Cafarella, L., A. Meloni, and P. Palangio, Solar cycle 22 control on daily geomagnetic variation at Terra Nova Bay (Antarctica), Annali di Geofisica, 41, 805–811, 1998.
Google Scholar
Campbell, W. H., The regular geomagnetic field variations during quiet solar conditions, in Geomagnetism, edited by J. A. Jacobs, Vol. 3, pp. 385–460, 1989.
Google Scholar
Campbell, W. H., Introduction to Geomagnetic Fields, pp. 62–102, Cambridge University Press, 1997.
Google Scholar
Chapman, S. and J. Bartels, Geomagnetism, Clarendon Press, Oxford, 1940.
Google Scholar
Detrick, D. L. and L. J. Lanzerotti, Geomagnetic quiet-time (Sq) variations at high latitudes, Geophys. Res. Lett., 28, 2581–2584, 2001.
Article
Google Scholar
Friis-Christensen, E. and J. Wilhjelm, Polar cap currents for different directions of the interplanetary magnetic field in the Y-Z plane, J. Geophys. Res., 80, 1248–1260, 1975.
Article
Google Scholar
Hibberd, F. H., The geomagnetic Sq variation—annual, semiannual and solar cycle variations and ring current effects, J. Atmos. Terres. Phys., 47, 341–352, 1985.
Article
Google Scholar
Holme, R., N. Olsen, M. Rother, and H. Lühr, CO2—A CHAMP magnetic field model, in First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies, edited by C. Reigber, H. Lühr, and P. Schwintzer, pp. 220–225, Springer, 2003.
Google Scholar
Kauristie, K., T. I. Pulkkinen, R. J. Pellinen, and H. J. Opgenoorth, What can we tell about global auroral-electrojet activity from a single meridional magnetometer data?, Ann. Geophys., 14, 1177–1185, 1996.
Article
Google Scholar
Lühr, H., A. Aylward, S. C. Bucher, A. Pajunpää, K. Pajunpää, T. Holmboe, and S. M. Zalewski, Westward moving dynamic substorm features observed with the IMAGE magnetometer network and other ground-based instruments, Ann. Geophys., 16, 425–440, 1998.
Article
Google Scholar
Matsushita, S., Solar quiet and lunar daily variation fields, in Physics of Geomagnetic Phenomena—International Geophysics Series, Vol. 11-I, edited by S. Matsushita and W. H. Campbell, pp. 301–424, 1967.
Google Scholar
Nagata, T. and S. Kokubun, An additional geomagnetic daily variation field (S
pq
-field) in the polar region on geomagnetically quiet day, Rept. Ionosph. Space Res. Japan, 16, 256–274, 1962.
Google Scholar
Ritter, P., H. Lühr, A. Viljanen, O. Amm, A. Pulkkinen, and I. Sillanpää, Ionospheric currents estimated simultaneously from CHAMP satellite and IMAGE ground based magnetic field measurements: a statistical study at auroral latitudes, Ann. Geophys., 2004 (in press).
Viljanen, A. and L. Häkkinen, IMAGE magnetometer network, in Satellite-Ground Based Coordination Sourcebook, edited by M. Lockwood, M. N. Wild, and H. J. Opgenoorth, ESA publications SP-1198, p. 111–117, 1997.
Xu, W.-Y., Polar region Sq, in Quiet Daily Geomagnetic Fields, edited by W. H. Campbell, pp. 317–393, Birkhäuser Verlag, Basel, 1989.
Google Scholar