An Explosively Developing Extratropical Cyclone Associated with the High Wind-Waves along the East Coast of Korea SCIE SCOPUS

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Title
An Explosively Developing Extratropical Cyclone Associated with the High Wind-Waves along the East Coast of Korea
Author(s)
Heo, Ki-Young; Choi, Jin-Yong; Park, Kwang-Soon; Kwon, Jae-Il; Min, In-Ki; Ha, Taemin
KIOST Author(s)
Heo, Ki Young(허기영)Choi, Jin Yong(최진용)Kwon, Jae Il(권재일)Min, In Ki(민인기)
Publication Year
2018-05
Abstract
An extreme extratropical cyclone struck the northern part of Korea on May 3, 2016 causing significant damage to property on the land due to extreme winds and abnormal high waves in coastal area. The meteorological composite fields for the cyclone show a strong surface wind velocity (up to 45 m s(-1)) during its mature stage. This study investigated the development mechanisms of an explosive cyclone through numerical simulation and sensitivity experiments using the Advanced Research version of the Weather Research and Forecasting (WRF-ARW) model. The trigger mechanism for the explosive cyclogenesis is the strong baroclinic instability and temperature advection associated with upper-level cut-off low and the interaction of potential vorticity (PV) anomalies between the lower- and upper-level. The efficient placement of the high- and low-level jets forms a favorable environment for its development and transportation of water vapor and the instability energy into the cyclone. The sea-state wave simulation around the Korean Peninsula is obtained using the wave model WAVEWATCHIII (WW3) forced by the 10-m above ground level wind field from the WRF-ARW simulations. The significant wave height and peak wave direction were simulated and wave distribution was analyzed by comparing the removal of the upper-level PV with the doubled. The numerical results using the doubled upper-level PV reproduced well generation of high waves around the Korean Peninsula while not the removal of the upper-level PV.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/955
DOI
10.2112/SI85-144.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.716 - 720, 2018
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Subject
PART I; CYCLOGENESIS; INVERSION; SEA
Keywords
Extreme extratropical cyclone; explosive cyclogenesis; abnormal high waves
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Related Researcher
Research Interests

Operational Oceanography,Numerical Modeling,운용해양,수치모델링

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