Collaborative Research: Field Testing RAFOS-Enabled SOLO Floats (SGER)

合作研究：现场测试支持 RAFOS 的 SOLO 浮标 (SGER)

• 批准号: 0243325
• 负责人: Sarah Gille
• 金额: $ 1.35万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-11-01 至 2004-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0243325&HistoricalAwards=false
• 关键词: Collaborative; Research; Field; Testing; RAFOS

0243325 GilleThis proposal will build three new RAFOS-enabled isopycnal-following Sounding Oceanographic Lagrangian Observer (SOLO) floats and test them within a sound sourcearray that is being deployed in the North Atlantic. The experiment is an important technology demonstration project that brings together software and hardware that have been developed for a number of other field programs to produce a novel float with important new capabilities. The floats will be based on the SOLO float design so that, at the least, they can be tracked every 10 days no matter where they go in the world and provide temperature and salinity profiles when they rise to the ocean surface. They will be equipped with RAFOS receivers so that when they are within acoustic range of sound sources, they can be tracked daily to provide higher frequency velocity trajectories that are of order 100 days in length. They will also be programmed to follow isopycnals, so that we can observe float displacements along isopycnal surfaces that are associated with the primary mixing in the ocean. Finally, the floats will be designed to take advantage of new two-way communication capabilities, so that they can be reprogrammed if experimental requirements change after deployment or if any of their sensors fail. Floats of this design will be particularly well-suited for eventual deployment in the Southern Ocean. The high velocities and rough sea state of the Antarctic Circumpolar Current (ACC) make it a difficult region to deploy and maintain current meters, meaning that floats are the preferred method for estimating eddy fluxes. Because of its strong flow, the ACC is likely to advect floats out of an ensonified basin long before the depletion of the float batteries, meaning that pure RAFOS floats may not provide useful data for significant portions of their missions. Isopycnal-following capabilities are important in the Southern Ocean, because the predominant mixing is thought to occur along the strongly tilted isopycnal surfaces of the ACC. This proposal will support development of technology that merges current RAFOS float capabilities with existing ARGO float technology. This development is likely to be useful in a wide range of research in physical oceanography and climate..

[243325] gille该提案将建造三个新的rafos支持的等速跟踪探测海洋拉格朗日观测者（SOLO）浮标，并在部署在北大西洋的声源阵列中对它们进行测试。该实验是一个重要的技术示范项目，它将为许多其他现场项目开发的软件和硬件结合在一起，生产出具有重要新功能的新型浮子。这些浮标将基于SOLO浮标的设计，这样，无论它们去到世界的哪个地方，至少可以每10天对它们进行跟踪，并在它们上升到海洋表面时提供温度和盐度分布图。它们将配备RAFOS接收器，以便当它们处于声源的声学范围内时，可以每天跟踪它们，以提供长达100天的更高频率速度轨迹。它们还将被编程为遵循等平线，这样我们就可以观察到与海洋中主要混合有关的等平线表面上的浮子位移。最后，浮子将被设计成利用新的双向通信能力，以便在部署后实验需求发生变化或任何传感器失效时，它们可以重新编程。这种设计的浮标将特别适合最终部署在南大洋。南极环极流（ACC）的高速度和波涛汹涌的海况使得该地区难以部署和维护流计，这意味着浮子是估计涡旋通量的首选方法。由于其强大的气流，ACC很可能在浮式电池耗尽之前很久就将漂浮物从一个统一的盆地中平流出来，这意味着纯粹的RAFOS漂浮物可能无法为其任务的大部分提供有用的数据。在南大洋，等平跟踪能力是重要的，因为主要的混合被认为发生在ACC强烈倾斜的等平面。该提案将支持将当前RAFOS浮子能力与现有ARGO浮子技术相结合的技术开发。这一发展可能在物理海洋学和气候的广泛研究中有用。