e data are made available to the scientific community and public with the un derstanding that authors of publications and presentations will contact the PI t o obtain up-to-date information on the latest version of the data during the early stages of their analysis. Manuscripts that employ these data sh ould be reviewed by the PI before submission to enure the quality and limitation of the data are represented. Data Acknolowedegment: The Lauder surface ozone monitoring is a collaboration be tween NOAA-GML and NIWA (New Zealand's National Institude of Water & Atmospheric Research). Data collection is made possible thanks to efforts of Dan Smale (dan.smale@niwa.co.nz) and Dr. Richard Querel (Richard.Querel@niwa.co. nz) Data Disclaimer: Data has undergone extensive quality checks and is available fr om NOAA-GML and WDCGG. However, there still exists the potential for these data STN YEAR MON DAY HR O3(PPB) LAU 2008 12 09 20 7.88 LAU 2008 12 09 21 13.31 LAU 2008 12 09 22 14.48 LAU 2008 12 09 23 16.79 LAU 2008 12 10 00 19.40 LAU 2008 12 10 01 20.52 LAU 2008 12 10 02 22.53 LAU 2008 12 10 03 22.08 LAU 2008 12 10 04 23.05 LAU 2008 12 10 05 23.34 LAU 2008 12 10 06 22.97 LAU 2008 12 10 07 23.55 LAU 2008 12 10 08 23.01 LAU 2008 12 10 09 20.22 LAU 2008 12 10 10 6.73 LAU 2008 12 10 11 6.78 LAU 2008 12 10 12 6.74 LAU 2008 12 10 13 6.66 LAU 2008 12 10 14 6.97 LAU 2008 12 10 15 7.23 LAU 2008 12 10 16 7.27 LAU 2008 12 10 17 7.18 LAU 2008 12 10 18 6.94 LAU 2008 12 10 19 6.67 LAU 2008 12 10 20 6.56 LAU 2008 12 10 21 6.66 LAU 2008 12 10 22 6.69 LAU 2008 12 10 23 6.80 LAU 2008 12 11 00 6.96 LAU 2008 12 11 01 7.13 LAU 2008 12 11 02 7.12 LAU 2008 12 11 03 7.16 LAU 2008 12 11 04 7.20 LAU 2008 12 11 05 6.92 LAU 2008 12 11 06 6.76 LAU 2008 12 11 07 6.55 LAU 2008 12 11 08 6.50 LAU 2008 12 11 09 6.41 LAU 2008 12 11 10 6.35 LAU 2008 12 11 11 6.33 LAU 2008 12 11 12 6.36 LAU 2008 12 11 13 6.48 LAU 2008 12 11 14 6.41 LAU 2008 12 11 15 6.34 LAU 2008 12 11 16 6.29 LAU 2008 12 11 17 6.24 LAU 2008 12 11 18 6.27 LAU 2008 12 11 19 6.46 LAU 2008 12 11 20 6.52 LAU 2008 12 11 21 6.41 LAU 2008 12 11 22 6.41 LAU 2008 12 11 23 6.36 LAU 2008 12 12 00 6.40 LAU 2008 12 12 01 6.40 LAU 2008 12 12 02 6.45 LAU 2008 12 12 03 6.39 LAU 2008 12 12 04 6.45 LAU 2008 12 12 05 6.46 LAU 2008 12 12 06 6.34 LAU 2008 12 12 07 6.38 LAU 2008 12 12 08 6.24 LAU 2008 12 12 09 6.22 LAU 2008 12 12 10 6.29 LAU 2008 12 12 11 6.20 LAU 2008 12 12 12 6.14 LAU 2008 12 12 13 6.13 LAU 2008 12 12 14 6.11 LAU 2008 12 12 15 6.06 LAU 2008 12 12 16 6.10 LAU 2008 12 12 17 6.04 LAU 2008 12 12 18 6.09 LAU 2008 12 12 19 6.14 LAU 2008 12 12 20 6.23 LAU 2008 12 12 21 6.26 LAU 2008 12 12 22 6.34 LAU 2008 12 12 23 6.51 LAU 2008 12 13 00 6.64 LAU 2008 12 13 01 6.78 LAU 2008 12 13 02 6.88 LAU 2008 12 13 03 6.89 LAU 2008 12 13 04 6.84 LAU 2008 12 13 05 6.78 LAU 2008 12 13 06 6.64 LAU 2008 12 13 07 6.48 LAU 2008 12 13 08 6.45 LAU 2008 12 13 09 6.49 LAU 2008 12 13 10 6.44 LAU 2008 12 13 11 6.35 LAU 2008 12 13 12 6.21 LAU 2008 12 13 13 6.23 LAU 2008 12 13 14 6.26 LAU 2008 12 13 15 6.18 LAU 2008 12 13 16 6.09 LAU 2008 12 13 17 6.02 LAU 2008 12 13 18 6.07 LAU 2008 12 13 19 6.30 LAU 2008 12 13 20 6.36 LAU 2008 12 13 21 6.43 LAU 2008 12 13 22 6.53 LAU 2008 12 13 23 6.63 LAU 2008 12 14 00 6.78 LAU 2008 12 14 01 6.85 LAU 2008 12 14 02 6.92 LAU 2008 12 14 03 6.97 LAU 2008 12 14 04 6.88 LAU 2008 12 14 05 6.81 LAU 2008 12 14 06 6.70 LAU 2008 12 14 07 6.67 LAU 2008 12 14 08 6.56 LAU 2008 12 14 09 6.21 LAU 2008 12 14 10 6.05 LAU 2008 12 14 11 6.05 LAU 2008 12 14 12 6.03 LAU 2008 12 14 13 5.87 LAU 2008 12 14 14 5.98 LAU 2008 12 14 15 6.34 LAU 2008 12 14 16 6.14 LAU 2008 12 14 17 5.98 LAU 2008 12 14 18 6.11 LAU 2008 12 14 19 6.22 LAU 2008 12 14 20 6.39 LAU 2008 12 14 21 6.40 LAU 2008 12 14 22 6.45 LAU 2008 12 14 23 6.60 LAU 2008 12 15 00 6.72 LAU 2008 12 15 01 6.90 LAU 2008 12 15 02 7.87 LAU 2008 12 15 03 6.81 LAU 2008 12 15 04 7.73