2014

12 papers were published in 2014.

Refereed Journal Articles

1. Takahashi,T., S.Nozawa, M.Tsutsumi, C.Hall, S.Suzuki, T.T.Tsuda, T.D.Kawahara, N.Saito, S.Oyama, S.Wada, T.Kawabata, H.Fujiwara, A.Brekke, A.Manson, C.Meek, R.Fujii
A case study of gravity wave dissipation in the polar MLT region using sodium LIDAR and radar data.
Annales Geophysicae, 32, 1195-1205, 2014.

2. Shiokawa,K., A.Hashimoto, T.Hori, K.Sakaguchi, Y.Ogawa, E.Donovan, E.Spanswick, M.Connors, Y.Otsuka, S.-I.Oyama, S.Nozawa, K.McWilliams
Auroral fragmentation into patches.
Journal of Geophysical Research: Space Physics, 119, 8249-8261, 2014.

3. Fujiwara,H., S.Nozawa, Y.Ogawa, R.Kataoka, Y.Miyoshi, H.Jin, H.Shinagawa
Extreme ion heating in the dayside ionosphere in response to the arrival of a coronal mass ejection on 12 March 2012.
Annales Geophysicae, 32, 831-839, 2014.

4. Ishida,T., Y.Ogawa, A.Kadokura, Y.Hiraki, I.Haggstrom
Seasonal variation and solar activity dependence of the quiet-time ionospheric trough.
Journal of Geophysical Research: Space Physics, 119, 6774-6783, 2014.

5. Ogawa,Y., T.Motoba, S.C.Buchert, I.Haggstrom, S.Nozawa
Upper atmosphere cooling over the past 33 years.
Geophysical Research Letters, 41, 5629-5635, 2014.

6. Oyama,S., Y.Miyoshi, K.Shiokawa, J.Kurihara, T.T.Tsuda, B.J.Watkins
Height-dependent ionospheric variations in the vicinity of nightside poleward expanding aurora after substorm onset.
Journal of Geophysical Research: Space Physics, 119, 4146-4156, 2014.

7. Sakai,J., K.Hosokawa, S.Taguchi, Y.Ogawa
Storm-time enhancements of 630.0-nm airglow associated with polar cap patches,
Journal of Geophysical Research: Space Physics, 119, 2214-2228, 2014.

8. Nozawa,S., T.Kawahara, N.Saito, C.Hall, T.Tsuda, T.Kawabata, S.Wada, A.Brekke, T.Takahashi, H.Fujiwara, Y.Ogawa, R.Fujii
Variations of the neutral temperature and sodium density between 80 and 107km above Tromsoe during the winter of 2010-2011 by a new solid state sodium LIDAR.
Journal of Geophysical Research: Space Physics, 119, 441-451, 2014.

9. Vickers,H., M.J.Kosch, E.Sutton, L.Bjoland, Y.Ogawa, C.La Hoz
A solar cycle of upper thermosphere density observations from the EISCAT Svalbard Radar.
Journal of Geophysical Research: Space Physics, 119, 6833-6845, 2014.

10. Kero,A., J.Vierinen, D.McKay-Bukowski, C.-F.Enell, M.Sinor, L.Roininen, Y.Ogawa
Ionospheric electron density profiles inverted from a spectral riometer measurement.
Geophysical Research Letters, 41, 5370-5375, 2014.

11. Kosch,M.J., H.Vickers, Y.Ogawa, A.Senior, N.Blagoveshchenskaya
First observation of the anomalous electric field in the topside ionosphere by ionospheric modification over EISCAT.
Geophysical Research Letters,41, 7427-7435, 2014.

12. Kosch,M.J., C.Bryers, M.T.Rietveld, T.K.Yeoman, Y.Ogawa
Aspect angle sensitivity of pump-induced optical emissions at EISCAT.
Earth, Planets and Space, 66, 159, 2014

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