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dc.contributor.authorSou, Li Z.
dc.contributor.authorBond, Julie M.
dc.contributor.authorDockrill, Stephen J.
dc.contributor.authorHepher, J.
dc.contributor.authorRawlinson, A.
dc.contributor.authorSparrow, Thomas
dc.contributor.authorTurner, V.
dc.contributor.authorWilson, L.
dc.contributor.authorWilson, Andrew S.
dc.date.accessioned2022-08-19T19:00:01Z
dc.date.accessioned2022-09-28T12:27:02Z
dc.date.available2022-08-19T19:00:01Z
dc.date.available2022-09-28T12:27:02Z
dc.date.issued2022-04
dc.identifier.citationSou L, Bond J, Dockrill S et al (2022) Getting the measure of brochs: using survey records old and new to investigate Shetland's Iron Age archaeology. In: Ch'ng E, Chapman H, Gaffney VL et al (Eds.) Visual heritage: Digital approaches in heritage science. London: Springer. 271-303.en_US
dc.identifier.urihttp://hdl.handle.net/10454/19158
dc.descriptionNoen_US
dc.description.abstractBrochs are monumental Iron Age (c.400–200 BC) drystone towers or roundhouses. They are only found in Scotland, particularly the Atlantic north and west. Whilst the structural layout of brochs has long been debated, few measured surveys have been conducted. Three significant broch sites form the tentative World Heritage site of “Mousa, Old Scatness and Jarlshof: the Zenith of Iron Age Shetland” (UNESCO in Mousa, Old Scatness and Jarlshof: the zenith of Iron Age Shetland, UNESCO (2019) Mousa, Old Scatness and Jarlshof: the zenith of Iron Age Shetland. http://whc.unesco.org/en/tentativelists/5677. Accessed 9 Aug 2019). All three sites have undergone new surveys as part of a collaborative doctoral partnership research project. This chapter presents a diachronic perspective using digital documentation techniques to detect stone displacement and weathering at the site of Old Scatness using historic imagery, including photographs from the Old Scatness excavations (1995–2006) and regular condition monitoring undertaken by Shetland Amenity Trust to undertake retrospective digital structure-from-motion (SfM) photogrammetry. Whilst point clouds and 3D meshes were successfully generated from low-resolution digital images, analogue film transparencies without metadata could not produce accurate geospatial data without manually trying to extant reference data. It was possible to detect displacements in stonework over time by comparing two meshes together and measuring the distances between vertex point pairs. The reliability and accuracy of these results were dependent on how well pairs of meshes could be aligned.en_US
dc.language.isoenen_US
dc.publisherSpringer Nature
dc.subjectLaser scanningen_US
dc.subjectPhotogrammetryen_US
dc.subjectStructural analysisen_US
dc.subjectBrochen_US
dc.subjectConservationen_US
dc.subjectShetlanden_US
dc.subjectArchive dataen_US
dc.subjectData reuseen_US
dc.subjectRetrospectiveen_US
dc.titleGetting the measure of brochs: using survey records old and new to investigate Shetland's Iron Age archaeologyen_US
dc.status.refereedYesen_US
dc.date.Accepted2022
dc.date.application2022-04-06
dc.typeBook chapteren_US
dc.type.versionNo full-text in the repositoryen_US
dc.identifier.doihttps://doi.org/10.1007/978-3-030-77028-0_14
dc.rights.licenseUnspecifieden_US
dc.date.updated2022-08-19T19:00:04Z
refterms.dateFOA2022-09-28T12:27:53Z
dc.openaccess.statusclosedAccessen_US


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