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Title: SAPS-associated explosive brightening on the dusk-side: A new type of onset-like disturbance: A new type of onset-like disturbance

Abstract

Quasi-periodic energetic particle injections have been observed at geosynchronous orbit on the dusk-side during a steady magnetospheric convection event. Here, we examine high resolution auroral imager data and ground magnetometer data associated with the first of these injections and conclude that it was not associated with classical substorm signatures. It is proposed that these injections are caused by the explosive non-linear growth of a shear-flow-ballooning instability in the region where sub-auroral polarization streams (SAPS) also occur. It is suggested that interchange will occur preferentially in the low-conductivity SAPS region since the magnetic Richardson number is lowest there and the ‘line-tying’ effect will also be least stabilizing there. We also propose that the observed particle injection signatures and auroral morphology constitute a new type of SAPS-associated explosive ‘onset-like’ disturbance that can occur during intervals of strong convection.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). Center for Nonlinear Studies (CNLS)
  2. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
National Science Foundation (NSF); USDOE
OSTI Identifier:
1412861
Report Number(s):
LA-UR-17-24956
Journal ID: ISSN 2169-9380; TRN: US1800379
Grant/Contract Number:  
AC52-06NA25396; ATM-0202303
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Geophysical Research. Space Physics
Additional Journal Information:
Journal Volume: 123; Journal Issue: 1; Journal ID: ISSN 2169-9380
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; Heliospheric and Magnetospheric Physics

Citation Formats

Henderson, M. G., Morley, S. K., and Kepko, L. E. SAPS-associated explosive brightening on the dusk-side: A new type of onset-like disturbance: A new type of onset-like disturbance. United States: N. p., 2017. Web. doi:10.1002/2017JA024472.
Henderson, M. G., Morley, S. K., & Kepko, L. E. SAPS-associated explosive brightening on the dusk-side: A new type of onset-like disturbance: A new type of onset-like disturbance. United States. doi:10.1002/2017JA024472.
Henderson, M. G., Morley, S. K., and Kepko, L. E. Wed . "SAPS-associated explosive brightening on the dusk-side: A new type of onset-like disturbance: A new type of onset-like disturbance". United States. doi:10.1002/2017JA024472. https://www.osti.gov/servlets/purl/1412861.
@article{osti_1412861,
title = {SAPS-associated explosive brightening on the dusk-side: A new type of onset-like disturbance: A new type of onset-like disturbance},
author = {Henderson, M. G. and Morley, S. K. and Kepko, L. E.},
abstractNote = {Quasi-periodic energetic particle injections have been observed at geosynchronous orbit on the dusk-side during a steady magnetospheric convection event. Here, we examine high resolution auroral imager data and ground magnetometer data associated with the first of these injections and conclude that it was not associated with classical substorm signatures. It is proposed that these injections are caused by the explosive non-linear growth of a shear-flow-ballooning instability in the region where sub-auroral polarization streams (SAPS) also occur. It is suggested that interchange will occur preferentially in the low-conductivity SAPS region since the magnetic Richardson number is lowest there and the ‘line-tying’ effect will also be least stabilizing there. We also propose that the observed particle injection signatures and auroral morphology constitute a new type of SAPS-associated explosive ‘onset-like’ disturbance that can occur during intervals of strong convection.},
doi = {10.1002/2017JA024472},
journal = {Journal of Geophysical Research. Space Physics},
number = 1,
volume = 123,
place = {United States},
year = {2017},
month = {12}
}

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Works referenced in this record:

Multisatellite observations of rapid subauroral ion drifts (SAID)
journal, December 2001

  • Anderson, P. C.; Carpenter, D. L.; Tsuruda, K.
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A12
  • DOI: 10.1029/2001JA000128

Optical characterization of the growth and spatial structure of a substorm onset arc: SUBSTORM ONSET ARC STRUCTURE AND GROWTH
journal, October 2010

  • Rae, I. J.; Watt, C. E. J.; Mann, I. R.
  • Journal of Geophysical Research: Space Physics, Vol. 115, Issue A10
  • DOI: 10.1029/2010JA015376

The features of auroral bulge expansion
journal, December 1979


The development of the auroral substorm
journal, April 1964


Recent progress in studies of DMSP auroral photographs
journal, July 1976


Mapping the local time-universal time development of magnetospheric substorms using mid-latitude magnetic observations
journal, July 1974

  • Clauer, C. Robert; McPherron, Robert L.
  • Journal of Geophysical Research, Vol. 79, Issue 19
  • DOI: 10.1029/JA079i019p02811

Auroral precipitation power during substorms: A Polar UV Imager-based superposed epoch analysis
journal, December 2001

  • Newell, Patrick T.; Liou, Kan; Sotirelis, Thomas
  • Journal of Geophysical Research: Space Physics, Vol. 106, Issue A12
  • DOI: 10.1029/2000JA000428

Shear flow-ballooning instability as a possible mechanism for hydromagnetic fluctuations
journal, January 1986

  • Viñas, Adolfo F.; Madden, Theodore R.
  • Journal of Geophysical Research, Vol. 91, Issue A2
  • DOI: 10.1029/JA091iA02p01519

Polarization patterns of Pi 2 magnetic pulsations and the substorm current wedge
journal, January 1983

  • Lester, Mark; Hughes, Jeffrey W.; Singer, Howard J.
  • Journal of Geophysical Research, Vol. 88, Issue A10
  • DOI: 10.1029/JA088iA10p07958

