China
Africa
Explore chapters and articles related to this topic
Asian Monsoon
Published in Yeqiao Wang, Atmosphere and Climate, 2020
The rain occurs in a concentrated belt that stretches east-west over China and tilts east-northeast over Korea and Japan. Such seasonal rain is known as Meiyu in China, Changma in Korea, and Bai-u in Japan. Different from the South Asia monsoon, the East Asian winter monsoon is stronger than the summer monsoon. It originates from the cold and dry continent air-mass of the Siberian high pressure system with dominant northwest or northeast flows. The East Asian winter monsoon is often accompanied by cold ocean waves, snow, and strong wind. Figure 6.1 presents the long-term mean precipitation (mm/day) and wind (m/s at 850 hPa) in monsoon Asia region in January and July.[1,2-
A possible way to extract a stationary relationship between ENSO and the East Asian winter monsoon
Published in Atmospheric and Oceanic Science Letters, 2020
Genchang FAN, Feng LV, Jinglong ZHANG, Jiao FU
The East Asian winter monsoon (EAWM) is an important atmospheric climate system of the global climate system. An anomalous EAWM can lead to excessive damage and large economic losses in both China and adjacent countries (Wu and Wang 2002; Wang, Yu, and Yang 2011; Li and Wang 2012, 2013). In boreal winter, the northwesterly wind along the eastern flank of the Siberian high is dry and cold, and stronger-than-normal northwesterly wind often brings extreme cold surges and severe snowfall events to East Asia (Boyle and Chen 1987; Chang, Wang, and Hendon 2006; Liu et al. 2012). Besides the winter climate, the EAWM also has a potential relationship with the summer climate over East Asia. For example, statistical analyses have revealed that a stronger-than-normal EAWM in boreal winter implies a generally stronger-than-normal East Asian summer monsoon in the following boreal summer (Chen, Yang, and Huang 2005; Yan et al. 2011). Therefore, it is important to improve our understanding of, and ability to predict, EAWM anomalies.
Subseasonal mode of cold and wet climate in South China during the cold season: a climatological view
Published in Atmospheric and Oceanic Science Letters, 2019
Minjie YU, Congwen ZHU, Ning JIANG
The intraseasonal oscillation (ISO) of the East Asian winter monsoon (EAWM) can alter the seasonal evolution of surface air temperature (SAT) and rainfall, and cause cold and wet extreme events in China during the cold season (from November to March). For instance, unexpected extreme cold spells with snowstorms attacked South China (SC) during January 2008, causing severe icing conditions and catastrophic damage for the local economy and society (Wen, Yang, and Kumar et al. 2009; Hong and Li 2009; Zhou et al. 2009; Shi, Xu, and Lu 2010). During January 2016, unexpected cold spells with low SAT repeatedly affected East Asia and, during 21–25 2016, broke the record in SC since observations began in 1961 (Cheung et al. 2016; Ma et al. 2018). Evidence shows that cold and wet events are mainly caused by an enhanced EAWM, with an intensified Siberian high in terms of sea level pressure (SLP) and East Asian trough (EAT) at 500 hPa, as well as a southward shift of the East Asian jet stream at 200 hPa (Boyle and Chen 1987; Chen, Graf, and Huang 2000; Wen et al. 2009; Song et al. 2015; Ma et al. 2018).