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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/2037

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Title: Science requirements and the design of cabled ocean observatories
Authors: Chave, A. D.*
Massion, G.*
Mikada, H.*
Keywords: ocean observatory
science requirements
Issue Date: 2006
Series/Report no.: 2-3/49 (2006)
Abstract: The ocean sciences are beginning a new phase in which scientists will enter the ocean environment and adaptively observe the Earth-Ocean system through remote control of sensors and sensor platforms. This new ocean science paradigm will be implemented using innovative facilities called ocean observatories which provide unprecedented levels of power and communication to access and manipulate real-time sensor networks deployed within many different environments in the ocean basins. Most of the principal design drivers for ocean observatories differ from those for commercial submarine telecommunications systems. First, ocean observatories require data to be input and output at one or more seafloor nodes rather than at a few land terminuses. Second, ocean observatories must distribute a lot of power to the seafloor at variable and fluctuating rates. Third, the seafloor infrastructure for an ocean observatory inherently requires that the wet plant be expandable and reconfigurable. Finally, because the wet communications and power infrastructure is comparatively complex, ocean observatory infrastructure must be designed for low life cycle cost rather than zero maintenance. The origin of these differences may be understood by taking a systems engineering approach to ocean observatory design through examining the requirements derived from science and then going through the process of iterative refinement to yield conceptual and physical designs. This is illustrated using the NEPTUNE regional cabled observatory power and data communications sub-systems.
URI: http://hdl.handle.net/2122/2037
Appears in Collections:Annals of Geophysics
03.01.99. General or miscellaneous

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