A Submerged Upper-Ocean Multidisciplinary Timeseries Profiler

项目标题：水下上层海洋多学科时间序列剖面图项目摘要私人投资机构为一个开发项目申请资金，该项目的成本正与一个受资助的欧洲项目和贝德福德海洋研究所分摊。这项活动将为偏远深海区域的水柱上层开发系泊剖面系统。目标是能够提供从大约150米深到地表的实时物理和生物地球化学变量的时间序列观测，例如碳循环科学和NPZD类型模型所要求的那些变量。其中一些传感器目前又大又重，不能安装到浮标、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，防止破坏，减少传感器的污垢，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，满足物理和气候研究、碳循环科学、地球化学和生物学等长时间序列的广泛科学需求。将作为原型开发的系统将填补深水和偏远地区低带宽站的一个利基市场，那里的重点是上层生物地球化学和生态系统以及控制物理过程。它可以为OOI未来的基础设施工作和提议提供一个基础。数据处理和遥测将是开放和模块化的，并与正在开发的猎户座数据基础设施兼容。所选择的方法包括一台水下绞车，连接到大约150米深的典型水下系泊设备的顶部浮子。一个浮力传感器包停在这个深度，但每天有1-2次通过机电钢丝上升到表面，这根钢丝由绞车保持紧绷。该组件可以控制绞车停止采样，当到达表面时，或在不利条件下避开表面。当包裹到达水面时，剖面数据将被遥测，包括来自系泊更深的其他仪器的数据。传感器组件将携带商业上可用的仪器，并将为激光浮游生物计数器做好准备，根据另一项提议，该计数器将针对这一应用进行重新设计。绞车本身将从现有的水下绞车中进行改装，以满足预期应用的要求。

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.