Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios
Abstract The Arctic cryosphere is changing rapidly due to global warming. Northern Svalbard is a warming hotspot with a temperature rise of ~ 6 °C over the last three decades. Concurrently, modelled data suggest a marked increase in glacier runoff during recent decades in northern Svalbard, and runo...
Published in: | Climate Dynamics |
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Springer Science and Business Media LLC
2021
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Online Access: | http://dx.doi.org/10.1007/s00382-021-05642-x https://link.springer.com/content/pdf/10.1007/s00382-021-05642-x.pdf https://link.springer.com/article/10.1007/s00382-021-05642-x/fulltext.html |
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crspringernat:10.1007/s00382-021-05642-x 2023-05-15T14:30:58+02:00 Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios Hetzinger, Steffen Halfar, Jochen Zajacz, Zoltan Möller, Marco Wisshak, Max Deutsche Forschungsgemeinschaft Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada Projekt DEAL 2021 http://dx.doi.org/10.1007/s00382-021-05642-x https://link.springer.com/content/pdf/10.1007/s00382-021-05642-x.pdf https://link.springer.com/article/10.1007/s00382-021-05642-x/fulltext.html en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Climate Dynamics volume 56, issue 9-10, page 3295-3303 ISSN 0930-7575 1432-0894 Atmospheric Science journal-article 2021 crspringernat https://doi.org/10.1007/s00382-021-05642-x 2022-01-04T12:13:17Z Abstract The Arctic cryosphere is changing rapidly due to global warming. Northern Svalbard is a warming hotspot with a temperature rise of ~ 6 °C over the last three decades. Concurrently, modelled data suggest a marked increase in glacier runoff during recent decades in northern Svalbard, and runoff is projected to increase. However, observational data from before anthropogenic influence are sparse and the potential effects on the surface ocean are unclear. Here, we present a 200-year record of Ba/Ca ratios measured in annual increment-forming coralline algae from northern Spitsbergen as a proxy for past glacier-derived meltwater input. Our record shows a significant increasing trend in algal Ba/Ca ratios from the late-1980s onwards matching modelled regional runoff data, suggesting a drastic increase in land-based runoff. The rate of increase is unprecedented during the last two centuries and captures the impact of amplified warming on the coastal surface ocean in the high Arctic. The algal Ba/Ca runoff proxy offers an opportunity to reconstruct past land-based runoff variability in Arctic settings in high resolution, providing important data for validating and improving climate modelling studies. Article in Journal/Newspaper arctic cryosphere Arctic glacier Global warming Svalbard Spitsbergen Springer Nature (via Crossref) Arctic Svalbard Climate Dynamics 56 9-10 3295 3303 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
Atmospheric Science |
spellingShingle |
Atmospheric Science Hetzinger, Steffen Halfar, Jochen Zajacz, Zoltan Möller, Marco Wisshak, Max Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios |
topic_facet |
Atmospheric Science |
description |
Abstract The Arctic cryosphere is changing rapidly due to global warming. Northern Svalbard is a warming hotspot with a temperature rise of ~ 6 °C over the last three decades. Concurrently, modelled data suggest a marked increase in glacier runoff during recent decades in northern Svalbard, and runoff is projected to increase. However, observational data from before anthropogenic influence are sparse and the potential effects on the surface ocean are unclear. Here, we present a 200-year record of Ba/Ca ratios measured in annual increment-forming coralline algae from northern Spitsbergen as a proxy for past glacier-derived meltwater input. Our record shows a significant increasing trend in algal Ba/Ca ratios from the late-1980s onwards matching modelled regional runoff data, suggesting a drastic increase in land-based runoff. The rate of increase is unprecedented during the last two centuries and captures the impact of amplified warming on the coastal surface ocean in the high Arctic. The algal Ba/Ca runoff proxy offers an opportunity to reconstruct past land-based runoff variability in Arctic settings in high resolution, providing important data for validating and improving climate modelling studies. |
author2 |
Deutsche Forschungsgemeinschaft Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada Projekt DEAL |
format |
Article in Journal/Newspaper |
author |
Hetzinger, Steffen Halfar, Jochen Zajacz, Zoltan Möller, Marco Wisshak, Max |
author_facet |
Hetzinger, Steffen Halfar, Jochen Zajacz, Zoltan Möller, Marco Wisshak, Max |
author_sort |
Hetzinger, Steffen |
title |
Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios |
title_short |
Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios |
title_full |
Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios |
title_fullStr |
Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios |
title_full_unstemmed |
Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios |
title_sort |
late twentieth century increase in northern spitsbergen (svalbard) glacier-derived runoff tracked by coralline algal ba/ca ratios |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1007/s00382-021-05642-x https://link.springer.com/content/pdf/10.1007/s00382-021-05642-x.pdf https://link.springer.com/article/10.1007/s00382-021-05642-x/fulltext.html |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
arctic cryosphere Arctic glacier Global warming Svalbard Spitsbergen |
genre_facet |
arctic cryosphere Arctic glacier Global warming Svalbard Spitsbergen |
op_source |
Climate Dynamics volume 56, issue 9-10, page 3295-3303 ISSN 0930-7575 1432-0894 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00382-021-05642-x |
container_title |
Climate Dynamics |
container_volume |
56 |
container_issue |
9-10 |
container_start_page |
3295 |
op_container_end_page |
3303 |
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1766304720842915840 |