Assessing the applicability of terrestrial laser scanning for mapping englacial conduits.
his is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike licence (http://creativecommons.org/licenses/by-nc-sa/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the same Creative Commons l...
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ftunivhertford:oai:uhra.herts.ac.uk:2299/19988 2023-05-15T15:12:56+02:00 Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. Kamintzis, J.E. Jones, J. P. P. Irvine-Fynn, T. D. L. Holt, T. O. Bunting, P. Jennings, S. J. A. Porter, Philip Hubbard, B. Agriculture, Food and Veterinary Sciences Geography, Environment and Agriculture Water and Environment Department of Biological and Environmental Sciences School of Life and Medical Sciences Agriculture and Environmental Management Research 2018-02-01 12 http://hdl.handle.net/2299/19988 http://www.scopus.com/inward/record.url?scp=85042232147&partnerID=8YFLogxK eng eng Journal of Glaciology School of Life and Medical Sciences Kamintzis , J E , Jones , J P P , Irvine-Fynn , T D L , Holt , T O , Bunting , P , Jennings , S J A , Porter , P & Hubbard , B 2018 , ' Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. ' , Journal of Glaciology , vol. 64 , no. 243 , pp. 37-48 . https://doi.org/10.1017/jog.2017.81 0022-1430 PURE: 13484143 PURE UUID: b5bc5eec-3b2b-414a-9cc1-264b053ef390 Scopus: 85042232147 http://hdl.handle.net/2299/19988 http://www.scopus.com/inward/record.url?scp=85042232147&partnerID=8YFLogxK Open arctic glaciology glacier mapping glaciological instruments and methods remote sensing Earth-Surface Processes 2018 ftunivhertford 2022-01-07T00:01:22Z his is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike licence (http://creativecommons.org/licenses/by-nc-sa/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the same Creative Commons licence is included and the original work is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use. The morphology of englacial drainage networks and their temporal evolution are poorly characterised, particularly within cold ice masses. At present, direct observations of englacial channels are restricted in both spatial and temporal resolution. Through novel use of a terrestrial laser scanning (TLS) system, the interior geometry of an englacial channel in Austre Brøggerbreen, Svalbard, was reconstructed and mapped. Twenty-eight laser scan surveys were conducted in March 2016, capturing the glacier surface around a moulin entrance and the uppermost 122 m reach of the adjoining conduit. The resulting point clouds provide detailed 3-D visualisation of the channel with point accuracy of 6.54 mm, despite low (<60%) overall laser returns as a result of the physical and optical properties of the clean ice, snow, hoar frost and sediment surfaces forming the conduit interior. These point clouds are used to map the conduit morphology, enabling extraction of millimetre-to-centimetre scale geometric measurements. The conduit meanders at a depth of 48 m, with a sinuosity of 2.7, exhibiting teardrop shaped cross-section morphology. This improvement upon traditional surveying techniques demonstrates the potential of TLS as an investigative tool to elucidate the nature of glacier hydrological networks, through reconstruction of channel geometry and wall composition. Peer reviewed Final Published version Other/Unknown Material Arctic glacier Journal of Glaciology Svalbard University of Hertfordshire: UH Research Archive Arctic Svalbard Teardrop ENVELOPE(163.917,163.917,-78.150,-78.150) Journal of Glaciology 64 243 37 48 |
institution |
Open Polar |
collection |
University of Hertfordshire: UH Research Archive |
op_collection_id |
ftunivhertford |
language |
English |
topic |
arctic glaciology glacier mapping glaciological instruments and methods remote sensing Earth-Surface Processes |
spellingShingle |
arctic glaciology glacier mapping glaciological instruments and methods remote sensing Earth-Surface Processes Kamintzis, J.E. Jones, J. P. P. Irvine-Fynn, T. D. L. Holt, T. O. Bunting, P. Jennings, S. J. A. Porter, Philip Hubbard, B. Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. |
