Late twentieth century increase in northern Spitsbergen (Svalbard) glacier-derived runoff tracked by coralline algal Ba/Ca ratios
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 pro...
Main Authors: | , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Humboldt-Universität zu Berlin
2021
|
Subjects: | |
Online Access: | http://edoc.hu-berlin.de/18452/27287 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/27287-7 https://doi.org/10.1007/s00382-021-05642-x https://doi.org/10.18452/26590 |
id |
fthuberlin:oai:edoc.hu-berlin.de:18452/27287 |
---|---|
record_format |
openpolar |
spelling |
fthuberlin:oai:edoc.hu-berlin.de:18452/27287 2023-12-03T10:15:34+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 2021-01-24 application/pdf http://edoc.hu-berlin.de/18452/27287 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/27287-7 https://doi.org/10.1007/s00382-021-05642-x https://doi.org/10.18452/26590 eng eng Humboldt-Universität zu Berlin 0930-7575 http://edoc.hu-berlin.de/18452/27287 urn:nbn:de:kobv:11-110-18452/27287-7 doi:10.1007/s00382-021-05642-x http://dx.doi.org/10.18452/26590 1432-0894 (CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Ba/Ca Runoff proxy Glacier Freshwater Coralline algae Svalbard 550 Geowissenschaften ddc:550 article doc-type:article publishedVersion 2021 fthuberlin https://doi.org/10.1007/s00382-021-05642-x10.18452/26590 2023-11-05T23:36:29Z 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. Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada (CA) Projekt DEAL Peer Reviewed Article in Journal/Newspaper arctic cryosphere Arctic glacier glacier* Global warming Svalbard Spitsbergen Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server Arctic Canada Svalbard |
institution |
Open Polar |
collection |
Open-Access-Publikationsserver der Humboldt-Universität: edoc-Server |
op_collection_id |
fthuberlin |
language |
English |
topic |
Ba/Ca Runoff proxy Glacier Freshwater Coralline algae Svalbard 550 Geowissenschaften ddc:550 |
spellingShingle |
Ba/Ca Runoff proxy Glacier Freshwater Coralline algae Svalbard 550 Geowissenschaften ddc:550 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 |
Ba/Ca Runoff proxy Glacier Freshwater Coralline algae Svalbard 550 Geowissenschaften ddc:550 |
description |
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. Deutsche Forschungsgemeinschaft http://dx.doi.org/10.13039/501100001659 Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada (CA) Projekt DEAL Peer Reviewed |
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 |
Humboldt-Universität zu Berlin |
publishDate |
2021 |
url |
http://edoc.hu-berlin.de/18452/27287 https://nbn-resolving.org/urn:nbn:de:kobv:11-110-18452/27287-7 https://doi.org/10.1007/s00382-021-05642-x https://doi.org/10.18452/26590 |
geographic |
Arctic Canada Svalbard |
geographic_facet |
Arctic Canada Svalbard |
genre |
arctic cryosphere Arctic glacier glacier* Global warming Svalbard Spitsbergen |
genre_facet |
arctic cryosphere Arctic glacier glacier* Global warming Svalbard Spitsbergen |
op_relation |
0930-7575 http://edoc.hu-berlin.de/18452/27287 urn:nbn:de:kobv:11-110-18452/27287-7 doi:10.1007/s00382-021-05642-x http://dx.doi.org/10.18452/26590 1432-0894 |
op_rights |
(CC BY 4.0) Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1007/s00382-021-05642-x10.18452/26590 |
_version_ |
1784262460925018112 |