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Waterline detection and monitoring in the German Wadden Sea using high resolution satellite-based radar measurements

Wiehle, Stefan and Lehner, Susanne and Pleskachevsky, Andrey (2015) Waterline detection and monitoring in the German Wadden Sea using high resolution satellite-based radar measurements. In: Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-7 (W3), pp. 1029-1033. 36th International Symposium on Remote Sensing of Environment (ISRSE), 11.-15. Mai 2015, Berlin. DOI: 10.5194/isprsarchives-XL-7-W3-1029-2015

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Official URL: http://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XL-7-W3/1029/2015/isprsarchives-XL-7-W3-1029-2015.pdf


High resolution remote sensing Synthetic Aperture Radar (SAR) data from TerraSAR-X/Tandem-X satellites are used to determine and monitor the waterline in the German Wadden Sea area. The Wadden Sea is a very unique and dynamic coastal region located in the North Sea in the German bight. Tidal flats extend several kilometres away from the coast during low tide with features like tidal inlets and sand banks. Under the influence of tidal water currents transporting large amounts of eroded material, these sand banks are also moved over time; heavy storms can even cause large variations in sand bank extensions in merely a few hours. The Wadden Sea is also subject to high ship traffic to the ports of Hamburg, Bremerhaven, Wilhemshaven and others. Hence, observation of obstacles like sand banks and decreasing water depth is crucial for maritime security. Conventional monitoring campaigns with ships or airplanes are economically expensive and can only provide limited coverage. From the high resolution TerraSAR-X/Tandem-X data of the Wadden Sea and large river estuaries like Elbe and Weser, the waterline at the time of recording is extracted using an automatic algorithm with Near-Real-Time capability. This allows for a fast and large scale determination of changes in island and coastal outlines. Additionally, the bathymetry of the observed area can be determined from the extracted waterlines by combining data from many different flybys at different tidal levels.

Item URL in elib:https://elib.dlr.de/95405/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Link: Abstract & Conference Paper (PDF, 6003 KB)
Title:Waterline detection and monitoring in the German Wadden Sea using high resolution satellite-based radar measurements
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wiehle, StefanStefan.Wiehle (at) dlr.deUNSPECIFIED
Lehner, SusanneSusanne.Lehner (at) dlr.deUNSPECIFIED
Pleskachevsky, Andreyandrey.pleskachevsky (at) dlr.deUNSPECIFIED
Journal or Publication Title:Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.5194/isprsarchives-XL-7-W3-1029-2015
Page Range:pp. 1029-1033
Keywords:North Sea, Wadden Sea, bathymetry, coastal processes, remote sensing, radar satellites
Event Title:36th International Symposium on Remote Sensing of Environment (ISRSE)
Event Location:Berlin
Event Type:international Conference
Event Dates:11.-15. Mai 2015
Organizer:International Society for Photogrammetry and Remote Sensing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
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 Feb 2015 11:06
Last Modified:30 Nov 2015 17:56

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