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) 31 2011 09 01 00 21.94 31 2011 09 01 01 19.98 31 2011 09 01 02 21.64 31 2011 09 01 03 23.51 31 2011 09 01 04 28.93 31 2011 09 01 05 25.61 31 2011 09 01 06 24.44 31 2011 09 01 07 27.03 31 2011 09 01 08 28.38 31 2011 09 01 09 28.50 31 2011 09 01 10 31.43 31 2011 09 01 11 38.62 31 2011 09 01 12 42.43 31 2011 09 01 13 42.05 31 2011 09 01 14 43.30 31 2011 09 01 15 43.45 31 2011 09 01 16 42.45 31 2011 09 01 17 40.24 31 2011 09 01 18 37.84 31 2011 09 01 19 41.27 31 2011 09 01 22 42.13 31 2011 09 01 23 42.77 31 2011 09 02 00 40.93 31 2011 09 02 01 39.45 31 2011 09 02 02 38.23 31 2011 09 02 03 34.29 31 2011 09 02 04 39.83 31 2011 09 02 05 41.60 31 2011 09 02 06 39.62 31 2011 09 02 07 40.86 31 2011 09 02 08 41.90 31 2011 09 02 09 41.81 31 2011 09 02 10 42.09 31 2011 09 02 11 42.17 31 2011 09 02 12 41.78 31 2011 09 02 13 40.99 31 2011 09 02 14 40.25 31 2011 09 02 15 39.93 31 2011 09 02 16 39.78 31 2011 09 02 17 39.76 31 2011 09 02 18 40.60 31 2011 09 02 19 40.52 31 2011 09 02 20 39.97 31 2011 09 02 21 37.07 31 2011 09 02 22 34.28 31 2011 09 02 23 33.91 31 2011 09 03 00 34.33 31 2011 09 03 01 34.10 31 2011 09 03 02 34.47 31 2011 09 03 03 34.84 31 2011 09 03 04 37.15 31 2011 09 03 05 40.38 31 2011 09 03 06 48.23 31 2011 09 03 07 48.70 31 2011 09 03 08 52.04 31 2011 09 03 09 52.41 31 2011 09 03 10 52.80 31 2011 09 03 11 55.41 31 2011 09 03 12 54.28 31 2011 09 03 13 56.83 31 2011 09 03 14 63.28 31 2011 09 03 15 67.33 31 2011 09 03 16 62.81 31 2011 09 03 17 57.20 31 2011 09 03 18 49.30 31 2011 09 03 19 41.86 31 2011 09 03 20 32.55 31 2011 09 03 21 23.06 31 2011 09 03 22 19.83 31 2011 09 03 23 24.62 31 2011 09 04 00 21.55 31 2011 09 04 01 20.45 31 2011 09 04 02 23.89 31 2011 09 04 03 24.25 31 2011 09 04 04 32.27 31 2011 09 04 05 48.10 31 2011 09 04 06 43.99 31 2011 09 04 07 41.74 31 2011 09 04 08 43.80 31 2011 09 04 09 42.80 31 2011 09 04 10 42.19 31 2011 09 04 11 41.48 31 2011 09 04 12 41.99 31 2011 09 04 13 43.67 31 2011 09 04 14 45.16 31 2011 09 04 15 46.91 31 2011 09 04 16 48.12 31 2011 09 04 17 43.50 31 2011 09 04 18 58.58 31 2011 09 04 19 54.76 31 2011 09 04 20 46.42 31 2011 09 04 21 40.08 31 2011 09 04 22 37.78 31 2011 09 04 23 37.84 31 2011 09 05 00 37.50 31 2011 09 05 01 38.34 31 2011 09 05 02 38.58 31 2011 09 05 03 39.00 31 2011 09 05 04 48.84 31 2011 09 05 05 66.70 31 2011 09 05 06 57.88 31 2011 09 05 07 62.78 31 2011 09 05 08 62.49 31 2011 09 05 09 62.99 31 2011 09 05 10 61.07 31 2011 09 05 11 59.69 31 2011 09 05 12 57.05 31 2011 09 05 13 56.95 31 2011 09 05 14 54.60 31 2011 09 05 15 54.49 31 2011 09 05 16 55.03 31 2011 09 05 17 61.94 31 2011 09 05 18 67.34 31 2011 09 05 19 