Determination of the Croatian geomagnetic observatory location
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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.
Key wordsground survey total field time series geomagnetic observatory
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- Bendat, J.S., and A.G. Piersol (2000), Random Data: Analysis and Measurement Procedures, 3rd ed., John Wiley & Sons Inc., New Jersey, USA.Google Scholar
- Jacobs, J.A. (1987), Geomagnetism, Vol. 2, Academic Press, London.Google Scholar
- Jankowski, J., and C. Sucksdorff (1996), Guide for Magnetic Measurements and Observatory Practice, International Association of Geomagnetism and Aeronomy, Warszawa, Poland.Google Scholar
- 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.Google Scholar
- 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.Google Scholar
- Newitt, L.R., C.E. Barton, and J. Bitterly (1996), Guide for Magnetic Repeat Station Surveys, International Association of Geomagnetism and Aeronomy, Warszawa, Poland.Google Scholar
- 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.Google Scholar
- 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.Google Scholar
- Verbanac, G., M. Korte, and M. Mandea (2009), Four decades of European geomagnetic secular variation and acceleration, Ann. Geophys. 52,5, 487–503.Google Scholar
- Verbanac, G. (2011), Modeling the geomagnetic field over Croatia, Geofizika 29 (in press).Google Scholar
- 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.CrossRefGoogle Scholar