Overview of Height Modernization Christine Gallagher Eastern States

Overview of Height Modernization Christine Gallagher Eastern States Regional Webinar March 4, 2014

Establishing accurate heights… 1. is important 2. can be expensive 3. can be technically challenging

History of Height Modernization: 1998 CA grassroots meeting Initial study funded 2000 -2010 Development of GPS Funding begins, up to 18 states NGS 59 GRAV-D 2022 -future 1997 NGS 58 2007 -2022* Technology and approach continues to evolve 2008 1980 s 1994 Programmatic development, tied to Congressional funding New Vertical Datum

Height Mod includes: • (Historic) congressionallydirected funds for states Federally funded Engaged with no federal funding Spatial Reference Centers Regional Leaders Other funded partners • Methods and guidelines (58 & 59) for the whole country = HARN = Primary = Secondary = Local = Existing line = New line

Height Mod includes: • New data collection, studies, and pilot projects • Improved model & tools for the whole country GRAV-D Green = FY 11 and earlier Orange = FY 12 White = FY 13 Blue = FY 14 Plan Filled white = Underway Filled red = Incomplete Map from Nov. 2013 GEOID 12 A

NGS Ten-Year Plan & HMOD Plan Updated NGS Ten-year Plan Goal 1: Support NSRS users today Goal 2: Modernize & improve NSRS Goals 3 -5: Expand stakeholder base; improve workforce and organizational functionality P A R A L L E L G O A L S Height Modernization National Plan Goal 1: Support NAVD 88 users today Goal 2: Modernize & improve vertical datum Goal 3: Increase technical capacity with stakeholder base & workforce

Eastern Regional States

Questions Christine Gallagher Program Analyst National Geodetic Survey Email: Christine. Gallagher@noaa. gov Phone: (301) 713 -3231 x 105 http: //www. ngs. noaa. gov/heightmod/