University of Oulu

Space Research Group 2001 Publications

spaceweb@oulu.fi - last update: 9 April 2002   (LK)

Refereed publications

  1. Boella, G., M. Gervasi, S. Mariani, P.G. Rancoita, and I.G. Usoskin: Evidence for charge drift modulation at intermediate solar activity from the flux variation of protons and alpha particles. J. Geophys. Res., 106, No. A12, 29355-29362, 2001. 
  2. Bräysy, T. and K. Mursula: Conjugate observations of electromagnetic ion cyclotron waves. J. Geophys. Res., 106, No. A4, 6029-6041, 2001. 
  3. Danielides, M.A., S. Shalimov, and J. Kangas: Estimates of the field-aligned current density in current-carrying filaments using auroral zone ground-based observations.  Ann. Geophys., 19, 699-706, 2001. 
  4. Danielides, M.A. and A. Kozlovsky: Auroral vortex structures as a result of disturbed geomagnetic conditions. In book: The Outer Heliosphere: The Next Frontiers. Proc. of COSPAR Colloquium, Potsdam, Germany, 24-28 July 2000. Cospar Colloquia Series, vol. 11, edited by K. Scherer, H. Fichtner, H.-J. Fahr and E. Marsch, ISBN 0-444-50909-7, Pergamon, pp. 503-506, 2001.
  5. Gustafsson, G., M. André, T. Carozzi, A.I . Eriksson, C.-G. Fälthammar, R. Grard, G. Holmgren, J.A. Holtet, N. Ivchenko, T. Karlsson, Y. Khotyaintsev, S. Klimov, H. Laakso, P.-A. Lindqvist, B. Lybekk, G. Marklund, F. Mozer, K. Mursula, A. Pedersen, B. Popielawska, S. Savin, K. Stasiewicz, P. Tanskanen, A. Vaivads, and J.-E. Wahlund: First results of electric field and density observations by Cluster EFW based on initial months of operation. Annales Geophys., 19, 1219-1240, 2001.
  6. Kerttula, R., K. Mursula, T. Pikkarainen, and J. Kangas: Storm-time Pc1 activity at high and middle latitudes.  J. Geophys. Res., 106, No. A4, 6213-6227, 2001. 
  7. Kerttula, R., K. Mursula, T. Pikkarainen, and J. Kangas: Effect of magnetic storm intensity on Pc1 activity at high and mid-latitudes. J. Atm. Solar-Terr. Phys., 63, 503-511, 2001.
  8. Kozlovsky, A., T. Lakkala, J. Kangas, and A. Aikio:  Response of the quiet auroral arc motion to ionospheric convection variations.  J. Geophys. Res., 106, No. A10, 21,463-21,473, 2001.
  9. Mursula, K., T. Bräysy, K. Niskala, and C.T. Russell: Pc1 pearls revisited: Structured electromagnetic ion cyclotron waves on Polar satellite and on ground.  J. Geophys. Res., 106, No. A12, 29,543-29,553, 2001. 
  10. Mursula, K., I.G. Usoskin, and G.A. Kovaltsov: Persistent 22-year cycle in sunspot activity: Evidence for a relic solar magnetic field. Solar Physics, 198, 51-56, 2001. 
  11. Mursula, K. and B. Zieger: Long-term north-south asymmetry in solar wind speed inferred from geomagnetic activity: A new type of century-scale solar oscillation? Geophys. Res. Lett., 28, No. 1, 95-98, 2001. 
  12. Prikner, K., K. Mursula, J. Kangas, and F.Z. Feygin: Ionospheric Alfvén resonator control over the frequency-variable Pc1 event in Finland on May 14, 1977. Studia Geoph. et Geod., 45, 363-381, 2001.
  13. Sucksdorff, C., T. Bösinger, J. Kangas, K. Mursula, T. Nygrén, K. Kauristie, and H. Koskinen: Space physics.  Geophysica, 37 (1-2), 309-355, 2001. 
  14. Takalo, J. and K. Mursula: A model for the diurnal universal time variation of the Dst index.  J. Geophys. Res., 106, No. A6, 10905-10914, 2001. 
  15. Takalo, J., J. Timonen, A.J. Klimas, J.A. Valdivia, and D. Vassiliadis: A coupled map as a model of the dynamics of the magnetotail current sheet. J. Atm. Solar-Terr. Phys., 63, 1407-1414, 2001.
  16. Usoskin, I.G., P. Bobik, O.G. Gladysheva, H. Kananen, G.A. Kovaltsov, and K. Kudela: Sensitivity of a neutron monitor to galactic cosmic rays.  Adv. Space Res., 27, No. 3, 565-569, 2001.
  17. Usoskin, I.G., K. Mursula, H. Kananen, and G.A. Kovaltsov: Dependence of cosmic rays on solar activity for odd and even solar cycles.  Adv. Space Res., 27, No. 3, 571-576, 2001.
  18. Usoskin, I.G., K. Mursula, and G.A. Kovaltsov: Was one sunspot cycle lost in late XVIII century? Astron. Astrophys., 370, L31-L34, 2001. 
  19. Usoskin, I.G., K. Mursula, and G.A. Kovaltsov: Simulation of sunspot activity during active Sun and great minima using regular, random and relic fields.  Solar Physics, 199, 187-199, 2001. 
  20. Usoskin, I.G., K. Mursula, and G.A. Kovaltsov: Heliospheric modulation of cosmic rays and solar activity during the Maunder minimum.  J. Geophys. Res., 106, No. A8, 16039-16046, 2001.
  21. Vilenius, E., T. Nygrén, M. Lehtinen, M. Markkanen, and A. Väänänen: Ionospheric tomography.  The Photogrammetric Journal of Finland, 17, No. 2, 78-91, 2001. 
  22. Vilppola, J.H., P.J. Tanskanen, B.L. Barraclough, and D.J. McComas: Comparison between simulations and calibrations of a high resolution electrostatic analyzer.  Rev. Scient. Instruments, 72, No. 9, 3662-3669, 2001. 
  23. Wilken, B., P.W. Daly, U. Mall, K. Aarsnes, D.N. Baker, R.D. Belian, J.B. Blake, H. Borg, J. Büchner, M. Carter, J.F. Fennell, R. Friedel, T.A. Fritz, F. Gliem, M. Grande, K. Kecskemety, G. Kettmann, A. Korth, S. Livi, S. McKenna-Lawlor, K. Mursula, B. Nikutowski,  C.H. Perry,  Z.Y. Pu, J. Roeder,  G.D. Reeves, E.T. Sarris, I. Sandahl, F. Søraas, J. Woch, and Q.-G. Zong: First results from the RAPID imaging energetic particle spectrometer on board Cluster. Ann. Geophys., 19, 1355-1366, 2001.
  24. Yahnin, A.G., V.A. Sergeev, T. Bösinger, T.I. Sergienko, I.A. Kornilov, N.L. Borodkova, M.F. Thomsen, R.D. Belian, J.-A. Sauvaud, V.N. Lutsenko, and A.A. Skalsky: Correlated Interball/ground-based observations of isolated substorm: The pseudobreakup phase.  Ann. Geophys., 19, 687-698, 2001. 

