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 2021 12 01 00 14.97 LAU 2021 12 01 01 15.32 LAU 2021 12 01 02 15.48 LAU 2021 12 01 03 15.34 LAU 2021 12 01 04 14.67 LAU 2021 12 01 05 14.18 LAU 2021 12 01 06 12.97 LAU 2021 12 01 07 12.25 LAU 2021 12 01 08 10.73 LAU 2021 12 01 09 9.13 LAU 2021 12 01 10 8.11 LAU 2021 12 01 11 6.83 LAU 2021 12 01 12 5.14 LAU 2021 12 01 13 3.92 LAU 2021 12 01 14 3.86 LAU 2021 12 01 15 3.90 LAU 2021 12 01 16 4.07 LAU 2021 12 01 17 3.60 LAU 2021 12 01 18 4.61 LAU 2021 12 01 19 7.30 LAU 2021 12 01 20 10.09 LAU 2021 12 01 21 12.72 LAU 2021 12 01 22 15.20 LAU 2021 12 01 23 16.99 LAU 2021 12 02 00 18.32 LAU 2021 12 02 01 19.11 LAU 2021 12 02 02 18.88 LAU 2021 12 02 03 19.82 LAU 2021 12 02 04 18.63 LAU 2021 12 02 05 16.67 LAU 2021 12 02 06 13.50 LAU 2021 12 02 07 13.00 LAU 2021 12 02 08 12.26 LAU 2021 12 02 09 12.30 LAU 2021 12 02 10 13.75 LAU 2021 12 02 11 12.37 LAU 2021 12 02 12 9.84 LAU 2021 12 02 13 7.42 LAU 2021 12 02 14 9.18 LAU 2021 12 02 15 7.52 LAU 2021 12 02 16 4.90 LAU 2021 12 02 17 4.90 LAU 2021 12 02 18 5.89 LAU 2021 12 02 19 7.58 LAU 2021 12 02 20 9.87 LAU 2021 12 02 21 12.70 LAU 2021 12 02 22 15.04 LAU 2021 12 02 23 17.10 LAU 2021 12 03 00 19.59 LAU 2021 12 03 01 18.38 LAU 2021 12 03 02 16.80 LAU 2021 12 03 03 16.26 LAU 2021 12 03 04 15.41 LAU 2021 12 03 05 14.63 LAU 2021 12 03 06 14.71 LAU 2021 12 03 07 14.94 LAU 2021 12 03 08 14.80 LAU 2021 12 03 09 16.15 LAU 2021 12 03 10 15.81 LAU 2021 12 03 11 13.49 LAU 2021 12 03 12 13.54 LAU 2021 12 03 13 13.43 LAU 2021 12 03 14 13.02 LAU 2021 12 03 15 10.78 LAU 2021 12 03 16 8.89 LAU 2021 12 03 17 6.42 LAU 2021 12 03 18 5.41 LAU 2021 12 03 19 7.32 LAU 2021 12 03 20 10.91 LAU 2021 12 03 21 12.98 LAU 2021 12 03 22 16.16 LAU 2021 12 03 23 15.70 LAU 2021 12 04 00 18.35 LAU 2021 12 04 01 19.81 LAU 2021 12 04 02 19.30 LAU 2021 12 04 03 19.57 LAU 2021 12 04 04 21.16 LAU 2021 12 04 05 20.63 LAU 2021 12 04 06 18.72 LAU 2021 12 04 07 17.66 LAU 2021 12 04 08 16.79 LAU 2021 12 04 09 13.81 LAU 2021 12 04 10 13.21 LAU 2021 12 04 11 13.22 LAU 2021 12 04 12 12.48 LAU 2021 12 04 13 11.79 LAU 2021 12 04 14 13.42 LAU 2021 12 04 15 17.30 LAU 2021 12 04 16 20.94 LAU 2021 12 04 17 17.69 LAU 2021 12 04 18 16.03 LAU 2021 12 04 19 16.56 LAU 2021 12 04 20 18.43 LAU 2021 12 04 21 