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High Resolution Sea Ice Observation using Space-borne Fully Polarimetric SAR

Singha, Suman and Johansson, A. Malin and Hughes, Nicholas and Hvidegaard, Sine M. and Skourup, Henriette (2018) High Resolution Sea Ice Observation using Space-borne Fully Polarimetric SAR. In: Abstract Proceedings POLAR 2018, p. 1110. POLAR 2018, 15.- 26. Juni 2018, Davos, Switzerland. ISBN 978-0-948277-54-2.

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Official URL: https://www.polar2018.org/


Satellite images are an essential source of information for sea ice products such as the sea ice concentration maps issued by the national ice charting agencies. In this regard, Synthetic Aperture Radar (SAR) is especially valuable given its all-weather capabilities. Within this study we investigate the usefulness of fully polarimetric SAR by utilizing an automatic sea ice classification algorithm, developed for Near Real T ime (NRT) services, on two sets of spatially and temporally near coincident fully polarimetric acquisitions from the ALOS-2, Radarsat-2 and TerraSAR-X satellites acquired during the N-ICE2015 sea ice drift study. Overlapping coincident sea ice freeboard measurements from Airborne Laser Scanner (ALS) data are used to validate the classification results. We analyzed the usefulness of 18 different polarimetric parameters for sea ice characterization. In order to deliver sea ice products in NRT savings in computational time are very important and by reducing redundant parameters we can speed up the delivery time. Validation with the coincident ALS data shows that 100 % of the open water is separated from the surrounding sea ice and that the sea ice classes have at least 96.9 % accuracy . A notable difference between the C/X-band and the L-band images was the high importance of entropy for the L-band sea ice classifications.

Item URL in elib:https://elib.dlr.de/118776/
Document Type:Conference or Workshop Item (Speech)
Additional Information:conference proceedings: https://www.polar2018.org/uploads/2/4/6/0/24605948/polar2018_abstractproceedings.pdf updated until 25 May 2018. All changes after that date (presenting authors, oral and poster contributions cancelled after that date, changes from poster to oral presentation, additional co-authors) are not reflected in these proceedings. The final version of the abstracts is available in the online program on http://www.professionalabstracts.com/POLAR2018/iPlanner
Title:High Resolution Sea Ice Observation using Space-borne Fully Polarimetric SAR
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Singha, SumanSuman.Singha (at) dlr.dehttps://orcid.org/0000-0002-1880-6868
Johansson, A. MalinUiT The Arctic University of Norway, Department of Physics and Technology, NO-9037, Tromso, NorwayUNSPECIFIED
Hughes, NicholasNorwegian Ice Service, Norwegian Meteorological Institute, NO-9293 Tromso, NorwayUNSPECIFIED
Hvidegaard, Sine M.National Space Institute, Technical University of Denmark, DK - 2800 Kgs. Lyngby DenmarkUNSPECIFIED
Skourup, HenrietteNational Space Institute, Technical University of Denmark, DK - 2800 Kgs. Lyngby DenmarkUNSPECIFIED
Date:20 June 2018
Journal or Publication Title:Abstract Proceedings POLAR 2018
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 1110
Keywords:Sea Ice, Polarimetry, High-Resolution, Feature Evaluation, TerraSAR-X, RADARSAT-2, ALOS-2
Event Title:POLAR 2018
Event Location:Davos, Switzerland
Event Type:international Conference
Event Dates:15.- 26. Juni 2018
Organizer:SCAR & IASC
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 - SAR methods
Location: Bremen , Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Kaps, Ruth
Deposited On:23 Feb 2018 10:19
Last Modified:31 Jul 2019 20:16

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