ISSN:
1521-1886
Source:
Springer Online Journal Archives 1860-2000
Topics:
Architecture, Civil Engineering, Surveying
,
Geosciences
Notes:
Executive Summary GPS is a scientific method used as an adjunct to geographic information systems (GIS) for determining high-accuracy control points over large areas. Recent improvements in receiver technology, differential surveying, and software have made use of GPS technology more practical for smaller GIS projects. This article compares three different GPSs with occupation times of 2 and 12 min using an existing control network, comparing the location of the points and the distances between points. The control network internal distances vary from 40 to 280 m, and within 2000 m of the nearest second-order National Geodetic Survey (NGS) triangulation station. The partnership of GPS and GIS will lead to higher surveying integrity while improving digital mapping on the ground over small and large areas. It also allows for postsurvey analysis with solutions coming from multiple base stations. Presented here is a case study of how to achieve highly accurate and effective control points using using GPS/GIS, particularly for a small area.
Type of Medium:
Electronic Resource
