Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016WR019839 |
Identifying modern and historic recharge events from tracer-derived groundwater age distributions | |
McCallum, James L.1,2; Cook, Peter. G.1,2; Dogramaci, Shawan3,4; Purtschert, Roland5; Simmons, Craig T.1,2; Burk, Lawrence1 | |
2017-02-01 | |
发表期刊 | WATER RESOURCES RESEARCH |
ISSN | 0043-1397 |
EISSN | 1944-7973 |
出版年 | 2017 |
卷号 | 53期号:2 |
文章类型 | Article |
语种 | 英语 |
国家 | Australia; Switzerland |
英文摘要 | Understanding groundwater ages offers insight into the time scales of recharge, aquifer storage turnover times, and contaminant protection time frames. The ability to quantify groundwater age distributions heavily depends on the choice of the interpretive model, and often important features of the age distribution cannot be identified with the subset of available models. In this paper, we implemented a multiple tracer method using a technique that assumes limited details regarding the shape of the age distribution and applied it to dewatering wells at a mine site in the Pilbara region of north-western Australia. Using our method, we were able to identify distinct age components in the groundwater. We calculated the presence of four distinct age groups in the samples. All wells contained water aged between zero and 20 years. However, the rest of the samples were composed of water between 50 and 100 years, 100 and 600 years, or water approximately 1000 years old. These were consistent with local recharge sources (50-100 years) and knowledge of paleoclimate from lake sediment records. We found that although the age components were well constrained, the relative proportions of each component were highly sensitive to errors of environmental tracer data. Our results show that our method can identify distinct age groups in groundwater samples without prior knowledge of the age distribution. The presence of distinct recharge times gives insight into groundwater flow conditions over long periods of time. |
英文关键词 | groundwater age environmental tracers Pilbara region |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000398568800004 |
WOS关键词 | SUBTROPICAL NORTHWEST AUSTRALIA ; TIME DISTRIBUTIONS ; ENVIRONMENTAL TRACERS ; HYDROLOGIC SYSTEMS ; DIRECT SIMULATION ; OLD GROUNDWATER ; RESIDENCE TIME ; SUPPLY WELL ; TRANSPORT ; WATER |
WOS类目 | Environmental Sciences ; Limnology ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21874 |
专题 | 资源环境科学 |
作者单位 | 1.Flinders Univ S Australia, Sch Environm, Adelaide, SA, Australia; 2.Flinders Univ S Australia, Natl Ctr Groundwater Res & Training, Adelaide, SA, Australia; 3.Rio Tinto Iron Ore, Perth, WA, Australia; 4.Univ Western Australia, Sch Plant Biol, Ecosyst Res Grp, Crawley, WA, Australia; 5.Univ Bern, Inst Phys, Climate & Environm Phys Div, Bern, Switzerland |
推荐引用方式 GB/T 7714 | McCallum, James L.,Cook, Peter. G.,Dogramaci, Shawan,et al. Identifying modern and historic recharge events from tracer-derived groundwater age distributions[J]. WATER RESOURCES RESEARCH,2017,53(2). |
APA | McCallum, James L.,Cook, Peter. G.,Dogramaci, Shawan,Purtschert, Roland,Simmons, Craig T.,&Burk, Lawrence.(2017).Identifying modern and historic recharge events from tracer-derived groundwater age distributions.WATER RESOURCES RESEARCH,53(2). |
MLA | McCallum, James L.,et al."Identifying modern and historic recharge events from tracer-derived groundwater age distributions".WATER RESOURCES RESEARCH 53.2(2017). |
条目包含的文件 | 条目无相关文件。 |
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