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National Height Modernization Program Overview January 24, 2006 Juliana Blackwell

National Height Modernization Program Overview January 24, 2006 Juliana Blackwell Height Modernization Program Manager. Height Modernization Overview. Definition Background Needs and Benefits Outreach and Education. D E F I N I T I O N. Height Modernization is ….

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National Height Modernization Program Overview January 24, 2006 Juliana Blackwell

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  1. National Height Modernization Program Overview January 24, 2006 Juliana Blackwell Height Modernization Program Manager

  2. Height Modernization Overview • Definition • Background • Needs and Benefits • Outreach and Education

  3. D E F I N I T I O N Height Modernization is … …the establishment of accurate, reliable heights using GPS technology in conjunction with traditional leveling, gravity, and modern remote sensing information.

  4. D E F I N I T I O N . . . inspect your foundation. Before you build . . .

  5. D E F I N I T I O N Height Modernization Objective NAVD 88 NSRS GEODETIC CONTROL Reliable Accurate Cost-effective Standardized Legally Established

  6. Ellipsoid (GPS) Orthometric (Leveling) Geoid (Gravity & modeling) D E F I N I T I O N What Types of Heights are Involved?

  7. D E F I N I T I O N Building the System ? Models, Tools ? Outreach, Education, Expertise Guidelines, Specifications ?

  8. B A C K G R O U N D The Roots of Height Modernization In 1994 - First meeting held in Sacramento, CA • Some heights in CA in error by more than a meter • GPS could be immediately used to meet some of California’s requirements • Necessary for the implementation of NAVD 88 In 1998, $1.0 M was added to NGS budget to perform Height Modernization Study

  9. B A C K G R O U N D • In 1999, Height Modernization not mentioned • In 2000, $500K added to NGS’ budget for Height Modernization planning • In 2001, $2.25M added to NGS budget to perform Height Modernization in North Carolina, to support the California Spatial Reference Center (CSRC), and to support NGS related Height Modernization activities • Also in 2001, NOAA is directed to work with Louisiana and Wisconsin to assess their requirements for Height Modernization

  10. Height Modernization Appropriations (FY01-FY06) B A C K G R O U N D

  11. FY06 Height Modernization Funding ($ in thousands) B A C K G R O U N D *New state

  12. Legend Spatial Reference Centers Regional Leaders Lead Agencies Height Modernization States Interested States B A C K G R O U N D Height Modernization Status - 2006

  13. N E E D S & B E N E F I T S Why Height Modernization? NOAA’s Height Modernization Program provides the means to determine accurate (land) elevations effectively (doing the right thing) and efficiently (doing things right).

  14. N E E D S & B E N E F I T S

  15. N E E D S & B E N E F I T S Tectonic Movement California Spatial Reference Center Master Plan for a spatial reference network in California CORS and traditional monuments along transportation corridors Implementation dependent on technological developments (wide-area RTK, real-time networks, and wireless communications) Complete data set of NAVD88 heights will be computed for the California CORS network.

  16. 13 MONTGOMERY 12 17 CORS/Extensometers PAMs TMC Site 9 11 8 2 7 18 LKHU 1 HARRIS 19 NE 6 5 3 HOUSTON ADKS 28 TMC 15 24 4 FORT BEND 27 16 10 00 20 14 21 GALVESTON 22 23 26 N E E D S & B E N E F I T S Water Management Harris-Galveston Subsidence District

  17. N E E D S & B E N E F I T S Floodplain Mapping North Carolina Cooperative Technical State

  18. N E E D S & B E N E F I T S Transportation Wisconsin Department of Transportation Began in 1998 - Wisconsin Department of Transportation Improve height data (the vertical component of the geodetic network) Eliminate inconsistencies between horizontal and vertical Supplement control where marks have been destroyed Create network that can fully utilize GPS technologies (cost effective)

  19. N E E D S & B E N E F I T S Subsidence Louisiana Spatial Reference Center

  20. N E E D S & B E N E F I T S Safety Measuring Heights Along Evacuation Routes

  21. N E E D S & B E N E F I T S MAP Modernization • Flood Insurance Risk Maps • Determining High Water Marks • Elevation Certificates • Dam Safety • Mitigation

