Abstract
Geomagnetic pulsation in the Pc3-4 bands have been studied at high Antarctic latitudes during the local summer. The statistical relation between the occurrence probability of Pc3 and Pc4 pulsations and the solar wind (SW) and IMF parameters has been revealed by verifying the hypothesis that an indication is identical in two distributions. Different dependences of the occurrence probability of high-latitude Pc3 and Pc4 pulsations on the IMF value and orientation and SW density and velocity have been found out. It has been indicated that these dependences remain unchanged in the range of geomagnetic latitudes from 66° to 87°. It has been established that the Pc3 observation probability at small (20°–50°) IMF cone angles (θ = cos−1(B x/|B|)) is a factor of 1.5 higher than the average statistical probability and depends on the IMF value, which confirms the hypothesis that the Pc3 source is the turbulent region upstream of the magnetospheric quasiparallel low shock. On the contrary, the probability of occurrence of Pc4 weakly depends on the IMF cone angle and is maximal at θ ∼ 0° and ∼90°. With increasing negative B z values, the generation probability increases in the Pc4 band and tends to decrease in the Pc3 band. It has been found out for the first time that the dependence of the Pc4 occurrence probability on the IMF clock angle (ϕ = tan−2 (B/B z) is identical in the regions of projections of closed and open field lines, whereas this dependence is different for Pc3. In the region of projections of closed field lines, the Pc3 occurrence probability increases at B z < 0 and B y > 0 (the condition under which the cusp shifts on the dawn side) and at B y < 0 and B z > 0 (which is typical of the formation of the low-latitude boundary plasma sheet). In the region of projections of open field lines such a probability increases at B y < 0 and B z < 0 (which results in the formation of the high-latitude boundary plasma sheet). Based on the discovered regularities, the conclusion has been made that the sources of generation of high-latitude Pc3 and Pc4 pulsations are different.
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References
O. V. Bolshakova and V. A. Troitskaya, “Relation between the IMF Direction and Stable Oscillation Mode,” Dokl. Akad. Nauk SSSR 180(2), 343–346 (1968).
P. J. Chi, C. T. Russell, R. M. Bloom, and H. J. Singer, “Solar Wind Control of Ultralow-Frequency Wave Activity at L = 3,” J. Geophys. Res. 103, 29 467–29 477 (1998).
O. M. Chugunova, V. A. Pilipenko, M. Engebretson, and A. Rodger, “Statistical Characteristics of the Spatial Distribution of Pc3-4 Geomagnetic Pulsations at High Latitudes in the Antarctic Regions,” Geomagn. Aeron. 46(1), 68–77 (2006) [Geomagn. Aeron. 46, 64–73 (2006)].
O. M. Chugunova, V. A. Pilipenko, and M. Engebretson, “Appearance of Quasi-Monochromatic Pc3-4 Pulsations in the Polar Cap,” Geomagn. Aeron. 44(1), 47–54 (2004) [Geomagn. Aeron. 44, 42–48 (2004)].
M. J. Engebretson, R. K. Cobian, J. L. Posch, and R. L. Arnoldy, “A Conjugate Study of Pc3-4 Pulsations at Cusp Latitudes: Is There a Clock Angle Effect?,” J. Geophys. Res. 105A, 15 965–15 980 (2000).
M. J. Engebretson, C.-I. Meng, R. L. Arnoldy, and L. J. Cahill, Jr., “Pc3 Pulsations Observed near the South Polar Cap,” J. Geophys. Res. 91, 8909–8918 (1986).
J. Fleiss, Statistical Methods for Rates and Proportions (Wiley, New York, 1981; Finansy Statistika, Moscow, 1989).
E. W. Greenstadt and J. V. Olson, “Geomagnetic Pulsation Signals and Hourly Distribution of IMF Orientation,” J. Geophys. Res. 84(4), 1493–1498 (1979).
A. V. Guglielmi, B. I. Klain, A. S. Potapov, and A. R. Polyakov, “Amplitude and Phase Fluctuations of Pc3 Geomagnetic Pulsations,” Issled. Geomagn. Aeron. Fiz. Solntsa, No. 66, 38–41 (1983).
A. V. Guglielmi, T. A. Plyasova-Bakounina, and R. V. Shepetnov, “On the Relation between the Period of Pc3, 4 Geomagnetic Pulsations and the Parameters of the Medium in the Earth’s Orbit,” Geomagn. Aeron. 13(2), 382–384 (1973).
A. V. Guglielmi, “Diagnostics of the Magnetosphere and Interplanetary Medium by Means of Pulsations,” Space Sci. Res. 16(3), 331–345 (1974).
M. S. Kovner, V. V. Lebedev, T. A. Plyasova-Bakounina, and V. A. Troitskaya, “On the Generation of Low-Frequency Waves in the Solar Wind in the Front of the Bow Shock,” Planet. Space Sci. 26, 261–267 (1976).
