Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A
This paper describes the experimental design and model results of the climate simulations of the mid-Pliocene Warm Period (mPWP, ca. 3.3–3 Ma) using the Institut Pierre Simon Laplace model (IPSLCM5A), in the framework of the Pliocene Model Intercomparison Project (PlioMIP). We use the IPSL atmospher...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00025650 2023-05-15T16:41:18+02:00 Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A Contoux, C. Ramstein, G. Jost, A. 2012-06 electronic https://doi.org/10.5194/gmd-5-903-2012 https://noa.gwlb.de/receive/cop_mods_00025650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025605/gmd-5-903-2012.pdf https://gmd.copernicus.org/articles/5/903/2012/gmd-5-903-2012.pdf eng eng Copernicus Publications Geoscientific Model Development -- http://www.bibliothek.uni-regensburg.de/ezeit/?2456725 -- http://www.geosci-model-dev.net/ -- 1991-9603 https://doi.org/10.5194/gmd-5-903-2012 https://noa.gwlb.de/receive/cop_mods_00025650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025605/gmd-5-903-2012.pdf https://gmd.copernicus.org/articles/5/903/2012/gmd-5-903-2012.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2012 ftnonlinearchiv https://doi.org/10.5194/gmd-5-903-2012 2022-02-08T22:49:36Z This paper describes the experimental design and model results of the climate simulations of the mid-Pliocene Warm Period (mPWP, ca. 3.3–3 Ma) using the Institut Pierre Simon Laplace model (IPSLCM5A), in the framework of the Pliocene Model Intercomparison Project (PlioMIP). We use the IPSL atmosphere ocean general circulation model (AOGCM), and its atmospheric component alone (AGCM), to simulate the climate of the mPWP. Boundary conditions such as sea surface temperatures (SSTs), topography, ice-sheet extent and vegetation are derived from the ones imposed by the Pliocene Model Intercomparison Project (PlioMIP), described in Haywood et al. (2010, 2011). We first describe the IPSL model main features, and then give a full description of the boundary conditions used for atmospheric model and coupled model experiments. The climatic outputs of the mPWP simulations are detailed and compared to the corresponding control simulations. The simulated warming relative to the control simulation is 1.94 °C in the atmospheric and 2.07 °C in the coupled model experiments. In both experiments, warming is larger at high latitudes. Mechanisms governing the simulated precipitation patterns are different in the coupled model than in the atmospheric model alone, because of the reduced gradients in imposed SSTs, which impacts the Hadley and Walker circulations. In addition, a sensitivity test to the change of land-sea mask in the atmospheric model, representing a sea-level change from present-day to 25 m higher during the mid-Pliocene, is described. We find that surface temperature differences can be large (several degrees Celsius) but are restricted to the areas that were changed from ocean to land or vice versa. In terms of precipitation, impact on polar regions is minor although the change in land-sea mask is significant in these areas. Article in Journal/Newspaper Ice Sheet Niedersächsisches Online-Archiv NOA Laplace ENVELOPE(141.467,141.467,-66.782,-66.782) Geoscientific Model Development 5 3 903 917 |
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Niedersächsisches Online-Archiv NOA |
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English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Contoux, C. Ramstein, G. Jost, A. Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A |
topic_facet |
article Verlagsveröffentlichung |
description |
This paper describes the experimental design and model results of the climate simulations of the mid-Pliocene Warm Period (mPWP, ca. 3.3–3 Ma) using the Institut Pierre Simon Laplace model (IPSLCM5A), in the framework of the Pliocene Model Intercomparison Project (PlioMIP). We use the IPSL atmosphere ocean general circulation model (AOGCM), and its atmospheric component alone (AGCM), to simulate the climate of the mPWP. Boundary conditions such as sea surface temperatures (SSTs), topography, ice-sheet extent and vegetation are derived from the ones imposed by the Pliocene Model Intercomparison Project (PlioMIP), described in Haywood et al. (2010, 2011). We first describe the IPSL model main features, and then give a full description of the boundary conditions used for atmospheric model and coupled model experiments. The climatic outputs of the mPWP simulations are detailed and compared to the corresponding control simulations. The simulated warming relative to the control simulation is 1.94 °C in the atmospheric and 2.07 °C in the coupled model experiments. In both experiments, warming is larger at high latitudes. Mechanisms governing the simulated precipitation patterns are different in the coupled model than in the atmospheric model alone, because of the reduced gradients in imposed SSTs, which impacts the Hadley and Walker circulations. In addition, a sensitivity test to the change of land-sea mask in the atmospheric model, representing a sea-level change from present-day to 25 m higher during the mid-Pliocene, is described. We find that surface temperature differences can be large (several degrees Celsius) but are restricted to the areas that were changed from ocean to land or vice versa. In terms of precipitation, impact on polar regions is minor although the change in land-sea mask is significant in these areas. |
format |
Article in Journal/Newspaper |
author |
Contoux, C. Ramstein, G. Jost, A. |
author_facet |
Contoux, C. Ramstein, G. Jost, A. |
author_sort |
Contoux, C. |
title |
Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A |
title_short |
Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A |
title_full |
Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A |
title_fullStr |
Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A |
title_full_unstemmed |
Modelling the mid-Pliocene Warm Period climate with the IPSL coupled model and its atmospheric component LMDZ5A |
title_sort |
modelling the mid-pliocene warm period climate with the ipsl coupled model and its atmospheric component lmdz5a |
publisher |
Copernicus Publications |
publishDate |
2012 |
url |
https://doi.org/10.5194/gmd-5-903-2012 https://noa.gwlb.de/receive/cop_mods_00025650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025605/gmd-5-903-2012.pdf https://gmd.copernicus.org/articles/5/903/2012/gmd-5-903-2012.pdf |
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ENVELOPE(141.467,141.467,-66.782,-66.782) |
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Laplace |
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Laplace |
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Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
Geoscientific Model Development -- http://www.bibliothek.uni-regensburg.de/ezeit/?2456725 -- http://www.geosci-model-dev.net/ -- 1991-9603 https://doi.org/10.5194/gmd-5-903-2012 https://noa.gwlb.de/receive/cop_mods_00025650 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00025605/gmd-5-903-2012.pdf https://gmd.copernicus.org/articles/5/903/2012/gmd-5-903-2012.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/gmd-5-903-2012 |
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Geoscientific Model Development |
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5 |
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3 |
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903 |
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917 |
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