Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland
Groundwater in front of warm-based glaciers is likely to become a more integrated part of the future proglacial hydrological system at high latitudes due to global warming. Here, we present the first monitoring results of shallow groundwater chemistry and geochemical fingerprinting of glacier meltwa...
Published in: | Geografiska Annaler: Series A, Physical Geography |
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Online Access: | https://curis.ku.dk/portal/da/publications/geochemistry-of-groundwater-in-front-of-a-warmbased-glacier-in-southeast-greenland(6fbede08-0132-4cbc-ad90-47f9f9db6191).html https://doi.org/10.1111/geoa.12003 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/6fbede08-0132-4cbc-ad90-47f9f9db6191 2024-05-19T07:36:25+00:00 Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland Kristiansen, Søren Munch Yde, Jacob Clement Bárcena, Teresa G Jakobsen, Bjarne Holm Olsen, Jesper Knudsen, Niels Aage Tvis 2013 https://curis.ku.dk/portal/da/publications/geochemistry-of-groundwater-in-front-of-a-warmbased-glacier-in-southeast-greenland(6fbede08-0132-4cbc-ad90-47f9f9db6191).html https://doi.org/10.1111/geoa.12003 eng eng info:eu-repo/semantics/restrictedAccess Kristiansen , S M , Yde , J C , Bárcena , T G , Jakobsen , B H , Olsen , J & Knudsen , N A T 2013 , ' Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland ' , Geografiska Annaler: Series A, Physical Geography , vol. 95 , no. 2 , pp. 97-108 . https://doi.org/10.1111/geoa.12003 Greenland glacial weathering glacier meltwater isotope hydrology groundwater surface water interactions article 2013 ftcopenhagenunip https://doi.org/10.1111/geoa.12003 2024-05-02T00:33:08Z Groundwater in front of warm-based glaciers is likely to become a more integrated part of the future proglacial hydrological system at high latitudes due to global warming. Here, we present the first monitoring results of shallow groundwater chemistry and geochemical fingerprinting of glacier meltwater in front of a warm-based glacier in Southeast Greenland (Mittivakkat Gletscher, 65 degrees 41 N, 37 degrees 48 W). The groundwater temperature, electrical conductivity and pressure head were monitored from August 2009 to August 2011, and water samples were collected in 2009 and analyzed for major ions and water isotopes (D, 18O). The 2yrs of monitoring revealed that major outbursts of glacier water during the ablation season flushed the proglacial aquifer and determined the groundwater quality for the next 2-8 weeks until stable chemical conditions were reached again. Water isotope composition shows that isotopic fractionation occurs in both groundwater and glacier meltwater, but fractionation due to evaporation from near-surface soil moisture prior to infiltration has the most significant effect. This study shows that groundwater in Low Arctic Greenland is likely to possess a combined geochemical and isotopic composition, which is distinguishable from other water sources in the proglacial environment. However, the shallow groundwater composition at a given time is highly dependent on major outbursts of glacier water in the previous months. Article in Journal/Newspaper Arctic glacier Global warming Greenland University of Copenhagen: Research Geografiska Annaler: Series A, Physical Geography 95 2 97 108 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
Greenland glacial weathering glacier meltwater isotope hydrology groundwater surface water interactions |
spellingShingle |
Greenland glacial weathering glacier meltwater isotope hydrology groundwater surface water interactions Kristiansen, Søren Munch Yde, Jacob Clement Bárcena, Teresa G Jakobsen, Bjarne Holm Olsen, Jesper Knudsen, Niels Aage Tvis Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland |
topic_facet |
Greenland glacial weathering glacier meltwater isotope hydrology groundwater surface water interactions |
description |
Groundwater in front of warm-based glaciers is likely to become a more integrated part of the future proglacial hydrological system at high latitudes due to global warming. Here, we present the first monitoring results of shallow groundwater chemistry and geochemical fingerprinting of glacier meltwater in front of a warm-based glacier in Southeast Greenland (Mittivakkat Gletscher, 65 degrees 41 N, 37 degrees 48 W). The groundwater temperature, electrical conductivity and pressure head were monitored from August 2009 to August 2011, and water samples were collected in 2009 and analyzed for major ions and water isotopes (D, 18O). The 2yrs of monitoring revealed that major outbursts of glacier water during the ablation season flushed the proglacial aquifer and determined the groundwater quality for the next 2-8 weeks until stable chemical conditions were reached again. Water isotope composition shows that isotopic fractionation occurs in both groundwater and glacier meltwater, but fractionation due to evaporation from near-surface soil moisture prior to infiltration has the most significant effect. This study shows that groundwater in Low Arctic Greenland is likely to possess a combined geochemical and isotopic composition, which is distinguishable from other water sources in the proglacial environment. However, the shallow groundwater composition at a given time is highly dependent on major outbursts of glacier water in the previous months. |
format |
Article in Journal/Newspaper |
author |
Kristiansen, Søren Munch Yde, Jacob Clement Bárcena, Teresa G Jakobsen, Bjarne Holm Olsen, Jesper Knudsen, Niels Aage Tvis |
author_facet |
Kristiansen, Søren Munch Yde, Jacob Clement Bárcena, Teresa G Jakobsen, Bjarne Holm Olsen, Jesper Knudsen, Niels Aage Tvis |
author_sort |
Kristiansen, Søren Munch |
title |
Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland |
title_short |
Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland |
title_full |
Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland |
title_fullStr |
Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland |
title_full_unstemmed |
Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland |
title_sort |
geochemistry of groundwater in front of a warm-based glacier in southeast greenland |
publishDate |
2013 |
url |
https://curis.ku.dk/portal/da/publications/geochemistry-of-groundwater-in-front-of-a-warmbased-glacier-in-southeast-greenland(6fbede08-0132-4cbc-ad90-47f9f9db6191).html https://doi.org/10.1111/geoa.12003 |
genre |
Arctic glacier Global warming Greenland |
genre_facet |
Arctic glacier Global warming Greenland |
op_source |
Kristiansen , S M , Yde , J C , Bárcena , T G , Jakobsen , B H , Olsen , J & Knudsen , N A T 2013 , ' Geochemistry of groundwater in front of a warm-based glacier in Southeast Greenland ' , Geografiska Annaler: Series A, Physical Geography , vol. 95 , no. 2 , pp. 97-108 . https://doi.org/10.1111/geoa.12003 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/geoa.12003 |
container_title |
Geografiska Annaler: Series A, Physical Geography |
container_volume |
95 |
container_issue |
2 |
container_start_page |
97 |
op_container_end_page |
108 |
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