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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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dc.contributor.authorallLepidi, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallFrancia, P.; Dipartimento di Fisica, Università dell'Aquila, L'Aquila, Italyen
dc.contributor.authorallVillante, U.; Dipartimento di Fisica, Università dell'Aquila, L'Aquila, Italyen
dc.contributor.authorallLanzerotti, L. J.; Bell Laboratories, Lucent Technologies, Murray Hill, New Jersyen
dc.contributor.authorallMeloni, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.date.accessioned2008-07-07T08:36:17Zen
dc.date.available2008-07-07T08:36:17Zen
dc.date.issued1999-01-01en
dc.identifier.urihttp://hdl.handle.net/2122/3933en
dc.description.abstractA 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.en
dc.language.isoEnglishen
dc.publisher.nameAGUen
dc.relation.ispartofJournal of Geophysical Researchen
dc.relation.ispartofseriesA1 / 104 (1999)en
dc.subjectPolarization patternen
dc.subjectlow-frequency geomagnetic field fluctuationsen
dc.subjectAntarcticaen
dc.subjectL'Aquila, Italyen
dc.titlePolarization pattern of low-frequency geomagnetic field fluctuations (0.8-3.6 mHz) at high and low latitudeen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber305-310en
dc.subject.INGV01. Atmosphere::01.03. Magnetosphere::01.03.99. General or miscellaneousen
dc.subject.INGV01. Atmosphere::01.03. Magnetosphere::01.03.04. Structure and dynamicsen
dc.relation.referencesChen, 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.en
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorLepidi, S.en
dc.contributor.authorFrancia, P.en
dc.contributor.authorVillante, U.en
dc.contributor.authorLanzerotti, L. J.en
dc.contributor.authorMeloni, A.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentDipartimento di Fisica, Università dell'Aquila, L'Aquila, Italyen
dc.contributor.departmentDipartimento di Fisica, Università dell'Aquila, L'Aquila, Italyen
dc.contributor.departmentBell Laboratories, Lucent Technologies, Murray Hill, New Jersyen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
item.openairetypearticle-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextrestricted-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptBell Laboratories, Lucent Technologies, Murray Hill, New Jersy-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.orcid0000-0002-5692-2560-
crisitem.author.orcid0000-0002-3630-7958-
crisitem.author.orcid0000-0003-1155-401X-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent01. Atmosphere-
crisitem.classification.parent01. Atmosphere-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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