Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods
Abstract Unconsolidated sediments in alpine watersheds can store glacier melt and snowmelt as groundwater, which helps sustain flow in mountain rivers during dry periods. However, the amount and distribution of groundwater storage in rugged alpine terrain is not well understood, hindering our abilit...
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crwiley:10.1002/hyp.9316 2024-09-30T14:35:27+00:00 Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods McClymont, A. F. Hayashi, M. Bentley, L. R. Liard, J. 2012 http://dx.doi.org/10.1002/hyp.9316 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.9316 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.9316 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Hydrological Processes volume 26, issue 12, page 1792-1804 ISSN 0885-6087 1099-1085 journal-article 2012 crwiley https://doi.org/10.1002/hyp.9316 2024-09-11T04:14:32Z Abstract Unconsolidated sediments in alpine watersheds can store glacier melt and snowmelt as groundwater, which helps sustain flow in mountain rivers during dry periods. However, the amount and distribution of groundwater storage in rugged alpine terrain is not well understood, hindering our ability to predict the rate and timing of groundwater discharge into alpine streams. We show how non‐invasive time‐lapse microgravity surveys can be used to gauge the spatial distribution of groundwater storage changes within a large ( ca 1500 × 1000 m) moraine–talus field of the Lake O'Hara alpine watershed of the Canadian Rockies. Additional ground‐penetrating radar (GPR) and seismic refraction surveys provide complementary information on subsurface bedrock topography and reveal the location of a major northwest–southeast trending depression that likely controls groundwater flow to an alpine lake contiguous with the moraine–talus field. Repeat relative gravity measurements made on a network of 80 gravity stations over and around the moraine–talus field during the summers of 2009 and 2010 reveal gravity changes of up to 25 µgal. Although the small gravity changes associated with groundwater flowing out of storage areas are noisy, significant changes are evident on the eastern side of the moraine–talus field. © Her Majesty the Queen in Right of Canada 2012. Article in Journal/Newspaper glacier* Wiley Online Library Canada Alpine Lake ENVELOPE(-129.182,-129.182,55.529,55.529) Hydrological Processes 26 12 1792 1804 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Unconsolidated sediments in alpine watersheds can store glacier melt and snowmelt as groundwater, which helps sustain flow in mountain rivers during dry periods. However, the amount and distribution of groundwater storage in rugged alpine terrain is not well understood, hindering our ability to predict the rate and timing of groundwater discharge into alpine streams. We show how non‐invasive time‐lapse microgravity surveys can be used to gauge the spatial distribution of groundwater storage changes within a large ( ca 1500 × 1000 m) moraine–talus field of the Lake O'Hara alpine watershed of the Canadian Rockies. Additional ground‐penetrating radar (GPR) and seismic refraction surveys provide complementary information on subsurface bedrock topography and reveal the location of a major northwest–southeast trending depression that likely controls groundwater flow to an alpine lake contiguous with the moraine–talus field. Repeat relative gravity measurements made on a network of 80 gravity stations over and around the moraine–talus field during the summers of 2009 and 2010 reveal gravity changes of up to 25 µgal. Although the small gravity changes associated with groundwater flowing out of storage areas are noisy, significant changes are evident on the eastern side of the moraine–talus field. © Her Majesty the Queen in Right of Canada 2012. |
format |
Article in Journal/Newspaper |
author |
McClymont, A. F. Hayashi, M. Bentley, L. R. Liard, J. |
spellingShingle |
McClymont, A. F. Hayashi, M. Bentley, L. R. Liard, J. Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods |
author_facet |
McClymont, A. F. Hayashi, M. Bentley, L. R. Liard, J. |
author_sort |
McClymont, A. F. |
title |
Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods |
title_short |
Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods |
title_full |
Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods |
title_fullStr |
Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods |
title_full_unstemmed |
Locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, GPR and seismic refraction methods |
title_sort |
locating and characterising groundwater storage areas within an alpine watershed using time‐lapse gravity, gpr and seismic refraction methods |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1002/hyp.9316 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fhyp.9316 https://onlinelibrary.wiley.com/doi/pdf/10.1002/hyp.9316 |
long_lat |
ENVELOPE(-129.182,-129.182,55.529,55.529) |
geographic |
Canada Alpine Lake |
geographic_facet |
Canada Alpine Lake |
genre |
glacier* |
genre_facet |
glacier* |
op_source |
Hydrological Processes volume 26, issue 12, page 1792-1804 ISSN 0885-6087 1099-1085 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/hyp.9316 |
container_title |
Hydrological Processes |
container_volume |
26 |
container_issue |
12 |
container_start_page |
1792 |
op_container_end_page |
1804 |
_version_ |
1811638714655309824 |