Abstract
The results of the Cosmos-900 satellite observ ations of plasma density inhomogeneities in the geomagnetic equator region and the longitudinal distributions of the equatorial spread-F, according to the Intercosmos-19 satellite data are presented. It is show n that the dependence of radiosignal propagation in the ionosphere on geophysical parameters is related to development of the electrostatic instability of the inhomo-geneous ionospheric plasma. The longitudinal dependence of the spread-F, can reflect the influence of the energetic sources, located outside the ionospheric layer that scatters a radio pulse, on the ionosphere. The manifestation of the longitudinal effect in the equatorial spread-F, in the Atlantic region can be explained by the influence of the cone instability on the plasma electrodynamics in the South Atlantic geomagnetic anomaly.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L. A. Artsimovich and R. Z. Sagdeev, Plasma Physics for Physicists, (Atomizdat, Moscow, 1979) [in Russian].
A. P. Belyashin, G. L. Gdalevich, V. I. Zhdanov, and V. D. Zhdanov, “Measuring Ionospheric Plasma Density Inhomogeneities Using a “COSMOS-900” Trap with the Outer Grid Floating Potential,” in Space Instrument Making, (Nauka, Moscow, 1982), pp. 89–99 [in Russian].
N. N. Ben’kova, G. L. Gdalevich, A. Kh. Depueva, et al., “Relation between Longitudinal Distributions of Electron Density and Spread-F, at Equatorial Latitudes,” Geomagn. Aeron. 30(3), 503–504 (1990).
P. A. Bernhardt, “Quasi-Analytic Models for Density Bubbles and Plasma Clouds in the Equatorial Ionosphere: Closed Form Solutions for Electric Fields and Potentials,” J. Geophys. Res. 112, A01302 (2007).
B. E. Brunelli and A. A. Namgaladze, Physics of the Iono, sphere, (Nauka, Moscow, 1988) [in Russian].
N. S. Erokhin and L. A. Mikhailovskaya, “Certain Features of Exactly Solvable Models of Interaction between Waves and an Inhomogeneous Medium,” in Proceedings of the MSS-04 International Conference “Wave Transformation, Coherent Structures, and Turbulence”,, Ed. by N. S. Erokhin, E. Ya. Kogan, V. M. Balebanov,et al., (URSS, Moscow, 2004), pp. 42–47 [in Russian].
N. S. Erokhin and S. A. Shalimov, “Ionospheric Effects Initiated by Intense Atmospheric Vortices,” in Proceedings of the MSS-04 International Conference “Wave Transformation, Coherent Structures, and Turbulence”,, Ed. by N. S. Erokhin, E. Ya. Kogan, V. M. Balebanov, et al., (URSS, Moscow, 2004), pp. 426–434 [in Russian].
G. L. Gdalevich, N. I. Izhovkina, V. D. Ozerov, N. Bankov, S. Chapkanov, and L. Todorieva, “Plasma Inhomogeneities in an Unstable Outer Ionosphere according to the Intercosmos-Bulgaria-1300 Satellite Data,” Kosm. Issled. 44(5), 438–443 (2006).
G. L. Gdalevich, V. F. Gubsky, N. I. Izhovkina, and V D. Ozerov, “Formation of Irregular Structures in Ionospheric Plasma above the South Atlantic Geomagnetic Anomaly Due to Plasma Loss-Cone Instability,” Geomagn. Aeron. 40(2), 47–52 (2000) [Geomagn. Aeron. 40, 179–183 (2000)].
G. L. Gdalevich, V. F. Gubsky, N. I. Izhovkina, and V D. Ozerov, “Experiment and Theory of Plasma Inhomogeneities in Mid-Latitude Ionosphere,” J. Atmos. Solar-Terr. Phys. 60(2), 247–252 (1998).
B. N. Gershman, E. S. Kazimirovsky, V. D. Kokourov, and N. A. Chernobrivkina, Spread-F Phenomenon in the Ionosphere,, Ed. by N. M. Erofeev(Nauka, Moscow, 1987) [in Russian].
E. Gossard and W. Hooke, Waves in the Atmosphere, (Elsevier, Amsterdam, 1978; Mir, Moscow, 1975).
G. Haerendel,“Results from Barium Cloud Releases in the Ionosphere and Magnetosphere,” Space Res. 13, 601–617(1973).
G. Haerendel, H. Bauer, S. Cakir, et al., “Colored Bubbles: An Experiment for Triggering Equatorial Spread-F,” in Active Experiments in Space, (Eur. Space Agency Spec. Publ., 1983).
C. O. Hines and C. A. Reddy, “On the Propagation of Atmospheric Gravity Waves through Regions of Wind Shear,” J. Geophys. Res. 72(3), 1015–1034 (1967).
