Hässeldala – a key site for Last Termination climate events in northern Europe
The Last Termination (19 000-11 000 a BP) with its rapid and distinct climate shifts provides a perfect laboratory to study the nature and regional impact of climate variability. The sedimentary succession from the ancient lake at Hässeldala Port in southern Sweden with its distinct Lateglacial/earl...
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ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/5363 2023-05-15T16:28:15+02:00 Hässeldala – a key site for Last Termination climate events in northern Europe Wohlfarth, B MUSCHITIELLO, F Greenwood, S Andersson, A Kylander, M SMITTENBERG, R STEINTHORSDOTTIR, M Watson, J Whitehouse, N 2016-11-02 http://hdl.handle.net/10026.1/5363 en eng http://hdl.handle.net/10026.1/5363 2017-11-02 12 months Journal Article 2016 ftunivplympearl 2021-03-09T18:34:05Z The Last Termination (19 000-11 000 a BP) with its rapid and distinct climate shifts provides a perfect laboratory to study the nature and regional impact of climate variability. The sedimentary succession from the ancient lake at Hässeldala Port in southern Sweden with its distinct Lateglacial/early Holocene stratigraphy (>14.1-9.5 cal. ka BP) is one of the few chronologically well- constrained, multi-proxy sites in Europe that capture a variety of local and regional climatic and environmental signals. Here we present Hässeldala’s multi- proxy records (lithology, geochemistry, pollen, diatoms, chironomids, biomarkers, hydrogen isotopes) in a refined age model and place the observed changes in lake status, catchment vegetation, summer temperatures and hydroclimate in a wider regional context. Reconstructed mean July temperatures increased between ~14.1 and ~13.1 cal. ka BP and subsequently declined. This latter cooling coincided with drier hydroclimatic conditions that were likely associated with a freshening of the Nordic Seas and started a few hundred years before the onset of Greenland Stadial 1 (~12.9 cal. ka BP). Our proxies suggest a further shift towards colder and drier conditions as late as ~12.7 cal. ka BP, which was followed by the establishment of a stadial climate regime (~12.5-11.8 cal. ka BP). The onset of warmer and wetter conditions led the Holocene warming over Greenland by ~200 years. Hässeldala’s proxies thus highlight the complexity of environmental and hydrological responses across abrupt climate transitions in northern Europe. Article in Journal/Newspaper Greenland Nordic Seas PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) Greenland |
institution |
Open Polar |
collection |
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
op_collection_id |
ftunivplympearl |
language |
English |
description |
The Last Termination (19 000-11 000 a BP) with its rapid and distinct climate shifts provides a perfect laboratory to study the nature and regional impact of climate variability. The sedimentary succession from the ancient lake at Hässeldala Port in southern Sweden with its distinct Lateglacial/early Holocene stratigraphy (>14.1-9.5 cal. ka BP) is one of the few chronologically well- constrained, multi-proxy sites in Europe that capture a variety of local and regional climatic and environmental signals. Here we present Hässeldala’s multi- proxy records (lithology, geochemistry, pollen, diatoms, chironomids, biomarkers, hydrogen isotopes) in a refined age model and place the observed changes in lake status, catchment vegetation, summer temperatures and hydroclimate in a wider regional context. Reconstructed mean July temperatures increased between ~14.1 and ~13.1 cal. ka BP and subsequently declined. This latter cooling coincided with drier hydroclimatic conditions that were likely associated with a freshening of the Nordic Seas and started a few hundred years before the onset of Greenland Stadial 1 (~12.9 cal. ka BP). Our proxies suggest a further shift towards colder and drier conditions as late as ~12.7 cal. ka BP, which was followed by the establishment of a stadial climate regime (~12.5-11.8 cal. ka BP). The onset of warmer and wetter conditions led the Holocene warming over Greenland by ~200 years. Hässeldala’s proxies thus highlight the complexity of environmental and hydrological responses across abrupt climate transitions in northern Europe. |
format |
Article in Journal/Newspaper |
author |
Wohlfarth, B MUSCHITIELLO, F Greenwood, S Andersson, A Kylander, M SMITTENBERG, R STEINTHORSDOTTIR, M Watson, J Whitehouse, N |
spellingShingle |
Wohlfarth, B MUSCHITIELLO, F Greenwood, S Andersson, A Kylander, M SMITTENBERG, R STEINTHORSDOTTIR, M Watson, J Whitehouse, N Hässeldala – a key site for Last Termination climate events in northern Europe |
author_facet |
Wohlfarth, B MUSCHITIELLO, F Greenwood, S Andersson, A Kylander, M SMITTENBERG, R STEINTHORSDOTTIR, M Watson, J Whitehouse, N |
author_sort |
Wohlfarth, B |
title |
Hässeldala – a key site for Last Termination climate events in northern Europe |
title_short |
Hässeldala – a key site for Last Termination climate events in northern Europe |
title_full |
Hässeldala – a key site for Last Termination climate events in northern Europe |
title_fullStr |
Hässeldala – a key site for Last Termination climate events in northern Europe |
title_full_unstemmed |
Hässeldala – a key site for Last Termination climate events in northern Europe |
title_sort |
hässeldala – a key site for last termination climate events in northern europe |
publishDate |
2016 |
url |
http://hdl.handle.net/10026.1/5363 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Nordic Seas |
genre_facet |
Greenland Nordic Seas |
op_relation |
http://hdl.handle.net/10026.1/5363 |
op_rights |
2017-11-02 12 months |
_version_ |
1766017891610656768 |