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An Analysis of the Factors that Impact Accuracy During the Acquisition of Archaeological Geospatial Data Through the Use of GPS Units

Author(s): Spencer Mitchell ; Erik Marinkovich ; Jessica Blinman

Year: 2015

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Summary

In recent decades, archaeology has seen an increase in the use of geospatial technology. This paper weighs the factors that impact the accuracy of the acquisition of geospatial data in the field and seeks to establish a system to determine the ideal times for data collection through the use of GPS units. Control points were established both domestically, within the United States, and in northwestern Belize. Each point was input into a database in which we recorded a set of factors including; constellation density, PDOP and weather conditions. Satellite constellations were recorded off the Global Navigation Satellite System Planning Online website and compared to the satellites that were actually present at the time of collection. The data was then subject to differential correction and inlayed into ArcMap 10. We conducted a comparative study and found which variables were ideal for accurate data collection. Accuracy was determined by the amount of displacement between points at the given location.

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An Analysis of the Factors that Impact Accuracy During the Acquisition of Archaeological Geospatial Data Through the Use of GPS Units. Spencer Mitchell, Jessica Blinman, Erik Marinkovich. Presented at The 80th Annual Meeting of the Society for American Archaeology, San Francisco, California. 2015 ( tDAR id: 397940)


Keywords

Geographic Keywords
Mesoamerica


Spatial Coverage

min long: -107.271; min lat: 12.383 ; max long: -86.353; max lat: 23.08 ;

Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America