A possible explanation for rapid, large-scale ionospheric responses to southward turnings of the IMF

Geophysical Research Letters

Volumn 26, Issue 20, 1999, Pages 3197-3200

  Shepherd, S G ^a   Greenwald, R A ^a   Ruohoniemi, J M ^a  

^a JOHNS HOPKINS UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

MAGNETIC FIELD EFFECTS; MAGNETIC SHIELDING; SOLAR RADIATION;

INTERPLANETARY MAGNETIC FIELDS (IMF); MAGNETOPAUSE; SOLAR WIND;

IONOSPHERE;

IONOSPHERE;

EID: 0033569087     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/1999GL010670     Document Type: Article

References (15)

1. Cowley, S. W. H., and M. Lockwood, Excitation and decay of solar wind-driven flows in the magnetosphere-ionosphere system, Ann. Geophysicae, 10, 103, 1992.
2. Etemadi, A., S. W. H. Cowley, M. Lockwood, B. J. I. Bromage, D. M. Willis, and H. Lühr, The dependence of high-latitude dayside ionospheric flows on the north-south component of the IMF: A high time resolution correlation analysis using the EISCAT 'POLAR' and AMPTE UKS and IRM data, Planet. Space Sci., 36, 471, 1988.
3. y, J. Geophys. Res., 95, 8057, 1990.
4. Greenwald, R. A., W. A. Bristow, G. J. Sofko, C. Senior, J.-C. Cerisier, and A. Szabo, Super Dual Auroral Radar Network radar imaging of dayside high-latitude convection under north-ward interplanetary magnetic field: Toward resolving the distorted two-cell versus multicell controversy, J. Geophys. Res., 100, 19,661, 1995.
5. Lockwood, M., A. P. van Eyken, B. J. I. Bromage, D. M. Willis, and S. W. H. Cowley, Eastward propagation of a plasma convection enhancement following a southward turning of the interplanetary magnetic field, Geophys. Res. Lett., 13, 72, 1986.
6. Nishida, A., and K. Maezawa, Two basic modes of interaction between the solar wind and the magnetosphere, J. Geophys. Res., 76, 2254, 1971.
7. Peredo, M., J. A. Slavin, E. Mazur, and S. A. Curtis, Three-dimensional position and shape of the bow shock and their variation with Alfvènic, sonic and magnetosonic Mach numbers and interplanetary magnetic field orientation, J. Geophys. Res., 100, 7907, 1995.
8. Ridley, A. J., G. Lu, C. R. Clauer, and V. O. Papitashvili, Ionospheric convection during nonsteady interplanetary magnetic field conditions, J. Geophys. Res., 102, 14,563, 1997.
9. Ridley, A. J., G. Lu, C. R. Clauer, and V. O. Papitashvili, A statistical study of the ionospheric convection response to changing interplanetary magnetic field conditions using the assimilative mapping of ionospheric electrodynamics technique, J. Geophys. Res., 103, 4023, 1998.
10. z and solar wind dynamic pressure, J. Geophys. Res., 98, 21,421, 1993.
11. Ruohoniemi, J. M., and K. B. Baker, Large-scale imaging of high-latitude convection with Super Dual Auroral Radar Network HF radar observations, J. Geophys. Res., 103, 20,797, 1998.
12. Ruohoniemi, J. M., and R. A. Greenwald, The response of high-latitude convection to a sudden southward IMF turning, Geophys. Res. Lett., 25, 2913, 1998.
13. Saunders, M. A., M. P. Freeman, D. J. Southwood, S. W. H. Cowley, M. Lockwood, J. C. Samson, C. J. Farrugia, and T. J. Hughes, Dayside ionospheric convection changes in response to long-period interplanetary magnetic field oscillations: Determination of the ionospheric phase velocity, J. Geophys. Res., 97, 19,373, 1992.
14. Spreiter, J. R., and S. S. Stahara, A new predictive model for determining solar wind-terrestrial planet interactions, J. Geophys. Res., 85, 6769, 1980.
15. Taylor, J. R., et al., SuperDARN studies of the ionospheric convection response to a northward turning of the interplanetary magnetic field, Ann. Geophysicae, 16, 549, 1998.