IGSNRR OpenIR
Intercomparison of Three Two-Source Energy Balance Models for Partitioning Evaporation and Transpiration in Semiarid Climates
Yang, Yongmin1,2; Qiu, Jianxiu3; Zhang, Renhua4; Huang, Shifeng2; Chen, Sheng2; Wang, Hui2; Luo, Jiashun3; Fan, Yue3
2018-07-01
Source PublicationREMOTE SENSING
ISSN2072-4292
Volume10Issue:7Pages:20
Corresponding AuthorQiu, Jianxiu(qiujianxiu@mail.sysu.edu.cn)
AbstractEvaporation (E) and transpiration (T) information is crucial for precise water resources planning and management in arid and semiarid areas. Two-source energy balance (TSEB) methods based on remotely-sensed land surface temperature provide an important modeling approach for estimating evapotranspiration (ET) and its components of E and T. Approaches for accurate decomposition of the component temperature and E/T partitioning from ET based on TSEB requires careful investigation. In this study, three TSEB models are used: (i) the TSEB model with the Priestley-Taylor equation, i.e., TSEB-PT; (ii) the TSEB model using the Penman-Monteith equation, i.e., TSEB-PM, and (iii) the TSEB using component temperatures derived from vegetation fractional cover and land surface temperature (VFC/LST) space, i.e., TSEB-T-C-T-S. These models are employed to investigate the impact of component temperature decomposition on E/T partitioning accuracy. Validation was conducted in the large-scale campaign of Heihe Watershed Allied Telemetry Experimental Research-Multi-Scale Observation Experiment on Evapotranspiration (HiWATER-MUSOEXE) in the northwest of China, and results showed that root mean square errors (RMSEs) of latent and sensible heat fluxes were respectively lower than 76 W/m(2) and 50 W/m(2) for all three approaches. Based on the measurements from the stable oxygen and hydrogen isotopes system at the Daman superstation, it was found that all three models slightly overestimated the ratio of E/ET. In addition, discrepancies in E/T partitioning among the three models were observed in the kernel experimental area of MUSOEXE. Further intercomparison indicated that different temperature decomposition methods were responsible for the observed discrepancies in E/T partitioning. The iterative procedure adopted by TSEB-PT and TSEB-PM produced higher LEC and lower T-C when compared to TSEB-T-C-T-S. Overall, this work provides valuable insights into understanding the performances of TSEB models with different temperature decomposition mechanisms over semiarid regions.
Keywordcomponent temperature decomposition evapotranspiration partitioning two-source energy balance model
DOI10.3390/rs10071149
WOS KeywordESTIMATING SURFACE EVAPOTRANSPIRATION ; REMOTE-SENSING DATA ; SMOS SOIL-MOISTURE ; NORTH CHINA PLAIN ; HEAT-FLUX ; REGIONAL EVAPOTRANSPIRATION ; MAPPING EVAPOTRANSPIRATION ; SATELLITE IMAGERY ; TRIANGLE METHOD ; ALGORITHM
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41501415] ; National Natural Science Foundation of China[41501450] ; National Natural Science Foundation of China[51420105014] ; IWHR Research & Development Support Program[JZ0145B032017] ; 13th five-year plan of National Scientific Research and Development[2017YFC0405803] ; 13th five-year plan of National Scientific Research and Development[2017YFC1502406] ; Natural Science Foundation of Guangdong Province, China[2016A030310154] ; Fundamental Research Funds for the Central Universities[16lgpy06]
Funding OrganizationNational Natural Science Foundation of China ; IWHR Research & Development Support Program ; 13th five-year plan of National Scientific Research and Development ; Natural Science Foundation of Guangdong Province, China ; Fundamental Research Funds for the Central Universities
WOS Research AreaRemote Sensing
WOS SubjectRemote Sensing
WOS IDWOS:000440332500172
PublisherMDPI
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54551
Collection中国科学院地理科学与资源研究所
Corresponding AuthorQiu, Jianxiu
Affiliation1.State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China
2.China Inst Water Resources & Hydropower Res, Minist Water Resources, Res Ctr Flood & Drought Disaster Reduct, Beijing 100038, Peoples R China
3.Sun Yat Sen Univ, Sch Geog & Planning, Guangdong Prov Key Lab Urbanizat & Geosimulat, Guangzhou 510275, Guangdong, Peoples R China
4.Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Yang, Yongmin,Qiu, Jianxiu,Zhang, Renhua,et al. Intercomparison of Three Two-Source Energy Balance Models for Partitioning Evaporation and Transpiration in Semiarid Climates[J]. REMOTE SENSING,2018,10(7):20.
APA Yang, Yongmin.,Qiu, Jianxiu.,Zhang, Renhua.,Huang, Shifeng.,Chen, Sheng.,...&Fan, Yue.(2018).Intercomparison of Three Two-Source Energy Balance Models for Partitioning Evaporation and Transpiration in Semiarid Climates.REMOTE SENSING,10(7),20.
MLA Yang, Yongmin,et al."Intercomparison of Three Two-Source Energy Balance Models for Partitioning Evaporation and Transpiration in Semiarid Climates".REMOTE SENSING 10.7(2018):20.
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