파랑후측에서 나타난 동해 유의파고의 선형추세 KCI

Title
파랑후측에서 나타난 동해 유의파고의 선형추세
Alternative Title
Linear trend of significant wave height in the East Sea inferred from wave hindcast
Author(s)
김기호; 장찬주; 도기덕; 정희석; 유제선
KIOST Author(s)
Jang, Chan Joo(장찬주)Jung, Heeseok(정희석)Yoo, Jeseon(유제선)
Publication Year
2019-10
Abstract
Extreme significant wave height (SWH) influences the coastal environment such as coastal erosion and damage to coastal structures. In this study, to investigate a long-term trend of SWH in the East Sea, a wave hindcast experiment for the East Sea was conducted by using the SWAN wave model forced with ECMWF reanalysis wind data during 40 years (1979~2018). Trends of SWH in the East Sea appear to significantly change spatially. For example, in August when typhoons pass most frequently through the East Sea, the monthly-mean SWH shows an increasing trend in the southern basin, while the SWH shows a decreasing trend in northern basin. The 99th percentile shows a different spatial pattern in the trend: an increase in the northwestern area and a decrease in the southeastern area. On the other hand, in December when strong northwesterly winds are dominant, both monthly-mean and 99th percentile SWH show an increasing trend in most of the East Sea. Especially, there is a noticeable increasing trend in the southeastern East Sea. Our results suggest that the long-term trends of the SWH in the East Sea significantly vary depending on seasons and locations.
ISSN
2288-7903
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/486
DOI
10.20481/kscdp.2019.6.4.127
Bibliographic Citation
한국연안방재학회지, v.6, no.4, pp.127 - 137, 2019
Publisher
(사)한국연안방재학회
Keywords
significant wave height; linear trend; wave hindcast; wind speed; East Sea
Type
Article
Language
Korean
Publisher
(사)한국연안방재학회
Related Researcher
Research Interests

Coastal disaster,Coastal numerical modeling,Coastal remote sensing,연안재해,수치모델링,연안 원격탐사

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