System engineering for a regional scale cabled observatory, process and progress

Massion, G.; Beauchamp, P.; Chave, Alan D.; McGinnis, T.; Phibbs, P.; Rodgers, D. M.

doi:10.1109/ssc.2003.1224150

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…The first set of technologies encompasses the design and installation of wet plant hardware for submarine telecommunication systems based on state-of-the-art commercial practices. The second are derived from the use scenario/system engineering process described here, primarily for the NEPTUNE regional cabled observatory (Delaney et al, 2000;Rodgers et al, 2001;Massion et al, 2003). The authors believe that the issues and tradeoffs analyzed for NEPTUNE, and the system architecture derived from that formal design process, are generic, and apply to understanding the implementation of any cabled ocean observatory.…”

Section: Science Requirements and The System Engineering Processmentioning

confidence: 99%

Cabled Ocean Observatory Systems

Chave¹,

Waterworth²,

Maffei³

et al. 2004

mar technol soc j

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Future studies of episodic processes in the ocean and earth will require new tools to complement traditional, ship-based, expeditionary science. This will be enabled through the construction of innovative facilities called ocean observatories which provide unprecedented amounts of power and two-way bandwidth to access and control instrument networks in the oceans. The most capable ocean observatories are designed around a submarine fiber optic/power cable connecting one or more seafloor science nodes to the terrestrial power grid and communications backhaul. This paper defines the top level requirements that drive cabled observatory design and the system engineering environment within which a scientifically-capable infrastructure can be implemented. Commercial high reliability submarine telecommunication technologies which will be crucial in the design of long term cabled observatories are then reviewed. The top level architecture of a generic cabled observatory, describing the main subsystems comprising the whole and defining technological approaches to their engineering, is then described, along with some example design choices and tradeoff studies.

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Section: Science Requirements and The System Engineering Processmentioning

confidence: 99%

Cabled Ocean Observatory Systems

Chave¹,

Waterworth²,

Maffei³

et al. 2004

mar technol soc j

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“…Physical packaging of the seafloor nodes must be accomplished in a way that facilitates science as well as maintenance. The system engineering for NEPTUNE to accomplish these goals is presently underway [2]. A description of the NEPTUNE power system design can be found in [3].…”

Section: Technologies and Tradeoffs 2-1functional Requirementsmentioning

confidence: 99%

A modular Gigabit Ethernet backbone for NEPTUNE and other ocean observatories

Maffei

Chave

Bailey

et al. 2003

2003 International Conference Physics and Control. Proceedings (Cat. No.03EX708)

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Ethernet is the most popular technology used for Local Area Networks (LANs). Recently, Gigabit Ethemet (GbE) technology has successfully competed with SONET and other legacy alternatives such as ATM and Frame Relay for Metropolitan Area Network (MAN) and Wide Area Network (WAN) implementations. This paper describes a modular ocean observatory node design resulting from design activities of the NEPTUNE observatory data communications team. Internal node modules based on Gigabit Ethemet, point-to-point wave division multiplexing (WDM) and TCP/IP (Internet) protocol technologies are employed to define communications building blocks used in the design of the NEPTUNE regional scale ocean observatory communications system and are also applicable to coastal, buoyed and autonomous observatory nodes.

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Sensor networks for cabled ocean observatories

Howe

McGinnis

Proceedings of the 2004 International Symposium on Underwater Technology (IEEE Cat. No.04EX869)

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Absfracl-An infrastructure for global, regional, and coastal suh-sen observatories is being planned to support individual and networked sensors. The main emphasis has been to provide basic power and communications capability at "primary" nodes; less has been given to the sensor network infrastructure that extends the capability of the observatory into the full three-dimensional volume of interest. Secondary cables and junction boxes are needed to extend tbe horizontal reach by tens to hundreds of kilometers from the primary nodes; moorings up into the water column and boreholes into the sediments and crust are necessary to extend the vertical reach. The support infrastructure must include navigation and communications systems, mobile platforms such as freeswimming autonomous undersea vehicles, and bottom rovers that carry sensors and provide data and energy "tanker" service. The requirements for these various network elements and possible solutions are discussed, with an emphasis on the design of a specific mooring for the ALOHA Ohservatory north of Oahu. This subsurface mooring will support' a fullwatersolumn moored proiiler with a docking station that transfers power and data, enabling adaptive sampling. The subsurface float at 200 m provides a ROV-serviceable pbtform for near surface instrumentation, such as an upward looking acoustic Doppler current profder and B winched sensor system.

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System engineering for a regional scale cabled observatory, process and progress

Cited by 4 publications

References 1 publication

Cabled Ocean Observatory Systems

Cabled Ocean Observatory Systems

A modular Gigabit Ethernet backbone for NEPTUNE and other ocean observatories

Sensor networks for cabled ocean observatories

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