국내 연안역에서의 해수면의 시간적·공간적 변화 분석

• 영문명: Analysis of the Temporal and Spatial Changes of Sea Level in Korean Coastal Zone
• 발행기관: 한국연안방재학회
• 저자명: 양수현(Su-Hyun Yang) 안태용(Tae-Young An) 황규남(Kyu-Nam Hwang)
• 간행물 정보: 『한국연안방재학회지』제9권 제3호, 179~187쪽, 전체 9쪽
• 주제분류: 사회과학 > 사회과학일반
• 파일형태: PDF
• 발행일자: 2022.07.30

영문 초록

In this study, the temporal and spatial changes of sea level in Korean coastal zone were analyzed. First, the error value of 1 hour tide data provided by the Korea Hydrographic and Oceanographic Agency was excluded through preprocessing, the analysis of sea level change was performed by considering long period components through low-pass filtering. Using low-pass filtering data, the monthly mean sea level was calculated and the temporal changes of sea level were verified by data fitting using linear fit and multidimensional smoothing spline. The results of linear fit show that the tide tends to rise at most stations. And the results of multidimensional smoothing spline fit show that the increase and decrease of sea level is repeated every year. Although the amounts of change vary every year, sea levels have been repeated seasonally, with sea levels rising in summer and falling in winter. Also, Hovmöller diagram was prepared for the change of sea level in each east, west, and south coast, and the temporal and spatial changes of sea level were analyzed. Compared to the past, recent sea level changes increased in all points. Especially, in the west coast, the sea level increased more in the south (Mokpo) area than in the north (Yeongjong Bridge), and the south (Mokpo) area of the west coast could be a vulnerable area due to the rise in sea level.

목차

1. 서 론

2. 분석자료 및 분석방법

3. 분석결과

4. 결 론

References

키워드

Tide Mean sea level Low-pass filter Temporal and spatial changes