 

Reports

  1. Aaltonen, V., J. Paatero, J. Hatakka, I. Usoskin, and R. Pöllänen: Kosminen säteily ja pintailman 7Be-pitoisuus Suomessa vuosina 1983-1999. XX Geofysiikan Päivät Helsingissä 15.-16.5.2001, toim. M-L. Airo ja S. Mertanen, Geofysiikan seura, Helsinki, pp. 13-18, 2001.  
  2. Bobik, P., K. Kudela, and I.G. Usoskin:  Geomagnetic cutoff Penumbra structure: Approach by transmissivity function. Proc. of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001, vol. 10, session SH, 4056-4059, 2001.
  3. Elo, A.-M. and H. Arvela: Direction distributions of air showers observed with the Turku air shower array.  Proc. of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001, vol. 9, session HE, 598-601, 2001.
  4. Gladysheva, O.G., G.E. Kocharov, G.A. Kovaltsov, and I.G. Usoskin: Cosmogenic variations of nitrate abundance in polar ice. Proc. of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001, (only on CD), 172-175, 2001.
  5. Jussila, J. and H. Holma (eds): Programme, abstracts and information of the 28th Annual European Meeting on Atmospheric Studies by Optical Methods, August 19 - 24, 2001, Oulu, Finland, 60 pages.  
  6. Mursula, K., I.G. Usoskin, and G.A. Kovaltsov: Long-term cosmic ray intensity vs. solar proxies: A simple linear relation does not work. Proc. of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001, vol. 9, session SH, 3838-3841, 2001.
  7. Usoskin, I.G., K. Alanko, K. Mursula, K. Kudela, and G.A. Kovaltsov: Variations of the heliospheric modulation strength during the neutron monitor era. Proc. of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001, vol. 9, session SH, 3810-3813, 2001.
  8. Usoskin, I.G., K. Mursula, and G.A. Kovaltsov: Odd and even cycles in cosmic rays and solar activity. Proc. of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001, vol. 9, session SH, 3791-3794, 2001.
  9. Vashenyuk, E.V., B.B. Gvozdevsky, V.V. Phelkin, I.G. Usoskin, K. Mursula, and G.A. Kovaltsov: The ground-level enhancement of 14 July 2000: Explaining the difference between near-by neutron monitors at Apatity and Oulu. Proc. of the 27th International Cosmic Ray Conference, Hamburg, Germany, 7-15 August 2001, vol. 10, session SH, 3383-3386, 2001.