# file: kum_F12_MM.dat # # Atmospheric measurements of CCl2F2 (CFC-12, Chlorofluorocarbon-12, F12) # # Measurements are from the NOAA/ESRL/GMD/HATS flask program # (http://www.esrl.noaa.gov/gmd/hats/flask/flasks.html). # Instrument ID: Otto # # Location: KUM -- Cape Kumukahi, Hawaii -- 19.52 N, 154.82 W, 3 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 "kum_F12_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-12 # data from the NOAA/ESRL halocarbons flask program. # # Calibration scale: NOAA 2008 # 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 F12 in ppt # sd Standard deviation of the mean (or single-sample precision value) # n Number of samples # F12ottoKUMyr F12ottoKUMmon F12ottoKUMm F12ottoKUMsd F12ottoKUMn 1995 1 nan nan 0 1995 2 nan nan 0 1995 3 nan nan 0 1995 4 nan nan 0 1995 5 nan nan 0 1995 6 nan nan 0 1995 7 nan nan 0 1995 8 nan nan 0 1995 9 nan nan 0 1995 10 nan nan 0 1995 11 531.820 1.121 1 1995 12 nan nan 0 1996 1 532.120 1.234 2 1996 2 533.910 0.740 1 1996 3 533.410 1.584 2 1996 4 531.894 1.208 2 1996 5 532.039 1.369 3 1996 6 533.166 1.574 3 1996 7 533.517 1.082 4 1996 8 534.348 0.826 3 1996 9 534.845 0.849 4 1996 10 534.593 0.977 2 1996 11 535.986 0.778 2 1996 12 536.185 0.612 3 1997 1 536.520 1.227 1 1997 2 536.481 1.054 3 1997 3 536.572 1.093 2 1997 4 536.000 1.285 3 1997 5 536.330 0.684 1 1997 6 536.682 0.960 2 1997 7 536.949 2.131 3 1997 8 538.290 1.054 1 1997 9 538.420 1.048 2 1997 10 539.680 0.890 3 1997 11 539.611 1.648 2 1997 12 540.110 1.358 2 1998 1 539.777 0.999 3 1998 2 540.774 0.920 3 1998 3 540.001 1.270 3 1998 4 538.665 1.068 2 1998 5 539.573 0.653 4 1998 6 539.539 1.556 2 1998 7 539.227 0.712 4 1998 8 539.556 0.439 4 1998 9 541.021 1.006 2 1998 10 539.980 0.969 1 1998 11 541.432 0.742 3 1998 12 540.980 1.591 1 1999 1 541.868 1.648 2 1999 2 541.298 0.637 2 1999 3 541.018 1.474 3 1999 4 542.580 1.075 1 1999 5 541.826 1.169 2 1999 6 542.379 1.050 4 1999 7 540.895 0.942 3 1999 8 541.468 0.962 4 1999 9 542.474 0.830 2 1999 10 543.705 1.351 4 1999 11 544.694 0.756 5 1999 12 543.252 1.259 3 2000 1 544.158 1.063 4 2000 2 543.912 0.765 5 2000 3 543.362 1.288 3 2000 4 543.942 1.065 4 2000 5 546.022 1.103 2 2000 6 546.018 1.424 4 2000 7 545.158 2.261 3 2000 8 543.886 0.754 4 2000 9 544.228 1.247 2 2000 10 545.451 0.824 4 2000 11 545.824 0.828 4 2000 12 545.315 0.995 3 2001 1 545.065 1.007 4 2001 2 545.631 0.909 4 2001 3 545.168 1.888 2 2001 4 544.547 0.845 5 2001 5 545.960 0.844 1 2001 6 544.571 0.718 5 2001 7 543.731 0.749 4 2001 8 544.513 0.634 3 2001 9 544.556 0.637 4 2001 10 546.184 0.650 5 2001 11 546.287 1.123 4 2001 12 546.392 1.450 4 2002 1 546.325 1.259 4 2002 2 545.965 1.099 4 2002 3 545.698 1.370 4 2002 4 545.553 1.321 2 2002 5 545.834 0.810 3 2002 6 546.119 0.918 5 2002 7 544.674 0.823 2 2002 8 545.187 0.817 4 2002 9 545.566 0.856 5 2002 10 545.639 0.716 2 2002 11 545.728 0.706 3 2002 12 546.243 0.951 5 2003 1 545.699 1.147 3 2003 2 545.769 0.994 4 2003 3 545.702 0.898 5 2003 4 545.294 0.978 4 2003 5 545.571 0.838 4 2003 6 543.961 0.771 5 2003 7 544.385 0.900 4 2003 8 543.350 0.884 3 2003 9 544.998 0.649 5 2003 10 544.678 0.733 4 2003 11 546.471 1.067 2 2003 12 545.394 0.788 4 2004 1 545.358 1.154 3 2004 2 545.315 0.752 4 2004 3 544.543 0.755 3 2004 4 545.005 1.098 4 2004 5 544.101 0.959 4 2004 6 543.897 0.838 5 2004 7 543.351 0.774 4 2004 8 543.343 0.737 5 2004 9 543.269 0.855 4 2004 10 543.783 1.250 4 2004 11 545.723 1.242 4 2004 12 544.124 1.095 4 2005 1 544.062 1.210 