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 2013 04 01 00 51.55 31 2013 04 01 01 53.99 31 2013 04 01 02 56.95 31 2013 04 01 03 59.80 31 2013 04 01 04 59.38 31 2013 04 01 05 59.25 31 2013 04 01 06 64.58 31 2013 04 01 07 65.35 31 2013 04 01 08 64.34 31 2013 04 01 09 63.20 31 2013 04 01 10 62.03 31 2013 04 01 11 62.12 31 2013 04 01 12 61.87 31 2013 04 01 13 62.72 31 2013 04 01 14 62.61 31 2013 04 01 15 62.72 31 2013 04 01 16 62.28 31 2013 04 01 17 61.79 31 2013 04 01 18 62.63 31 2013 04 01 19 62.76 31 2013 04 01 20 57.99 31 2013 04 01 21 57.87 31 2013 04 01 22 54.96 31 2013 04 01 23 54.99 31 2013 04 02 00 49.36 31 2013 04 02 01 49.52 31 2013 04 02 02 48.60 31 2013 04 02 03 48.30 31 2013 04 02 04 46.29 31 2013 04 02 05 46.10 31 2013 04 02 06 40.24 31 2013 04 02 07 37.66 31 2013 04 02 08 37.66 31 2013 04 02 09 38.62 31 2013 04 02 10 41.39 31 2013 04 02 11 40.94 31 2013 04 02 12 41.45 31 2013 04 02 13 42.50 31 2013 04 02 14 49.70 31 2013 04 02 15 64.83 31 2013 04 02 16 61.80 31 2013 04 02 17 53.11 31 2013 04 02 18 56.89 31 2013 04 02 19 57.64 31 2013 04 02 20 59.28 31 2013 04 02 21 61.41 31 2013 04 02 22 65.97 31 2013 04 02 23 63.41 31 2013 04 03 00 63.07 31 2013 04 03 01 64.84 31 2013 04 03 02 62.38 31 2013 04 03 03 64.92 31 2013 04 03 04 65.18 31 2013 04 03 05 65.80 31 2013 04 03 06 64.48 31 2013 04 03 07 61.88 31 2013 04 03 08 60.35 31 2013 04 03 09 61.11 31 2013 04 03 10 60.53 31 2013 04 03 11 59.53 31 2013 04 03 12 60.45 31 2013 04 03 13 61.59 31 2013 04 03 14 62.21 31 2013 04 03 15 60.58 31 2013 04 03 16 58.31 31 2013 04 03 17 54.51 31 2013 04 03 18 51.22 31 2013 04 03 19 52.20 31 2013 04 03 20 52.88 31 2013 04 03 21 54.00 31 2013 04 03 22 50.22 31 2013 04 03 23 48.67 31 2013 04 04 00 47.11 31 2013 04 04 01 48.90 31 2013 04 04 02 45.49 31 2013 04 04 03 47.04 31 2013 04 04 04 61.15 31 2013 04 04 05 54.06 31 2013 04 04 06 52.62 31 2013 04 04 07 51.69 31 2013 04 04 08 49.57 31 2013 04 04 09 51.67 31 2013 04 04 10 64.36 31 2013 04 04 11 60.54 31 2013 04 04 12 59.88 31 2013 04 04 13 60.73 31 2013 04 04 14 58.62 31 2013 04 04 15 59.08 31 2013 04 04 16 52.11 31 2013 04 04 17 46.91 31 2013 04 04 18 48.88 31 2013 04 04 19 50.27 31 2013 04 04 20 46.54 31 2013 04 04 21 39.28 31 2013 04 04 22 38.09 31 2013 04 04 23 39.42 31 2013 04 05 00 37.58 31 2013 04 05 01 39.55 31 2013 04 05 02 40.80 31 2013 04 05 03 39.95 31 2013 04 05 04 37.34 31 2013 04 05 05 43.48 31 2013 04 05 06 43.49 31 2013 04 05 07 42.22 31 2013 04 05 08 51.47 31 2013 04 05 09 53.13 31 2013 04 05 10 53.21 