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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3933

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Title: Polarization pattern of low-frequency geomagnetic field fluctuations (0.8-3.6 mHz) at high and low latitude
Authors: Lepidi, S.*
Francia, P.*
Villante, U.*
Lanzerotti, L. J.*
Meloni, A.*
Keywords: Polarization pattern
low-frequency geomagnetic field fluctuations
Antarctica
L'Aquila, Italy
Issue Date: 1-Jan-1999
Publisher: AGU
Title of journal: Journal of Geophysical Research
Series/Report no.: A1 / 104 (1999)
Abstract: A statistical analysis of the polarization pattern of low-frequency geomagnetic field fluctuations (0.8-3.6 mHz) covering the entire 24-hour interval has been performed at an Antarctic station (Terra Nova Bay) and a low-latitude station (L'Aquila, Italy) during the entire 1995. The results show a complex pattern in which, in agreement with predictions, four polarization reversals occur at high latitude during the local day. A comparison with another Antarctic station, McMurdo, during a shorter interval in 1994 confirms these results. At low latitude the polarization sense in the afternoon reverses with respect to the morning, but the reversal is delayed by a few hours after the expected local noon. In Antarctica the polarization pattern does not show any dependence on frequency and season, while at L'Aquila it is better defined for frequencies below ≈2 mHz and during local summer.
URI: http://hdl.handle.net/2122/3933
Appears in Collections:Papers Published / Papers in press
01.03.99. General or miscellaneous
01.03.04. Structure and dynamics

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  • 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, 1974.
  • Fowler, R. A., B. J. Kotick, and R. D. Elliot, Polarization analysis of
  • natural and artificially induced geomagnetic micropulsationsJ, .
  • Geophys. Res., 72, 2871, 1967.
  • Harrold, B. G., and J. C. Samson, Standing ULF modes of the
  • magnetosphereA: theory, Geophys.R es. Lett., 19, 1811, 1992.
  • Hughes,W . J., MagnetosphericU LF waves: A tutorialw ith a historical
  • perspective, in Solar Wind Sources of Magnetospheric Ultra-Low-
  • Frequency Waves, Geophys. Monogr. Ser., vol. 81, edited by M. J.
  • Engebretsone t al., AGU, Washington,D .C., 1994.
  • Hughes, W. J., and D. J. Southwood, The screening of micropulsation
  • signalsb y the atmospherea nd the ionosphereJ, . Geophys.R es., 81,
  • 3234, 1976.
  • Kivelson, M. G., and D. J. Southwood, Resonant ULF waves: A new
  • interpretationG, eophysR. es.L ett., 12, 49, 1985.
  • Lanzerotti, L. J., L. V. Medford, C. G. Maclennan, T. Hasegawa, M. H.
  • Acuna, and S. R. Dolce, Polarization characteristics of
  • hydromagnetic waves at low geomagnetic latitudes, J. Geophys.
  • Res., 86, 5500, 1981.
  • MeloniA, ., F. MolinaP, . PalangiQo,. Taccettia, ndA . De Santis,
  • Automatic digital recording of geomagnetic elements by means of a
  • proton precession magnetometer, Geophys. Surv., 7, 339, 1984.
  • Meloni, A., A. De Santis, A. Morrelli, P. Palangio, G. Romeo, E. Bozzo,
  • and G. Caneva, The geophysical observatory at Terra Nova Bay, in
  • Recent Progress in Antarctic Earth Science, edited by Y. Yoshida et
  • al., p. 585, Terrapub, Tokyo, 1992.
  • Olson J. V., and G. Rostoker, Longitudinal phase variations of Pc4-5
  • micropulsationsJ, . Geophys.R es., 83, 2481, 1978.
  • Poulter, E. M., W. Allan, G. J. Bailey, and R. J. Moffet, On the diurnal
  • period variation of mid-latitudeU LF pulsationsP, lanet. Space Sci.,
  • 32, 727, 1984.
  • Rostoker, G., and B. T. Sullivan, Polarization characteristics of Pc5
  • magneticp ulsationsin the dusk hemisphereP, lanet. Space Sci., 35,
  • 429, 1987.
  • Samson, J. C., Three-dimensional polarization characteristics of highlatitude
  • Pc5 geomagnetic micropulsationsJ, . Geophys. Res., 77,
  • 6145, 1972.
  • Samson, J. C., J. A. Jacobs, and G. Rostoker, Latitude-dependent
  • characteristics of long-period geomagnetic micropulsations, J.
  • Geophys. Res., 76, 3675, 1971.
  • Samson, J. C., B. G. Harrold, J. M. Ruohoniemi, R. A. Greenwald, and
  • A.D. M. Walker, Field line resonances associated with MHD
  • waveguides in the magnetosphere, Geophys. Res. Lett., 19, 441,
  • 1992.
  • Southwood, D. J., Some features of field line resonances in the
  • magnetosphereP,l anet. SpaceS ci., 22, 483, 1974.
  • Vellante M., U. Viiiante, M. De Lauretis, and P. Cerulli-Irelli, An
  • analysis of micropulsatione vents at a low-latitude station during
  • 1985, Planet. Space Sci., 37, 767, 1989.
  • Walker, A.D. M., J. M. Ruohoniemi, K. B. Baker, R. A. Greenwald, and
  • J. C. Samson, Spatial and temporal behavior of ULF pulsations
  • observed by the Goose Bay HF radar, J. Geophys. Res., 97, 12,187,
  • 1992.
  • Wright, A. N., Dispersiona nd wave couplingi n inhomogeneouMs HD
  • waveguides, J. Geophys. Res., 99, 159, 1994.
  • Ziesolleck, C. W. S., and F. H. Chamalaun, A two-dimensional array
  • studyo f low-latitude Pc5 geomagneticp ulsationsJ, . Geophys.R es.,
  • 98, 13,703, 1993.
  • Ziesolleck, C. W. S., and D. R. McDiarmid, Auroral latitude Pc5 field
  • line resonances:Q uantized frequencies,s patial characteristicsa, nd
  • diurnal variation,J . GeophysR. es., 99, 5817, 1994.
  • Ziesolleck,C . W. S., and D. R. McDiarmid, Statisticals urvey of auroral
  • latitudeP c5 spectral and polarization characteristicsJ, . Geophys.
  • Res., 100, 19,299, 1995.

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