Researcher at Izaña GAW Station since 1995 responsible for the brewer spectroradiometer. Scientific coordinator of the Spanish Brewer Spectroradiometer Network since 1999 to 2004 and the Spanish UV Index forecast program. Principal investigator of the EU-projects; SUVDAMA, SUSPEN and REVUE. Since 2003 scientific manager of the RBCC-E responsible of the organization of RBCC-E campaigns (www.rbcc-e.org) including the participation on SAUNA-I and II. Since 2005 member of the WMO Ozone Scientific Advisory Group (O3 SAG) .