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Autonomous Underwater Gliders off Newport, OR

Autonomous Underwater Gliders off Newport, OR. Co-PIs: Jack Barth and Kipp Shearman Graduate Students: Chris Ordoniez Technicians: Anatoli Erofeev and Zen Kurokawa Piero Mazzini Kate Adams Gonzalo Saldias. cross-margin transect twice per week since April 2006

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Autonomous Underwater Gliders off Newport, OR

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  1. Autonomous Underwater Gliders off Newport, OR Co-PIs: Jack Barth and Kipp Shearman Graduate Students: Chris Ordoniez Technicians: Anatoli Erofeev and Zen Kurokawa Piero Mazzini Kate Adams Gonzalo Saldias cross-margin transect twice per week since April 2006 Along historic NH line (50+ years) CTD dissolved oxygen chlorophyll fluorescence CDOM fluorescence light backscatter

  2. Northern California Current System

  3. Intense air-sea interaction in coastal ocean Barth et al. (2008); Bane et al. (2005)

  4. GPS, Iridium and Freewave Antennae in tail fin Autonomous Underwater Glider Aanderaa Optical Dissolved Oxygen sensor Glider Control and more batteries Science Bay Air bladder Pitch Batteries Optical Sensors (Chl, CDOM and Backscatter) 7 ft long 100 lbs in air CTD Displacement Pump

  5. The OSU Glider Fleet Four 200-m TWR Slocums One 350-m TWR Slocum with RDI DVL Three 1000-m Seagliders Glider bob February 2005 Bob Smith Glider jane June 2005 Jane Huyer

  6. Glider Operations and Maintenance • deploy • execute mission • recover • refurbish • calibrate • repair/test • deploy

  7. OSU Glider Operations • 90 km cross-shelf • strong currents • (50+ cm/s) • abrupt bathymetry • historical observations • April 2006– July 2012 • 2835 glider-days • ~800 sections • 208,500+ vertical • profiles (~4000 in • archive prior to ‘05) • 67,000+ km

  8. May 13-19, 2012 http://gliderfs2.coas.oregonstate.edu/gliderweb/

  9. Dissolved Oxygen from glider Hypoxia July 2006

  10. Responding to changing wind and wave conditions 54-foot Elakha will cross the bar adjust glider communications schedule 6-hours offshore 1-hour near coast adjust glider target waypoints continual interaction with boat operators negotiating operations during weather window response planning for extreme conditions

  11. 2012 2011 2010 2009 2008 2007 2006 coast 200-m isobath 50-m isobath

  12. 50 knots glider “bob” in the January 18-19, 2012 storm wind speed (knots) 30 feet wave height (feet) November 28, 2001 NOAA Buoy 46050

  13. glider “bob” approaches shore and gets carried north in the January 18-19, 2012, storm

  14. oceanographic data from across the shelf in 30-foot seas!

  15. Low-salinity pulses from Columbia River Densities as low as 1018 kg/m**3 Bottom is 1027 1023 (white) 1020 (pink) 1019 (magenta)

  16. A section from today … Salinity

  17. Lessons learned (1 of 2): • Be considerate of glider team re: 24/7/365 • Burnout is an issue • One week on every few weeks; have backup pilots • Do the outreach at the coast with ocean users • Scientist and Fishermen’s Exchange (SAFE) • Be aware of fishing seasons near ports • Opening days and derby days have lots of boats! • Never deploy on Fridays  • Failures inevitably occur on the weekend

  18. Lessons learned (2 of 2): • Never give up on a “lost” glider • “Fail safes” are amazing • Make use of all data you can get your hands on for operations • Wind, waves, currents, freshwater discharge, forecasts • This is the IOOS paradigm • Gliders and glider data need attention • Compass calibrations • Test, prepare, analyze, & calibrate yourselves

  19. Plans (circa 2008) • solidify funding for the west-coast glider and mooring arrays • strategically build glider array • standardize long-term mooring observations and add biological sensors of interest to PaCOOS • incorporate glider and mooring data into ocean observing system (including data assimilation) UW OSU MBARI/SIO SIO

  20. NSF’s Ocean Observatories Initiative (OOI) Endurance Array • Multi-platform, multi-scale • Fixed and mobile assets • Cross-shelf arrays at Newport and Grays Harbor • Oregon Line cabled to Regional Scale Node • Newport glider line ~Fall 2012 • Remainder of array 2013 500 km 125 km COAS (OSU)

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