These data are made available to the scientific community and public with the understanding that authors of publications and presentations will contact the PI to obtain up-to-date information on the latest version of the data during the early stages of their analysis. Manuscripts that employ these data should be reviewed by the PI before submission to ensure the quality and limitations of the data are represented. Data Disclaimer: Data has undergone extensive quality checks and is available from NOAA-GMD and WDCGG. However, there still exists the potential for these data to be modified at the discretion of NOAA/ESRL Global Monitoring Division. If you have questions regarding the data in this file, please contact: Audra McClure-Begley: Audra.mcclure@noaa.gov (303-497-6823) Please use the following citation for data use: McClure-Begley, A., Petropavlovskikh, I., Oltmans, S., (2014) NOAA Global Monitoring Surface Ozone Network. Station name, Time start-Time end. National Oceanic and Atmospheric Administration, Earth Systems Research Laboratory Global Monitoring Division. Boulder, CO. DATE ACCESSED http://dx.doi.org/10.7289/V57P8WBF STN YEAR MON DAY HR O3(PPB) TUN 2018 05 01 00 9999.99 TUN 2018 05 10 17 69.12 TUN 2018 05 10 18 66.72 TUN 2018 05 10 19 65.49 TUN 2018 05 10 20 65.97 TUN 2018 05 10 21 65.77 TUN 2018 05 10 22 65.26 TUN 2018 05 10 23 64.31 TUN 2018 05 11 00 62.27 TUN 2018 05 11 01 61.32 TUN 2018 05 11 02 63.84 TUN 2018 05 11 03 63.56 TUN 2018 05 11 04 53.85 TUN 2018 05 11 05 52.31 TUN 2018 05 11 06 55.70 TUN 2018 05 11 07 58.70 TUN 2018 05 11 08 56.90 TUN 2018 05 11 09 55.15 TUN 2018 05 11 10 57.07 TUN 2018 05 11 11 59.06 TUN 2018 05 11 12 60.29 TUN 2018 05 11 13 61.98 TUN 2018 05 11 14 65.06 TUN 2018 05 11 15 68.36 TUN 2018 05 11 16 69.20 TUN 2018 05 11 17 67.12 TUN 2018 05 11 18 66.05 TUN 2018 05 11 19 61.36 TUN 2018 05 11 20 65.07 TUN 2018 05 11 21 70.43 TUN 2018 05 11 22 72.44 TUN 2018 05 11 23 69.85 TUN 2018 05 12 00 67.13 TUN 2018 05 12 01 59.34 TUN 2018 05 12 02 55.15 TUN 2018 05 12 03 53.62 TUN 2018 05 12 04 46.88 TUN 2018 05 12 05 46.91 TUN 2018 05 12 06 49.18 TUN 2018 05 12 07 44.52 TUN 2018 05 12 08 38.57 TUN 2018 05 12 09 35.45 TUN 2018 05 12 10 33.95 TUN 2018 05 12 11 32.82 TUN 2018 05 12 12 38.62 TUN 2018 05 12 13 40.22 TUN 2018 05 12 14 40.80 TUN 2018 05 12 15 42.43 TUN 2018 05 12 16 42.37 TUN 2018 05 12 17 40.53 TUN 2018 05 12 18 46.26 TUN 2018 05 12 19 44.52 TUN 2018 05 12 20 44.28 TUN 2018 05 12 21 47.08 TUN 2018 05 12 22 45.74 TUN 2018 05 12 23 46.02 TUN 2018 05 13 00 45.61 TUN 2018 05 13 01 44.68 TUN 2018 05 13 02 36.61 TUN 2018 05 13 03 35.16 TUN 2018 05 13 04 33.31 TUN 2018 05 13 05 34.48 TUN 2018 05 13 06 41.23 TUN 