A Submerged Upper-Ocean Multidisciplinary Timeseries Profiler

水下上层海洋多学科时间序列分析器

• 批准号: 0501783
• 负责人: Uwe Send
• 金额: $ 108.24万
• 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: Continuing Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-02-15 至 2012-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0501783&HistoricalAwards=false
• 关键词: Submerged; Upper; Ocean; Multidisciplinary; Timeseries

Project Title: A submerged upper-ocean multidisciplinary timeseries profilerProject SummaryThe PIs request funds for a development project whose costs are being shared with a funded European project and Bedford Institute of Oceanography. This activity will develop a moored profiling system for the upper layer of the water column in remote deep-ocean regions. The goal is a capability to provide timeseries observations from approximately 150 m depth to the surface in real-time, of physical and biogeochemical variables, such as those required by carbon cycle science and NPZD-type models. Some of those sensors currently are large and heavy, and cannot be incorporated into floats, gliders, or existing moored profilers. The approach chosen avoids having a moored buoy at the surface, in order to facilitate operation in harsh conditions, prevent vandalism, reduce fouling of sensors, and to minimize the assemblage of biological communities around the mooring. The proposed development is intended to provide a state-of-the art technology option for emerging programs for ocean observatories, addressing a wide range of science needs for long timeseries in physical and climate research, carbon cycle science, geochemistry, and biology. The system to be developed as a prototype would fill a niche for low-bandwidth stations in deep water and remote locations, where the focus is on the upper-layer biogeochemistry and ecosystem in conjunction with the controlling physical processes. It could provide a basis on which future OOI infrastructure work and proposals could build. The data handling and telemetry will be open and modular, and compatible with the ORION data infrastructure being developed. The chosen approach consists of an underwater winch, connected to the top float of a typical subsurface mooring, at approximately 150m depth. A buoyant sensor package is parked at this depth, but 1-2 times per day ascends to the surface on an electromechanical wire, which is kept taut by the winch. The package can control the winch for sampling stops, when reaching the surface, or to avoid the surface under unfavorable conditions. The profile data would be telemetered when the package reaches the surface, including data from other instruments deeper on the mooring. The sensor package will carry commercially available instruments and will be ready for a Laser Optical Plankton Counter, which will be re-designed for this application under a separate proposal. The winch itself will be adapted from one of the existing underwater winches, to fulfill the requirements of the anticipated applications.

项目名称：一个淹没的上层海洋多学科时间序列剖面仪项目摘要PI要求为一个开发项目提供资金，该项目的费用与一个受资助的欧洲项目和贝德福德海洋学研究所分摊。这项活动将为偏远深海区域的水柱上层开发一个系泊剖面测量系统。目标是能够提供从大约150米深到地表的物理和地球化学变量的实时时间序列观测，如碳循环科学和NPZD型模型所需的变量。这些传感器中的一些目前又大又重，并且不能被并入浮子、滑翔机或现有的系泊剖面仪中。所选择的方法避免了在水面上有系泊浮标，以便于在恶劣条件下操作，防止故意破坏，减少传感器的污染，并尽量减少系泊周围生物群落的聚集。拟议的开发旨在为海洋观测站的新兴项目提供最先进的技术选择，解决物理和气候研究，碳循环科学，地球化学和生物学长期的广泛科学需求。作为原型开发的系统将填补深水和偏远地区低带宽台站的空白，其重点是上层海洋地球化学和生态系统以及控制性物理过程。它可以为今后的OOI基础设施工作和建议提供基础。数据处理和遥测将是开放的和模块化的，并与正在开发的ORION数据基础设施兼容。所选方法包括水下绞车，连接到典型水下系泊的顶部浮子，深度约为150 m。一个浮力传感器包停在这个深度，但每天1-2次上升到表面上的机电线，这是保持拉紧的绞车。该软件包可以控制绞车采样停止，当到达表面，或避免在不利条件下的表面。当包裹到达水面时，将遥测剖面数据，包括来自系泊深处其他仪器的数据。传感器包将携带商业上可用的仪器，并将准备用于激光光学浮游生物计数器，该计数器将根据单独的建议重新设计。绞车本身将从现有的水下绞车之一，以满足预期应用的要求。