Potential impacts of enhanced tropical cyclone activity on the El Ni?o–Southern Oscillation and East Asian monsoon in the mid-Piacenzian warm period

论文摘要

热带气旋不仅是一种严重的灾害性天气事件,其在气候时间尺度也可通过加强海洋上层垂直混合进而调节全球海洋经向热量输送。基于一个海气耦合模式,本文探讨了强热带气旋活动对皮亚琴察暖期(又称晚上新世暖期;约300万年前)ENSO和东亚季风环流的可能影响。模拟结果表明,热带气旋引起的海洋垂直混合加强可造成热带东太平洋显著增温、温跃层加深,但ENSO年际变率减弱。对东亚季风而言,夏季副热带高压南移且西伸,副热带急流减弱并南移,我国南方西南风加强;冬季东亚大槽加深,副热带急流南移,我国北方偏北风加强。上述模拟结果可增进我们对热带气旋气候反馈作用以及晚上新世暖期全球气候特征的认识。

论文目录

• 1. Introduction
• 2. Methods
•   2.1 Model description
•   2.2 Experimental design
• 3. Results
•   3.1 Response of ENSO
•   3.2 Response of East Asian monsoon circulations
• 4. Conclusion and discussion

文章来源

类型: 期刊论文

作者: YAN Qing,ZHANG Zhongshi,ZHANG Ran

关键词: 皮亚琴察中期,气候模拟,热带气旋,厄尔尼诺南方涛动

来源: Atmospheric and Oceanic Science Letters 2019年01期

年度: 2019

分类: 基础科学

专业: 气象学

单位: Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences,Department of Atmospheric Science, School of Environmental Studies, China University of Geosciences,Bjerknes Center for Climate Research,Uni Research Climate,Climate Change Research Center, Chinese Academy of Sciences

基金: funded by the National Natural Science Foundation of China [grant number 41772179],the Young Elite Scientists Sponsorship Program by China Association for Science and Technology [grant number 2017QNRC001]

分类号: P429

页码: 1-11

总页数: 11

文件大小: 4873K

下载量: 40