干旱区生态环境知识资源中心(Arid): A Temperature-Domain SEBAL Model Based on a Wind Speed-Independent Theoretical Trapezoidal Space Between Fractional Vegetation Coverage and Land Surface Temperature

Arid

DOI	10.1109/LGRS.2020.2987485
	A Temperature-Domain SEBAL Model Based on a Wind Speed-Independent Theoretical Trapezoidal Space Between Fractional Vegetation Coverage and Land Surface Temperature
	Wang, Xiaogang; Kang, Qing; Chen, Xiaohong; Fu, Qinghua; Wang, Peng
通讯作者	Wang, P (corresponding author), Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China.
来源期刊	IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
ISSN	1545-598X
EISSN	1558-0571
出版年	2021
卷号	18 期号:5 页码:756-760
英文摘要	The surface energy balance algorithm for land (SEBAL) model is one of the most widely used methods for estimating evapotranspiration. Numerous physical studies have conducted to mitigate the limitations of spatial-domain dependence and the annoying uncertainties in visually identifying the dry/wet pixels in SEBAL; however, they are subject to the quality of wind speed (u) observation, which is known as a high temporal-spatial variation and is not routinely available, especially in a heterogeneous area. In this study, we constructed a u-independent algorithm to calculate the dry/wet endpoints for each pixel. The wet endpoint was determined by assuming no turbulent heat exchange between a water-saturated surface and atmosphere. The dry endpoint was calculated using the assumption and consensus that pixels had equivalent neutral aerodynamic resistance under given atmospheric forcing and vegetation coverage. Then, we built a temperature-domain SEBAL (TD-SEBAL) model and validated it in the MUSOEXE between May and September 2012, located at desert-oasis transition zone in the middle reaches of the Heihe watershed across eight landscapes. The results showed that TD-SEBAL could provide reasonable dry/wet endpoint retrieval, and reliable latent heat flux estimates with a mean bias of -0.25 W/m(2), a root-mean-square error of 52.9 W/m(2), and a coefficient of determination of 0.91.
英文关键词	Evapotranspiration (ET) remote sensing surface energy balance algorithm for land (SEBAL) trapezoidal space
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000642766600001
WOS关键词	ENERGY-BALANCE ALGORITHM ; EVAPOTRANSPIRATION ; PRODUCTS ; INDEX
WOS类目	Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	河海大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350529
作者单位	[Wang, Xiaogang; Kang, Qing; Fu, Qinghua] Pearl River Hydraul Res Inst, Guangzhou 510611, Peoples R China; [Wang, Xiaogang; Chen, Xiaohong] Sun Yat Sen Univ, Water Resources & Environm Res Ctr, Guangzhou 519082, Peoples R China; [Wang, Peng] Hohai Univ, State Key Lab Hydrol Water Resources & Hydraul En, Nanjing 210098, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiaogang,Kang, Qing,Chen, Xiaohong,et al. A Temperature-Domain SEBAL Model Based on a Wind Speed-Independent Theoretical Trapezoidal Space Between Fractional Vegetation Coverage and Land Surface Temperature[J]. 河海大学,2021,18(5):756-760.
APA	Wang, Xiaogang,Kang, Qing,Chen, Xiaohong,Fu, Qinghua,&Wang, Peng.(2021).A Temperature-Domain SEBAL Model Based on a Wind Speed-Independent Theoretical Trapezoidal Space Between Fractional Vegetation Coverage and Land Surface Temperature.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,18(5),756-760.
MLA	Wang, Xiaogang,et al."A Temperature-Domain SEBAL Model Based on a Wind Speed-Independent Theoretical Trapezoidal Space Between Fractional Vegetation Coverage and Land Surface Temperature".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 18.5(2021):756-760.