61.54 31 2011 09 05 20 53.26 31 2011 09 05 21 45.87 31 2011 09 05 22 38.26 31 2011 09 05 23 37.05 31 2011 09 06 00 39.11 31 2011 09 06 01 40.71 31 2011 09 06 02 41.58 31 2011 09 06 03 40.38 31 2011 09 06 04 37.42 31 2011 09 06 05 52.76 31 2011 09 06 06 57.80 31 2011 09 06 07 61.23 31 2011 09 06 08 60.25 31 2011 09 06 09 56.32 31 2011 09 06 10 51.46 31 2011 09 06 11 50.69 31 2011 09 06 12 50.30 31 2011 09 06 13 52.69 31 2011 09 06 14 51.50 31 2011 09 06 15 47.38 31 2011 09 06 16 46.94 31 2011 09 06 17 47.17 31 2011 09 06 18 59.18 31 2011 09 06 19 59.25 31 2011 09 06 20 41.67 31 2011 09 06 21 38.97 31 2011 09 06 22 39.91 31 2011 09 06 23 40.02 31 2011 09 07 00 39.73 31 2011 09 07 01 43.52 31 2011 09 07 02 44.97 31 2011 09 07 03 47.01 31 2011 09 07 04 51.26 31 2011 09 07 05 50.47 31 2011 09 07 06 47.06 31 2011 09 07 07 44.39 31 2011 09 07 08 47.13 31 2011 09 07 09 49.09 31 2011 09 07 10 48.30 31 2011 09 07 11 47.69 31 2011 09 07 12 48.80 31 2011 09 07 13 51.38 31 2011 09 07 14 49.34 31 2011 09 07 15 46.97 31 2011 09 07 16 52.49 31 2011 09 07 17 53.13 31 2011 09 07 18 49.79 31 2011 09 07 19 48.47 31 2011 09 07 20 40.36 31 2011 09 07 21 36.38 31 2011 09 07 22 34.64 31 2011 09 07 23 33.48 31 2011 09 08 00 33.40 31 2011 09 08 01 32.98 31 2011 09 08 02 34.91 31 2011 09 08 03 35.25 31 2011 09 08 04 35.45 31 2011 09 08 05 40.66 31 2011 09 08 06 49.28 31 2011 09 08 07 50.94 31 2011 09 08 08 59.82 31 2011 09 08 09 65.91 31 2011 09 08 10 72.01 31 2011 09 08 11 74.79 31 2011 09 08 12 75.67 31 2011 09 08 13 76.53 31 2011 09 08 14 78.85 31 2011 09 08 15 79.58 31 2011 09 08 16 77.27 31 2011 09 08 17 67.48 31 2011 09 08 18 62.55 31 2011 09 08 19 48.38 31 2011 09 08 20 38.77 31 2011 09 08 22 32.32 31 2011 09 08 23 29.63 31 2011 09 09 00 28.46 31 2011 09 09 01 28.39 31 2011 09 09 02 28.18 31 2011 09 09 03 29.42 31 2011 09 09 04 30.43 31 2011 09 09 05 47.40 31 2011 09 09 06 60.94 31 2011 09 09 07 69.46 31 2011 09 09 08 74.86 31 2011 09 09 09 74.23 31 2011 09 09 10 74.59 31 2011 09 09 11 63.14 31 2011 09 09 12 59.20 31 2011 09 09 13 56.04 31 2011 09 09 14 43.17 31 2011 09 09 15 40.86 31 2011 09 09 16 40.57 31 2011 09 09 17 45.89 31 2011 09 09 18 44.33 31 2011 09 09 19 39.85 31 2011 09 09 20 36.26 31 2011 09 09 21 33.53 31 2011 09 09 22 28.91 31 2011 09 09 23 29.42 31 2011 09 10 00 30.05 31 2011 09 10 01 30.28 31 2011 09 10 02 31.11 31 2011 09 10 03 27.77 31 2011 09 10 04 34.03 31 2011 09 10 05 40.33 31 2011 09 10 06 41.92 31 2011 09 10 07 48.19 31 2011 09 10 08 55.15 31 2011 09 10 09 55.00 31 2011 09 10 10 51.22 31 2011 09 10 11 47.79 31 2011 09 10 12 48.13 31 2011 09 10 13 50.50 31 2011 09 10 14 50.32 31 2011 09 10 15 53.39 31 2011 09 10 16 