Possible Role of Hadley Circulation Strengthening in Interdecadal Intensification of Snowfalls Over Northeastern China Under Climate Change
Possible Role of Hadley Circulation Strengthening in Interdecadal Intensification of Snowfalls Over Northeastern China Under Climate Change
复制标题
气候变化下哈德来环流增强对中国东北地区降雪年代际强化的可能作用
DOI:
10.1002/2017jd027574
复制
发表时间:
2017-11
影响因子:
4.4
通讯作者:
Shi Ying
中科院分区:
文献类型:
--
作者:
Zhou Botao;Wang Zunya;Shi Ying
This article revealed that strengthening of winter Hadley circulation in the context of climate change may partially contribute to interdecadal increasing of snowfall intensity over northeastern China in recent decades. This hypothesis is well supported by the process‐based linkage between Hadley circulation and atmospheric circulations over the Asian‐Pacific region on the interdecadal time scale. The strengthening of winter Hadley circulation corresponds to a weakening of the Siberian high, an eastward shifting of the Aleutian low, a reduction of the East Asian trough, and anomalous southwesterly prevailing over northeastern China. These atmospheric situations weaken the East Asian winter monsoon and lead to an increase of air temperature over northeastern China. Increased local evaporation due to the increase of air temperature, concurrent with more water vapor transported from the Pacific Ocean, can significantly enhance atmospheric water vapor content in the target region. Meanwhile, the ascending of airflows is also strengthened over northeastern China. All of these provide favorable interdecadal backgrounds for the occurrence of intense snowfalls, and thus, snowfall intensity is intensified over northeastern China after the 1980s. Further analysis suggests that the circum‐Pacific‐like teleconnection pattern may play an important role in connecting Hadley circulation strengthening signal and atmospheric circulation anomalies favoring interdecadal intensification of snowfalls over northeastern China.
登录
查看更多内容
影响因子:
--
作者:
Xu Xiangde
通讯作者:
Xu Xiangde
DOI:
--
发表时间:
2012
期刊:
Meteorological Monthly
影响因子:
--
作者:
L. Duo
通讯作者:
L. Duo
DOI:
10.1002/joc.2400
发表时间:
2012-11
期刊:
International Journal of Climatology
影响因子:
--
作者:
Liu Na, Liu Jiping, Zhang Zhanhai
通讯作者:
Liu Na, Liu Jiping, Zhang Zhanhai
影响因子:
--
作者:
Wang HuiJun;He ShengPing
通讯作者:
He ShengPing
影响因子:
--
作者:
Sun Jianqi;Wang Huijun;Yuan Wei;Chen Huopo
通讯作者:
Chen Huopo