Low Frequency Geomagnetic Field Fluctuations at Different High Latitude Stations During October 29-31, 2003

In this work we present a study of the low frequency geomagnetic field fluctuations detected at high latitude in the period October 29-31, 2003; this period is characterized by the Earth's arrival of solar wind CMEs, which on one hand produced major geomagnetic storms, on the other hand were characterized by long-duration intervals with northward interplanetary magnetic field and high solar wind speed. We analyze geomagnetic field data recorded at the three antarctic stations Terra Nova Bay, Scott Base and Dumont D'Urville, located at the same geomagnetic latitude (about 80S) but at different magnetic local time (about MLT=UT-8, MLT=UT-7 and MLT=UT-13, respectively). The analysis is extended also to the canadian station Cambridge Bay, which has the same magnetic local time and almost opposite corrected geomagnetic latitude as Terra Nova Bay.