干旱区生态环境知识资源中心(Arid): Identifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approach

Arid

DOI	10.5194/hess-24-4353-2020
	Identifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approach
	Flinchum, Brady A.; Banks, Eddie; Hatch, Michael; Batelaan, Okke; Peeters, Luk J. M.; Pasquet, Sylvain
通讯作者	Flinchum, BA
来源期刊	HYDROLOGY AND EARTH SYSTEM SCIENCES
ISSN	1027-5606
EISSN	1607-7938
出版年	2020
卷号	24 期号:9 页码:4353-4368
英文摘要	Identifying and quantifying recharge processes linked to ephemeral surface water features is challenging due to their episodic nature. We use a combination of well-established near-surface geophysical methods to provide evidence of a surface and groundwater connection under a small ephemeral recharge feature in a flat, semi-arid region near Adelaide, Australia. We use a seismic survey to obtain P-wave velocity through travel-time tomography and S-wave velocity through the multichannel analysis of surface waves. The ratios between P-wave and S-wave velocities are used to calculate Poisson's ratio, which allow us to infer the position of the water table. Separate geophysical surveys were used to obtain electrical conductivity measurements from time-domain electromagnetics and water contents from down-hole nuclear magnetic resonance. The geophysical observations provide evidence to support a groundwater mound underneath a subtle ephemeral surface water feature. Our results suggest that recharge is localized and that small-scale ephemeral features may play an important role in groundwater recharge. Furthermore, we show that a combined geophysical approach can provide a perspective that helps shape the hydrogeological conceptualization of a semi-arid region.
类型	Article
语种	英语
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000571409200001
WOS关键词	ELECTRICAL-RESISTIVITY TOMOGRAPHY ; GROUNDWATER RECHARGE ; SEISMIC-REFRACTION ; WATER-TABLE ; CRITICAL ZONE ; POISSONS RATIO ; MOUNTAIN-FRONT ; SURFACE-WATER ; FLOOD WATER ; INFILTRATION
WOS类目	Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Geology ; Water Resources
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326404
作者单位	[Flinchum, Brady A.; Peeters, Luk J. M.] Commonwealth Sci Ind Res Org CSIRO, Deep Earth Imaging Future Sci Platform & Land & W, Urrbrae 5064, Australia; [Banks, Eddie; Hatch, Michael; Batelaan, Okke] Flinders Univ S Australia, Coll Sci & Engn, Natl Ctr Groundwater Res & Training, Adelaide, SA 5001, Australia; [Hatch, Michael] Univ Adelaide, Sch Phys, Dept Geosci, Adelaide, SA, Australia; [Pasquet, Sylvain] Univ Paris, Inst Phys Globe Paris, CNRS, F-75005 Paris, France
推荐引用方式 GB/T 7714	Flinchum, Brady A.,Banks, Eddie,Hatch, Michael,et al. Identifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approach[J]. Commonwealth Scientific and Industrial Research Organisation,2020,24(9):4353-4368.
APA	Flinchum, Brady A.,Banks, Eddie,Hatch, Michael,Batelaan, Okke,Peeters, Luk J. M.,&Pasquet, Sylvain.(2020).Identifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approach.HYDROLOGY AND EARTH SYSTEM SCIENCES,24(9),4353-4368.
MLA	Flinchum, Brady A.,et al."Identifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approach".HYDROLOGY AND EARTH SYSTEM SCIENCES 24.9(2020):4353-4368.