# file: sum_F113_MM.dat # # Atmospheric measurements of Cl2FC-CClF2 (CFC-113, Freon-113, F113) # # Measurements are from the NOAA/ESRL/GMD/HATS flask program # (http://www.esrl.noaa.gov/gmd/hats/flask/flasks.html). # Instrument ID: Otto # # Location: SUM -- Summit, Greenland -- 72.58 N, 38.48 W, 3217.54 m Elev. # See http://www.esrl.noaa.gov/gmd/dv/site/site_table.html#hats_flask for # more information about flask sampling sites. # # The data reported are from samples collected approximately once per week in # matching, concurrent, flask pairs and later analyzed on a gas chromatograph # with electron capture detection (GC-ECD) located in Boulder, Colorado, USA. # This system uses two standard reference gases for calibration and has been # in operation since very early in 1995. # # These data represent monthly mean estimates computed using those data marked # with a 0 in flag column 7 of the companion file named "sum_F113_All.dat". With # flask samples collected only weekly on average, monthly sampling statistics # are poor at best. As a result, the error reported is either the standard # deviation of the mean or a floor single-sample precision estimate. # # PIs: Dr. James W. Elkins, Dr. Bradley D. Hall, # Debra J. Mondeel, J. David Nance # # National Oceanic and Atmospheric Administration (NOAA) # Earth System Research Laboratory (ESRL) # 325 Broadway, R/GMD1 # Boulder, CO 80305-3328 # # Email: James.W.Elkins@noaa.gov; Bradley.Hall@noaa.gov # Phone: (303) 497-6224 (303) 497-7011 # # Email: Debra.J.Mondeel@noaa.gov; David.Nance@noaa.gov # Phone: (303) 497-6013 (303) 497-7002 # # Fax: (303) 497-6290 # # Data use policy: # If you use this data in a publication or report, we would appreciate that you # contact the principal investigators (PIs) first and discuss your interests. # The PIs can discuss the quality of the data and any potential problems with # its analysis. Please contact the PIs for more information. The data should # be cited in presentations or publications along the following lines: CFC-113 # data from the NOAA/ESRL halocarbons flask program. # # Calibration scale: NOAA 2003 # See http://www.esrl.noaa.gov/gmd/ccl/scales.html for more information about # calibration scales. # # Units: ppt # # Missing value: "nan" # # Data Columns: # yr Year # mon Month # m Monthly mean concentration of F113 in ppt # sd Standard deviation of the mean (or single-sample precision value) # n Number of samples # F113ottoSUMyr F113ottoSUMmon F113ottoSUMm F113ottoSUMsd F113ottoSUMn 2004 1 nan nan 0 2004 2 nan nan 0 2004 3 nan nan 0 2004 4 nan nan 0 2004 5 nan nan 0 2004 6 81.638 0.241 2 2004 7 81.717 0.573 2 2004 8 81.950 1.690 1 2004 9 80.739 0.269 2 2004 10 80.469 0.163 2 2004 11 80.471 0.136 3 2004 12 80.384 0.164 2 2005 1 80.329 0.474 2 2005 2 80.588 0.306 2 2005 3 80.940 0.339 1 2005 4 81.096 0.182 2 2005 5 80.942 0.291 2 2005 6 80.791 0.290 2 2005 7 nan nan 0 2005 8 80.122 0.260 4 2005 9 nan nan 0 2005 10 nan nan 0 2005 11 80.300 0.230 1 2005 12 80.070 0.162 1 2006 1 80.246 0.233 2 2006 2 80.257 0.281 2 2006 3 79.580 0.666 1 2006 4 80.137 0.324 2 2006 5 79.984 0.168 3 2006 6 79.839 0.290 3 2006 7 nan nan 0 2006 8 79.325 0.151 2 2006 9 79.600 0.288 1 2006 10 79.371 0.241 2 2006 11 79.290 0.321 1 2006 12 79.213 0.255 2 2007 1 79.389 0.224 