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Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/3027
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dc.contributor.authorallCafarella, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallDi Mauro, D.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallLepidi, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallMeloni, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallPietrolungo, M.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallSantarelli, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.authorallSchott, J. J.; Ecole et Observatoire des Science de la Terre, IPG, Strasbourg, Franceen
dc.date.accessioned2007-12-07T14:32:25Zen
dc.date.available2007-12-07T14:32:25Zen
dc.date.issued2007en
dc.identifier.urihttp://hdl.handle.net/2122/3027en
dc.description.abstractAfter some short test surveys, during the 2004–2005 summer expedition in Antarctica, a geomagnetic French-Italian observatory was installed on the plateau (geographic coordinates: 75.1 S, 123.4 E; corrected geomagnetic coordinates: 88.9 S, 54.3 E; UT=LT−8) very close to the geomagnetic pole. In this paper we present some peculiarities of the daily variation as observed at this polar cap observatory during the years 2005 and 2006, taking into account the different Loyd seasons and different interplanetary magnetic field conditions. Some interesting results emerge from the analysis, confirming the dependence of the daily variation (and of the associated polar current systems) on the IMF Bz and By components. In particular the analysis showed that different Bz conditions correspond to different contribution to daily variation of ionospheric and field aligned currents, while particular By conditions lead to a time shift of the diurnal variation, indicating an asymmetry with respect to the noon meridian.en
dc.language.isoEnglishen
dc.publisher.nameCopernicusen
dc.relation.ispartofAnnales Geophysicaeen
dc.relation.ispartofseries/ 25 (2007)en
dc.subjectGeomagnetism and paleomagnetism (Time variations, diurnal to secular)en
dc.subjectMagnetospheric physics (Polar cap phenomena; Solar wind-magnetosphere interactions)en
dc.titleDaily variation at Concordia station (Antarctica) and its dependence on IMF conditionsen
dc.typearticleen
dc.description.statusPublisheden
dc.type.QualityControlPeer-revieweden
dc.description.pagenumber2045–2051en
dc.subject.INGV01. Atmosphere::01.03. Magnetosphere::01.03.99. General or miscellaneousen
dc.relation.referencesAkasofu, S. I., Ahn, B. H., and Romick, G. J.: A study of the polar current system using the IMS meridian chains of magnetometers, Space Sci. Rev., 36, 337–413, 1983. Brekke, A.: Physics of the upper polar atmosphere, John Wiley & Sons Ltd in association with Praxis Publishing Ltd, p. 491, 1997. Burch, J. L.: Rate of erosion of dayside magnetic flux based on a quantitative study of polar cusp latitude on the interplanetary magnetic field, Eos T. Am. Geophys. Un., 54, 1286–1286, 1973. Friis-Christensen, E. and Wilhjelm, J.: Polar cap currents for different directions of the interplanetary magnetic field in the Y-Z plane, J. Geophys. Res., 80, 1248–1260, 1975. Kivelson, M. G. and Russell, C. T.: Introduction to Space Physics, Cambridge University Press, p. 568, 1996. Iijima, T.: Field-aligned currents in geospace: substance and significance, Magnetospheric Current Systems, edited by: Ohtani, S.