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Recent Buoy Developments at NOAA: Aids to Navigation and Quick Response Estuarine Buoy

This workshop discusses the latest developments in buoy technology, focusing on Aids to Navigation (ATON) and the Quick Response Estuarine Buoy (QREB). Topics include acoustic doppler current profiler (ADCP) measurements, GPS compass calibration, battery life, and upgrades for the QREB. The workshop is held at Scripps Institution of Oceanography in La Jolla, CA.

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Recent Buoy Developments at NOAA: Aids to Navigation and Quick Response Estuarine Buoy

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  1. Data Buoy Cooperation PanelScientific and Technical WorkshopScripps Institution of OceanographyLa Jolla, CA Recent Buoy Developments at NOAA/NOS/CO-OPS Ocean Systems Test & Evaluation Program Mark Bushnell, Kate Bosley, Tammy Graff, Warren Krug NOAA/NOS/CO-OPS October 16, 2006

  2. Aids TONavigation (ATON) Acoustic Doppler Current Profiler (ADCP) Current profiles in Shipping channels Updated every 6 min Radio link to shore Part of NOS/CO-OPS PORTS

  3. “Not to Interfere” CONSIDERATIONS • Deployed/recovered with buoy on station • Entire package removed prior to ATON servicing • All similar metals and coloration • Minimal alteration of buoy profile and characteristics

  4. Speeds compare very well, within anticipated error of individual instruments No obvious bias in ATON Mean difference ~ 3cm/s

  5. GPS COMPASS CALIBRATION GOALS Rotate GPS compass and Nortekto determine the effectiveness of the Nortek compass calibration algorithm Evaluate potential for GPS compass calibration of the Nortek Thales GPS Compass 10 Hz compass sampling rate, 1 sec average Nortek 1 sec compass sampling rate

  6. Comparison of current direction to a bottom-mounted ADCP improves with increasing speed much of the difference is real spatial variability

  7. BATTERY LIFE Easily achieve 180 day deployment with 0.1 watt Radio 1 watt radio required further power saving modifications, 297 days and counting.

  8. ATON ADCP measurements are noisier at all levels. ATON ADCP has O(10X) larger vertical velocity

  9. Quick Response Estuarine Buoy (QREB) Support for hazmat response Easily deployed from small vessel Short duration deployment (90 days) Survive moderate gale Report current profile and met data at 6 minute intervals

  10. As delivered… 600 pounds 13 feet overall length 4 ft diameter Tested in the Chesapeake Bay at CC#16, compared to bottom-mounted RDI and our ATON ADCP

  11. Sutron Xpert 9210 DCP 300 KHz RDI ADCP RM Young anemometer Barometric pressure Air temperature GPS 6 minute data update rate IP modem GOES

  12. QREB Display

  13. Upgrades & Improvements • Ruggedize DCP housing • Calibrate compass (wind direction) • Nortek ADP (less power, near-surface velocity) • GPS • Smaller beacon (solar panels) • Battery capacity testing • Iridium (global coverage, less power) • Lightweight capability

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