 | REMOTE SENSING OF ENVIRONMENT
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出版日期 | 2011-12-15 |
卷号 | 115期号:12页码:3187-3202 |
关键词 | Comparison Modis Evapotranspiration Models Large Aperture Scintillometer |
文献子类 | Article |
英文摘要 | This 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. |
WOS关键词 | LAND-SURFACE TEMPERATURE ; SOUTHERN GREAT-PLAINS ; SOIL-WATER CONTENT ; MODIS-LAI PRODUCT ; LEAF-AREA INDEX ; VEGETATION INDEX ; EDDY-COVARIANCE ; RADIOMETRIC TEMPERATURE ; UNCERTAINTY ANALYSIS ; CANOPY TEMPERATURE |
语种 | 英语 |
WOS记录号 | WOS:000298311300020 |
出版者 | ELSEVIER SCIENCE INC |
源URL | [http://ir.igsnrr.ac.cn/handle/311030/68055] ![]() |
专题 | 中国科学院地理科学与资源研究所 |
通讯作者 | Li, Zhao-Liang |
作者单位 | 1.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 |
推荐引用方式 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. |
入库方式: OAI收割
来源:地理科学与资源研究所
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