-I., Fujii, R., Hesse, M., Lysak, R. L., Gephysical Monograph, 118, 107–129, 2000. Lanzerotti, L. J., Meclennan, L. V., and Medford, L. V.: Inferred quasi-steady ionospheric neutral winds and electrical currents at 79 south latitude in austral summer condition, Geophys. Res. Lett., 21, 217–220, 1994. Lepidi, S., Cafarella, L., Francia, P., Meloni, A., Palangio, P., and Schott, J. J.: Low frequency geomagnetic field variations at Dome C (Antartica), Ann. Geophys., 21, 923–932, 2003, http://www.ann-geophys.net/21/923/2003/. Lloyd, H.: On earth-currents, and their connexion with the diurnal changes of the horizontal magnetic needle, Trans. Roy. Irish Acad., 24, 115–141, 1861. Nishida, A.: Geomagnetic diagnosis of the magnetosphere, Springer-Verlag, 1978. Park, K. S., Ogino, T., and Walker, R. J.: On the importance of antiparallel reconnection when the dipole tilt and IMF By are nonzero, J. Geophys. Res., 111, A05202, doi:10.1029/2004JA010972, 2006. Ratcliffe, J. A.: An introduction to the ionosphere and magnetosphere, Com. Uni Press, Cambridge, p. 256, 1972. Santarelli, L., Cafarella, L., Lepidi, S., Di Mauro, D., Meloni, A., and Palangio, P.: Fourteen years of geomagnetic daily variation at Mario Zucchelli Station (Antarctica), Ann. Geophys.-Italy, 50, 227–234, 2007. Stubbs, T. J., Lockwood, M., Cargill, P., Fennell, J., Grande, M., Kellett, B., Perry, C., and Rees, A.: Dawn-dusk asymmetry in particles of solar wind origin within the magnetosphere, Ann. Geophys., 19, 1–9, 2001, http://www.ann-geophys.net/19/1/2001/. Vennerstrom, S., Moretto, T., Olsen, N., Friis-Christensen, E., and Stampe, A. M.: Field aligned currents in the dayside cusp and polar cap region during northward IMF, J. Geophys. Res., 107, A009162, doi:10.1029/2001JA009162, 2002. Vennerstrom, S., Moretto, T., Rastatter, L., and Raeder, J.: Field-aligned currents during northward interplanetary magnetic field: Morphology and causes, J. Geophys. Res., 110, A06205, doi:10.1029/2004JA010802, 2005. Villante, U., Lepidi, S., Francia, P., Meloni A., and Palangio, P.: Long period geomagnetic field fluctuations at Terra Nova Bay (Antarctica), Geophys. Res. Lett., 24, 1443–1446, 1997. Yagova, N. V., Lanzerotti, L. J., Villante, U., Pilipenko, V. A., Lepidi, S., Francia, P., Papitashvili, V. O., and Rodger, A. S.: ULF Pc5-6 magnetic activity in the polar cap as observed along a geomagnetic meridian in Antarctica, J. Geophys. Res., 107, SMP22, doi:10.1029/2001JA900143, 2002. Yagova, N. V., Pilipenko, V. A., Lanzerotti, L. J., Engebretson, M. J., Rodger, A. S., Lepidi S., and Papitashvili, V. O.: Two-dimensional structure of long-period pulsations at polar latitudes in Antarctica, J. Geophys. Res., 109, A03222, doi:10.1029/2003JA010166, 2004. Zhou, X. W., Russell, C. T., Le Fuselier, S. A., and Scudder, J. D.: Solar wind control of the polar cusp at high altitude, J. Geophys. Res., 105, 245–251, doi:10.1029/1999JA900412, 2000.en
dc.description.obiettivoSpecifico3.9. Fisica della magnetosfera, ionosfera e meteorologia spazialeen
dc.description.obiettivoSpecifico1.6. Osservazioni di geomagnetismoen
dc.description.journalTypeJCR Journalen
dc.description.fulltextreserveden
dc.contributor.authorCafarella, L.en
dc.contributor.authorDi Mauro, D.en
dc.contributor.authorLepidi, S.en
dc.contributor.authorMeloni, A.en
dc.contributor.authorPietrolungo, M.en
dc.contributor.authorSantarelli, L.en
dc.contributor.authorSchott, J. J.en
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italiaen
dc.contributor.departmentEcole et Observatoire des Science de la Terre, IPG, Strasbourg, Franceen
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.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.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.deptEOST, IPG, Strasbourg, France-
crisitem.author.orcid0000-0003-2005-8923-
crisitem.author.orcid0000-0003-1757-9816-
crisitem.author.orcid0000-0002-5692-2560-
crisitem.author.orcid0000-0003-1155-401X-
crisitem.author.orcid0000-0002-4134-1560-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent01. Atmosphere-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.department.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
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