Items where Author is "Seppälä, A."

Newnham, D.A. and Clilverd, M.A. and Kosch, M. and Seppälä, A. and Verronen, P.T. (2019) Simulation study for ground-based Ku-band microwave observations of ozone and hydroxyl in the polar middle atmosphere. Atmospheric Measurement Techniques, 12 (2). pp. 1375-1392. ISSN 1867-1381

Seppälä, A. and Clilverd, Mark A. and Beharrell, Mathew James and Rodger, Craig J. and Verronen, P. T. and Andersson, M. E. and Newnham, D. A. (2015) Substorm-induced energetic electron precipitation : impact on atmospheric chemistry. Geophysical Research Letters, 42 (19). pp. 8172-8176. ISSN 0094-8276

Enell, C.-F. and Verronen, P.T. and Beharrell, M.J. and Vierinen, J.P. and Kero, A. and Seppälä, A. and Honary, F. and Ulich, T. and Turunen, E. (2008) Case study of the mesospheric and lower thermospheric effects of solar x-ray flares: Coupled ion-neutral modelling and comparison with EISCAT and riometer measurements. Annales Geophysicae, 26 (8). pp. 2311-2321. ISSN 0992-7689

Clilverd, M. A. and Rodger, C. J. and Brundell, J. and Bähr, J. and Cobbett, N. and Moffat-Griffin, T. and Kavanagh, Andrew J. and Seppälä, A. and Thomson, N. R. and Friedel, R. W. H. and Menk, F. W. (2008) Energetic electron precipitation during substorm injection events: High-latitude fluxes and an unexpected midlatitude signature. Journal of Geophysical Research, 113 (A10). A10311. ISSN 0148-0227

Enell, C.-F. and Kero, A. and Turunen, T. and Ulich, T. and Verronen, P. T. and Seppälä, A. and Marple, S. and Honary, F. and Senior, A. (2005) Effects of D-region RF heating studied with the Sodankyla ion chemistry model. Annales Geophysicae, 23 (5). pp. 1575-1583. ISSN 0992-7689