53.08 31 2011 09 10 17 56.05 31 2011 09 10 18 58.09 31 2011 09 10 19 50.96 31 2011 09 10 20 41.61 31 2011 09 10 21 36.89 31 2011 09 10 22 35.21 31 2011 09 10 23 34.34 31 2011 09 11 00 34.81 31 2011 09 11 01 41.93 31 2011 09 11 02 50.98 31 2011 09 11 03 59.75 31 2011 09 11 04 54.07 31 2011 09 11 05 50.95 31 2011 09 11 06 48.53 31 2011 09 11 07 50.47 31 2011 09 11 08 54.95 31 2011 09 11 09 57.30 31 2011 09 11 10 58.81 31 2011 09 11 11 60.16 31 2011 09 11 12 57.85 31 2011 09 11 13 59.77 31 2011 09 11 14 71.10 31 2011 09 11 15 78.67 31 2011 09 11 16 74.67 31 2011 09 11 17 68.77 31 2011 09 11 18 64.54 31 2011 09 11 19 55.77 31 2011 09 11 20 43.53 31 2011 09 11 21 37.42 31 2011 09 11 22 32.42 31 2011 09 11 23 31.67 31 2011 09 12 00 33.14 31 2011 09 12 01 33.63 31 2011 09 12 02 36.79 31 2011 09 12 03 41.52 31 2011 09 12 04 45.24 31 2011 09 12 05 45.55 31 2011 09 12 06 54.30 31 2011 09 12 07 59.38 31 2011 09 12 08 55.34 31 2011 09 12 09 50.35 31 2011 09 12 10 51.43 31 2011 09 12 11 54.99 31 2011 09 12 12 63.82 31 2011 09 12 13 68.10 31 2011 09 12 14 66.39 31 2011 09 12 15 63.77 31 2011 09 12 16 63.76 31 2011 09 12 17 59.31 31 2011 09 12 18 57.42 31 2011 09 12 19 52.38 31 2011 09 12 20 40.96 31 2011 09 12 23 28.43 31 2011 09 18 13 28.93 31 2011 09 18 14 30.83 31 2011 09 18 15 31.23 31 2011 09 18 16 31.40 31 2011 09 18 17 32.88 31 2011 09 18 18 30.58 31 2011 09 18 19 29.32 31 2011 09 18 20 30.27 31 2011 09 18 21 29.72 31 2011 09 18 22 29.17 31 2011 09 18 23 28.54 31 2011 09 19 00 27.56 31 2011 09 19 01 27.79 31 2011 09 19 02 29.58 31 2011 09 19 03 31.44 31 2011 09 19 04 35.19 31 2011 09 19 05 36.29 31 2011 09 19 06 36.46 31 2011 09 19 07 35.15 31 2011 09 19 08 35.56 31 2011 09 19 09 33.15 31 2011 09 19 10 31.46 31 2011 09 19 11 28.54 31 2011 09 19 12 28.53 31 2011 09 19 13 29.09 31 2011 09 19 14 28.48 31 2011 09 19 15 27.76 31 2011 09 19 16 26.50 31 2011 09 19 17 26.91 31 2011 09 19 18 27.68 31 2011 09 19 19 29.12 31 2011 09 19 21 27.93 31 2011 09 19 22 27.45 31 2011 09 19 23 26.56 31 2011 09 20 00 26.45 31 2011 09 20 01 27.64 31 2011 09 20 02 28.51 31 2011 09 20 03 29.12 31 2011 09 20 04 30.32 31 2011 09 20 05 31.51 31 2011 09 20 06 32.00 31 2011 09 20 07 30.78 31 2011 09 20 08 30.23 31 2011 09 20 09 29.89 31 2011 09 20 10 29.58 31 2011 09 20 11 29.20 31 2011 09 20 12 30.32 31 2011 09 20 13 31.84 31 2011 09 20 14 31.59 31 2011 09 20 15 28.36 31 2011 09 20 16 30.21 31 2011 09 20 17 31.78 31 2011 09 20 18 32.94 31 2011 09 20 19 33.30 31 2011 09 20 20 34.50 31 2011 09 20 21 33.56 31 2011 09 20 22 30.69 31 2011 09 20 23 30.05 31 2011 09 21 00 33.96 31 2011 09 21 01 36.53 31 2011 09 21 02 37.29 31 2011 09 21 03 38.24 31 2011 09 21 04 