  22. N E E D S & B E N E F I T S Mapping and GIS Alabama Department of Revenue Alabama Department of Transportation oversees surveying tasks Goals • Primary Base Network 40 to 50 km grid • Leveling to Primary Base Marks • CORS • County surveys

  23. N E E D S & B E N E F I T S Water Levels University of Southern Mississippi • Purchased equipment for 11 CORS  • Eight Gulf Coast counties selected for CORS • Developed plan to extend CORS network throughout the State (30 CORS) • USM Gulf Coast Research Lab installed National Water Level Observation Network (NWLON) station co-located with CORS • Long-term plan to install two other NWLON stations along the coast • Contract survey work planned • Height Modernization survey along Mississippi River (Cairo, IL to the Gulf) completed in cooperation with USACE

  24. N E E D S & B E N E F I T S Spatial Reference Center of Washington Ensure a high-accuracy geodetic reference network in WA (GPS, monuments, CORS, VRS networks, geodetic models). Ensure that survey data provided to NGS for inclusion into National Spatial Reference System (NSRS) database.  Promote the Washington Spatial Reference System. Ensure availability of time-dependent geospatial information. Promote the development of specifications and guidelines for GPS surveys Serve as an educational source for users and potential users. Foster cooperation and partnerships

  25. TCOON N E E D S & B E N E F I T S Texas Spatial Reference Center Texas A&M-Corpus Christi • Texas Coastal Ocean Observation Network (TCOON) • Improve geoid model in Texas/Gulf Coast Region • Co-locate GPS CORS at Water Level gauges • Measure/monitor subsidence in Harris Galveston Coastal Subsidence District

  26. N E E D S & B E N E F I T S Kentucky Height Modernization 1st -- CORS 2nd -- GPS on BMs Improved Geoid Model Morehead State University

  27. N E E D S & B E N E F I T S Summary • Good control produces consistent, accurate results • Eliminates inconsistencies between horizontal and vertical control data • Supplements control where marks have been destroyed or are deemed unusable • Utilizes GPS technologies as a cost effective positioning tool • Denser control can reduce survey costs

  28. O U T R E A C H & E D U C A T I O N NGS’ Role and Responsibilities Program Management -- Congressional briefings, budget, grants management, coordination, outreach Outreach/Technology Transfer -- advisors, forums, workshops, conferences, publications, training, outsourcing Project Leadership-- project planning, specifications, guidelines, CORS management Quality Control -- training, assess techniques, survey control, load projects into NGS database Research and Development-- software development, remote sensing, modeling, investigate GPS techniques, antenna calibrations

  29. O U T R E A C H & E D U C A T I O N Partnerships Harris-Galveston Subsidence District State Agencies – North Carolina Geodetic Survey South Carolina Geodetic Survey Wisconsin Department of Transportation Alabama Department of Revenue Washington Department of Natural Resources Spatial Reference Centers – California, Louisiana, Washington Universities – University of Southern Mississippi North Carolina A&T State University Louisiana State University University of California/Scripps Texas A&M University-Corpus Christi Morehead State University

  30. O U T R E A C H & E D U C A T I O N Forums, Conferences & Workshops • Height Modernization Forum, AL • GPS Real-Time Networks in the Northwest, WA • Height Modernization Workshop, NC • Height Modernization Workshop, MO • Height Modernization Forum, AK • National Height Modernization Workshop, MD • Trimble International User Conference, NV Height Modernization Forum, Marquette, MI Height Modernization Forum, Flint, MI Hawaii Association of Land Surveyors, HI Kentucky Association of Professional Surveyors, KY Tennessee Association of Professional Surveyors, TN

  31. O U T R E A C H & E D U C A T I O N www.ngs.noaa.gov

  32. O U T R E A C H & E D U C A T I O N Height Modernization Web Page

  33. C O N C L U S I O N The Future • Continue to investigate opportunities to modify procedures and processes to improve efficiencies. • Provide outreach training and support to states interested in Height Modernization. • Continue efforts to maintain and grow the program. • Research new technology to enhance HMP efforts.

  34. Contact Information: Juliana Blackwell Height Modernization Program Manager 301-713-1054 Juliana.Blackwell@noaa.gov www.ngs.noaa.gov/heightmod/

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