Journal : Acta Geophysica
Article : Determination of the Croatian geomagnetic observatory location

Authors :
Bogusz, J.
Centre of Applied Geomatics, Military University of Technology, jbogusz@wat.edu.pl,
Saibi, H.
Laboratory of Exploration Geophysics, Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, Fukuoka, Japan, saibi-hakim@mine.kyushu-u.ac.jp,
Verbanac, G.
University of Zagreb, Faculty of Science, Department of Geophysics, Zagreb, Croatia, verbanac@irb.hr,
Abstract : Ground survey within the Nature Park Lonjsko Polje, placed in the middle-northern Croatia was performed during the time interval 2007-2010 in order to find the best location for installing the geomagnetic observatory. The total magnetic field has been measured a few times using the Overhauser proton magnetometers. The horizontal and vertical gradients of the total field, and its temporal behaviour were investigated over the restricted region that we estimated as suitable for the observatory. The results obtained from thoroughly conducted measurements allowed us to find definitive positions for the instrument pillars. These results are in agreement with previously suggested location found based on combination of Comprehensive CM4 model prediction and measurements conducted from 2003 to 2005. This study contributes to the development of geomagnetism in Croatia and paves a way to install the first geomagnetic observatory in Croatia.

Keywords : ground survey, total field time series, geomagnetic observatory,
Publishing house : Instytut Geofizyki PAN
Publication date : 2012
Number : Vol. 60, no. 2
Page : 337 – 356

Bibliography
: Bendat, J.S., and A.G. Piersol (2000), Random Data: Analysis and Measurement Procedures, 3rd ed., John Wiley & Sons Inc., New Jersey, USA.
Echer, E., W.D. Gonzalez, A.L.C. Gonzalez, A. Prestes, L.E.A. Vieira, A. Dal Lago, F.L. Guarnieri, and N.J. Schuch (2004), Long-term correlation between solar and geomagnetic activity, J. Atmos. Sol.-Terr. Phys. 66, 12, 1019-1025, DOI: 10.1016/j.jastp.2004.03.011.
Georgieva, K., and B. Kirov (2011), Solar dynamo and geomagnetic activity, J. Atmos. Sol.-Terr. Phys. 73, 2-3, 207-222, DOI: 10.1016/j.jastp.2010. 03.003.
Jacobs, J.A. (1987), Geomagnetism, Vol. 2, Academic Press, London.
Jankowski, J., and C. Sucksdorff (1996), Guide for Magnetic Measurements and Observatory Practice, International Association of Geomagnetism and Aeronomy, Warszawa, Poland.
Kovács, P., A. Körmendi, L. Hegymegi, M. Chiappini, and G. Dominici (1999), The Hungarian magnetic network and the processing of the obtained data, Phys. Chem. Earth A 24, 5, 439-443, DOI: 10.1016/S1464-1895(99)00072-1.
Mandea, M., R. Holme, A. Pais, K. Pinheiro, A. Jackson, and G. Verbanac (2010), Geomagnetic jerks: Rapid core field variations and core dynamics, Space Sci. Rev. 155, 1-4, 147-175, DOI: 10.1007/s11214-010-9663-x.
Meloni, A., O. Battelli, A. De Santis, and G. Dominici (1994), The 1990.0 magnetic repeat station survey and normal reference fields for Italy, Ann. Geophys. 37, 5, 949-967.
Merrill, R., M. McElhinny, and P. McFadden (1998), The Magnetic Field of the Earth: Paleomagnetism, the Core, and the Deep Mantle, Academic Press, San Diego.
Newitt, L.R., C.E. Barton, and J. Bitterly (1996), Guide for Magnetic Repeat Station Surveys, International Association of Geomagnetism and Aeronomy, Warszawa, Poland.
Press, W.H., S.A. Teukolsky, W.T. Vetterling, and B.P. Flannery (2007), Numerical Recipes: The Art of Scientific Computing, 3rd edn., Cambridge University Press, New York.
Riddihough, R.P. (1971), Diurnal corrections to magnetic surveys – An assessment of errors, Geophys. Prospect. 19, 4, 551-567, DOI: 10.1111/j.1365-2478.1971.tb00900.x.
St-Louis, B. (ed.) (2004), Intermagnet Technical Reference Manual (Version 4.2.), online at http://www.intermagnet.org.
Verbanac, G., and M. Korte (2006), The geomagnetic field in Croatia, Geofizika 23, 2, 105-117.
Verbanac, G., M. Korte, and M. Mandea (2009), Four decades of European geomagnetic secular variation and acceleration, Ann. Geophys. 52, 5, 487-503.
Verbanac, G., B. Vršnak, M. Temmer, M. Mandea, and M. Korte (2010), Four decades of geomagnetic and solar activity: 1960-2001, J. Atmos. Sol.-Terr. Phys. 72, 7-8, 607-616, DOI: 10.1016/j.jastp.2010.02.017.
Verbanac, G. (2011), Modeling the geomagnetic field over Croatia, Geofizika 29 (in press).
Vujić, E., G. Verbanac, V. Vujnović, and A. Marki (2009), Detailed analysis of the geomagnetic ground survey performed in middle-northern Croatia over the time interval 2003-2005, Stud. Geophys. Geod. 53, 4, 497-517, DOI: 10.1007/s11200-009-0036-4.
Vujić, E., G. Verbanac, S. Frančišković-Bilinski, V. Vujnović, and A. Marki (2011), Estimation of the normal geomagnetic field and geological interpretation of the normal field anomalies over middle-northern Croatia, Stud. Geophys. Geod. 55, 1, 175-190, DOI: 10.1007/s11200-011-0010-9.
DOI :
Qute : Bogusz, J. ,Saibi, H. ,Verbanac, G. ,Verbanac, G. , Determination of the Croatian geomagnetic observatory location. Acta Geophysica Vol. 60, no. 2/2012
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