2 2007 2 79.585 0.275 2 2007 3 79.447 0.349 2 2007 4 nan nan 0 2007 5 79.380 0.324 2 2007 6 79.259 0.187 2 2007 7 78.856 0.203 3 2007 8 78.762 0.187 4 2007 9 78.917 0.255 5 2007 10 78.854 0.218 2 2007 11 78.773 0.276 2 2007 12 78.477 0.405 2 2008 1 78.830 0.478 2 2008 2 78.563 0.485 2 2008 3 78.282 0.452 2 2008 4 78.734 0.389 2 2008 5 78.700 0.350 2 2008 6 78.359 0.180 6 2008 7 78.012 0.233 4 2008 8 78.036 0.242 4 2008 9 77.806 0.217 3 2008 10 77.931 0.233 2 2008 11 77.821 0.163 2 2008 12 77.774 0.152 2 2009 1 77.968 0.220 2 2009 2 77.830 0.502 1 2009 3 77.749 0.221 2 2009 4 77.880 0.233 1 2009 5 77.650 0.213 1 2009 6 77.602 0.156 2 2009 7 77.420 0.192 5 2009 8 77.319 0.157 5 2009 9 77.205 0.190 2 2009 10 77.148 0.206 2 2009 11 77.139 0.191 2 2009 12 77.121 0.219 2 2010 1 77.110 0.181 2 2010 2 77.037 0.249 2 2010 3 77.122 0.201 2 2010 4 77.109 0.199 2 2010 5 76.914 0.191 2 2010 6 76.870 0.257 2 2010 7 76.930 0.201 2 2010 8 76.187 0.217 3 2010 9 76.056 0.130 4 2010 10 76.180 0.194 1 2010 11 nan nan 0 2010 12 76.172 0.198 2 2011 1 76.094 0.197 2 2011 2 76.207 0.165 2 2011 3 76.084 0.172 2 2011 4 76.094 0.180 2 2011 5 76.240 0.220 2 2011 6 76.077 0.235 2 2011 7 75.896 0.137 5 2011 8 75.958 0.305 3 2011 9 75.486 0.199 4 2011 10 75.570 0.150 1 2011 11 75.170 0.155 1 2011 12 75.388 0.177 2 2012 1 75.721 0.403 2 2012 2 75.620 0.117 1 2012 3 75.547 0.204 2 2012 4 75.690 0.607 1 2012 5 75.611 0.183 2 2012 6 75.600 0.337 1 2012 7 75.451 0.204 5 2012 8 nan nan 0 2012 9 nan nan 0 2012 10 nan nan 0 2012 11 nan nan 0 2012 12 nan nan 0 2013 1 nan nan 0 2013 2 nan nan 0 2013 3 nan nan 0 2013 4 nan nan 0 2013 5 nan nan 0 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 nan nan 0 2013 9 nan nan 0 2013 10 nan nan 0 2013 11 nan nan 0 2013 12 nan nan 0 2014 1 nan nan 0 2014 2 nan nan 0 2014 3 nan nan 0 2014 4 nan nan 0 2014 5 nan nan 0 2014 6 74.400 0.297 1 2014 7 74.306 0.204 4 2014 8 74.177 0.200 3 2014 9 73.951 0.212 4 2014 10 73.773 0.210 2 2014 11 73.630 0.236 1 2014 12 73.779 0.200 2 2015 1 73.778 0.149 2 2015 2 73.835 0.168 2 2015 3 73.860 0.294 2 2015 4 73.670 0.360 2 2015 5 73.640 0.245 2 2015 6 nan nan 0 2015 7 73.453 0.310 2 2015 8 73.419 0.273 4 2015 9 73.340 0.350 1 2015 10 72.957 0.356 2 2015 11 72.690 0.185 1 2015 12 73.340 0.514 1 2016 1 73.128 0.243 2 2016 2 72.868 0.553 2 2016 3 72.740 0.500 1 2016 4 72.800 0.555 1 2016 5 nan nan 0 2016 6 72.530 0.291 1 2016 7 72.716 0.208 2 2016 8 72.356 0.275 5 2016 9 72.419 0.285 3 2016 10 72.327 0.269 2 2016 11 nan nan 0 2016 12 nan nan 0 2017 1 72.718 0.312 2 2017 2 72.606 0.301 2 2017 3 72.254 0.277 2 2017 4 72.483 0.258 2 2017 5 72.353 0.243 2 2017 6 72.575 0.224 2 2017 7 72.577 0.172 3 2017 8 72.625 0.238 5 2017 9 72.270 0.292 4 2017 10 72.508 0.608 2 2017 11 72.270 0.207 1 2017 12 72.415 0.212 2 2018 1 nan nan 0 2018 2 72.250 0.370 1 2018 3 72.400 0.195 1 2018 4 72.380 0.309 1 2018 5 72.530 0.189 1 2018 6 nan nan 0 2018 7 72.166 0.262 3 2018 8 71.923 0.214 5 2018 9 71.942 0.169 4 2018 10 71.950 0.183 1 2018 11 71.340 0.383 1 2018 12 71.954 0.396 2 2019 1 71.927 0.234 2 2019 2 71.615 0.219 2 2019 3 72.068 0.351 2 2019 4 72.120 0.628 1 2019 5 71.673 0.353 2 2019 6 71.747 0.305 3 2019 7 71.640 0.299 1 2019 8 nan nan 0 2019 9 nan nan 0 2019 10 nan nan 0 2019 11 nan nan 0 2019 12 nan nan 0