Prototype wireless sensors for monitoring subsurface processes in snow and firn
The detection and monitoring of meltwater within firn presents a significant monitoring challenge. We explore the potential of small wireless sensors (ETracer+, ET+) to measure temperature, pressure, electrical conductivity and thus the presence or absence of meltwater within firn, through tests in...
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International Glaciological Society
2018
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ftucl:oai:eprints.ucl.ac.uk.OAI2:10059153 2023-12-24T10:16:17+01:00 Prototype wireless sensors for monitoring subsurface processes in snow and firn Bagshaw, EA Karlsson, NB Lok, LB Lishman, B Clare, L Nicholls, KW Burrow, S Wadham, JL Eisen, O Corr, H Brennan, P Dahl-Jensen, D 2018-12 text https://discovery.ucl.ac.uk/id/eprint/10059153/1/Brennan_Prototype%20wireless%20sensors%20for%20monitoring%20subsurface%20processes%20in%20snow%20and%20firn_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10059153/ eng eng International Glaciological Society https://discovery.ucl.ac.uk/id/eprint/10059153/1/Brennan_Prototype%20wireless%20sensors%20for%20monitoring%20subsurface%20processes%20in%20snow%20and%20firn_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10059153/ open Journal of Glaciology , 64 (248) pp. 887-896. (2018) glaciological instruments and methods melt-surface polar firn snow/ice surface processes Article 2018 ftucl 2023-11-27T13:07:26Z The detection and monitoring of meltwater within firn presents a significant monitoring challenge. We explore the potential of small wireless sensors (ETracer+, ET+) to measure temperature, pressure, electrical conductivity and thus the presence or absence of meltwater within firn, through tests in the dry snow zone at the East Greenland Ice Core Project site. The tested sensor platforms are small, robust and low cost, and communicate data via a VHF radio link to surface receivers. The sensors were deployed in low-temperature firn at the centre and shear margins of an ice stream for 4 weeks, and a ‘bucket experiment’ was used to test the detection of water within otherwise dry firn. The tests showed the ET+ could log subsurface temperatures and transmit the recorded data through up to 150 m dry firn. Two VHF receivers were tested: an autonomous phase-sensitive radio-echo sounder (ApRES) and a WinRadio. The ApRES can combine high-resolution imaging of the firn layers (by radio-echo sounding) with in situ measurements from the sensors, to build up a high spatial and temporal resolution picture of the subsurface. These results indicate that wireless sensors have great potential for long-term monitoring of firn processes. Article in Journal/Newspaper East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core Journal of Glaciology University College London: UCL Discovery Greenland |
institution |
Open Polar |
collection |
University College London: UCL Discovery |
op_collection_id |
ftucl |
language |
English |
topic |
glaciological instruments and methods melt-surface polar firn snow/ice surface processes |
spellingShingle |
glaciological instruments and methods melt-surface polar firn snow/ice surface processes Bagshaw, EA Karlsson, NB Lok, LB Lishman, B Clare, L Nicholls, KW Burrow, S Wadham, JL Eisen, O Corr, H Brennan, P Dahl-Jensen, D Prototype wireless sensors for monitoring subsurface processes in snow and firn |
topic_facet |
glaciological instruments and methods melt-surface polar firn snow/ice surface processes |
description |
The detection and monitoring of meltwater within firn presents a significant monitoring challenge. We explore the potential of small wireless sensors (ETracer+, ET+) to measure temperature, pressure, electrical conductivity and thus the presence or absence of meltwater within firn, through tests in the dry snow zone at the East Greenland Ice Core Project site. The tested sensor platforms are small, robust and low cost, and communicate data via a VHF radio link to surface receivers. The sensors were deployed in low-temperature firn at the centre and shear margins of an ice stream for 4 weeks, and a ‘bucket experiment’ was used to test the detection of water within otherwise dry firn. The tests showed the ET+ could log subsurface temperatures and transmit the recorded data through up to 150 m dry firn. Two VHF receivers were tested: an autonomous phase-sensitive radio-echo sounder (ApRES) and a WinRadio. The ApRES can combine high-resolution imaging of the firn layers (by radio-echo sounding) with in situ measurements from the sensors, to build up a high spatial and temporal resolution picture of the subsurface. These results indicate that wireless sensors have great potential for long-term monitoring of firn processes. |
format |
Article in Journal/Newspaper |
author |
Bagshaw, EA Karlsson, NB Lok, LB Lishman, B Clare, L Nicholls, KW Burrow, S Wadham, JL Eisen, O Corr, H Brennan, P Dahl-Jensen, D |
author_facet |
Bagshaw, EA Karlsson, NB Lok, LB Lishman, B Clare, L Nicholls, KW Burrow, S Wadham, JL Eisen, O Corr, H Brennan, P Dahl-Jensen, D |
author_sort |
Bagshaw, EA |
title |
Prototype wireless sensors for monitoring subsurface processes in snow and firn |
title_short |
Prototype wireless sensors for monitoring subsurface processes in snow and firn |
title_full |
Prototype wireless sensors for monitoring subsurface processes in snow and firn |
title_fullStr |
Prototype wireless sensors for monitoring subsurface processes in snow and firn |
title_full_unstemmed |
Prototype wireless sensors for monitoring subsurface processes in snow and firn |
title_sort |
prototype wireless sensors for monitoring subsurface processes in snow and firn |
publisher |
International Glaciological Society |
publishDate |
2018 |
url |
https://discovery.ucl.ac.uk/id/eprint/10059153/1/Brennan_Prototype%20wireless%20sensors%20for%20monitoring%20subsurface%20processes%20in%20snow%20and%20firn_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10059153/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core Journal of Glaciology |
genre_facet |
East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core Journal of Glaciology |
op_source |
Journal of Glaciology , 64 (248) pp. 887-896. (2018) |
op_relation |
https://discovery.ucl.ac.uk/id/eprint/10059153/1/Brennan_Prototype%20wireless%20sensors%20for%20monitoring%20subsurface%20processes%20in%20snow%20and%20firn_VoR.pdf https://discovery.ucl.ac.uk/id/eprint/10059153/ |
op_rights |
open |
_version_ |
1786203694840152064 |