SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting

Gareth W. Perry; Bea Gallardo-Lacourt; William E. Archer; Simon S. Shepherd; Ashton S. Reimer; D. Megan Gillies

doi:10.23919/USNC-URSINRSM57467.2022.9881415

SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting

Gareth W. Perry, Bea Gallardo-Lacourt, William E. Archer, Simon S. Shepherd, Ashton S. Reimer, D. Megan Gillies

Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In situ spacecraft observations of STEVE (Strong Thermal Emission Velocity Enhancement) have confirmed that the phenomena are an intense SAID (SubAuroral Ion Drift). These observations tell us that STEVE is typically an extremely narrow channel (of the order of 20 km) of zonal ion flows (of the order of 5 km/s) that is collocated with a minimum in the sub-auroral trough meridional plasma density profile and extremely enhanced electron temperatures (of the order of 7000 K). Statistics derived from all sky imager data of STEVE shows that it typically occurs approximately one hour after substorm onset and has a lifetime of the order of one hour. The mechanism that produces STEVE's famous mauve optical emission which has captivated the citizen science community and - more recently - the 'traditional' science community remains elusive along with the evolution of the phenomena from start to finish. Super Dual Auroral Radar Network (SuperDARN) High Frequency (HF) radars have been used for several years to study SAID and may provide a way of studying the evolution of STEVE events, including when its optical signature is too dim to observe with an imager.

Original language	English (US)
Title of host publication	2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	208-209
Number of pages	2
ISBN (Electronic)	9781946815156
DOIs	https://doi.org/10.23919/USNC-URSINRSM57467.2022.9881415
State	Published - 2022
Event	2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Boulder, United States Duration: Jan 4 2022 → Jan 8 2022

Publication series

Name	2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings

Conference

Conference	2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022
Country/Territory	United States
City	Boulder
Period	1/4/22 → 1/8/22

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Instrumentation

Access to Document

10.23919/USNC-URSINRSM57467.2022.9881415

Cite this

Perry, G. W., Gallardo-Lacourt, B., Archer, W. E., Shepherd, S. S., Reimer, A. S., & Gillies, D. M. (2022). SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting. In 2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings (pp. 208-209). (2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.23919/USNC-URSINRSM57467.2022.9881415

Perry, Gareth W. ; Gallardo-Lacourt, Bea ; Archer, William E. et al. / SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting. 2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2022. pp. 208-209 (2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings).

@inproceedings{c3115c9299ad4aac9725ea2a1f50f7a6,

title = "SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting",

abstract = "In situ spacecraft observations of STEVE (Strong Thermal Emission Velocity Enhancement) have confirmed that the phenomena are an intense SAID (SubAuroral Ion Drift). These observations tell us that STEVE is typically an extremely narrow channel (of the order of 20 km) of zonal ion flows (of the order of 5 km/s) that is collocated with a minimum in the sub-auroral trough meridional plasma density profile and extremely enhanced electron temperatures (of the order of 7000 K). Statistics derived from all sky imager data of STEVE shows that it typically occurs approximately one hour after substorm onset and has a lifetime of the order of one hour. The mechanism that produces STEVE's famous mauve optical emission which has captivated the citizen science community and - more recently - the 'traditional' science community remains elusive along with the evolution of the phenomena from start to finish. Super Dual Auroral Radar Network (SuperDARN) High Frequency (HF) radars have been used for several years to study SAID and may provide a way of studying the evolution of STEVE events, including when its optical signature is too dim to observe with an imager.",

author = "Perry, {Gareth W.} and Bea Gallardo-Lacourt and Archer, {William E.} and Shepherd, {Simon S.} and Reimer, {Ashton S.} and Gillies, {D. Megan}",

note = "Publisher Copyright: {\textcopyright} 2022 USNC-URSI.; 2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 ; Conference date: 04-01-2022 Through 08-01-2022",

year = "2022",

doi = "10.23919/USNC-URSINRSM57467.2022.9881415",

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series = "2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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Perry, GW, Gallardo-Lacourt, B, Archer, WE, Shepherd, SS, Reimer, AS & Gillies, DM 2022, SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting. in 2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings. 2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 208-209, 2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022, Boulder, United States, 1/4/22. https://doi.org/10.23919/USNC-URSINRSM57467.2022.9881415

SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting. / Perry, Gareth W.; Gallardo-Lacourt, Bea; Archer, William E. et al.
2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2022. p. 208-209 (2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting

AU - Perry, Gareth W.

AU - Gallardo-Lacourt, Bea

AU - Archer, William E.

AU - Shepherd, Simon S.

AU - Reimer, Ashton S.

AU - Gillies, D. Megan

PY - 2022

Y1 - 2022

N2 - In situ spacecraft observations of STEVE (Strong Thermal Emission Velocity Enhancement) have confirmed that the phenomena are an intense SAID (SubAuroral Ion Drift). These observations tell us that STEVE is typically an extremely narrow channel (of the order of 20 km) of zonal ion flows (of the order of 5 km/s) that is collocated with a minimum in the sub-auroral trough meridional plasma density profile and extremely enhanced electron temperatures (of the order of 7000 K). Statistics derived from all sky imager data of STEVE shows that it typically occurs approximately one hour after substorm onset and has a lifetime of the order of one hour. The mechanism that produces STEVE's famous mauve optical emission which has captivated the citizen science community and - more recently - the 'traditional' science community remains elusive along with the evolution of the phenomena from start to finish. Super Dual Auroral Radar Network (SuperDARN) High Frequency (HF) radars have been used for several years to study SAID and may provide a way of studying the evolution of STEVE events, including when its optical signature is too dim to observe with an imager.

AB - In situ spacecraft observations of STEVE (Strong Thermal Emission Velocity Enhancement) have confirmed that the phenomena are an intense SAID (SubAuroral Ion Drift). These observations tell us that STEVE is typically an extremely narrow channel (of the order of 20 km) of zonal ion flows (of the order of 5 km/s) that is collocated with a minimum in the sub-auroral trough meridional plasma density profile and extremely enhanced electron temperatures (of the order of 7000 K). Statistics derived from all sky imager data of STEVE shows that it typically occurs approximately one hour after substorm onset and has a lifetime of the order of one hour. The mechanism that produces STEVE's famous mauve optical emission which has captivated the citizen science community and - more recently - the 'traditional' science community remains elusive along with the evolution of the phenomena from start to finish. Super Dual Auroral Radar Network (SuperDARN) High Frequency (HF) radars have been used for several years to study SAID and may provide a way of studying the evolution of STEVE events, including when its optical signature is too dim to observe with an imager.

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Perry GW, Gallardo-Lacourt B, Archer WE, Shepherd SS, Reimer AS, Gillies DM. SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting. In 2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2022. p. 208-209. (2022 United States National Committee of URSI National Radio Science Meeting, USNC-URSI NRSM 2022 - Proceedings). doi: 10.23919/USNC-URSINRSM57467.2022.9881415

SuperDARN Observations of STEVE USNC-URSI National Radio Science Meeting

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