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Petras Petroskevicius, Arunas Buga, Romuald Obuchovski
Latest research on geomagnetic field in Lithuania
| Conference Information: |
9th International Conference “Environmental Engineering”, 22–23 May 2014, Vilnius, LITHUANIA |
| Source: |
ICEE-2014 - International Conference on Environmental
Engineering |
| Book Series: |
International Conference on Environmental Engineering
(ICEE) Selected papers |
| ISSN: |
eISSN 2029-7092 online |
| ISBN: |
eISBN 978-609-457-640-9 |
| ISBN: |
ISBN 978-609-457-690-4 CD |
| Year: |
2014 |
| Publisher: |
Vilnius Gediminas Technical University Press Technika |
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Abstract
Lithuania, supported by Polish specialists, has successfully integrated in the European
geomagnetic field research activities. Six repeat stations were established in 1999
and precise geomagnetic field measurements were performed in 1999, 2001, 2004 and
2007 there. Additional measurements in four airports of Lithuania were done in 2006,
2007 and 2010. Based on measured data, analysis of geomagnetic field parameter
changes was performed. Accumulated data was processed and used for updating
Lithuanian declination map and magnetic declination model accuracy estimating.
Institute of geodesy acquired the modern equipment for geomagnetic field measurement
in 2012. Equipment consists of two units of antimagnetic theodolite Theo010B
with D/I FLUXGATE magnetometer, dIdD magnetometer and ENVI PRO magnetometer/gradiometer.
Experimental measurements of geomagnetic field were performed at VGTU zero order gravity point.
Diurnal magnetic field variations at measuring station and neighbouring observatories were analysed.
Best correlation between data changes in observatory and measuring station was analysed.
Data of research are useful for data reductions and best observatory selection.
Keywords: geomagnetic field; geomagnetic field secular variations; repeat stations.
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