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When the time is right: the impact of weather variations on the contrast in earth resistance data

Schmidt, A., Fry, R. ORCID: https://orcid.org/0000-0002-9711-1131, Parkyn, A., Bonsall , J. and Gaffney, C. (2017) When the time is right: the impact of weather variations on the contrast in earth resistance data. In: Jennings, B., Gaffney, C., Sparrow, T. and Gaffney, S. (eds.) AP2017 12th International Conference of Archaeological Prospection. Archaeopress Publishing Ltd, Oxford, UK, pp. 218-219. ISBN 9781784916770

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Abstract/Summary

The successful detection of archaeological features through electrical methods of survey requires a contrast in electrical conductivity between these features and their surrounding soil matrix. Several studies have attempted to identify the 'right time' to do earth resistance surveys, but with limited success. Practitioners need a simple method of using widely available precipitation data for the forecasting of good electrical contrast in archaeological and electrical surveys. By applying a simplified soil and moisture model to seasonal survey series in different years and at different sites, we show how an index formed from the last 15 days of precipitation and its monthly average can be used as a predictor for contrast in many archaeological situations.

Item Type:Book or Report Section
Refereed:Yes
Divisions:Science > School of Archaeology, Geography and Environmental Science > Scientific Archaeology
Science > School of Archaeology, Geography and Environmental Science > Department of Archaeology
ID Code:72753
Publisher:Archaeopress Publishing Ltd

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