N. I. Izhovkina, A. T. Karpachev, I. S. Prutensky, et al., “Heating and Decay of Inhomogeneities in the Electrostatically Unstable Plasma of the Topside ionosphere,” Geomagn. Aeron. 41(4), 491–494 (2001) [Geomagn. Aeron. 41, 469-473 (2001)].
N. I. Izhovkina, A. T. Karpachev, and S. A. Pulinets, “Structural Features of the Upper Dayside Ionosphere according to the Intercosmos-19 Satellite Data,” Kosm. Issled. 34(2), 125–129 (1996).
N. I. Izhovkina, V. V. Afonin, A. T. Karpachev, I. S. Prutensky, and S. A. Pulinets, “Structure of the Ionospheric Trough for Different Geomagnetic Disturbance Levels and the Sources of Plasma Heating in the Upper Day-side Ionosphere,” Geomagn. Aeron. 39(4), 39–43 (1999) [Geomagn. Aeron. 39, 438-442 (1999)].
C. F. Kennel, “Low-Frequency Whistler Mode,” Phys. Fluids 9(11), 2190–2209 (1966).
A. V. Mikhailovskii, Plasma Instability Theory. Vol. 2. Inhomogeneous Plasma Instabilities, (Atomizdat, Moscow, 1977) [in Russian].
S. S. Moiseev, R. Z. Sagdeev, A. V. Tur, and V. V. Yanovskii,“On Frozen4n Integrals and Lagrange Invariants in a Hydrodynamic Approximation,” Zh. Eksp. Teor. Fiz., No. 1(7), 215–226(1982).
S. S. Moiseev, R. Z. Sagdeev, A. V. Tur, and V. V. Yanovskii, “Theory of Large-Scale Structure Origination in Hydrodynamic Turbulence,” Zh. Eksp. Teor. Fiz. 85(6-12), 1979–1987(1983).
R. S. Narcisi and E. P. Szusczewicz, “Direct Measurements of Electron Density, Temperature and Ion Composition in an Equatorial Spread-F, Ionosphere,” J. Atmos. Terr. Phys. 43(5-6), 463–471 (1981).
M. V. Nezlin and G. P. Chernikov, “Analogy of Drift Vortices in Plasma and Geophysical Hydrodynamics,” Fiz. Plazmy 21(11), 975–999 (1995).
V. D. Ozerov, “Properties of High-Latitude Ionospheric Inhomogeneities Based on Cosmos 378 Ion Trap Data,” in Space Research XVI,, Ed. by M. J. Rycroft (Akademia-Verlag, Berlin, 1976), pp. 479–484.
J. G. Roederer, Dynamics of Geomagnetically Trapped Radiation, (Springer-Verlag, Berlin, 1970; Mir, Moscow, 1972) [in Russian].
J. Rottger, “Equatorial Spread-F, by Electric Fields and Atmospheric Gravity Waves Generated by Thunderstorms,” J. Atmos. Terr. Phys. 43(5-6), 453–462 (1981).
R. Ruster, “Solution of the Coupled Ionospheric Continuity Equations and the Equations of Motion for the Ions, Electrons, and Neutral Particles,” J. Atmos. Terr. Phys. 33(2), 137–147 (1971).
N. M. Shutte and N. I. Izhovkina, “On Properties of Electrostatic Turbulence and Observations of Non-Max-wellian Distributions of Charged Particle Fluxes in the Low-Latitude Magnetosphere,” Kosm. Issled. 29(3), 422–426(1991).
G. V. Vasil’ev, L. P. Goncharov, Yu. V. Kushnerevskii, V V. Migulin, and M. D. Fligel’, “The IS-338 Satellite System of Impulsive Sounding the Ionosphere,” in Equipment for Studying the Outer Ionosphere,, Ed. by G. V. Vasil’ev and Yu. V. Kushnerevskii (IZMIRAN, Moscow, 1980), pp. 13–29 [in Russian].
G. V. Vasil’ev, V. P. Goncharov, and M. D. Fligel’, “Errors in Measuring the Equivalent Height of Reflection during Sounding the Ionosphere on the “Intercosmos-19” Satellite,” in Studying the Structure and Wave Properties of the Near-Earth Plasma,, Ed. by D. S. Fligel’ (IZMIRAN, Moscow, 1985), pp. 87–94 [in Russian].
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © G.L. Gdalevich, A.Kh. Depueva, N.I. Izhovkina, V.D. Ozerov, 2010, published in Geomagnetizm i Aeronomiya, 2010, Vol. 50, No. 1, pp. 72–81.
Rights and permissions
About this article
Cite this article
Gdalevich, G.L., Depueva, A.K., Izhovkina, N.I. et al. Unstable plasma irregular structures in the topside ionosphere and spread-F . Geomagn. Aeron. 50, 69–78 (2010). https://doi.org/10.1134/S0016793210010093
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0016793210010093