Abstract
It has recently become apparent that auroral radars are powerful tools for the investigation of ULF pulsations in the Pc5 range. Auroral radar observations of pulsation effects in the ionosphere are reviewed. The Stare radar system is described and its measurements of the pulsation electric field in the ionosphere outlined. It has been established that this electric field is entirely consistent with the field of a hydro-magnetic field-line resonance. The rotation of the pulsation magnetic field through 90° by the ionosphere is confirmed. Statistical studies of occurrence show some consistency with the behaviour expected for solar-wind driven instabilities on the magneto- pause. The use of Stare data to deduce equatorial plasma density, and height integrated ionospheric conductivities is also discussed. These measurements have been used to estimate energy input into the magnetosphere.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Brooks, D., Radio auroral echoes associated with sudden commencements and their possible use in measurements of magnetospheric ion densities, J. Atmos. Terr. Phys., 29, 589–597, 1967.
Buneman, O., Excitation of field aligned sound waves by electron streams, Phys. Rev. Lett., 10, 285–287, 1963.
Cahill, L., R. A. Greenwald, and E. Nielsen, Auroral radar and rocket double-probe observations of the electric field across the Harang discontinuity, Geophys. Res. Lett., 5, 687–690, 1978.
Chen, L. and A. Hasegawa, A theory of long-period magnetic pulsations, 1, Steady state excitation of field line resonance, J. Geophys. Res., 79, 1024–1032, 1974.
Ecklund, W. L., B. B. Balsley, and D. A. Carter, A preliminary comparison of F-region plasma drifts and E region irregularity drifts in the auroral zone, J. Geophys. Res., 82, 195–197, 1977.
Farley, D. T., A plasma instability resulting in field-aligned irregularities in the ionosphere, J. Geophys. Res., 68, 6083–6097, 1963.
Greenwald, R. A., Diffuse radar aurora and the gradient drift instability, J. Geophys. Res., 79, 4807–4810, 1974.
Greenwald, R. A., Diffuse radar aurora and the gradient drift instability, J. Geophys. Res., 79, 4807–4810, 1974.
Greenwald, R. A., W. Weiss, E. Nielsen, and N. P. Thomson, Stare: A new radar auroral backscatter experiment in northern Scandinavia, Radio Sci, 13, 1021–1039, 1978.
Hughes, W. J., The effect of the atmosphere and ionosphere on long period magnetospheric micro-pulsations, Planet. Space Sci., 22, 1157–1172, 1974.
Hughes, W. J. and D. J. Southwood, The screening of micropulsation signals by the atmosphere and ionosphere, J. Geophys. Res., 81, 3234–3240, 1976a.
Hughes, W. J. and D. J. Southwood, An illustration of modification of pulsation structure by the iono¬sphere, J. Geophys. Res., 81, 3241–3247, 1976b.
Hughes, W. J., R. M. McPherron, and C. T. Russell, Multiple satellite observations of pulsation resonance structure, J. Geophys. Res., 82, 492–498, 1977.
Hughes, W. J., R. L. McPherron, and J. N. Barfield, Geomagnetic pulsations observed simultaneously on three geo-stationary satellites, J. Geophys. Res., 83, 1109–1116, 1978.
Hughes, W. J., R. L. McPherron, J. N. Barfield, and B. H. Mank, A compressional Pc 4 pulsation observed by three satellites in geo-stationary orbit near local midnight, Planet. Space Sci., 27, 821–840, 1979.
Inoue, Y., Wave polarization of geomagnetic pulsations observed in high latitudes on the earth’s surface, J. Geophys. Res., 78, 2959–2976, 1973.
Kaneda, E., S. Kokubun, T. Oguti, and T. Nagata, Auroral radar echoes associated with Pc 5, Rep. Ionos. Space. Res. Japan, 18, 165–172, 1964.
Keys, J. G., Pulsating auroral radar echoes and their possible hydromagnetic association, J. Atmos. Terr. Phys., 27, 385–393, 1965.
McDiarmid, D. R. and A. G. McNamara, Periodically varying radar aurora, Ann. Geophys., 28, 433–441, 1972.
McDiarmid, D. R. and A. G. McNamara, Radio aurora, storm sudden commencements, and hydromagnetic waves, Can. J. Phys., 51, 1261–1265, 1973.
Nishida, A., Ionospheric screening effect and storm sudden commencements, J. Geophys. Res., 69, 1861–1874, 1964.
Oguti, T., K. Hayashi, S. Kokubun, K. Tsuruda, T. Watanabe, and R. E. Horita, Auroral and magnetic pulsations, in Magnetospheric Study 1979, Proceedings of the International Workshop on Selected Topics of Magnetospheric Physics, pp. 111–115, Japanese IMS Committee, Tokyo, 1979.
Orr, D. and J. A. D. Mathew, The variation of geomagnetic pulsation periods with latitude and plasma- pause, Planet. Space Sci., 19, 897–905, 1971.
Rogister, A. and N. D’Angelo, Type II irregularities in the equatorial electrojet, J. Geophys. Res., 75, 3879–3887, 1970.
Samson, J. C. and G. Rostoker, Latitude dependent characteristics of high-latitude Pc 4 and Pc 5 micro– pulsations, J. Geophys. Res., 77, 6133–6144, 1972.
Samson, J. C., J. A. Jacobs, and G. Rostoker, Latitude dependent characteristics of long period geo¬magnetic micropulsations, J. Geophys. Res., 76, 3675–3683, 1971.
Southwood, D. J., Some features of field line resonances in the magnetosphere, Planet. Space Sci., 22, 483–491, 1974.
Sudan, R. N., J. Akinrimisi, and D. T. Farley, Generation of small scale irregularities in the equatorial electrojet, J. Geophys. Res., 78, 240–248, 1973.
Unwin, R. S., The morphology of the v.h.f. radio aurora at sunspot maximum, 2, The behaviour of different echo types, J. Atmos. Terr. Phys., 28, 1183–1194, 1966.
Unwin, R. S. and F. B. Knox, Radio aurora and electric fields, Radio Sci. 6, 1061–1077, 1971.
Walker, A. D. M., Modelling of Pc 5 pulsation structure in the magnetosphere, Planet. Space Sci., 28, 213–223, 1980.
Walker, A. D. M., Modelling of Pc 5 pulsation structure in the magnetosphere, Planet. Space Sci., 28, 213–223, 1980.
Walker, A. D. M., R. A. Greenwald, W. F. Stuart, and C. A. Green, Resonance region of a Pc 5 micropulsation examined by a dual auroral radar system, Nature, 273, 646–649, 1978.
Walker, A. D. M., R. A. Greenwald, W. F. Stuart, and C. A. Green, Stare auroral radar observations of Pc 5 geomagnetic pulsations, J. Geophys. Res., 84, 3373–3388, 1979.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1981 Center for Academic Publications Japan
About this chapter
Cite this chapter
Walker, A.D.M., Greenwald, R.A. (1981). Pulsation Structure in the Ionosphere Derived from Auroral Radar Data. In: Southwood, D.J. (eds) ULF Pulsations in the Magnetosphere. Advances in Earth and Planetary Sciences, vol 11. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-8426-4_7
Download citation
DOI: https://doi.org/10.1007/978-94-009-8426-4_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-009-8428-8
Online ISBN: 978-94-009-8426-4
eBook Packages: Springer Book Archive