Rejuvenating Pre-GPS era geophysical surveys using The National Map

Journal of Surveying Engineering
By: , and 



Old geophysical surveys [pre–Global Positioning System (GPS)] stand as valuable, largely untapped sources of scientific data. If data from these surveys were in a format that had reasonable accuracy, availability, and ease of access, they could be more widely used. In this paper, a pre-GPS survey is integrated into a modern geographic database, in this case, The National Map (TNM). The ultimate goal is to improve the accuracy, precision, provenance, and ease of access of the geospatial components of archived geophysical data. An unique set of data sources was assembled for this purpose. A comparison of these different data sources indicates that more than 80% of stations were positioned on The National Map within 15 m (horizontal) and 2 m (vertical) of the GPS-derived coordinates for each station within the survey. Although online database coordinate accuracy continues to improve, these results imply that web databases have already matured to a point where it is possible to integrate pre-GPS era survey coordinate data with reasonable positional accuracy.

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Publication type Article
Publication Subtype Journal Article
Title Rejuvenating Pre-GPS era geophysical surveys using The National Map
Series title Journal of Surveying Engineering
DOI 10.1061/(ASCE)SU.1943-5428.0000068
Volume 138
Issue 2
Year Published 2013
Language English
Publisher American Society of Civil Engineers
Contributing office(s) Center of Excellence for Geospatial Information Science (CEGIS)
Description 9 p.
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Surveying Engineering
First page 57
Last page 65
Country United States
State Missouri
County Crawford County;Dent County
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