The VENUS Cabled Seafloor Laboratory in Operation: Lessons Learned in the First Year

Details The VENUS Cabled Seafloor Laboratory in Operation: Lessons Learned in the First Year The VENUS Cabled Seafloor Laboratory in Operation: Lessons Learned in the First Year

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agufmos34f..02t&link_type=abstract

American Geophysical Union, Fall Meeting 2006, abstract #OS34F-02

Physics

0434 Data Sets, 4243 Marginal And Semi-Enclosed Seas, 4262 Ocean Observing Systems, 4294 Instruments And Techniques, 4834 Hypoxic Environments (0404, 4802)

Scientific paper

The Victoria Experimental Network Under the Sea (VENUS) installed its first cabled array of instruments at 100m in Saanich Inlet in British Columbia. The data displays and search capability were opened to researchers and the public in June via the website. As we prepare to deploy the second, larger array into 300m in the Strait of Georgia, our initial months of operations have highlighted several issues that should be addressed by any of the "new generation" cabled observatories. A dedicated job during the first year has been the development of software drivers to collect readings from the instruments and save them in the observatory archive. This step linked to a data delivery service with two paths: one, as data displays viewed on-line, and the second, as software functions that serve targeted archive queries. After six months, when the instrument platforms were recovered for servicing; little bio-fouling of sensing surfaces was evident. Reliability of instruments (such as cameras) over long periods will be a major challenge for deep water cabled observatories. Design features allowing rapid turnaround, easy service and small deck footprint will reduce maintenance costs. With the deployment of a dead pig for a forensic study, a new demand immediately arose: round-the-clock service for a scientist undertaking a short-lived experiment. Determining the operational concept for the infrastructure is a key decision with significant cost implications. VENUS has learned that operating as a responsive 7/24 facility has many different demands. Aligning the infrastructure with the operation concept must start early in the design phase and continue into steady state operations.

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