Oil spill transport modeling in shelf, estuary, and intracoastal regions

陆架、河口和沿海地区的溢油输送模型

• 批准号: 1045151
• 负责人: Ethan Kubatko
• 金额: $ 13.77万
• 依托单位: Ohio State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1045151&HistoricalAwards=false
• 关键词: Oil; spill; transport; modeling; shelf

The main goal of this research is to further develop, apply, and analyze a computational tool that can be used to examine the transport tendencies along the U.S. East Coast including Florida, Georgia, and both Carolinas as they relate to the Deepwater Horizon oil spill. The central piece of this computational tool will be the Advanced Circulation (ADCIRC) hydrodynamic model. ADCIRC is a finite element model for solving time?dependent, free surface circulation and transport problems in two? and three?dimensions. Existing finite element meshes of the region will be further developed to provide an unprecedented level of resolution and physical detail, including detailed coverage of coastal rivers and lagoons, tidal creeks, the Atlantic Intracoastal Waterway, and tidally flooded marshes. The ability to accurately simulate the tidal dynamics of this region, as well as hurricane storm surge, will be coupled with recent and ongoing development of the transport capabilities of the ADCIRC model using discontinuous Galerkin methods. The integration and further development of these three key components, i.e., the high-resolution finite element meshes, the ability to accurately simulate tidal and storm surge dynamics, and robust, mass-conserving transport algorithms, will provide a powerful computational tool that will be used to simulate the transport tendencies of the Deepwater Horizon oil spill along the U.S. East Coast.The Deepwater Horizon oil spill began on April 20, 2010 as a result of an oil well blowout that caused an explosion on the Deepwater Horizon offshore drilling platform located forty miles southeast off the Louisiana coast. A major and immediate concern related to the Deepwater Horizon oil spill is the possibility of the oil slick reaching the Loop Current ? a warm ocean current that enters the Gulf of Mexico flowing northward through the Yucatan Strait and that exits flowing east through the Florida Straits continuing northward along the east coast of Florida as the Gulf Stream. Oil entering the Loop Current would eventually be transported far afield to the Atlantic Ocean where the presence of large-scale eddies that separate from the western edge of the Gulf Stream have the potential to carry oil toward the U.S. East Coast. There is additional concern regarding the transport of oil that may occur during the upcoming Atlantic Hurricane Season, which has been forecasted by NOAA to be an ?active to extremely active? hurricane season. The transport of oil towards the U.S. East Coast ? by means of reaching the Loop Current or from the onset of a hurricane ? would obviously have a major detrimental impact on the coastal environment, severely damaging their beaches and coastal wetlands, which serve as critical habitats to the fish and wildlife. The primary objective of this proposal is to provide a computational tool that will be used to help analyze and assess possible damage from the Deepwater Horizon oil spill along the U.S. East Coast including Florida, Georgia, and both Carolinas.Specifically, the fate and transport of oil spill remnants (e.g., tarballs) entrained in Gulf Stream eddies and feeding the U.S. East Coast will be modeled along the shelf and into the Atlantic Intracoastal Waterway and estuarine systems. Using available data sources, simulations will be performed to ultimately identify areas especially susceptible to receiving transported oil and likely areas of deposition. The model and results will also be transferable to other regions of the Gulf of Mexico.

这项研究的主要目的是进一步开发，应用和分析一种计算工具，该工具可用于检查与深水地平线溢油有关的美国东海岸的运输趋势，包括佛罗里达州，佐治亚州和卡罗来纳州。该计算工具的中心部分将是高级循环（ADCIRC）流体动力模型。 ADCIRC是解决时间的有限元模型吗？依赖性，自由表面循环和两者中的传输问题？和三个维度。该地区的现有有限元网格将进一步开发，以提供前所未有的分辨率和物理细节水平，包括沿海河流和泻湖的详细覆盖范围，潮汐小溪，大西洋河流内水道以及潮汐泛滥的元帅。使用不连续的Galerkin方法，准确模拟该区域的潮汐动力学以及飓风风暴潮的能力以及近期和正在进行的ADCIRC模型传输能力的发展。这三个关键组成部分（即高分辨率有限元融合在一起）的整合和进一步发展，准确模拟潮汐和风暴潮动态的能力以及强大的，强大的大规模运输运输算法的能力，将提供一个强大的计算工具，将提供一个强大的计算工具，该工具将用于沿着Appil of the Use oper oper the Use opers opers opers opers opers opers opers opers opers oppil the Use spill。井喷良好，在路易斯安那州海岸东南40英里处的深水地平线海上钻井平台上爆炸。与Deepwater Horizo​​n漏油有关的主要且直接关注的关注点是否可能使油脂滑入环电流？进入墨西哥湾的温暖海流，穿过尤卡坦海峡向北流动，并从佛罗里达海峡向东流出，沿着佛罗里达州东海岸向北延伸，当时海湾溪流。进入循环电流的石油最终将被运送到大西洋，那里有与海湾河西部边缘分开的大规模涡流的存在有可能向美国东海岸运送石油。关于即将到来的大西洋飓风季节可能发生的石油运输还有其他问题，NOAA预计将是“活跃至极度活跃”的人吗？飓风季节。石油向美国东海岸的运输？通过达到循环电流或从飓风开始时？显然，会对沿海环境产生重大不利影响，严重破坏其海滩和沿海湿地，这是鱼类和野生动植物的关键栖息地。 The primary objective of this proposal is to provide a computational tool that will be used to help analyze and assess possible damage from the Deepwater Horizo​​n oil spill along the U.S. East Coast including Florida, Georgia, and both Carolinas.Specifically, the fate and transport of oil spill remnants (e.g., tarballs) entrained in Gulf Stream eddies and feeding the U.S. East Coast will be modeled along the shelf and into the Atlantic Intracoastal水路和河口系统。使用可用的数据源，将进行模拟，以最终确定特别容易接收运输的油和可能沉积区域的区域。 该模型和结果也将转移到墨西哥湾的其他地区。