FGCS Meeting Denver, Colorado June 13, 2007

1. FGCS MeetingDenver, ColoradoJune 13, 2007 Dave Zilkoski, Chair

2. Agenda: 9:00- 9:15 Welcome and Introductions 9:15-10:00 Accomplishments in FY07 10:00-10:15 Break 10:15-12:00 Discussion of Workgroup Charters and Action Plans 12:00- 1:00 Lunch 1:00- 2:00 Specific Topics of Interest 2:00- 2:15 Break 2:15- 4:15 Draft Subcommittee Action Plan for FY08 and Beyond 4:15- 4:30 Wrap-up

3. Accomplishments in FY07: • Submitted FGCS FY07 Workplan to FGDC • Convened FGCS is Silver Spring Feb 07 • Reestablished Four Workgroups • Prepared Draft Workgroup Charters and Action Plans • Presented FGCS Report at February FGDC Meeting • Developed Training Materials for USACE to utilize a common daturm (NAVD88) on all 12,000 miles of levees

4. Discussion of Work Group Charters and Action Plans Instruments: Scope of Work • Seek out sponsors for instrumentation loans • Develop Instrumentation testing procedures • Evaluate Instrumentation using standardized testing procedures • Deliver findings in the form of a report to the FGCS for review • Work with the Methodologies work group in development of guidelines.

5. Discussion of Work Group Charters and Action Plans (cont.) Fixed Reference Stations: Activities • Federal, state, and local governmental agencies will be monitored to determine current and planned fixed GNSS station activities. • Procedures will be developed to assure all fixed sites operated by member agencies are tied to NSRS and provide NSRS positions. • Standards and specifications will be developed for fixed sites. • Common formats for data storage, distribution, and archiving will be developed and implemented through the National Geospatial Data Clearinghouse. • Studies will be undertaken to determine how to optimize a single CORS system including the National Differential Global Positioning Service (NDGPS) to meet a maximum number of Federal GNSS post-processing and real-time requirements.

6. Discussion of Work Group Charters and Action Plans (cont.) Vertical Reference System: Activities • Collect information from users about their vertical reference system needs. • Consider and document the impact on users from changes in the vertical reference system. • Review existing vertical reference systems, including datum definition, data types, and estimates of precision and accuracy. • Develop improvements to strategies to incorporate modern technology information such as GPS into vertical reference systems. • Recommend the appropriate course of action for NGS and other Federal agencies to take with regard to vertical reference frames. • Document and report the findings of the Work Group to the Chairperson and Secretariat, FGCS, for distribution.

7. Discussion of Work Group Charters and Action Plans (cont.) Methodology: Guidelines or "Best Practices Will be Drafted For • USCOE for Positioning Levees and Dams • Real-Time GPS Networks and Kinematic GPS • GPS Orthometric Heights (Draft released October 2005) • Connection Between Tidal and Geodetic Datums in Support of Coastal Communities

8. Discussion of Work Group Charters and Action Plans (cont.) Spectrum: Should Workgroup continue? • Propose Larry Hothem as Chair • GNSS Spectrums • Other Spectrum issues

9. Discussion of Topics of Interest • NDGPS • Requirements of FGCS Member Agencies • Kinematic GPS • Real-time Networks • Guidelines/Standards • GPS-Derived Orthometric Heights • Guidelines/Standards

10. Draft Action Plan for FY08 • To Be Developed at this Meeting

11. Wrap-up • Date and Location of Next Meeting • Summary of Action Items, With Due Date