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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Published in:Climate of the Past
Main Author: Claussen*, M.
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2009
Subjects:
Online Access:https://doi.org/10.5194/cp-5-203-2009
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spelling ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00030259 2023-05-15T18:18:14+02:00 Late Quaternary vegetation-climate feedbacks Claussen*, M. 2009-06 electronic https://doi.org/10.5194/cp-5-203-2009 https://noa.gwlb.de/receive/cop_mods_00030259 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030213/cp-5-203-2009.pdf https://cp.copernicus.org/articles/5/203/2009/cp-5-203-2009.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-5-203-2009 https://noa.gwlb.de/receive/cop_mods_00030259 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030213/cp-5-203-2009.pdf https://cp.copernicus.org/articles/5/203/2009/cp-5-203-2009.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2009 ftnonlinearchiv https://doi.org/10.5194/cp-5-203-2009 2022-02-08T22:47:18Z 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 Niedersächsisches Online-Archiv NOA Climate of the Past 5 2 203 216
institution Open Polar
collection Niedersächsisches Online-Archiv NOA
op_collection_id ftnonlinearchiv
language English
topic article
Verlagsveröffentlichung
spellingShingle article
Verlagsveröffentlichung
Claussen*, M.
Late Quaternary vegetation-climate feedbacks
topic_facet article
Verlagsveröffentlichung
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 Claussen*, M.
author_facet Claussen*, M.
author_sort Claussen*, M.
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 https://doi.org/10.5194/cp-5-203-2009
https://noa.gwlb.de/receive/cop_mods_00030259
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030213/cp-5-203-2009.pdf
https://cp.copernicus.org/articles/5/203/2009/cp-5-203-2009.pdf
genre Sea ice
genre_facet Sea ice
op_relation Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332
https://doi.org/10.5194/cp-5-203-2009
https://noa.gwlb.de/receive/cop_mods_00030259
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00030213/cp-5-203-2009.pdf
https://cp.copernicus.org/articles/5/203/2009/cp-5-203-2009.pdf
op_rights uneingeschränkt
info:eu-repo/semantics/openAccess
op_doi https://doi.org/10.5194/cp-5-203-2009
container_title Climate of the Past
container_volume 5
container_issue 2
container_start_page 203
op_container_end_page 216
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