干旱区生态环境知识资源中心(Arid): Mapping daily and seasonally evapotranspiration using remote sensing techniques over the Nile delta

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DOI	10.1016/j.agwat.2018.11.009
	Mapping daily and seasonally evapotranspiration using remote sensing techniques over the Nile delta
	Elnmer, Ayat 1,2,3; Khadr, Mosaad 3; Kanae, Shinjiro 1; Tawfik, Ahmed 2,4
通讯作者	Elnmer, Ayat
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2019
卷号	213 页码:682-692
英文摘要	The rapid escalation in water demands for agriculture, domestic, and industry sectors requires skillful management of this limited resource. Globally, the agriculture sector is considered the main user of the water resource. Actual evapotranspiration (ETc) is an important tool in determining the water requirements of different crops. Therefore, precise estimation of the ETc is the major parameter in the water balance of arid and semi-arid agriculture regions such as Egypt. Recently, both Remote Sensing and Geographical Information Systems (GIS) become the main techniques that can be efficiently used for estimating the ETc on regional and global coverage. The main goal of this study was to estimate the daily and seasonally ETc over the Nile delta using remote sensing techniques. These techniques were Surface Energy Balance for Land (SEBAL) algorithm with 24 Landsat 8 images. Additionally, FAO-Penman-Monteith method was used to validate the derived ETc from SEBAL algorithm under the same conditions using several performance criteria to assess the performance of the SEBAL algorithm with Landsat 8 in estimating the ETc over the Nile delta. The results revealed that the SEBAL algorithm with Landsat 8 images appears to provide an acceptable estimation of the spatial and temporal distributions of ETc over the Nile delta with acceptable accuracy with R-2 = 97.83%, RMSE about 0.469 mm/day and 15.9% NRMSE. The derived ETc from SEBAL algorithm was then used to estimate the water balance and the irrigation efficiency of the study area. Results of water balance estimates revealed that most of the seasonal ETc (93%) was originally met by surface water and groundwater supplies; however, the remaining portion (7%) was particularly met by precipitation. Furthermore, the estimated irrigation efficiency was about 48.6% in the central portion of the Nile delta. Overall, the performance of the derived ETc from SEBAL algorithm compared to available ground datasets demonstrates the potential of using the SEBAL algorithm with Landsat 8 images for water use and water balance estimates within the Nile delta.
英文关键词	Actual evapotranspiration SEBAL Landsat 8 Water balance Nile delta
类型	Article
语种	英语
国家	Japan ; Egypt
收录类别	SCI-E
WOS记录号	WOS:000457952700064
WOS关键词	ENERGY BALANCE ALGORITHMS ; SEBAL MODEL ; WATER ; SOIL ; EVAPORATION ; IMAGERY
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/213998
作者单位	1.Tokyo Inst Technol, Dept Civil & Environm Engn, Meguro Ku, Tokyo 1528552, Japan; 2.E JUST, Environm Engn Dept, POB 179, Alexandria 21934, Egypt; 3.Tanta Univ, Fac Engn, Irrigat & Hydraul Engn Dept, Tanta 31734, Egypt; 4.Natl Res Ctr, Water Pollut Res Dept, Giza 12622, Egypt
推荐引用方式 GB/T 7714	Elnmer, Ayat,Khadr, Mosaad,Kanae, Shinjiro,et al. Mapping daily and seasonally evapotranspiration using remote sensing techniques over the Nile delta[J],2019,213:682-692.
APA	Elnmer, Ayat,Khadr, Mosaad,Kanae, Shinjiro,&Tawfik, Ahmed.(2019).Mapping daily and seasonally evapotranspiration using remote sensing techniques over the Nile delta.AGRICULTURAL WATER MANAGEMENT,213,682-692.
MLA	Elnmer, Ayat,et al."Mapping daily and seasonally evapotranspiration using remote sensing techniques over the Nile delta".AGRICULTURAL WATER MANAGEMENT 213(2019):682-692.