Interglacial analogues of the Holocene and its natural near future
In an attempt to find potential interglacial analogues of our present interglacial and its natural future,five interglacials (MIS-1, 5, 9, 11 and 19) are studied in terms of their astronomical characteristics,greenhouse gases concentration and climate simulated using both snapshot and transient expe...
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ftunistlouisbrus:oai:dial.uclouvain.be:boreal:165306 2024-05-12T08:11:34+00:00 Interglacial analogues of the Holocene and its natural near future Yin, Qiuzhen Berger, André UCL - SST/ELI/ELIC - Earth & Climate 2015 http://hdl.handle.net/2078.1/165306 https://doi.org/10.1016/j.quascirev.2015.04.008 eng eng Pergamon boreal:165306 http://hdl.handle.net/2078.1/165306 doi:10.1016/j.quascirev.2015.04.008 urn:ISSN:0277-3791 urn:EISSN:1873-457X info:eu-repo/semantics/restrictedAccess Quaternary Science Reviews, Vol. 120, no. 1, p. 28-46 (2015) info:eu-repo/semantics/article 2015 ftunistlouisbrus https://doi.org/10.1016/j.quascirev.2015.04.008 2024-04-18T17:46:07Z In an attempt to find potential interglacial analogues of our present interglacial and its natural future,five interglacials (MIS-1, 5, 9, 11 and 19) are studied in terms of their astronomical characteristics,greenhouse gases concentration and climate simulated using both snapshot and transient experiments. Transient simulations covering a full range of obliquity, precession and eccentricity allow to develop an OPE index to estimate the climate sensitivity to astronomical forcing. They also show that obliquity and precession have different weight on the annual mean temperature and precipitation of different latitudinal zones, leading to varying phasing of these climate variables between different latitudes. However,the variations in boreal summer temperature of different latitudes (except the Southern Ocean) are in phase and are dominated by precession. All the interglacials are shown to be warmer than the natural climate of the present day and of the next centuries during boreal summer and for the annual mean temperature with varying duration and intensity. Such warming is mainly caused by changes in insolation,unlike the present global warming which mainly results from anthropogenic CO2 increase. The exceptionally long duration of MIS-11 is confirmed by our simulations, and it is demonstrated to be related to the long-lasting low eccentricity and high CO2 concentration and to the anti-phase relationship between obliquity maximum and precession minimum during MIS-11. As far as the variations of annual and seasonal temperatures are concerned, both snapshot and transient simulations show that MIS-19 is the best analogue of the present interglacial. MIS-11 is also a decent analogue when the impact of insolation alone is considered, but it is warmer than MIS-1 when the impact of CO2 is additionally included. Due to the large amplitude in the variations of insolation, MIS-5 and MIS-9 can hardly be considered as an analogue of the natural present-day climate and of its near future, but such warm climates could be, at ... Article in Journal/Newspaper Southern Ocean DIAL@USL-B (Université Saint-Louis, Bruxelles) Southern Ocean Quaternary Science Reviews 120 28 46 |
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Open Polar |
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DIAL@USL-B (Université Saint-Louis, Bruxelles) |
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ftunistlouisbrus |
language |
English |
description |
In an attempt to find potential interglacial analogues of our present interglacial and its natural future,five interglacials (MIS-1, 5, 9, 11 and 19) are studied in terms of their astronomical characteristics,greenhouse gases concentration and climate simulated using both snapshot and transient experiments. Transient simulations covering a full range of obliquity, precession and eccentricity allow to develop an OPE index to estimate the climate sensitivity to astronomical forcing. They also show that obliquity and precession have different weight on the annual mean temperature and precipitation of different latitudinal zones, leading to varying phasing of these climate variables between different latitudes. However,the variations in boreal summer temperature of different latitudes (except the Southern Ocean) are in phase and are dominated by precession. All the interglacials are shown to be warmer than the natural climate of the present day and of the next centuries during boreal summer and for the annual mean temperature with varying duration and intensity. Such warming is mainly caused by changes in insolation,unlike the present global warming which mainly results from anthropogenic CO2 increase. The exceptionally long duration of MIS-11 is confirmed by our simulations, and it is demonstrated to be related to the long-lasting low eccentricity and high CO2 concentration and to the anti-phase relationship between obliquity maximum and precession minimum during MIS-11. As far as the variations of annual and seasonal temperatures are concerned, both snapshot and transient simulations show that MIS-19 is the best analogue of the present interglacial. MIS-11 is also a decent analogue when the impact of insolation alone is considered, but it is warmer than MIS-1 when the impact of CO2 is additionally included. Due to the large amplitude in the variations of insolation, MIS-5 and MIS-9 can hardly be considered as an analogue of the natural present-day climate and of its near future, but such warm climates could be, at ... |
author2 |
UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Yin, Qiuzhen Berger, André |
spellingShingle |
Yin, Qiuzhen Berger, André Interglacial analogues of the Holocene and its natural near future |
author_facet |
Yin, Qiuzhen Berger, André |
author_sort |
Yin, Qiuzhen |
title |
Interglacial analogues of the Holocene and its natural near future |
title_short |
Interglacial analogues of the Holocene and its natural near future |
title_full |
Interglacial analogues of the Holocene and its natural near future |
title_fullStr |
Interglacial analogues of the Holocene and its natural near future |
title_full_unstemmed |
Interglacial analogues of the Holocene and its natural near future |
title_sort |
interglacial analogues of the holocene and its natural near future |
publisher |
Pergamon |
publishDate |
2015 |
url |
http://hdl.handle.net/2078.1/165306 https://doi.org/10.1016/j.quascirev.2015.04.008 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Quaternary Science Reviews, Vol. 120, no. 1, p. 28-46 (2015) |
op_relation |
boreal:165306 http://hdl.handle.net/2078.1/165306 doi:10.1016/j.quascirev.2015.04.008 urn:ISSN:0277-3791 urn:EISSN:1873-457X |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2015.04.008 |
container_title |
Quaternary Science Reviews |
container_volume |
120 |
container_start_page |
28 |
op_container_end_page |
46 |
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1798855317208956928 |