31 2013 04 05 11 53.86 31 2013 04 05 12 56.61 31 2013 04 05 13 57.91 31 2013 04 05 14 57.15 31 2013 04 05 15 57.37 31 2013 04 05 16 57.21 31 2013 04 05 17 58.44 31 2013 04 05 18 54.42 31 2013 04 05 21 45.71 31 2013 04 08 12 71.00 31 2013 04 08 13 62.85 31 2013 04 08 14 60.64 31 2013 04 08 15 59.87 31 2013 04 08 16 55.65 31 2013 04 08 17 58.29 31 2013 04 08 18 60.42 31 2013 04 08 19 62.12 31 2013 04 08 20 62.91 31 2013 04 08 21 54.19 31 2013 04 08 22 39.37 31 2013 04 08 23 42.81 31 2013 04 09 00 37.78 31 2013 04 09 01 36.91 31 2013 04 09 02 38.89 31 2013 04 09 03 44.47 31 2013 04 09 04 48.40 31 2013 04 09 05 41.15 31 2013 04 09 06 36.95 31 2013 04 09 07 35.97 31 2013 04 09 08 37.13 31 2013 04 09 09 36.61 31 2013 04 09 10 37.06 31 2013 04 09 11 35.17 31 2013 04 09 12 34.65 31 2013 04 09 13 32.15 31 2013 04 09 14 40.05 31 2013 04 09 15 43.46 31 2013 04 09 16 45.30 31 2013 04 09 17 50.62 31 2013 04 09 18 45.68 31 2013 04 09 19 44.19 31 2013 04 09 20 43.20 31 2013 04 09 21 39.55 31 2013 04 09 22 34.89 31 2013 04 09 23 32.42 31 2013 04 10 00 32.74 31 2013 04 10 01 33.06 31 2013 04 10 02 33.30 31 2013 04 10 03 34.32 31 2013 04 10 04 34.21 31 2013 04 10 05 48.99 31 2013 04 10 06 49.86 31 2013 04 10 07 49.05 31 2013 04 10 08 47.53 31 2013 04 10 09 51.07 31 2013 04 10 10 54.22 31 2013 04 10 11 57.11 31 2013 04 10 12 56.34 31 2013 04 10 13 54.43 31 2013 04 10 14 54.39 31 2013 04 10 15 54.53 31 2013 04 10 16 55.07 31 2013 04 10 17 56.14 31 2013 04 10 18 54.87 31 2013 04 10 19 50.86 31 2013 04 10 20 47.88 31 2013 04 10 21 43.92 31 2013 04 10 22 40.77 31 2013 04 10 23 39.17 31 2013 04 11 00 38.60 31 2013 04 11 01 36.47 31 2013 04 11 02 36.15 31 2013 04 11 03 34.24 31 2013 04 11 04 31.96 31 2013 04 11 05 34.30 31 2013 04 11 06 34.61 31 2013 04 11 07 35.81 31 2013 04 11 08 36.21 31 2013 04 11 09 36.77 31 2013 04 11 10 37.14 31 2013 04 11 11 36.53 31 2013 04 11 12 36.37 31 2013 04 11 13 37.91 31 2013 04 11 14 37.93 31 2013 04 11 15 38.46 31 2013 04 11 16 39.03 31 2013 04 11 17 42.73 31 2013 04 11 18 45.59 31 2013 04 11 19 46.90 31 2013 04 11 20 45.14 31 2013 04 11 21 43.33 31 2013 04 11 22 41.70 31 2013 04 11 23 38.06 31 2013 04 12 00 36.63 31 2013 04 12 01 35.22 31 2013 04 12 02 37.02 31 2013 04 12 03 42.88 31 2013 04 12 04 41.48 31 2013 04 12 05 39.81 31 2013 04 12 06 48.58 31 2013 04 12 07 53.44 31 2013 04 12 08 52.94 31 2013 04 12 09 47.60 31 2013 04 12 10 46.05 31 2013 04 12 11 44.18 31 2013 04 12 12 44.39 31 2013 04 12 13 43.91 31 2013 04 12 14 46.17 31 2013 04 12 15 50.85 31 