20.33 LAU 2021 12 04 22 20.91 LAU 2021 12 04 23 21.05 LAU 2021 12 05 00 18.22 LAU 2021 12 05 01 15.94 LAU 2021 12 05 02 13.57 LAU 2021 12 05 03 13.67 LAU 2021 12 05 04 13.09 LAU 2021 12 05 05 12.92 LAU 2021 12 05 06 12.97 LAU 2021 12 05 07 13.08 LAU 2021 12 05 08 12.59 LAU 2021 12 05 09 13.71 LAU 2021 12 05 10 14.04 LAU 2021 12 05 11 13.33 LAU 2021 12 05 12 12.44 LAU 2021 12 05 13 12.15 LAU 2021 12 05 14 12.02 LAU 2021 12 05 15 11.07 LAU 2021 12 05 16 10.64 LAU 2021 12 05 17 10.86 LAU 2021 12 05 18 9999.99 LAU 2021 12 05 19 10.83 LAU 2021 12 05 20 11.85 LAU 2021 12 05 21 12.19 LAU 2021 12 05 22 12.04 LAU 2021 12 05 23 13.75 LAU 2021 12 06 00 14.03 LAU 2021 12 06 01 14.12 LAU 2021 12 06 02 13.87 LAU 2021 12 06 03 13.68 LAU 2021 12 06 04 13.35 LAU 2021 12 06 05 13.02 LAU 2021 12 06 06 12.58 LAU 2021 12 06 07 12.44 LAU 2021 12 06 08 12.29 LAU 2021 12 06 09 12.49 LAU 2021 12 06 10 12.05 LAU 2021 12 06 11 11.28 LAU 2021 12 06 12 7.89 LAU 2021 12 06 13 5.70 LAU 2021 12 06 14 5.92 LAU 2021 12 06 15 4.63 LAU 2021 12 06 16 2.81 LAU 2021 12 06 17 2.76 LAU 2021 12 06 18 3.35 LAU 2021 12 06 19 6.75 LAU 2021 12 06 20 10.12 LAU 2021 12 06 21 11.81 LAU 2021 12 06 22 12.21 LAU 2021 12 06 23 12.76 LAU 2021 12 07 00 13.37 LAU 2021 12 07 01 14.10 LAU 2021 12 07 02 16.38 LAU 2021 12 07 03 17.04 LAU 2021 12 07 04 18.38 LAU 2021 12 07 05 18.93 LAU 2021 12 07 06 19.64 LAU 2021 12 07 07 16.54 LAU 2021 12 07 08 12.48 LAU 2021 12 07 09 11.20 LAU 2021 12 07 10 8.14 LAU 2021 12 07 11 5.57 LAU 2021 12 07 12 5.39 LAU 2021 12 07 13 5.44 LAU 2021 12 07 14 4.32 LAU 2021 12 07 15 4.02 LAU 2021 12 07 16 3.64 LAU 2021 12 07 17 3.95 LAU 2021 12 07 18 4.89 LAU 2021 12 07 19 6.87 LAU 2021 12 07 20 12.83 LAU 2021 12 07 21 15.44 LAU 2021 12 07 22 16.94 LAU 2021 12 07 23 18.97 LAU 2021 12 08 00 19.11 LAU 2021 12 08 01 18.63 LAU 2021 12 08 02 18.81 LAU 2021 12 08 03 18.68 LAU 2021 12 08 04 18.65 LAU 2021 12 08 05 19.34 LAU 2021 12 08 06 19.05 LAU 2021 12 08 07 18.53 LAU 2021 12 08 08 18.08 LAU 2021 12 08 09 17.99 LAU 2021 12 08 10 18.23 LAU 2021 12 08 11 17.39 LAU 2021 12 08 12 17.17 LAU 2021 12 08 13 17.89 LAU 2021 12 08 14 16.77 LAU 2021 12 08 15 15.32 LAU 2021 12 08 16 13.95 LAU 2021 12 08 17 11.21 LAU 2021 12 08 18 8.95 LAU 2021 12 08 19 10.05 LAU 2021 12 08 20 12.74 LAU 2021 