RA III Committee on Infrastructure Members Dr Luciano VIDAL - Vice-chair- ( Argentina ) Mr Gaston TORRES ARAVENA - Chair- ( Chile ) Documents and Publications Related News No related news found. Related Meetings No related meetings found. Related Groups RA III Focal Point on Operational Weather Radar RA III Focal Point on Data Policy RA III Expert Team on Regional Weather, Climate and Hydrological Modelling RA III Expert Team on Observations Exchange and Information System RA III Expert Team on WMO Integrated Observing System