The opus-db experience User and ngs perspectives

The OPUS-DB Experience

• User and NGS perspectives

How to Access NSRS

• 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 Maintain NSRS

• 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/

Why reinvent bluebooking?

Simple is better!

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

The OPUS-DB Experience

• 1. user registers

• 2. NGS approves

• 3. user uploads

• 4. NGS reviews

• 5. user approves

• 6. NGS approves

OPUS-DB benefits

• Data submittal

• Faster
• cheaper

• Consistent data processing

• Improve maintenance of NSRS

• Add GPS on bench marks
• Archive PLSS corners?

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

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

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