Abstract
A comparative analysis is performed of the development of two polar substorms observed over Spitsbergen on December 17, 2012. Magnetometer data from the SuperMAG and IMAGE networks is used in combination with data from the AMPERE satellites and observations of the aurora made by the Barentsburg observatory (Spitsbergen archipelago). It is shown that the superpositioning of the evening polar substorm and the poleward leap of the western edge of the electrojet of the nighttime auroral substorm differed from a typical night polar substorm in the forms of the auroras, the distribution of field-aligned currents, and their midlatitude effects.
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ACKNOWLEDGMENTS
We thank the anonymous reviewer for his/her helpful remarks.
We are grateful to the developers of the OMNI (http://omniweb.gsfc.nasa.gov), SuperMAG (http://supermag.jhuapl.edu/), IMAGE (http://space.fmi.fi/image/), and AMPERE (http://www.ampere.jhuapl.edu) databases for allowing us to use them in our work.
Funding
The work of I.V. Despirak and A.A. Lubchich in analyzing phenomena at high latitudes was performed as part of State Task for the Polar Geophysical Institute. Their work in analyzing phenomena at middle latitudes was supported by the Russian Foundation for Basic Research, project no. 20-55-18003-Bulg_а. The work of N.G. Kleimenova was supported by the Russian Foundation for Basic Research, project no. 20-55-18003Bulg_а. The work of L.M. Malysheva was performed as part of a State Task for the Schmidt Institute of Physics of the Earth. The work of L.I. Gromova was performed as part of a State Task for the Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation. The work of A.V. Roldugin and B.V. Kozelov was performed as part of a State Task for the Polar Geophysical Institute.
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Translated by L. Mukhortova
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Despirak, I.V., Kleimenova, N.G., Lubchich, A.A. et al. Magnetic Substorms and Auroras at the Polar Latitudes of Spitsbergen: Events of December 17, 2012. Bull. Russ. Acad. Sci. Phys. 86, 266–274 (2022). https://doi.org/10.3103/S1062873822030091
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DOI: https://doi.org/10.3103/S1062873822030091