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Tuesday, July 11

Town Hall 1: Operational monitoring of global and regional sea level by satellite altimetry

Over the last 26 years, sea level has been measured by a host of satellite mission, launched and operated by the various space agencies world wide. Together they clearly identify not only the approximately 3 mm/year rise in global mean sea level, but also the regional deviations from the global mean. The monitoring has mainly relied on the reference altimeter missions (TOPEX and the Jason family of satellites), but recent efforts like ESA's Sea Level Climate Change Initiative have brought other missions to meet the same high standards required for sea level change monitoring. In addition, fiducial measurement campaigns have been set up to cross-calibrate the satellite systems with in-situ tide gauges. In this session the various space agencies will present their involvement and commitment to ensure the continuation of the sea level climate data record from satellite altimetry into the future and the upkeep of the older data with improved knowledge of altimeter data corrections, orbit determination, etc. The moderator and speakers invite the conference participants to share their expectations and possible needs for improvement of current and future services and products delivered by the agencies.

Moderator: John Church, University of New South Wales (UNSW) Climate Change Research Center, Sydney, Australia.


  • Eric Leuliette, National Oceanic and Atmospheric Administration (NOAA), College Park, Maryland, USA.
  • Carmen Boening from National Aeronautic and Space Administration Jet Propulsion Laboratory (NASA/JPL), Pasadena, California, USA.
  • Jérôme Benveniste, European Space Agency (ESA), Frascati, Italy.
  • Remko Scharroo, European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), Darmstadt, Germany.
  • Anny Cazenave, Centre Nationale d'Études Spatiales (CNES), Toulouse, France.



Thursday, July 13

Town Hall 2: Meeting evolving requirements of integrated sea level observations for regional and local decision making

The 2006 Sea Level Conference provided a comprehensive statement on requirements for Sea Level information and recommendations on sustaining satellite and in situ observations and developing observing system capabilities.

Over 10 years on, the need for information at the regional and local level is more critical, and more complex, requiring for instance the synthesis of Sea Level information with the likelihood of extreme weather events. As technology and analysis methods evolve, how do we extract maximum benefit from the combination of satellite and in situ observing systems? Can we improve the integration of Sea Level, geodetic and hydro-meteorological data to deliver information fit for meeting regional/local decision-making requirements?


  • Katy Hill, Ocean Observations (GCOS-GOOS-JCOMM), c/o World Meteorological Organisation


  • Gary Mitchum (University of South Florida) Emerging requirements for sustained observations of sea level.
  • Melisa Menendez (Universidad de Cantabria), Advances in Satellite and In situ technologies to meet requirements.
  • Billy Sweet (NOAA) Products for today’s planning decision making on seasonal to multi-decadal timescales


Please note: No caterings will be served for the town hall participants. And no food is permitted into the venue of the town hall