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A new index for statistical analyses and prediction of travelling ionospheric disturbances

Borries, Claudia and Ferreira, Arthur Amaral and Nykiel, Grzegorz and Borges, R. A. (2023) A new index for statistical analyses and prediction of travelling ionospheric disturbances. Journal of Atmospheric and Solar-Terrestrial Physics, 247, p. 106069. Elsevier. doi: 10.1016/j.jastp.2023.106069. ISSN 1364-6826.

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Official URL: https://www.sciencedirect.com/science/article/pii/S1364682623000676

Abstract

Travelling Ionospheric Disturbances (TIDs) are signatures of atmospheric gravity waves (AGWs) observed in changes in the electron density. The analysis of TIDs is relevant for studying coupling processes in the thermosphere–ionosphere system. A new TID index ATID is introduced, which is based on an easy extension of the commonly used approach for TID detection. This TID activity index, which can be applied for individual Global Navigation Satellite Systems (GNSS) stations and also for mapping TID activity, is capable to study both Large Scale TIDs (LSTIDs) and Medium Scale TIDs (MSTIDs). ATID is well applicable for statistical analyses and investigations of the source mechanisms of TIDs. Correlation studies presented here reveal that LSTID magnitudes at mid-latitudes are well correlated with solar wind derived parameters, like the Kan-Lee merging electric field (EKL), the intermediate function (EWAV) and the modified version of the Akasufo ϵ parameter (ϵ3). Thus, the magnitude of the global solar-wind energy input into the Earth’s magnetosphere–ionosphere–thermosphere system is most relevant for the LSTID generation. The correlation with common geomagnetic activity indices shows that also sudden changes in the magnetosphere–ionosphere–thermosphere system are relevant. Good correlation results are limited to mid-latitudes. High-latitude regions are impacted by auroral processes and low-latitude regions by coupling from below and other instabilities. ATID can be used for the modelling and prediction as demonstrated with a prediction model for storm induced LSTIDs, based on solar wind observations only. Very good performance of this LSTIDs prediction model in mid-latitudes has been proven.

Item URL in elib:https://elib.dlr.de/195014/
Document Type:Article
Title:A new index for statistical analyses and prediction of travelling ionospheric disturbances
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Borries, ClaudiaUNSPECIFIEDhttps://orcid.org/0000-0001-9948-3353UNSPECIFIED
Ferreira, Arthur AmaralUNSPECIFIEDhttps://orcid.org/0000-0002-1083-6376UNSPECIFIED
Nykiel, GrzegorzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Borges, R. A.UNSPECIFIEDhttps://orcid.org/0000-0002-6072-8621UNSPECIFIED
Date:23 April 2023
Journal or Publication Title:Journal of Atmospheric and Solar-Terrestrial Physics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:247
DOI:10.1016/j.jastp.2023.106069
Page Range:p. 106069
Publisher:Elsevier
ISSN:1364-6826
Status:Published
Keywords:TIDs, Solar wind drivers, Geomagnetic storms, Prediction
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 - Project Space weather research
Location: Neustrelitz
Institutes and Institutions:Institute for Solar-Terrestrial Physics > Solar-Terrestrial Coupling Processes
Institute for Solar-Terrestrial Physics
Deposited By: Borries, Dr. Claudia
Deposited On:22 May 2023 14:49
Last Modified:29 Jan 2024 12:06

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