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 2010 03 19 20 27.21 LAU 2010 03 19 21 29.57 LAU 2010 03 19 22 29.90 LAU 2010 03 19 23 27.52 LAU 2010 03 20 00 28.04 LAU 2010 03 20 01 26.49 LAU 2010 03 20 02 25.30 LAU 2010 03 20 03 24.82 LAU 2010 03 20 04 24.00 LAU 2010 03 20 05 23.47 LAU 2010 03 20 06 23.73 LAU 2010 03 20 07 23.55 LAU 2010 03 20 08 23.13 LAU 2010 03 20 09 22.93 LAU 2010 03 20 10 20.86 LAU 2010 03 20 11 18.52 LAU 2010 03 20 12 19.32 LAU 2010 03 20 13 17.80 LAU 2010 03 20 14 16.55 LAU 2010 03 20 15 21.41 LAU 2010 03 20 16 14.37 LAU 2010 03 20 17 12.57 LAU 2010 03 20 18 9.78 LAU 2010 03 20 19 8.63 LAU 2010 03 20 20 8.25 LAU 2010 03 20 21 9.90 LAU 2010 03 20 22 12.01 LAU 2010 03 20 23 14.07 LAU 2010 03 21 00 21.95 LAU 2010 03 21 01 29.47 LAU 2010 03 21 02 29.18 LAU 2010 03 21 03 28.81 LAU 2010 03 21 04 28.33 LAU 2010 03 21 05 28.42 LAU 2010 03 21 06 27.47 LAU 2010 03 21 07 26.54 LAU 2010 03 21 08 26.74 LAU 2010 03 21 09 26.62 LAU 2010 03 21 10 28.61 LAU 2010 03 21 11 28.50 LAU 2010 03 21 12 25.10 LAU 2010 03 21 13 24.77 LAU 2010 03 21 14 23.48 LAU 2010 03 21 15 22.22 LAU 2010 03 21 16 23.95 LAU 2010 03 21 17 22.23 LAU 2010 03 21 18 16.14 LAU 2010 03 21 19 20.42 LAU 2010 03 21 20 25.23 LAU 2010 03 21 21 24.05 LAU 2010 03 21 22 23.45 LAU 2010 03 21 23 24.78 LAU 2010 03 22 00 23.90 LAU 2010 03 22 01 24.34 LAU 2010 03 22 02 23.98 LAU 2010 03 22 03 24.29 LAU 2010 03 22 04 23.95 LAU 2010 03 22 05 23.28 LAU 2010 03 22 06 21.87 LAU 2010 03 22 07 21.78 LAU 2010 03 22 08 22.26 LAU 2010 03 22 09 21.78 LAU 2010 03 22 10 21.90 LAU 2010 03 22 11 20.59 LAU 2010 03 22 12 20.22 LAU 2010 03 22 13 20.53 LAU 2010 03 22 14 20.47 LAU 2010 03 22 15 20.25 LAU 2010 03 22 16 20.17 LAU 2010 03 22 17 18.09 LAU 2010 03 22 18 18.97 LAU 2010 03 22 19 18.54 LAU 2010 03 22 20 18.74 LAU 2010 03 22 21 20.49 LAU 2010 03 22 22 21.11 LAU 2010 03 22 23 21.30 LAU 2010 03 23 00 21.60 LAU 2010 03 23 01 21.72 LAU 2010 03 23 02 21.89 LAU 2010 03 23 03 21.15 LAU 2010 03 23 04 20.41 LAU 2010 03 23 05 20.07 LAU 2010 03 23 06 19.97 LAU 2010 03 23 07 19.55 LAU 2010 03 23 08 20.20 LAU 2010 03 23 09 19.99 LAU 2010 03 23 10 20.53 LAU 2010 03 23 11 20.29 LAU 2010 03 23 12 18.74 LAU 2010 03 23 13 19.17 LAU 2010 03 23 14 13.27 LAU 2010 03 23 15 14.83 LAU 2010 03 23 16 11.47 LAU 2010 03 23 17 14.04 LAU 2010 03 23 18 17.27 LAU 