大气和海洋科学快报(英文版)2021,Vol.14Issue(3):54-59,6.
Changes in polar amplification in response to increasing warming in CMIP6
Changes in polar amplification in response to increasing warming in CMIP6
摘要
Abstract
由于全球变暖,极地地区的气候经历了明显的变暖放大.在本项研究中,我们根据CMIP6模式的三种变暖情景(SSP1-2,6,SSP2-4.5和SSP5-8.5)下,极地放大变化对各个反馈机制(包括普朗克,温度递减率,云,水蒸气,反照率反馈,CO2强迫,海洋热吸收和大气热传输)的响应进行了分析.结果表明,通过用“辐射核”方法量化不同反馈机制对地表温度的增温贡献,北极放大(AA)强于南极放大(ANA),由温度递减率反馈主导,其次是反照率和普朗克反馈.此外,海洋的热吸收导致冬季比夏季有更强的极地变暖.在冬季,温度递减率反馈主导了AA大于ANA.AA和ANA的模式间差异随着全球变暖的增强而减小.关键词
北极放大/南极放大/辐射核/CMIP6/全球变暖Key words
Arctic amplification/Antarctic amplification/Radiative kernel/CMIP6/Global warming引用本文复制引用
Shenlin Cai ,Pang-Chi Hsu,Fei Liu..Changes in polar amplification in response to increasing warming in CMIP6[J].大气和海洋科学快报(英文版),2021,14(3):54-59,6.基金项目
This work was supported by the National Natural Science Foundation of China[grant number 41420104002]and by the Natural Science Foundation of Jiangsu Province[grant numbers BK20150907 and 14KJA170002]. ()