Twenty years of geomagnetic field observations at Mario Zucchelli Station (Antarctica)

• Main Authors: Cafarella L, Lepidi S, Meloni A, L. Santarelli
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: geomagnetic observatory; geomagnetic field variations; Antarctica; Austral; Mario Zucchelli; Mario Zucchelli Station; Terra Nova Bay; Antarc*
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.614.1825; http://www.earth-prints.org/bitstream/2122/4439/1/twenty_years_annals_revised_new.pdf

During the 1986-87 austral summer a geomagnetic observatory was installed at Terra Nova Bay. During the first years both geomagnetic field time variation monitoring and absolute measurements were carried out only during summer. Since 1991 variometer measurements are automatically performed during the whole year, while absolute measurements are still performed only during summer. In spite of this, interesting observations were obtained during the life (quite long for Antarctica) of the geomagnetic observatory. In particular in this paper some of the most relevant results are briefly presented: studies about secular variation, daily variation (and its dependence from solar cycle and seasons) and geomagnetic higher frequency variations, such as geomagnetic pulsations.