scholarly journals Contrast in the East Asian subtropical westerly jet and its association with precipitation in China between early summer and midsummer

2017 ◽  
Vol 25 (1) ◽  
pp. 119-127 ◽  
Author(s):  
Shouli Xuan ◽  
Qingyun Zhang ◽  
Shuqing Sun ◽  
Chunlin Shi
Keyword(s):  
East Asian ◽  
Early Summer ◽  
Westerly Jet ◽  
Subtropical Westerly Jet

scholarly journals Analysis of the East Asian Subtropical Westerly Jet Simulated by CCSR/NIES/FRCGC Coupled Climate System Model

2008 ◽  
Vol 86 (2) ◽  
pp. 257-278 ◽  
Author(s):  
Yaocun ZHANG ◽  
Masaaki TAKAHASHI ◽  
Lanli GUO
Keyword(s):  
East Asian ◽  
Climate System ◽  
System Model ◽  
Climate System Model ◽  
Westerly Jet ◽  
Subtropical Westerly Jet

An assessment of the predictability of the East Asian Subtropical Westerly Jet based on TIGGE data

2015 ◽  
Vol 32 (3) ◽  
pp. 401-412 ◽  
Author(s):  
Baiquan Zhou ◽  
Ruoyun Niu ◽  
Panmao Zhai
Keyword(s):  
East Asian ◽  
Westerly Jet ◽  
Subtropical Westerly Jet

scholarly journals Potential Influence of Arctic Sea Ice to the Interannual Variations of East Asian Spring Precipitation*

2016 ◽  
Vol 29 (8) ◽  
pp. 2797-2813 ◽  
Author(s):  
Zhiwei Wu ◽  
Xinxin Li ◽  
Yanjie Li ◽  
Yun Li
Keyword(s):  
Sea Ice ◽  
East Asia ◽  
Wave Train ◽  
East Asian ◽  
Arctic Sea Ice ◽  
Interannual Variations ◽  
Spring Precipitation ◽  
Westerly Jet ◽  
Arctic Sea ◽  
Subtropical Westerly Jet

Abstract Arctic sea ice (ASI) and its potential climatic impacts have received increasing attention during the past decades, yet the relevant mechanisms are far from being understood, particularly how anomalous ASI affects climate in midlatitudes. The spring precipitation takes up as much as 30% of the annual total and significantly influences agriculture in East Asia. Here, observed evidence and numerical experiment results show that the ASI variability in the Norwegian Sea and the Barents Sea in the preceding winter is intimately connected with interannual variations of the East Asian spring precipitation (EAP). The former can explain about 14% of the total variance of the latter. The ASI anomalies persist from winter through the ensuing spring and excite downstream teleconnections of a distinct Rossby wave train prevailing over the Eurasian continent. For the reduced ASI, such a wave train pattern is usually associated with an anomalous low pressure center over the Mongolian plateau, which accelerates the East Asian subtropical westerly jet. The intensified subtropical westerly jet, concurrent with lower-level convergence and upper-level divergence, enhances the local convection and consequently favors rich spring precipitation over East Asia. For the excessive ASI, the situation tends to be opposite. Given that seasonal prediction of the EAP remains a challenging issue, the winter ASI variability may provide another potential predictability source besides El Niño–Southern Oscillation.

scholarly journals Effects of the East Asian Subtropical Westerly Jet on Winter Persistent Heavy Pollution in the Beijing‐Tianjin‐Hebei Region

2021 ◽  
Author(s):  
Mei Mei ◽  
Yihui Ding ◽  
Zunya Wang ◽  
Yanju Liu ◽  
Yingxian Zhang
Keyword(s):  
East Asian ◽  
Westerly Jet ◽  
Heavy Pollution ◽  
Subtropical Westerly Jet

Effects of the Tibetan Plateau on East Asian Summer Monsoon via Weakened Transient Eddies

2020 ◽  
Author(s):  
Qiaoling Ren ◽  
Song Yang ◽  
Xinwen Jiang ◽  
Yang Zhang ◽  
Zhenning Li
Keyword(s):  
East Asia ◽  
Summer Monsoon ◽  
East Asian Summer Monsoon ◽  
Asian Summer Monsoon ◽  
East Asian ◽  
Early Summer ◽  
The Tibetan Plateau ◽  
Rain Belt ◽  
Westerly Jet ◽  
Asian Summer

<p>Previous studies have revealed that the Tibetan Plateau (TP) can weaken the high-frequency and low-frequency transient eddies (TE) transported along the westerly jet. Here the effects of TP on East Asian summer monsoon via weakened TE are investigated based on the simulations by the NCAR Community Earth System Model, in which a nudging method is used to amplify the TP’s inhibition of TE without changing the steady dynamic and thermodynamic effects of TP. Results reveal that the weakened TE by TP weaken the East Asian westerly jet (EAWJ) and shift the jet southward via transient vorticity flux. The southward EAWJ accompanied with reduced poleward transport of moisture by TE results in less rainfall in northern East Asia but more rainfall in southern East Asia, particularly in early summer when the EAWJ is stably located over the TP and the meridional gradient of water vapor is large. Furthermore, the anomalous precipitation can move the EAWJ further southward through the anomalous diabatic heating in early summer, forming a positive feedback. Therefore, the TP’s inhibition of TE can shift the East Asian rain belt southward, different from the TP’s steady forcing which favors a poleward shift of the rain belt. It is also demonstrated that the atmospheric internal variability can lead to the south-flood-north-drought pattern of summer rainfall change over East Asia, indicating the important role of TE in East Asian summer monsoon.</p>

Simulation of the East Asian Subtropical Westerly Jet Stream with GFDL AGCM (AM2.1)

2011 ◽  
Vol 4 (1) ◽  
pp. 24-29 ◽  
Author(s):  
Huang Gang ◽  
Liu Yong
Keyword(s):  
East Asian ◽  
Jet Stream ◽  
Westerly Jet ◽  
Subtropical Westerly Jet

Simulations of the East Asian subtropical westerly jet by LASG/IAP AGCMs

2008 ◽  
Vol 25 (3) ◽  
pp. 447-457 ◽  
Author(s):  
Lanli Guo ◽  
Yaocun Zhang ◽  
Bin Wang ◽  
Lijuan Li ◽  
Tianjun Zhou ◽  
...  
Keyword(s):  
East Asian ◽  
Westerly Jet ◽  
Subtropical Westerly Jet
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