干旱区生态环境知识资源中心(Arid): Estimation of hydraulic conductivity in fractured crystalline aquifers using remote sensing and field data analyses: An example from Wadi Nasab area, South Sinai, Egypt

Arid

DOI	10.1007/s12040-020-01470-5
	Estimation of hydraulic conductivity in fractured crystalline aquifers using remote sensing and field data analyses: An example from Wadi Nasab area, South Sinai, Egypt
	El-Rayes, Ahmed; Omran, Adel; Geriesh, Mohamed; Hochschild, Volker
通讯作者	El-Rayes, A
来源期刊	JOURNAL OF EARTH SYSTEM SCIENCE
ISSN	2347-4327
EISSN	0973-774X
出版年	2020
卷号	129 期号:1
英文摘要	Fractured crystalline aquifer is considered as the main source of water supply in most of the arid and semi-arid regions. Fractures play an essential role as pathways through which groundwater flows from high catchments to supply the productive wells in lowlands. The hydraulic conductivity measurements for highly fractured crystalline aquifers are a must for optimal management of groundwater extraction from these aquifers. The current work aims at estimating the hydraulic conductivity of the crystalline aquifer by using an unconventional approach based entirely on the processing of remotely-sensed lineament data and field observations. Extracted lineaments at four sites near the productive wells along Wadi Nasab area (WNA) were traced from Landsat (ETM+7) and other ancillary geological data by using image processing and GIS tools. Hence, four discrete fracture networks (DFN) were designed and practiced for the selected test sites to model the groundwater flow through the fracture system in order to estimate the hydraulic conductivity of the investigated crystalline aquifer. The achieved results indicated that the hydraulic conductivity of fractured basement aquifer of WNA varied between 2.3 x 10(-7)and 6.1 x 10(-7)m/s. The estimated hydraulic conductivity values are close to the values of previous field infiltration tests in the nearby area at Sinai. The previously estimated infiltration rates (expressing the vertical hydraulic conductivity) on the fractured crystalline outcrops ranged between 2.6 x 10(-6)and 6.5 x 10(-7)m/s, which are concordant with achieved results. Moreover, the achieved values match the previously published values of hydraulic conductivity for similar crystalline aquifers around the world, reflecting the high validity of the used unconventional, low-cost approach to estimate the hydraulic conductivity of fractured crystalline aquifers. The designed approach can be potentially practiced on similar basins in Sinai peninsula and other comparable basins having similar geological and climatic environments around the world.
英文关键词	Hydraulic conductivity crystalline aquifers remote sensing fracture networks groundwater flow model Sinai
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000576301900002
WOS关键词	SATELLITE IMAGES ; FAULT ZONE ; INTEGRATED APPROACH ; LINEAMENT ANALYSIS ; SYSTEMS ; FLOW ; GIS ; EXTRACTION ; FEATURES ; REGION
WOS类目	Geosciences, Multidisciplinary ; Multidisciplinary Sciences
WOS研究方向	Geology ; Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326682
作者单位	[El-Rayes, Ahmed; Geriesh, Mohamed] Suez Canal Univ, Geol Dept, Fac Sci, Ismailia 41522, Egypt; [Omran, Adel] Suez Univ, Fac Petr & Min Engn, Sci & Math Dept, Suez, Egypt; [Omran, Adel; Hochschild, Volker] Tubingen Univ, Dept Geog, Rumelinstr 19-23, Tubingen, Germany
推荐引用方式 GB/T 7714	El-Rayes, Ahmed,Omran, Adel,Geriesh, Mohamed,et al. Estimation of hydraulic conductivity in fractured crystalline aquifers using remote sensing and field data analyses: An example from Wadi Nasab area, South Sinai, Egypt[J],2020,129(1).
APA	El-Rayes, Ahmed,Omran, Adel,Geriesh, Mohamed,&Hochschild, Volker.(2020).Estimation of hydraulic conductivity in fractured crystalline aquifers using remote sensing and field data analyses: An example from Wadi Nasab area, South Sinai, Egypt.JOURNAL OF EARTH SYSTEM SCIENCE,129(1).
MLA	El-Rayes, Ahmed,et al."Estimation of hydraulic conductivity in fractured crystalline aquifers using remote sensing and field data analyses: An example from Wadi Nasab area, South Sinai, Egypt".JOURNAL OF EARTH SYSTEM SCIENCE 129.1(2020).