topic_facet |
arctic glaciology glacier mapping glaciological instruments and methods remote sensing Earth-Surface Processes |
description |
his is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike licence (http://creativecommons.org/licenses/by-nc-sa/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the same Creative Commons licence is included and the original work is properly cited. The written permission of Cambridge University Press must be obtained for commercial re-use. The morphology of englacial drainage networks and their temporal evolution are poorly characterised, particularly within cold ice masses. At present, direct observations of englacial channels are restricted in both spatial and temporal resolution. Through novel use of a terrestrial laser scanning (TLS) system, the interior geometry of an englacial channel in Austre Brøggerbreen, Svalbard, was reconstructed and mapped. Twenty-eight laser scan surveys were conducted in March 2016, capturing the glacier surface around a moulin entrance and the uppermost 122 m reach of the adjoining conduit. The resulting point clouds provide detailed 3-D visualisation of the channel with point accuracy of 6.54 mm, despite low (<60%) overall laser returns as a result of the physical and optical properties of the clean ice, snow, hoar frost and sediment surfaces forming the conduit interior. These point clouds are used to map the conduit morphology, enabling extraction of millimetre-to-centimetre scale geometric measurements. The conduit meanders at a depth of 48 m, with a sinuosity of 2.7, exhibiting teardrop shaped cross-section morphology. This improvement upon traditional surveying techniques demonstrates the potential of TLS as an investigative tool to elucidate the nature of glacier hydrological networks, through reconstruction of channel geometry and wall composition. Peer reviewed Final Published version |
author2 |
Agriculture, Food and Veterinary Sciences Geography, Environment and Agriculture Water and Environment Department of Biological and Environmental Sciences School of Life and Medical Sciences Agriculture and Environmental Management Research |
author |
Kamintzis, J.E. Jones, J. P. P. Irvine-Fynn, T. D. L. Holt, T. O. Bunting, P. Jennings, S. J. A. Porter, Philip Hubbard, B. |
author_facet |
Kamintzis, J.E. Jones, J. P. P. Irvine-Fynn, T. D. L. Holt, T. O. Bunting, P. Jennings, S. J. A. Porter, Philip Hubbard, B. |
author_sort |
Kamintzis, J.E. |
title |
Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. |
title_short |
Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. |
title_full |
Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. |
title_fullStr |
Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. |
title_full_unstemmed |
Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. |
title_sort |
assessing the applicability of terrestrial laser scanning for mapping englacial conduits. |
publishDate |
2018 |
url |
http://hdl.handle.net/2299/19988 http://www.scopus.com/inward/record.url?scp=85042232147&partnerID=8YFLogxK |
long_lat |
ENVELOPE(163.917,163.917,-78.150,-78.150) |
geographic |
Arctic Svalbard Teardrop |
geographic_facet |
Arctic Svalbard Teardrop |
genre |
Arctic glacier Journal of Glaciology Svalbard |
genre_facet |
Arctic glacier Journal of Glaciology Svalbard |
op_relation |
Journal of Glaciology School of Life and Medical Sciences Kamintzis , J E , Jones , J P P , Irvine-Fynn , T D L , Holt , T O , Bunting , P , Jennings , S J A , Porter , P & Hubbard , B 2018 , ' Assessing the applicability of terrestrial laser scanning for mapping englacial conduits. ' , Journal of Glaciology , vol. 64 , no. 243 , pp. 37-48 . https://doi.org/10.1017/jog.2017.81 0022-1430 PURE: 13484143 PURE UUID: b5bc5eec-3b2b-414a-9cc1-264b053ef390 Scopus: 85042232147 http://hdl.handle.net/2299/19988 http://www.scopus.com/inward/record.url?scp=85042232147&partnerID=8YFLogxK |
op_rights |
Open |
container_title |
Journal of Glaciology |
container_volume |
64 |
container_issue |
243 |
container_start_page |
37 |
op_container_end_page |
48 |
_version_ |
1766343555207397376 |