Linford, N. T., (2013). PORTLAND CASTLE, DORSET REPORT ON GEOPHYSICAL SURVEY, NOVEMBER 2012. English Heritage Geophysics Team.

Title
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Title:
PORTLAND CASTLE, DORSET REPORT ON GEOPHYSICAL SURVEY, NOVEMBER 2012
Series
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Series:
English Heritage Geophysics Team unpublished report series
Downloads
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Downloads:
englishh4-257357_1.pdf (2 MB) : Download
DOI
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DOI
https://doi.org/10.5284/1041336
Publication Type
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Publication Type:
Report (in Series)
Abstract
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Abstract:
A Ground Penetrating Radar (GPR) survey was conducted at Portland Castle, Portland Bill, Dorset, to assist with the investigation of ongoing water ingress through the external walls into the Captain's chamber. Access for the survey was provided by a two-tier scaffold platform over the vertical face of the external wall, to assess whether the GPR technique could reveal any useful information regarding the integrity of the structure. The results confirm sufficient penetration of the radar signal to detect reflections from the internal face of the wall and identified known features, such as the timber sockets protruding into the masonry visible from the interior. A potential area of degradation within the core structure of the wall is also indicated within the upper courses of masonry, which contrasts with the response over sound elements of the building.
Author
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Author:
Neil T Linford
Publisher
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Publisher:
English Heritage Geophysics Team
Other Person/Org
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Other Person/Org:
Historic England (OASIS Reviewer)
Dorset SMR (OASIS Reviewer)
Year of Publication
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Year of Publication:
2013
Locations
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Locations:
Site: Portland Castle
County: DORSET
District: WEYMOUTH AND PORTLAND
Parish: PORTLAND
Country: England
Grid Reference: 368441, 74357 (Easting, Northing)
Locations
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Subjects / Periods:
Find: NONE None
Monus: FORT Post Medieval
Identifiers
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OASIS Id: englishh4-257357
OBIB: English Heritage Research Department Report Series 40-2013
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OASIS
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Created Date
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Created Date:
18 Aug 2017
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