Remote sensing of wave runup over breakwater slope in field using optical imagery SCIE SCOPUS

Cited 3 time in WEB OF SCIENCE Cited 3 time in Scopus
Title
Remote sensing of wave runup over breakwater slope in field using optical imagery
Author(s)
Yoo, Jeseon; Choi, Jin-Yong; Yoon, Jong-Joo; Jun, Ki-Cheon; Shim, Jae-Seol; Kim, Seonjeong; Min, In-Ki
KIOST Author(s)
Yoo, Jeseon(유제선)Choi, Jin Yong(최진용)null전기천Kim, Seon Jeong(김선정)Min, In Ki(민인기)
Alternative Author(s)
유제선; 최진용; 윤종주; 전기천; 심재설; 김선정; 민인기
Publication Year
2013
Abstract
In this paper, wave run-up on the seaward slope of a breakwater in field was measured remotely using optical video imagery and investigated through comparisons with an empirical formula. In order to extract properties of wave run-up and over-topping on the breakwater slope from field videos, individual image frames were sequentially sampled at 3 Hz from a video burst first. Then, the sampled sequential image frames were rectified into real world coordinates. A cross-shore image timestack was generated by collecting an image pixel array, which was defined along the cross-shore transect on the seaward breakwater face of interest. Trajectory of the run-up on the seaward face evolving in time was extracted from the image timestack using a line detection method. The properties of the run-up estimated from field video bursts were combined to the measurements of incident waves, in order to derive an empirical relation between incident waves and run-up. The video-based relative wave run-up height (i.e. R-u,R-2%/ Hs) at a typical armored breakwater with tetrapods was found to be about 2.15. This value is about in the range of the general formula, which was derived from laboratory experiments in earlier studies.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3337
DOI
10.2112/SI65-245.1
Bibliographic Citation
JOURNAL OF COASTAL RESEARCH, pp.1451 - 1455, 2013
Publisher
COASTAL EDUCATION & RESEARCH FOUNDATION
Keywords
Optical image; breakwater; run-up; over-topping; line detection; swell; coastal inundation; image calibration
Type
Article
Language
English
Document Type
Article; Proceedings Paper
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