4 2005 2 544.667 0.909 5 2005 3 545.127 1.713 4 2005 4 544.238 1.118 4 2005 5 543.347 0.938 5 2005 6 543.342 1.136 4 2005 7 542.707 0.945 5 2005 8 542.738 1.066 4 2005 9 542.332 1.042 4 2005 10 544.280 1.251 5 2005 11 544.699 1.166 3 2005 12 543.488 1.332 3 2006 1 543.744 1.173 5 2006 2 542.487 1.346 4 2006 3 543.217 0.988 4 2006 4 542.846 1.176 5 2006 5 542.708 1.092 4 2006 6 541.696 1.065 4 2006 7 541.534 1.020 5 2006 8 540.881 0.549 4 2006 9 540.802 0.760 4 2006 10 540.660 0.938 5 2006 11 541.190 0.811 4 2006 12 541.483 0.994 4 2007 1 540.208 0.803 4 2007 2 541.145 1.009 4 2007 3 539.463 0.915 4 2007 4 540.240 1.065 5 2007 5 539.671 0.710 3 2007 6 539.354 0.805 4 2007 7 538.868 1.282 4 2007 8 538.753 1.118 4 2007 9 538.167 0.712 4 2007 10 539.397 1.270 4 2007 11 538.553 1.161 4 2007 12 538.277 1.186 5 2008 1 537.523 1.272 3 2008 2 537.845 1.322 4 2008 3 536.991 0.998 5 2008 4 536.957 1.234 4 2008 5 537.020 0.727 4 2008 6 536.595 1.053 5 2008 7 535.809 1.025 4 2008 8 535.819 0.834 4 2008 9 536.273 0.805 5 2008 10 536.253 0.786 4 2008 11 536.148 0.865 3 2008 12 536.540 1.218 4 2009 1 536.253 1.050 3 2009 2 535.284 0.764 5 2009 3 535.940 1.219 3 2009 4 534.715 0.783 5 2009 5 534.635 1.000 3 2009 6 534.259 0.835 5 2009 7 533.526 1.050 3 2009 8 534.018 1.142 5 2009 9 532.967 0.941 4 2009 10 532.916 0.878 4 2009 11 533.211 0.865 5 2009 12 532.962 1.105 4 2010 1 532.175 0.780 3 2010 2 532.032 1.372 3 2010 3 533.342 1.214 3 2010 4 531.572 1.019 4 2010 5 531.196 0.819 5 2010 6 530.462 1.315 4 2010 7 531.103 0.754 4 2010 8 529.571 0.752 5 2010 9 530.040 0.966 4 2010 10 530.281 0.651 4 2010 11 530.256 1.252 3 2010 12 529.615 1.072 4 2011 1 530.617 1.337 3 2011 2 529.099 1.651 4 2011 3 528.385 1.004 5 2011 4 530.179 0.896 4 2011 5 529.461 0.940 5 2011 6 528.559 0.823 4 2011 7 528.426 0.767 3 2011 8 527.719 1.037 4 2011 9 527.404 0.867 4 2011 10 529.015 0.893 4 2011 11 527.633 0.762 4 2011 12 527.602 1.657 2 2012 1 527.328 1.064 3 2012 2 527.095 1.149 5 2012 3 526.452 1.395 2 2012 4 526.899 0.833 5 2012 5 525.598 1.466 4 2012 6 526.002 0.932 4 2012 7 524.755 0.898 5 2012 8 524.310 0.726 4 2012 9 525.720 1.080 2 2012 10 524.967 1.122 4 2012 11 524.444 0.720 4 2012 12 525.036 0.872 4 2013 1 524.040 1.076 4 2013 2 523.651 0.991 2 2013 3 524.104 0.735 4 2013 4 523.730 0.787 4 2013 5 523.414 0.898 3 2013 6 523.572 0.738 3 2013 7 522.837 1.044 5 2013 8 522.332 0.752 4 2013 9 522.624 0.883 3 2013 10 522.057 1.256 2 2013 11 521.945 0.834 4 2013 12 520.963 0.768 5 2014 1 521.651 0.800 4 2014 2 521.382 1.020 4 2014 3 521.518 0.994 5 2014 4 521.210 0.894 4 2014 5 521.224 0.602 3 2014 6 521.116 0.864 4 2014 7 520.385 0.688 4 2014 8 520.574 0.515 3 2014 9 521.004 0.678 4 2014 10 520.467 0.848 3 2014 11 520.282 0.860 4 2014 12 520.345 0.777 5 2015 1 519.901 0.906 4 2015 2 519.194 1.587 4 2015 3 519.562 2.384 2 2015 4 nan nan 0 2015 5 518.250 2.760 1 2015 6 519.100 2.752 1 2015 7 nan nan 0 2015 8 nan nan 0 2015 9 518.664 2.014 3 2015 10 517.107 1.407 3 2015 11 517.543 1.396 2 2015 12 nan nan 0 2016 1 nan nan 0 2016 2 516.000 5.263 1 2016 3 514.580 2.387 2 2016 4 515.120 8.457 1 2016 5 515.960 5.506 1 2016 6 nan nan 0 2016 7 nan nan 0 2016 8 nan nan 0 2016 9 514.800 1.944 1 2016 10 nan nan 0 2016 11 515.153 1.294 2 2016 12 nan nan 0 2017 1 nan nan 0 2017 2 514.354 2.652 2 2017 3 513.229 2.619 2 2017 4 nan nan 0 2017 5 nan nan 0 2017 6 nan nan 0 2017 7 nan nan 0 2017 8 nan nan 0 2017 9 nan nan 0 2017 10 nan nan 0 2017 11 nan nan 0 2017 12 nan nan 0