دورية أكاديمية

Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions

التفاصيل البيبلوغرافية
العنوان: Daily variation at Concordia station (Antarctica) and its dependence on IMF conditions
المؤلفون: Cafarella, L., Di Mauro, D., Lepidi, S., Meloni, A., Pietrolungo, M., Santarelli, L., Schott, J. J.
المساهمون: Cafarella, L., Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia, Di Mauro, D., Lepidi, S., Meloni, A., Pietrolungo, M., Santarelli, L., Schott, J. J., Ecole et Observatoire des Science de la Terre, IPG, Strasbourg, France
بيانات النشر: Copernicus
سنة النشر: 2007
المجموعة: Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia)
مصطلحات موضوعية: Geomagnetism and paleomagnetism (Time variations, diurnal to secular), Magnetospheric physics (Polar cap phenomena, Solar wind-magnetosphere interactions), 01. Atmosphere::01.03. Magnetosphere::01.03.99. General or miscellaneous
الوصف: After 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. ; Published ; 2045–2051 ; 3.9. Fisica della magnetosfera, ionosfera e meteorologia spaziale ; 1.6. Osservazioni di geomagnetismo ; JCR Journal ; reserved
نوع الوثيقة: article in journal/newspaper
اللغة: English
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الإتاحة: http://hdl.handle.net/2122/3027Test
حقوق: restricted
رقم الانضمام: edsbas.A9A74C41
قاعدة البيانات: BASE