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TanDEM-X Water Indication Mask: Generation and First Evaluation Results

Wendleder, Anna and Wessel, Birgit and Roth, Achim and Breunig, Markus and Martin, Klaus and Wagenbrenner, Susanne (2012) TanDEM-X Water Indication Mask: Generation and First Evaluation Results. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, pp. 1-9. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/JSTARS.2012.2210999. ISSN 1939-1404.



The German SAR interferometry mission TanDEM-X performed on two TerraSAR-X satellites flying in close formation will provide a global Digital Elevation Model (DEM). A by-product is so-called the Water Indication Mask (WAM). The purpose of this supplementary information layer is to support the DEM editing process. Water surfaces usually show lower coherence in an interferometric data set due to temporal de-correlation and low backscattering. Consequently the corresponding elevation values derived from the interferogram are random and produce a virtual relief. This paper introduces the operational water body detection workflow that synergistically evaluates amplitude and coherence information. The presented results of two test sites reveal that the methodology is globally applicable, classifications are highly accurate and the algorithm is appropriate for operational image processing. The water body detection consists of two steps: the Water Body Detection (WBD) derived of one single DEM scene and the mosaicking of multiple WBD to a single Water Indication Mask (WAM). The fusion strategy for the final TanDEM-X WAM considers all WBD acquired at different times in two global coverages and bases on a fusion by union containing the results of the amplitude and the coherence.

Item URL in elib:https://elib.dlr.de/79416/
Document Type:Article
Title:TanDEM-X Water Indication Mask: Generation and First Evaluation Results
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Wendleder, Annaanna.wendleder (at) dlr.deUNSPECIFIED
Wessel, BirgitBirgit.Wessel (at) dlr.deUNSPECIFIED
Roth, AchimAchim.Roth (at) dlr.deUNSPECIFIED
Breunig, Markusmarkus.breunig (at) dlr.deUNSPECIFIED
Wagenbrenner, SusanneSusanne.Wagenbrenner (at) dlr.deUNSPECIFIED
Journal or Publication Title:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1109/JSTARS.2012.2210999
Page Range:pp. 1-9
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:amplitude, coherence, DEM editing, TanDEM-X, water body detection
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 - Projekt TanDEM-X (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface
Deposited By: Wendleder, Anna
Deposited On:26 Feb 2013 13:17
Last Modified:19 Nov 2021 20:28

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