2010 03 23 19 19.94 LAU 2010 03 23 20 21.37 LAU 2010 03 23 21 22.47 LAU 2010 03 23 22 21.96 LAU 2010 03 23 23 21.40 LAU 2010 03 24 00 21.73 LAU 2010 03 24 01 21.65 LAU 2010 03 24 02 21.66 LAU 2010 03 24 03 21.29 LAU 2010 03 24 04 21.76 LAU 2010 03 24 05 21.38 LAU 2010 03 24 06 19.82 LAU 2010 03 24 07 17.57 LAU 2010 03 24 08 17.20 LAU 2010 03 24 09 16.75 LAU 2010 03 24 10 17.63 LAU 2010 03 24 11 17.87 LAU 2010 03 24 12 18.21 LAU 2010 03 24 13 16.49 LAU 2010 03 24 14 19.58 LAU 2010 03 24 15 19.31 LAU 2010 03 24 16 19.75 LAU 2010 03 24 17 19.17 LAU 2010 03 24 18 19.92 LAU 2010 03 24 19 19.17 LAU 2010 03 24 20 18.75 LAU 2010 03 24 21 19.03 LAU 2010 03 24 22 19.02 LAU 2010 03 24 23 19.14 LAU 2010 03 25 00 20.51 LAU 2010 03 25 01 21.24 LAU 2010 03 25 02 22.51 LAU 2010 03 25 03 23.31 LAU 2010 03 25 04 22.40 LAU 2010 03 25 05 17.92 LAU 2010 03 25 06 15.76 LAU 2010 03 25 07 12.88 LAU 2010 03 25 08 11.39 LAU 2010 03 25 09 12.29 LAU 2010 03 25 10 19.31 LAU 2010 03 25 11 19.42 LAU 2010 03 25 12 18.74 LAU 2010 03 25 13 17.71 LAU 2010 03 25 14 15.91 LAU 2010 03 25 15 15.40 LAU 2010 03 25 16 15.38 LAU 2010 03 25 17 16.38 LAU 2010 03 25 18 16.28 LAU 2010 03 25 19 16.30 LAU 2010 03 25 20 15.61 LAU 2010 03 25 21 16.03 LAU 2010 03 25 22 15.64 LAU 2010 03 25 23 15.53 LAU 2010 03 26 00 15.31 LAU 2010 03 26 01 14.84 LAU 2010 03 26 02 14.70 LAU 2010 03 26 03 14.60 LAU 2010 03 26 04 15.25 LAU 2010 03 26 05 16.37 LAU 2010 03 26 06 17.10 LAU 2010 03 26 07 17.06 LAU 2010 03 26 08 17.43 LAU 2010 03 26 09 17.78 LAU 2010 03 26 10 19.95 LAU 2010 03 26 11 21.19 LAU 2010 03 26 12 20.76 LAU 2010 03 26 13 21.01 LAU 2010 03 26 14 22.76 LAU 2010 03 26 15 22.87 LAU 2010 03 26 16 22.50 LAU 2010 03 26 17 18.98 LAU 2010 03 26 18 14.57 LAU 2010 03 26 19 14.48 LAU 2010 03 26 20 15.63 LAU 2010 03 26 21 16.10 LAU 2010 03 26 22 16.42 LAU 2010 03 26 23 16.93 LAU 2010 03 27 00 17.76 LAU 2010 03 27 01 17.92 LAU 2010 03 27 02 16.48 LAU 2010 03 27 03 16.72 LAU 2010 03 27 04 16.93 LAU 2010 03 27 05 15.85 LAU 2010 03 27 06 14.02 LAU 2010 03 27 07 9.59 LAU 2010 03 27 08 6.66 LAU 2010 03 27 09 14.08 LAU 2010 03 27 10 16.42 LAU 2010 03 27 11 16.27 LAU 2010 03 27 12 14.17 LAU 2010 03 27 13 11.24 LAU 2010 03 27 14 10.55 LAU 2010 03 27 15 17.32 LAU 2010 03 27 16 16.29 LAU 2010 03 27 17 17.61 LAU 2010 03 27 18 17.53 LAU 2010 03 27 19 16.84 LAU 2010 03 