Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow
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 obser...
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Online Access: | http://dx.doi.org/10.1017/jog.2021.128 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021001283 |
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crcambridgeupr:10.1017/jog.2021.128 2024-03-03T08:46:03+00:00 Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow Priestley, Alex Kulessa, Bernd Essery, Richard Lejeune, Yves Le Gac, Erwan Blackford, Jane Natural Environment Research Council 2021 http://dx.doi.org/10.1017/jog.2021.128 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021001283 en eng Cambridge University Press (CUP) https://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 68, issue 270, page 720-732 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2021 crcambridgeupr https://doi.org/10.1017/jog.2021.128 2024-02-08T08:43:40Z 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 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 (SP) 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 SP method is sensitive to internal water flow. Water flow was detected by SP signals before it was measured in conventional snowmelt lysimeters at the base of the snowpack. This initial feasibility study shows the utility of the SP method as a non-destructive snow sensor. Future development should include combining SP measurements with a high-resolution snow physics model to improve prediction of melt timing. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 1 13 |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Priestley, Alex Kulessa, Bernd Essery, Richard Lejeune, Yves Le Gac, Erwan Blackford, Jane Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
topic_facet |
Earth-Surface Processes |
description |
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 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 (SP) 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 SP method is sensitive to internal water flow. Water flow was detected by SP signals before it was measured in conventional snowmelt lysimeters at the base of the snowpack. This initial feasibility study shows the utility of the SP method as a non-destructive snow sensor. Future development should include combining SP measurements with a high-resolution snow physics model to improve prediction of melt timing. |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Priestley, Alex Kulessa, Bernd Essery, Richard Lejeune, Yves Le Gac, Erwan Blackford, Jane |
author_facet |
Priestley, Alex Kulessa, Bernd Essery, Richard Lejeune, Yves Le Gac, Erwan Blackford, Jane |
author_sort |
Priestley, Alex |
title |
Towards the development of an automated electrical self-potential sensor of melt and rainwater flow in snow |
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 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1017/jog.2021.128 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143021001283 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology volume 68, issue 270, page 720-732 ISSN 0022-1430 1727-5652 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2021.128 |
container_title |
Journal of Glaciology |
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1 |
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13 |
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1792501874608308224 |