Atmospheric circulation over Europe during the Younger Dryas
(2020) In Science Advances 6(50).- Abstract
The Younger Dryas (YD) was a period of rapid climate cooling that occurred at the end of the last glaciation. Here, we present the first palaeoglacier-derived reconstruction of YD precipitation across Europe, determined from 122 reconstructed glaciers and proxy atmospheric temperatures. Positive precipitation anomalies (YD versus modern) are found along much of the western seaboard of Europe and across the Mediterranean. Negative precipitation anomalies occur over the Fennoscandian ice sheet, the North European Plain, and as far south as the Alps. This is consistent with a more southerly and zonal storm track, which is linked to a concomitant southern location of the Polar Frontal Jet Stream, generating cold air outbreaks and enhanced... (More)
The Younger Dryas (YD) was a period of rapid climate cooling that occurred at the end of the last glaciation. Here, we present the first palaeoglacier-derived reconstruction of YD precipitation across Europe, determined from 122 reconstructed glaciers and proxy atmospheric temperatures. Positive precipitation anomalies (YD versus modern) are found along much of the western seaboard of Europe and across the Mediterranean. Negative precipitation anomalies occur over the Fennoscandian ice sheet, the North European Plain, and as far south as the Alps. This is consistent with a more southerly and zonal storm track, which is linked to a concomitant southern location of the Polar Frontal Jet Stream, generating cold air outbreaks and enhanced cyclogenesis, especially over the eastern Mediterranean. This atmospheric configuration resembles the modern Scandinavian (SCAND) circulation over Europe (a blocking high pressure over Scandinavia pushing storm tracks south and east), and by analogy, a seasonally varying palaeoprecipitation pattern is interpreted.
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- author
- Rea, Brice R. ; Pellitero, Ramón ; Spagnolo, Matteo ; Hughes, Philip ; Ivy-Ochs, Susan ; Renssen, Hans ; Ribolini, Adriano ; Bakke, Jostein ; Lukas, Sven LU and Braithwaite, Roger J.
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Science Advances
- volume
- 6
- issue
- 50
- article number
- eaba4844
- publisher
- American Association for the Advancement of Science (AAAS)
- external identifiers
-
- scopus:85097943362
- pmid:33310841
- ISSN
- 2375-2548
- DOI
- 10.1126/sciadv.aba4844
- language
- English
- LU publication?
- yes
- id
- 68135580-ff5a-412c-af93-758c02ef8cc9
- date added to LUP
- 2021-01-05 12:54:10
- date last changed
- 2024-08-09 08:50:55
@article{68135580-ff5a-412c-af93-758c02ef8cc9, abstract = {{<p>The Younger Dryas (YD) was a period of rapid climate cooling that occurred at the end of the last glaciation. Here, we present the first palaeoglacier-derived reconstruction of YD precipitation across Europe, determined from 122 reconstructed glaciers and proxy atmospheric temperatures. Positive precipitation anomalies (YD versus modern) are found along much of the western seaboard of Europe and across the Mediterranean. Negative precipitation anomalies occur over the Fennoscandian ice sheet, the North European Plain, and as far south as the Alps. This is consistent with a more southerly and zonal storm track, which is linked to a concomitant southern location of the Polar Frontal Jet Stream, generating cold air outbreaks and enhanced cyclogenesis, especially over the eastern Mediterranean. This atmospheric configuration resembles the modern Scandinavian (SCAND) circulation over Europe (a blocking high pressure over Scandinavia pushing storm tracks south and east), and by analogy, a seasonally varying palaeoprecipitation pattern is interpreted.</p>}}, author = {{Rea, Brice R. and Pellitero, Ramón and Spagnolo, Matteo and Hughes, Philip and Ivy-Ochs, Susan and Renssen, Hans and Ribolini, Adriano and Bakke, Jostein and Lukas, Sven and Braithwaite, Roger J.}}, issn = {{2375-2548}}, language = {{eng}}, number = {{50}}, publisher = {{American Association for the Advancement of Science (AAAS)}}, series = {{Science Advances}}, title = {{Atmospheric circulation over Europe during the Younger Dryas}}, url = {{http://dx.doi.org/10.1126/sciadv.aba4844}}, doi = {{10.1126/sciadv.aba4844}}, volume = {{6}}, year = {{2020}}, }