Spatial structure of the 8200 cal yr BP event in northern Europe
International audience A synthesis of well-dated high-resolution pollen records suggests a spatial structure in the 8200 cal yr BP event in northern Europe. The temperate, thermophilous tree taxa, especially Corylus , Ulmus , and Alnus , decline abruptly between 8300 and 8000 cal yr BP at most sites...
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ftunivnantes:oai:HAL:hal-00298076v1 2023-05-15T14:57:42+02:00 Spatial structure of the 8200 cal yr BP event in northern Europe Seppä, H. Birks, H. J. B. Giesecke, Thomas Hammarlund, D. Alenius, T. Antonsson, K. Bjune, A. E. Heikkilä, M. Macdonald, G. M. Ojala, A. E. K. Telford, R. J. Veski, S. Department of Geology Department of Biological Sciences Bergen (BIO / UiB) University of Bergen (UiB) Bjerknes Centre for Climate Research (BCCR) University of Bergen (UiB)-University of Bergen (UiB) Environmental Change Research Centre University College of London London (UCL) Department of Geography University of Liverpool GeoBiosphere Science Centre Quaternary Sciences Geological Survey of Finland = Geologian tutkimuskeskus tuottaa (GKT) Department of Earth Sciences Uppsala Uppsala University University of California Los Angeles (UCLA) University of California (UC)-University of California (UC) Institute of Geology Tallinn University of Technology (TTÜ) 2007-05-22 https://hal.archives-ouvertes.fr/hal-00298076 https://hal.archives-ouvertes.fr/hal-00298076/document https://hal.archives-ouvertes.fr/hal-00298076/file/cp-3-225-2007.pdf en eng HAL CCSD European Geosciences Union (EGU) hal-00298076 https://hal.archives-ouvertes.fr/hal-00298076 https://hal.archives-ouvertes.fr/hal-00298076/document https://hal.archives-ouvertes.fr/hal-00298076/file/cp-3-225-2007.pdf info:eu-repo/semantics/OpenAccess ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.archives-ouvertes.fr/hal-00298076 Climate of the Past, 2007, 3 (2), pp.225-236 [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2007 ftunivnantes 2022-11-30T00:59:48Z International audience A synthesis of well-dated high-resolution pollen records suggests a spatial structure in the 8200 cal yr BP event in northern Europe. The temperate, thermophilous tree taxa, especially Corylus , Ulmus , and Alnus , decline abruptly between 8300 and 8000 cal yr BP at most sites located south of 61° N, whereas there is no clear change in pollen values at the sites located in the North-European tree-line region. Pollen-based quantitative temperature reconstructions and several other, independent palaeoclimate proxies, such as lacustrine oxygen-isotope records, reflect the same pattern, with no detectable cooling in the sub-arctic region. The observed patterns challenges the general view of the wide-spread occurrence of the 8200 cal yr BP event in the North Atlantic region. An alternative explanation is that the cooling during the 8200 cal yr BP event took place mostly during the winter and spring, and the ecosystems in the south responded sensitively to the cooling during the onset of the growing season. In contrast, in the sub-arctic area, where the vegetation was still dormant and lakes ice-covered, the cold event is not reflected in pollen-based or lake-sediment-based records. Article in Journal/Newspaper Arctic North Atlantic Université de Nantes: HAL-UNIV-NANTES Arctic |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Seppä, H. Birks, H. J. B. Giesecke, Thomas Hammarlund, D. Alenius, T. Antonsson, K. Bjune, A. E. Heikkilä, M. Macdonald, G. M. Ojala, A. E. K. Telford, R. J. Veski, S. Spatial structure of the 8200 cal yr BP event in northern Europe |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience A synthesis of well-dated high-resolution pollen records suggests a spatial structure in the 8200 cal yr BP event in northern Europe. The temperate, thermophilous tree taxa, especially Corylus , Ulmus , and Alnus , decline abruptly between 8300 and 8000 cal yr BP at most sites located south of 61° N, whereas there is no clear change in pollen values at the sites located in the North-European tree-line region. Pollen-based quantitative temperature reconstructions and several other, independent palaeoclimate proxies, such as lacustrine oxygen-isotope records, reflect the same pattern, with no detectable cooling in the sub-arctic region. The observed patterns challenges the general view of the wide-spread occurrence of the 8200 cal yr BP event in the North Atlantic region. An alternative explanation is that the cooling during the 8200 cal yr BP event took place mostly during the winter and spring, and the ecosystems in the south responded sensitively to the cooling during the onset of the growing season. In contrast, in the sub-arctic area, where the vegetation was still dormant and lakes ice-covered, the cold event is not reflected in pollen-based or lake-sediment-based records. |
author2 |
Department of Geology Department of Biological Sciences Bergen (BIO / UiB) University of Bergen (UiB) Bjerknes Centre for Climate Research (BCCR) University of Bergen (UiB)-University of Bergen (UiB) Environmental Change Research Centre University College of London London (UCL) Department of Geography University of Liverpool GeoBiosphere Science Centre Quaternary Sciences Geological Survey of Finland = Geologian tutkimuskeskus tuottaa (GKT) Department of Earth Sciences Uppsala Uppsala University University of California Los Angeles (UCLA) University of California (UC)-University of California (UC) Institute of Geology Tallinn University of Technology (TTÜ) |
format |
Article in Journal/Newspaper |
author |
Seppä, H. Birks, H. J. B. Giesecke, Thomas Hammarlund, D. Alenius, T. Antonsson, K. Bjune, A. E. Heikkilä, M. Macdonald, G. M. Ojala, A. E. K. Telford, R. J. Veski, S. |
author_facet |
Seppä, H. Birks, H. J. B. Giesecke, Thomas Hammarlund, D. Alenius, T. Antonsson, K. Bjune, A. E. Heikkilä, M. Macdonald, G. M. Ojala, A. E. K. Telford, R. J. Veski, S. |
author_sort |
Seppä, H. |
title |
Spatial structure of the 8200 cal yr BP event in northern Europe |
title_short |
Spatial structure of the 8200 cal yr BP event in northern Europe |
title_full |
Spatial structure of the 8200 cal yr BP event in northern Europe |
title_fullStr |
Spatial structure of the 8200 cal yr BP event in northern Europe |
title_full_unstemmed |
Spatial structure of the 8200 cal yr BP event in northern Europe |
title_sort |
spatial structure of the 8200 cal yr bp event in northern europe |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.archives-ouvertes.fr/hal-00298076 https://hal.archives-ouvertes.fr/hal-00298076/document https://hal.archives-ouvertes.fr/hal-00298076/file/cp-3-225-2007.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_source |
ISSN: 1814-9324 EISSN: 1814-9332 Climate of the Past https://hal.archives-ouvertes.fr/hal-00298076 Climate of the Past, 2007, 3 (2), pp.225-236 |
op_relation |
hal-00298076 https://hal.archives-ouvertes.fr/hal-00298076 https://hal.archives-ouvertes.fr/hal-00298076/document https://hal.archives-ouvertes.fr/hal-00298076/file/cp-3-225-2007.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766329830588022784 |