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On Data Interpolation at Three Croatian Repeat Stations by Using the Spherical Elementary Currents Systems Method

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Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
A general mathematical tool for expanding vector systems on a sphere into basis functions, spherical elementary current system (SECS) method, was applied for separation of the geomagnetic field variations into external and internal parts, over a limited region of central and southeastern Europe. The registered variations at three Croatian repeat stations were compared to the variations estimated by the SECS method using the variations from the different sets of observatories. The results of the SECS method were also compared to a simple assumption that the variations at repeat station are equal to those at particular observatory. The relevance of this comparison was to get an insight about the possibility of using the SECS method for estimating the geomagnetic field variations over Croatia. The guidelines for the application of the SECS method for the purpose of reducing repeat station data were also given.
Czasopismo
Rocznik
Strony
320--335
Opis fizyczny
Bibliogr. 17 poz.
Twórcy
autor
  • Faculty of Geodesy, University of Zagreb, Zagreb, Croatia
Bibliografia
  • Amm, O. (1997), Ionospheric elementary current systems in spherical coordinates and their application, J. Geomagn. Geoelectr. 49, 7, 947-955, DOI: 10.5636/jgg.49.947.
  • Amm, O., and A. Viljanen (1999), Ionospheric disturbance magnetic field continuation from the ground to the ionosphere using spherical elementary current systems, Earth Planets Space 51, 6, 431-440, DOI: 10.1186/BF03352247.
  • Amm, O., R. Fujii, H. Vanhamäki, A. Yoshikawa, and A. Ieda (2013), General solution for calculating polarization electric fields in the auroral ionosphere and application examples, J. Geophys. Res. 118, 5, 2428-2437, DOI: 10.1002/ jgra.50254.
  • Apatenkov, S.V., V.A. Sergeev, R. Pirjola, and A. Viljanen (2004), Evaluation of the geometry of ionospheric current systems related to rapid geomagnetic variations, Ann. Geophys. 22, 1, 63-72, DOI: 10.5194/angeo-22-63-2004.
  • Brkić, M. (ed.) (2013), Basic Geomagnetic Network of the Republic of Croatia 2004 – 2012, with Geomagnetic Field Maps for 2009.5 Epoch, Croatian State Geodetic Administration, Zagreb (in Croatian).
  • Csontos, A., D. Šugar, M. Brkić, P. Kovács, and L. Hegymegi (2012), How to control a temporary DIDD based observatory in the field? Ann. Geophys. 55, 6, 1085-1094, DOI: 10.4401/ag-5447.
  • Juusola, L., O. Amm, and A. Viljanen (2006), One-dimensional spherical elementary current systems and their use for determining ionospheric currents from satellite measurements, Earth Planets. Space 58, 5, 667-678, DOI: 10.1186/BF03351964.
  • Korte, M., and E. Thébault (2007), Geomagnetic repeat station crustal biases and vectorial anomaly maps for Germany, Geophys. J. Int. 170, 1, 81-92, DOI: 10.1111/j.1365-246X.2007.03387.x.
  • Mandea, M., and M. Purucker (2005), Observing, modeling and interpreting magnetic fields of the solid Earth, Surv. Geophys. 26, 4, 415-459, DOI: 10.1007/s10712-005-3857-x.
  • McLay, S.A., and C.D. Beggan (2010), Interpolation of externally-caused magnetic fields over large sparse arrays using Spherical Elementary Current Systems, Ann. Geophys. 28, 9, 1795-1805, DOI: 10.5194/angeo-28-1795-2010.
  • Newitt, L.R., C.E. Barton, and J. Bitterly (1996), Guide for Magnetic Repeat Station Surveys, International Association of Geomagnetism and Aeronomy, Boulder.
  • Press, W.H., S.A. Teukolsky, W.T. Vetterling, and B.P. Flannery (2001), Numerical Recipes in Fortran 77: The Art of Scientific Computing, Cambridge University Press, New York.
  • Pulkkinen, A., O. Amm, A. Viljanen, and BEAR Working Group (2003a), Separation of the geomagnetic variation field on the ground into external and internal parts using the spherical elementary current system method, Earth Planets Space 55, 3, 117-129, DOI: 10.1186/BF03351739.
  • Pulkkinen, A., O. Amm, A. Viljanen, and BEAR Working Group (2003b), Ionospheric equivalent current distributions determined with the method of spherical elementary current systems, J. Geophys. Res. 108, A2, 1053, DOI: 10.1029/2001JA005085.
  • Vanhamäki, H., O. Amm, and A. Viljanen (2003), One-dimensional upward continuation of the ground magnetic field disturbance using spherical elementary current systems, Earth Planets Space 55, 10, 613-625, DOI: 10.1186/ BF03352468.
  • Vanhamäki, H., A. Viljanen, R. Pirjola, and O. Amm (2013), Deriving the geomagnetically induced electric field at the Earth’s surface from the time derivative of the vertical magnetic field, Earth Planets Space 65, 9, 997-1006, DOI: 10.5047/eps.2013.03.013.
  • Vujić, E., M. Brkić, and N. Radović (2011), Analysis of Croatian geomagnetic repeat station surveys in 2004 and 2007, Stud. Geophys. Geod. 55, 4, 737- 753, DOI: 10.1007/s11200-010-9037-6.
Uwagi
PL
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-84f36f8c-2a91-4f35-809d-1694f433ae01
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