The Earth's ionosphere embedded in the thermosphere is a coupled system influenced by solar and magnetospheric processes from above, as well as by upward propagating disturbances from below. This open session is suitable for contributions on all aspects of ionospheric physics. The session invites (multi)instrumental observation (e.g. ground-based optics and magnetometers, radio wave techniques, satellite and rocket in-situ), simulation and modelling studies that address the dynamics of the ionosphere, concerning transient events, plasma waves and irregularities, as well as large-scale dynamics and long-term variations. Contributions dealing with magnetospheric forcing are sought particularly in the areas of ionospheric phenomena caused by magnetospheric storms and substorms, current closure, the deposition of energy in its various forms, and the interaction of electromagnetic waves with the ionosphere. New results that focus on investigation of latitudinal, seasonal and hemispherical effects of the storms and substorms on ionosphere are especially appreciated. As for atmospheric forcing, contributions are sought that focus on atmospheric waves, wave-wave and wave-mean flow interactions, atmospheric electricity and electrodynamical coupling processes. New results on MLT feeding (wave penetration and secondary wave generation) of ionospheric disturbances and the solar effect on the vertical propagation conditions of the atmospheric waves are particularly welcome.

Convener: Dalia Buresova | Co-conveners: David Altadill, A. Belehaki, Andrew Dimmock, Andrew J. Kavanagh, Mirko Piersanti
| Wed, 10 Apr, 14:00–18:00
Room L1
| Attendance Mon, 08 Apr, 16:15–18:00
Hall X4

Wednesday, 10 April 2019 | Room L1

Chairperson: Dalia Buresova
Open Session on the Ionosphere and Thermosphere
14:00–14:15 |
Anita Aikio, Heikki Vanhamäki, Abiyot Workayehu, ilkka Virtanen, Kirsti Kauristie, Liisa Juusola, Stephan Buchert, and David Knudsen
14:15–14:30 |
Karl M. Laundal, Spencer Hatch, and Therese Moretto
14:30–14:45 |
Jone Peter Reistad, Karl Magnus Laundal, Anders Ohma, Nikolai Østgaard, Evan G Thomas, Stein Haaland, Kjellmar Oksavik, and Steve Milan
15:00–15:15 |
Veronika Barta, Dávid Koronczay, Kitti Berényi, Árpád Kis, Gabriella Sátori, and Earle Williams
15:15–15:30 |
Michael Danielides, Vladimir Skripachev, and Alexander Zhukov
Coffee break
Chairperson: Andrew P. Dimmock
Dynamics of ionospheric currents and their associated ground effects
16:15–16:30 |
Arthur Amaral Ferreira, Claudia Borries, and Renato Alves Borges
16:30–16:45 |
Neil Rogers, Jim Wild, and Emma Eastoe
16:45–17:00 |
The influence of substorms on extreme rates of change of the surface magnetic field in the U.K.
Mervyn Freeman, Colin Forsyth, and Jonathan Rae
17:00–17:15 |
Stavros Dimitrakoudis, David K. Milling, Ian R. Mann, Leonid Olifer, and Andy Kale
17:15–17:30 |
Malcolm Dunlop, Junying Yang, Mervyn Freeman, Neil Rogers, Jim Wild, Jonathan Rae, Jinbin cao, Hermann Luehr, and Chao Xiong
17:30–17:45 |
Ilkka Virtanen, Anita Aikio, Lassi Roininen, Sari Lasanen, Björn Gustavsson, and Habtamu Tesfaw