US-Oman Cooperative Research: Understanding Karstic Aquifers

美国-阿曼合作研究：了解喀斯特含水层

• 批准号: 0322686
• 负责人: David Loper
• 金额: $ 3.07万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-08-15 至 2006-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0322686&HistoricalAwards=false
• 关键词: US; Oman; Cooperative; Research; Understanding

0322686 LoperDescription: This award supports a cooperative research project between Dr. David Loper, Geophysical Fluid Dynamics Institute at Florida State University, Tallahassee, Florida and Dr. Mohammed Al-Lawatia, Department of Mathematics and Statistics, Sultan Qaboos University, Al-Khodh, Oman. They plan to study the behavior of water and pollutants in aquifers by analyzing data on flow rates obtained from flow meters to be placed at strategic locations within the conduit system of Wakulla Springs, Florida and by cross-correlating this data with events which affect the flow, including tides, atmospheric pressure variations and, most importantly, up-gradient rainfall. The analyses will employ a number of statistical procedures and methods, including Fourier and wavelet spectrum analyses and dynamic-regression and non-parametric models. Additional insight will be sought by analyzing variations of flow, temperature and electrical conductivity at those locations in the spring and cross-correlating them with other relevant data such as water levels in streams and wells within the watershed of the spring. The results of the statistical analyses will provide the basis for the development of improved models of flow and transport in karstic aquifers. The use of statistical analyses and cross-correlations of relevant geophysical data to decipher the behavior of karstic aquifers is a relatively new approach. The proposed study will expand on this approach and endeavor to bring it into the mainstream of mathematical tools available to geohydrologists Scope: The management of underground water resources is a major societal challenge. Wise management must be based on sound scientific understanding of the behavior of water and pollutants in aquifers. This understanding is difficult to achieve in most aquifers because they are inhomogeneous. The extreme of inhomogeneity occurs in karstic aquifers. A prototype of a karstic aquifer is the Woodville Karst Plain in Leon and Wakulla Counties of Florida. The statistical techniques to be employed in this study have the potential to be powerful tools with which to study complex geophysical systems. The scientific methodologies and understanding developed in this study will be applicable to aquifers in other geographical regions. In particular, the knowledge of the behavior of karstic systems gained by the proposed study will benefit water managers in both the United States and Oman. The two scientists have complementary skills. They will exchange data and results applicable to the two countries. This project is funded by the Office of International Science and Engineering and the Division of Earth Sciences.

0322686 Loper描述：该奖项支持佛罗里达塔拉哈西佛罗里达州立大学地球物理流体动力学研究所的大卫·洛珀博士和阿曼Al-Khodh苏丹卡布斯大学数学和统计系的Mohammed Al-Lawatia博士之间的合作研究项目。 他们计划研究含水层中的水和污染物的行为，方法是分析放置在佛罗里达Wakulla Springs管道系统战略位置的流量计获得的流量数据，并将这些数据与影响流量的事件（包括潮汐、大气压力变化以及最重要的向上梯度降雨）相互关联。 分析将采用若干统计程序和方法，包括傅立叶和小波频谱分析以及动态回归和非参数模型。 通过分析泉水中这些位置的流量、温度和电导率的变化，并将它们与泉水分水岭内的溪流和威尔斯井的水位等其他相关数据相互关联，将寻求更多的见解。 统计分析的结果将为改进岩溶含水层的水流和运输模型提供基础。 利用相关地球物理数据的统计分析和互相关来解释岩溶含水层的行为是一种相对较新的方法。 拟议的研究将扩大这种方法，并奋进将其纳入主流的数学工具提供给地质水文学范围：地下水资源的管理是一个重大的社会挑战。 明智的管理必须基于对含水层中水和污染物行为的正确科学理解。 在大多数含水层中很难做到这一点，因为含水层是不均匀的。 岩溶含水层的非均质性最强。 岩溶含水层的一个原型是佛罗里达莱昂县和瓦库拉县的伍德维尔岩溶平原。 在这项研究中使用的统计技术有可能成为研究复杂地球物理系统的强大工具。 本研究中形成的科学方法和认识将适用于其他地理区域的含水层。 特别是，所提出的研究获得的岩溶系统的行为的知识将有利于水管理人员在美国和阿曼。 这两位科学家有互补的技能。 他们将交换适用于两国的数据和结果。 该项目由国际科学和工程处以及地球科学司资助。