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Large‐Scale Traveling Ionospheric Disturbances Over the European Sector During the Geomagnetic Storm on March 23–24, 2023: Energy Deposition in the Source Regions and the Propagation Characteristics

Nykiel, Grzegorz and Ferreira, Arthur Amaral and Günzkofer, Florian Ludwig and Iochem, Pelin and Tasnim, Samira and Sato, Hiroatsu (2024) Large‐Scale Traveling Ionospheric Disturbances Over the European Sector During the Geomagnetic Storm on March 23–24, 2023: Energy Deposition in the Source Regions and the Propagation Characteristics. Journal of Geophysical Research: Space Physics, 129 (3). Wiley. doi: 10.1029/2023JA032145. ISSN 2169-9380.

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Official URL: https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2023JA032145

Abstract

Multiple Large-Scale Traveling Ionospheric Disturbances (LSTIDs) are observed in the European sector in both day-time and night-time during the magnetic storm on March 23–24, 2023. The Total Electron Content (TEC) observation from a network of GNSS receivers shows the propagation of LSTIDs with amplitudes between around 0.5 and 1 TECU originating from auroral and polar cusp regions down to southern Europe (35°N) with velocities between around 500 and 1,600 [m/s]. We study the energy deposition to the LSTIDs in the source regions and the resulting horizontal propagation over storm-time background density by using continuous measurements of EISCAT incoherent scatter radars in northern Norway and Svalbard that allow for estimating the source energy to the thermosphere-ionosphere system via Joule heating and particle precipitation. Both EISCAT and GNSS TEC data show that the electron density decreased to 50% in the auroral zone after the storm onset. The ionospheric heating caused a nearly 250% increase in the electron temperature above 200 km altitude and the ion temperature above 100 km altitude. We find that Joule Heating acts as a primary energy source for the night-time LSTIDs triggered in the auroral region, while the day-time LSTIDs can be also driven by precipitating particles in the polar cusp. We also find that a significant background density decrease over the whole European sector is caused by this storm for the following day, during which almost no clear LSTIDs are observed.

Item URL in elib:https://elib.dlr.de/203311/
Document Type:Article
Title:Large‐Scale Traveling Ionospheric Disturbances Over the European Sector During the Geomagnetic Storm on March 23–24, 2023: Energy Deposition in the Source Regions and the Propagation Characteristics
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Nykiel, GrzegorzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ferreira, Arthur AmaralUNSPECIFIEDhttps://orcid.org/0000-0002-1083-6376UNSPECIFIED
Günzkofer, Florian LudwigUNSPECIFIEDhttps://orcid.org/0000-0001-6568-2995UNSPECIFIED
Iochem, PelinUNSPECIFIEDhttps://orcid.org/0000-0003-4308-8439157065805
Tasnim, SamiraUNSPECIFIEDhttps://orcid.org/0000-0002-0305-2071157065806
Sato, HiroatsuUNSPECIFIEDhttps://orcid.org/0000-0002-5886-2768UNSPECIFIED
Date:15 March 2024
Journal or Publication Title:Journal of Geophysical Research: Space Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:129
DOI:10.1029/2023JA032145
Publisher:Wiley
ISSN:2169-9380
Status:Published
Keywords:Large-Scale Traveling Ionospheric Disturbances, GNSS, EISCAT, Magnetic storm
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, R - Solar-Terrestrial coupling processes
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics
Institute for Solar-Terrestrial Physics > Solar-Terrestrial Coupling Processes
Deposited By: Sato, Hiroatsu
Deposited On:05 Apr 2024 20:58
Last Modified:18 Jun 2024 13:46

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