7 papers were published in 1998.
Fujii, R., S. Nozawa, S. C. Buchert, N. Matuura, and A. Brekke,
Study on neutral wind contribution to the electrodynamics in the polar ionosphere using EISCAT CP-1 data,
J. Geophys. Res., 103, 14,731-14,739, 1998.
Fujii, R., S. Nozawa, S. C. Buchert, N. Matuura, and A. Brekke,
The motion of ions in the auroral ionosphere,
J. Geophys. Res., 103, 20,685-20,695, 1998.
Lühr, H., M. Rother, T. Iyemori, T.L. Hansen and R.P. Lepping,
Superposed epoch analysis applied to large-amplitude travelling convection vortices.
Ann. Geophys., 16, 743-753, 1998.
Shibata, T., R. Fujii, and K. Schlegel,
Vertical attenuation rate of atmospheric gravity waves in the lower-F region observed with the EISCAT,
Proc. NIPR Symp. Atmos. Phys., 12, 131-137,1998.
(This is an extended abstract paper, but reviewed by referees)
Maeda, S., H. Fujiwara, and S. Nozawa,
Dayside neutral winds in the quiet E-region deduced from the EISCAT IS radar data,
Proc. NIPR Symp. Upper Atmos. Phys., 12, 138-143,1998.
(This is an extended abstract paper, but reviewed by referees)
Nishino, M., S. Nozawa, and J. A. Holtet,
Daytime ionospheric absorptions in the polar cap associated with poleward drifting F-region plasma patches,
Earth Planets Space, 50, 107-117, 1998.
Fujii R.,
Study of polar upper atmosphere using radars in the northern polar region,
MIA, 58, 9-12, 1998(日本語).