Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice
Abstract Subglacial hydrological systems require innovative technological solutions to access and observe. Wireless sensor platforms can be used to collect and return data, but their performance in deep and fast-moving ice requires quantification. We report experimental results from Cryoegg: a spher...
Published in: | Journal of Glaciology |
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Language: | English |
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Cambridge University Press (CUP)
2021
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Online Access: | http://dx.doi.org/10.1017/jog.2021.16 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000162 |
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crcambridgeupr:10.1017/jog.2021.16 2024-09-15T18:15:38+00:00 Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice Prior-Jones, Michael R. Bagshaw, Elizabeth A. Lees, Jonathan Clare, Lindsay Burrow, Stephen Werder, Mauro A. Karlsson, Nanna B. Dahl-Jensen, Dorthe Chudley, Thomas R. Christoffersen, Poul Wadham, Jemma L. Doyle, Samuel H. Hubbard, Bryn 2021 http://dx.doi.org/10.1017/jog.2021.16 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000162 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 67, issue 264, page 627-640 ISSN 0022-1430 1727-5652 journal-article 2021 crcambridgeupr https://doi.org/10.1017/jog.2021.16 2024-08-14T04:04:15Z Abstract Subglacial hydrological systems require innovative technological solutions to access and observe. Wireless sensor platforms can be used to collect and return data, but their performance in deep and fast-moving ice requires quantification. We report experimental results from Cryoegg: a spherical probe that can be deployed into a borehole or moulin and transit through the subglacial hydrological system. The probe measures temperature, pressure and electrical conductivity in situ and returns all data wirelessly via a radio link. We demonstrate Cryoegg's utility in studying englacial channels and moulins, including in situ salt dilution gauging. Cryoegg uses VHF radio to transmit data to a surface receiving array. We demonstrate transmission through up to 1.3 km of cold ice – a significant improvement on the previous design. The wireless transmission uses Wireless M-Bus on 169 MHz; we present a simple radio link budget model for its performance in cold ice and experimentally confirm its validity. Cryoegg has also been tested successfully in temperate ice. The battery capacity should allow measurements to be made every 2 h for more than a year. Future iterations of the radio system will enable Cryoegg to transmit data through up to 2.5 km of ice. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 67 264 627 640 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Subglacial hydrological systems require innovative technological solutions to access and observe. Wireless sensor platforms can be used to collect and return data, but their performance in deep and fast-moving ice requires quantification. We report experimental results from Cryoegg: a spherical probe that can be deployed into a borehole or moulin and transit through the subglacial hydrological system. The probe measures temperature, pressure and electrical conductivity in situ and returns all data wirelessly via a radio link. We demonstrate Cryoegg's utility in studying englacial channels and moulins, including in situ salt dilution gauging. Cryoegg uses VHF radio to transmit data to a surface receiving array. We demonstrate transmission through up to 1.3 km of cold ice – a significant improvement on the previous design. The wireless transmission uses Wireless M-Bus on 169 MHz; we present a simple radio link budget model for its performance in cold ice and experimentally confirm its validity. Cryoegg has also been tested successfully in temperate ice. The battery capacity should allow measurements to be made every 2 h for more than a year. Future iterations of the radio system will enable Cryoegg to transmit data through up to 2.5 km of ice. |
format |
Article in Journal/Newspaper |
author |
Prior-Jones, Michael R. Bagshaw, Elizabeth A. Lees, Jonathan Clare, Lindsay Burrow, Stephen Werder, Mauro A. Karlsson, Nanna B. Dahl-Jensen, Dorthe Chudley, Thomas R. Christoffersen, Poul Wadham, Jemma L. Doyle, Samuel H. Hubbard, Bryn |
spellingShingle |
Prior-Jones, Michael R. Bagshaw, Elizabeth A. Lees, Jonathan Clare, Lindsay Burrow, Stephen Werder, Mauro A. Karlsson, Nanna B. Dahl-Jensen, Dorthe Chudley, Thomas R. Christoffersen, Poul Wadham, Jemma L. Doyle, Samuel H. Hubbard, Bryn Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice |
author_facet |
Prior-Jones, Michael R. Bagshaw, Elizabeth A. Lees, Jonathan Clare, Lindsay Burrow, Stephen Werder, Mauro A. Karlsson, Nanna B. Dahl-Jensen, Dorthe Chudley, Thomas R. Christoffersen, Poul Wadham, Jemma L. Doyle, Samuel H. Hubbard, Bryn |
author_sort |
Prior-Jones, Michael R. |
title |
Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice |
title_short |
Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice |
title_full |
Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice |
title_fullStr |
Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice |
title_full_unstemmed |
Cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice |
title_sort |
cryoegg: development and field trials of a wireless subglacial probe for deep, fast-moving ice |
publisher |
Cambridge University Press (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/jog.2021.16 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021000162 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 67, issue 264, page 627-640 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2021.16 |
container_title |
Journal of Glaciology |
container_volume |
67 |
container_issue |
264 |
container_start_page |
627 |
op_container_end_page |
640 |
_version_ |
1810453516285640704 |