Development
The use of geophysical survey is well established in European archaeology, especially in Great Britain, where it was pioneered in the 1940s and 1950s. It is increasingly employed in other parts of the world, and with increasing success as techniques are adapted to unique regional conditions.
In early surveys, measurements were recorded individually and plotted by hand. Although useful results were sometimes obtained, practical applications were limited by the enormous amount of labor required. Data processing was minimal and sample densities were necessarily low.
Although the sensitivity of sensors has improved, and new methods have been developed, the most important developments have been automated data logging and computers to handle and process large amounts of data. Continuing improvements in survey equipment performance and automation have made it possible to rapidly survey large areas. Rapid data collection has also made it practical to achieve the high sample densities necessary to resolve small or subtle features. Advances in processing and imaging software have made it possible to detect, display, and interpret subtle archaeological patterning within the geophysical data.
Read more about this topic: Geophysical Survey (archaeology)
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