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The OPUS-DB Experience

Learn about the OPUS-DB experience, from registering and uploading observations to NGS approval. Discover how OPUS-DB improves data processing, maintenance of NSRS, and the addition of GPS on bench marks.

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The OPUS-DB Experience

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  1. The OPUS-DB Experience User and NGS perspectives

  2. Passive monuments Datasheets http://geodesy.noaa.gov/cgi-bin/datasheet.prl Active GPS CORS data http://geodesy.noaa.gov/CORS OPUS processing http://geodesy.noaa.gov/OPUS How to Access NSRS

  3. Passive monuments Add observations via BLUEBOOKING Online recovery recvy_entry_www.prl Online GPS observations via OPUS-DB Active GPS Join Cooperative CORS http://geodesy.noaa.gov/CORS/Coop/ How to Maintain NSRS

  4. Why reinvent bluebooking?

  5. OPUS-DB OBSERVATION DATA STREAM photo(s) description form GPS data Observation log NGS website: OPUS-DB NGS magic DATASHEET

  6. Simple is better!

  7. The OPUS-DB Experience LIVE! 1. user registers 2. NGS approves 3. user uploads 4. NGS reviews 5. user approves 6. NGS approves

  8. The OPUS-DB Experience 1. user registers 2. NGS approves 3. user uploads 4. NGS reviews 5. user approves 6. NGS approves

  9. The OPUS-DB Experience 1. user registers 2. NGS approves 3. user uploads 4. NGS reviews 5. user approves 6. NGS approves LIVE!

  10. The OPUS-DB Experience 1. user registers 2. NGS approves 3. user uploads 4. NGS reviews 5. user approves 6. NGS approves

  11. The OPUS-DB Experience 1. user registers 2. NGS approves 3. user uploads 4. NGS reviews 5. user approves 6. NGS approves LIVE!

  12. The OPUS-DB Experience 1. user registers 2. NGS approves 3. user uploads 4. NGS reviews 5. user approves 6. NGS approves

  13. Bench mark elevation retained Position accuracy improved 95 feet! One more tie between GRS80-NAVD88.

  14. OPUS-DB benefits • Data submittal • Faster • cheaper • Consistent data processing • Improve maintenance of NSRS • Add GPS on bench marks • Archive PLSS corners?

  15. OPUS-DB limitations • GPS data only • PAGES software only • No direct tie to adjacent monuments • No redundancy • Reduced oversight • Idiot-proofing? • Field logs are not archived

  16. OPUS-DB data quality • Registered, trained users • 4+ hours of static GPS • OPUS error checking • NGS reviews each submittal • Datasheet includes: • “Caveat emptor” warning • Datasheet includes DQA statistics • Agency attribution • Coordinates: first, best, average

  17. Many Flavors of OPUS Planned • OPUS • $$$ receiver, hours of data • OPUS-DB • $$$ receiver, hours of data, share results • OPUS Projects • Multiple $$$ receivers, share results • OPUS Rapid Static • $$$ receiver, minutes of data • OPUS GIS • ¢¢ receiver, minutes of data

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