Geodetic Coordinate Systems in Florida: GPS Contribution
Publication: Journal of Surveying Engineering
Volume 117, Issue 2
Abstract
Measurements and results derived from the three‐dimensional Global Positioning System (GPS) are more accurate than classical geodetic observations and methods used until recently to define conventional horizontal (geometric) da‐tums, e.g., the North American Datum of 1983, the final readjustment of which was finished in 1986, thus the notation NAD 83 (1986). The situation may not be strictly the same with respect to vertical (physical) datums such as the National Geodetic Vertical Datum of 1929 (NGVD 29) because an accurate geoid is required. In this paper comparisons of standard datums [NAD 83 (1986), NGVD 29] with recent GPS results in the state of Florida are analyzed. Their relationship with a very long baseline interferometry (VLBI) reference frame is also discussed. The investigation shows that overall the relative accuracy of NAD 83 (1986) in Florida is between 1/200,000 and 1/500,000 or from five to two parts per million (ppm), yet still not as good as the two‐dimensional results derived from GPS.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Bodnar, A. N. (1990a). “A high‐resolution geoid for the United States.” EOS Trans. Amer. Geophysical Union 71(46), 1,793.
2.
Bodnar, A. N. (1990b). “National geodetic reference system. Statewide upgrade policy.” Proc. ACSMS‐ASPRS Fall Conv., American Congress on Surveying and Mapping, Nov. 5–10.
3.
Burton, L. L., Jr. (1989). “Analysis of the county level land information system in the state of Florida: User trends and perceived accuracy requirements.” Proc. GIS/LIS'89, American Congress on Surveying and Mapping, Nov. 26–30, 348–366.
4.
Craymer, M. R., Wells, D. E., Vaníček, P., and Devlin, R. I. (1990). “Specifications for urban GPS surveys.” Surveying and Land Information Systems, 50(4), 251–259.
5.
Ethridge, M. M. (1989). “Does the National Geodetic Reference System need to be upgraded?” Point of Beginning Magazine, 15(1), 26, 30–31.
6.
Geometric geodetic accuracy standards and specifications for using GPS relative positioning techniques. Version 5.0. (1988). Federal Geodetic Control Committee, Nat.Geodetic Information Branch, Nat. Oceanic and Atmospheric Administration, Rockville, Md.
7.
Hajela, D. (1990). “Obtaining centimeter‐precision heights by GPS observations over small areas.” GPS World, 1(1), 55–59.
8.
Mader, G. L., Schenewerk, M. S., and Chin, M. M. (1990). OMNI 1.00. users guide. National Geodetic Information Branch, Nat. Oceanic and Atmospheric Administration, Rockville, Md.
9.
McCarthy, D. D. (1989). “IERS standards (1989). “IERS Technical Note 3, Central Bureau of Int. Earth Rotation Service, Observatoire de Paris, Paris, France.
10.
“NEOS. The U.S. National Earth Orientation Service.” (1990). National Geodetic Information Branch, NOAA, Rockville, Md.
11.
Rapp, R. H., and Pavlis, N. K. (1990). “The development and analysis of geopo‐tential coefficient models to spherical harmonic degree 360.” J. Geophysical Res., 95, Dec., 21, 885–21, 911.
12.
Schwarz, C. R., and Wade, E. B. (1990). “The North American Datum of 1983: Project methodology and execution.” Bulletin Géodésique, 64(1), 28–62.
13.
Snay, R. A. (1989). “Accuracy analysis.” North American Datum of 1983, C. R. Schwarz, ed., National Geodetic Information Branch, Nat. Oceanic and Atmospheric Administration, Rockville, Md.
14.
Snay, R. A. (1990). “Accuracy analysis for the NAD 83 Geodetic Reference System.” Bulletin Géodésique, 64(1), 1–27.
15.
Soler, T., and Hothem, L. D. (1989). “Important parameters used in geodetic transformations.” J. Surv. Engrg., ASCE, 115(4), 414–417.
16.
Standards and specifications for geodetic control networks. (1984). Federal Geodetic Control Committee, Nat. Geodetic Information Branch, Nat. Oceanic and Atmospheric Administration, Rockville, Md.
17.
Strange, W. E. (1990). “Overview of NGS high accuracy GPS network activities in North America.” EOS, Trans. Amer. Geophysical Union, 71(17), 417.
18.
Taylor, R. L. (1989). “Florida's high precision geodetic network—an update.” Backsights and For sights, Fourth Quarter, 11–19.
Information & Authors
Information
Published In
Journal of Surveying Engineering
Volume 117 • Issue 2 • May 1991
Pages: 77 - 96
Copyright
Copyright © 1991 ASCE.
History
Published online: May 1, 1991
Published in print: May 1991
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.