High-Accuracy Tidal Flat Digital Elevation Model Construction Using TanDEM-X Science Phase Data SCIE SCOPUS

Cited 17 time in WEB OF SCIENCE Cited 17 time in Scopus
Title
High-Accuracy Tidal Flat Digital Elevation Model Construction Using TanDEM-X Science Phase Data
Author(s)
Lee, Seung-Kuk; Ryu, Joo-Hyung
KIOST Author(s)
Ryu, Joo Hyung(유주형)
Publication Year
2017-06
Abstract
This study explored the feasibility of using TanDEM-X (TDX) interferometric observations of tidal flats for digital elevation model (DEM) construction. Our goal was to generate high-precision DEMs in tidal flat areas, because accurate intertidal zone data are essential for monitoring coastal environments and erosion processes. To monitor dynamic coastal changes caused by waves, currents, and tides, very accurate DEMs with high spatial resolution are required. The bi- and monostatic modes of the TDX interferometer employed during the TDX science phase provided a great opportunity for highly accurate intertidal DEM construction using radar interferometry with no time lag (bistatic mode) or an approximately 10-s temporal baseline (monostatic mode) between the master and slave synthetic aperture radar image acquisitions. In this study, DEM construction in tidal flat areas was first optimized based on the TDX system parameters used in various TDX modes. We successfully generated intertidal zone DEMs with 5-7-m spatial resolutions and interferometric height accuracies better than 0.15 m for three representative tidal flats on the west coast of the Korean Peninsula. Finally, we validated these TDX DEMs against real-time kinematic-GPS measurements acquired in two tidal flat areas; the correlation coefficient was 0.97 with a root mean square error of 0.20 m.
ISSN
1939-1404
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/1220
DOI
10.1109/JSTARS.2017.2656629
Bibliographic Citation
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, v.10, no.6, pp.2713 - 2724, 2017
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Subject
WADDEN SEA; GOMSO BAY; SAR; GENERATION; DEM
Keywords
DEM; radar interferometry; tidal flat; TanDEM-X (TDX); TDX science phase
Type
Article
Language
English
Document Type
Article
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Related Researcher
Research Interests

Coastal Remote Sensing,RS based Marine Surveillance System,GOCI Series Operation,연안 원격탐사,원격탐사기반 해양감시,천리안해양관측위성 운영

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