1 / 12

Ocean Products Oversight Panel (OPOP) Jason-2 Altimetry Products

Ocean Products Oversight Panel (OPOP) Jason-2 Altimetry Products. Presenter: David Donahue May 6, 2009. Integrated Product Team (IPT). OSTM (Ocean Surface Topography Mission), follow-on to TOPEX/Poseidon and Jason-1. IPT Lead: David Donahue IPT Backup Lead: Linda Stathoplos NESDIS Team:

miette
Download Presentation

Ocean Products Oversight Panel (OPOP) Jason-2 Altimetry Products

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Ocean Products Oversight Panel (OPOP)Jason-2 Altimetry Products Presenter: David Donahue May 6, 2009 OPOP 6 May 09

  2. Integrated Product Team (IPT) • OSTM (Ocean Surface Topography Mission), follow-on to TOPEX/Poseidon and Jason-1 • IPT Lead: David Donahue • IPT Backup Lead: Linda Stathoplos • NESDIS Team: • STAR: John Lillibridge, Remko Scharroo (Altimetrics) • OSDPD: Thomas Smith, Cecil Paris, Gene Legg (now Aerospace), Selina Nauman, Brian Little • OSD: Walid Bannoura, Angelo Wade, Phil Green • Data Center: Ken Casey (NODC), Bob Rank (CLASS), Jeremy Throwe (CLASS; DB Consulting) • Others: Jason-2 Project Team (OSO, AVTEC, Aerospace, Perot Systems) • User Team • Lead: John Lillibridge • Others: NOAA (NESDIS, NWS), CNES, EUMETSAT, ECMWF, NASA (JPL), Navy (NRL, NAVO) • Oversight Panel (OP) lead: Ocean POP • Other OPs involved: None OPOP 6 May 09

  3. The Altimetric System For Sea Surface Height: • Range = travel_time * c / 2 • SSH = orbit_altitude - range Small  out of ~1300 km • Dyn. Topo. = SSH - geoid ~1 m out of  120 m • Path Delay Corrections: • Wet Troposphere • Dry Troposphere • Ionosphere OPOP 6 May 09

  4. Anatomy of a Waveform Range Attitude • 105 radar pulses averaged to create each 20Hz waveform • Comprised of 128 bins of ~3 nanosec duration (45 cm) • 4 values determined by fitting • 20Hz values averaged to create 1 Hz record Example Jason-1 waveforms that show open-ocean variability Wind Speed SWH (Significant Wave Height) OPOP 6 May 09

  5. OPOP 6 May 09

  6. Level-2 Product Users • User community • NOAA • NMFS • NWS-NCEP-Ocean Prediction Center • NWS-NCEP-EMC-Global Climate & Weather Modeling, Marine Modeling & Analysis • NESDIS-STAR-Lab for Satellite Altimetry • Navy – NRL & NAVO • NASA – JPL & GSFC • Others • Bureau of Meteorology, Melbourne, Australia • Private Industry (Surfline (US), SatOC (UK)) • Benefit to user • Operational Geophysical Data Records (OGDRs) • Coastal and Global Ocean nowcasting and forecasting • Altimetry assimilation into global and regional ocean models • Forecasting hurricane intensification • Hazard monitoring • Interim and Final Science Geophysical Data Records (IGDR/GDRs) • Monitoring sea level rise, global climate change • Forecasting hurricane intensification • Matching of tagged animal locations to oceanographic context/habitat OPOP 6 May 09

  7. Specifications OPOP 6 May 09

  8. Accuracy/Resolution Courtesy of Remko Scharroo, NOAA Measurement System Engineer OPOP 6 May 09

  9. Forecaster Workstation Display – Jason 2 Significant Wave Heights (SWH) (feet) NWW3-Jason-2 Differ (Jason-2 lower SWH) NWW3-Jason-2 match OPOP 6 May 09

  10. Dissemination NOAA Server Data Distribution Server (DDS) Dell 2950 Web-1 Dell 2950 Egret Dell 2950 Heron Dell 2950 Test Dell 2950 Swan Dell 2950 Goose Dell 2950 Test Dell 2950 Web-2 Dell 2950 Test ESPC Data Processing Context Satellite Navigation Services Generates orbit info for SOCC Jason-2 ESPC Components TM-NRT (Near Real Time Analyzer) - Produces NOAA OGDR & OGDR-SSHA - CNES provided software - Communicates only with File Manager • Distributes OGDRs to NRT Users • Passes ALL files for archiving to CLASS • Passes OGDR-BUFR file to NWS GTS gateway • FILE MANAGER • Internal File transfers & Log management • Front end to TM-NRT processor • NRTAVS QA, BUFR, Metadata modules • 4-Partner data exchange • CDAs telemetry • Auxiliary & Ancillary files Partner Zone (Backup String) DMZ NODC/GTS Users and CLASS • (Comprehensive Large Array-data Stewardship System) • Complete archive of files used to generate Level-2 products • Distributes both NRT and Offline products to users • WEB SERVER • Hosts Log files & Operator Log monitoring tool • Hosts NRTAVS QA system web pages & PDF reports OPOP 6 May 09

  11. NRTAVS Product Quality Assurance SSH SWH Wind • Originally developed by JPL for NOAA • Modified by NOAA/AVTEC to provide syslog monitoring • 64-bit clean version for File Manager RedHat ES • NetCDF reader developed by NOAA for all Jason-1 /Jason-2 • OGDRs, IGDRs & GDRs • Latest version provided to ESPC, EUMETSAT & JPL OPOP 6 May 09

  12. Jason-2 Overview • Project Highlights • JUN 08: Jason-2/OSTM satellite launched • OCT 08: Jason-2 Ground System handed over to NOAA from CNES • DEC 08: Distribution to Users began • MAR 09: SPSRB declared OGDRs ready to go operational (contingent on completing security remediations on the ESPC Jason-2 machines) • Product Status • ESPC Contractor support is 24x7 • Software upgrades and fixes are regularly deployed • OGDR production routinely meets timeliness metric • OGDR product quality meets specs • GDRs being blessed/archived • Product Enhancements • The joint NASA/CNES Ocean Surface Topography Science Team (OSTST) supports basic research, calibration, validation, and analysis activities associated with Jason-2 Ocean Surface Topography Mission • Principle Investigators funded to calibrate and validate Jason-2 • First OSTST meeting was November 10-12, 2008 in Nice, France • Next OSTST meeting scheduled for June 2009 in Seattle, WA • Future Products • CNES-provided science processing software will be upgraded November 2009 (TM-NRT v3.0) • We may put SSHA into the buffer (BUFR) product (not currently scheduled). OPOP 6 May 09

More Related