Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6)
International audience An analysis is made of the long-period geomagnetic pulsations as recorded at seven Norilsk meridian stations ( ? =162°, latitudinal range: 61°?71°N) following abrupt magnetospheric expansion during the storm of 22 March 1979 caused by a rapid decrease in solar wind density. As...
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ftinsu:oai:HAL:hal-00316354v1 2023-11-12T04:21:29+01:00 Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6) Parkhomov, V. A. Mishin, V. V. Borovik, L. V. Irkutsk State Economy Academy Lenin street 11 Institute of Solar-Terrestrial Physics Irkutsk (ISTP) Siberian Branch of the Russian Academy of Sciences (SB RAS) 1998 https://hal.science/hal-00316354 https://hal.science/hal-00316354/document https://hal.science/hal-00316354/file/angeo-16-134-1998.pdf en eng HAL CCSD European Geosciences Union hal-00316354 https://hal.science/hal-00316354 https://hal.science/hal-00316354/document https://hal.science/hal-00316354/file/angeo-16-134-1998.pdf info:eu-repo/semantics/OpenAccess ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316354 Annales Geophysicae, 1998, 16 (2), pp.134-139 [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 1998 ftinsu 2023-10-25T16:25:39Z International audience An analysis is made of the long-period geomagnetic pulsations as recorded at seven Norilsk meridian stations ( ? =162°, latitudinal range: 61°?71°N) following abrupt magnetospheric expansion during the storm of 22 March 1979 caused by a rapid decrease in solar wind density. As with the time interval following an abrupt contraction at the time of sudden storm commencement, there exist two types of pulsations in the pulsation spectra: latitude-independent ( T >400 s) and latitude-dependent ( T <200 s) pulsations. The first pulsation type is interpreted in terms of forced pulsations associated with magnetopause oscillations. The oscillation period is determined by plasma density in the boundary layer and by the radius of the magnetosphere ( T ~ ? 1/2 R 4 ). The latitudinal dependence of the period, amplitude and polarization of the second-type pulsations is in agreement with the resonance mechanism of their origin. Keywords. Geomagnetic pulsations · Solar wind · Magnetopause oscillations Article in Journal/Newspaper norilsk Institut national des sciences de l'Univers: HAL-INSU Norilsk ENVELOPE(88.203,88.203,69.354,69.354) |
institution |
Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
op_collection_id |
ftinsu |
language |
English |
topic |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Parkhomov, V. A. Mishin, V. V. Borovik, L. V. Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6) |
topic_facet |
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience An analysis is made of the long-period geomagnetic pulsations as recorded at seven Norilsk meridian stations ( ? =162°, latitudinal range: 61°?71°N) following abrupt magnetospheric expansion during the storm of 22 March 1979 caused by a rapid decrease in solar wind density. As with the time interval following an abrupt contraction at the time of sudden storm commencement, there exist two types of pulsations in the pulsation spectra: latitude-independent ( T >400 s) and latitude-dependent ( T <200 s) pulsations. The first pulsation type is interpreted in terms of forced pulsations associated with magnetopause oscillations. The oscillation period is determined by plasma density in the boundary layer and by the radius of the magnetosphere ( T ~ ? 1/2 R 4 ). The latitudinal dependence of the period, amplitude and polarization of the second-type pulsations is in agreement with the resonance mechanism of their origin. Keywords. Geomagnetic pulsations · Solar wind · Magnetopause oscillations |
author2 |
Irkutsk State Economy Academy Lenin street 11 Institute of Solar-Terrestrial Physics Irkutsk (ISTP) Siberian Branch of the Russian Academy of Sciences (SB RAS) |
format |
Article in Journal/Newspaper |
author |
Parkhomov, V. A. Mishin, V. V. Borovik, L. V. |
author_facet |
Parkhomov, V. A. Mishin, V. V. Borovik, L. V. |
author_sort |
Parkhomov, V. A. |
title |
Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6) |
title_short |
Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6) |
title_full |
Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6) |
title_fullStr |
Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6) |
title_full_unstemmed |
Long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 March 1979 (CDAW-6) |
title_sort |
long-period geomagnetic pulsations caused by the solar wind negative pressure impulse on 22 march 1979 (cdaw-6) |
publisher |
HAL CCSD |
publishDate |
1998 |
url |
https://hal.science/hal-00316354 https://hal.science/hal-00316354/document https://hal.science/hal-00316354/file/angeo-16-134-1998.pdf |
long_lat |
ENVELOPE(88.203,88.203,69.354,69.354) |
geographic |
Norilsk |
geographic_facet |
Norilsk |
genre |
norilsk |
genre_facet |
norilsk |
op_source |
ISSN: 0992-7689 EISSN: 1432-0576 Annales Geophysicae https://hal.science/hal-00316354 Annales Geophysicae, 1998, 16 (2), pp.134-139 |
op_relation |
hal-00316354 https://hal.science/hal-00316354 https://hal.science/hal-00316354/document https://hal.science/hal-00316354/file/angeo-16-134-1998.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1782336873329328128 |