Late Quaternary vegetation-climate feedbacks

Feedbacks between vegetation and other components of the climate system are discussed with respect to their influence on climate dynamics during the late Quaternary, i.e., the last glacial-interglacial cycles. When weighting current understanding based on interpretation of palaeobotanic and palaeocl...

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Main Author: M. Claussen*
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2009
Subjects:
geo
Online Access:http://www.clim-past.net/5/203/2009/cp-5-203-2009.pdf
https://doaj.org/article/ef8c0f7b0706442ebe3d0ed56dd71f0d
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spelling fttriple:oai:gotriple.eu:oai:doaj.org/article:ef8c0f7b0706442ebe3d0ed56dd71f0d 2023-05-15T18:18:16+02:00 Late Quaternary vegetation-climate feedbacks M. Claussen* 2009-06-01 http://www.clim-past.net/5/203/2009/cp-5-203-2009.pdf https://doaj.org/article/ef8c0f7b0706442ebe3d0ed56dd71f0d en eng Copernicus Publications 1814-9324 1814-9332 http://www.clim-past.net/5/203/2009/cp-5-203-2009.pdf https://doaj.org/article/ef8c0f7b0706442ebe3d0ed56dd71f0d undefined Climate of the Past, Vol 5, Iss 2, Pp 203-216 (2009) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2009 fttriple 2023-01-22T19:36:21Z Feedbacks between vegetation and other components of the climate system are discussed with respect to their influence on climate dynamics during the late Quaternary, i.e., the last glacial-interglacial cycles. When weighting current understanding based on interpretation of palaeobotanic and palaeoclimatic evidence by numerical climate system models, a number of arguments speak in favour of vegetation dynamics being an amplifier of orbital forcing. (a) The vegetation-snow albedo feedback in synergy with the sea-ice albedo feedback tends to amplify Northern Hemisphere and global mean temperature changes. (b) Variations in the extent of the largest desert on Earth, the Sahara, appear to be amplified by biogeophysical feedback. (c) Biogeochemical feedbacks in the climate system in relation to vegetation migration are supposed to be negative on time scales of glacial cycles. However, with respect to changes in global mean temperature, they are presumably weaker than the positive biogeophysical feedbacks. Article in Journal/Newspaper Sea ice Unknown
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic geo
envir
spellingShingle geo
envir
M. Claussen*
Late Quaternary vegetation-climate feedbacks
topic_facet geo
envir
description Feedbacks between vegetation and other components of the climate system are discussed with respect to their influence on climate dynamics during the late Quaternary, i.e., the last glacial-interglacial cycles. When weighting current understanding based on interpretation of palaeobotanic and palaeoclimatic evidence by numerical climate system models, a number of arguments speak in favour of vegetation dynamics being an amplifier of orbital forcing. (a) The vegetation-snow albedo feedback in synergy with the sea-ice albedo feedback tends to amplify Northern Hemisphere and global mean temperature changes. (b) Variations in the extent of the largest desert on Earth, the Sahara, appear to be amplified by biogeophysical feedback. (c) Biogeochemical feedbacks in the climate system in relation to vegetation migration are supposed to be negative on time scales of glacial cycles. However, with respect to changes in global mean temperature, they are presumably weaker than the positive biogeophysical feedbacks.
format Article in Journal/Newspaper
author M. Claussen*
author_facet M. Claussen*
author_sort M. Claussen*
title Late Quaternary vegetation-climate feedbacks
title_short Late Quaternary vegetation-climate feedbacks
title_full Late Quaternary vegetation-climate feedbacks
title_fullStr Late Quaternary vegetation-climate feedbacks
title_full_unstemmed Late Quaternary vegetation-climate feedbacks
title_sort late quaternary vegetation-climate feedbacks
publisher Copernicus Publications
publishDate 2009
url http://www.clim-past.net/5/203/2009/cp-5-203-2009.pdf
https://doaj.org/article/ef8c0f7b0706442ebe3d0ed56dd71f0d
genre Sea ice
genre_facet Sea ice
op_source Climate of the Past, Vol 5, Iss 2, Pp 203-216 (2009)
op_relation 1814-9324
1814-9332
http://www.clim-past.net/5/203/2009/cp-5-203-2009.pdf
https://doaj.org/article/ef8c0f7b0706442ebe3d0ed56dd71f0d
op_rights undefined
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