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Sensitivity of Polarimetric SAR Interferometry Data to Different Vertical Subsurface Structures of the Greenland Ice Sheet

Fischer, Georg and Parrella, Giuseppe and Papathanassiou, Konstantinos and Hajnsek, Irena (2017) Sensitivity of Polarimetric SAR Interferometry Data to Different Vertical Subsurface Structures of the Greenland Ice Sheet. In: International Geoscience and Remote Sensing Symposium (IGARSS). IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017-07-23 - 2017-08-28, Forth Worth, USA.

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Abstract

The vertical structure of firn below the surface of the Greenland ice sheet is driven by meteorological conditions like the intensity and duration of melting periods. The formation of ice inclusions through melt-refreeze processes leads to strong scatterers whose vertical distribution influences interferometric coherences. Interferometric coherence profiles from quad-pol SAR data show clear sensitivity to the different subsurfaces of two test sites with different melting periods. The differences in coherence are explained in this study through modelling of the different vertical subsurface structures which is supported by ground penetrating radar measurements. The shown sensitivity demonstrates the potential of polarimetric SAR interferometry to retrieve information about melt-refreeze processes and layering below the surface of ice sheets.

Item URL in elib:https://elib.dlr.de/111713/
Document Type:Conference or Workshop Item (Speech, Poster)
Title:Sensitivity of Polarimetric SAR Interferometry Data to Different Vertical Subsurface Structures of the Greenland Ice Sheet
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fischer, GeorgUNSPECIFIEDhttps://orcid.org/0000-0002-7987-5453
Parrella, GiuseppeUNSPECIFIEDhttps://orcid.org/0000-0002-9174-7331
Papathanassiou, KonstantinosUNSPECIFIEDUNSPECIFIED
Hajnsek, IrenaUNSPECIFIEDUNSPECIFIED
Date:2017
Journal or Publication Title:International Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:Pol-InSAR, vertical structure, subsurface, polarization, glaciers, ice sheets
Event Title:IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Forth Worth, USA
Event Type:international Conference
Event Dates:2017-07-23 - 2017-08-28
Organizer:IEEE
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 - Vorhaben Fernerkundung der Landoberfläche (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Radar Concepts
Deposited By: Fischer, Georg
Deposited On:03 Apr 2017 08:13
Last Modified:05 Feb 2018 16:58

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