37.81 31 2011 09 21 05 39.02 31 2011 09 21 06 41.21 31 2011 09 21 07 40.16 31 2011 09 21 08 39.02 31 2011 09 21 09 38.57 31 2011 09 21 10 37.65 31 2011 09 21 11 37.78 31 2011 09 21 12 37.73 31 2011 09 21 13 38.36 31 2011 09 21 14 39.98 31 2011 09 21 15 49.13 31 2011 09 21 16 49.07 31 2011 09 21 17 51.47 31 2011 09 21 18 48.01 31 2011 09 21 19 44.68 31 2011 09 21 20 44.07 31 2011 09 21 21 42.51 31 2011 09 21 22 40.32 31 2011 09 21 23 34.88 31 2011 09 22 00 29.41 31 2011 09 22 01 26.31 31 2011 09 22 02 28.77 31 2011 09 22 03 50.41 31 2011 09 22 04 64.75 31 2011 09 22 05 66.97 31 2011 09 22 06 64.90 31 2011 09 22 07 52.84 31 2011 09 22 08 46.08 31 2011 09 22 09 47.95 31 2011 09 22 10 49.90 31 2011 09 22 11 49.87 31 2011 09 22 12 49.64 31 2011 09 22 13 52.37 31 2011 09 22 14 50.23 31 2011 09 22 15 47.69 31 2011 09 22 16 45.42 31 2011 09 22 17 48.72 31 2011 09 22 18 55.01 31 2011 09 22 19 48.94 31 2011 09 22 20 37.69 31 2011 09 22 21 30.24 31 2011 09 22 22 28.04 31 2011 09 22 23 27.62 31 2011 09 23 00 27.50 31 2011 09 23 01 28.35 31 2011 09 23 02 28.63 31 2011 09 23 03 36.09 31 2011 09 23 04 38.59 31 2011 09 23 05 38.10 31 2011 09 23 06 37.48 31 2011 09 23 07 37.64 31 2011 09 23 08 39.28 31 2011 09 23 09 44.73 31 2011 09 23 10 53.32 31 2011 09 23 11 56.04 31 2011 09 23 12 52.79 31 2011 09 23 13 52.75 31 2011 09 23 14 51.72 31 2011 09 23 15 49.98 31 2011 09 23 16 49.02 31 2011 09 23 17 48.87 31 2011 09 23 18 46.91 31 2011 09 23 19 43.54 31 2011 09 23 20 33.65 31 2011 09 23 21 29.77 31 2011 09 23 22 28.16 31 2011 09 23 23 32.67 31 2011 09 24 00 38.68 31 2011 09 24 01 40.83 31 2011 09 24 02 37.18 31 2011 09 24 03 42.94 31 2011 09 24 04 38.64 31 2011 09 24 05 43.53 31 2011 09 24 06 45.86 31 2011 09 24 07 53.95 31 2011 09 24 08 52.53 31 2011 09 24 09 51.05 31 2011 09 24 10 53.47 31 2011 09 24 11 54.45 31 2011 09 24 12 54.62 31 2011 09 24 13 52.03 31 2011 09 24 14 54.06 31 2011 09 24 15 53.18 31 2011 09 24 16 52.19 31 2011 09 24 17 51.91 31 2011 09 24 18 51.76 31 2011 09 24 19 50.78 31 2011 09 24 20 49.87 31 2011 09 24 21 50.20 31 2011 09 24 22 47.56 31 2011 09 24 23 42.23 31 2011 09 25 00 37.14 31 2011 09 25 01 37.05 31 2011 09 25 02 39.97 31 2011 09 25 03 48.33 31 2011 09 25 04 49.36 31 2011 09 25 05 51.99 31 2011 09 25 06 51.19 31 2011 09 25 07 51.10 31 2011 09 25 08 49.94 31 2011 09 25 09 48.56 31 2011 09 25 10 48.43 31 2011 09 25 11 48.81 31 2011 09 25 12 49.10 31 2011 09 25 13 49.84 31 2011 09 25 14 50.41 31 2011 09 25 15 51.13 31 2011 09 25 16 52.19 31 2011 09 25 17 53.38 31 2011 09 25 18 54.12 31 2011 09 25 19 53.11 31 2011 09 25 20 53.07 31 2011 09 25 21 47.99 31 2011 09 25 22 43.15 31 2011 09 25 23 36.71 31 2011 09 26 00 33.65 