ALOHA Cabled Observatory - Supplement

这份授予夏威夷大学马诺阿分校的合同为完成和部署ALOHA有线天文台（ACO）提供了支持。ACO旨在扩大夏威夷附近夏威夷海洋时间序列（HOT）站点的科学基础设施，并证明现有的退役光纤通信电缆可以成功地重复使用，以支持科学海洋观测站。该提案建立在2002年通过核磁共振项目（0216164）提供的资金基础上，该项目最初打算使用同轴电信电缆开发一个天文台，但由于所有者破产和无法谈判电缆转让而无法实现。随后，使用光纤电缆的机会出现了，天文台的设计和证明测试已经在实验室和通过电缆（但不是在水中）完成。目前计划于2007年2月在夏威夷附近部署验证模块。它将测试电源、光学再生和天文台电子设备，并将包括一个宽带水听器，采样频率高达96 kHz，以及一个压力传感器。验证模块成功部署和测试完成后，将于2007年底回收并更换为可操作的天文台系统和第一批科学仪器，以进行连续观测和海洋学实验。该天文台将支持多达8个实验系统，具有100base-T以太网数据和高达800w的功率。其中一个实验模块将是一个声学调制解调器，这样实验模块可以部署在电缆附近，但不直接连接，这将为使用低速通信将信息传输到岸上的其他实验提供机会。更广泛的影响：这里提供的支持将为岸上的学生和研究人员通过高速电信电缆持续访问ALOHA站的广泛海洋数据提供基础设施。ALOHA站已经是一个重要的时间序列海洋观测站，通过定期船舶观测收集了超过18年的数据，扩展到包括收集和中继到岸上的连续数据是一个重大的增强。此外，ALOHA电缆观测站作为深海观测站的原型和试验台，使用废弃的光纤通信电缆来支持海洋研究

0652430Duennebier This award to University of Hawaii at Manoa provides support for the completion and deployment of the ALOHA Cabled Observatory (ACO). ACO is intended to expand the scientific infrastructure at the location of the Hawaii Ocean Time-series (HOT) site near Hawaii, and to demonstrate that existing, retired fiber optic telecommunications cables can be successfully reused to support scientific ocean observatories. The proposal builds on work undertaken with funds provided in 2002 via the MRI program (0216164) that was originally intended to develop an observatory using a coaxial telecommunications cable, but was not possible due to the bankruptcy of the owner and inability to negotiate a transfer of the cable. The opportunity to use the fiber optic cable came up subsequently, and observatory design and proof testing has been completed in the laboratory and through the cable (but not in the water). Deployment of the Proof Module off Hawaii is currently planned for February 2007. It will test power supply, optical regeneration and observatory electronics, and will include a broad-band hydrophone that can sample up to 96 kHz as well as a pressure sensor. On completion of a successful deployment and testing of the Proof Module, it will be recovered and replaced in late 2007 with an operational observatory system and the first batch of scientific instruments for continuous observations and oceanographic experiments. The observatory will support up to eight experiment systems with 100base-T Ethernet data and up to 800 W power. One experiment module will be an acoustic modem so that experimental modules may be deployed near the cable, but not attached directly, which will offer an opportunity for additional experiments operating with lower speed communication for the transmission of information to shore. Broader Impacts: Support provided here will provide an infrastructure for continuous access to a broad array of oceanographic data at Station ALOHA by students and researchers on shore via high speed telecommunications cable. Station ALOHA is already an important time-series station of ocean observations, with over 18 years of data collected by regular ship observations, and the expansion to include continuous data collected and relayed to shore is a major augmentation. In addition, the ALOHA Cabled Observatory serves as a prototype and test bed for deep ocean observatories, using abandoned fiber-optic telecommunications cables to support ocean research.***