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Solving the Grid-to-Ground Problem when Using High Precision GNSS in Archaeological Mapping

  • William (Fred) Limp (a1) and Adam Barnes (a2)
Abstract
Abstract

Increasingly, high-precision GPS/GNSS (global positioning system/global satellite navigation system) based real-time-kinematic methods are being used in the mapping of archaeological sites. However, when utilizing high-precision satellite-based methods for archaeological location purposes, there is a significant but usually unanticipated problem that must first be addressed if accurate measurements are to be made. Simply put, unless proper correction methods are used, horizontal distances between two locations determined by the GNSS method will differ from the measurements that are made by traditional survey methods. This difference between the two measurements is often referred to as the grid-to-ground problem. This article provides a process to address this problem.

Cada vez más GPS/GNSS de alta precisión (sistema de posicionamiento global/sistema global de navegación por satélite) basado en métodos cinemáticos de tiempo real se están utilizando en el mapeo de sitios arqueológicos. Sin embargo, cuando se utilizan métodos de alta precisión basados en satélites, hay un problema importante y generalmente no previsto que debe de resolverse antes de medir ubicaciones arqueológicas con exactitud. En pocas palabras, a menos que se utilicen métodos adecuados de corrección horizontal, las distancias medidas entre dos ubicaciones determinadas por el método GNSS diferirán con las realizadas por métodos tradicionales de prospección. Esta diferencia entre las dos medidas se refiere a menudo como el problema de la cuadrícula a la tierra. Este artículo proporciona un proceso para solucionar este problema.

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References
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Advances in Archaeological Practice
  • ISSN: -
  • EISSN: 2326-3768
  • URL: /core/journals/advances-in-archaeological-practice
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