ALOHA Cabled Observatory: Installation and Operation

ALOHA 有线天文台：安装和操作

• 批准号: 0939570
• 负责人: Bruce Howe
• 金额: $ 81.55万
• 依托单位: University of Hawaii
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-06-01 至 2013-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0939570&HistoricalAwards=false
• 关键词: ALOHA; Cabled; Observatory; Installation; Operation

The PI requests funding to complete the installation of the ALOHA Cabled Observatory (ACO) and begin operations. This is a continuation of the ACO project which was proposed to provide infrastructure in support of real-time science at Station ALOHA, the site of more than 20 years of deep water oceanographic investigations 100 km north of Oahu, Hawaii. The ACO uses a retired commercial telecommunications cable donated by AT&T to provide an ?extension cord? from shore to Station ALOHA. The observatory node contains eight ports that investigators can plug into on the ocean floor, using an ROV, to obtain continuous electrical power and an Internet connection between their instruments, their desk on shore, and anywhere else on the Internet. The first phase of installation was completed in February 2007, which included cutting, moving, and terminating the end of the cable at Station ALOHA. An experiment package was connected directly to the cable and has proved the design concepts by transmitting 20 months of nearly continuous pressure and acoustic data to shore in real time. An attempt to install the Phase-2 node of the ACO in October 2008 was thwarted by the failure of commercial underwater optical connectors within the observatory. Basic science instrumentation installed will uniquely address abyssal science questions will also be installed, including acoustic Doppler current profilers, conductivity, temperature and depth sensors, an acoustic modem, a 200-m-tall bottom-moored thermistor array, hydrophones, an absolute pressure sensor, bio-optical sensors, and a video camera. Broader Impacts: This proposal will have a broader impact on other ocean observatories by monitoring the maturity of WMC design and manufacturing in a cooperative program with the supplier. It is anticipated that this work will improve the WMC enabling technology that can then be used more confidently by other observatories. The past work has highlighted one of the most important lessons of ocean engineering -- TEST, TEST, TEST. By continuing this activity, the ocean community will have another test bed (with MARS) to use in improving the emerging enabling technologies. The proposed activity pushes the technological observational envelope for deep ocean science. Together with gliders and other AUVs, cabled observatories will move ocean science beyond the limitations of research vessels and conventional moored buoys. The development of ALOHA will be a community resource. It will leverage off existing outreach efforts associated with HOT and C-MORE. It offers new ways of engaging larger numbers of the student community and the general public in ongoing deep water research at on-costs vastly below those of running a research ship to achieve the same scientific objectives.

PI要求提供资金，以完成ALOHA有线观测台的安装并开始运行。这是ACO项目的延续，该项目拟为ALOHA站的实时科学提供基础设施，ALOHA站位于夏威夷奥廷加以北100公里处，已进行了20多年的深水海洋学调查。ACO使用AT T捐赠的退役商业电信电缆提供一个？延长线？从海岸到ALOHA站观测站节点有八个端口，调查人员可以使用一个插头插入海底，以获得持续的电力，并在他们的仪器、海岸上的办公桌和互联网上的任何其他地方之间建立互联网连接。第一阶段的安装于2007年2月完成，包括在ALOHA站切割、移动和终止电缆末端。一个实验包直接连接到电缆，并通过将20个月的几乎连续的压力和声学数据真实的传输到海岸来验证设计概念。2008年10月，由于天文台内的商业水下光学连接器出现故障，安装ACO第二阶段节点的尝试受阻。安装的基础科学仪器将专门处理深海科学问题，还将安装这些仪器，包括声学多普勒海流剖面仪、电导率、温度和深度传感器、声学调制解调器、200米高的底部系泊热敏电阻阵列、水听器、绝对压力传感器、生物光学传感器和摄像机。更广泛的影响： 通过与供应商的合作项目，监测WMC设计和制造的成熟度，该提案将对其他海洋观测站产生更广泛的影响。预计这项工作将改进WMC使能技术，然后可以更自信地被其他天文台使用。 过去的工作突出了海洋工程最重要的教训之一-测试，测试，测试。通过继续这项活动，海洋界将有另一个试验台（与火星）用于改进新兴的使能技术。拟议的活动推动了深海科学的技术观测范围。与滑翔机和其他水下机器人一起，有线观测站将使海洋科学超越研究船和传统系泊浮标的限制。ALOHA的发展将成为一种社区资源。它将利用与HOT和C-MORE相关的现有外联工作。它提供了新的方式，使更多的学生社区和公众参与正在进行的深水研究，其间接成本远远低于运行研究船以实现相同的科学目标。