2018 05 13 07 42.31 TUN 2018 05 13 08 51.47 TUN 2018 05 13 09 58.54 TUN 2018 05 13 10 59.45 TUN 2018 05 13 11 58.93 TUN 2018 05 13 12 59.63 TUN 2018 05 13 13 57.69 TUN 2018 05 13 14 55.87 TUN 2018 05 13 15 53.22 TUN 2018 05 13 16 50.69 TUN 2018 05 13 17 49.18 TUN 2018 05 13 18 53.26 TUN 2018 05 13 19 51.48 TUN 2018 05 13 20 45.07 TUN 2018 05 13 21 46.92 TUN 2018 05 13 22 49.38 TUN 2018 05 13 23 49.84 TUN 2018 05 14 00 62.71 TUN 2018 05 14 01 61.00 TUN 2018 05 14 02 63.18 TUN 2018 05 14 03 63.47 TUN 2018 05 14 04 59.69 TUN 2018 05 14 05 53.59 TUN 2018 05 14 06 49.12 TUN 2018 05 14 07 47.21 TUN 2018 05 14 08 49.34 TUN 2018 05 14 09 54.00 TUN 2018 05 14 10 44.56 TUN 2018 05 14 11 47.39 TUN 2018 05 14 12 46.56 TUN 2018 05 14 13 47.70 TUN 2018 05 14 14 48.79 TUN 2018 05 14 15 51.63 TUN 2018 05 14 16 52.56 TUN 2018 05 14 17 50.15 TUN 2018 05 14 18 58.00 TUN 2018 05 14 19 57.53 TUN 2018 05 14 20 59.81 TUN 2018 05 14 21 56.14 TUN 2018 05 14 22 56.12 TUN 2018 05 14 23 57.29 TUN 2018 05 15 00 57.38 TUN 2018 05 15 01 56.44 TUN 2018 05 15 02 56.56 TUN 2018 05 15 03 58.88 TUN 2018 05 15 04 60.13 TUN 2018 05 15 05 62.04 TUN 2018 05 15 06 65.04 TUN 2018 05 15 07 63.98 TUN 2018 05 15 08 66.12 TUN 2018 05 15 09 66.01 TUN 2018 05 15 10 66.43 TUN 2018 05 15 11 62.90 TUN 2018 05 15 12 60.86 TUN 2018 05 15 13 58.85 TUN 2018 05 15 14 58.40 TUN 2018 05 15 15 56.50 TUN 2018 05 15 16 58.20 TUN 2018 05 15 17 56.38 TUN 2018 05 15 18 59.48 TUN 2018 05 15 19 59.83 TUN 2018 05 15 20 62.79 TUN 2018 05 15 21 63.17 TUN 2018 05 15 22 66.74 TUN 2018 05 15 23 67.79 TUN 2018 05 16 00 66.95 TUN 2018 05 16 01 70.90 TUN 2018 05 16 02 74.87 TUN 2018 05 16 03 75.99 TUN 2018 05 16 04 74.31 TUN 2018 05 16 05 73.42 TUN 2018 05 16 06 72.69 TUN 2018 05 16 07 70.23 TUN 2018 05 16 08 62.43 TUN 2018 05 16 09 60.65 TUN 2018 05 16 10 60.25 TUN 2018 05 16 11 61.05 TUN 2018 05 16 12 62.35 TUN 2018 05 16 13 61.24 TUN 2018 05 16 14 62.22 TUN 2018 05 16 15 63.47 TUN 2018 05 16 16 63.34 TUN 2018 05 16 17 64.54 TUN 2018 05 16 18 65.50 TUN 2018 05 16 19 67.98 TUN 2018 05 16 20 70.84 TUN 2018 05 16 21 71.51 TUN 2018 05 16 22 75.48 TUN 2018 05 16 23 84.58 TUN 2018 05 17 00 82.69 TUN 2018 05 17 01 78.09 TUN 2018 05 17 02 76.10 TUN 2018 05 17 03 71.93 TUN 2018 05 17 04 66.54 TUN 2018 05 17 05 68.42 TUN 2018 05 17 06 68.47 TUN 2018 05 17 07 68.21 TUN 2018 05 17 08 67.35 TUN 2018 05 17 09 67.99 TUN 2018 05 17 10 71.70 TUN 2018 05 17 11 69.92 TUN 2018 05 17 12 70.07 TUN 2018 05 17 13 70.47 TUN 2018 05 17 14 70.05 TUN 2018 05 17 15 69.77 TUN 2018 05 17 16 71.67 TUN 2018 05 17 17 73.61 TUN 2018 05 17 18 72.50 TUN 2018 05 17 19 71.68 TUN 2018 05 17 20 70.80 TUN 2018 05 17 21 69.73 TUN 2018 05 17 22 72.95 TUN 2018 