Influence of Indian Ocean Dipole on Tropical Cyclone Activity over Western North Pacific in Boreal Autumn

2019 ◽  
Vol 18 (4) ◽  
pp. 795-802 ◽  
Author(s):  
Qun Zhou ◽  
Lixin Wei ◽  
Runyu Zhang
Keyword(s):  
Tropical Cyclone ◽  
Indian Ocean ◽  
North Pacific ◽  
Indian Ocean Dipole ◽  
Western North Pacific ◽  
Tropical Cyclone Activity ◽  
Cyclone Activity

scholarly journals Change in Tropical Cyclone Activity during the Break of the Western North Pacific Summer Monsoon in Early August

2016 ◽  
Vol 29 (7) ◽  
pp. 2457-2469 ◽  
Author(s):  
Ke Xu ◽  
Riyu Lu
Keyword(s):  
Tropical Cyclone ◽  
Summer Monsoon ◽  
North Pacific ◽  
Western North Pacific ◽  
Cyclonic Circulation ◽  
Tropical Cyclone Activity ◽  
Upward Motion ◽  
Mariana Islands ◽  
Cyclone Activity

Abstract The modulation of tropical cyclone (TC) activity by the western North Pacific (WNP) monsoon break is investigated by analyzing the subseasonal evolution of TCs and corresponding circulations, based on 65 years of data from 1950 to 2014. The monsoon break has been identified as occurring over the WNP in early August. The present results show that TC occurrence decreases (increases) remarkably to the east of the Mariana Islands (southeast of Japan) during the monsoon break, which is closely related to local anomalous midtropospheric downward (upward) motion and lower-tropospheric anticyclonic (cyclonic) circulation, in comparison with the previous and subsequent convective periods in late July and mid-August. These changes of TC activity and the corresponding circulation during the monsoon break are more significant in typical monsoon break years when the monsoon break phenomenon is predominant. The reverse changes of TC activity to the east of the Mariana Islands and to the southeast of Japan during the monsoon break are closely associated with the out-of-phase subseasonal evolutions over these two regions from late July to mid-August, which are both contributed to greatly by 10–25-day oscillations. Finally, the roles of midlatitude and tropical disturbances on 10–25-day oscillations are also discussed.

Influence of the QBO on tropical convection and its impact on tropical cyclone activity over the western North Pacific

2021 ◽  
Author(s):  
Jingliang Huangfu ◽  
Yulian Tang ◽  
Tianjiao Ma ◽  
Wen Chen ◽  
Lin Wang
Keyword(s):  
Tropical Cyclone ◽  
North Pacific ◽  
Western North Pacific ◽  
Tropical Cyclone Activity ◽  
Tropical Convection ◽  
Cyclone Activity

Significant Aerosol Influence on the Recent Decadal Decrease in Tropical Cyclone Activity Over the Western North Pacific

2017 ◽  
Vol 44 (18) ◽  
pp. 9496-9504 ◽  
Author(s):  
Chiharu Takahashi ◽  
Masahiro Watanabe ◽  
Masato Mori
Keyword(s):  
Tropical Cyclone ◽  
North Pacific ◽  
Western North Pacific ◽  
Tropical Cyclone Activity ◽  
Cyclone Activity

scholarly journals Possible effect of North Pacific Oscillation on Summer Tropical Cyclone Activity over the Western North Pacific

2015 ◽  
Vol 24 (3) ◽  
pp. 339-352
Author(s):  
Ki-Seon Choi ◽  
Kyungmi Lee ◽  
Jeoung-Yun Kim ◽  
Cheol-Hong Park
Keyword(s):  
Tropical Cyclone ◽  
North Pacific ◽  
Western North Pacific ◽  
Tropical Cyclone Activity ◽  
North Pacific Oscillation ◽  
Cyclone Activity
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