Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network
A large amount of geomagnetic data of Intermagnet network observatories for 1991—2014 years have been processed and time series of induction vector components for every month were obtained. This paper presents the results of processing of eight observatories, located in different parts of the globe....
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| Date: | 2017 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | Russian |
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S. Subbotin Institute of Geophysics of the NAS of Ukraine
2017
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| Online Access: | https://journals.uran.ua/geofizicheskiy/article/view/94013 |
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| Journal Title: | Geofizicheskiy Zhurnal |
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Geofizicheskiy Zhurnal| _version_ | 1856543119072296960 |
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| author | Ваbак, V. I. Rokityansky, I. I. Sokolova, E. Yu. Теreshin, A. V. |
| author_facet | Ваbак, V. I. Rokityansky, I. I. Sokolova, E. Yu. Теreshin, A. V. |
| author_sort | Ваbак, V. I. |
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| collection | OJS |
| datestamp_date | 2020-10-07T11:14:17Z |
| description | A large amount of geomagnetic data of Intermagnet network observatories for 1991—2014 years have been processed and time series of induction vector components for every month were obtained. This paper presents the results of processing of eight observatories, located in different parts of the globe. For these observatories graphs of monthly values of induction vector components for four intervals of periods from the range 5—60 minutes are shown. Periodic changes in vector components (from semiannual to 11-years) are detected, as well as trends. After 2007 some increase of annual variations is seen. The most intense variations are at high geomagnetic latitudes and in the equatorial zone; they arc minimal in the middle latitudes. The nature of variations is affected both by global and regional/local factors. Investigation of these periodic changes can give an unique information on the substance and the structural features of the Earth's interior. At Polish observatories long aperiodic variation is obtained after 2008, clarifying the nature of which requires further research. |
| first_indexed | 2025-07-17T11:04:48Z |
| format | Article |
| id | journalsuranua-geofizicheskiy-article-94013 |
| institution | Geofizicheskiy Zhurnal |
| language | Russian |
| last_indexed | 2025-07-17T11:04:48Z |
| publishDate | 2017 |
| publisher | S. Subbotin Institute of Geophysics of the NAS of Ukraine |
| record_format | ojs |
| spelling | journalsuranua-geofizicheskiy-article-940132020-10-07T11:14:17Z Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network Ваbак, V. I. Rokityansky, I. I. Sokolova, E. Yu. Теreshin, A. V. electromagnetic functions of response induction vectors periodical variations of induction vectors foreshocks of earthquakes A large amount of geomagnetic data of Intermagnet network observatories for 1991—2014 years have been processed and time series of induction vector components for every month were obtained. This paper presents the results of processing of eight observatories, located in different parts of the globe. For these observatories graphs of monthly values of induction vector components for four intervals of periods from the range 5—60 minutes are shown. Periodic changes in vector components (from semiannual to 11-years) are detected, as well as trends. After 2007 some increase of annual variations is seen. The most intense variations are at high geomagnetic latitudes and in the equatorial zone; they arc minimal in the middle latitudes. The nature of variations is affected both by global and regional/local factors. Investigation of these periodic changes can give an unique information on the substance and the structural features of the Earth's interior. At Polish observatories long aperiodic variation is obtained after 2008, clarifying the nature of which requires further research. S. Subbotin Institute of Geophysics of the NAS of Ukraine 2017-03-01 Article Article application/pdf https://journals.uran.ua/geofizicheskiy/article/view/94013 10.24028/gzh.0203-3100.v39i1.2017.94013 Geofizicheskiy Zhurnal; Vol. 39 No. 1 (2017); 97-110 Геофизический журнал; Том 39 № 1 (2017); 97-110 Геофізичний журнал; Том 39 № 1 (2017); 97-110 2524-1052 0203-3100 ru https://journals.uran.ua/geofizicheskiy/article/view/94013/195719 Copyright (c) 2020 Geofizicheskiy Zhurnal https://creativecommons.org/licenses/by/4.0 |
| spellingShingle | electromagnetic functions of response induction vectors periodical variations of induction vectors foreshocks of earthquakes Ваbак, V. I. Rokityansky, I. I. Sokolova, E. Yu. Теreshin, A. V. Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network |
| title | Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network |
| title_full | Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network |
| title_fullStr | Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network |
| title_full_unstemmed | Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network |
| title_short | Annual, 11-year period and aperiodic variations of the induction vector by eight observatories of Intermagnet network |
| title_sort | annual, 11-year period and aperiodic variations of the induction vector by eight observatories of intermagnet network |
| topic | electromagnetic functions of response induction vectors periodical variations of induction vectors foreshocks of earthquakes |
| topic_facet | electromagnetic functions of response induction vectors periodical variations of induction vectors foreshocks of earthquakes |
| url | https://journals.uran.ua/geofizicheskiy/article/view/94013 |
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