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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3934
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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.authorallMeloni, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallLazarus, A. J.; Center for Space Research, MIT, Cambridge, USAen
dc.contributor.authorallLepping, R. P.; Laboratory for Extraterrestrial Physics, NASA/GSFC, Greenbelt, USAen
dc.date.accessioned2008-07-07T08:37:04Zen
dc.date.available2008-07-07T08:37:04Zen
dc.date.issued1999en
dc.identifier.urihttp://hdl.handle.net/2122/3934en
dc.description.abstractAn analysis of the low frequency geomagnetic field fluctuations at an Antarctic (Terra Nova Bay) and a low latitude (L'Aquila, Italy) station during the Earth's passage of a coronal ejecta on April 11, 1997 shows that major solar wind pressure variations were followed at both stations by a high fluctuation level. During northward interplanetary magnetic field conditions and when Terra Nova Bay is close to the local geomagnetic noon, coherent fluctuations, at the same frequency (3.6 mHz) and with polarization characteristics indicating an antisunward propagation, were observed simultaneously at the two stations. An analysis of simultaneous measurements from geosynchronous satellites shows evidence for pulsations at approximately the same frequencies also in the magnetospheric field. The observed waves might then be interpreted as oscillation modes, triggered by an external stimulation, extending to a major portion of the Earth's magnetosphere.en
dc.language.isoEnglishen
dc.publisher.nameEGS - Springer-Verlagen
dc.relation.ispartofAnnales Geophysicaeen
dc.relation.ispartofseries10 / 17 (1999)en
dc.subjectMagnetospheric physicsen
dc.subjectMHD waves and instabilitiesen
dc.subjectSolar wind-magnetosphere interactionsen
dc.titleThe Earth's passage of the April 11, 1997 coronal ejecta: geomagnetic field fluctuations at high and low latitude during northward interplanetary magnetic field conditionsen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber1245-1250en
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.referencesBerdichevsky, D., J.-L. Bougeret, J.-P. DelaboudinieÁ re, N. Fox, M. Kaiser, R. Lepping, D. Michels, S. Plunkett, D. Reames, M. Reiner, I. Richardson, G. Rostoker, J. Steinberg, B. Thompson, and T. von Rosenvinge, Evidence for multiple ejecta; April 7±11, 1997 ISTP Sun-Earth connection event, Geophys. Res. Lett., 25, 2473, 1998. Burlaga, L. F., Magnetic clouds, in Physics of the Inner Helio- sphere, Eds. R. Schwenn and E. Marsch, vol 2, p. 1, Springer- Verlag, Berlin Heidelberg New York 1991. Carbary, J. F., and C. I. Meng, Correlation of cusp latitude with Bz and AE (12) using nearly one year's data, J. Geophys. Res., 91, 10 047, 1986. Farrugia, C. J., M. P. Freeman, L. F. Burlaga, R. P. Lepping, and K. Takahashi, The Earth's response under continued forcing; substorm activity during the passage of an interplanetary magnetic cloud, J. Geophys. Res., 98, 7657, 1993. Farrugia, C. J., R. P. Lepping, L. F. Burlaga, A. Szabo, D. Vassiliadis, P. Stauning, and M. P. Freeman, The WIND magnetic cloud of October 18±20, 1995: implications for the magnetosphere, EOS, Trans. Am. Geophys. Un., 77 (17), S241, 1996. Francia, P., and U. Villante, Some evidence of ground power enhancements at frequencies of global magnetospheric modes at low latitude, Ann. Geophysicae, 15, 17, 1997. Francia, P., S. Lepidi, U. Villante, and A. J. Lazarus, Geomagnetic response at low latitude to multiple solar wind pressure variations, in press. J. Geophys. Res., 1999. Gosling, J. T., Coronal mass ejections and magnetic ¯ux ropes in interplanetary space, in Physics of Magnetic Flux Ropes, Geophys. Monogr. Ser., vol 58, Eds. C.T. Russell et al., 343, AGU, Washington, D.C., 1990. Lepidi, S., P. Francia, U. Villante, L. J. Lanzerotti, and A. Meloni, Polarization pattern of low frequency geomagnetic ®eld ¯uctu- ations (0.8±3.6 mHz) at high and low latitude, J. Geophys. Res., 104, 305, 1999. Lepping, R. P., L. F. Burlaga, B. T. Tsurutani, K. W. Ogilvie, A. J. Lazarus, D. S. Evans, and L. W. Klein, The interaction of a very large interplanetary magnetic cloud with the magnetosphere and with cosmic rays, J. Geophys. Res., 96, 9425, 1991. Meloni, A., and F. Molina, Study of the S variation at L'Aquila Geomagnetic observatory, Ann. Geophysicae, 7, 387, 1989. Russell, C. T., and M. Ginskey, Sudden impulses at subauroral latitudes: response for northward interplanetary magnetic ®eld, J. Geophys. Res., 100, 23 695, 1995. Russell, C. T., M. Ginskey, and S. M. Petrinec, Sudden impulses at low latitude stations: steady state response for northward interplanetary magnetic ®eld, J. Geophys. Res., 99, 253, 1994. Samson, J. C., Three-dimensional polarization characteristics of high-latitude Pc5 geomagnetic micropulsations, J. Geophys. Res., 77, 6145, 1972. Sibeck, D. G., W. Baumjohann, R. C. Elphic, D. H. Fair®eld, J. F. Fennell, W. B. Gail, L. J. Lanzerotti, R. E. Lopez, H. Luehr, A. T. Y. Lui, C. G. Maclennan, R. W. McEntire, T. A. Potemra, T. J. Rosenberg, and K. Takahashi, The magnetospheric response to 8-minute period strong amplitude upstream pressure varia- tions, J. Geophys. Res., 94, 2505, 1989. Southwood, D. J., Some features of ®eld line resonances in the magnetosphere, Planet. Space Sci., 22, 483, 1974. Villante, U., S. Lepidi, P. Francia, P. Palangio, and A. Meloni, Long period geomagnetic ®eld ¯uctuations at Terra Nova Bay (Antarctica), Geophys. Res. Lett., 24, 1443, 1997. Villante, U., P. Francia, S. Lepidi, M. De Lauretis, E. Pietropaolo, L. Cafarella, A. Meloni, A. J. Lazarus, R. P. Lepping, and F. Mariani, Geomagnetic ®eld variations at low and high latitude during the January 10±11, 1997 magnetic cloud, Geophys. Res. Lett., 25, 2593, 1998. 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.en
dc.description.journalTypeN/A or not JCRen
dc.description.fulltextreserveden
dc.contributor.authorLepidi, S.en
dc.contributor.authorFrancia, P.en
dc.contributor.authorVillante, U.en
dc.contributor.authorMeloni, A.en
dc.contributor.authorLazarus, A. J.en
dc.contributor.authorLepping, R. P.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.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentCenter for Space Research, MIT, Cambridge, USAen
dc.contributor.departmentLaboratory for Extraterrestrial Physics, NASA/GSFC, Greenbelt, USAen
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.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia-
crisitem.author.deptCenter for Space Research, MIT, Cambridge, USA-
crisitem.author.deptLaboratory for Extraterrestrial Physics, NASA/GSFC, Greenbelt, USA-
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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