Resolving dimensions: a comparison between ERT imaging and 3D modelling of the barge Crowie, South Australia

Kleanthis Simyrdanis, Marian Bailey, Ian Moffat, Amy Roberts, Wendy Van Duivenvoorde, Gianluca Cantoro, Antonis Savvidis, Kurt Bennett, Jarrad Kowlessar

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Downloads (Pure)

Abstract

Three-dimensional (3D) modelling is becoming a ubiquitous technology for the interpretation of cultural heritage objects. However most 3D models are based on geomatic data such as surveying, laser scanning or photogrammetry and therefore rely on the subject of the study being visible. This chapter presents the case study of Crowie, a submerged and partially buried barge wrecked near the town of Morgan in South Australia. Crowie was reconstructed using two alternative approaches; one based on a combination of historic photographs and computer graphics and the second based on geophysical data from electrical resistivity tomography (ERT). ERT has been rarely used for maritime archaeology despite providing 3D representation under challenging survey conditions, such as in
shallow and turbid water. ERT was particularly successful on Crowie for mapping the external metal cladding, which was recognisable based on very low resistivity values. An alternative 3D model was created using historic photographs
and dimensions for Crowie in combination with information from acoustic geophysical surveys. The excellent correspondence between these models demonstrates the efficacy of ERT in shallow maritime archaeology contexts.
Original languageEnglish
Title of host publication3D Recording and Interpretation for Maritime Archaeology
EditorsJohn McCarthy, Jonathan Benjamin, Trevor Winton, Wendy van Duivenvoorde
Place of PublicationCham
PublisherSpringer International Publishing
Chapter11
Pages175-186
Number of pages12
Volume31
ISBN (Electronic)978-3-030-03635-5
ISBN (Print)978-3-030-03634-8
DOIs
Publication statusPublished - 2019

Publication series

NameCoastal Research Library
PublisherSpringer International Publishing
Volume31
ISSN (Print)2211-0577
ISSN (Electronic)2211-0585

Bibliographical note

Open Acces.s This chapter is licensed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.
org/licenses/by/4.0/), which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate
credit to the original author(s) and the source, provide a link to the Creative Commons licence and indicate if changes were made.
The images or other third party material in this chapter are included in the chapter’s Creative Commons licence, unless indicated otherwise in
a credit line to the material. If material is not included in the chapter’s Creative Commons licence and your intended use is not permitted by statutory
regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

Keywords

  • Electrical resistivity tomography
  • Geophysics
  • Riverine archaeology
  • Historic shipwreck
  • Maritime archaeology

Fingerprint Dive into the research topics of 'Resolving dimensions: a comparison between ERT imaging and 3D modelling of the barge Crowie, South Australia'. Together they form a unique fingerprint.

Cite this