Nighttime Magnetic Perturbation Events Observed in Arctic Canada: 2. Multiple‐Instrument Observations

Engebretson, M. J.; Steinmetz, E. S.; Posch, J. L.; Pilipenko, V. A.; Moldwin, M. B.; Connors, M. G.; Boteler, D. H.; Mann, I. R.; Hartinger, M. D.; Weygand, J. M.; Lyons, L. R.; Nishimura, Y.; Singer, H. J.; Ohtani, S.; Russell, C. T.; Fazakerley, A.; Kistler, L. M.

doi:10.1029/2019ja026797

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Nighttime Magnetic Perturbation Events Observed in Arctic Canada: 2. Multiple‐Instrument Observations

2019
By Engebretson, M. J. ; Steinmetz, E. S. ; Posch, J. L. ; ...
Source: Journal of Geophysical Research: Space Physics, 124(9), 7459-7476

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Journal Title:

Journal of Geophysical Research: Space Physics
Personal Author:

Engebretson, M. J. ; Steinmetz, E. S. ; Posch, J. L. ; Pilipenko, V. A. ; Moldwin, M. B. ; ... More +

Engebretson, M. J. ; Steinmetz, E. S. ; Posch, J. L. ; Pilipenko, V. A. ; Moldwin, M. B. ; Connors, M. G. ; Boteler, D. H. ; Mann, I. R. ; Hartinger, M. D. ; Weygand, J. M. ; Lyons, L. R. ; Nishimura, Y. ; Singer, H. J. ; Ohtani, S. ; Russell, C. T. ; Fazakerley, A. ; Kistler, L. M. Less -
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NWS (National Weather Service) ; SWPC (Space Weather Prediction Center)

NWS (National Weather Service) ; SWPC (Space Weather Prediction Center) Less -
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The rapid changes of magnetic ﬁelds associated with nighttime magnetic perturbations with amplitudes | ΔB| of hundreds of nanoteslas and 5 ‐to 10‐min periods can induce bursts of geomagnetically induced currents that can harm technological systems. This paper presents three cases of intervals of intense and complex nighttime magnetic perturbations in eastern Arctic Canada in 2015, augmented by observations from auroral imagers and high ‐altitude spacecraft in the nightside magnetosphere. Each case occurred within 1 hr after substorm onsets. None occurred during the main phase of a geomagnetic storm, and only the ﬁrst during the early recovery phase (of a moderate storm). The cases were similar in that
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Geophysics Space And Planetary Science
Source:

Journal of Geophysical Research: Space Physics, 124(9), 7459-7476
DOI:

https://doi.org/10.1029/2019ja026797
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2169-9380;2169-9402;
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PDF
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American Geophysical Union (AGU)
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Journal Article
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urn:sha256:3271b215bc018a84302cbecd155883bf44cf4d7581bc54b2732bb8e92548dbe9
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https://repository.library.noaa.gov/view/noaa/53075/noaa_53075_DS1.pdf
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