Dependence of climate feedbacks on temperature patterns:interpreting IPCC AR6
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    Abstract:

    Based on the content of Chapter 7 from the Sixth Assessment Report (AR6) contributed by the Intergovernmental Panel on Climate Change (IPCC) Working Group I (WGI),this paper interprets the dependence of climate feedbacks on temperature patterns in detail.Compared with the Fifth Assessment Report (AR5),the understanding of the relationship between transient changes in climate feedback and evolving spatial patterns of surface temperature has been greatly improved in AR6.The assessments show that under greenhouse gas forcing,it is very likely that the warming in the Arctic will be more pronounced than on global average over the 21st century.On centennial timescales,the Antarctic will warm more than the tropics and the tropical Pacific Ocean east-west sea surface temperature (SST) gradient will weaken,with greater warming in the east than the west.AR6 identifies changes in the degree of polar amplification over time,particularly in the Southern Hemisphere,and changes in the tropical Pacific Ocean east-west SST gradient over time as key factors affecting how climate feedbacks may evolve in the future.Climate feedbacks,particularly from clouds,are expected to become less negative (more amplifying) on multi-decadal timescales as the spatial pattern of surface warming evolves.

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王菲,张华,刘梦婷,于晓超,赵树云,2022.气候反馈对温度空间模态的依赖性:IPCC AR6解读[J].大气科学学报,45(6):826-834. WANG Fei, ZHANG Hua, LIU Mengting, YU Xiaochao, ZHAO Shuyun,2022. Dependence of climate feedbacks on temperature patterns:interpreting IPCC AR6[J]. Trans Atmos Sci,45(6):826-834.

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History
  • Received:September 28,2022
  • Revised:November 02,2022
  • Adopted:
  • Online: December 15,2022
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