Data Sponsorship Statement for Brewer ozone data (Updated 2012-01-11) 1. Complete Agency and Contact information dr. Henri Diémoz Sezione Agenti Fisici - Monitoraggio solare e atmosferico ARPA Valle d'Aosta loc. Grande Charrière 44, Saint-Christophe (11020), Italy Tel: +39 0165 278576 - Fax: +39 0165 278555 http://www.uv-index.vda.it 2. List of all platforms Saint-Christophe (Aosta) 45.7422N, 7.3570E, 570 m asl Brewer MKIV #066 SN. 90-066 The Brewer #066 has been operating in Saint-Christophe since 2007 (when it was moved from Ispra-JRC) 3. Instrument maintenance and calibration information IOS intercomparisons: Apr 2007 Jun 2009 Aug 2011 Maintenance: Jul 2011 (Langley plot at Plateau Rosa - 3500 m asl) 4. Data processing information Version 1.0: Brewer Data Processing Software Version 1.1 (Jan 2010): Brewer Data Processing Software, skipped neutral density filter #4 Version 1.2 (Jan 2011): 2010 revised data set (BPS as v. 1.1) Version 1.3 (Jan 2012): 2009-2011 revised data set with new IOS calibration (Aug 2011) 5. Estimation of measurement uncertainties 6. References to publications 7. Use of the data