Use of optical video imagery to improve wave run-up prediction accuracy SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Use of optical video imagery to improve wave run-up prediction accuracy
Author(s)
Lee, Su-Chan; Choi, Jin-Yong; Park, Kwang-Soon; Kim, Sun-Sin; Kim, Seon-Jeong; Jun, Ki-Cheon
KIOST Author(s)
Lee, Su Chan(이수찬)Choi, Jin Yong(최진용)Jun, Ki Cheon(전기천)
Publication Year
2018-05
Abstract
On the eastern coast of Korea, wave run-up occurrences have induced several accidents causing damage to human life. To prevent the occurrence of casualties in coastal areas, the breakwater disaster alert system has been employed, which issues a warning based on an estimate of the incident-wave height. This estimate of wave height is obtained through numerical solution of an empirical formula derived from the relationship between incident-wave and run-up heights. By utilizing the empirical formula and wave forecast, the breakwater disaster alert system has been successfully employed in the Sokcho, Samcheok, and Jumunjin regions in the Republic of Korea. This study proposes wave height-based modifications to the above empirical formula through use of additional datasets recorded during the period from November 2016 to June 2017. These datasets concerning wave height and wave period were recorded at the Jumunjin ports by P-gage. Simultaneously, run-up heights at this port was estimated via video images. Using the recorded dataset, a number of high run-up events were selected, and from the video recorded for each of these events, individual image frames were sequentially sampled and rectified into real world coordinates. Run-up properties estimated from the extracted signal record for run-up reference level points were combined with measurements of incident waves in order to derive an empirical relation between incident waves and run-up heights. By employing the modified empirical formula, accuracy in run-up height prediction has been found to be improved.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/913
DOI
10.2112/SI85-255.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.1271 - 1275, 2018
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Subject
FIELD
Keywords
run-up; breakwater; optical image
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Related Researcher
Research Interests

Operational Oceanography,Numerical Modeling,운용해양,수치모델링

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