15 Years of Progress in Radar Altimetry Symposium Venice Lido, Italy, 13-18 March 2006 Abstract Book Table of Content (in order of appearance) Session 0: Thematic Keynote Presentations..... 12 Overview of the Improvements Made on the Empirical Altimetry: Past, Present, and Future......................................12 Determination of the Sea State Bias Correction................... 19 Carl Wunsch..................................................................... 12 Sylvie Labroue, Philippe Gaspar, Joël Dorandeu, Françoise Ogor, Mesoscale Eddy Dynamics observed with 15 years of altimetric and Ouan Zan Zanife.......................................................19 data...........................................................................................12 Calibration of ERS-2, TOPEX/Poseidon and Jason-1 Microwave Rosemary Morrow............................................................. 12 Radiometers using GPS and Cold Ocean Brightness How satellites have improved our knowledge of planetary waves Temperatures .......................................................................... 19 Stuart Edwards and Philip Moore ......................................19 in the oceans...........................................................................12 Paolo Cipollini, Peter G. Challenor, David Cromwell, Ian The Altimetric Wet Tropospheric Correction: Progress since the S. Robinson, and Graham D. Quartly............................... 12 ERS-1 mission ........................................................................ 20 The Ebb and Flow of Tidal Science, and the Impact of Satellite Laurence Eymard and Estelle Obligis.................................20 Altimetry...................................................................................13 Session 2: Cryosphere..........................................21 Richard Ray and Gary Egbert .......................................... 13 Satellite radar altimetry over sea ice -from Seasat to CryoSat21 ARGO, the Integrated Approach ............................................13 Seymour Laxon.................................................................21 Dean Roemmich and John Gould.................................... 13 Mass Balances of the Greenland and Antarctic Ice Sheets from Present-day sea level rise: do we understand what we measure? Satellite Radar Altimetry ........................................................ 21 ..................................................................................................13 Jay Zwally, Anita Brenner, Helen Cornejo, and Donghui Yi21 Anny Cazenave, Alix Lombard, Steve Nerem, and Kien DoMinh 13 Combining satellite altimetry (ERS-2 and ENVISAT) with SAR 15 years of wave height data assimilation............................14 interferometry and SPOT photogrammetry for studies of Austfonna Peter Janssen .................................................................. 14 ice cap (Svalbard)................................................................... 22 Marine Geoid/Gravity/Bathymetry .........................................14 Alexei Kouraev(1,2), Benoît Legresy, and Frédérique Rémy 22 David McAdoo .................................................................. 14 Ice Sheet Topography from ERS Radar Altimetry................ 22 The New Vision of the Cryosphere Thanks to 15 Years of Jonathan Bamber .............................................................22 Altimetry Observations...........................................................14 ENVISAT radar altimeter as a sounding radar on the Amery Ice Frédérique Rémy.............................................................. 14 shelf ......................................................................................... 23 Two decades of inland water monitoring using satellite radar Pascal Lacroix, Benoît Legresy, Richard Coleman, and altimetry ...................................................................................14 Frédérique Rémy..............................................................23 Philippa A. Berry................................................................ 14 Session 1.1: Oceanography: High Frequency ..24 Session 1.1: Oceanography: High Frequency..15 Constraining the mesoscale field.......................................... 24 Progress on Dynamics and Thermodynamics in Western Gregg Jacobs, Jay Shriver, Kirk Whitmer, Ole Martin Smedstad, Boundary Currents...................................................................15 and Harley Hurlburt...........................................................24 Kathryn Kelly, LuAnne Thompson, and Suzanne Dickinson15 The Interaction Between the Mesoscale and Gyre-Scale High-resolution statistical analysis of ocean dynamics using Variabilities of the Argentine Basin....................................... 24 ungridded altimeter data and addressing intrinsic difficulties of Lee-Lueng Fu ..................................................................24 realistic oceanographic fields................................................16 Eddies and Mean Flow in the Antarctic Circumpolar Current25 Roman Glazman............................................................... 16 Sarah Gille.........................................................................25 Temporal Changes in Ocean Eddy Transports....................16 Dynamics of the Near-Uniform Basin-Wide Wind-Driven Sea Level Detlef Stammer, Carl Wunsch, and Kyozo Ueyoshi........... 16 Fluctuation of the Mediterranean Sea................................... 25 Characterizing the variability of the Eastern North Pacific in Time Ichiro Fukumori, Dimitris Menemenlis, and Tong Lee .........25 and Space................................................................................16 Recent advances on the characterization of mesoscale vortices Robin Tokmakian.............................................................. 16 from altimetric maps ............................................................... 25 Decorrelation scales of high resolution turbulent fluxes at the Jordi Isern-Fontanet, Emilio Garcia-Ladona, Jordi Font, and Antonio Turiel....................................................................25 ocean-surface and a method to fill in gaps in satellite data products ...................................................................................17 Session 5.1: Building the 15-Year Altimetric Anastasia Romanou and William B. Rossow..................... 17 Record/Calibration and validation....................27 Session 5.1: Building the 15-Year Altimetric Lessons Learned for Science Processing............................ 27 Philip Callahan ..................................................................27 Record/Calibration and validation.................... 18 Three Decades of Precision Orbit Determination Progress, 20 Years of Improvements to GEOSAT Altimetry................18 Achievements, Future Challenges and its Vital Contribution to John Lillibridge, Walter H.F. Smith, David Sandwell, Remko Scharroo, Frank Lemoine, and Nikita Zelensky..... 18 Oceanography and Climate Research.................................. 27 Sea state bias – 20 years on..................................................18 Scott Luthcke, David Rowlands, Frank Lemoine, Nikita Zelensky, Brian Beckley, Steve Klosko, and Doug Chinn ..................27 Christine Gommengingerand Meric Srokosz...................... 18 Geographically correlated errors – problem solved? ........... 28 Wolfgang Bosch................................................................28 2 15 years of improvements in ocean altimetry performance: a Anita C. Brenner, John P. DiMarzio, and H. Jay Zwally .....39 review.......................................................................................28 EKE and circulation variability in the Labrador Sea and the North Joël Dorandeu ................................................................. 28 Atlantic subpolar gyre............................................................. 40 Estimating Altimeter Drift from Tide Gauges: Past, Present and Andreas Funk, Peter Brandt, Friedrich Schott, Lars Czeschel, and Future.......................................................................................29 Carsten Eden ...................................................................40 Gary Mitchum.................................................................... 29 Session 4: Hydrology and Land Processes .......41 Session 2: Cryosphere.......................................... 30 Global analysis of multi-mission echoes over the earth’s land Hydrological networks beneath Antarctica: New signals from surface from 15 years of altimeter missions......................... 41 altimetry ...................................................................................30 Monica Dowson and Philippa A.M. Berry ...........................41 Andrew Shepherd and Duncan Wingham........................ 30 Use of Topex-Poseidon and Envisat Dual-Frequency Radar Historical understanding of ice sheet dynamics versus evolution Altimeters Data over Continental Surfaces........................... 41 of topography...........................................................................30 Fabrice Papa, Benoît Legresy, and Frédérique Rémy......41 Frédérique Rémy, Benoît Legrésy, and Laurent Testut... 30 Two decades of land altimetry – achievements and challenges 42 Arctic Ocean geoid, ice thickness and mean sea level – the Philippa A. Berry ................................................................42 ArcGICE project ......................................................................31