Industrial solutions for regional cabled ocean observatories

Waterworth, G.

doi:10.1109/oceanse.2005.1513200

Cited by 4 publications

(2 citation statements)

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“…It must provide up to 9 KW of useable secondary power with various conditions of primary voltage levels and secondary loads variation. Finally, it must be performed on the sea bottom where thermal dissipation issues, hydrostatic pressure resistance and electrical isolation requirements are hard to combine [2].…”

Section: Poweringmentioning

confidence: 99%

Open Architecture Submarine Cable Observatory Systems

Lecroart¹,

Hazell²,

Waterworth³

et al. 2007

OCEANS 2007 - Europe

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To deliver high power and broadband communication to the ocean floor requires a number of changes to existing technology developed to bridge oceans from shore to shore. The dry-dry solution is well mastered and although it evolves over time following technological innovations, adapting it to become a dry-wet solution represents a major technical challenge. The cabled observatory system developed for the Canadian part of the North-East Pacific Time-series Undersea Networked Experiment (NEPTUNE) encompasses major breakthroughs in several areas, including optical transmission, ocean engineering and powering.

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Section: Poweringmentioning

confidence: 99%

Open Architecture Submarine Cable Observatory Systems

Lecroart¹,

Hazell²,

Waterworth³

et al. 2007

OCEANS 2007 - Europe

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“…It is important to note that the branching unit also serves to electrically isolate the science node from the backbone in the event of a failure of the science node. This allows the remaining science nodes and backbone to operate until the ROV serviceable science node can be scheduled for repair [ 5].…”

Section: Key Wet Plant Infrastructure Elements Of a Cabled Oceanmentioning

confidence: 99%

ROV Serviceable Science Node for Cabled Ocean Observatories

Shaheen¹,

Waterworth²

Proceedings of OCEANS 2005 MTS/IEEE

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year life cabled ocean observatories are being planned with deep-sea and/or shallow water science nodes connected to the shore by commercially off the shelf (COTS) submarine telecommunication equipment, providing ample electrical power and high bandwidth data communications interfaces for science experiments and monitoring projects. The COTS equipment housed within the science nodes are not yet designed or qualified to traditional submarine telecom standards and are known to be less reliable than the associated backbone cable components. Maintenance at the bottom of the ocean is a costly and complex task. Therefore, cost effective maintenance solutions have had to be found that do not require the use of a cable lay vessels (C/V) once initial installation and commissioning has been completed.To address this need for cost effective servicing of the science node, a ROV serviceable science node has been developed that allows the power and communications equipment housed within the node to be easily recovered and replaced by the same research vessel (R/V) and ROV deploying and servicing the science instruments.

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