2013 04 12 16 54.11 31 2013 04 12 17 55.23 31 2013 04 12 18 56.36 31 2013 04 12 19 53.09 31 2013 04 12 20 50.52 31 2013 04 12 21 45.53 31 2013 04 12 22 42.02 31 2013 04 12 23 37.13 31 2013 04 13 00 44.16 31 2013 04 13 01 49.17 31 2013 04 13 02 48.52 31 2013 04 13 03 39.60 31 2013 04 13 04 38.51 31 2013 04 13 05 37.61 31 2013 04 13 06 38.13 31 2013 04 13 07 33.94 31 2013 04 13 08 30.35 31 2013 04 13 09 27.62 31 2013 04 13 10 28.21 31 2013 04 13 11 28.10 31 2013 04 13 12 29.13 31 2013 04 13 13 29.39 31 2013 04 13 14 28.92 31 2013 04 13 15 29.19 31 2013 04 13 16 28.81 31 2013 04 13 17 29.60 31 2013 04 13 18 30.08 31 2013 04 13 19 31.26 31 2013 04 13 20 33.96 31 2013 04 13 21 36.41 31 2013 04 13 22 39.16 31 2013 04 13 23 36.50 31 2013 04 14 00 37.63 31 2013 04 14 01 40.93 31 2013 04 14 02 38.55 31 2013 04 14 03 32.36 31 2013 04 14 04 33.86 31 2013 04 14 05 32.71 31 2013 04 14 06 32.05 31 2013 04 14 07 32.35 31 2013 04 14 08 33.11 31 2013 04 14 09 35.17 31 2013 04 14 10 34.89 31 2013 04 14 11 37.45 31 2013 04 14 12 35.98 31 2013 04 14 13 32.93 31 2013 04 14 14 35.43 31 2013 04 14 15 35.24 31 2013 04 14 16 31.28 31 2013 04 14 17 31.93 31 2013 04 14 18 31.92 31 2013 04 14 19 32.36 31 2013 04 14 20 35.37 31 2013 04 14 21 35.53 31 2013 04 14 22 35.45 31 2013 04 14 23 37.68 31 2013 04 15 00 36.87 31 2013 04 15 01 35.47 31 2013 04 15 02 37.36 31 2013 04 15 03 36.14 31 2013 04 15 04 36.11 31 2013 04 15 05 40.07 31 2013 04 15 06 35.29 31 2013 04 15 07 47.00 31 2013 04 15 08 40.54 31 2013 04 15 09 38.99 31 2013 04 15 10 52.51 31 2013 04 15 11 55.25 31 2013 04 15 12 54.90 31 2013 04 15 13 53.86 31 2013 04 15 14 48.56 31 2013 04 15 15 47.46 31 2013 04 15 16 43.37 31 2013 04 15 17 48.74 31 2013 04 15 18 59.44 31 2013 04 15 19 50.73 31 2013 04 15 20 37.23 31 2013 04 15 21 32.29 31 2013 04 15 22 30.89 31 2013 04 15 23 31.45 31 2013 04 16 00 32.61 31 2013 04 16 01 30.61 31 2013 04 16 02 29.40 31 2013 04 16 03 28.98 31 2013 04 16 04 27.59 31 2013 04 16 05 37.82 31 2013 04 16 06 49.37 31 2013 04 16 07 60.93 31 2013 04 16 08 50.03 31 2013 04 16 09 50.22 31 2013 04 16 10 55.87 31 2013 04 16 11 60.46 31 2013 04 16 12 58.83 31 2013 04 16 13 58.57 31 2013 04 16 14 59.33 31 2013 04 16 15 52.17 31 2013 04 16 16 56.88 31 2013 04 16 17 49.85 31 2013 04 16 18 39.91 31 2013 04 16 21 31.23 31 2013 04 16 22 27.88 31 2013 04 16 23 31.27 31 2013 04 17 00 32.23 31 2013 04 17 01 35.18 31 2013 04 17 02 34.58 31 2013 04 17 03 34.11 31 2013 04 17 04 35.17 31 2013 04 17 05 42.48 31 2013 04 17 06 47.39 31 2013 