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The Global Ocean Data Assimilation Experiment The History

Explore the evolution of The Global Ocean Data Assimilation Experiment (GODAE) from its inception in 1997 to the GODAE Final Symposium. Discover the achievements, challenges, and significance of this pioneering ocean observing system.

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The Global Ocean Data Assimilation Experiment The History

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  1. The Global Ocean Data Assimilation ExperimentThe History Neville SMITH Bureau of Meteorology, Australia Michel LEFEBVRE Villeneuve, France

  2. The seeds … • Michel and La Chapelle-Aubareil 1995 • Practical experience • Knowing what is useful • TOGA, WOCE • Development of an ocean observing system • GONOW or GODAE? • Concept agreed early 1997 GODAE Final Symposium

  3. The Foundations … The First GARP Global Experiment Ocean prediction Understand, predictclimate Ocean models Ocean predictability Ocean assimilation The observing system • The goals of GARP were effectively: • deterministic weather forecasting; • understanding climate • FGGE Goals (circa 1978) • Development of more realistic models for extended range forecasting, general circulation studies, and climate. • To assess the ultimate limit of predictability of weather systems. • To develop more powerful methods for assimilation of meteorological observations and, in particular, for using non-synchronous data... • To design an optimum composite meteorological observing system for routine numerical weather prediction... GODAE Final Symposium

  4. Why a Global Ocean Data Assimilation Experiment ? • Opportunity • development and maturity of remote sensing and in-situ observing systems, making global real-time observation feasible • steady advances in scientific knowledge (e.g. TOGA, WOCE) and our ability to model the global ocean and assimilate ocean data • Need • user demand for (global) ocean products for a variety of applications including scientific research • the future sustained, well supported ocean observing system requires a convincing demonstration of its utility • Timing • Now (1997) for 10 years GODAE Final Symposium

  5. Where was the science? GODAE Final Symposium • Practical prediction

  6. Organising GODAE • “Aloof” and self determining • Partners (PIs) • Patrons • The GODAE Common • A beginning, and an end GODAE Final Symposium

  7. On the importance of data • Altimetry and satellite data • The support of the CEOS Strategic Implementation Team 1997 • The OSTST – GODAE alliance • Argo 1998 • OceanObs 1999 • GHRSST 2000/2001 • GODAE provided a unifying force GODAE Final Symposium

  8. GODAE: The System Build GODAE Final Symposium

  9. Lessons learned … • Successes, we have had a few … • But not all things have followed to plan • The Symposium will reveal • Operating prediction systems • Advances in knowledge • Advances in the observing system • A powerful legacy GODAE Final Symposium

  10. GODAE Final Symposium

  11. And so … some last thoughts • Good people • My enduring memory will be of the people that have worked to make GODAE a reality • GODAE: • OK, we are now at the end. We lay before you our achievements and ask you to judge whether we have succeeded or not. • It is humbling to see the progress made, and the plans for the future, and to look back at the basis from which this was made. • Success begets responsibility GODAE Final Symposium

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