Determination of Orthometric Height of NJI2 CORS Station
Publication: Journal of Surveying Engineering
Volume 129, Issue 3
Abstract
Many surveyors use the network of global positioning system (GPS) Continuously Operating Reference Stations (CORS) as accurate “free” control monuments in their projects. The National Geodetic Survey (NGS) publishes and maintains coordinates for these stations in terms of X, Y, Z, and latitude, longitude, and ellipsoidal heights. This information is very useful for horizontal positioning but not for vertical positioning. Establishing the orthometric heights of a CORS station will enhance its usefulness to surveyors and geodesists. In this paper, a method for determining orthometric heights for CORS is described and evaluated. The implementation of the proposed procedure at the NJI2 CORS station produced an orthometric height with a standard deviation of ±1 mm.
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References
Anderson, J. M., and Mikhail, E. M. (1998). Surveying theory and practice, WCB/McGraw-Hill, New York.
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Zilkoski, D. B. (2001). “NAVD 88 GPS-derived orthometric heights. Part 1.” 〈http://www.pobonline.com〉 (July 1, 2001).
Information & Authors
Information
Published In
Journal of Surveying Engineering
Volume 129 • Issue 3 • August 2003
Pages: 110 - 114
Copyright
Copyright © 2003 American Society of Civil Engineers.
History
Received: Nov 29, 2001
Accepted: May 20, 2002
Published online: Jul 15, 2003
Published in print: Aug 2003
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