Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier
Virkisjökull is a rapidly retreating outlet glacier draining the western flanks of Öræfajökull in SE Iceland. Since 2011 there have been continuous measurements of flow in the proglacial meltwater channel and regular campaigns to sample stable isotopes δ2H and δ18O from the river, ice, moraine sprin...
Published in: | Annals of Glaciology |
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2016
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Online Access: | https://discovery.dundee.ac.uk/en/publications/8d73ad90-6eb8-4d33-8e6a-d0a2ca88cbae https://doi.org/10.1017/aog.2016.22 https://discovery.dundee.ac.uk/ws/files/9763095/S0260305516000227a.pdf |
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ftunivdundeepure:oai:discovery.dundee.ac.uk:publications/8d73ad90-6eb8-4d33-8e6a-d0a2ca88cbae 2024-09-15T17:39:59+00:00 Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier MacDonald, A. M. Black, A. R. Dochartaigh, B. É. Ó. Everest, J. Darling, W. G. Flett, Verity Peach, D. W. 2016-07 application/pdf https://discovery.dundee.ac.uk/en/publications/8d73ad90-6eb8-4d33-8e6a-d0a2ca88cbae https://doi.org/10.1017/aog.2016.22 https://discovery.dundee.ac.uk/ws/files/9763095/S0260305516000227a.pdf eng eng https://discovery.dundee.ac.uk/en/publications/8d73ad90-6eb8-4d33-8e6a-d0a2ca88cbae info:eu-repo/semantics/openAccess MacDonald , A M , Black , A R , Dochartaigh , B É Ó , Everest , J , Darling , W G , Flett , V & Peach , D W 2016 , ' Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier ' , Annals of Glaciology , vol. 57 , no. 72 , pp. 1-8 . https://doi.org/10.1017/aog.2016.22 climate change glacier hydroshemistry glacier hydrology glacier monitoring meltwater chemistry article 2016 ftunivdundeepure https://doi.org/10.1017/aog.2016.22 2024-07-09T14:14:09Z Virkisjökull is a rapidly retreating outlet glacier draining the western flanks of Öræfajökull in SE Iceland. Since 2011 there have been continuous measurements of flow in the proglacial meltwater channel and regular campaigns to sample stable isotopes δ2H and δ18O from the river, ice, moraine springs and groundwater. The stable isotopes provide reliable endmembers for glacial ice and shallow groundwater. Analysis of data from 2011 to 2014 indicates that although ice and snowmelt dominate summer riverflow (mean 5.3–7.9 m3s‐1), significant flow is also observed in winter (mean 1.6–2.4 m3s‐1) due primarily to ongoing glacier ice‐melt. The stable isotope data demonstrate that the influence of groundwater discharge from moraines and the sandur aquifer increases during winter and forms a small (15–20%) consistent source of baseflow to the river. The similarity of hydrological response across seasons reflects a highly efficient glacial drainage system, which makes use of a series of permanent englacial channels within active and buried ice throughout the year. The study has shown that the development of an efficient year round drainage network within the lower part of the glacier has been coincident with the stagnation and subsequent rapid retreat of the glacier. Article in Journal/Newspaper Annals of Glaciology glacier Iceland Discovery - University of Dundee Online Publications Annals of Glaciology 57 72 151 158 |
institution |
Open Polar |
collection |
Discovery - University of Dundee Online Publications |
op_collection_id |
ftunivdundeepure |
language |
English |
topic |
climate change glacier hydroshemistry glacier hydrology glacier monitoring meltwater chemistry |
spellingShingle |
climate change glacier hydroshemistry glacier hydrology glacier monitoring meltwater chemistry MacDonald, A. M. Black, A. R. Dochartaigh, B. É. Ó. Everest, J. Darling, W. G. Flett, Verity Peach, D. W. Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier |
topic_facet |
climate change glacier hydroshemistry glacier hydrology glacier monitoring meltwater chemistry |
description |
Virkisjökull is a rapidly retreating outlet glacier draining the western flanks of Öræfajökull in SE Iceland. Since 2011 there have been continuous measurements of flow in the proglacial meltwater channel and regular campaigns to sample stable isotopes δ2H and δ18O from the river, ice, moraine springs and groundwater. The stable isotopes provide reliable endmembers for glacial ice and shallow groundwater. Analysis of data from 2011 to 2014 indicates that although ice and snowmelt dominate summer riverflow (mean 5.3–7.9 m3s‐1), significant flow is also observed in winter (mean 1.6–2.4 m3s‐1) due primarily to ongoing glacier ice‐melt. The stable isotope data demonstrate that the influence of groundwater discharge from moraines and the sandur aquifer increases during winter and forms a small (15–20%) consistent source of baseflow to the river. The similarity of hydrological response across seasons reflects a highly efficient glacial drainage system, which makes use of a series of permanent englacial channels within active and buried ice throughout the year. The study has shown that the development of an efficient year round drainage network within the lower part of the glacier has been coincident with the stagnation and subsequent rapid retreat of the glacier. |
format |
Article in Journal/Newspaper |
author |
MacDonald, A. M. Black, A. R. Dochartaigh, B. É. Ó. Everest, J. Darling, W. G. Flett, Verity Peach, D. W. |
author_facet |
MacDonald, A. M. Black, A. R. Dochartaigh, B. É. Ó. Everest, J. Darling, W. G. Flett, Verity Peach, D. W. |
author_sort |
MacDonald, A. M. |
title |
Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier |
title_short |
Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier |
title_full |
Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier |
title_fullStr |
Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier |
title_full_unstemmed |
Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier |
title_sort |
using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating icelandic outlet glacier |
publishDate |
2016 |
url |
https://discovery.dundee.ac.uk/en/publications/8d73ad90-6eb8-4d33-8e6a-d0a2ca88cbae https://doi.org/10.1017/aog.2016.22 https://discovery.dundee.ac.uk/ws/files/9763095/S0260305516000227a.pdf |
genre |
Annals of Glaciology glacier Iceland |
genre_facet |
Annals of Glaciology glacier Iceland |
op_source |
MacDonald , A M , Black , A R , Dochartaigh , B É Ó , Everest , J , Darling , W G , Flett , V & Peach , D W 2016 , ' Using stable isotopes and continuous meltwater river monitoring to investigate the hydrology of a rapidly retreating Icelandic outlet glacier ' , Annals of Glaciology , vol. 57 , no. 72 , pp. 1-8 . https://doi.org/10.1017/aog.2016.22 |
op_relation |
https://discovery.dundee.ac.uk/en/publications/8d73ad90-6eb8-4d33-8e6a-d0a2ca88cbae |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1017/aog.2016.22 |
container_title |
Annals of Glaciology |
container_volume |
57 |
container_issue |
72 |
container_start_page |
151 |
op_container_end_page |
158 |
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1810483868733538304 |