05 17 23 73.88 TUN 2018 05 18 00 71.94 TUN 2018 05 18 01 70.19 TUN 2018 05 18 02 69.12 TUN 2018 05 18 03 68.13 TUN 2018 05 18 04 67.89 TUN 2018 05 18 05 68.57 TUN 2018 05 18 06 68.95 TUN 2018 05 18 07 67.65 TUN 2018 05 18 08 63.26 TUN 2018 05 18 09 60.04 TUN 2018 05 18 10 60.50 TUN 2018 05 18 11 62.35 TUN 2018 05 18 12 65.02 TUN 2018 05 18 13 64.25 TUN 2018 05 18 14 66.63 TUN 2018 05 18 15 64.92 TUN 2018 05 18 16 63.32 TUN 2018 05 18 17 64.05 TUN 2018 05 18 18 63.03 TUN 2018 05 18 19 65.41 TUN 2018 05 18 20 64.60 TUN 2018 05 18 21 69.61 TUN 2018 05 18 22 67.60 TUN 2018 05 18 23 66.00 TUN 2018 05 19 00 65.62 TUN 2018 05 19 01 67.65 TUN 2018 05 19 02 69.11 TUN 2018 05 19 03 66.77 TUN 2018 05 19 04 66.08 TUN 2018 05 19 05 61.53 TUN 2018 05 19 06 62.01 TUN 2018 05 19 07 55.27 TUN 2018 05 19 08 57.76 TUN 2018 05 19 09 61.69 TUN 2018 05 19 10 61.43 TUN 2018 05 19 11 62.14 TUN 2018 05 19 12 51.33 TUN 2018 05 19 13 46.61 TUN 2018 05 19 14 51.79 TUN 2018 05 19 15 51.41 TUN 2018 05 19 16 49.75 TUN 2018 05 19 17 50.97 TUN 2018 05 19 18 50.43 TUN 2018 05 19 19 49.75 TUN 2018 05 19 20 49.23 TUN 2018 05 19 21 43.62 TUN 2018 05 19 22 41.27 TUN 2018 05 19 23 41.96 TUN 2018 05 20 00 37.77 TUN 2018 05 20 01 41.56 TUN 2018 05 20 02 43.01 TUN 2018 05 20 03 46.40 TUN 2018 05 20 04 49.88 TUN 2018 05 20 05 46.97 TUN 2018 05 20 06 54.53 TUN 2018 05 20 07 59.43 TUN 2018 05 20 08 68.15 TUN 2018 05 20 09 67.67 TUN 2018 05 20 10 67.71 TUN 2018 05 20 11 64.98 TUN 2018 05 20 12 64.08 TUN 2018 05 20 13 63.52 TUN 2018 05 20 14 60.03 TUN 2018 05 20 15 62.59 TUN 2018 05 20 16 61.70 TUN 2018 05 20 17 60.26 TUN 2018 05 20 18 61.93 TUN 2018 05 20 19 56.90 TUN 2018 05 20 20 55.44 TUN 2018 05 20 21 61.54 TUN 2018 05 20 22 57.34 TUN 2018 05 20 23 56.54 TUN 2018 05 21 00 58.20 TUN 2018 05 21 01 56.86 TUN 2018 05 21 02 66.46 TUN 2018 05 21 03 66.13 TUN 2018 05 21 04 66.77 TUN 2018 05 21 05 69.03 TUN 2018 05 21 06 71.76 TUN 2018 05 21 07 72.07 TUN 2018 05 21 08 71.50 TUN 2018 05 21 09 72.22 TUN 2018 05 21 10 72.17 TUN 2018 05 21 11 72.02 TUN 2018 05 21 12 71.44 TUN 2018 05 21 13 71.83 TUN 2018 05 21 14 71.50 TUN 2018 05 21 15 70.33 TUN 2018 05 21 16 69.69 TUN 2018 05 21 17 67.78 TUN 2018 05 21 18 68.55 TUN 2018 05 21 19 68.40 TUN 2018 05 21 20 70.02 TUN 2018 05 21 21 68.95 TUN 2018 05 21 22 69.11 TUN 2018 05 21 23 68.79 TUN 2018 05 22 00 71.46 TUN 2018 05 22 01 73.06 TUN 2018 05 22 02 71.56 TUN 2018 05 22 03 71.91 TUN 2018 05 22 04 69.15 TUN 2018 05 22 05 68.85 TUN 2018 05 22 06 70.75 TUN 2018 05 22 07 69.04 TUN 2018 05 22 08 70.85 TUN 2018 05 22 09 69.55 TUN 2018 05 22 10 68.13 TUN 2018 05 22 11 67.14 TUN 2018 05 22 12 66.19 TUN 2018 05 22 13 66.07 TUN 2018 05 22 14 67.48 TUN 2018 05 