1

Topical Union Session
Conveners: W. Schmutz , B. J. Sohn , J. Fischer 
Oral Programme
 / Mon, 06 Aug, 09:30–11:00  / Room Domus Variabilis
 / Tue, 07 Aug, 08:45–10:30  / Room Domus Variabilis
 / Wed, 08 Aug, 08:45–10:00  / Room Domus Variabilis
 / Fri, 10 Aug, 08:45–09:30  / Room Domus Variabilis
Current Problems in Atmospheric Radiation. This session presents plenary lectures on outstanding issues that should be shared by all participants.