GEOMAGNETIC FIELD MEASUREMENTS AT MAGNETIC REPEAT STATIONS IN FORMER YUGOSLAVIA
A brief historical review of the geomagnetic field measurements in the territory of former Yugoslavia follows. In 1957 continuous magnetic recordings began at Grocka Geomagnetic Observatory (GCK). Field measurements at repeat stations were made at the same time. Grocka Observatory is still the only institution of its kind in the territory of former Yugoslavia. The frequency of the repeat station measurements and the instruments used will be discussed. A new network of magnetic repeat stations was designed for the territory of the Federal Republic of Yugoslavia (FR Yugoslavia). Between 1994 and 1998, geomagnetic surveys and first order surveys have been done at repeat stations (secular stations). This paper reports on the variometer methodology used in magnetic repeat station surveys. The diurnal variations of the geomagnetic field are analyzed at the secular stations in the northern part of Yugoslavia. Also, the spectrum of the diurnal variations, recorded at secular stations, is shown.
KeywordsDiurnal Variation Secular Variation Repeat Station Geomagnetic Observatory Secular Station
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- Bartels J., 1963: Discussion of time-variations of geomagnetic activity indices Kp and Ap. 1932–1961, Annales Geophysics 19, pp.1.Google Scholar
- Chapman S. and Bartels J., 1951: Geomagnetism. (Vol.1 Geomagnetic and related phenomena), Oxford.Google Scholar
- Janovskij B.M., 1972: Zemnoi magnetizm I. (glava IX) Izdatelstvo Leningradskogo Univerziteta.Google Scholar
- Mihajlovic J.S., 1993: Spektralna anliza sekularnih varijacija i magnetskih bura na Geomagnetskoj opservatoriji Grocka. magistarski rod, Beograd.Google Scholar
- Mihajlovic J. S., Djordjevic A., Jankovic J., Obradovic M., 1998: Spektar dnevnih varijacija geomagnetskog polja registrovanih na sekularnim stanicama u Jugoslaviji. Prvi kongres geofizicara Jugoslavije – Zbornik; Beograd; E-10, 559–564.Google Scholar
- Mihajlović, J.S., Rasić, M., & Smiljanić, N., 2000, ‘Spectral analysis and determination transferal functions of electromagnetic field of the Earth’: Contribution of YU Association of Physicists, Book 2, pp. 921–924, Vrnjačka Banja-Yugoslavia.Google Scholar
- Mihajlović, J.S. et al. 2000, ‘Solar Geophysical Processes and Geomagnetic Disturbances’, Contribution of YU Association of Physicists, Book 2, pp. 913–920, Vrnjacka Banja-Yugoslavia.Google Scholar
- Mihajlovic J.S., Obradovic M., 2003, Metodologija magnetovarijacionih merenja; Zbornik radova LVII Konferencije ETRAN-a; Sv.II; pp.; Beograd, 2003.Google Scholar
- Mihajlovich, J.S.; Cholakov, I., 2001, SECULAR VARIATIONS DURING THE 19–21 SOLAR CYCLES; Contributoins to Geophysics and Geodesy 2001; Vol. 31/1; pp. 261–263; Publications of SAS, Bratislava; Slovakia.Google Scholar
- Newitt L.R. et al. 1996, Guide for magnetic repeat station surveys, Copyright by IAGA, NOAA Space Environment Center, Boulder, CO, USA.Google Scholar
- Rikitake T., 1966: Electromagnetism and the Earths interior. (Chapter 19. Conductivity anomaly in the crust and mantle), Elsevier Publishing Company, Amsterdam-London-New York.Google Scholar