US-Oman Cooperative Research: Understanding Karstic Aquifers

0322686 Lper描述：该奖项支持佛罗里达州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David Loper博士和阿曼苏丹卡布斯大学数学和统计系Mohammed Al-Lawatia博士之间的合作研究项目。他们计划研究含水层中水和污染物的行为，方法是分析从流量计获得的流量数据，这些流量计将放置在佛罗里达州瓦库拉斯普林斯管道系统的关键位置，并将这些数据与影响流量的事件相互关联，包括潮汐、大气压力变化和最重要的向上梯度降雨。分析将使用一些统计程序和方法，包括傅立叶和小波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，并将它们与其他相关数据相互关联，如泉水分水岭内的溪流和水井的水位，将寻求更多的洞察力。统计分析的结果将为制定改进的岩溶含水层流动和运移模型提供基础。利用相关地球物理数据的统计分析和相互关系来破译岩溶含水层的行为是一种相对较新的方法。拟议的研究将扩展这一方法，并努力将其纳入地球水文学家可用的数学工具的主流范围：地下水资源的管理是一项重大的社会挑战。明智的管理必须建立在对含水层中水和污染物行为的科学理解的基础上。这一理解在大多数含水层中是很难实现的，因为它们是不均匀的。非均质性的极端出现在岩溶含水层中。岩溶含水层的原型是佛罗里达州里昂县和瓦库拉县的伍德维尔喀斯特平原。本研究将采用的统计技术有可能成为研究复杂地球物理系统的有力工具。本研究中提出的科学方法和理解将适用于其他地理区域的含水层。特别是，通过拟议的研究获得的关于岩溶系统行为的知识将使美国和阿曼的水资源管理者受益。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。该项目由国际科学与工程办公室和地球科学部资助。

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.