Collaborative Research: Groundwater Dynamics of a Barrier Island
合作研究:障壁岛地下水动力学
基本信息
- 批准号:0711301
- 负责人:
- 金额:$ 37.41万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-09-01 至 2012-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Coastal groundwater is a crucial resource for potable water supply and the functioning of ecosystems on both sides of the land/ocean interface. In spite of the global importance of this resource, controls on groundwater dynamics and biogeochemical cycling in coastal settings are poorly understood. Multiple processes drive fresh and saline groundwater flow and mixing at the coastline; the relative roles of these processes are unclear. This project is designed to quantify groundwater flow and chemical exchange at the coastal interface under varying weather and tide conditions. Our primary hypothesis is that brief, high-energy storm events have a major impact on chemical exchange between permeable subterranean sediments and the coastal ocean. A barrier island will serve as a field site because the same complex, transient flow processes operate in a barrier island as on the mainland coast, but at a greatly reduced scale. Barrier islands also stand alone as important and increasingly developed components of the coastline. Piezometers will be installed on Sapelo Island, Georgia, to monitor groundwater hydraulic head, temperature, salinity, radium isotope tracers, and associated biogeochemistry. Numerical models of variable-density fluid flow, heat transport, and solute transport will be developed to aid interpretation of thermal and geochemical data and to quantify fluid flow patterns and rates associated with competing flow processes. This work has immediate implications for contaminant transport in developed settings, saltwater intrusion into coastal aquifers, and ecosystem functions in settings such as salt marshes and coastal fisheries. Knowledge of coastal groundwater dynamics is also critical for understanding the impact of sea level rise and changes in storm frequency associated with climate change. This work complements ongoing work at the Sapelo Island LTER. The project will train at least two graduate students and three undergraduates in fieldwork and scientific research, and the project will coordinate with such programs as the South Carolina Alliance for Minority Participation (SCAMP) and the Center for Ocean Sciences Education Excellence for the southeast (COSEE-SE).
沿海地下水是饮用水供应和陆地/海洋界面两侧生态系统运作的关键资源。尽管这一资源的全球重要性,控制地下水动力学和海洋地球化学循环在沿海环境知之甚少。多个过程驱动淡水和盐水在海岸线的流动和混合;这些过程的相对作用尚不清楚。该项目旨在量化不同天气和潮汐条件下沿海界面的地下水流和化学交换。我们的主要假设是,短暂的,高能量的风暴事件有一个渗透性的地下沉积物和沿海海洋之间的化学交换的重大影响。屏障岛将作为现场,因为屏障岛上与大陆海岸上存在相同的复杂、瞬时流动过程,但规模大大缩小。屏障岛屿也是海岸线上重要的、日益发达的组成部分。将在格鲁吉亚的萨佩洛岛安装压力计,以监测地下水水头、温度、盐度、镭同位素示踪剂和相关的地球化学。将开发变密度流体流动、热传输和溶质传输的数值模型,以帮助解释热和地球化学数据,并量化与竞争流动过程相关的流体流动模式和速率。这项工作对发达环境中的污染物迁移、盐水侵入沿海含水层以及作为盐沼泽和沿海渔业等环境中的生态系统功能具有直接影响。了解沿海地下水动态对于了解海平面上升的影响以及与气候变化相关的风暴频率变化也至关重要。这项工作补充了在萨佩洛岛LTER正在进行的工作。该项目将在实地考察和科学研究方面培训至少两名研究生和三名本科生,该项目将与南卡罗来纳州少数民族参与联盟(SCAMP)和东南部海洋科学教育卓越中心(COSEE-SE)等项目协调。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Alicia Wilson其他文献
The Role of Social Workers in Spiritual Care to Facilitate Coping With Chronic Illness and Self-Determination in Advance Care Planning
社会工作者在精神护理中的作用,以促进应对慢性疾病和预先护理计划中的自我决定
- DOI:
10.1080/19371918.2016.1146199 - 发表时间:
2016 - 期刊:
- 影响因子:2.5
- 作者:
R. Francoeur;Nancy Burke;Alicia Wilson - 通讯作者:
Alicia Wilson
Association Report
- DOI:
10.1016/s1086-5802(16)30382-5 - 发表时间:
1998-09-01 - 期刊:
- 影响因子:
- 作者:
Tom English;Susan Winckler;Tina L. Pugliese;Richard J. Bertin;Ed Hamilton;Alicia Wilson;Kali Spencer - 通讯作者:
Kali Spencer
A Novel Protocol for Reducing Intensive Care Utilization After Craniotomy.
减少开颅手术后重症监护利用率的新方案。
- DOI:
10.1093/neuros/nyab187 - 发表时间:
2021 - 期刊:
- 影响因子:4.8
- 作者:
A. Pendharkar;Maryam N. Shahin;Sohun Awsare;Allen L. Ho;Christine Wachira;Johnathan Clevinger;Sveinn Sigurdsson;Yohan Lee;Alicia Wilson;A. Lu;M. Gephart - 通讯作者:
M. Gephart
Alicia Wilson的其他文献
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{{ truncateString('Alicia Wilson', 18)}}的其他基金
Fluid and chemical fluxes across the seafloor of a passive margin
被动边缘海底的流体和化学通量
- 批准号:
1316250 - 财政年份:2013
- 资助金额:
$ 37.41万 - 项目类别:
Continuing Grant
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