Re: GBON compliance by Timo Proescholdt - Thursday, 30 October 2025, 1:25 PM Number of replies: 0 Dear Martina,The WDQMS GBON module uses the station classs, as defined by OSCAR/Surface, which in turn uses the observing method as part of the GBON upper-air station class definition.with kind regards,Timo Permalink Show parent Reply