Value of Node Closest to HARVEST = 150 mm Value of Node Closest to SENETOSA = 117 mm Value of Node Closest to BURNIE = 154 mm SOUTH Mean = mm = 10.9 mm TROPICS Mean = mm = 11.4 mm NORTH Mean = mm = 12.7 mm SOUTH Mean = mm = 10.8 mm TROPICS Mean = mm = 10.7 mm NORTH Mean = mm = 12.0 mm Descending Tracks Ascending Tracks Jason-1 - T/P Sea Surface Height Formation Flying Phase (Jason-1 Cycles 1-21) FROM SPACE TO SEASEA. Orbit (gravity field, tracking data, ). Range (bias, retracking, ). Corrections. Ionosphere. TMR vs. JMR. SSB. Other corrections Cal/Val and data consistency Toward a better consistency between father and son But also in terms of stability (models, instruments, ) In terms of bias Are we able to link altimetric missions at few mm and mm/yr level? With overlap phases RGDR 1&2 vs MGDR GDR-B vs GDR-A With small or large gaps Local and global calibration/validation: part 1, Tuesday, March 13 Local and global calibration/validation: part 2, Wednesday, March 14 Linking different mission Bias as a function of gap Bias as a function of gap gdrb Ascending tracksDescending tracks Harvest Corsica Bass Strait Radial orbit differences (mm) Jason-1: CNES POE (JGM3, SLR+DORIS) - JPL Reduced Dynamic (GRACE, GPS) Bass Strait: Rate = 4.9 mm/yr Descending Tracks GDR Orbit JPL GPS: Radial Rate for Cycles 190 10100 mm/yr Harvest: Rate = 6.6 mm/yr Corsica: Rate = 0.5 mm/yr Ascending Tracks All Tracks Geographically Correlated Radial Orbit Error Rate CNES Reprocessed RMS =5 mm RMS= 4 mm Ascending Tracks Descending Tracks All Tracks Repeat Cycles 7687 CNES POE (GDR) RMS =9 mm RMS = 7 mm B. Haines Geographically Orbit Errors Revealed by GPS Orbits mm Jason-1: CNES POE (JGM3, SLR+DORIS) - JPL Reduced Dynamic (GRACE, GPS) Harvest Senetosa POE - GPS: ascending tracks Bass Strait POE - GPS: descending tracks Drift of Radial Orbit differences (mm/yr) TOPEX/Poseidon: NASA - CNES POE mm JMR - TMR During Formation Flying Phase Jason-1 GDR: Cycles 1-21 T/P MDGR + TMR Drift Correction: Cycles