干旱区生态环境知识资源中心(Arid): Comparison of Satellite Driven Surface Energy Balance Models in Estimating Crop Evapotranspiration in Semi-Arid to Arid Inter-Mountain Region

Arid

DOI	10.3390/rs13091822
	Comparison of Satellite Driven Surface Energy Balance Models in Estimating Crop Evapotranspiration in Semi-Arid to Arid Inter-Mountain Region
	Acharya, Bibek; Sharma, Vivek
通讯作者	Sharma, V (corresponding author), Univ Florida, Inst Food & Agr Sci, Agr & Biol Engn Dept, Gainesville, FL 32611 USA.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2021
卷号	13 期号:9
英文摘要	The regional-scale estimation of crop evapotranspiration (ETc) over a heterogeneous surface is an important tool for the decision-makers in managing and allocating water resources. This is especially critical in the arid to semi-arid regions that require supplemental water due to insufficient precipitation, soil moisture, or groundwater. Over the years, various remote sensing-based surface energy balance (SEB) models have been developed to accurately estimate ETc over a regional scale. However, it is important to carry out the SEB model assessment for a particular geographical setting to ensure the suitability of a model. Thus, in this study, four commonly used and contrasting remote sensing models viz. METRIC (mapping evapotranspiration at high resolution with internalized calibration), SEBAL (surface energy balance algorithm for land), S-SEBI (simplified surface energy balance index), and SEBS (surface energy balance system) were compared and used to quantify and map the spatio-temporal variation of ETc in the semi-arid to arid inter-mountain region of Big Horn Basin, Wyoming (Landsat Path/Row: 37/29). Model estimates from 19 cloud-free Landsat 7 and 8 images were compared with the Bowen ratio energy balance system (BREBS) flux stationed in a center pivot irrigated field during 2017 (sugar beet), 2018 (dry bean), and 2019 (barley) growing seasons. The results indicated that all SEB models are effective in capturing the variation of ETc with R-2 ranging in between 0.06 to 0.95 and RMSD between 0.07 to 0.15 mm h(-1). Pooled data over three vegetative surfaces for three years under irrigated conditions revealed that METRIC (NSE = 0.9) performed better across all land cover types, followed by SEBS (NSE = 0.76), S-SEBI (NSE = 0.73), and SEBAL (NSE = 0.65). In general, all SEB models substantially overestimated ETc and underestimated sensible heat (H) fluxes under dry conditions when only crop residue was available at the surface. A mid-season density plot and absolute difference maps at image scale between the models showed that models involving METRIC, SEBAL, and S-SEBI are close in their estimates of daily crop evapotranspiration (ET24) with pixel-wise RMSD ranged from 0.54 to 0.76 mm d(-1) and an average absolute difference across the study area ranged from 0.47 to 0.56 mm d(-1). Likewise, all the SEB models underestimated the seasonal ETc, except SEBS.
英文关键词	METRIC SEBAL SEBS S-SEBI Landsat evapotranspiration
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000650736800001
WOS关键词	SOUTH-CENTRAL NEBRASKA ; MAPPING EVAPOTRANSPIRATION ; WATER-STRESS ; SOIL-MOISTURE ; METRIC MODELS ; FLUXES ; EVAPORATION ; FIELD ; SEBS ; TEMPERATURE
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/351520
作者单位	[Acharya, Bibek; Sharma, Vivek] Univ Florida, Inst Food & Agr Sci, Agr & Biol Engn Dept, Gainesville, FL 32611 USA
推荐引用方式 GB/T 7714	Acharya, Bibek,Sharma, Vivek. Comparison of Satellite Driven Surface Energy Balance Models in Estimating Crop Evapotranspiration in Semi-Arid to Arid Inter-Mountain Region[J],2021,13(9).
APA	Acharya, Bibek,&Sharma, Vivek.(2021).Comparison of Satellite Driven Surface Energy Balance Models in Estimating Crop Evapotranspiration in Semi-Arid to Arid Inter-Mountain Region.REMOTE SENSING,13(9).
MLA	Acharya, Bibek,et al."Comparison of Satellite Driven Surface Energy Balance Models in Estimating Crop Evapotranspiration in Semi-Arid to Arid Inter-Mountain Region".REMOTE SENSING 13.9(2021).