Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075238 |
The Magnitude and Origin of Groundwater Discharge to Eastern US and Gulf of Mexico Coastal Waters | |
Befus, Kevin M.1; Kroeger, Kevin D.2; Smith, Christopher G.3; Swarzenski, Peter W.4,5 | |
2017-10-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Monaco |
英文摘要 | Fresh groundwater discharge to coastal environments contributes to the physical and chemical conditions of coastal waters, but the role of coastal groundwater at regional to continental scales remains poorly defined due to diverse hydrologic conditions and the difficulty of tracking coastal groundwater flow paths through heterogeneous subsurface materials. We use three-dimensional groundwater flow models for the first time to calculate the magnitude and source areas of groundwater discharge from unconfined aquifers to coastal waterbodies along the entire eastern U.S. We find that 27.1 km(3)/yr (22.8-30.5 km(3)/yr) of groundwater directly enters eastern U.S. and Gulf of Mexico coastal waters. The contributing recharge areas comprised similar to 175,000 km(2) of U.S. land area, extending several kilometers inland. This result provides new information on the land area that can supply natural and anthropogenic constituents to coastal waters via groundwater discharge, thereby defining the subterranean domain potentially affecting coastal chemical budgets and ecosystem processes. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416761600038 |
WOS关键词 | ATCHAFALAYA RIVERS ; SUBMARINE ; NITROGEN ; FLUXES ; TRANSFORMATIONS ; BIOGEOCHEMISTRY ; MISSISSIPPI ; EXCHANGE ; SEEPAGE ; RA-226 |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/25781 |
专题 | 气候变化 |
作者单位 | 1.Univ Wyoming, Civil & Architectural Engn, Laramie, WY 82071 USA; 2.US Geol Survey, Coastal & Marine Sci Ctr, Woods Hole, MA 02543 USA; 3.US Geol Survey, Coastal & Marine Sci Ctr, St Petersburg, FL USA; 4.US Geol Survey, Pacific Coastal & Marine Sci Ctr, Santa Cruz, CA USA; 5.IAEA, Monaco, Monaco |
推荐引用方式 GB/T 7714 | Befus, Kevin M.,Kroeger, Kevin D.,Smith, Christopher G.,et al. The Magnitude and Origin of Groundwater Discharge to Eastern US and Gulf of Mexico Coastal Waters[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20). |
APA | Befus, Kevin M.,Kroeger, Kevin D.,Smith, Christopher G.,&Swarzenski, Peter W..(2017).The Magnitude and Origin of Groundwater Discharge to Eastern US and Gulf of Mexico Coastal Waters.GEOPHYSICAL RESEARCH LETTERS,44(20). |
MLA | Befus, Kevin M.,et al."The Magnitude and Origin of Groundwater Discharge to Eastern US and Gulf of Mexico Coastal Waters".GEOPHYSICAL RESEARCH LETTERS 44.20(2017). |
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