Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe
The general warming trend of the last deglaciation was interrupted by the Younger Dryas, a period of abrupt cooling and widespread environmental change(1-10). Ice core records suggest the abrupt cooling began 12,846 years ago in Greenland(10), about 170 years before the significant environmental and...
Published in: | Nature Geoscience |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2014
|
Subjects: | |
Online Access: | https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/38109 https://doi.org/10.1038/NGEO2053 |
id |
ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:38109 |
---|---|
record_format |
openpolar |
spelling |
ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:38109 2023-05-15T16:27:17+02:00 Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe Rach, Oliver Brauer, Achim Wilkes, Heinz Sachse, Dirk 2014 https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/38109 https://doi.org/10.1038/NGEO2053 eng eng https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/38109 https://doi.org/10.1038/NGEO2053 info:eu-repo/semantics/closedAccess Institut für Geowissenschaften article doc-type:article 2014 ftubpotsdam https://doi.org/10.1038/NGEO2053 2022-07-28T20:46:36Z The general warming trend of the last deglaciation was interrupted by the Younger Dryas, a period of abrupt cooling and widespread environmental change(1-10). Ice core records suggest the abrupt cooling began 12,846 years ago in Greenland(10), about 170 years before the significant environmental and vegetation change in western Europe(7) classically defined as the Younger Dryas. However, this difference in timing falls within age model uncertainties. Here we use the hydrogen isotope composition of lipid biomarkers from precisely dated varved sediments from Lake Meerfelder Maar to reconstruct hydroclimate over western Europe. We observe a decrease in the hydrogen isotope values of both aquatic and terrestrial lipids 12,850 years ago, indicating cooling climate in this region synchronous with the abrupt cooling in Greenland. A second drop occurs 170 years later, mainly in the hydrogen isotope record of aquatic lipids but to a lesser extent in the terrestrial lipids, which we attribute to aridification, as well as a change in moisture source and pathway. We thus confirm that there was indeed a lag between cooling and substantial hydrologic and environmental change in western Europe. We suggest the delay is related to the expansion of sea ice in the North Atlantic Ocean and the subsequent southward migration of the westerly wind system(9). We further suggest that these hydrological changes amplified environmental change in western Europe at the onset of the Younger Dryas. Article in Journal/Newspaper Greenland ice core North Atlantic Sea ice University of Potsdam: publish.UP Greenland Nature Geoscience 7 2 109 112 |
institution |
Open Polar |
collection |
University of Potsdam: publish.UP |
op_collection_id |
ftubpotsdam |
language |
English |
topic |
Institut für Geowissenschaften |
spellingShingle |
Institut für Geowissenschaften Rach, Oliver Brauer, Achim Wilkes, Heinz Sachse, Dirk Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe |
topic_facet |
Institut für Geowissenschaften |
description |
The general warming trend of the last deglaciation was interrupted by the Younger Dryas, a period of abrupt cooling and widespread environmental change(1-10). Ice core records suggest the abrupt cooling began 12,846 years ago in Greenland(10), about 170 years before the significant environmental and vegetation change in western Europe(7) classically defined as the Younger Dryas. However, this difference in timing falls within age model uncertainties. Here we use the hydrogen isotope composition of lipid biomarkers from precisely dated varved sediments from Lake Meerfelder Maar to reconstruct hydroclimate over western Europe. We observe a decrease in the hydrogen isotope values of both aquatic and terrestrial lipids 12,850 years ago, indicating cooling climate in this region synchronous with the abrupt cooling in Greenland. A second drop occurs 170 years later, mainly in the hydrogen isotope record of aquatic lipids but to a lesser extent in the terrestrial lipids, which we attribute to aridification, as well as a change in moisture source and pathway. We thus confirm that there was indeed a lag between cooling and substantial hydrologic and environmental change in western Europe. We suggest the delay is related to the expansion of sea ice in the North Atlantic Ocean and the subsequent southward migration of the westerly wind system(9). We further suggest that these hydrological changes amplified environmental change in western Europe at the onset of the Younger Dryas. |
format |
Article in Journal/Newspaper |
author |
Rach, Oliver Brauer, Achim Wilkes, Heinz Sachse, Dirk |
author_facet |
Rach, Oliver Brauer, Achim Wilkes, Heinz Sachse, Dirk |
author_sort |
Rach, Oliver |
title |
Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe |
title_short |
Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe |
title_full |
Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe |
title_fullStr |
Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe |
title_full_unstemmed |
Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe |
title_sort |
delayed hydrological response to greenland cooling at the onset of the younger dryas in western europe |
publishDate |
2014 |
url |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/38109 https://doi.org/10.1038/NGEO2053 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core North Atlantic Sea ice |
genre_facet |
Greenland ice core North Atlantic Sea ice |
op_relation |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/38109 https://doi.org/10.1038/NGEO2053 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1038/NGEO2053 |
container_title |
Nature Geoscience |
container_volume |
7 |
container_issue |
2 |
container_start_page |
109 |
op_container_end_page |
112 |
_version_ |
1766016414377836544 |