Mapping bathymetry based on waterlines observed from low altitude Helikite remote sensing platform SCIE SCOPUS

Cited 5 time in WEB OF SCIENCE Cited 3 time in Scopus
Title
Mapping bathymetry based on waterlines observed from low altitude Helikite remote sensing platform
Author(s)
Jo, Young-Heon; Sha, Jin; Kwon, Jae-Il; Jun, Kicheon; Park, Jinku
KIOST Author(s)
Kwon, Jae Il(권재일)Jun, Kicheon(전기천)
Publication Year
2015-09
Abstract
Mapping shoreline changes along coastal regions is critically important in monitoring continuously rising sea surface heights due to climate change and frequent severe storms. Thus, it is especially important if the region has very high tidal ranges over very gentle tidal flats, which is a very vulnerable region. Although the various remote sensing platforms can be used to map shoreline changes, the spatial and temporal resolutions are not enough to obtain it for a short time. Accordingly, in this study we introduce the newly developed low altitude Helikite remote sensing platform to achieve much better resolutions of shorelines and a bathymetry. The Helikite stands for Helium balloon and Kite, which is a kind of aerial platform that uses the advantages of both a Helium balloon and a kite. Field experiments were conducted in the Jaebu Island, off the coast of the west Korean Peninsula in January 29, 2011. In order to extract shorelines from the consecutive images taken by the low altitude Helikite remote sensing platform, active contours without edges (ACWE) is used. Edges or boundaries exist primarily on places between one type of objective and the other. Since the hydrodynamic pressure has an effect everywhere, the locations of the waterlines can be the isobath lines. We could map several waterlines, which would enable us to complete a local bathymetry map ranges from 35 to 60 cm depth. The error resulting from applying ACWE algorithm to the imagery to determine the waterline is approximately less than 1 m. Therefore, it is very unique way to obtain such high resolutions of bathymetry with high accuracy for the regions of extremely high tidal ranges for a short time.
ISSN
0253-505X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2424
DOI
10.1007/s13131-015-0730-8
Bibliographic Citation
ACTA OCEANOLOGICA SINICA, v.34, no.9, pp.110 - 116, 2015
Publisher
SPRINGER
Subject
MULTITEMPORAL SATELLITE IMAGES; DIGITAL ELEVATION MODEL; LANDSAT TM DATA; AERIAL-PHOTOGRAPHY; CONSTRUCTION; EXTRACTION; SHORELINE; DELTA; SAR
Keywords
Helikite; mapping shoreline; active contours without edges (ACWE); remote sensing
Type
Article
Language
English
Document Type
Article
Publisher
SPRINGER
Related Researcher
Research Interests

Ocean Numerical Modelling,Physical Oceanography,Coastal processess,해양수치모델,물리해양학,연안과정

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