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Ionosphere in low frequency Synthetic Aperture Radar images

Sato, Hiroatsu and Kim, Jun Su and Papathanassiou, Konstantinos (2017) Ionosphere in low frequency Synthetic Aperture Radar images. In: Ionosphere in low frequency Synthetic Aperture Radar images. JpGu-AGU Joint Meeting 2017, 20 May - 25 May 2017, chiba, Japan.

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Abstract

Space borne Synthetic Aperture Radar (SAR) images the Earth’s surface through the ionosphere. The images in L-band SAR are known to be distorted by the ionospheric propagation effects associated with ionospheric irregularities both in high and low latitude. We present recent experiments to study ionosphere using space borne radar images, ground radars and GNSS measurements. In high latitude, during evenings of geomagnetic disturbances, the enhancement of ionospheric electron densities associated with auroral activity is detected by ground observations. The simultaneous acquisitions of SAR show distortions of the ground images where streak-like structures are present. In low latitudes, on the other hand, the post-sunset drifts of plasma instabilities monitored by ground radars are seen as stripe structures in SAR images. We develop methods to identify ionospheric parameters from SAR measurements and propose it as a new complementary method for ground radars.

Item URL in elib:https://elib.dlr.de/118869/
Document Type:Conference or Workshop Item (Speech)
Title:Ionosphere in low frequency Synthetic Aperture Radar images
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sato, HiroatsuHiroatsu.Sato (at) dlr.deUNSPECIFIED
Kim, Jun SuUNSPECIFIEDUNSPECIFIED
Papathanassiou, KonstantinosKostas.Papathanassiou (at) dlr.deUNSPECIFIED
Date:2017
Journal or Publication Title:Ionosphere in low frequency Synthetic Aperture Radar images
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:ionosphere, SAR, TEC, GNSS
Event Title:JpGu-AGU Joint Meeting 2017
Event Location:chiba, Japan
Event Type:international Conference
Event Dates:20 May - 25 May 2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Ionosphäre
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: Sato, Hiroatsu
Deposited On:09 Feb 2018 09:37
Last Modified:09 Feb 2018 09:37

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