22 15 69.71 TUN 2018 05 22 16 69.99 TUN 2018 05 22 17 69.54 TUN 2018 05 22 18 67.05 TUN 2018 05 22 19 66.95 TUN 2018 05 22 20 69.28 TUN 2018 05 22 21 71.42 TUN 2018 05 22 22 73.05 TUN 2018 05 22 23 71.26 TUN 2018 05 23 00 69.03 TUN 2018 05 23 01 70.40 TUN 2018 05 23 02 66.25 TUN 2018 05 23 03 66.62 TUN 2018 05 23 04 70.34 TUN 2018 05 23 05 73.19 TUN 2018 05 23 06 70.97 TUN 2018 05 23 07 68.43 TUN 2018 05 23 08 66.79 TUN 2018 05 23 09 67.14 TUN 2018 05 23 10 66.57 TUN 2018 05 23 11 66.43 TUN 2018 05 23 12 67.18 TUN 2018 05 23 13 65.90 TUN 2018 05 23 14 63.30 TUN 2018 05 23 15 62.61 TUN 2018 05 23 16 66.86 TUN 2018 05 23 17 66.10 TUN 2018 05 23 18 65.04 TUN 2018 05 23 19 66.27 TUN 2018 05 23 20 68.15 TUN 2018 05 23 21 69.97 TUN 2018 05 23 22 71.39 TUN 2018 05 23 23 70.04 TUN 2018 05 24 00 68.82 TUN 2018 05 24 01 68.43 TUN 2018 05 24 02 67.98 TUN 2018 05 24 03 67.77 TUN 2018 05 24 04 67.51 TUN 2018 05 24 05 65.54 TUN 2018 05 24 06 64.91 TUN 2018 05 24 07 64.67 TUN 2018 05 24 08 65.16 TUN 2018 05 24 09 64.31 TUN 2018 05 24 10 63.81 TUN 2018 05 24 11 63.25 TUN 2018 05 24 12 62.16 TUN 2018 05 24 13 64.86 TUN 2018 05 24 14 65.56 TUN 2018 05 24 15 65.16 TUN 2018 05 24 16 64.89 TUN 2018 05 24 17 65.42 TUN 2018 05 24 18 66.63 TUN 2018 05 24 19 66.84 TUN 2018 05 24 20 67.77 TUN 2018 05 24 21 68.16 TUN 2018 05 24 22 68.50 TUN 2018 05 24 23 69.00 TUN 2018 05 25 00 68.48 TUN 2018 05 25 01 66.97 TUN 2018 05 25 02 67.20 TUN 2018 05 25 03 70.62 TUN 2018 05 25 04 70.66 TUN 2018 05 25 05 66.58 TUN 2018 05 25 06 66.48 TUN 2018 05 25 07 66.51 TUN 2018 05 25 08 66.06 TUN 2018 05 25 09 65.56 TUN 2018 05 25 10 65.23 TUN 2018 05 25 11 68.06 TUN 2018 05 25 12 68.36 TUN 2018 05 25 13 67.19 TUN 2018 05 25 14 67.13 TUN 2018 05 25 15 66.44 TUN 2018 05 25 16 65.72 TUN 2018 05 25 17 66.63 TUN 2018 05 25 18 66.42 TUN 2018 05 25 19 66.63 TUN 2018 05 25 20 68.98 TUN 2018 05 25 21 74.18 TUN 2018 05 25 22 84.23 TUN 2018 05 25 23 86.94 TUN 2018 05 26 00 88.82 TUN 2018 05 26 01 89.38 TUN 2018 05 26 02 90.70 TUN 2018 05 26 03 87.70 TUN 2018 05 26 04 83.13 TUN 2018 05 26 05 76.89 TUN 2018 05 26 06 75.78 TUN 2018 05 26 07 76.22 TUN 2018 05 26 08 73.54 TUN 2018 05 26 09 74.25 TUN 2018 05 26 10 72.62 TUN 2018 05 26 11 71.48 TUN 2018 05 26 12 70.46 TUN 2018 05 26 13 67.96 TUN 2018 05 26 14 68.95 TUN 2018 05 26 15 69.29 TUN 2018 05 26 16 66.23 TUN 2018 05 26 17 60.68 TUN 2018 05 26 18 68.61 TUN 2018 05 26 19 71.92 TUN 2018 05 26 20 74.71 TUN 2018 05 26 21 79.17 TUN 2018 05 26 22 81.93 TUN 2018 05 26 23 63.23 TUN 2018 05 27 00 57.51 TUN 2018 05 27 01 56.44 TUN 2018 05 27 02 57.02 TUN 2018 05 27 03 56.20 TUN 2018 05 27 04 54.32 TUN 2018 05 27 05 54.44 TUN 2018 05 27 06 54.55 TUN 2018 05 27 07 