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  5. Magnetosheath jet occurrence rate in relation to CMEs and SIRs
 
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Magnetosheath jet occurrence rate in relation to CMEs and SIRs
File(s)
JGR Space Physics - 2022 - Koller - Magnetosheath Jet Occurrence Rate in Relation to CMEs and SIRs.pdf (1.42 MB)
Published version
OA Location
http://dx.doi.org/10.1029/2021JA030124
Author(s)
Koller, Florian
Temmer, Manuela
Preisser, Luis
Plaschke, Ferdinand
Geyer, Paul
more
Type
Journal Article
Abstract
Magnetosheath jets constitute a significant coupling effect between the solar wind (SW) and the magnetosphere of the Earth. In order to investigate the effects and forecasting of these jets, we present the first-ever statistical study of the jet production during large-scale SW structures like coronal mass ejections (CMEs), stream interaction regions (SIRs) and high speed streams (HSSs). Magnetosheath data from Time History of Events and Macroscale Interactions during Substorms (THEMIS) spacecraft between January 2008 and December 2020 serve as measurement source for jet detection. Two different jet definitions were used to rule out statistical biases induced by our jet detection method. For the CME and SIR + HSS lists, we used lists provided by literature and expanded on incomplete lists using OMNI data to cover the time range of May 1996 to December 2020. We find that the number and total time of observed jets decrease when CME-sheaths hit the Earth. The number of jets is lower throughout the passing of the CME-magnetic ejecta (ME) and recovers quickly afterward. On the other hand, the number of jets increases during SIR and HSS phases. We discuss a few possibilities to explain these statistical results.
Date Issued
2022-04
Date Acceptance
2022-03-23
Citation
Journal of Geophysical Research: Space Physics, 2022, 127 (4)
URI
http://hdl.handle.net/10044/1/96378
URL
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021JA030124
DOI
https://www.dx.doi.org/10.1029/2021ja030124
ISSN
2169-9380
Publisher
American Geophysical Union (AGU)
Journal / Book Title
Journal of Geophysical Research: Space Physics
Volume
127
Issue
4
Copyright Statement
©2022. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited
License URL
http://creativecommons.org/licenses/by/4.0/
Sponsor
The Royal Society
The Royal Society
Identifier
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021JA030124
Grant Number
RGF\EA\181090
URF\R1\180671
Subjects
0201 Astronomical and Space Sciences
0401 Atmospheric Sciences
Publication Status
Published
Date Publish Online
2022-04-08
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