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Air-sea exchange group report on “Priorities for advancement of the ocean observing system”

Air-sea exchange group report on “Priorities for advancement of the ocean observing system”. Participants: Lisan Yu, Al Plueddeman, Mark Bourassa, Megan Cronin, Chris Fairall, Dave Hosom, Rick Lumpkin, Mike McPhaden, PingPing Xie,.

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Air-sea exchange group report on “Priorities for advancement of the ocean observing system”

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  1. Air-sea exchange group report on “Priorities for advancement of the ocean observing system” Participants: Lisan Yu, Al Plueddeman, Mark Bourassa, Megan Cronin, Chris Fairall, Dave Hosom, Rick Lumpkin, Mike McPhaden, PingPing Xie,

  2. 1. What are the needs for advancement of the ocean observing system? • Long-tem Goals • Current status • (c) Short-term increments

  3. Goals: • Accuracy for net heat flux estimates: ±10Wm-2 • Balanced global energy budget OAFlux+ISCCP ERA40 NCEP1 NCEP2 Qnet Mean Diff(Product – Buoy)

  4. (b) Current status of global air-sea flux measurements: • There are needs for • better spatial coverage, particularly at higher latitudes • high quality, continuous record, long duration • simultaneous measurements of wind, wave, radiations in addition to humidity, temperature, and precipitation All components No QLW x No QLW and QSW

  5. Satellite radiation products: discontinuity in both space and time There is a need of radiation (longwave and shortwave) sensors at reference sites and along cross-basin VOS sections.

  6. (c) Short-term increments • Review flux observing capacity on existing platforms (buoys, research vessels, VOS, coastal guard/icebreakers…) • Improve efforts to install radiation sensors on all buoys • Improve efforts to install air-sea flux sensors on major cross-basin VOS

  7. 2. What are the needs of the ocean observing and user communities? • High frequency sampling (at least 3-hourly, ideally 10-minute) • (2) Error bar information for flux measurements and analysis products

  8. 3. What are the recommended priorities for the Climate Observation Program? • Review existing flux observing capacity on existing platforms (buoys, research vessels, coastal guard/icebreakers…) • Improve efforts to install radiation sensors on all buoys, air-sea&flux sensors on arctic research vessels, icebreakers, major cross basin VOS • Reenergize a flux workgroup to focus on review and strategic planning and to prepare for OceanObs (2008?)

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