EGU22-6808
https://doi.org/10.5194/egusphere-egu22-6808
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Abnormal Activities of Tropical Cyclones in 2019 Over theKorean Peninsula

Mincheol Moon1,2 and Kyung-Ja Ha1,2,3
Mincheol Moon and Kyung-Ja Ha
  • 1Center for Climate Physics, Institute for Basic Science, Busan, South Korea
  • 2Department of Climate System, Pusan National University, Busan, South Korea
  • 3BK21 School of Earth and Environmental Systems, Pusan National University, Busan, South Korea

Approximately, 25.6 tropical cyclones (TCs) occur in the western North Pacific (WNP) each year, of which 3.4 TCs affect the Korean Peninsula (KP). In 2019, a record of seven TCs affected the KP. We investigated and elucidated the favorable conditions influencing the TCs approaching the KP using the Weather Research and Forecasting model version 4.0 (WRFv4). The cold Maritime Continent-warm WNP sea surface temperature (SST) was found to be a major factor. The effect of the SST gradient was examined for one representative case using WRFv4 with varying SST anomalies. This study suggests that the SST gradient-induced change in the circulation over the Maritime Continent is a main factor causing the TCs to approach the KP.

How to cite: Moon, M. and Ha, K.-J.: Abnormal Activities of Tropical Cyclones in 2019 Over theKorean Peninsula, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-6808, https://doi.org/10.5194/egusphere-egu22-6808, 2022.

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