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Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow
Journal of Glaciology, Volume: 68, Issue: 270, Pages: 720 - 732
Swansea University Author: Bernd Kulessa
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© The Author(s), 2021. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence
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DOI (Published version): 10.1017/jog.2021.128
Abstract
To understand snow structure and snowmelt timing, information about flows of liquid water within the snowpack is essential. Models can make predictions using explicit representations of physical processes, or through parameterization, but it is difficult to verify simulations. In situ observations g...
Published in: | Journal of Glaciology |
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ISSN: | 0022-1430 1727-5652 |
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Cambridge University Press (CUP)
2022
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URI: | https://cronfa.swan.ac.uk/Record/cronfa58636 |
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2022-09-26T15:36:53.1197222 v2 58636 2021-11-12 Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow 52acda616e9f6073cbebf497def874c9 0000-0002-4830-4949 Bernd Kulessa Bernd Kulessa true false 2021-11-12 BGPS To understand snow structure and snowmelt timing, information about flows of liquid water within the snowpack is essential. Models can make predictions using explicit representations of physical processes, or through parameterization, but it is difficult to verify simulations. In situ observations generally measure bulk quantities. Where internal snowpack measurements are made, they tend to be destructive and unsuitable for continuous monitoring. Here, we present a novel method for in situ monitoring of water flow in seasonal snow using the electrical self-potential geophysical method. A prototype geophysical array was installed at Col de Porte (France) in October 2018. Snow hydrological and meteorological observations were also collected. Results for two periods of hydrological interest during winter 2018-19 (a marked period of diurnal melting and refreezing, and a rain-on-snow event) show that the electrical self-potential method is sensitive to internal water flow. Water flow was detected by self-potential signals before it was measured in conventional snowmelt lysimeters at the base of the snowpack. This initial feasibility study shows the utility of the self-potential method as a non-destructive snow sensor. Future development should include combining self-potential measurements with a high-resolution snow physics model to improve prediction of melt timing. Journal Article Journal of Glaciology 68 270 720 732 Cambridge University Press (CUP) 0022-1430 1727-5652 Glacier geophysics; glaciological instruments and methods; snow 1 8 2022 2022-08-01 10.1017/jog.2021.128 COLLEGE NANME Biosciences Geography and Physics School COLLEGE CODE BGPS Swansea University Another institution paid the OA fee NERC E3 Doctoral Training Partnership studentship under grant NE/L002558/1 in partnership with British Geological Survey 2022-09-26T15:36:53.1197222 2021-11-12T15:44:23.5427367 Faculty of Science and Engineering School of Biosciences, Geography and Physics - Geography Alex Priestley 0000-0003-1149-2672 1 Bernd Kulessa 0000-0002-4830-4949 2 Richard Essery 3 Yves Lejeune 4 Erwan Le Gac 5 Jane Blackford 6 58636__22078__e88c953a53194add949d7c971b165bd9.pdf 58636.pdf 2022-01-07T16:09:36.7050175 Output 3650481 application/pdf Version of Record true © The Author(s), 2021. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence true eng https://creativecommons.org/licenses/by/4.0/ |
title |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
spellingShingle |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow Bernd Kulessa |
title_short |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
title_full |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
title_fullStr |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
title_full_unstemmed |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
title_sort |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
author_id_str_mv |
52acda616e9f6073cbebf497def874c9 |
author_id_fullname_str_mv |
52acda616e9f6073cbebf497def874c9_***_Bernd Kulessa |
author |
Bernd Kulessa |
author2 |
Alex Priestley Bernd Kulessa Richard Essery Yves Lejeune Erwan Le Gac Jane Blackford |
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Journal article |
container_title |
Journal of Glaciology |
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68 |
container_issue |
270 |
container_start_page |
720 |
publishDate |
2022 |
institution |
Swansea University |
issn |
0022-1430 1727-5652 |
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10.1017/jog.2021.128 |
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Cambridge University Press (CUP) |
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Faculty of Science and Engineering |
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School of Biosciences, Geography and Physics - Geography{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Biosciences, Geography and Physics - Geography |
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description |
To understand snow structure and snowmelt timing, information about flows of liquid water within the snowpack is essential. Models can make predictions using explicit representations of physical processes, or through parameterization, but it is difficult to verify simulations. In situ observations generally measure bulk quantities. Where internal snowpack measurements are made, they tend to be destructive and unsuitable for continuous monitoring. Here, we present a novel method for in situ monitoring of water flow in seasonal snow using the electrical self-potential geophysical method. A prototype geophysical array was installed at Col de Porte (France) in October 2018. Snow hydrological and meteorological observations were also collected. Results for two periods of hydrological interest during winter 2018-19 (a marked period of diurnal melting and refreezing, and a rain-on-snow event) show that the electrical self-potential method is sensitive to internal water flow. Water flow was detected by self-potential signals before it was measured in conventional snowmelt lysimeters at the base of the snowpack. This initial feasibility study shows the utility of the self-potential method as a non-destructive snow sensor. Future development should include combining self-potential measurements with a high-resolution snow physics model to improve prediction of melt timing. |
published_date |
2022-08-01T14:15:30Z |
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11.048064 |