Spatial structure of the 8200 cal yr BP event in northern Europe
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, w...
Main Authors: | , , , , , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2007
|
Subjects: | |
Online Access: | http://www.clim-past.net/3/225/2007/cp-3-225-2007.pdf https://doaj.org/article/78d504f1849141a19d91f99609c02428 |
id |
fttriple:oai:gotriple.eu:oai:doaj.org/article:78d504f1849141a19d91f99609c02428 |
---|---|
record_format |
openpolar |
spelling |
fttriple:oai:gotriple.eu:oai:doaj.org/article:78d504f1849141a19d91f99609c02428 2023-05-15T14:57:10+02:00 Spatial structure of the 8200 cal yr BP event in northern Europe H. Seppä H. J. B. Birks T. Giesecke D. Hammarlund T. Alenius K. Antonsson A. E. Bjune M. Heikkilä G. M. MacDonald A. E. K. Ojala R. J. Telford S. Veski 2007-01-01 http://www.clim-past.net/3/225/2007/cp-3-225-2007.pdf https://doaj.org/article/78d504f1849141a19d91f99609c02428 en eng Copernicus Publications 1814-9324 1814-9332 http://www.clim-past.net/3/225/2007/cp-3-225-2007.pdf https://doaj.org/article/78d504f1849141a19d91f99609c02428 undefined Climate of the Past, Vol 3, Iss 2, Pp 225-236 (2007) anthro-bio geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2007 fttriple 2023-01-22T19:11:08Z 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 Unknown Arctic |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
anthro-bio geo |
spellingShingle |
anthro-bio geo H. Seppä H. J. B. Birks T. Giesecke D. Hammarlund T. Alenius K. Antonsson A. E. Bjune M. Heikkilä G. M. MacDonald A. E. K. Ojala R. J. Telford S. Veski Spatial structure of the 8200 cal yr BP event in northern Europe |
topic_facet |
anthro-bio geo |
description |
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. |
format |
Article in Journal/Newspaper |
author |
H. Seppä H. J. B. Birks T. Giesecke D. Hammarlund T. Alenius K. Antonsson A. E. Bjune M. Heikkilä G. M. MacDonald A. E. K. Ojala R. J. Telford S. Veski |
author_facet |
H. Seppä H. J. B. Birks T. Giesecke D. Hammarlund T. Alenius K. Antonsson A. E. Bjune M. Heikkilä G. M. MacDonald A. E. K. Ojala R. J. Telford S. Veski |
author_sort |
H. Seppä |
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 |
Copernicus Publications |
publishDate |
2007 |
url |
http://www.clim-past.net/3/225/2007/cp-3-225-2007.pdf https://doaj.org/article/78d504f1849141a19d91f99609c02428 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic |
genre_facet |
Arctic North Atlantic |
op_source |
Climate of the Past, Vol 3, Iss 2, Pp 225-236 (2007) |
op_relation |
1814-9324 1814-9332 http://www.clim-past.net/3/225/2007/cp-3-225-2007.pdf https://doaj.org/article/78d504f1849141a19d91f99609c02428 |
op_rights |
undefined |
_version_ |
1766329263165800448 |