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Evaluation of CMIP6 model performance in simulating the PDO and its future change

Yuchun Du Huopo Chen

大气和海洋科学快报(英文版)2024,Vol.17Issue(3):8-13,6.
大气和海洋科学快报(英文版)2024,Vol.17Issue(3):8-13,6.DOI:10.1016/j.aosl.2023.100449

Evaluation of CMIP6 model performance in simulating the PDO and its future change

Evaluation of CMIP6 model performance in simulating the PDO and its future change

Yuchun Du 1Huopo Chen2

作者信息

  • 1. Nansen-Zhu International Research Centre,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China||University of Chinese Academy of Sciences,Beijing,China
  • 2. Nansen-Zhu International Research Centre,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing,China||Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters,Nanjing University of Information Science and Technology,Nanjing,China
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摘要

Abstract

本文基于40个CMIP6模式输出结果,系统评估了模式对历史时期太平洋年代际振荡(PDO)的模拟性能,并利用其中17个模式的4种共享社会经济路径情景数据预估了PDO未来可能变化趋势.结果表明,CMIP6模式能够合理再现PDO相关海表温度异常的空间模态,但模式模拟PDO位相演变的能力普遍较弱.多模式集合能够合理再现PDO的50年左右周期,但无法模拟出其20年左右周期,并且低估了PDO的变化幅度.在未来变暖情景下,PDO可能在2050左右出现由负位相向正位相的转变,同时其50年左右周期也将明显缩短.

关键词

太平洋年代际振荡/预估/多模式集合/CMIP6

Key words

Pacific decadal oscillation/Projection/MME/CMIP6

引用本文复制引用

Yuchun Du,Huopo Chen..Evaluation of CMIP6 model performance in simulating the PDO and its future change[J].大气和海洋科学快报(英文版),2024,17(3):8-13,6.

基金项目

This study was supported by the National Natural Science Founda-tion of China[grant number 42221004]. ()

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