globalchange  > 气候变化与战略
DOI: 10.5194/hess-24-4353-2020
论文题名:
Identifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approach
作者: Flinchum B.A.; Banks E.; Hatch M.; Batelaan O.; Peeters L.J.M.; Pasquet S.
刊名: Hydrology and Earth System Sciences
ISSN: 1027-5606
出版年: 2020
卷: 24, 期:9
起始页码: 4353
结束页码: 4368
语种: 英语
Scopus关键词: Acoustic wave velocity ; Arid regions ; Geological surveys ; Geophysics ; Seismic waves ; Shear waves ; Surface waters ; Surface waves ; Time domain analysis ; Wave propagation ; Electrical conductivity measurements ; Geophysical methods ; Geophysical observations ; Geophysical surveys ; Ground water recharge ; Multi-channel analysis of surface waves ; Time domain electromagnetics ; Travel time tomography ; Recharging (underground waters) ; electrical conductivity ; ephemeral stream ; geophysical survey ; groundwater flow ; groundwater-surface water interaction ; recharge ; seismic data ; semiarid region ; wave velocity
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 downhole 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. © 2020 Author(s).
Citation statistics:
被引频次[WOS]:6   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/162603
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Flinchum, B.A., Commonwealth Scientific Industrial Research Organization (CSIRO), Deep Earth Imaging Future Science Platformĝ€¯and Land and Water, Urrbrae, 5064, Australia; Banks, E., National Centre for Groundwater Research and Training, College of Science and Engineering, Flinders University, Adelaide, 5001, Australia; Hatch, M., National Centre for Groundwater Research and Training, College of Science and Engineering, Flinders University, Adelaide, 5001, Australia, Department of Geosciences, School of Physics, University of Adelaide, Adelaide, Australia; Batelaan, O., National Centre for Groundwater Research and Training, College of Science and Engineering, Flinders University, Adelaide, 5001, Australia; Peeters, L.J.M., Commonwealth Scientific Industrial Research Organization (CSIRO), Deep Earth Imaging Future Science Platformĝ€¯and Land and Water, Urrbrae, 5064, Australia; Pasquet, S., Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris, 75005, France

Recommended Citation:
Flinchum B.A.,Banks E.,Hatch M.,et al. Identifying recharge under subtle ephemeral features in a flat-lying semi-arid region using a combined geophysical approach[J]. Hydrology and Earth System Sciences,2020-01-01,24(9)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Flinchum B.A.]'s Articles
[Banks E.]'s Articles
[Hatch M.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Flinchum B.A.]'s Articles
[Banks E.]'s Articles
[Hatch M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Flinchum B.A.]‘s Articles
[Banks E.]‘s Articles
[Hatch M.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.