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The new TanDEM-X DEM 2020: Generation and Specifications

Wessel, Birgit and Lachaise, Marie and Bachmann, Markus and Schweißhelm, Barbara and Huber, Martin and Fritz, Thomas and Tubbesing, Raphael and Buckreuss, Stefan (2022) The new TanDEM-X DEM 2020: Generation and Specifications. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, pp. 25-29. VDE Publishing House. EUSAR 2022, 25.-28. Jul. 2022, Leipzig, Germany. ISBN 978-3-8007-5823-4. ISSN 2197-4403.

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Official URL: https://www.vde-verlag.de/buecher/455823/eusar-2022.html


This paper introduces the new TanDEM-X DEM 2020. The TanDEM-X mission systematically acquired data mainly between September 2017 and mid-2020 to create another global DEM, the so-called “TanDEM-X DEM 2020”, former-ly also called TanDEM-X Change DEM. The present paper describes the generation of the TanDEM-X DEM 2020 in terms of the adopted acquisition planning strategy, the new interferometric processing and DEM generation as well as the final DEM product specifications. The main differences from the existing global TanDEM-X DEM (2010-2014) are the new and independent time frame and a new interferometric processing technique with lower phase unwrapping er-rors, allowing for a mainly single-coverage acquisition strategy except for more difficult terrain. The fewer acquisitions slightly increase the random height errors but still very high accuracy. Examples for height changes on forests and glac-iers between TanDEM-X DEM and TanDEM X DEM 2020 round off the paper with large-scale mosaics of Iceland and New Zealand.

Item URL in elib:https://elib.dlr.de/187245/
Document Type:Conference or Workshop Item (Speech)
Title:The new TanDEM-X DEM 2020: Generation and Specifications
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Wessel, BirgitUNSPECIFIEDhttps://orcid.org/0000-0002-8673-2485UNSPECIFIED
Lachaise, MarieUNSPECIFIEDhttps://orcid.org/0000-0002-1515-7540UNSPECIFIED
Bachmann, MarkusUNSPECIFIEDhttps://orcid.org/0000-0002-6028-4303UNSPECIFIED
Huber, MartinUNSPECIFIEDhttps://orcid.org/0000-0003-2665-2149UNSPECIFIED
Tubbesing, RaphaelCompany for Remote Sensing and Environmental Research (SLU), GermanyUNSPECIFIEDUNSPECIFIED
Buckreuss, StefanUNSPECIFIEDhttps://orcid.org/0000-0002-8458-7931UNSPECIFIED
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 25-29
Publisher:VDE Publishing House
Keywords:TanDEM-X, TanDEM-X DEM 2020, InSAR, specifications
Event Title:EUSAR 2022
Event Location:Leipzig, Germany
Event Type:international Conference
Event Dates:25.-28. Jul. 2022
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 - Remote Sensing and Geo Research, R - Support TerraSAR-X/TanDEM-X operations
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Microwaves and Radar Institute
German Remote Sensing Data Center > Land Surface Dynamics
Deposited By: Wessel, Dr.-Ing. Birgit
Deposited On:27 Jul 2022 09:50
Last Modified:11 Jan 2023 13:32

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