Digital optical televiewing of ice boreholes
Digital optical televiewing, recently developed to log and map terrestrial boreholes, provides a complete orientated image of borehole walls at a resolution of 1 mm along hole and typically <1 mm around hole. Here we provide an overview of optical televiewer (OPTV) technology and operation, and o...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/167477 2023-05-15T16:57:29+02:00 Digital optical televiewing of ice boreholes Hubbard, Bryn Roberson, Sam Samyn, Denis Merton-Lyn, Derek 2008 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/167477 https://dipot.ulb.ac.be/dspace/bitstream/2013/167477/3/doi_151107.pdf en eng uri/info:doi/10.3189/002214308787779988 uri/info:scp/61349147808 https://dipot.ulb.ac.be/dspace/bitstream/2013/167477/3/doi_151107.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/167477 1 full-text file(s): info:eu-repo/semantics/restrictedAccess Journal of Glaciology, 54 (188 Géologie et minéralogie info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2008 ftunivbruxelles 2022-06-12T21:03:51Z Digital optical televiewing, recently developed to log and map terrestrial boreholes, provides a complete orientated image of borehole walls at a resolution of 1 mm along hole and typically <1 mm around hole. Here we provide an overview of optical televiewer (OPTV) technology and operation, and outline the potential contributions of the technique to ice-mass research with reference to an OPTV log of a borehole ∼21 m deep drilled in the lower accumulation area of Glacier de Tsanfleuron, Switzerland. The OPTV image of this borehole successfully reveals a variety of visibly contrasting ice types. These ice types have been characterized and their orientation mapped and, on the basis of this information, interpreted as: (1) primary foliation; (2) summer/autumn erosion surfaces; and (3) incipient foliation. Importantly, unrolled OPTV images can be inverted to recreate a virtual image of the borehole core, potentially, for the first time, allowing ice cores to be orientated. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Journal of Glaciology DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
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Open Polar |
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DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Géologie et minéralogie |
spellingShingle |
Géologie et minéralogie Hubbard, Bryn Roberson, Sam Samyn, Denis Merton-Lyn, Derek Digital optical televiewing of ice boreholes |
topic_facet |
Géologie et minéralogie |
description |
Digital optical televiewing, recently developed to log and map terrestrial boreholes, provides a complete orientated image of borehole walls at a resolution of 1 mm along hole and typically <1 mm around hole. Here we provide an overview of optical televiewer (OPTV) technology and operation, and outline the potential contributions of the technique to ice-mass research with reference to an OPTV log of a borehole ∼21 m deep drilled in the lower accumulation area of Glacier de Tsanfleuron, Switzerland. The OPTV image of this borehole successfully reveals a variety of visibly contrasting ice types. These ice types have been characterized and their orientation mapped and, on the basis of this information, interpreted as: (1) primary foliation; (2) summer/autumn erosion surfaces; and (3) incipient foliation. Importantly, unrolled OPTV images can be inverted to recreate a virtual image of the borehole core, potentially, for the first time, allowing ice cores to be orientated. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Hubbard, Bryn Roberson, Sam Samyn, Denis Merton-Lyn, Derek |
author_facet |
Hubbard, Bryn Roberson, Sam Samyn, Denis Merton-Lyn, Derek |
author_sort |
Hubbard, Bryn |
title |
Digital optical televiewing of ice boreholes |
title_short |
Digital optical televiewing of ice boreholes |
title_full |
Digital optical televiewing of ice boreholes |
title_fullStr |
Digital optical televiewing of ice boreholes |
title_full_unstemmed |
Digital optical televiewing of ice boreholes |
title_sort |
digital optical televiewing of ice boreholes |
publishDate |
2008 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/167477 https://dipot.ulb.ac.be/dspace/bitstream/2013/167477/3/doi_151107.pdf |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, 54 (188 |
op_relation |
uri/info:doi/10.3189/002214308787779988 uri/info:scp/61349147808 https://dipot.ulb.ac.be/dspace/bitstream/2013/167477/3/doi_151107.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/167477 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/restrictedAccess |
_version_ |
1766049034409082880 |