Development and Testing of a Deep-Water, Acoustically-Linked, Moored-Buoy Seafloor Observatory

这项授予马萨诸塞州伍兹霍尔海洋研究所的重大研究仪器奖为开发和测试深水、声学连接、系泊浮标的海底观测站提供了资金。该系统将包括一个位于单点深水系泊设备上的铁饼浮标，配备一个卫星链路，用于与岸上的双向通信，以及一个高速声学调制解调器，用于与海底和系泊设备本身的传感器进行双向通信。这套传感器位于两个海底节点，将包括一台海底地震仪(OBS)、一台声学海流剖面仪(ADCP)、带有相关温度、化学和压力传感器的热液流量计，以及一台电导率-温度-深度(CTD)仪器。所有数据都将连接到两个声学调制解调器，并将数据传输到系泊设备的表面浮标，每天将从浮标表面浮标上的传感器和安装在系泊设备上的仪器的气象数据和海流计数据一起传输到岸上。系泊设备将部署在努特卡断层附近的一个为期15个月的示范项目中，在那里，将在凯克基金会的单独支持下进行补充观测实验。该项目得到了国家科学基金会海洋科学部的支持。非联邦基金的成本分摊支持将占项目总成本的大约30%。*

0215670DetrickThis Major Research Instrumentation award to Woods Hole Oceanographic Institution in Massachusetts provides funds to develop and test a prototype deep-water, acoustically-linked, moored-buoy seafloor observatory. The system will consist of a discus buoy on a single-point, deep-water mooring, equipped with a satellite link for 2-way communication to shore and a high-speed acoustic modem for 2-way communication with sensors on the seafloor and on the mooring itself. The suite of sensors, at two seafloor nodes, will include an ocean bottom seismograph (OBS), an acoustic current profiler (ADCP), hydrothermal flow meters with associated temperature, chemical and pressure sensors and a conductivity-temperature-depth (CTD) instrument. All will be interfaced to two acoustic modems, and they will transmit data to the surface buoy of the mooring, from which they will be transmitted daily to shore together with meteorological data from sensors on the surface buoy and current meter data from instruments installed on the mooring. The mooring will be deployed for a 15-month demonstration project in the vicinity of the Nootka Fault, where complementary observatory experiments will be carried out under separate support from the Keck Foundation. The project is supported by the Division of Ocean Sciences at NSF. Cost-share support from non-federal funds will be provided for approximately 30% of total project costs.***