27 20 17.92 LAU 2010 03 27 21 19.30 LAU 2010 03 27 22 20.11 LAU 2010 03 27 23 19.68 LAU 2010 03 28 00 20.59 LAU 2010 03 28 01 21.29 LAU 2010 03 28 02 21.46 LAU 2010 03 28 03 21.47 LAU 2010 03 28 04 20.78 LAU 2010 03 28 05 20.05 LAU 2010 03 28 06 18.56 LAU 2010 03 28 07 17.60 LAU 2010 03 28 08 13.47 LAU 2010 03 28 09 9.87 LAU 2010 03 28 10 10.52 LAU 2010 03 28 11 9.53 LAU 2010 03 28 12 10.03 LAU 2010 03 28 13 10.15 LAU 2010 03 28 14 9.80 LAU 2010 03 28 15 6.28 LAU 2010 03 28 16 4.91 LAU 2010 03 28 17 2.38 LAU 2010 03 28 18 4.41 LAU 2010 03 28 19 3.61 LAU 2010 03 28 20 5.48 LAU 2010 03 28 21 13.84 LAU 2010 03 29 00 23.03 LAU 2010 03 29 01 23.52 LAU 2010 03 29 02 24.35 LAU 2010 03 29 03 24.26 LAU 2010 03 29 04 23.91 LAU 2010 03 29 05 23.67 LAU 2010 03 29 06 20.68 LAU 2010 03 29 07 18.77 LAU 2010 03 29 08 18.34 LAU 2010 03 29 09 18.15 LAU 2010 03 29 10 16.94 LAU 2010 03 29 11 15.60 LAU 2010 03 29 12 15.74 LAU 2010 03 29 13 15.23 LAU 2010 03 29 14 16.64 LAU 2010 03 29 15 15.07 LAU 2010 03 29 16 15.34 LAU 2010 03 29 17 16.71 LAU 2010 03 29 18 17.95 LAU 2010 03 29 19 16.57 LAU 2010 03 29 20 17.61 LAU 2010 03 29 21 19.16 LAU 2010 03 29 22 18.97 LAU 2010 03 29 23 19.19 LAU 2010 03 30 00 19.10 LAU 2010 03 30 01 19.64 LAU 2010 03 30 02 19.21 LAU 2010 03 30 03 18.76 LAU 2010 03 30 04 18.35 LAU 2010 03 30 05 16.33 LAU 2010 03 30 06 16.10 LAU 2010 03 30 07 18.60 LAU 2010 03 30 08 18.74 LAU 2010 03 30 09 19.75 LAU 2010 03 30 10 20.43 LAU 2010 03 30 11 21.97 LAU 2010 03 30 12 20.63 LAU 2010 03 30 13 21.25 LAU 2010 03 30 14 22.48 LAU 2010 03 30 15 23.59 LAU 2010 03 30 16 23.03 LAU 2010 03 30 17 23.63 LAU 2010 03 30 18 23.54 LAU 2010 03 30 19 23.92 LAU 2010 03 30 20 23.20 LAU 2010 03 30 21 22.94 LAU 2010 03 30 22 23.81 LAU 2010 03 30 23 23.95 LAU 2010 03 31 00 23.40 LAU 2010 03 31 01 23.51 LAU 2010 03 31 02 22.96 LAU 2010 03 31 03 22.40 LAU 2010 03 31 04 20.89 LAU 2010 03 31 05 22.03 LAU 2010 03 31 06 21.23 LAU 2010 03 31 07 20.96 LAU 2010 03 31 08 19.82 LAU 2010 03 31 09 19.79 LAU 2010 03 31 10 18.86 LAU 2010 03 31 11 16.94 LAU 2010 03 31 12 17.49 LAU 2010 03 31 13 16.36 LAU 2010 03 31 14 18.15 LAU 2010 03 31 15 17.49 LAU 2010 03 31 16 17.02 LAU 2010 03 31 17 17.58 LAU 2010 03 31 18 15.95 LAU 2010 03 31 19 15.28 LAU 2010 03 31 20 16.34 LAU 2010 03 31 21 15.02 LAU 2010 03 31 22 17.67 LAU 2010 03 31 23 18.84