The 4th International Ra-Rn Workshop June 3-8, 2012

该奖项提供给罗德岛大学的资金将为第四届国际镭和氡研讨会提供部分资金，这是正在进行的一系列国际研讨会的最新一期，专门讨论在环境中作为示踪剂的镭（Ra）同位素和氡（Rn）的应用和测量方面的发展和新方向。镭和氡同位素的精确测量和建模非常重要，因为它们已成为确定海底地下水流入海洋的通量、沿海水域混合速率、水在河口停留时间以及地表水和地下水之间相互作用的日益重要的工具。讲习班将为越来越多的科学家提供一个重要论坛，讨论与测量镭-223、镭-224、镭-226、镭-228、氡-220和氡-222有关的好处和挑战，以及将结果应用于环境问题的模型。先前在摩纳哥、威尼斯和耶路撒冷举行的Ra-Rn讲习班（如下所列）已经确定了与Ra和Rn在水生系统中的应用和准确测量有关的一些问题。正如本次研讨会所提议的那样，与更广泛的科学界进行讨论将大大有利于这些问题和其他问题。更广泛的影响：研讨会将提供及时和宝贵的机会，继续就Ra和Rn示踪剂的应用进行讨论，提供科学和规划更新，并促进国际合作。在提交提案时，来自15个国家的54名与会者已登记参加讲习班。提议的传播会议结果的机制包括在EOS、AGU/ASLO特别会议上发表一篇简短的摘要文章，以及在共同商定的顶级科学期刊上发表同行评议出版物的特刊。以这些方式传播会议结果将使更广泛的科学界，包括学生和早期职业科学家了解最新的发展。

Funds from this award to the University of Rhode Island will provide partial funding for the Fourth International Radium and Radon Workshop, the latest in an ongoing international workshop series devoted to developments and new directions in the application and measurement of radium (Ra) isotopes and radon (Rn) as tracers in the environment. The accurate measurement and modeling of radium and radon isotopes is important because they have become increasingly important tools for determining fluxes of submarine groundwater discharge (SGD) into the ocean, rates of mixing of coastal waters, residence times of water in estuaries, and interactions between surface water and groundwater. The workshop will provide an important forum for a growing community of scientists to discuss the benefits and challenges associated with the measurement of radium-223 , radium-224, radium-226, radium-228, radon-220, and radon-222 , as well as models used to apply the results to environmental problems. Prior Ra-Rn workshops held in Monaco, Venice, and Jerusalem (listed below) have identified a number of issues related to the application and accurate measurement of Ra and Rn in aquatic systems. These and other issues would greatly benefit from discussions with the broader scientific community, as proposed for this workshop. Broader Impacts: The workshop would provide a timely and valuable opportunity to continue to develop discussions on the application of Ra and Rn tracers, provide scientific and programmatic updates, and foster international collaboration. At the time of the proposal submission, 54 participants from 15 countries had registered for the workshop. Proposed mechanisms to disseminate the meeting results include a short synopsis article in EOS, AGU/ASLO special session(s), and a special issue of peer-review publications to be published in a collegially agreed-upon top scientific journal. Dissemination of the meeting results in these ways would inform the broader scientific community, including students and early career scientists, of the latest developments.