04 17 07 46.14 31 2013 04 17 08 42.40 31 2013 04 17 09 57.44 31 2013 04 17 10 62.45 31 2013 04 17 11 64.29 31 2013 04 17 12 65.54 31 2013 04 17 13 63.69 31 2013 04 17 14 62.25 31 2013 04 17 15 60.72 31 2013 04 17 16 63.00 31 2013 04 17 17 66.04 31 2013 04 17 18 72.49 31 2013 04 17 19 71.49 31 2013 04 17 20 62.79 31 2013 04 17 21 57.57 31 2013 04 17 22 56.09 31 2013 04 17 23 54.04 31 2013 04 18 00 49.31 31 2013 04 18 01 49.80 31 2013 04 18 02 53.19 31 2013 04 18 03 56.72 31 2013 04 18 04 58.21 31 2013 04 18 05 53.66 31 2013 04 18 06 52.88 31 2013 04 18 07 55.29 31 2013 04 18 08 56.86 31 2013 04 18 09 57.85 31 2013 04 18 10 58.99 31 2013 04 18 11 58.18 31 2013 04 18 12 54.46 31 2013 04 18 13 53.72 31 2013 04 18 14 55.72 31 2013 04 18 15 55.50 31 2013 04 18 16 51.54 31 2013 04 18 17 49.84 31 2013 04 18 18 51.66 31 2013 04 18 19 49.75 31 2013 04 18 20 46.62 31 2013 04 18 21 39.84 31 2013 04 18 22 36.36 31 2013 04 18 23 33.72 31 2013 04 19 00 37.70 31 2013 04 19 01 43.09 31 2013 04 19 02 45.65 31 2013 04 19 03 37.84 31 2013 04 19 04 37.71 31 2013 04 19 05 38.73 31 2013 04 19 06 45.98 31 2013 04 19 07 47.98 31 2013 04 19 08 53.48 31 2013 04 19 09 49.26 31 2013 04 19 10 53.42 31 2013 04 19 11 51.27 31 2013 04 19 12 47.83 31 2013 04 19 13 46.70 31 2013 04 19 14 48.76 31 2013 04 19 15 47.50 31 2013 04 19 16 50.21 31 2013 04 19 17 50.29 31 2013 04 19 18 51.81 31 2013 04 19 19 48.62 31 2013 04 19 20 46.51 31 2013 04 19 21 40.59 31 2013 04 19 22 32.36 31 2013 04 19 23 29.54 31 2013 04 20 00 29.59 31 2013 04 20 01 27.85 31 2013 04 20 02 27.51 31 2013 04 20 03 27.99 31 2013 04 20 04 28.11 31 2013 04 20 05 31.05 31 2013 04 20 06 29.80 31 2013 04 20 07 30.85 31 2013 04 20 08 28.85 31 2013 04 20 09 29.68 31 2013 04 20 10 29.83 31 2013 04 20 11 30.74 31 2013 04 20 12 32.00 31 2013 04 20 13 34.14 31 2013 04 20 14 35.97 31 2013 04 20 15 39.54 31 2013 04 20 16 39.61 31 2013 04 20 17 39.75 31 2013 04 20 18 38.25 31 2013 04 20 19 38.91 31 2013 04 20 20 37.81 31 2013 04 20 21 36.33 31 2013 04 20 22 36.79 31 2013 04 20 23 38.75 31 2013 04 21 00 37.77 31 2013 04 21 01 38.16 31 2013 04 21 02 38.10 31 2013 04 21 03 39.09 31 2013 04 21 04 44.33 31 2013 04 21 05 42.39 31 2013 04 21 06 42.03 31 2013 04 21 07 55.43 31 2013 04 21 08 65.46 31 2013 04 21 09 68.10 31 2013 04 21 10 67.03 31 2013 04 21 11 74.01 31 2013 04 21 12 72.84 31 2013 04 21 13 70.26 31 2013 04 21 14 77.90 31 2013 04 21 15 80.53 31 2013 04 21 16 81.36 31 2013 04 21 17 80.23 31 2013 04 21 18 69.86 31 2013 04 21 19 52.22 31 2013 04 21 