Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios
<jats:title>Abstract</jats:title><jats:p>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 du...
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ftzbmed:oai:frl.publisso.de:frl:6451047 2023-11-12T04:10:27+01:00 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 2021 https://repository.publisso.de/resource/frl:6451047 https://doi.org/10.1007/s00382-021-05642-x eng eng https://repository.publisso.de/resource/frl:6451047 https://doi.org/10.1007/s00382-021-05642-x https://creativecommons.org/licenses/by/4.0/ http://lobid.org/resources/99370671690206441#!, 56(9-10):3295-3303 Article Freshwater Ba/Ca Svalbard Runoff proxy Coralline algae Glacier Zeitschriftenartikel 2021 ftzbmed https://doi.org/10.1007/s00382-021-05642-x 2023-10-22T22:07:16Z <jats:title>Abstract</jats:title><jats:p>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.</jats:p> Article in Journal/Newspaper arctic cryosphere Arctic glacier Global warming Svalbard Spitsbergen PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) Arctic Svalbard Climate Dynamics 56 9-10 3295 3303 |
institution |
Open Polar |
collection |
PUBLISSO Fachrepositorium Lebenswissenschaften (ZB MED) |
op_collection_id |
ftzbmed |
language |
English |
topic |
Article Freshwater Ba/Ca Svalbard Runoff proxy Coralline algae Glacier |
spellingShingle |
Article Freshwater Ba/Ca Svalbard Runoff proxy Coralline algae Glacier 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 |
Article Freshwater Ba/Ca Svalbard Runoff proxy Coralline algae Glacier |
description |
<jats:title>Abstract</jats:title><jats:p>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.</jats:p> |
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 |
publishDate |
2021 |
url |
https://repository.publisso.de/resource/frl:6451047 https://doi.org/10.1007/s00382-021-05642-x |
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 |
http://lobid.org/resources/99370671690206441#!, 56(9-10):3295-3303 |
op_relation |
https://repository.publisso.de/resource/frl:6451047 https://doi.org/10.1007/s00382-021-05642-x |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
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 |
_version_ |
1782329906421563392 |