54.91 TUN 2018 05 27 08 54.24 TUN 2018 05 27 09 53.91 TUN 2018 05 27 10 54.41 TUN 2018 05 27 11 53.69 TUN 2018 05 27 12 52.92 TUN 2018 05 27 13 51.76 TUN 2018 05 27 14 52.48 TUN 2018 05 27 15 52.61 TUN 2018 05 27 16 51.79 TUN 2018 05 27 17 53.17 TUN 2018 05 27 18 55.44 TUN 2018 05 27 19 56.71 TUN 2018 05 27 20 60.16 TUN 2018 05 27 21 62.61 TUN 2018 05 27 22 63.11 TUN 2018 05 27 23 64.86 TUN 2018 05 28 00 65.77 TUN 2018 05 28 01 63.12 TUN 2018 05 28 02 59.57 TUN 2018 05 28 03 60.24 TUN 2018 05 28 04 62.87 TUN 2018 05 28 05 62.47 TUN 2018 05 28 06 57.90 TUN 2018 05 28 07 59.66 TUN 2018 05 28 08 64.19 TUN 2018 05 28 09 64.11 TUN 2018 05 28 10 63.65 TUN 2018 05 28 11 65.33 TUN 2018 05 28 12 64.30 TUN 2018 05 28 13 62.48 TUN 2018 05 28 14 61.79 TUN 2018 05 28 15 62.68 TUN 2018 05 28 16 61.78 TUN 2018 05 28 17 64.41 TUN 2018 05 28 18 65.22 TUN 2018 05 28 19 63.15 TUN 2018 05 28 20 65.80 TUN 2018 05 28 21 68.41 TUN 2018 05 28 22 73.13 TUN 2018 05 28 23 71.82 TUN 2018 05 29 00 74.38 TUN 2018 05 29 01 73.61 TUN 2018 05 29 02 71.38 TUN 2018 05 29 03 69.47 TUN 2018 05 29 04 66.89 TUN 2018 05 29 05 65.64 TUN 2018 05 29 06 63.53 TUN 2018 05 29 07 62.24 TUN 2018 05 29 08 66.95 TUN 2018 05 29 09 64.05 TUN 2018 05 29 10 63.12 TUN 2018 05 29 11 64.45 TUN 2018 05 29 12 64.63 TUN 2018 05 29 13 64.62 TUN 2018 05 29 14 65.69 TUN 2018 05 29 15 63.43 TUN 2018 05 29 16 63.83 TUN 2018 05 29 17 66.48 TUN 2018 05 29 18 66.59 TUN 2018 05 29 19 65.17 TUN 2018 05 29 20 65.21 TUN 2018 05 29 21 66.02 TUN 2018 05 29 22 67.39 TUN 2018 05 29 23 68.62 TUN 2018 05 30 00 68.28 TUN 2018 05 30 01 67.06 TUN 2018 05 30 02 66.07 TUN 2018 05 30 03 66.24 TUN 2018 05 30 04 66.00 TUN 2018 05 30 05 65.14 TUN 2018 05 30 06 64.13 TUN 2018 05 30 07 65.18 TUN 2018 05 30 08 64.64 TUN 2018 05 30 09 65.41 TUN 2018 05 30 10 65.73 TUN 2018 05 30 11 63.88 TUN 2018 05 30 12 63.57 TUN 2018 05 30 13 65.05 TUN 2018 05 30 14 65.10 TUN 2018 05 30 15 64.56 TUN 2018 05 30 16 64.81 TUN 2018 05 30 17 64.96 TUN 2018 05 30 18 63.86 TUN 2018 05 30 19 65.17 TUN 2018 05 30 20 65.33 TUN 2018 05 30 21 66.67 TUN 2018 05 30 22 64.17 TUN 2018 05 30 23 67.74 TUN 2018 05 31 00 68.18 TUN 2018 05 31 01 67.68 TUN 2018 05 31 02 70.30 TUN 2018 05 31 03 69.07 TUN 2018 05 31 04 70.17 TUN 2018 05 31 05 67.59 TUN 2018 05 31 06 67.13 TUN 2018 05 31 07 67.33 TUN 2018 05 31 08 66.95 TUN 2018 05 31 09 66.27 TUN 2018 05 31 10 65.88 TUN 2018 05 31 11 65.89 TUN 2018 05 31 12 65.03 TUN 2018 05 31 13 64.43 TUN 2018 05 31 14 65.08 TUN 2018 05 31 15 64.66 TUN 2018 05 31 16 64.51 TUN 2018 05 31 17 63.93 TUN 2018 05 31 18 65.34 TUN 2018 05 31 19 68.94 TUN 2018 05 31 20 69.91 TUN 2018 05 31 21 74.84 TUN 2018 05 31 22 78.08 TUN 2018 05 31 23 76.58