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Effect of ENSO on landfalling tropical cyclones over the Korean peninsula |
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| Authors: | Ki-Seon Choi Chun-Chieh Wu Yuqing Wang |
| Institution: | 1. National Typhoon Center, Korea Meteorological Administration, Jeju, Korea 2. Department of Atmospheric Sciences, National Taiwan University, Taipei, 106, Taiwan 3. International Pacific Research Center and Department of Meteorology, University of Hawaii at Manoa, Honolulu, Hawaii, USA |
| Abstract: | The effect of ENSO on landfalling tropical cyclones (TCs) over the Korean Peninsula is examined. It is found that although the landfalling frequency does not show any statistically significant difference among ENSO phases, the landfalling tracks are shifted northward in response to the decrease in Niño-3.4 index. In the neutral ENSO phase, many TCs pass through mainland China before landfalling over the Korean Peninsula due to the westward expansion of the western North Pacific subtropical high. Therefore, the landfalling TC intensity over the Korean Peninsula in the neutral phase is similar to that in the La Niña phase because more than half of those TCs made landfall over mainland China. However, it is found that the preceding winter ENSO phases are not related to the landfalling TC activity over the Korean Peninsula during summer. |
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