Urban archaeological investigations using surface 3D Ground Penetrating Radar and Electrical Resistivity Tomography methods

서지정보

· 발행기관 : 한국지구물리.물리탐사학회
· 수록지 정보 : 지구물리와 물리탐사 / 12권 / 1호 / 56 ~ 68페이지
· 저자명 : Nikos Papadopoulos, Apostolos Sarris, 이명종, 김정호

초록

Ongoing and extensive urbanisation, which is frequently accompanied with careless construction works, may
threaten important archaeological structures that are still buried in the urban areas. Ground Penetrating Radar (GPR) and
Electrical Resistivity Tomography (ERT) methods are most promising alternatives for resolving buried archaeological
structures in urban territories. In this work, three case studies are presented, each of which involves an integrated geophysical
survey employing the surface three-dimensional (3D) ERT and GPR techniques, in order to archaeologically characterise the
investigated areas.
The test field sites are located at the historical centres of two of the most populated cities of the island of Crete, in Greece.
The ERT and GPR data were collected along a dense network of parallel profiles. The subsurface resistivity structure was
reconstructed by processing the apparent resistivity data with a 3D inversion algorithm. The GPR sections were processed
with a systematic way, applying specific filters to the data in order to enhance their information content. Finally, horizontal
depth slices representing the 3D variation of the physical properties were created. The GPR and ERT images significantly
contributed in reconstructing the complex subsurface properties in these urban areas. Strong GPR reflections and highresistivity
anomalies were correlated with possible archaeological structures. Subsequent excavations in specific places at
both sites verified the geophysical results. The specific case studies demonstrated the applicability of ERT and GPR
techniques during the design and construction stages of urban infrastructure works, indicating areas of archaeological
significance and guiding archaeological excavations before construction work.

참고자료

· 없음