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TanDEM-X: Science Exploration during the Phase C/D

Hajnsek, Irena und Busche, Thomas und Moreira, Alberto (2008) TanDEM-X: Science Exploration during the Phase C/D. In: Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR). VDE. European Conference on Synthetic Aperture Radar (EUSAR), 2008-06-02 - 2008-06-05, Friedrichshafen, Germany.

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Offizielle URL: http://www.eusar.de/Conferences_en/EUSAR+2008/

Kurzfassung

Topographic data building the base for information extraction which are of fundamental importance for the envi-ronment, economics, human security and to support decision makers. In order to provide reliable information’s of the Earth’s surface the DEM need to be up to date, consistent, accurate, high resolution and unrestricted available (GEOSS, IGOS, Earth Observation Summit, GMES). To fulfil these demands and requirements only a high per-formance Satellite concept will be capable to take the various attributes into account. At present the global coverage of topographic data at sufficiently high spatial resolution is currently inadequate or simply not available for scientific and governmental use. SRTM was the first step to meet the requirements of the scientific community for a homogenous, highly reliable DEM fulfilling the DTED-2 specifications. However, the acquired and processed high resolution DEM’s are not globally available (SRTM has mapped the earth be-tween 60 N and 56 S) and have wide gaps at lower latitudes. The concept of TanDEM-X has the potential to close the gaps, to fulfill the requirements and to provide the vital information’s for the variety of stakeholders. TanDEM-X (TerraSAR-X add-on for Digital Elevation Measurement) has the goal of generating a global Digital Elevation Model (DEM) with an unprecedented accuracy corresponding to the DTED 3 specifications. This goal will be achieved by means of a second SAR satellite (TanDEM-X) flying in a tandem orbit configuration with TerraSAR-X (TSX-1). In this paper the focus is given to the scientific activities of the main objectives and the secondary objectives of the TanDEM-X satellite mission. The performance of X-band SAR interferometry for the derivation of a DEM over critical areas (e.g. dense vegetation cover and snow/ice) are evaluated. In particular the polarimetric capa-bilities are explored for the DEM generation. In addition the performance of Pol-InSAR at X-band is explored, as it is an important asset for a DEM correction over volume areas. This topic is a part of the science activities for the secondary objectives of the TanDEM-X mission.

Dokumentart:Konferenzbeitrag (Vortrag)
Titel:TanDEM-X: Science Exploration during the Phase C/D
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Hajnsek, IrenaNICHT SPEZIFIZIERT
Busche, ThomasNICHT SPEZIFIZIERT
Moreira, AlbertoNICHT SPEZIFIZIERT
Datum:Juni 2008
Erschienen in:Proceedings of the European Conference on Synthetic Aperture Radar (EUSAR)
Referierte Publikation:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Verlag:VDE
Status:veröffentlicht
Stichwörter:TanDEM-X, Forest, Ice
Veranstaltungstitel:European Conference on Synthetic Aperture Radar (EUSAR)
Veranstaltungsort:Friedrichshafen, Germany
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2008-06-02 - 2008-06-05
Veranstalter :Astrium EADS
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Prosmart, Smart-SAR (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Hochfrequenztechnik und Radarsysteme > Radarkonzepte
Institut für Hochfrequenztechnik und Radarsysteme
Hinterlegt von: Dr.rer.nat. Irena Hajnsek
Hinterlegt am:16 Dez 2008
Letzte Änderung:27 Apr 2009 15:37

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