RPG: Passive Margin Fresh Water Fluxes to the Oceans

RPG：被动边际淡水流入海洋

• 批准号: 9628245
• 负责人: Anne Carey
• 金额: $ 1.8万
• 依托单位: University of Alabama Tuscaloosa
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9628245&HistoricalAwards=false
• 关键词: RPG; Passive; Margin; Fresh; Water

9628245 Carey The P.I. will model sea water intrusion in southern Baldwin County, Alabama. This study necessarily requires a region where there are sufficient data for model inputs. Baldwin County is a rapidly growing region of the Gulf Coast and like many coastal areas, relies primarily on groundwater as its source of potable water. Because of the importance of groundwater to this region, there has been a wealth of data collected. Available data include well water levels, water chemistry, pumping rates and surveys of water uses. Other data available include aquifer parameters like hydraulic conductivity. A calibrated seawater intrusion model of southern Baldwin county will be used in an inverse manner to determine the flux of fresh water flowing through the system and escaping to the ocean. The Alabama Gulf Coast is a region typical of the earth's passive continental margins. Many of the estuarine deposits which were formed during sequential incising and excising of the coast during sea level rise and lowering have been preserved as hard bottom deposits here. This initially local study will provide insight into much of the world's passive continental margins and the fresh groundwater fluxes onto them.

小行星9628245 私家侦探将模拟亚拉巴马州鲍德温县南部的海水入侵。 这项研究必然需要一个有足够数据作为模型投入的区域。 鲍德温县是墨西哥湾沿岸一个快速发展的地区，与许多沿海地区一样，主要依赖地下水作为饮用水来源。 由于地下水对这一地区的重要性，已经收集了大量的数据。 现有数据包括井水水位、水化学、抽水率和用水调查。 其他可用数据包括含水层参数，如水力传导率。 鲍德温县南部的校准海水入侵模型将以逆向方式用于确定流过系统并逃逸到海洋的淡水通量。 亚拉巴马墨西哥湾沿岸是地球被动大陆边缘的典型地区。 许多河口沉积物是在海平面上升和下降过程中连续切割和切除海岸时形成的，在这里被保存为硬底沉积物。 这项最初是在当地进行的研究将使人们深入了解世界上大部分被动大陆边以及流入这些大陆边的淡水。