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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Main Authors: C. G. Maclennan, M. J. Engebretson, P. Ballatore, M. Candidi
Format: Article
Language:English
Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 1998-06-01
Series:Annals of Geophysics
Subjects:
Online Access:http://www.annalsofgeophysics.eu/index.php/annals/article/view/4326
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author C. G. Maclennan
M. J. Engebretson
P. Ballatore
M. Candidi
author_facet C. G. Maclennan
M. J. Engebretson
P. Ballatore
M. Candidi
author_sort C. G. Maclennan
collection DOAJ
description 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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spelling doaj.art-5c0d33128e654ad9a74a218396e531cf2022-12-21T18:48:05ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X1998-06-0141210.4401/ag-4326Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo stationC. G. MaclennanM. J. EngebretsonP. BallatoreM. CandidiThe 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.http://www.annalsofgeophysics.eu/index.php/annals/article/view/4326Magnetospheric physicsgeomagnetic pulsationshydromagnetic wavesAntartica
spellingShingle C. G. Maclennan
M. J. Engebretson
P. Ballatore
M. Candidi
Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo station
Annals of Geophysics
Magnetospheric physics
geomagnetic pulsations
hydromagnetic waves
Antartica
title Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo station
title_full Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo station
title_fullStr Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo station
title_full_unstemmed Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo station
title_short Ground based observations of Pc3-Pc5 geomagnetic pulsation power at Antarctic McMurdo station
title_sort ground based observations of pc3 pc5 geomagnetic pulsation power at antarctic mcmurdo station
topic Magnetospheric physics
geomagnetic pulsations
hydromagnetic waves
Antartica
url http://www.annalsofgeophysics.eu/index.php/annals/article/view/4326
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