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On the horizontal distribution of high-latitude plasma density irregularities under particle precipitation

Sato, Hiroatsu and Kim, Junsu and Jakowski, Norbert and Häggström, Ingemar (2019) On the horizontal distribution of high-latitude plasma density irregularities under particle precipitation. EGU General Assembly 2019, 07 Apr-12 Apr 2019, Vienna, Austria.

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Abstract

We present small-scale plasma density irregularities simultaneously observed by L-band Synthetic Aperture Radar (SAR) and European Incoherent Scatter (EISCAT) radar in Tromsø, Norway. The irregular electron density is characterized by tens of kilometers of band-like structures aligned in the east–west direction with small patch-like structures. We estimate the local change of total electron content (TEC) and the height of ionospheric irregularities. This event occurred under high levels of ionization of up to approximately 300 km in height triggered by nighttime particle precipitation. The observed structures are likely to be caused by precipitating electrons and may have been cascaded into smaller scales. This study demonstrates an example of spaceborne SAR imaging as a new tool for exploring small-scale horizontal variations in ionospheric electron density

Item URL in elib:https://elib.dlr.de/127176/
Document Type:Conference or Workshop Item (Speech)
Title:On the horizontal distribution of high-latitude plasma density irregularities under particle precipitation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sato, HiroatsuHiroatsu.Sato (at) dlr.deUNSPECIFIED
Kim, JunsuJunsu.Kim (at) dlr.deUNSPECIFIED
Jakowski, NorbertNorbert.Jakowski (at) dlr.dehttps://orcid.org/0000-0003-3174-2624
Häggström, IngemarUNSPECIFIEDUNSPECIFIED
Date:April 2019
Refereed publication:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:ionosphere, high latitude, particle precipitation, SAR
Event Title:EGU General Assembly 2019
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:07 Apr-12 Apr 2019
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:20 May 2019 13:26
Last Modified:20 May 2019 13:26

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