20 45.89 31 2013 04 21 21 39.60 31 2013 04 21 22 38.11 31 2013 04 21 23 38.26 31 2013 04 22 00 39.29 31 2013 04 22 01 41.47 31 2013 04 22 02 42.31 31 2013 04 22 03 38.59 31 2013 04 22 04 35.27 31 2013 04 22 05 35.74 31 2013 04 22 06 39.23 31 2013 04 22 07 43.41 31 2013 04 22 08 51.63 31 2013 04 22 09 60.26 31 2013 04 22 10 74.87 31 2013 04 22 11 67.69 31 2013 04 22 12 82.02 31 2013 04 22 13 81.29 31 2013 04 22 14 82.38 31 2013 04 22 15 82.41 31 2013 04 22 16 82.54 31 2013 04 22 17 84.33 31 2013 04 22 18 71.45 31 2013 04 22 19 53.60 31 2013 04 22 20 42.77 31 2013 04 22 21 35.93 31 2013 04 22 22 49.39 31 2013 04 22 23 63.25 31 2013 04 23 00 56.66 31 2013 04 23 01 50.70 31 2013 04 23 02 49.14 31 2013 04 23 03 46.11 31 2013 04 23 04 43.97 31 2013 04 23 05 39.35 31 2013 04 23 06 38.57 31 2013 04 23 07 37.56 31 2013 04 23 08 41.12 31 2013 04 23 09 41.55 31 2013 04 23 10 41.85 31 2013 04 23 11 38.96 31 2013 04 23 12 38.82 31 2013 04 23 13 39.52 31 2013 04 23 14 39.83 31 2013 04 23 15 42.69 31 2013 04 23 16 52.92 31 2013 04 23 17 51.75 31 2013 04 23 18 55.61 31 2013 04 23 19 55.48 31 2013 04 23 20 42.55 31 2013 04 23 21 46.63 31 2013 04 23 22 41.98 31 2013 04 23 23 42.29 31 2013 04 24 00 47.32 31 2013 04 24 01 44.09 31 2013 04 24 02 41.63 31 2013 04 24 03 39.80 31 2013 04 24 04 37.02 31 2013 04 24 05 37.41 31 2013 04 24 06 31.44 31 2013 04 24 07 30.60 31 2013 04 24 08 31.60 31 2013 04 24 09 32.74 31 2013 04 24 10 33.63 31 2013 04 24 11 31.66 31 2013 04 24 12 31.22 31 2013 04 24 13 32.06 31 2013 04 24 14 32.40 31 2013 04 24 15 32.92 31 2013 04 24 16 32.82 31 2013 04 24 17 32.65 31 2013 04 24 18 32.99 31 2013 04 24 20 32.76 31 2013 04 24 21 30.73 31 2013 04 24 22 31.42 31 2013 04 24 23 31.22 31 2013 04 25 00 30.57 31 2013 04 25 01 29.66 31 2013 04 25 02 30.16 31 2013 04 25 03 27.01 31 2013 04 25 04 25.32 31 2013 04 25 05 25.78 31 2013 04 25 06 26.33 31 2013 04 25 07 25.60 31 2013 04 25 08 29.25 31 2013 04 25 09 33.35 31 2013 04 25 10 38.83 31 2013 04 25 11 40.63 31 2013 04 25 12 41.20 31 2013 04 25 13 44.36 31 2013 04 25 14 44.58 31 2013 04 25 15 41.89 31 2013 04 25 16 41.93 31 2013 04 25 17 43.96 31 2013 04 25 18 44.17 31 2013 04 25 19 44.08 31 2013 04 25 20 40.70 31 2013 04 25 21 40.62 31 2013 04 25 22 40.36 31 2013 04 25 23 36.25 31 2013 04 26 00 36.54 31 2013 04 26 01 32.26 31 2013 04 26 02 33.44 31 2013 04 26 03 37.30 31 2013 04 26 04 41.42 31 2013 04 26 05 40.95 31 2013 04 26 06 45.93 31 2013 04 26 07 48.99 31 2013 04 26 08 54.77 31 2013 04 26 09 55.68 31 2013 04 26 10 