고해상도 파랑후측에서 나타난 동해 파랑기후의 40년 선형추세 KCI

Title
고해상도 파랑후측에서 나타난 동해 파랑기후의 40년 선형추세
Alternative Title
Linear trend in the wave climate of the East Sea estimated from a 40-year high-resolution wave hindcast
Author(s)
김기호; 장찬주
KIOST Author(s)
Jang, Chan Joo(장찬주)
Publication Year
2020-04
Abstract
Changes in ocean wave climate play a crucial role in the coastal environments such as coastline change and coastal erosion. In this study, we investigate 99th percentile significant wave heights (SWH) (a measure for extreme SWHs), peak wave period (PWP), and peak wave direction (PWD) in the East Sea, using a 40-year (1979~2018) wave hindcast data simulated from a high-resolution wave model (SWAN) forced with the ERA-Interim wind fields. In association with the substantial seasonality in wind fields by the East Asian monsoon, the long-term means of wave properties (SWH, PWP, PWD) and trend of 99th percentile SWHs appear to significantly differ on the seasonal timescale. In addition, PWP shows an increasing trend in most of the East Sea, except for the northern East Sea during August to October showing a decreasing trend. Our findings suggest that while the PWP tends to increase in most of the East Sea except the northern area from August to October, the long-term trends of the 99th percentile SWH in the East Sea could considerably different depending on regions and seasons.
ISSN
2288-7903
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38807
Bibliographic Citation
한국연안방재학회지, v.7, no.2, pp.73 - 83, 2020
Publisher
(사)한국연안방재학회
Keywords
wave climate; linear trend; hindcast; East Sea
Type
Article
Language
Korean
Publisher
(사)한국연안방재학회
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