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Evaluation of ESA's Extended Timing Annotation Dataset (ETAD) for Sentinel-1 - First Results for Ice Velocity Monitoring and InSAR Applications in Greenland, Iceland and Norway

Gisinger, Christoph and Nagler, Thomas and Libert, Ludivine and Marinkovic, Petar and Larsen, Yngvar and Miranda, Nuno and Valentino, Antonio and Breit, Helko and Suchandt, Steffen and Balss, Ulrich and Krieger, Lukas and Fritz, Thomas and Eineder, Michael (2021) Evaluation of ESA's Extended Timing Annotation Dataset (ETAD) for Sentinel-1 - First Results for Ice Velocity Monitoring and InSAR Applications in Greenland, Iceland and Norway. FRINGE 2021, 31. May - 4. June 2021, Virtual, Online.

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Abstract

SAR images benefit from excellent geometric accuracy due to accurate time measurements in range and precise orbit determination in azimuth. Moreover, the interferometric phase of each single pixel can be exploited to achieve differential range measurements for the reconstruction of topography and the observation of earth surface deformation and surface motions. But these measurements are influenced by the spatial and temporal variability of the atmospheric conditions, by Earth dynamics, and by SAR processor approximations, which may lead to overall displacements shifts of up to several meters. These effects become visible in various SAR applications including the retrieval of ice velocity applying offset tracking and various InSAR applications, which might require several post-processing steps and external information for correction. In this paper we present the Extended Timing Annotation Dataset (ETAD) for Sentinel-1 recently developed in a joint effort by ESA and DLR based on research results and processor prototypes available at DLR.

Item URL in elib:https://elib.dlr.de/142648/
Document Type:Conference or Workshop Item (Speech)
Title:Evaluation of ESA's Extended Timing Annotation Dataset (ETAD) for Sentinel-1 - First Results for Ice Velocity Monitoring and InSAR Applications in Greenland, Iceland and Norway
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Gisinger, Christophchristoph.gisinger (at) dlr.dehttps://orcid.org/0000-0002-4116-0188
Nagler, ThomasENVEO, AustriaUNSPECIFIED
Libert, LudivineENVEO, AustriaUNSPECIFIED
Marinkovic, PetarPPO.labsUNSPECIFIED
Larsen, YngvarNorutUNSPECIFIED
Miranda, NunoESRIN, ESAUNSPECIFIED
Valentino, AntonioESRIN, ESAUNSPECIFIED
Breit, HelkoHelko.Breit (at) dlr.dehttps://orcid.org/0000-0001-7865-3288
Suchandt, Steffensteffen.suchandt (at) dlr.dehttps://orcid.org/0000-0001-6797-326X
Balss, UlrichUlrich.Balss (at) dlr.deUNSPECIFIED
Krieger, Lukaslukas.krieger (at) dlr.dehttps://orcid.org/0000-0002-2464-3102
Fritz, ThomasThomas.Fritz (at) dlr.deUNSPECIFIED
Eineder, MichaelMichael.Eineder (at) dlr.dehttps://orcid.org/0000-0001-5068-1324
Date:2021
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Atmosphere, Ionosphere, SAR, InSAR, Sentinel-1, Ice Velocity
Event Title:FRINGE 2021
Event Location:Virtual, Online
Event Type:international Conference
Event Dates:31. May - 4. June 2021
Organizer:ESA
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 - SAR methods
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Gisinger, Christoph
Deposited On:15 Jun 2021 07:47
Last Modified:16 Jun 2021 13:05

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