Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks
Despite tectonic conditions and atmospheric CO2 levels (pCO(2)) similar to those of present-day, geological reconstructions from the mid-Pliocene (3.3-3.0 Ma) document high lake levels in the Sahel and mesic conditions in subtropical Eurasia, suggesting drastic reorganizations of subtropical terrest...
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ftncar:oai:drupal-site.org:articles_25238 2024-04-14T08:13:15+00:00 Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks Feng, Ran (author) Bhattacharya, Tripti (author) Otto-Bliesner, Bette L. (author) Brady, Esther C. (author) Haywood, Alan M. (author) Tindall, Julia C. (author) Hunter, Stephen J. (author) Abe-Ouchi, Ayako (author) Chan, Wing-Le (author) Kageyama, Masa (author) Contoux, Camille (author) Guo, Chuncheng (author) Li, Xiangyu (author) Lohmann, Gerrit (author) Stepanek, Christian (author) Tan, Ning (author) Zhang, Qiong (author) Zhang, Zhongshi (author) Han, Zixuan (author) Williams, Charles J. R. (author) Lunt, Daniel J. (author) Dowsett, Harry J. (author) Chandan, Deepak (author) Peltier, W. Richard (author) 2022-03-14 https://doi.org/10.1038/s41467-022-28814-7 en eng Nature Communications--Nat Commun--2041-1723 NERC HadGEM3-GC31-LL model output prepared for CMIP6 PMIP midPliocene-eoi400--10.22033/ESGF/CMIP6.12130 articles:25238 doi:10.1038/s41467-022-28814-7 ark:/85065/d7k64nq8 Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. article Text 2022 ftncar https://doi.org/10.1038/s41467-022-28814-7 2024-03-21T18:00:26Z Despite tectonic conditions and atmospheric CO2 levels (pCO(2)) similar to those of present-day, geological reconstructions from the mid-Pliocene (3.3-3.0 Ma) document high lake levels in the Sahel and mesic conditions in subtropical Eurasia, suggesting drastic reorganizations of subtropical terrestrial hydroclimate during this interval. Here, using a compilation of proxy data and multi-model paleoclimate simulations, we show that the mid-Pliocene hydroclimate state is not driven by direct CO2 radiative forcing but by a loss of northern high-latitude ice sheets and continental greening. These ice sheet and vegetation changes are long-term Earth system feedbacks to elevated pCO(2). Further, the moist conditions in the Sahel and subtropical Eurasia during the mid-Pliocene are a product of enhanced tropospheric humidity and a stationary wave response to the surface warming pattern, which varies strongly with land cover changes. These findings highlight the potential for amplified terrestrial hydroclimate responses over long timescales to a sustained CO2 forcing. 1852977 Article in Journal/Newspaper Ice Sheet OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Nature Communications 13 1 |
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Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
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ftncar |
language |
English |
description |
Despite tectonic conditions and atmospheric CO2 levels (pCO(2)) similar to those of present-day, geological reconstructions from the mid-Pliocene (3.3-3.0 Ma) document high lake levels in the Sahel and mesic conditions in subtropical Eurasia, suggesting drastic reorganizations of subtropical terrestrial hydroclimate during this interval. Here, using a compilation of proxy data and multi-model paleoclimate simulations, we show that the mid-Pliocene hydroclimate state is not driven by direct CO2 radiative forcing but by a loss of northern high-latitude ice sheets and continental greening. These ice sheet and vegetation changes are long-term Earth system feedbacks to elevated pCO(2). Further, the moist conditions in the Sahel and subtropical Eurasia during the mid-Pliocene are a product of enhanced tropospheric humidity and a stationary wave response to the surface warming pattern, which varies strongly with land cover changes. These findings highlight the potential for amplified terrestrial hydroclimate responses over long timescales to a sustained CO2 forcing. 1852977 |
author2 |
Feng, Ran (author) Bhattacharya, Tripti (author) Otto-Bliesner, Bette L. (author) Brady, Esther C. (author) Haywood, Alan M. (author) Tindall, Julia C. (author) Hunter, Stephen J. (author) Abe-Ouchi, Ayako (author) Chan, Wing-Le (author) Kageyama, Masa (author) Contoux, Camille (author) Guo, Chuncheng (author) Li, Xiangyu (author) Lohmann, Gerrit (author) Stepanek, Christian (author) Tan, Ning (author) Zhang, Qiong (author) Zhang, Zhongshi (author) Han, Zixuan (author) Williams, Charles J. R. (author) Lunt, Daniel J. (author) Dowsett, Harry J. (author) Chandan, Deepak (author) Peltier, W. Richard (author) |
format |
Article in Journal/Newspaper |
title |
Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks |
spellingShingle |
Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks |
title_short |
Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks |
title_full |
Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks |
title_fullStr |
Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks |
title_full_unstemmed |
Past terrestrial hydroclimate sensitivity controlled by Earth system feedbacks |
title_sort |
past terrestrial hydroclimate sensitivity controlled by earth system feedbacks |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41467-022-28814-7 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
Nature Communications--Nat Commun--2041-1723 NERC HadGEM3-GC31-LL model output prepared for CMIP6 PMIP midPliocene-eoi400--10.22033/ESGF/CMIP6.12130 articles:25238 doi:10.1038/s41467-022-28814-7 ark:/85065/d7k64nq8 |
op_rights |
Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |
op_doi |
https://doi.org/10.1038/s41467-022-28814-7 |
container_title |
Nature Communications |
container_volume |
13 |
container_issue |
1 |
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1796311186887671808 |