| JUN Ki Cheon,JEONG Weon Mu,CHOI Jin Yong,PARK Kwang Soon,JUNG Kyung Tae,KIM Mee Kyung,CHAE Jang Won,QIAO Fangli. 2015. Simulation of the extreme waves generated by typhoon Bolaven (1215) in the East China Sea and Yellow Sea. Acta Oceanologica Sinica, 34(12):19－28 |
| Simulation of the extreme waves generated by typhoon Bolaven (1215) in the East China Sea and Yellow Sea |
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| Received:July 20, 2015 Revised:September 21, 2015 |
| DOI：10.1007/s13131-015-0779-4 |
| Key words:extreme waves typhoon measurements numerical simulation East China Sea |
| 中文关键词: |
| 基金项目:The Ministry of Oceans and Fisheries of Korea -"The Research and Development on Coastal Hydraulic Investigation of Busan New Port" and "Cooperative Project on Korea-China Bilateral Committee on Ocean Science"; the Korea Institute of Ocean Science and Technology (KIOST) Project under contract No. PE99325; the China-Korea Joint Ocean Research Center (CKJORC)-"Cooperation on the Development of Basic Technologies for the Yellow Sea and East China Sea Operational Oceanographic System (YOOS)"; both the Nuclear Safety Project of CKJORC and Major Project of KIOST under contract No. PE99304. |
| Author Name | Affiliation | E-mail | | JUN Ki Cheon | Coastal Disaster Research Center, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea | | | JEONG Weon Mu | Coastal & Environmental Engineering Division, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea | | | CHOI Jin Yong | Coastal Disaster Research Center, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea | | | PARK Kwang Soon | Coastal Disaster Research Center, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea | | | JUNG Kyung Tae | Marine Radionuclide Research Center, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea | | | KIM Mee Kyung | Coastal & Environmental Engineering Division, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea | | | CHAE Jang Won | Coastal & Environmental Engineering Division, Korea Institute of Ocean Science and Technology, Ansan 426-744, Republic of Korea | jwchae@kiost.ac.kr | | QIAO Fangli | First Institute of Oceanography, State Oceanic Administration, Qindao 266061, China | |
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| Abstract: |
| Record-breaking high waves occurred during the passage of the typhoon Bolaven (1215) (TYB) in the East China Sea (ECS) and Yellow Sea (YS) although its intensity did not reach the level of a super typhoon. Winds and directional wave measurements were made using a range of in-situ instruments mounted on an ocean tower and buoys. In order to understand how such high waves with long duration occurred, analyses have been made through measurement and numerical simulations. TYB winds were generated using the TC96 typhoon wind model with the best track data calibrated with the measurements. And then the wind fields were blended with the reanalyzed synoptic-scale wind fields for a wave model. Wave fields were simulated using WAM4.5 with adjustment of Cd for gust of winds and bottom friction for the study area. Thus the accuracy of simulations is considerably enhanced, and the computed results are also in better agreement with measured data than before. It is found that the extremely high waves evolved as a result of the superposition of distant large swells and high wind seas generated by strong winds from the front/right quadrant of the typhoon track. As the typhoon moved at a speed a little slower than the dominant wave group velocity in a consistent direction for two days, the wave growth was significantly enhanced by strong wind input in an extended fetch and non-linear interaction. |
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