12 08 21 14.18 LAU 2021 12 08 22 14.92 LAU 2021 12 08 23 14.89 LAU 2021 12 09 00 15.93 LAU 2021 12 09 01 16.42 LAU 2021 12 09 02 16.14 LAU 2021 12 09 03 14.98 LAU 2021 12 09 04 14.07 LAU 2021 12 09 05 14.20 LAU 2021 12 09 06 12.56 LAU 2021 12 09 07 10.37 LAU 2021 12 09 08 9.98 LAU 2021 12 09 09 9.98 LAU 2021 12 09 10 9.97 LAU 2021 12 09 11 9.74 LAU 2021 12 09 12 9.57 LAU 2021 12 09 13 9.68 LAU 2021 12 09 14 10.02 LAU 2021 12 09 15 9.93 LAU 2021 12 09 16 9.74 LAU 2021 12 09 17 10.27 LAU 2021 12 09 18 10.64 LAU 2021 12 09 19 10.81 LAU 2021 12 09 20 10.41 LAU 2021 12 09 21 10.05 LAU 2021 12 09 22 10.59 LAU 2021 12 09 23 12.82 LAU 2021 12 10 00 14.71 LAU 2021 12 10 01 16.14 LAU 2021 12 10 02 16.80 LAU 2021 12 10 03 17.02 LAU 2021 12 10 04 17.74 LAU 2021 12 10 05 16.71 LAU 2021 12 10 06 13.02 LAU 2021 12 10 07 13.34 LAU 2021 12 10 08 13.65 LAU 2021 12 10 09 12.69 LAU 2021 12 10 10 12.43 LAU 2021 12 10 11 12.20 LAU 2021 12 10 12 11.33 LAU 2021 12 10 13 10.76 LAU 2021 12 10 14 11.25 LAU 2021 12 10 15 12.08 LAU 2021 12 10 16 11.78 LAU 2021 12 10 17 11.29 LAU 2021 12 10 18 10.84 LAU 2021 12 10 19 10.27 LAU 2021 12 10 20 10.39 LAU 2021 12 10 21 10.81 LAU 2021 12 10 22 11.61 LAU 2021 12 10 23 11.59 LAU 2021 12 11 00 11.95 LAU 2021 12 11 01 11.77 LAU 2021 12 11 02 11.89 LAU 2021 12 11 03 11.25 LAU 2021 12 11 04 11.94 LAU 2021 12 11 05 11.62 LAU 2021 12 11 06 12.04 LAU 2021 12 11 07 12.42 LAU 2021 12 11 08 12.84 LAU 2021 12 11 09 12.49 LAU 2021 12 11 10 12.21 LAU 2021 12 11 11 11.84 LAU 2021 12 11 12 12.22 LAU 2021 12 11 13 11.97 LAU 2021 12 11 14 11.89 LAU 2021 12 11 15 12.36 LAU 2021 12 11 16 11.62 LAU 2021 12 11 17 10.52 LAU 2021 12 11 18 10.41 LAU 2021 12 11 19 11.82 LAU 2021 12 11 20 11.92 LAU 2021 12 11 21 12.68 LAU 2021 12 11 22 13.12 LAU 2021 12 11 23 13.57 LAU 2021 12 12 00 13.44 LAU 2021 12 12 01 13.34 LAU 2021 12 12 02 13.53 LAU 2021 12 12 03 13.97 LAU 2021 12 12 04 14.43 LAU 2021 12 12 05 14.20 LAU 2021 12 12 06 13.00 LAU 2021 12 12 07 11.60 LAU 2021 12 12 08 10.43 LAU 2021 12 12 09 9.46 LAU 2021 12 12 10 7.69 LAU 2021 12 12 11 7.86 LAU 2021 12 12 12 6.53 LAU 2021 12 12 13 5.01 LAU 2021 12 12 14 3.98 LAU 2021 12 12 15 3.33 LAU 2021 12 12 16 2.86 LAU 2021 12 12 17 3.25 LAU 2021 12 12 18 9999.99 LAU 2021 12 12 19 7.24 LAU 2021 12 12 20 9.55 