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High Latitude Magnetospheric Topology and Magnetospheric Substorm : Volume 27, Issue 10 (28/10/2009)

By Antonova, E. E.

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Book Id: WPLBN0003978977
Format Type: PDF Article :
File Size: Pages 5
Reproduction Date: 2015

Title: High Latitude Magnetospheric Topology and Magnetospheric Substorm : Volume 27, Issue 10 (28/10/2009)  
Author: Antonova, E. E.
Volume: Vol. 27, Issue 10
Language: English
Subject: Science, Annales, Geophysicae
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Orlova, K. G., Ovchinnikov, I. L., Kirpichev, I. P., Antonova, E. E., & Stepanova, M. V. (2009). High Latitude Magnetospheric Topology and Magnetospheric Substorm : Volume 27, Issue 10 (28/10/2009). Retrieved from http://community.ebooklibrary.org/


Description
Description: Skobeltsyn Institute of Nuclear Physics Moscow State University, Moscow, Russia. This study is focused on the problem of the localization of substorm expansion onset. In this context, the high latitude topology of transverse magnetospheric currents has been analyzed. This study has included the radial distribution of plasma pressure near noon, obtained using the THEMIS-B satellite data, the daytime compression of magnetic field lines and the existence of magnetic field minima far from the equatorial plane, given by all geomagnetic field models. As a result, the dayside integral transverse currents at the geocentric distances 7–10 RE has been estimated. It is suggested, that nightside transverse currents at geocentric distances ~7–10 RE are closed inside the magnetosphere and with dayside transverse currents form surrounding the Earth current system (cut ring current or CRC) which topologically is the high latitude continuation of ordinary ring current. A possibility of localization of substorm expansion onset at the nighside CRC region is analyzed using the experimental evidences that the onset is localized at geocentric distances <10 RE.

Summary
High latitude magnetospheric topology and magnetospheric substorm

Excerpt
Antonova, E. E., Kornilov, I. A., Kornilova, T. A., Kornilov, O. I., and Stepanova, M. V.: Features of auroral breakup obtained using data of ground-based television observations: case study, Ann. Geophys., 27, 1413–1422, 2009a.; Antonova, E. E., Kirpichev, I. P., Stepanova, M. V., Orlova, K. G., and Ovchinnikov, I. L.: Topology of the high latitude magnetosphere during large magnetic storms and the main mechanisms of relativistic electron acceleration, Adv. Space Res., 43(4), 628–633, 2009b.; Delcourt, D. C. and Sauvaud, J.-A.: Populating of the cusp and boundary layers by energetic (hundreds of keV) equatorial particles, J. Geophys. Res., 104(A10), 22635–22648, 1999.; DeMichelis, P., Daglis, I. A., and Consolini, G.: Average terrestrial ring current derived from AMPTE/CCE-CHEM measurements, J. Geophys. Res., 102(A7), 14103–14111, 1997.; DeMichelis, P., Daglis, I. A., and Consolini, G.: An average image of proton plasma pressure and of current systems in the equatorial plane derived from AMPTE/CCE–CHEM measurements, J. Geophys. Res., 104(A12), 28615–28624, 1999.; Dubyagin, S. V., Sergeev, V. A., Carlson, C. W., Marple, S. R., Pulkkinen, T. I., and Yahnin, A. G.: Evidence of near-Earth breakup location, Geophys. Res. Lett., 30(6), 1282, doi:10.1029/2002GL016569, 2003.; Frank, L. A. and Sigwarth, J. B.: Findings concerning the position of substorm expansion onsets with auroral images from the Polar spacecraft, J. Geophys. Res., 105(A6), 12747–12761, 2000.; Hori, T., Ohtani, S., Lui, A. T. Y., McEntire, R. W., Maezawa, K., Sato, Y., and Mukai, T. A.: Substorm associated drift echo of energetic protons observed by Geotail: Radial density gradient structure, Geophys. Res. Lett., 30(6), 1330, doi:10.1029/20002GL016137, 2003.; Lui, A. T. Y.: Potential plasma instabilities for substorm expansion onsets, Space Sci. Rev., 113(1), 127–206, 2004.; Lui, A. T. Y. and Hamilton, D. C.: Radial profile of quite time magnetospheric parameters, J. Geophys. Res., 97(A12), 19325–19332, 1992.; Lui, A. T. Y., Angelopoulos, V., LeContel, O., Frey, H., Donovan, E., Sibeck, D. J., Liu, W., Auster, H . U., Larson, D., Li, X., Nosé, M., and Fillingim, N. O.: Determination of the substorm initiation region from a major conjunction interval of THEMIS satellites, J. Geophys. Res., 113, A00C04, doi:10.1029/2008JA013424, 2008.; Lyons, L. R., Voronkov, I. O., Donovan, E. F., and Zesta, E.: Relation of substorm breakup arc to other growth-phase auroral arcs, J. Geophys. Res., 107(A11), 1390, doi:10.1029/2002JA009317, 2002.; Millino, A., Orsini, S., and Daglis, I. A.: Empirical model of proton flux in the equatorial inner magnetosphere: Development, J. Geophys. Res., 101(A11), 25713–25729, 2001.; Newell, P. T. and Meng, C.-I.: Mapping the dayside ionosphere to the magnetosphere according to particle precipitation characteristics, Geophys. Res. Lett, 19(6), 609–612, 1992.; Akasofu, S.-I.: The development of the auroral substorm, Planet. Space Sci., 12(4), 273–282, 1964.; Antonova, E. E. and Ganushkina, N. Yu.: Inner magnetospheric currents and their role in the magnetosphere dynamics, Phys. Chem. Earth (C), 25(1–2), 23–26, 2000.; Newell, P. T., Sotirelis, T., Ruohoniemi, J. M., Carbary, J. F., Liou, K., Skura, J. P., Meng, C.-I., Deehr, C., Wilkinson, D., and Rich, F. J.: OVATION: Oval variation, assessment, tracking, intensity, and online nowcasting, Ann. Geophys., 20, 1039–1047, 2002.; Öztürk, M. K. and Wolf, R. A.: Bifurcation of drift shells near the dayside magnetopause, J. Geophys. Res., 112, A07207, doi:10.1029/2006JA012102, 2007.; Shabansky, V. P. and Antonova, A. E.: Topology of particle drift shells in the Earth's magnetosphere, Geomagnetism and Aeronomy, 8, 993–997, 1968 (in Russian).; Shue, J.-H, Chao, J. K., Fu, H. C., Russell, C. T., Song, P., Khurana, K. K., and Singer, H. J.: A new functional form to study the solar wind control of the magnetopause size and shape, J. Geophys. Res., 102(A5), 9497–9511, 1997.; Sitnov, M. I., Tsyganenko, N. A., Ukho

 

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