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GPS-Derived Heights Webinars

September 14, 2009
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NOAA’s National Geodetic Survey will present two Webinars on understanding and achieving GPS-derived orthometric heights at centimeter-level accuracy, based on NOAA Technical Memorandums NOS NGS-58 and 59.

Visit to register. (Register separately for each webinar you would like to attend.)

October 6th, 1:00-4:00pm ET


Dave Doyle
The National Spatial Reference System (NSRS)
Methods for Vertical Control-Obtainable Accuracies, National Standards
Vertical Datums - Tidal, NGVD29, NAVD 88
Ellipsoid Heights
Geoid Heights

Bill Henning
Height Modernization Program Background
NOS/NGS 58 Static GPS Guidelines

October 7th, 1:00-4:00pm ET



Dave Doyle
Using CORS and OPUS for Heights
Issues with Passive and Active stations

Bill Henning
Implementing NOS/NGS 59 Static Ortho Guidelines
Using NGS Real Time GNSS Positioning Guidelines for Ortho Heights

Dave Doyle
The Future – GRAV-D

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