CMIP6模式对东亚夏季西风急流的模拟能力改进分析(英文)
发布时间:2022-08-10 14:39
东亚高空西风急流(简称急流)对东亚夏季降水有着重要影响,因此,评估气候系统模式对急流的模拟能力对理解东亚气候变化至关重要。本文利用21个CMIP6气候系统模式历史气候模拟试验数据,结合NCEP和GPCP再分析资料,评估了CMIP6模式对现代(1986-2005年)急流气候态和年际变率的模拟能力,并与CMIP5模式模拟结果进行了对比。结果表明,CMIP6模式模拟的200 hPa纬向风的空间分布特征更加真实,沿急流方向的偏差更小。在CMIP6模式中,急流中心位置几乎与观测一致,但只有约三分之二的CMIP5模式能模拟出急流中心位置。CMIP6模式模拟的急流强度也更接近于观测值,并且模式间不确定性减小。另外,CMIP6模式也改进了对急流经向位移年际变率的模拟能力,因而模拟的急流与东亚夏季降水的相关关系更强。总体而言,相对于CMIP5模式,CMIP6模式明显改进了对急流的模拟效果。
【文章页数】:9 页
【文章目录】:
1. Introduction
2. Data and methods
3. Results
3.1 Simulation of the zonal wind at 200 h Pa over East Asia
3.2 Simulation of the location and intensity of the EAJ
3.3 Simulation of the interannual variability in the EAJ and relation to the EASR
4. Conclusions
Disclosure Statement
【参考文献】:
期刊论文
[1]Projection of the East Asian westerly jet under six global warming targets[J]. FU Yuanhai,GUO Dong. Atmospheric and Oceanic Science Letters. 2020(02)
[2]Intermodel Diversity in the Zonal Location of the Climatological East Asian Westerly Jet Core in Summer and Association with Rainfall over East Asia in CMIP5 Models[J]. Zhongda LIN,Yuanhai FU,Riyu LU. Advances in Atmospheric Sciences. 2019(06)
[3]FGOALS模式对梅雨期东亚副热带西风急流变化特征的模拟[J]. 杜银,包庆,谢志清. 大气科学. 2017(03)
[4]Anomalous Midsummer Rainfall in Yangtze River-Huaihe River Valleys and Its Association with the East Asia Westerly Jet[J]. 宣守丽,张庆云,孙淑清. Advances in Atmospheric Sciences. 2011(02)
本文编号:3673820
【文章页数】:9 页
【文章目录】:
1. Introduction
2. Data and methods
3. Results
3.1 Simulation of the zonal wind at 200 h Pa over East Asia
3.2 Simulation of the location and intensity of the EAJ
3.3 Simulation of the interannual variability in the EAJ and relation to the EASR
4. Conclusions
Disclosure Statement
【参考文献】:
期刊论文
[1]Projection of the East Asian westerly jet under six global warming targets[J]. FU Yuanhai,GUO Dong. Atmospheric and Oceanic Science Letters. 2020(02)
[2]Intermodel Diversity in the Zonal Location of the Climatological East Asian Westerly Jet Core in Summer and Association with Rainfall over East Asia in CMIP5 Models[J]. Zhongda LIN,Yuanhai FU,Riyu LU. Advances in Atmospheric Sciences. 2019(06)
[3]FGOALS模式对梅雨期东亚副热带西风急流变化特征的模拟[J]. 杜银,包庆,谢志清. 大气科学. 2017(03)
[4]Anomalous Midsummer Rainfall in Yangtze River-Huaihe River Valleys and Its Association with the East Asia Westerly Jet[J]. 宣守丽,张庆云,孙淑清. Advances in Atmospheric Sciences. 2011(02)
本文编号:3673820
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