Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo station

The two horizontal geomagnetic components and, measured by a fluxgate magnetometer at Antarctic McMurdo station (corrected geomagnetic coordinates 80.0° S, 327.5° E), are analyzed for the period May-June 1994; the spectral powers are calculated and integrated over three frequency intervals correspon...

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Bibliographic Details
Published in:Annals of Geophysics
Main Authors: Ballatore, P., Engebretson, M. J., Maclennan, C. G., Candidi, M.
Format: Article in Journal/Newspaper
Language:English
Published: Istituto Nazionale di Geofisica e Vulcanologia, INGV 1998
Subjects:
Magnetospheric physics
geomagnetic pulsations
hydromagnetic waves
Antartica
01.03.03. Magnetospheric physics
04.05.99. General or miscellaneous
Antarctic
Terra Nova Bay
McMurdo Station
Antarc*
antartic*
Online Access:https://www.annalsofgeophysics.eu/index.php/annals/article/view/4326
https://doi.org/10.4401/ag-4326
Description
Summary:The two horizontal geomagnetic components and, measured by a fluxgate magnetometer at Antarctic McMurdo station (corrected geomagnetic coordinates 80.0° S, 327.5° E), are analyzed for the period May-June 1994; the spectral powers are calculated and integrated over three frequency intervals corresponding to the nominal ranges. The time dependence of those integrated powers and their correlations with northern auroral indices and solar wind speed are considered. The observations are compared with previous results reported from Terra Nova Bay station (located near McMurdo at the same corrected geomagnetic latitude) during Antarctic summer intervals. The differences found between the two stations are discussed in terms of the seasonal dependence of geomagnetic field line configurations in the near cusp region.

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