中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Estimation and validation of high-resolution evapotranspiration products for an arid river basin using multi-source remote sensing data

文献类型:期刊论文

作者Xiao, Jing4,5; Sun, Fubao2,3,4,5; Wang, Tingting2; Wang, Hong2
刊名AGRICULTURAL WATER MANAGEMENT
出版日期2024-06-01
卷号298页码:108864
关键词Surface energy balance model Spatiotemporal evapotranspiration pattern Landsat images Uncertainty
DOI10.1016/j.agwat.2024.108864
产权排序4
文献子类Article
英文摘要Accurate estimation of evapotranspiration (ET) at high spatial resolution is crucial for drought monitoring and water resources management, but currently available remote sensing ET products generally have coarse spatial resolution (>= 1000 m). To estimate ET at a high spatial resolution, Landsat images, Global Land Surface Satellite (GLASS), Moderate Resolution Imaging Spectroradiometer (MODIS), and meteorological forcing data were integrated, and the surface energy balance (SEBS) model was employed to calculate the 16 -day average ET at 30 m resolution for China ' s Tarim River Basin, spanning from 2009 to 2018. The results indicated that the average 16day ET estimates correlated well with ground observations for land and water surfaces (root mean square error (RMSE) for land = 0.92 mm day - 1 , RMSE for water = 1.63 mm day - 1 , mean bias for land = 0.3 mm day - 1 , mean bias for water = 0.52 mm day - 1 ). Cross validation with GLASS, ETMonitor, and Penman-Monteith-Leuning (PML_V2) ET datasets revealed an overall increasing trend for all four products (PML_V2 = 6.277 mm year - 1 , GLASS = 2.185 mm year -1 , ETMonitor = 3.258 mm year - 1 , SEBS = 1.441 mm year - 1 ), demonstrating good spatial consistency. The consistent increasing pixels were primarily distributed in the northern, southwestern, and southeastern mountainous regions, accounting for 22.8%, while 0.29% of the consistent decreasing pixels were mainly concentrated in the central desert and mountain -front oasis areas. Inconsistent pixels accounted for 76.9%, with 2.34% of the inconsistent decreasing pixels exhibiting a scattered distribution, while 37.28% of the inconsistent increasing pixels were mainly found in the central desert and some oasis areas. Furthermore, SEBS ET trend analysis indicated that the oasis area experienced more pronounced changes than the mountainous and desert areas during the 2009 - 2018 period. The SEBS ET estimated in this study can provide high -precision data support and a reference for future research on the water resources management.
WOS关键词SURFACE-ENERGY-BALANCE ; AREA INDEX ESTIMATION ; WACMOS-ET PROJECT ; LATENT-HEAT FLUX ; TARIM RIVER ; GLOBAL EVAPOTRANSPIRATION ; TERRESTRIAL EVAPOTRANSPIRATION ; IMPROVING EVAPOTRANSPIRATION ; SPATIOTEMPORAL FUSION ; HEIHE RIVER
WOS研究方向Agriculture ; Water Resources
WOS记录号WOS:001241852500001
出版者ELSEVIER
源URL[http://ir.igsnrr.ac.cn/handle/311030/205333]  
专题陆地水循环及地表过程院重点实验室_外文论文
通讯作者Sun, Fubao; Wang, Tingting
作者单位1.Datun Rd 11, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
3.Akesu Natl Stn Observat & Res Oasis Agroecosyst, Akesu 843017, Xinjiang, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, State Key Lab Desert & Oasis Ecol, Urumqi 830011, Peoples R China
推荐引用方式
GB/T 7714
Xiao, Jing,Sun, Fubao,Wang, Tingting,et al. Estimation and validation of high-resolution evapotranspiration products for an arid river basin using multi-source remote sensing data[J]. AGRICULTURAL WATER MANAGEMENT,2024,298:108864.
APA Xiao, Jing,Sun, Fubao,Wang, Tingting,&Wang, Hong.(2024).Estimation and validation of high-resolution evapotranspiration products for an arid river basin using multi-source remote sensing data.AGRICULTURAL WATER MANAGEMENT,298,108864.
MLA Xiao, Jing,et al."Estimation and validation of high-resolution evapotranspiration products for an arid river basin using multi-source remote sensing data".AGRICULTURAL WATER MANAGEMENT 298(2024):108864.

入库方式: OAI收割

来源:地理科学与资源研究所

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