N. S. Kremer, Probability Theory and Mathematical Statistics (Yuniti-Dana, Moscow, 2003).
G. Le and C. T. Russell, “Solar Wind Control of Upstream Wave Frequency,” J. Geophys. Res. 101, 2571–2575 (1996).
I. R. Mann, A. N. Wright, K. J. Mills, and V. M. Nakariakov, “Excitation of Magnetospheric Waveguide Modes by Magnetosheath Flows,” J. Geophys. Res. 104, 333–353 (1999).
K. Morrison, “On the Nature of Pc3 Pulsation at L = 4 and the Solar Wind Dependence,” Planet. Space Sci. 7, 1017–1023 (1991).
T. Odera, “Solar Wind Controlled Pulsations: A Review,” Rev. Geophys. 24, 55–74 (1986).
P. V. Ponomarenko, B. J. Fraser, F. W. Menk, et al., “Cusp-Latitude Pc3 Spectra: Band-Limited and Power-Law Components,” Ann. Geophys. 20, 1–13 (2002).
C. Russell, J. Luhmann, T. Odera, and W. Stuart, “The Rate of Occurrence of Dayside Pc3, 4 Pulsations: The L-Value Dependence of the IMF Cone Angle Effect,” Geophys. Res. Lett. 10(8), 663–668 (1983).
M. O. Ryazantseva, G. N. Zastenker, O. V. Khabarova, and D. Richardson, “Sharp Boundaries of the Solar Wind Plasma Structures and Pressure Balance,” Kosm. Issled. 43(3), 157–164 (2005).
J.-J. Schott, N. G. Kleimenova, and O. V. Kozyreva, “Amplitudes of Pc3 and Pc4 Geomagnetic Pulsations and the Plasmapause Projection (Kerguelen Observatory),” Geomagn. Aeron. 44(5), 616–623 (2004) [Geomagn. Aeron. 44, 567–573 (2004)].
H. J. Singer, C. T. Russell, M. G. Kivelson, et al., “Evidence of Control of Pc3, 4 Magnetic Pulsation by the Solar Wind Velocity,” Geophys. Res. Lett. 4, 377–379 (1977).
P. Song and C. T. Russell, “Model of the Formation of the Low-Latitude Boundary Layer for Strongly Northward Interplanetary Magnetic Field,” J. Geophys. Res. 97, 1411–1420 (1992).
K. Takahashi, R. L. McPherron, E. W. Greenstadt, and C. A. Neeley, “Factors Controlling the Occurrence of Pc3 Magnetic Pulsations at Synchronous Orbit,” J. Geophys. Res. 86, 5472–5484 (1981).
O. A. Troshichev, A. L. Kotikov, E. M. Shishkina, et al., “DPY Currents in the Cusp/Cleft Region: A Crucial Role of Southward Interplanetary Magnetic Field,” J. Geophys. Res. 102A, 4777–4785 (1997).
U. Villante, M. Villante, and D. De Sanctis, “An Analysis of Pc3 and Pc4 Pulsations at Terra Nova Bay (Antarctica),” Ann. Geophys. 18, 1412–1421 (2000).
U. Villante, S. Lepidi, P. Francia, et al., “Pc3 Pulsations during Variable IMF Conditions,” Ann. Geophys. 17, 490–496 (1999).
A. Wolf, E. Kamen, L. J. Lanzerotti, et al., “ULF Geomagnetic Power at Cusp Latitudes in Response to Upstream Solar Wind Condition,” J. Geophys. Res. 92A, 168–174 (1987).
A. Wolf, L. J. Lanzerotti, and C. G. Maclennan, “Dependence of Hydromagnetic Energy on Solar Wind Velocity and Interplanetary Magnetic Field Direction,” J. Geophys. Res. 85, 114–118 (1980).
K. A. Yumoto, A. Wolf, T. Teresawa, et al., “Dependence of Pc3 Magnetic Energy Spectra at South Pole on Upstream Parameters,” J. Geophys. Res. 92, 12437–12443 (1987).
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Original Russian Text © O.M. Chugunova, VA. Pilipenko, M. Engebretson, A. Rodger, 2007, published in Geomagnetizm i Aeronomiya, 2007, Vol. 47, No. 2, pp. 219–229.
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Chugunova, O.M., Pilipenko, V.A., Engebretson, M. et al. Statistical relations between the probability of occurrence of Pc3-4 pulsations at high latitudes in the antarctic regions and the solar wind and IMF parameters. Geomagn. Aeron. 47, 205–215 (2007). https://doi.org/10.1134/S0016793207020089
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DOI: https://doi.org/10.1134/S0016793207020089