LAU 2021 12 12 21 11.61 LAU 2021 12 12 22 12.93 LAU 2021 12 12 23 14.16 LAU 2021 12 13 00 15.04 LAU 2021 12 13 01 15.57 LAU 2021 12 13 02 14.76 LAU 2021 12 13 03 14.56 LAU 2021 12 13 04 14.43 LAU 2021 12 13 05 13.48 LAU 2021 12 13 06 11.74 LAU 2021 12 13 07 11.75 LAU 2021 12 13 08 11.29 LAU 2021 12 13 09 11.10 LAU 2021 12 13 10 7.83 LAU 2021 12 13 11 7.41 LAU 2021 12 13 12 7.21 LAU 2021 12 13 13 7.84 LAU 2021 12 13 14 7.98 LAU 2021 12 13 15 7.36 LAU 2021 12 13 16 8.42 LAU 2021 12 13 17 7.39 LAU 2021 12 13 18 9.45 LAU 2021 12 13 19 9.52 LAU 2021 12 13 20 11.28 LAU 2021 12 13 21 13.99 LAU 2021 12 13 22 15.20 LAU 2021 12 13 23 15.76 LAU 2021 12 14 00 15.91 LAU 2021 12 14 01 16.44 LAU 2021 12 14 02 17.22 LAU 2021 12 14 03 17.45 LAU 2021 12 14 04 16.97 LAU 2021 12 14 05 14.63 LAU 2021 12 14 06 13.45 LAU 2021 12 14 07 12.65 LAU 2021 12 14 08 12.72 LAU 2021 12 14 09 11.99 LAU 2021 12 14 10 10.50 LAU 2021 12 14 11 9.42 LAU 2021 12 14 12 8.93 LAU 2021 12 14 13 7.98 LAU 2021 12 14 14 5.70 LAU 2021 12 14 15 4.69 LAU 2021 12 14 16 4.50 LAU 2021 12 14 17 4.26 LAU 2021 12 14 18 4.84 LAU 2021 12 14 19 5.84 LAU 2021 12 14 20 8.70 LAU 2021 12 14 21 11.31 LAU 2021 12 14 22 12.15 LAU 2021 12 14 23 12.55 LAU 2021 12 15 00 12.06 LAU 2021 12 15 01 10.55 LAU 2021 12 15 02 10.42 LAU 2021 12 15 03 10.22 LAU 2021 12 15 04 9.78 LAU 2021 12 15 05 9.91 LAU 2021 12 15 06 9.82 LAU 2021 12 15 07 9.47 LAU 2021 12 15 08 9.98 LAU 2021 12 15 09 9.63 LAU 2021 12 15 10 8.15 LAU 2021 12 15 11 7.33 LAU 2021 12 15 12 7.51 LAU 2021 12 15 13 7.61 LAU 2021 12 15 14 7.25 LAU 2021 12 15 15 6.62 LAU 2021 12 15 16 6.49 LAU 2021 12 15 17 6.76 LAU 2021 12 15 18 8.32 LAU 2021 12 15 19 9.18 LAU 2021 12 15 20 9.23 LAU 2021 12 15 21 10.45 LAU 2021 12 15 22 11.83 LAU 2021 12 15 23 13.93 LAU 2021 12 16 00 13.43 LAU 2021 12 16 01 13.03 LAU 2021 12 16 02 12.62 LAU 2021 12 16 03 15.16 LAU 2021 12 16 04 15.78 LAU 2021 12 16 05 15.30 LAU 2021 12 16 06 15.07 LAU 2021 12 16 07 13.01 LAU 2021 12 16 08 12.43 LAU 2021 12 16 09 10.95 LAU 2021 12 16 10 10.61 LAU 2021 12 16 11 9.96 LAU 2021 12 16 12 8.72 LAU 2021 12 16 13 8.99 LAU 2021 12 16 14 8.25 LAU 2021 12 16 15 8.40 LAU 2021 12 16 16 9.29 LAU 2021 12 16 17 9.36 LAU 2021 12 16 18 9.47 LAU 2021 12 16 19 10.01 LAU 2021 12 16 20 11.31 LAU 2021 12 16 21 