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TanDEM-X Change DEM: The Latest DEM Based on New Global Acquisitions (2017-2019)

Lachaise, Marie and Bachmann, Markus and Fritz, Thomas and Huber, Martin and Schweißhelm, Barbara and Wessel, Birgit (2019) TanDEM-X Change DEM: The Latest DEM Based on New Global Acquisitions (2017-2019). In: TanDEM-X science meeting. TerraSAR-X / TanDEM-X Science Team Meeting, 2019-10-21 - 2019-10-24, Oberpfaffenhofen, Germany.

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Abstract

The production of the global TanDEM-X Digital Elevation Model (DEM) clearly showed that, at this level of accuracy, height differences are visible between interferometric SAR data acquired at different periods. As a matter of fact, height changes in glaciers, forests but also those caused by agricultural activities or infrastructure changes are well defined in the X-band DEM. Therefore, in 2017 the mission decided to acquire an additional complete coverage of the Earth's landmass. The aim is to provide an independent DEM dataset within a well-defined time span from September 2017 until the end of 2019. This additional dataset will allow monitoring topographic changes with respect to the TanDEM-X DEM on a global scale. Hence the name of the resulting product is "TanDEM-X Change DEM". It benefits from improvements in the acquisition planning process and in the data processing which enable to achieve reliable DEM data of high accuracy with fewer acquisitions. For this goal, the use of an edited TanDEM-X DEM as "starting point" for the processing is mandatory allowing us to detect some 3D elevation changes.

Item URL in elib:https://elib.dlr.de/129305/
Document Type:Conference or Workshop Item (Speech)
Title:TanDEM-X Change DEM: The Latest DEM Based on New Global Acquisitions (2017-2019)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Lachaise, Mariemarie.lachaise (at) dlr.dehttps://orcid.org/0000-0002-1515-7540
Bachmann, MarkusMarkus.Bachmann (at) dlr.dehttps://orcid.org/0000-0002-6028-4303
Fritz, ThomasThomas.Fritz (at) dlr.deUNSPECIFIED
Huber, MartinMartin.Huber (at) dlr.dehttps://orcid.org/0000-0003-2665-2149
Schweißhelm, BarbaraBarbara.Schweisshelm (at) dlr.deUNSPECIFIED
Wessel, BirgitBirgit.Wessel (at) dlr.dehttps://orcid.org/0000-0002-8673-2485
Date:2019
Journal or Publication Title:TanDEM-X science meeting
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:TanDEM-X Change DEM
Event Title:TerraSAR-X / TanDEM-X Science Team Meeting
Event Location:Oberpfaffenhofen, Germany
Event Type:Workshop
Event Dates:2019-10-21 - 2019-10-24
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:Remote Sensing Technology Institute > SAR Signal Processing
German Remote Sensing Data Center > Land Surface Dynamics
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Lachaise, Dr Marie
Deposited On:27 Sep 2019 12:03
Last Modified:22 Nov 2019 20:11

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