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ALOHA Cabled Observatory: Status

ALOHA Cabled Observatory: Status. Bruce M. Howe School of Ocean and Earth Science and Technology University of Hawai’i at Manoa. ION Meeting San Francisco 11 December 2013. Hawaii Ocean Time-series (HOT) 25 years, 250 cruises, and continuing M. Church, R . Lukas, D. Karl

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ALOHA Cabled Observatory: Status

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  1. ALOHA Cabled Observatory: Status Bruce M. Howe School of Ocean and Earth Science and Technology University of Hawai’i at Manoa ION Meeting San Francisco 11December 2013

  2. Hawaii Ocean Time-series (HOT) 25 years, 250 cruises, and continuing M. Church, R. Lukas, D. Karl and many others Station ALOHA ALOHA Cabled Observatory June 2011 – to facilitate science at ALOHA

  3. Mosaic of bottom components ROV Jason installed June 2011 4728 m 25 m

  4. ACO configuration

  5. Status • Data flowing • NSF OTIC O&M project • 2012-2015 • 5 days ship/rov time • Barebones • January 2014 cruise • use UH ROV Lu'ukai(Sea Diver).i • Add new camera and lights, hydrophone • Add new basic sensor package • CTDO2, Fluorometer, 150 kHz ADCP, acoustic micromodem/IES • Recover secondary node for service • New projects • Deep sea biology and carbon cycle J. Drazen and K. Smith • Mooring with profilers – 2015 MRI? • http://aloha.manoa.hawaii.edu

  6. “Green” Submarine Telecommunication Cable Systems • Joint Task Force to investigate the potential of using submarine telecommunications cables for ocean and climate monitoring and disaster warning • http://www.itu.int/en/ITU-T/climatechange/task-force-sc

  7. International Telecommunications Union • UN agency of member states, industry, academia • Add ocean sensors to submarine cable telecommunications systems • Hazard mitigation (tsunami and seismic) • Climate change • Initial: temperature, pressure, acceleration • Future: acoustic modem/IES/hydrophone, nodes… • Gov’ts buy share of system (buy comms redundancy/expansion as well) • Slowly build up global coverage over 25 year life cycle (last longer)

  8. Cable Coverage • Current cables – 25 year cycle • New ones always going in – take advantage!

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