1. S-T interactions and ionospheric effects in the current solar-cycle.
    Chair: Paul Prikryl, e-mail:  This email address is being protected from spambots. You need JavaScript enabled to view it. - co chair: Emilia Correira: e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

  2. Lower atmosphere delay in GNSS based systems (water vapor reconstruction etc....).
    Chair: Monia Negusini, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

  3. Modelling and models testing.
    Chair: Marcin Grzesiak, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. - co chair: Luca Spogli, email: This email address is being protected from spambots. You need JavaScript enabled to view it.

  4. Data management strategy
    Chair: Vincenzo Romano, email: This email address is being protected from spambots. You need JavaScript enabled to view it. - co chair: Pierre Cilliers, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

  5. Coordination with other programs inside and outside SCAR (e.g. URSI, CAWSES II, SuperDARN, EISCAT 3D, ...).
    Chair: Giorgiana De Franceschi, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. - Lucilla Alfonsi, e-mail; This email address is being protected from spambots. You need JavaScript enabled to view it.