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Imaging ionospheric irregularities by earth observation radar satellite

Sato, Hiroatsu and Kim, Junsu and Otsuka, Yuichi (2022) Imaging ionospheric irregularities by earth observation radar satellite. 16th International Symposium on Equatorial Aeronomy, 2022-09-12 - 2022-09-16, Uji, Japan.

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Official URL: https://www.rish.kyoto-u.ac.jp/isea16/program.html

Abstract

The sensitivity of Synthetic Aperture Radar (SAR) satellite signal in the L-band to ionospheric plasma density is used to obtain two-dimensional imaging of ionospheric density irregularities. As an application for equatorial ionosphere, we have recently reported first simultaneous observation of equatorial plasma bubble by the ALOS-2/PALSAR-2 satellite and a ground 630-nm airglow imager in northern Brazil. In this case, SAR ionospheric scintillation are represented as stripe-like signature of radar image over the terrain along the local magnetic field lines near an airglow depletion region. This so-called SAR scintillation stripes are discussed to be the signature of existing small-scale plasma irregularities with the scale size of hundreds of meters associated with equatorial plasma bubbles. We present the observational setup and the interpretation of SAR signal parameters to characterize the two-dimensional ionospheric density structures, and discuss future studies.

Item URL in elib:https://elib.dlr.de/189095/
Document Type:Conference or Workshop Item (Speech)
Title:Imaging ionospheric irregularities by earth observation radar satellite
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Sato, HiroatsuUNSPECIFIEDhttps://orcid.org/0000-0002-5886-2768UNSPECIFIED
Kim, JunsuUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Otsuka, YuichiUNSPECIFIEDhttps://orcid.org/0000-0002-3098-3859UNSPECIFIED
Date:September 2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Ionosphere, plasma bubble
Event Title:16th International Symposium on Equatorial Aeronomy
Event Location:Uji, Japan
Event Type:international Conference
Event Start Date:12 September 2022
Event End Date:16 September 2022
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 - Solar-Terrestrial Physics SO
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics
Deposited By: Sato, Hiroatsu
Deposited On:05 Dec 2022 11:25
Last Modified:24 Apr 2024 20:50

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