Impacts of central Pacific and eastern Pacific El Niños on tropical cyclone tracks over the western North Pacific

2011 ◽  
Vol 38 (16) ◽  
pp. n/a-n/a ◽  
Author(s):  
Chi-Cherng Hong ◽  
Yuan-Hsing Li ◽  
Tim Li ◽  
Ming-Ying Lee
Keyword(s):  
Tropical Cyclone ◽  
North Pacific ◽  
Western North Pacific ◽  
Eastern Pacific ◽  
Central Pacific ◽  
Cyclone Tracks ◽  
Tropical Cyclone Tracks

scholarly journals Role of climate variability in the potential predictability of tropical cyclone formation in tropical and subtropical western North Pacific Ocean

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Yu-Lin K. Chang ◽  
Yasumasa Miyazawa ◽  
Swadhin Behera
Keyword(s):  
Tropical Cyclone ◽  
North Pacific ◽  
Western North Pacific ◽  
Southern Oscillation ◽  
North Pacific Ocean ◽  
Eastern Pacific ◽  
Central Pacific ◽  
Potential Predictability ◽  
Vorticity Anomaly ◽  
Tropical Western North Pacific

AbstractThe out of phase tropical cyclone (TC) formation in the subtropical and tropical western North Pacific associated with local low-level wind vorticity anomaly, driven by the remote central and eastern equatorial Pacific warming/cooling, is investigated based on the reanalysis and observational data in the period of 1979−2017. TC frequencies in the subtropical and tropical western North Pacific appear to be connected to different remote heating/cooling sources and are linked to eastern and central Pacific warming/cooling, which are in turn related to canonical El Niño/Southern Oscillation (ENSO) and ENSO Modoki, respectively. TCs formed in subtropics (SfTC) are generally found to be associated with a dipole in wind vorticity anomaly, which is driven by the tropical eastern Pacific warming/cooling. Tropically formed TCs (TfTC) are seen to be triggered by the single-core of wind vorticity anomaly locally associated with the warming/cooling of central and eastern Pacific. The predicted ENSOs and ENSO Modokis, therefore, provide a potential source of seasonal predictability for SfTC and TfTC frequencies.

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