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TanDEM-X Water Body Layer - First Results

Bueso Bello, Jose Luis and Rizzoli, Paola and Sica, Francescopaolo and Valdo, Paolo and Posovszky, Philipp and Gonzalez, Carolina and Martone, Michele (2020) TanDEM-X Water Body Layer - First Results. In: Proceedings of European Conference on Synthetic Aperture Radar (EUSAR). VDE Verlag GmbH. European Conference on Synthetic Aperture Radar (EUSAR), 2020-06-15 - 2020-06-18, Leipzig, Germany.

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Abstract

The interferometric SAR dataset acquired by TanDEM-X to generate a global Digital Elevation Model, covering at least twice the complete Earth's mass, represents a unique data source to derive geo-information products at a global scale. In the bistatic TanDEM-X system, characterized by the absence of temporal decorrelation, the interferometric coherence adds valuable information to the common amplitude images, typically acquired by SAR systems. Using the interferometric coherence of TanDEM-X acquisitions as the main input, we are in process of generating a global Water Body Layer (WBL). This paper reports on the developed activities for this purpose. The proposed approach takes into account the geometric properties of SAR acquisition scenes, in order to mitigate the effects of geometric distortions, such as shadow and layover, and to improve the discrimination between water bodies and vegetated areas characterized by low coherence. The resulting WBL represents an enhancement of the current Water Indication Mask delivered within the TanDEM-X DEM products. Taking benefit from the two global coverages of TanDEM-X data, it is possible to determine the minimum and maximum areas of extent of the different water bodies. At a local scale, it is even possible to monitor the water bodies extension variability and their seasonality. On coastal regions, at a local scale and by means of time series, it is possible to monitor the evolution of the coastal line over time.

Item URL in elib:https://elib.dlr.de/130613/
Document Type:Conference or Workshop Item (Speech)
Title:TanDEM-X Water Body Layer - First Results
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Bueso Bello, Jose LuisUNSPECIFIEDhttps://orcid.org/0000-0003-3464-2186
Rizzoli, PaolaUNSPECIFIEDhttps://orcid.org/0000-0001-9118-2732
Sica, FrancescopaoloUNSPECIFIEDhttps://orcid.org/0000-0003-1593-1492
Valdo, PaoloUNSPECIFIEDhttps://orcid.org/0000-0003-0641-5808
Posovszky, PhilippUNSPECIFIEDhttps://orcid.org/0000-0003-0656-3691
Gonzalez, CarolinaUNSPECIFIEDhttps://orcid.org/0000-0002-9340-1887
Martone, MicheleUNSPECIFIEDhttps://orcid.org/0000-0002-4601-6599
Date:2020
Journal or Publication Title:Proceedings of European Conference on Synthetic Aperture Radar (EUSAR)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:VDE Verlag GmbH
Status:Accepted
Keywords:Synthetic Aperture Radar, SAR, Interferometry, Water Detection, Shoreline, DEM Editing
Event Title:European Conference on Synthetic Aperture Radar (EUSAR)
Event Location:Leipzig, Germany
Event Type:international Conference
Event Dates:2020-06-15 - 2020-06-18
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 - Projekt TanDEM-X
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Bueso Bello, Jose Luis
Deposited On:15 Nov 2019 13:21
Last Modified:17 Feb 2020 11:23

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