J. Space Weather Space Clim.
Volume 8, 2018
Developing New Space Weather Tools: Transitioning fundamental science to operational prediction systems
Article Number A07
Number of page(s) 14
Published online 13 February 2018
  • Chambodut A, Di Mauro D, Schott JJ, Bordais P, Agnoletto L, Di Felice P. 2009. Three years continous record of the Earth's magnetic field at Concordia station (Dome-C, Antarctica). Annals of Geophysics 52: 15–24.
  • Di Mauro D, Cafarella L, Lepidi S, Pietrolungo M, Alfonsi L, Chambodut A. 2014. Geomagnetic polar observatories: the role of Concordia station at Dome C, Antarctica. Annals of Geophysics 57: 6. DOI:10.4401/ag-6605.
  • Huang C-S., Sofko GJ, Koustov AV, André DA, Ruohoniemi JM, Greenwald RA, Hairston MR. 2000. Evolution of ionospheric multicell convection during northward interplanetary magnetic field with |BZ/BY|>1. J Geophys Res 105: 27095–27107. [CrossRef]
  • Janzhura AS, Troshichev OA. 2008. Determination of the running quiet daily geomagnetic variation. J Atmos Solar-Terr Phys 70: 962–972. DOI:10.1016/j.jastp.2007.11.004. [CrossRef]
  • Janzhura AS, Troshichev OA. 2011. Identification of the IMF sector structure in near-real time by ground magnetic data. Ann Geophys 29: 1491–1500. DOI:10.5194/angeo-29-1491-2011. [CrossRef]
  • Janzhura A, Troshichev OA, Stauning P. 2007. Unified PC indices: relation to the isolated magnetic substorms. J Geophys Res 112: A09207. DOI: 10.1029/2006JA012132. [CrossRef]
  • Kan JR, Lee LC. 1979. Energy coupling function and solar wind-magnetosphere dynamo. Geophys Res Lett 6: 577–580. DOI:10.1029/GL006i007p00577. [NASA ADS] [CrossRef]
  • Papitashvili VO, Rasmussen O. 1999. Effective area for the northern polar cap magnetic activity index. Geophys Res Lett 26: 2917–2920. DOI:10.1029/1999GL003611. [CrossRef]
  • Papitashvili VO, Gromova LI, Popov VA, Rasmussen O. 2001. Northern Polar Cap magnetic activity index PCN: effective area, universal time, seasonal and solar cycle variations. DMI Scientific Report SR 01-01. ISSN: 0905-3263, ISBN: 87-7478-432-3. Available at
  • Ridley AJ. 2005. A new formulation for the ionospheric cross polar cap potential including saturation effects. Ann Geophys 23: 3533–3547. DOI:10.5194/angeo-23-3533-2005. [CrossRef]
  • Stauning P. 2007. A new index for the interplanetary merging electric field and the global geomagnetic activity: application of the unified Polar Cap (PCN and PCS) indices. AGU Space Weather 5: S09001. DOI:10.1029/2007SW000311.
  • Stauning P. 2011. Determination of the quiet daily geomagnetic variations for polar regions. J Atm Solar-Terr Phys 73: 2314–2330. DOI:10.1016/j.jastp.2011.07.004. [CrossRef]
  • Stauning P. 2012. The Polar Cap PC indices: relations to solar wind and global disturbances. In: Marian L, ed. Exploring the solar wind. InTech Publ. ISBN: 978-953-51-0339-4. DOI: 10.5772/37359.
