9 papers were published in 2004.
1. Oyama,S., C.Lathuillere, S.Maeda, B.J.Watkins
Summer-winter dependences of day-night differences in the ion temperature in the polar upper F region.
Geophysical Research Letters, 31, 2004.
2. Fujiwara,H., S.Maeda, M.Suzuki, S.Nozawa, H.Fukunishi
Estimates of electromagnetic and turbulent energy dissipation rates under the existence of strong wind shears in the polar lower thermosphere from the EISCAT Svalbard radar observations.
Journal of Geophysical Research: Space Physics, 109, 2004.
3. Manson,A.H., C.E.Meek, C.M.Hall, S.Nozawa, N.J.itchell, D.Pancheva, W.Singer, P. Hoffmann
Mesopause dynamics from the scandinavian triangle of radars within the PSMOS-DATAR Project.
Annales Geophysicae, 22, 367-386, 2004.
4. Ogawa,T., S.Nozawa, M.Tsutsumi, N.F.Arnold, N.Nishitani, N.Sato, A.S.Yukimatu
Arctic and Antarctic polar mesosphere summer echoes observed with oblique incidence HF radars: Analysis using simultaneous MF and VHF radar data.
Annales Geophysicae, 22, 4049-4059, 2004.
5. Kojima,M., A.R.Breen, K.Fujiki, K.Hayashi, T.Ohmi, M.Tokumaru
Fast solar wind after the rapid acceleration.
Journal of Geophysical Research: Space Physics, 109, 2004.
6. Buchert,S.C., Y.Ogawa, R.Fujii, A.P.van Eyken
Observations of diverging field-aligned ion flow with the ESR.
Annales Geophysicae, 22, 889-899, 2004.
7. Koizumi,N., S.Okano, T.Sakanoi, M.Taguchi, T.Aso
Auroral O+ 732/733 nm emission and its relation to ion upflow.
Advances in polar upper atmosphere research, 18, 96-104, 2004.
8. Gustavsson,B., T.Sergienko, I.Hagstrom, F.Honary, T.Aso
Simulation of high energy tail of electron distribution function.
Advances in polar upper atmosphere research, 18, 1-9, 2004.
9. Fujii,R. N.Sato
Upper atmosphere studies viewing from both polar regions, from IGY to IPY-4.
(両極からみたIGYからIPY-4への超高層物理学研究)
学術月報, 57(5), 391-398, 2004.05. (日本語)