Wave Glider: Liege Colloquium. Colloquium April 27

Transcription

1 The The Wave Wave Glider: Glider: Enabling Enabling aa New New Approach Approach to to Persistent Persistent Ocean Ocean Observation Observation and and Research Research nd Liege 42 42nd Liege Colloquium Colloquium th 2010 April April 27 27th 2010 Justin Justin Manley, Manley, Neil Neil Trenaman, Trenaman, Scott Scott Willcox Willcox Liquid Liquid Robotics Robotics Inc. Inc. 1

2 Founded: January staff Headquarters: Sunnyvale California Test & Development: Big Island of Hawaii Customers & Collaborators: Globally Kawaihae

3 Wave Glider Basics Unique Two Part Vehicle: Converts wave motion into thrust Calm and rough seas Thrust generation increases with sea state Long mission durations possible Both a Buoy and a Vehicle Travel to operation area Return for maintenance Patrol, survey or hold station It s Real: Existing fleet has traveled over 60,000 nmi Distance of longest mission, 6200 nmi Duration of longest mission, 365 days

4 Wave Glider Concept 7m Fins 2m Both upward and downward motions produce thrust A rudder at the tail of the glider steers the vehicle in any direction

5 Copyright Liquid Liquid Robotics Inc. Inc.

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7 Configurable Float Ruggedized COTS solar panels Core Electronics Module Aft Payload Forward Payload 4.5 kg Li-ion batteries: 665 Watt-hour Configurable Payload Boxes Composite, Foam-Filled Float Body Central Antenna Deck

8 Web Based User Interface Copyright 2009 Liquid Robotics Inc. 8

9 Wave Glider Speed Performance Under typical sea conditions, Wave Glider advances at 1.5 kts, independent of wave direction. Wave Glider maintains 0.25 to 0.50 kt headway, even under very calm conditions. Proprietary, Copyright Copyright 2010 Liquid 2010 Liquid Robotics Robotics Inc. Inc.

10 August-Sept. 09 Red Flash Monterey - Alaska Proven Long Range Capability April-June 09 Red Flash Monterey -San Diego -Eureka June-August 09 Honu & Kohola Hawaii San Diego

11 West Coast Cruise Monterey to Alaska, August 13 September 23, 2009 Red Flash was launched out of Monterey and sent on an offshore course for Alaska. Onboard weather sensor data compared favorably against existing weather buoys Encountered 40 knot winds and 6.1 meter waves Distance: 1300 nm Duration: 41 days Average Speed: 1.5 kts

12 Heavy Weather Alaska Canada Border

13 Applications

14 Station Keeping Comparison WG: 50m M2 1700m 50m radius 50m radius Copyright 2010 Copyright Liquid 2010 Robotics Liquid Inc. Robotics Inc. 14

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16 M1 Mooring M2 Mooring

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18 ADCP Trials Successful system integration, Teledyne RDI 600 khz Sentinel Series of tests to evaluate the ADCP performance and data quality Data below the glider validated Surface layers between the float and glider understood to be good quality

19 Passive Acoustics: HARP + Wave Glider

20 Cosmic Ray Detection Neutron array Charged particle detector (protons and muons) Spectral gamma sensor Forward Waveglider payload drybox Data acquisition/processing module

21 Experiment Plan

22 Tsunami Warning NOAA DART Buoy Test Provided redundant communications with bottom mounted sensor DART buoy off Kona coast Glider on station 08/03/09 to 08/23/09 Transited with glider based payload Supported acomms to BPR Station keeping functionality demonstrated

23 CO 2 Flux Monitoring Collaboration with NOAA s Pacific Marine Environmental Laboratory Integrate bio-geo-chemical sensor suite on wave glider Deploy in Pacific Ocean Calibration and Evaluation Long-term monitoring in South Pacific

24 METOC Wave Glider Wave Measurement Instrumentation ADCP & CTD Support Electronics Weather Station CTD ADCP Flourometer CTD

25 Ride the next wave with us! Looking forward to feedback, discussions and collaboration. Demonstrations in Hawaii encouraged! Contact: Neil Trenaman, Vice President Sales , Justin Manley, Director Scientific and Commercial Business ,