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A Quantitative Inspection on Spatio-Temporal Variation of Remote Sensing-Based Estimates of Land Surface Evapotranspiration in South Asia
Li, Ainong; Zhao, Wei; Deng, Wei
Corresponding AuthorLi, Ainong ; Zhao, Wei
2015
Source PublicationREMOTE SENSING
EISSN2072-4292
Volume7Issue:4Pages:4726-4752
SubtypeArticle
AbstractEvapotranspiration (ET) plays a key role in water resource management. It is important to understand the ET spatio-temporal pattern of South Asia for understanding and anticipating serious water resource shortages. In this study, daily ET in 2008 was estimated over South Asia by using MODerate Resolution Imaging Spectroradiometer (MODIS) products combined with field observations and Global Land Data Assimilation System (GLDAS) product through Surface Energy Balance System (SEBS) model. Monthly ET data were calculated based on daily ET and evaluated by the GLDAS ET data. Good agreements were found between two datasets for winter months (October to February) with R-2 from 0.5 to 0.7. Spatio-temporal analysis of ET was conducted. Ten specific sites with different land cover types at typical climate regions were selected to analyze the ET temporal change pattern, and the result indicated that the semi-arid or arid areas in the northwest had the lowest average daily ET (around 0.3 mm) with a big fluctuation in the monsoon season, while the sites in the Indo-Gangetic Plain and in southern India has bigger daily ET (more than 3 mm) due to a large water supplement. It is suggested that the monsoon climate has a large impact on ET spatio-temporal variation in the whole region.
KeywordSebs Modis South Asia Evapotranspiration Spatio-temporal Analysis
WOS HeadingsScience & Technology ; Technology
DOI10.3390/rs70404726
WOS Subject ExtendedRemote Sensing
Indexed BySCI
WOS KeywordDAILY NET-RADIATION ; ENERGY BALANCE SYSTEM ; WATER-RESOURCES ; SENSED DATA ; SEBS MODEL ; MODIS DATA ; TIBETAN PLATEAU ; AIR-TEMPERATURE ; RIVER-BASINS ; FLUXES
Language英语
Quartile2区
TOP
WOS SubjectRemote Sensing
WOS IDWOS:000354789300059
Funding OrganizationChinese Academy of Sciences(KZZD-EW-08-01) ; "Hundred Talents" Project, National natural science foundation project(41271433 ; BIC of Chinese Academy of Sciences(GJHZ201320) ; West Light Foundation of Chinese Academy of Sciences ; 41401425)
Accession numberAccession number: 20153101082697
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/10486
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
Li, Ainong,Zhao, Wei,Deng, Wei. A Quantitative Inspection on Spatio-Temporal Variation of Remote Sensing-Based Estimates of Land Surface Evapotranspiration in South Asia[J]. REMOTE SENSING,2015,7(4):4726-4752.
APA Li, Ainong,Zhao, Wei,&Deng, Wei.(2015).A Quantitative Inspection on Spatio-Temporal Variation of Remote Sensing-Based Estimates of Land Surface Evapotranspiration in South Asia.REMOTE SENSING,7(4),4726-4752.
MLA Li, Ainong,et al."A Quantitative Inspection on Spatio-Temporal Variation of Remote Sensing-Based Estimates of Land Surface Evapotranspiration in South Asia".REMOTE SENSING 7.4(2015):4726-4752.
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