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  4. 中国科学院新生代地质与环境重点实验室
Polar amplification of Pliocene climate by elevated trace gas radiative forcing

文献类型：期刊论文

作者Hopcroft, Peter O.6; Ramstein, Gilles5; Pugh, Thomas A. M.6,7; Hunter, Stephen J.8; Murguia-Flores, Fabiola1,9; Quiquet, Aurelien2,5; Sun, Yong3,5; Tan, Ning4,5; Valdes, Paul J.9
刊名PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
出版日期2020-09-22
卷号117期号:38页码:23401-23407
ISSN号0027-8424
关键词methane Pliocene GCM trace gas biogeochemistry wetland
DOI10.1073/pnas.2002320117
英文摘要Warm periods in Earth's history offer opportunities to understand the dynamics of the Earth system under conditions that are similar to those expected in the near future. The Middle Pliocene warm period (MPWP), from 3.3 to 3.0 My B.P, is the most recent time when atmospheric CO2 levels were as high as today. However, climate model simulations of the Pliocene underestimate high-latitude warming that has been reconstructed from fossil pollen samples and other geological archives. One possible reason for this is that enhanced non-CO2 trace gas radiative forcing during the Pliocene, including from methane (CH4), has not been included in modeling. We use a suite of terrestrial biogeochemistry models forced with MPWP climate model simulations from four different climate models to produce a comprehensive reconstruction of the MPWP CH4 cycle, including uncertainty. We simulate an atmospheric CH 4 mixing ratio of 1,000 to 1,200 ppbv, which in combination with estimates of radiative forcing from N2O and 0 3 , contributes a non-CO2 radiative forcing of 0.9 W.m(-2) (range 0.6 to 1.1), which is 43% (range 36 to 56%) of the CO2 radiative forcing used in MPWP climate simulations. This additional forcing would cause a global surface temperature increase of 0.6 to 1.0 degrees C, with amplified changes at high latitudes, improving agreement with geological evidence of Middle Pliocene climate. We conclude that natural trace gas feedbacks are critical for interpreting climate warmth during the Pliocene and potentially many other warm phases of the Cenezoic. These results also imply that using Pliocene CO2 and temperature reconstructions alone may lead to overestimates of the fast or Charney climate sensitivity.
WOS关键词PLIOMIP EXPERIMENTAL-DESIGN ; VEGETATION DYNAMICS ; SCALE FEATURES ; METHANE ; MODEL ; WETLANDS ; RECONSTRUCTION ; EMISSIONS ; INCREASE ; SOIL
资助项目University of Birmingham Fellowship ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE"[A2016-992936] ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency[ANR-17-CE31-0010] ; European Research Council under the European Union[758873]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATL ACAD SCIENCES
WOS记录号WOS:000575888700006
资助机构University of Birmingham Fellowship ; University of Birmingham Fellowship ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; European Research Council under the European Union ; European Research Council under the European Union ; University of Birmingham Fellowship ; University of Birmingham Fellowship ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; European Research Council under the European Union ; European Research Council under the European Union ; University of Birmingham Fellowship ; University of Birmingham Fellowship ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; European Research Council under the European Union ; European Research Council under the European Union ; University of Birmingham Fellowship ; University of Birmingham Fellowship ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French project Les Enveloppes Fluides et l'Environnement "ComPreNdrE" ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; French State Program Investissements d'Avenir (Agence Nationale de la Recherche [ANR]) ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; ANR Human Ancestors Dispersal: the role of Climate project of the French National Research Agency ; European Research Council under the European Union ; European Research Council under the European Union
源URL[http://ir.iggcas.ac.cn/handle/132A11/98298]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Hopcroft, Peter O.
作者单位1.Univ Nacl Autonoma Mexico, Inst Invest Ecosistemas & Sustentabilidad, Morelia 58190, Michoacan, Mexico
2.Inst Louis Bachelier, Chair Energy & Prosper, F-75002 Paris, France
3.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modelling Atmospher Sci & Geo, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
5.Univ Paris Saclay, Lab Sci Climat & Environm, Inst Pierre Simon Laplace,Univ St Quentin En Yvel, Commissariat Energie Atom & Energies Alternat,CNR, F-91191 Gif Sur Yvette, France
6.Univ Birmingham, Sch Geog Earth & Environm Sci, Birmingham B15 2TT, W Midlands, England
7.Univ Birmingham, Birmingham Inst Forest Res, Birmingham B15 2TT, W Midlands, England
8.Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England
9.Univ Bristol, Sch Geog Sci, Bristol Res Initiat Dynam Global Environm, Bristol BS8 1SS, Avon, England
推荐引用方式
GB/T 7714		 Hopcroft, Peter O.,Ramstein, Gilles,Pugh, Thomas A. M.,et al. Polar amplification of Pliocene climate by elevated trace gas radiative forcing[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2020,117(38):23401-23407.
APA Hopcroft, Peter O..,Ramstein, Gilles.,Pugh, Thomas A. M..,Hunter, Stephen J..,Murguia-Flores, Fabiola.,...&Valdes, Paul J..(2020).Polar amplification of Pliocene climate by elevated trace gas radiative forcing.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,117(38),23401-23407.
MLA Hopcroft, Peter O.,et al."Polar amplification of Pliocene climate by elevated trace gas radiative forcing".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 117.38(2020):23401-23407.

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来源：地质与地球物理研究所

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