  • Stauning P. 2013a. Comments on quiet daily variation derivation in: Identification of the IMF sector structure in near-real time by ground magnetic data by Janzhura and Troshichev (2011). Ann Geophys 31: 1221–1225. DOI:10.5194/angeo-31-1221-2013. [CrossRef]
  • Stauning P. 2013b. Power grid disturbances and polar cap index during geomagnetic storms. J Space Weather Space Clim 3: A22. DOI:10.1051/swsc2013044. [CrossRef]
  • Stauning P. 2013c. The Polar Cap index: a critical review of methods and a new approach. J Geophys Res Space Phys 118: 5021–5038. DOI: 10.1002/jgra.50462. [CrossRef]
  • Stauning P. 2015. A critical note on the IAGA-endorsed Polar Cap index procedure: effects of solar wind sector structure and reverse polar convection. Ann Geophys 33: 1443–1455. DOI:10.5194/angeo-33-1443-2015. [CrossRef]
  • Stauning P. 2016. The Polar Cap (PC) index: derivation procedures and quality control. DMI Scientific Report SR- 16-22. Available at:
  • Stauning P, Christiansen F, Watermann J, Christensen T, Rasmussen O. 2002. Mapping of field-aligned current patterns during northward IMF. In: Reigber C, Lühr H, Schwintzer P, eds. First CHAMP Mission results for gravity, magnetic and atmospheric studies. Berlin: Springer-Verlag, 353–360, DOI:10.1007/978-3-540-38366-6.
  • Stauning P, Troshichev OA, Janzhura A. 2008. The Polar Cap (PC) indices. Relations to solar wind parameters and global magnetic activity. J Atmos Solar-Terr Phys 70: 2246–2261. DOI:10.1016/j.jastp.2008.09.028. [CrossRef]
  • Troshichev OA. Polar Cap (PC) index. 2011. Available at: or
  • Troshichev OA, Andrezen VG. 1985. The relationship between interplanetary quantities and magnetic activity in the southern polar cap. Planet Space Sci 33: 415–419, DOI: 10.1016/0032-0633(85)90086-8. [CrossRef]
  • Troshichev OA, Janzhura A. 2009. Relationship between the PC and AL indices during repetitive bay-like magnetic disturbances in the auroral zone. J Atmos Solar-Terr Phys 71: 1340–1352. DOI: 10.1016/j.jastp.2009.05.017 [CrossRef]
  • Troshichev OA, Janzhura A, Space weather monitoring by ground-based means, Springer-Verlag, Berlin, Heidelberg, 2012. ISBN: 978-3-642-16802-4. DOI:10.1007/978-3-642-16803-1. [CrossRef]
  • Troshichev OA, Andrezen VG, Vennerstrøm S, Friis-Christensen E. 1988. Magnetic activity in the polar cap − a new index. Planet Space Sci 36: 1095–1102. DOI: 10.1016/0032-0633(88)90063-3 [CrossRef]
  • Troshichev OA, Janzhura A, Stauning P. 2006. Unified PCN and PCS indices: method of calculation, physical sense and dependence on the IMF azimuthal and northward components. J Geophys Res 111: A05208. DOI:10.1029/2005JA011402. (note correction in Troshichev et al., 2009) [CrossRef]
  • Troshichev O, Janzhura A, Stauning P. 2009. Correction to Unified PCN and PCS indices: method of calculation, physical sense, and dependence on the IMF azimuthal and northward components. J Geophys Res 114: A11202. DOI:10.1029/2009JA014937. [CrossRef]
  • Troshichev OA, Somarkov DA, Janzhura A. 2011. Relation of PC index to the geomagnetic storm Dst variation. J Atmos Solar-Terr Phys 73: 611–622. DOI:10.1016/j.jastp.2010.12.015. [CrossRef]
  • Troshichev OA, Sormakov DA, Janzhura A. 2012. Relations between PC index and substorm (AL) and storm (SYM, ASYM) indices under conditions of the steadily high solar wind energy input into the magnetosphere. Adv Space Res 49: 872–882. DOI:10.1016/j.asr.2011.12.011. [CrossRef]
  • Troshichev O, Podorozhkina NA, Sormakov DA, Janzhura A. 2014. PC index as a proxy of the solar wind energy that entered into the magnetosphere: 1. Development of magnetic substorms. J Geophys Res Space Phys 119: 6521–6540. DOI:10.1002/2014JA019940. [CrossRef]
  • Vennerstrøm S, The geomagnetic activity index PC, PhD Thesis, Scientific Report 91-3, Danish Meteorological Institute, 1991, 105 p.

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