DETERMINATION OF ORTHOMETRIC HEIGHTS USING DGPS
This research included two major components: (1) Evaluate the precision of GEOID96 over Florida and investigate possible places for improvement; and (2) Develop and test simplified guidelines for the observation of ellipsoid heights using the Global Positioning System (GPS). The evaluation of the existing, and generation of an improved, geoid model required access to specialized computer programs and gravity anomaly data. This report reviews the work performed to improve the gravimetric geoid model and the development and testing of guidelines for the use of GPS to obtain ellipsoid heights of adequate accuracy to be combined with the geoid model to derive orthometric heights accurate to 2 to 5 cm.
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Corporate Authors:
University of Florida, Gainesville
Department of Civil Engineering, P.O. Box 116580
Gainesville, FL United States 32611-6580Florida Department of Transportation
Haydon Burns Building, 605 Suwanee Street
Tallahassee, FL United States 32301Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Carter, W E
- Shrestha, R L
- Publication Date: 1999-6
Language
- English
Media Info
- Features: Appendices; Figures; References; Tables;
- Pagination: 59 p.
Subject/Index Terms
- TRT Terms: Accuracy; Databases; Global Positioning System; Gravimetric analysis; Gravity
- Uncontrolled Terms: Ellipsoid heights; Geoid models; Orthometric heights
- Subject Areas: Design; Highways; Planning and Forecasting; I21: Planning of Transport Infrastructure;
Filing Info
- Accession Number: 00784628
- Record Type: Publication
- Report/Paper Numbers: WPI 0510820,, Final Report
- Contract Numbers: B-B298
- Files: NTL, TRIS, USDOT, STATEDOT
- Created Date: Feb 28 2000 12:00AM