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Christopher Watson 1 Neil White 2,3 Richard Coleman 1,2,3 John Church 2,3

Jason-1 OST Science Team. Updated Results Hobart OSTST Meeting March 2007. Updated In-Situ Calibration Results from Bass Strait. Christopher Watson 1 Neil White 2,3 Richard Coleman 1,2,3 John Church 2,3. 1 University of Tasmania 2 CSIRO Marine and Atmospheric Research

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Christopher Watson 1 Neil White 2,3 Richard Coleman 1,2,3 John Church 2,3

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  1. Jason-1 OST Science Team Updated Results Hobart OSTST Meeting March 2007 Updated In-Situ Calibration Results from Bass Strait Christopher Watson1 Neil White2,3 Richard Coleman1,2,3 John Church2,3 1 University of Tasmania 2 CSIRO Marine and Atmospheric Research 3 Antarctic Climate and Ecosystems CRC

  2. Bass Strait Updated Results Review Pg 1 of 11

  3. Bass Strait Updated Results Review Pg 2 of 11

  4. Bass Strait Updated Results Overview Updated Results: • T/P: Existing MGDR-B and RGDR (using only new orbits from RGDR) • Cycles 344 to 365 (Formation Flight Period) • Jason-1: GDR-A and GDR-B data • Cycles 001 to 022 (Formation Flight Period) • Cycles 067 to 135 • Jason-1: GDR-B data • Cycles 001 to 022, 067 to 185 Pg 3 of 11

  5. Existing and New RGDR (New Orbit) TOPEX/Poseidon Results Formation Flight, Cycles 344 to 365 Mean T/P Bias: Existing MGDR-B Data: 0 mm New (RGDR) Orbits: -13 mm Pg 4 of 11

  6. Jason-1 GDR-A and GDR-B Results Formation Flight, Cycles 001 to 022 Mean J-1 Bias (GDR-A and GDR-B Data): GDR-A (POE Orbit): +152 mm GDR-A (GPS Orbit): +128 mm Pg 5 of 11

  7. Jason-1 GDR-A and GDR-B Results Formation Flight, Cycles 001 to 022 Mean J-1 Bias (GDR-A and GDR-B Data): GDR-A (POE Orbit): +152 mm GDR-A (GPS Orbit): +128 mm GDR-B Data: +105 mm Pg 6 of 11

  8. Jason-1 GDR-A and GDR-B Results Cycles 67 to 135 Mean J-1 Bias (GDR-A and GDR-B Data): GDR-A Data: +132 mm GDR-B Data: +106 mm Pg 7 of 11

  9. Jason-1 GDR-B Results Cycles 1 to 185 Mean J-1 Bias: GDR-B Data: +107 mm Pg 8 of 11

  10. Bass Strait Site – Jason-2 Preparations underway for Jason-2 cal-val Similar methodology planned: GPS buoys and longer term mooring deployments offshore from tide gauge and CGPS. National Collaborative Research Infrastructure Strategy (NCRIS) has funded 100+ CGPS sites for deployment in Australia (2007 -). Australian tide gauge sites high on the priority list. Burnie to get inland CGPS in addition to TG CGPS. NCRIS has also partly funded an equipment test of the FLTRS system at the Bass Strait site (2007/08). We look forward to this collaboration with our French colleagues. Currently planning logistics, site selection etc. Pg 9 of 11

  11. Bass Strait Site – Jason-2 Pg 10of11

  12. Bass Strait Site – Jason-2 Pg 11of11

  13. Questions?

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