Real-Time Positioning Guidelines for GIS Users
Author(s): William Henning
Real-time (RT) Global Navigation Satellite System (GNSS) positioning technology has brought the GIS professional from sub-meter level data collection towards centimeter level accuracy. Many data layers, such as infrastructure, cadastre and others with embedded surveying and engineering information, can benefit from this increased accuracy. The question is: what is the correct way to collect this data? The plethora of variables associated with RT positioning demand that users have a thorough knowledge of the best methods to use and pratfalls to avoid. NOAA’s National Geodetic Survey (NGS) has released RT user guidelines for public comment to provide such guidance. This presentation will touch upon the major RT positioning elements to provide reliable, homogenous, and accurate positions for integration into the GIS database.
National Geodetic Survey
1315 East West Highway
Silver Spring , Maryland 20910