Anthropogenic influence on Northern Hemisphere blocking during the winter 1960/1961–2012/2013
Anthropogenic influence on Northern Hemisphere blocking during the winter 1960/1961–2012/2013
复制标题
1960/1961 年至 2012/2013 年冬季北半球阻塞的人为影响
DOI:
10.1088/1748-9326/ac1d0e
复制
发表时间:
2021
影响因子:
6.7
通讯作者:
Guolin Feng
中科院分区:
文献类型:
--
作者:
Dong Chen;Shaobo Qiao;Xian Zhu;Ho-Nam Cheung;Nicolas Freychet;Xin Hao;Shankai Tang;Guolin Feng
Abstract. Atmospheric blocking (‘blocking’) in the Northern Hemisphere (NH) is a crucial driver of extreme cold spells in winter. Here we investigate the anthropogenic influence on the NH blocking and its impact on surface air temperature (SAT) during the winter 1960/1961–2012/2013 using two HadGEM3-GA6-N216 simulations with 15 ensemble members: (a) with anthropogenic and natural forcing (All-hist) and (b) with natural forcing only (Nat-hist). Compared to the Nat-hist run, the blocking frequency in the All-hist run decreases in the Euro-Atlantic, the Urals and the western Pacific, whereas it increases in the eastern Pacific and Greenland. These responses can be explained by the response of planetary waves and storm tracks. On the other hand, the decrease in SAT downstream of the blocking regions in the All-hist run is more pronounced than the Nat-hist run, especially in Europe and the Urals. Correspondingly, the proportion of cold days during all blocking days in these sectors is higher in the All-hist run than the Nat-hist run. These responses can be explained by the wind response associated with blocking. Overall, the spatiotemporal characteristics of blocking is crucial for evaluating the impact of blocking on extreme weather, and their response to anthropogenic forcing should be investigated by more models.
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影响因子:
2.9
作者:
Dong Chen;Shaobo Qiao;Shankai Tang;Ho Nam Cheung;Jieyu Liu;Guolin Feng
通讯作者:
Guolin Feng
影响因子:
5.2
作者:
G. Masato;T. Woollings;Brian J. Hoskins
通讯作者:
G. Masato;T. Woollings;Brian J. Hoskins
DOI:
10.1175/bams-d-17-0095.1
发表时间:
2018
期刊:
Bull. Amer. Meteor. Soc.
影响因子:
--
作者:
Cheng Qian;Jun Wang;Siyan Dong;Hong Yin;Claire Burke;Andrew Ciavarella;Buwen Dong;Nicolas Freychet;Fraser C Lott;Simon F. B. Tett
通讯作者:
Simon F. B. Tett
影响因子:
8.9
作者:
G. Masato;B. Hoskins;T. Woollings
通讯作者:
G. Masato;B. Hoskins;T. Woollings
DOI:
10.1002/joc.1250
发表时间:
2006-02
期刊:
International Journal of Climatology
影响因子:
--
作者:
S. Scherrer;M. Croci‐Maspoli;C. Schwierz;C. Appenzeller
通讯作者:
S. Scherrer;M. Croci‐Maspoli;C. Schwierz;C. Appenzeller