S-T interactions and ionospheric effects in the current solar-cycle. Chair: Paul Prikryl, e-mail: paul.prikryl @ unb.ca - co chair: Emilia Correira: e-mail: ecorreia @ craam.mackenzie.br
Lower atmosphere delay in GNSS based systems (water vapor reconstruction etc....). Chair: Monia Negusini, e-mail: m.negusini @ ira.inaf.it
Modelling and models testing. Chair: Marcin Grzesiak, e-mail: pajak @ cbk.waw.pl - co chair: Luca Spogli, email: luca.spogli @ ingv.it
Data management strategy Chair: Vincenzo Romano, email: vincenzo.romano @ ingv.it - co chair: Pierre Cilliers, e-mail: pjcilliers @ sansa.org.za
Coordination with other programs inside and outside SCAR (e.g. URSI, CAWSES II, SuperDARN, EISCAT 3D, ...). Chair: Giorgiana De Franceschi, e-mail: giorgiana.defranceschi @ ingv.it - Lucilla Alfonsi, e-mail; lucilla.alfonsi @ ingv.it