13.03 LAU 2021 12 16 22 13.61 LAU 2021 12 16 23 14.13 LAU 2021 12 17 00 13.69 LAU 2021 12 17 01 13.40 LAU 2021 12 17 02 13.43 LAU 2021 12 17 03 12.57 LAU 2021 12 17 04 13.40 LAU 2021 12 17 05 13.53 LAU 2021 12 17 06 13.34 LAU 2021 12 17 07 11.93 LAU 2021 12 17 08 11.54 LAU 2021 12 17 09 9.67 LAU 2021 12 17 10 8.23 LAU 2021 12 17 11 6.54 LAU 2021 12 17 12 5.85 LAU 2021 12 17 13 4.08 LAU 2021 12 17 14 4.26 LAU 2021 12 17 15 4.23 LAU 2021 12 17 16 4.51 LAU 2021 12 17 17 4.97 LAU 2021 12 17 18 6.02 LAU 2021 12 17 19 10.03 LAU 2021 12 17 20 13.19 LAU 2021 12 17 21 13.93 LAU 2021 12 17 22 14.79 LAU 2021 12 17 23 15.22 LAU 2021 12 18 00 16.21 LAU 2021 12 18 01 16.78 LAU 2021 12 18 02 16.79 LAU 2021 12 18 03 16.46 LAU 2021 12 18 04 16.35 LAU 2021 12 18 05 13.85 LAU 2021 12 18 06 12.83 LAU 2021 12 18 07 12.78 LAU 2021 12 18 08 12.33 LAU 2021 12 18 09 9.72 LAU 2021 12 18 10 9.17 LAU 2021 12 18 11 10.17 LAU 2021 12 18 12 10.13 LAU 2021 12 18 13 11.98 LAU 2021 12 18 14 13.83 LAU 2021 12 18 15 14.03 LAU 2021 12 18 16 13.22 LAU 2021 12 18 17 14.31 LAU 2021 12 18 18 14.56 LAU 2021 12 18 19 15.18 LAU 2021 12 18 20 15.60 LAU 2021 12 18 21 16.12 LAU 2021 12 18 22 15.63 LAU 2021 12 18 23 14.46 LAU 2021 12 19 00 13.17 LAU 2021 12 19 01 12.65 LAU 2021 12 19 02 12.32 LAU 2021 12 19 03 12.44 LAU 2021 12 19 04 12.50 LAU 2021 12 19 05 12.52 LAU 2021 12 19 06 12.84 LAU 2021 12 19 07 13.09 LAU 2021 12 19 08 13.41 LAU 2021 12 19 09 14.83 LAU 2021 12 19 10 16.15 LAU 2021 12 19 11 17.44 LAU 2021 12 19 12 17.88 LAU 2021 12 19 13 18.23 LAU 2021 12 19 14 18.66 LAU 2021 12 19 15 18.66 LAU 2021 12 19 16 18.91 LAU 2021 12 19 17 18.86 LAU 2021 12 19 18 19.20 LAU 2021 12 19 19 19.30 LAU 2021 12 19 20 18.43 LAU 2021 12 19 21 9999.99 LAU 2021 12 19 22 9999.99 LAU 2021 12 19 23 9999.99 LAU 2021 12 31 03 12.74 LAU 2021 12 31 04 13.48 LAU 2021 12 31 05 13.86 LAU 2021 12 31 06 13.95 LAU 2021 12 31 07 13.48 LAU 2021 12 31 08 14.99 LAU 2021 12 31 09 17.83 LAU 2021 12 31 10 19.35 LAU 2021 12 31 11 18.89 LAU 2021 12 31 12 16.71 LAU 2021 12 31 13 15.46 LAU 2021 12 31 14 14.56 LAU 2021 12 31 15 12.47 LAU 2021 12 31 16 12.36 LAU 2021 12 31 17 11.86 LAU 2021 12 31 18 11.73 LAU 2021 12 31 19 11.43 LAU 2021 12 31 20 12.54 LAU 2021 12 31 21 14.65 LAU 2021 12 31 22 17.33 LAU 2021 12 31 23 17.89