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Tropical Ocean-Global Atmosphere (TOGA) Tropical Atmosphere Ocean (TAO) Array

Tropical Ocean-Global Atmosphere (TOGA) Tropical Atmosphere Ocean (TAO) Array. Mira Losic Dec 2, 2010. El Nino Southern Oscillation (ENSO). Weakening of easterlies Sloshing of warm water to the east. Stronger easterlies Steeper than average thermocline. Motivation. 1982-83 El Nino

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Tropical Ocean-Global Atmosphere (TOGA) Tropical Atmosphere Ocean (TAO) Array

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  1. Tropical Ocean-Global Atmosphere (TOGA) Tropical Atmosphere Ocean (TAO) Array Mira Losic Dec 2, 2010

  2. El Nino Southern Oscillation (ENSO) • Weakening of easterlies • Sloshing of warm water to the east • Stronger easterlies • Steeper than average thermocline

  3. Motivation • 1982-83 El Nino • Biggest of the century at the time • Undetected until its peak

  4. 1982-1983 El Nino Impacts: • Droughts • Floods • Typhoons • Loss of marine life • Coastal erosion • Landslides • Wild fires • Tornadoes Dust storm in Melbourne, Feb 1983

  5. The Making of TAO Array • 10 years to build and was completed in 1994 • During this time 400 buoys deployed on 83 cruises with 17 different ships from 6 countries • Moorings deployed in 2000-5000m deep waters

  6. TAO/TRITON Array • 70 moored buoys • 8N-8S, 95W-137E • Moorings recovered and replaced annually • Yellow - TRITON • Blue – ATLAS • Red - ADCP (acoustic doppler current profiler) (10m-250m)

  7. TAO Array Data transmitted several times per day and available on web in near real time

  8. Triangle Trans Ocean Buoy Network (TRITON) • TRITON replaced ATLAS buoys at 12 sites in west • TAO/TRITON Jan 1, 2000 • Serviced by Japanese research vessel • Replacement took several years to be sure of quality and proper calibration

  9. Data Display and Access http://www.pmel.noaa.gov/tao/index.shtml

  10. Current Conditions – La Nina

  11. Beneficial Uses • Weather • Research • Agriculture • Marine ecology • Energy and water • Public health • Economy • Education • Recreation

  12. Other Arrays – PIRATA • (Prediction and Research Moored Array in the Atlantic) PIRATA

  13. Other Arrays - RAMA

  14. References • NOAA / PMEL / TAO Project Office, Dr. Michael J. McPhaden, Director • http://www.pmel.noaa.gov/tao/index.shtml • Stewart text

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