Dear IROWG, please have a look at the (almost final) *conference program* at https://opacirowg2026.uni-graz.at/en/programme/ or directly at https://static.uni-graz.at/fileadmin/_files/_event_sites/_opacirowg2026/OPAC... We have been able to allocate a talk for everyone, who wanted a talk - and a poster, for everyone who wanted a poster (poster boards are 140 cm high and 90 cm wide). I hope that you don't mind if you should find your contribution as an "invited" one. By default, the *hotel registration* is open until *21:00* (9 pm). If you arrive later - please inform the hotel (and also us). In the extremely unlikely case that you have not *registered *yet - or signed on for the *social events* - please do so. There is *no on-site registration*. On *Saturday* afternoon we will make a *small **hiking tou**r* in the surrounding vineyards (picture attached), where we will also learn how the wine is grown (before we taste it at the conference dinner and on Monday). You don't need high-mountain equipment, but some appropriate shoes and rain protection. This site is in German only, but the pictures at the bottom of the page should give you an idea what to expect: https://www.fachschulen.steiermark.at/cms/beitrag/12794339/159651264/ We are looking forward to welcoming you in Austria - next week! Uli Foelsche, on behalf of the organizing committee. U. Foelsche, J. Danzer, M. Schwärz, (WEGC & IPhys UniGraz, AT), OPAC Chairs H. Shao (Naval Research Lab., USA), IROWG Co-Chair A.J. Mannucci (JPL, Pasadena, USA), IROWG-CGMS Rapporteur -- ************************************************************************** - Ulrich Foelsche - University of Graz - Institute of Physics, Department of Astrophysics and Geophysics (AGP) - Universitaetsplatz 5, 8010 Graz, Austria - Wegener Center for Climate and Global Change (WEGC) - Brandhofgasse 5, 8010 Graz, Austria - Tel: +43-316-380-8590 - E-mail: ulrich.foelsche@uni-graz.at **************************************************************************