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Coastal wave field extraction using TerraSAR-X data

Bruck, Miguel and Lehner, Susanne (2013) Coastal wave field extraction using TerraSAR-X data. Journal of Applied Remote Sensing, 7 (1), pp. 1-19. Society of Photo-optical Instrumentation Engineers (SPIE). doi: 10.1117/1.JRS.7.073694. ISSN 1931-3195.

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Official URL: http://dx.doi.org/10.1117/1.JRS.7.073694


The main highlights of TerraSAR-X (TS-X) synthetic aperture radar (SAR) imagery are a higher resolution of up to 1 m, when compared to conventional C-band SAR data, and a reduction of nonlinear imaging effects of a moving target by lower platform altitude. Thus, ocean waves with wavelength <30  m are detectable. This makes TS-X particularly useful to observe coastal areas where complex bathymetry strongly impacts the approaching waves. TS-X images acquired in different coastal areas are presented, including three case studies at the German coast. Wave fields (significant wave height and peak wavelength) are derived from the TS-X imagery using the proposed XWAVE algorithm and compared not only to in situ buoy wave measurements but also to results of a high-resolution numerical wave model. The objective is to study the quality of significant wave height field estimation in the spatial domain in highly variable conditions, which are typically dominant in coastal areas. The results show that the empirical XWAVE algorithm allows estimating wave fields from TS-X data with high resolution, thus showing the spatial information on wave variations. Therefore, it is a new useful tool to characterize sea state in coastal areas by remote sensing.

Item URL in elib:https://elib.dlr.de/86340/
Document Type:Article
Title:Coastal wave field extraction using TerraSAR-X data
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bruck, Miguelmiguel.bruck (at) dlr.deUNSPECIFIED
Lehner, SusanneSusanne.Lehner (at) dlr.deUNSPECIFIED
Date:25 September 2013
Journal or Publication Title:Journal of Applied Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1117/1.JRS.7.073694
Page Range:pp. 1-19
EditorsEmailEditor's ORCID iD
Chang, Ni-BinSPIE/ journals@spie.orgUNSPECIFIED
Publisher:Society of Photo-optical Instrumentation Engineers (SPIE)
Keywords:TerraSAR-X, synthetic aperture Radar, significant wave hight, sea state, coastal ocean areas
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben Entwicklung und Erprobung von Verfahren zur Gewässerfernerkundung (old)
Location: Bremen , Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Kaps, Ruth
Deposited On:26 Nov 2014 12:51
Last Modified:31 Jul 2019 19:43

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