Archaeological Ground Penetrating Radar Surveys under Variable Soil Moisture: Visual and Numerical Results

Isabel Morris, Branko Glišić, Andre Gonciar

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Archaeological sites commonly use ground penetrating radar (GPR) as a subsurface archaeological prospection method that can increase the efficiency of archaeological operations. GPR surveys are overwhelmingly sensitive to variations in water content, soil type, and site-specific interference sources. This sensitivity is often neglected in archaeological geophysics applications in favor of collecting all GPR data on a site in the same conditions. GPR scans of a partially excavated Roman villa consisting of different construction materials and phases (limestone, andesite) in central Romania were collected in both dry (pre-rain) and wet (post-rain) conditions with a 500 MHz GPR antenna. Especially in time/depth slices, some subtle limestone features are clearer in the wet scans than the dry scans. Comparison of wet and dry scans via both qualitative visual interpretations and quantitative attribute analysis offers valuable information about features that are nearly invisible in standard conditions. Wet scans enhance the dielectric contrast between some materials, revealing features and unique insights about the site that are not available with scans collected in a single set of soil moisture conditions.

Original languageEnglish (US)
Title of host publication2018 17th International Conference on Ground Penetrating Radar, GPR 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781538657775
DOIs
StatePublished - Aug 20 2018
Event17th International Conference on Ground Penetrating Radar, GPR 2018 - Rapperswil, Switzerland
Duration: Jun 18 2018Jun 21 2018

Publication series

Name2018 17th International Conference on Ground Penetrating Radar, GPR 2018

Other

Other17th International Conference on Ground Penetrating Radar, GPR 2018
CountrySwitzerland
CityRapperswil
Period6/18/186/21/18

All Science Journal Classification (ASJC) codes

  • Earth-Surface Processes
  • Instrumentation

Keywords

  • GPR
  • archaeological prospection
  • attribute analysis
  • material identification
  • material properties

Fingerprint Dive into the research topics of 'Archaeological Ground Penetrating Radar Surveys under Variable Soil Moisture: Visual and Numerical Results'. Together they form a unique fingerprint.

Cite this