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Emma Spanswick
Researcher at University of Calgary
Publications - 111
Citations - 2519
Emma Spanswick is an academic researcher from University of Calgary. The author has contributed to research in topics: Substorm & Plasma sheet. The author has an hindex of 25, co-authored 105 publications receiving 2026 citations. Previous affiliations of Emma Spanswick include Los Alamos National Laboratory.
Papers
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Journal ArticleDOI
GPS TEC, scintillation and cycle slips observed at high latitudes during solar minimum
P. Prikryl,P. T. Jayachandran,S. C. Mushini,Dimitry Pokhotelov,John MacDougall,Eric Donovan,Emma Spanswick,J.-P. St.-Maurice +7 more
TL;DR: In this paper, the authors used data from the Canadian High Arctic Ionospheric Network (CHAIN) to measure amplitude and phase scintillation from L1 GPS signals and total electron content (TEC) from L 1 and L 2 GPS signals.
Journal ArticleDOI
Dropouts of the outer electron radiation belt in response to solar wind stream interfaces: global positioning system observations
Steven K. Morley,Reiner Friedel,Emma Spanswick,Emma Spanswick,Geoffrey D. Reeves,John T. Steinberg,Josef Koller,Thomas E. Cayton,Evan Noveroske +8 more
TL;DR: In this paper, a statistical study of relativistic electron counts in the electron radiation belt across a range of drift shells (L*>4) combining data from nine combined X-ray dosimeters (CXD) on the global positioning system (GPS) constellation is presented.
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New science in plain sight: Citizen scientists lead to the discovery of optical structure in the upper atmosphere
Elizabeth MacDonald,Elizabeth MacDonald,Eric Donovan,Yukitoshi Nishimura,Yukitoshi Nishimura,Nathan Case,D. Megan Gillies,B. Gallardo-Lacourt,B. Gallardo-Lacourt,W. E. Archer,Emma Spanswick,Notanee Bourassa,Martin Connors,Martin Connors,Martin Connors,Matt Heavner,Brian Jackel,B. Kosar,B. Kosar,David J. Knudsen,Chris Ratzlaff,Ian Schofield +21 more
TL;DR: Results suggest the arc is an optical manifestation of SAID, presenting new opportunities for investigation of the dynamic SAID signatures from the ground, and it is proposed to identify this arc as a Strong Thermal Emission Velocity Enhancement (STEVE).
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Simultaneous THEMIS in situ and auroral observations of a small substorm
Eric Donovan,W. W. Liu,Jun Liang,Emma Spanswick,I. O. Voronkov,Martin Connors,M. Syrjäsuo,G. Baker,Brian Jackel,T. S. Trondsen,M. Greffen,Vassilis Angelopoulos,Christopher T. Russell,Stephen B. Mende,Harald U. Frey,A. Keiling,C. W. Carlson,J. P. McFadden,Karl-Heinz Glassmeier,Uli Auster,Kanji Hayashi,Kaori Sakaguchi,Kazuo Shiokawa,Jim Wild,I. J. Rae +24 more
TL;DR: In this paper, a dipolarization front moved across four THEMIS satellites within one minute, and the expansion phase began earthward of the four satellites and evolved radially outwards.
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Efficient diffuse auroral electron scattering by electrostatic electron cyclotron harmonic waves in the outer magnetosphere: A detailed case study
Binbin Ni,Jun Liang,Richard M. Thorne,Vassilis Angelopoulos,Richard B. Horne,Marina Kubyshkina,Emma Spanswick,Eric Donovan,Dirk Lummerzheim +8 more
TL;DR: In this article, the authors used the wave and particle data to perform a comprehensive theoretical and numerical analysis of electrostatic electron cyclotron harmonic (ECH) wave driven resonant scattering rates and found that the observed ECH wave activity can cause intense pitch angle scattering of plasma sheet electrons between 100 eV and 5 eV at a rate of >10−4 s−1 for equatorial pitch angles αeq < 30°.