A Submerged Upper-Ocean Multidisciplinary Timeseries Profiler

项目名称：一种水下上层海洋多学科时间序列剖面仪项目摘要：PIs为一个开发项目申请资金，该项目的成本由一个资助的欧洲项目和贝德福德海洋研究所共同承担。这项活动将为遥远的深海区域的上层水柱开发一个系泊剖面系统。目标是能够提供从大约150米深度到地表的实时时间序列观测，包括物理和生物地球化学变量，例如碳循环科学和npzd型模型所需的变量。其中一些传感器目前又大又重，不能集成到浮子、滑翔机或现有的系泊剖面器中。所选择的方法避免在海面上放置系泊浮标，以便于在恶劣条件下操作，防止破坏，减少传感器的污垢，并最大限度地减少系泊周围生物群落的聚集。拟议的发展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、地球化学和生物学中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站点的空白，这些站点的重点是与控制物理过程相结合的上层生物地球化学和生态系统。它可以为将来的OOI基础设施工作和建议提供一个基础。数据处理和遥测将是开放和模块化的，并与正在开发的ORION数据基础设施兼容。选择的方法包括一个水下绞车，连接到一个典型的地下系泊的顶部浮子，深度约为150米。浮力传感器包放置在这个深度，但每天1-2次通过机电线上升到地面，并由绞车拉紧。该包装可以控制绞车的采样停止，当到达表面时，或避免在不利条件下的表面。当包裹到达地面时，剖面数据将被遥测，包括来自系泊处更深的其他仪器的数据。传感器包将携带商用仪器，并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提案重新设计用于该应用。绞车本身将改编自现有的水下绞车之一，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.