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DYNAMO ISS Diego Garcia and R/V Revelle

DYNAMO ISS Diego Garcia and R/V Revelle. RV Revelle. Diego Garcia. Bill Brown, EOL Science Group, 14 March 2012. R/V Revelle. Toga Radar. Exhaust Plume. Wind Profiler. WV GPS & WXT. Solar Radn , SPN-1. Met Mast. WebCam. Balloon Launches. NOAA. Helium Container.

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DYNAMO ISS Diego Garcia and R/V Revelle

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  1. DYNAMO ISSDiego Garcia and R/V Revelle RV Revelle Diego Garcia Bill Brown, EOL Science Group, 14 March 2012

  2. R/V Revelle Toga Radar Exhaust Plume Wind Profiler WV GPS & WXT Solar Radn, SPN-1 Met Mast WebCam Balloon Launches NOAA Helium Container

  3. Revelle Soundings • 630 Soundings • Launched from main deck fan tail or either side depending on wind direction • During IOPs ship stationary and sometimes becalmed • Deck heating • Balloon sometimes followed exhaust plume

  4. Sea life

  5. Downtown Diego GarciaBritish Indian Ocean Territory Airport . Tent City ISS • ISS at USAF site at Tent City • Isolated location with very limited access

  6. ISS Site Met Tower Lab Container Wind Profiler GPS WV & WXT Helium Container All Sky Cam Solar Sensors Rain Gauge, Isotope samples Disdro’WXT RASS Ceilometer Tipping Bucket • Wind Profiler with RASS • Ceilometer • Met Tower with solar radiation and tipping bucket gauge • Water Vapor GPS • 2 WXT (510 with disdrometer & 520) • All sky camera • Manual rain gauge and water isotope sampling • Launched around 700 soundings

  7. Example

  8. Icing • In heavy rain at up around the freezing level the balloons often iced up • Affected around 2% of soundings • Added extra Helium and applied Pam

  9. Island Life

  10. Summary and Known Issues • Launched around 1300 radiosondes • Ship, Island & Lagoon Heating • Fetch on ship and island • Ship exhaust plume • Radiosonde pressure offset • Radiosonde solar heating • Balloon Icing • Rain gauge faults • Moisture in solar radiation sensors • Metocobservations • Ship profiler sea clutter • GPS Water Vapor from ship analysis

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