Wave-tide-surge coupled simulation for typhoon Maemi SCIE SCOPUS

Cited 18 time in WEB OF SCIENCE Cited 24 time in Scopus
Title
Wave-tide-surge coupled simulation for typhoon Maemi
Author(s)
Choi, Byung Ho; Min, Byung Il; Kim, Kyeong Ok; Yuk, Jin Hee
KIOST Author(s)
Kim, Kyeong Ok(김경옥)
Publication Year
2013-04
Abstract
The main task of this study focuses on studying the effect of wave-current interaction on currents, storm surge and wind wave as well as effects of current induced wave refraction and current on waves by using numerical models which consider the bottom boundary layer and sea surface roughness parameter for shallow and smooth bed area around Korean Peninsula. The coupled system (unstructured-mesh SWAN wave and ADCIRC) run on the same unstructured mesh. This identical and homogeneous mesh allows the physics of wave-circulation interactions to be correctly resolved in both models. The unstructured mesh can be applied to a large domain allowing all energy from deep to shallow waters to be seamlessly followed. There is no nesting or overlapping of structured wave meshes, and no interpolation is required. In response to typhoon Maemi (2003), all model components were validated independently, and shown to provide a faithful representation of the system's response to this storm. The waves and storm surge were allowed to develop on the continental shelf and interact with the complex nearshore environment. The resulting modeling system can be used extensively for prediction of the typhoon surge. The result show that it is important to incorporate the wave-current interaction effect into coastal area in the wave-tide-surge coupled model. At the same time, it should consider effects of depth-induced wave breaking, wind field, currents and sea surface elevation in prediction of waves. Specially, we found that: (1) wave radiation stress enhanced the current and surge elevation otherwise wave enhanced nonlinear bottom boundary layer decreased that, (2) wind wave was significantly controlled by sea surface roughness thus we cautiously took the experimental expression. The resulting modeling system can be used for hindcasting (prediction) the wave-tide-surge coupled environments at complex coastline, shallow water and fine sediment area like areas around Korean Peninsula.
ISSN
0890-5487
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3204
DOI
10.1007/s13344-013-0013-0
Bibliographic Citation
CHINA OCEAN ENGINEERING, v.27, no.2, pp.141 - 158, 2013
Publisher
CHINA OCEAN PRESS
Subject
RADIATION STRESSES; WIND STRESS; MODEL
Keywords
typhoon Maemi; finite element model; tide-surge-wave coupling
Type
Article
Language
English
Document Type
Article
Publisher
CHINA OCEAN PRESS
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