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Surface Energy Fluxes Estimation Over the South Asia Subcontinent Through Assimilating MODIS/TERRA Satellite Data With In Situ Observations and GLDAS Product by SEBS Model
Zhao, Wei; Li, Ainong; Deng, Wei
Corresponding AuthorWei Zhao
2014
Source PublicationIEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
ISSN1939-1404
EISSN2151-1535
Volume7Issue:9Pages:3704-3712
SubtypeArticle; Proceedings Paper
AbstractEvapotranspiration (ET) estimation is important to water resource management in the South Asia subcontinent, and remote sensing method is a good choice to get surface energy fluxes for ET estimation. However, the accuracy of regional atmospheric parameters plays a vital role especially for South Asia with few meteorological stations available. In this study, to seek a practical way to derive surface energy fluxes for ET estimation, we compare the performances of three methods based on SEBS model using different meteorological data sources (meteorological stations, GLDAS product and the combination of in situ observation, and satellite retrieval). The spatial distribution and value reasonability analysis of the estimates indicate that the three methods cannot provide reliable estimates because of the constraint of station number and GLDAS product accuracy. Correlation analysis finds that there is a good agreement between GLDAS air temperature product and in situ observations with the coefficient of determination (R2) above 0.4 for 5 days in 2008. According to the relationship, an integration method is proposed by recalibrating GLDAS air temperature with in situ observations with other atmospheric parameters supplied by GLDAS product, and the average values of the estimated LE calculated at 100 NDVI intervals are well correlated with NDVI with R-2 more than 0.695. The LE values are also within a reasonable value range with the maximum about 700 W/m(2) occurred at the full vegetation cover condition. The results indicate that the integration method is a practical way of obtaining surface energy fluxes and ET estimation for South Asia.
KeywordEvapotranspiration (Et) Modis Sebs South Asia Surface Energy Fluxes
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1109/JSTARS.2014.2325966
URL查看原文
WOS Subject ExtendedEngineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology
Indexed BySCI
WOS KeywordREMOTE-SENSING ALGORITHM ; LAND DATA ASSIMILATION ; BALANCE SYSTEM SEBS ; REGIONAL EVAPOTRANSPIRATION ; HEAT FLUXES ; TEMPERATURE ; EVAPORATION ; AREA ; INFORMATION ; RADIATION
Language英语
Quartile3区
TOP
WOS SubjectEngineering, Electrical & Electronic ; Geography, Physical ; Remote Sensing ; Imaging Science & Photographic Technology
WOS IDWOS:000344992200004
Funding Organization"Hundred Talents" Project, Key Program of Chinese Academy of Sciences(KZZD-EW-08-01) ; National Natural Science Foundation Project(41271433) ; Youth Foundation of IMHE, CAS
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/7203
Collection数字山地与遥感应用中心
山区发展研究中心
AffiliationChinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
Zhao, Wei,Li, Ainong,Deng, Wei. Surface Energy Fluxes Estimation Over the South Asia Subcontinent Through Assimilating MODIS/TERRA Satellite Data With In Situ Observations and GLDAS Product by SEBS Model[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2014,7(9):3704-3712.
APA Zhao, Wei,Li, Ainong,&Deng, Wei.(2014).Surface Energy Fluxes Estimation Over the South Asia Subcontinent Through Assimilating MODIS/TERRA Satellite Data With In Situ Observations and GLDAS Product by SEBS Model.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,7(9),3704-3712.
MLA Zhao, Wei,et al."Surface Energy Fluxes Estimation Over the South Asia Subcontinent Through Assimilating MODIS/TERRA Satellite Data With In Situ Observations and GLDAS Product by SEBS Model".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 7.9(2014):3704-3712.
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