Highly Restricted Near‐Surface Permafrost Extent During the Mid-Pliocene Warm Period
In: Proceedings of the National Academy of Sciences (PNAS), Jg. 120 (2023-08-28), Heft 36
Online
report
Zugriff:
To better understand how near‐surface permafrost may respond to future warming, we explore the equilibrium spatial extent of near‐surface permafrost during the mid-Pliocene warm period (mPWP), which shares characteristics of the projected future climate. Our simulations, which are constrained by proxy records, suggest highly restricted near‐surface permafrost extent during the mPWP, akin to future large-scale permafrost degradation projections of our model for the end of this century. Our study indicates dramatically smaller-than-present near‐surface permafrost extent in the geological past under climate conditions analogous to those expected if global warming continues unabated. This absence in permafrost will come with critical implications for the global carbon cycle, human livelihoods and infrastructures, and surface and subsurface hydrology.
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Highly Restricted Near‐Surface Permafrost Extent During the Mid-Pliocene Warm Period
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Autor/in / Beteiligte Person: | Guo, Donglin ; Wang, Huijun ; Romanovsky, Vladimir E. ; Haywood, Alan M. ; Pepin, Nick ; Salzmann, Ulrich ; Sun, Jianqi ; Yan, Qing ; Zhang, Zhongshi ; Li, Xiangyu ; Otto-Bliesner, Bette L. ; Feng, Ran ; Lohmann, Gerrit ; Stepanek, Christian ; Abe-Ouchi, Ayako ; Chan, Wing-Le ; W. Richard Peltier ; Chandan, Deepak ; Anna S. von der Heydt ; Contoux, Camille ; Chandler, Mark A. ; Tan, Ning ; Zhang, Qiong ; Hunter, Stephen J. ; Kamae, Youichi |
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Zeitschrift: | Proceedings of the National Academy of Sciences (PNAS), Jg. 120 (2023-08-28), Heft 36 |
Veröffentlichung: | United States: NASA Center for Aerospace Information (CASI), 2023 |
Medientyp: | report |
ISSN: | 1091-6490 (print) ; 0027-8424 (print) |
DOI: | 10.1073/pnas.2301954120 |
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