CDI Type-II: Distributed Ocean Monitoring via Integrated Data Analysis of Coordinated Buoyancy Drogues

CDI Type-II：通过协调浮力锥套的综合数据分析进行分布式海洋监测

• 批准号: 0941692
• 负责人: Jorge Cortes
• 金额: $ 135.9万
• 依托单位: University of California-San Diego
• 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: 2010-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0941692&HistoricalAwards=false
• 关键词: CDI; Type; II; Distributed; Ocean

An unanswered need in oceanography is to sample the ocean at higher-resolution spatial and temporal scales than presently possible. Although current systems have led tomany important discoveries, oceanographers would agree that many fundamental processes are presently unobservable due to the sparseness of the sampling geometries. Examples include the estimation of subsurface particle trajectories for ascertaining sewer effluents, the measurement of horizontal and vertical diffusivity, and the submesoscale vorticity and vertical excursions of isopycnals. These examples require versatile, quasi-Lagrangian sensors that profit fromthe same interactions generated by ocean circulation that the oceanographic ecosystemrelies on. We propose an original oceanographic observatory system based on small, inexpensive, buoyancy con- trolled drogues capable of scientific data analysis and coordinated motion control within the shear layers of the ocean circulation to monitor flows of nutrients, behaviors of animals, coastal circulation, and pol- lution dispersion.The PI's propose to developdistributed, Lagrangian sensing systems that can both track currents and sense the environment has never been approached or accomplished. The proposed ocean sampling mobile sensor network pose exciting research challenges that go well beyond any particular discipline, as they require the integration of the sensing and control aspects of the drogues with the data processing and computational analysis tailored to the specific ocean applications. Deployed over coastal areas of tens of kilometers, small armies of such drogues will concurrently map currents and sense the environment. Such vehicle swarms offer the opportunity to sample oceanic processes on space-time scales that were heretofore unobtainable while being transported at low Reynolds numbers. Since individual drogues are not tracked underwater and only relay sensed information when they are at the surface, our proposed observatory system requires minimal supporting infrastructure. With the computational tools and algorithms developed under this project, the drogues would be built at a fraction of the cost of current ocean sensor technologies.Broader ImpactsThe investigators propose outreach through high schools, community workshops, and a science festival. The investigators mention a focus on diversity. Successful development and deployment of the technology will have substantial impact of high social relevance, and the connections with the California Ocean Sciences Trust will help to ensure successful knowledge transfer. The investigators also propose a suite of other broader impacts activities, including course development and display at a local festival.

海洋学中一个尚未解决的需求是以比目前可能的更高分辨率的空间和时间尺度对海洋进行采样。虽然目前的系统已经导致了许多重要的发现，海洋学家会同意，许多基本的过程是目前无法观察到的，由于稀疏的采样几何形状。例子包括估计地下粒子的轨迹，以确定下水道污水，水平和垂直扩散率的测量，以及亚中尺度涡度和等密度线的垂直偏移。这些例子需要多功能的，准拉格朗日传感器，从海洋生态系统所依赖的海洋环流产生的相同的相互作用中获益。我们提出了一个原始的海洋观测系统，该系统基于小型，廉价，浮力受控的浮标，能够进行科学数据分析和协调运动控制，在海洋环流的剪切层内监测营养物质的流动，动物的行为，沿海环流，PI的建议，发展分布式，拉格朗日传感系统，既可以跟踪电流和传感环境从来没有接近或完成。拟议的海洋采样移动的传感器网络提出了令人兴奋的研究挑战，远远超出了任何特定的学科，因为他们需要集成的传感和控制方面的锥管与数据处理和计算分析量身定制的特定海洋应用。部署在数十公里的沿海地区，小型的这种锥管部队将同时绘制水流地图和感知环境。这样的飞行器群提供了在空间-时间尺度上对海洋过程进行采样的机会，这在低雷诺数下运输时是无法获得的。由于单个锥管在水下不被跟踪，并且仅在它们在水面时中继感测到的信息，因此我们提议的观测系统需要最少的支持基础设施。利用该项目开发的计算工具和算法，建造浮箱的成本将是目前海洋传感器技术的一小部分。更广泛的影响调查人员建议通过高中，社区研讨会和科学节进行推广。调查人员提到了对多样性的关注。技术的成功开发和部署将产生高度社会相关性的重大影响，与加州海洋科学信托基金的联系将有助于确保成功的知识转移。调查人员还提出了一系列其他更广泛的影响活动，包括课程开发和在当地节日上的展示。