55.83 31 2013 04 26 11 62.39 31 2013 04 26 12 62.75 31 2013 04 26 13 63.44 31 2013 04 26 14 56.42 31 2013 04 26 15 61.33 31 2013 04 26 16 56.67 31 2013 04 26 17 59.01 31 2013 04 26 18 63.04 31 2013 04 26 19 59.01 31 2013 04 26 20 65.46 31 2013 04 26 21 59.91 31 2013 04 26 22 57.40 31 2013 04 26 23 44.85 31 2013 04 27 00 42.92 31 2013 04 27 01 43.05 31 2013 04 27 02 42.57 31 2013 04 27 03 43.13 31 2013 04 27 04 50.19 31 2013 04 27 05 72.12 31 2013 04 27 06 72.22 31 2013 04 27 07 69.78 31 2013 04 27 08 69.68 31 2013 04 27 09 69.02 31 2013 04 27 10 72.44 31 2013 04 27 11 73.42 31 2013 04 27 12 73.08 31 2013 04 27 13 71.32 31 2013 04 27 14 68.57 31 2013 04 27 15 68.94 31 2013 04 27 16 69.40 31 2013 04 27 17 69.13 31 2013 04 27 18 64.02 31 2013 04 27 19 52.21 31 2013 04 27 20 44.12 31 2013 04 27 21 45.96 31 2013 04 27 22 36.80 31 2013 04 27 23 36.60 31 2013 04 28 00 33.72 31 2013 04 28 01 33.68 31 2013 04 28 02 34.58 31 2013 04 28 03 32.81 31 2013 04 28 04 39.24 31 2013 04 28 05 39.05 31 2013 04 28 06 34.76 31 2013 04 28 07 48.95 31 2013 04 28 08 55.83 31 2013 04 28 09 69.18 31 2013 04 28 10 71.21 31 2013 04 28 11 74.67 31 2013 04 28 12 76.15 31 2013 04 28 13 76.65 31 2013 04 28 14 76.53 31 2013 04 28 15 78.51 31 2013 04 28 16 79.96 31 2013 04 28 17 75.42 31 2013 04 28 18 69.65 31 2013 04 28 19 57.97 31 2013 04 28 20 49.40 31 2013 04 28 21 37.93 31 2013 04 28 22 34.24 31 2013 04 28 23 34.11 31 2013 04 29 00 37.49 31 2013 04 29 01 39.90 31 2013 04 29 02 41.08 31 2013 04 29 03 39.35 31 2013 04 29 04 40.45 31 2013 04 29 05 48.21 31 2013 04 29 06 80.41 31 2013 04 29 07 78.69 31 2013 04 29 08 72.56 31 2013 04 29 09 71.39 31 2013 04 29 10 72.15 31 2013 04 29 11 70.77 31 2013 04 29 12 75.04 31 2013 04 29 13 78.08 31 2013 04 29 14 77.66 31 2013 04 29 15 83.55 31 2013 04 29 16 84.70 31 2013 04 29 17 83.70 31 2013 04 29 18 76.06 31 2013 04 29 19 67.39 31 2013 04 29 20 43.60 31 2013 04 29 21 32.48 31 2013 04 29 22 33.31 31 2013 04 29 23 37.67 31 2013 04 30 00 39.30 31 2013 04 30 01 41.29 31 2013 04 30 02 41.62 31 2013 04 30 03 48.06 31 2013 04 30 04 53.07 31 2013 04 30 05 71.62 31 2013 04 30 06 73.81 31 2013 04 30 07 69.57 31 2013 04 30 08 67.13 31 2013 04 30 09 66.56 31 2013 04 30 10 61.99 31 2013 04 30 11 63.33 31 2013 04 30 12 63.93 31 2013 04 30 13 63.69 31 2013 04 30 14 63.14 31 2013 04 30 15 63.53 31 2013 04 30 16 64.68 31 2013 04 30 17 64.20 31 2013 04 30 18 63.87 31 2013 04 30 19 58.06 31 2013 04 30 20 51.06 31 2013 04 30 21 45.13 31 2013 04 30 22 41.72 31 2013 04 30 23 37.65