31 2011 09 26 01 34.33 31 2011 09 26 02 33.78 31 2011 09 26 03 31.21 31 2011 09 26 04 31.78 31 2011 09 26 05 40.96 31 2011 09 26 06 48.72 31 2011 09 26 07 44.37 31 2011 09 26 08 45.65 31 2011 09 26 09 48.54 31 2011 09 26 10 50.21 31 2011 09 26 11 49.84 31 2011 09 26 12 49.21 31 2011 09 26 13 49.40 31 2011 09 26 14 49.69 31 2011 09 26 15 50.04 31 2011 09 26 16 50.29 31 2011 09 26 17 50.38 31 2011 09 26 18 51.11 31 2011 09 26 19 51.86 31 2011 09 26 22 47.72 31 2011 09 26 23 45.85 31 2011 09 27 00 43.51 31 2011 09 27 01 41.98 31 2011 09 27 02 45.74 31 2011 09 27 03 52.73 31 2011 09 27 04 55.22 31 2011 09 27 05 54.89 31 2011 09 27 06 54.37 31 2011 09 27 07 53.49 31 2011 09 27 08 52.47 31 2011 09 27 09 53.69 31 2011 09 27 10 50.42 31 2011 09 27 11 50.19 31 2011 09 27 12 53.70 31 2011 09 27 13 55.08 31 2011 09 27 14 54.54 31 2011 09 27 15 55.84 31 2011 09 27 16 52.63 31 2011 09 27 17 47.18 31 2011 09 27 18 54.96 31 2011 09 27 19 54.77 31 2011 09 27 20 48.40 31 2011 09 27 21 44.45 31 2011 09 27 22 38.82 31 2011 09 27 23 36.36 31 2011 09 28 00 33.41 31 2011 09 28 01 32.36 31 2011 09 28 02 29.77 31 2011 09 28 03 29.25 31 2011 09 28 04 29.04 31 2011 09 28 05 29.27 31 2011 09 28 06 31.82 31 2011 09 28 07 33.61 31 2011 09 28 08 31.55 31 2011 09 28 09 32.00 31 2011 09 28 11 35.76 31 2011 09 28 12 39.01 31 2011 09 28 13 39.23 31 2011 09 28 14 36.15 31 2011 09 28 15 36.14 31 2011 09 28 16 33.95 31 2011 09 28 17 31.55 31 2011 09 28 18 32.71 31 2011 09 28 19 35.29 31 2011 09 28 20 26.86 31 2011 09 28 21 21.71 31 2011 09 28 22 19.02 31 2011 09 28 23 19.25 31 2011 09 29 00 19.52 31 2011 09 29 01 19.17 31 2011 09 29 02 22.83 31 2011 09 29 03 24.84 31 2011 09 29 04 28.74 31 2011 09 29 05 43.35 31 2011 09 29 06 50.87 31 2011 09 29 07 42.69 31 2011 09 29 08 38.80 31 2011 09 29 09 31.92 31 2011 09 29 10 38.12 31 2011 09 29 11 45.50 31 2011 09 29 12 48.82 31 2011 09 29 13 48.71 31 2011 09 29 14 47.80 31 2011 09 29 15 44.50 31 2011 09 29 16 47.00 31 2011 09 29 17 49.32 31 2011 09 29 18 49.07 31 2011 09 29 19 46.06 31 2011 09 29 20 44.28 31 2011 09 29 21 39.65 31 2011 09 29 22 29.03 31 2011 09 29 23 24.62 31 2011 09 30 00 24.02 31 2011 09 30 01 23.88 31 2011 09 30 02 24.41 31 2011 09 30 03 28.41 31 2011 09 30 04 37.72 31 2011 09 30 05 34.80 31 2011 09 30 06 35.98 31 2011 09 30 07 35.36 31 2011 09 30 08 30.87 31 2011 09 30 09 31.04 31 2011 09 30 10 31.87 31 2011 09 30 11 36.17 31 2011 09 30 12 42.89 31 2011 09 30 13 39.82 31 2011 09 30 14 42.58 31 2011 09 30 15 46.31 31 2011 09 30 16 52.42 31 2011 09 30 17 54.08 31 2011 09 30 18 53.70 31 2011 09 30 19 46.59 31 2011 09 30 20 33.01 31 2011 09 30 21 30.73 31 2011 09 30 22 24.75 31 2011 09 30 23 21.98