HR: 0800h
AN: OS51A-02    [Abstracts]
TI: Numerical Simulation of Storm surges/Wave using KMA Operational Ocean Model
AU: * You, S
EM: shyou@metri.re.kr
AF: METRI/KMA, 460-18 Shindaebang-2dong Dongjak-gu, Seoul, 156-720, Korea, Republic of
AU: Park, S
EM: swpark@kma.go.kr
AF: METRI/KMA, 460-18 Shindaebang-2dong Dongjak-gu, Seoul, 156-720, Korea, Republic of
AU: Seo, J
EM: jwseo@metri.re.kr
AF: METRI/KMA, 460-18 Shindaebang-2dong Dongjak-gu, Seoul, 156-720, Korea, Republic of
AU: Cho, J
EM: jgcho@metri.re.kr
AF: METRI/KMA, 460-18 Shindaebang-2dong Dongjak-gu, Seoul, 156-720, Korea, Republic of
AB: The Korea Meteorological Administration (KMA) has operated numerical ocean wave prediction system since 1992. Prior June 1999, the 1st generation wave model (DSA-5) was operated twice in daily over the Northeast Asia region. With introduction of NEC SX5 supercomputer in 1999, the 3rd generation wave model (WAM) was implemented with two wave prediction systems ¡V the ReWAM (Regional WAve Model) and the GoWAM (Global WAve Model). At present, KMA (Korea Meteorological Administration) has operated the wave model and storm surge model based on CRAY X1E system. The study shows development and verification of operational ocean model and future plan of KMA. The operational storm surge model (STOM : Storm surge/Tide Operational Model) area covers 115¢X-150¢XE, 20¢X-52¢XN based on POM (Princeton Ocean Model) (Blumberg and Mellor, 1987) with 1/12¢X horizontal resolutions including the Yellow Sea, East China Sea and the East Sea, marginal seas around Korea. From July, 2006 the STOM have been applied to formal forecasting model in KMA. Sea surface wind and pressure from the Regional Data Assimilation and Prediction System (RDAPS) is used for forcing input of storm surge model. In this model, the level of storm surge calculated by the difference between tide level and sea level change caused by meteorological effects. The newly developed operational wave model is WAVEWATCH III which is a third generation wave model developed by Tolman (1989). The Regional WAVEWATCH III (RWW3) covers the northwestern Pacific Ocean from 115„aE to 150„aE and from 20„aN to 50„aN similar to STOM. The horizontal grid intervals are 1/12„a in both latitudinal and longitudinal directions. The RWW3 is integrated from a state of rest and forced by the RDAPS wind stress produced by KMA. From 2007, the RWW3 will be applied to formal forecasting model in KMA. The Coastal WAVEWATCH III (CWW3) covers 6 coastal areas around Korea peninsular. The horizontal grid intervals are 1/120„a for each area. Under the renewal process of power computing packs at KMA on the year 2005, the CRAY X1E system (14.5 Teraflops) replaced NEC SX5 (224 Gigaflops). Establishing of newly devised ocean prediction system is underway in conjunction with high computing environment. The main focus of new wave system lies in accommodating coastal wave/surge processes. The west and the south coastal area of Korean peninsular is one of the challenging places in ocean modeling for reasonable prediction of nearshore wave conditions and tides.
DE: 1222 Ocean monitoring with geodetic techniques (1225, 1641, 3010, 4532, 4556, 4560, 6959)
DE: 4560 Surface waves and tides (1222)
SC: Ocean Sciences [OS]
MN: 2007 Joint Assembly