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DOI	10.1016/j.ejrh.2021.100956
	Geological permeability controls streamflow generation in a remote, ungauged, semi-arid drainage system
	Bourke, Sarah A.; Degens, Bradley; Searle, Josephine; Tayer, Thiaggo de Castro; Rothery, Jasmin
通讯作者	Bourke, SA (corresponding author), Univ Western Australia, Sch Earth Sci, Crawley, WA 6009, Australia. ; Bourke, SA (corresponding author), Univ Western Australia, Natl Ctr Groundwater Res & Training, Crawley, WA 6009, Australia.
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
EISSN	2214-5818
出版年	2021
卷号	38
英文摘要	Study region: A semi-arid drainage system overlying a thick (12 km) sedimentary sequence on the Dampier Peninsula in northwestern Australia. Study focus: In this study we combine aerial geophysics, geological mapping, hydrometry and hydrochemistry with aerial image analysis and stream mass balance modeling to delineate the key hydrogeological structures and processes that control streamflow generation within a remote ungauged semi-arid watershed. New hydrological insights for the region: Four distinct processes of streamflow generation were identified, each dependent on the spatial distribution of lithological permeability; (1) ephemeral rainfall runoff over low-permeability surface lithologies, (2) intermittent flow generated by seasonal groundwater discharge from the unconfined aquifer above a newly mapped clay layer, (3) persistent flow from contact springs via interbedded high- and low-permeability layers, and (4) perennial flow associated with regional groundwater discharge at headwater springs. This study highlights the importance of geological permeability and the resultant hydrogeological processes as controls on streamflow generation, particularly in low-relief and arid regions where topography is less likely to determine the distribution of streamflow.
英文关键词	Ephemeral stream Intermittent river Non-perennial streams Spring mechanisms Surface water-groundwater interaction
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:000725664100003
WOS关键词	GROUNDWATER DISCHARGE ; IMAGE-ANALYSIS ; WATER ; RIVER ; RECHARGE ; FLOW ; CONTRACTION ; HYDROLOGY ; EXPANSION ; CLASSIFICATION
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374036
作者单位	[Bourke, Sarah A.; Rothery, Jasmin] Univ Western Australia, Sch Earth Sci, Crawley, WA 6009, Australia; [Bourke, Sarah A.; Rothery, Jasmin] Univ Western Australia, Natl Ctr Groundwater Res & Training, Crawley, WA 6009, Australia; [Degens, Bradley; Searle, Josephine] Dept Water & Environm Regulat, Joondalup, WA 6027, Australia; [Tayer, Thiaggo de Castro] Univ Western Australia, Sch Biol Sci, Crawley, WA 6009, Australia
推荐引用方式 GB/T 7714	Bourke, Sarah A.,Degens, Bradley,Searle, Josephine,et al. Geological permeability controls streamflow generation in a remote, ungauged, semi-arid drainage system[J],2021,38.
APA	Bourke, Sarah A.,Degens, Bradley,Searle, Josephine,Tayer, Thiaggo de Castro,&Rothery, Jasmin.(2021).Geological permeability controls streamflow generation in a remote, ungauged, semi-arid drainage system.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,38.
MLA	Bourke, Sarah A.,et al."Geological permeability controls streamflow generation in a remote, ungauged, semi-arid drainage system".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 38(2021).