March 3, 2010 Journal article Open Access

L. Santarelli; Stefania Lepidi; Antonio Meloni; Lili Cafarella

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    <subfield code="a">During the 1986-87 austral summer a geomagnetic observatory was installed at Terra Nova Bay. During the first&lt;br&gt;years both geomagnetic field time variation monitoring and absolute measurements were carried out only during&lt;br&gt;summer. Since 1991 variometer measurements are automatically performed throughout the year, while absolute&lt;br&gt;measurements are still performed only during summer. In spite of this, interesting observations were obtained&lt;br&gt;during the life (quite long for Antarctica) of the geomagnetic observatory. In particular, this paper briefly&lt;br&gt;presents some of the most important results: studies on secular variation, daily variation (and its dependence&lt;br&gt;from solar cycle and seasons) and geomagnetic higher frequency variations, such as geomagnetic pulsations.</subfield>
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    <subfield code="a">Twenty years of geomagnetic field observations at Mario Zucchelli Station (Antarctica)</subfield>
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