A Dynamical Index for the East Asian Winter Monsoon
Yueqing Li,Song Yang +1 more
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TLDR
In this article, a new index measuring the East Asian winter monsoon is defined using the mean wind shears of upper-tropospheric zonal wind based on the belief that the physical processes of both higher and lower latitudes, and at both lower and upper troposphere, should be considered to depict the variability of monsoon.Abstract:
A new index measuring the East Asian winter monsoon is defined using the mean wind shears of upper-tropospheric zonal wind based on the belief that the physical processes of both higher and lower latitudes, and at both lower and upper troposphere, should be considered to depict the variability of monsoon. When the index is high (low), the westerly jet is strong (weak), the East Asian trough is deep (shallow), the Siberian high is strong (weak), and anomalous low-level northerlies (southerlies) prevail over East Asia. As a result, the surface and lower-tropospheric temperature over East Asia decreases (increases) and the cold surges over Southeast Asia and tropical western Pacific are more (less) active. The index, which exhibits distinct interannual variations, is also strongly correlated with the Arctic Oscillation and Nino-3.4 sea surface temperature (SST) index. Compared to previous indexes, this index takes into account more influencing factors and better elucidates the physical processes ass...read more
Citations
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Characteristics, processes, and causes of the spatio-temporal variabilities of the East Asian monsoon system
TL;DR: In this article, the authors reviewed recent advances in the study of the characteristics, processes, and causes of spatio-temporal variabilities of the East Asian monsoon (EAM) system.
Journal ArticleDOI
Relationship between the Arctic Oscillation and Cold Surges over East Asia
TL;DR: In this article, the authors reveal the changes in the characteristics of cold surges over East Asia associated with the Arctic Oscillation (AO), based on circulation features, cold surges are grouped into two general types: wave train and blocking types.
Journal ArticleDOI
An Intensity Index for the East Asian Winter Monsoon
TL;DR: In this article, a new sea level pressure (SLP) index measuring the intensity of the East Asian winter monsoon (EAWM) is proposed by explicitly taking into account both the east-west and the north-south pressure gradients around East Asia.
Journal ArticleDOI
Impacts of Different Types of El Niño on the East Asian Climate: Focus on ENSO Cycles
Yuan Yuan,Song Yang +1 more
TL;DR: In this article, the authors analyzed the different impacts of eastern Pacific (EP) and central Pacific (CP) El Nino on East Asian climate, focusing on the features from El-Nino developing summer to ElNino decaying summer.
Journal ArticleDOI
Arctic sea ice, Eurasia snow, and extreme winter haze in China
TL;DR: The East China Plains (ECP) region experienced the worst haze pollution on record for January in 2013 as discussed by the authors, which was due to extremely poor ventilation conditions, which had not been seen in the preceding three decades.
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