A proposed production model of rapid subauroral ion drifts and their relationship to substorm evolution
journal, April 1993

  • Anderson, P. C.; Hanson, W. B.; Heelis, R. A.
  • Journal of Geophysical Research: Space Physics, Vol. 98, Issue A4
  • DOI: 10.1029/92JA01975

Substorm Current Wedge Revisited
journal, December 2014


What is a global auroral substorm?
journal, May 1996

  • Elphinstone, R. D.; Murphree, J. S.; Cogger, L. L.
  • Reviews of Geophysics, Vol. 34, Issue 2
  • DOI: 10.1029/96RG00483

Nature of Pi1B pulsations as inferred from ground and satellite observations
journal, January 2006

  • Lessard, M. R.; Lund, E. J.; Jones, S. L.
  • Geophysical Research Letters, Vol. 33, Issue 14
  • DOI: 10.1029/2006GL026411

Substorm triggering by new plasma intrusion: THEMIS all-sky imager observations: SUBSTORM SEQUENCE-THEMIS-ASI
journal, July 2010

  • Nishimura, Y.; Lyons, L.; Zou, S.
  • Journal of Geophysical Research: Space Physics, Vol. 115, Issue A7
  • DOI: 10.1029/2009JA015166

Observations in the vicinity of substorm onset: Implications for the substorm process
journal, January 1995

  • Elphinstone, R. D.; Hearn, D. J.; Cogger, L. L.
  • Journal of Geophysical Research, Vol. 100, Issue A5
  • DOI: 10.1029/94JA02938

Hydrogen emission and electron aurora at the onset of the auroral breakup
journal, November 1973


Equatorward and poleward expansion of the auroras during auroral substorms
journal, April 1993

  • Nakamura, Rumi; Oguti, Takasi; Yamamoto, Tatsundo
  • Journal of Geophysical Research: Space Physics, Vol. 98, Issue A4
  • DOI: 10.1029/92JA02230

Intense sheared flow as the origin of large-scale undulations of the edge of the diffuse aurora
journal, January 1986


An auroral torch structure as an activity center of pulsating auroras
journal, August 1981

  • Oguti, T.; Kokubun, S.; Hayashi, K.
  • Canadian Journal of Physics, Vol. 59, Issue 8
  • DOI: 10.1139/p81-139

On the place of the pseudo-breakup in a magnetospheric substorm
journal, January 1998

  • Rostoker, Gordon
  • Geophysical Research Letters, Vol. 25, Issue 2
  • DOI: 10.1029/97GL03583

Are north-south aligned auroral structures an ionospheric manifestation of bursty bulk flows?
journal, October 1998

  • Henderson, M. G.; Reeves, G. D.; Murphree, J. S.
  • Geophysical Research Letters, Vol. 25, Issue 19
  • DOI: 10.1029/98GL02692

Interchange instability of the Earth's plasmapause
journal, January 1990

  • Huang, T. S.; Wolf, R. A.; Hill, T. W.
  • Journal of Geophysical Research, Vol. 95, Issue A10
  • DOI: 10.1029/JA095iA10p17187

Problems in Auroral Morphology
journal, January 1957

  • Elvey, C. T.
  • Proceedings of the National Academy of Sciences, Vol. 43, Issue 1
  • DOI: 10.1073/pnas.43.1.63

North-south structures in the midnight sector auroras as viewed by the Viking imager
journal, April 1987

  • Rostoker, Gordon; Lui, A. T. Y.; Anger, C. D.
  • Geophysical Research Letters, Vol. 14, Issue 4
  • DOI: 10.1029/GL014i004p00407

Observational evidence for an inside-out substorm onset scenario
journal, January 2009


Start-to-end global imaging of a sunward propagating, SAPS-associated giant undulation event: SAPS-ASSOCIATED GIANT UNDULATION EVENT
journal, April 2010

  • Henderson, M. G.; Donovan, E. F.; Foster, J. C.
  • Journal of Geophysical Research: Space Physics, Vol. 115, Issue A4
  • DOI: 10.1029/2009JA014106

The auroral distribution and its mapping according to substorm phase
journal, December 1993

  • Elphinstone, R. D.; Murphree, J. S.; Hearn, D. J.
  • Journal of Atmospheric and Terrestrial Physics, Vol. 55, Issue 14
  • DOI: 10.1016/0021-9169(93)90142-L

SAPS: A new categorization for sub-auroral electric fields
journal, January 2002

  • Foster, J. C.; Burke, W. J.
  • Eos, Transactions American Geophysical Union, Vol. 83, Issue 36
  • DOI: 10.1029/2002EO000289

Magnetic conjugacy of northern and southern auroral beads: INTERHEMISPHERIC AURORAL BEADS
journal, April 2012

  • Motoba, Tetsuo; Hosokawa, Keisuke; Kadokura, Akira
  • Geophysical Research Letters, Vol. 39, Issue 8
  • DOI: 10.1029/2012GL051599

Substorm triggering by poleward boundary intensification and related equatorward propagation: SUBSTORM TRIGGERING
journal, April 2011

  • Mende, S. B.; Frey, H. U.; Angelopoulos, V.
  • Journal of Geophysical Research: Space Physics, Vol. 116, Issue A5
  • DOI: 10.1029/2010JA015733

Why Kp is such a good measure of magnetospheric convection
journal, November 2004