# file: cgo_SF6_MM.dat # # Atmospheric measurements of SF6 (Sulphur Hexaflouride) # # Measurements are from the NOAA/ESRL/GMD/HATS flask program # (http://www.esrl.noaa.gov/gmd/hats/flask/flasks.html). # Instrument ID: Otto # # Location: CGO -- Cape Grim, Tasmania -- 40.68 S, 144.69 E, 94 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 "cgo_SF6_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: Sulphur Hexaflouride # data from the NOAA/ESRL halocarbons flask program. # # Calibration scale: NOAA 2014 # 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 SF6 in ppt # sd Standard deviation of the mean (or single-sample precision value) # n Number of samples # SF6ottoCGOyr SF6ottoCGOmon SF6ottoCGOm SF6ottoCGOsd SF6ottoCGOn 1994 1 nan nan 0 1994 2 nan nan 0 1994 3 nan nan 0 1994 4 nan nan 0 1994 5 nan nan 0 1994 6 nan nan 0 1994 7 nan nan 0 1994 8 nan nan 0 1994 9 nan nan 0 1994 10 nan nan 0 1994 11 nan nan 0 1994 12 3.073 0.108 3 1995 1 3.210 0.198 1 1995 2 3.178 0.266 2 1995 3 3.234 0.153 4 1995 4 3.168 0.316 3 1995 5 3.246 0.152 4 1995 6 3.266 0.168 2 1995 7 3.190 0.226 1 1995 8 3.217 0.264 2 1995 9 3.320 0.092 1 1995 10 3.334 0.060 4 1995 11 3.401 0.071 3 1995 12 nan nan 0 1996 1 3.413 0.124 2 1996 2 3.428 0.084 3 1996 3 3.457 0.085 4 1996 4 3.426 0.093 2 1996 5 3.512 0.095 4 1996 6 3.522 0.082 3 1996 7 3.497 0.091 3 1996 8 3.514 0.077 4 1996 9 3.548 0.101 3 1996 10 3.574 0.064 3 1996 11 3.576 0.097 2 1996 12 3.680 0.150 1 1997 1 3.686 0.086 2 1997 2 3.690 0.133 2 1997 3 3.688 0.076 5 1997 4 3.670 0.075 1 1997 5 3.730 0.118 3 1997 6 3.765 0.157 2 1997 7 3.812 0.074 5 1997 8 3.783 0.028 2 1997 9 3.801 0.072 3 1997 10 3.850 0.087 1 1997 11 3.858 0.051 4 1997 12 3.871 0.049 4 1998 1 3.849 0.047 2 1998 2 3.852 0.057 3 1998 3 3.934 0.058 5 1998 4 3.923 0.055 4 1998 5 3.964 0.066 3 1998 6 3.989 0.050 4 1998 7 3.997 0.060 3 1998 8 4.028 0.079 2 1998 9 4.082 0.070 4 1998 10 4.080 0.045 5 1998 11 4.097 0.052 5 1998 12 4.112 0.065 3 1999 1 4.114 0.084 2 1999 2 4.147 0.067 3 1999 3 4.170 0.054 5 1999 4 4.169 0.058 4 1999 5 4.218 0.063 4 1999 6 4.208 0.063 3 1999 7 4.217 0.050 2 1999 8 4.248 0.057 3 1999 9 4.266 0.052 5 1999 10 4.299 0.044 6 1999 11 4.310 0.045 3 1999 12 4.280 0.063 2 2000 1 4.310 0.075 1 2000 2 4.326 0.062 3 2000 3 4.340 0.055 4 2000 4 4.355 0.053 3 2000 5 4.350 0.067 4 2000 6 4.399 0.048 4 2000 7 4.414 0.049 4 2000 8 4.481 0.042 4 2000 9 4.474 0.064 4 2000 10 4.485 0.050 4 2000 11 4.504 0.053 4 2000 12 4.491 0.050 3 2001 1 4.535 0.045 4 2001 2 4.549 0.044 3 2001 3 4.588 0.053 3 2001 4 4.566 0.038 3 2001 5 4.627 0.054 2 2001 6 4.639 0.050 4 2001 7 4.609 0.064 3 2001 8 4.650 0.052 2 2001 9 4.683 0.053 4 2001 10 4.713 0.039 5 2001 11 4.735 0.062 3 2001 12 4.727 0.052 2 2002 1 4.748 0.037 5 2002 2 4.771 0.047 4 2002 3 4.788 0.063 4 2002 4 4.806 0.078 2 2002 5 4.823 0.058 3 2002 6 4.877 0.066 5 2002 7 4.904 0.043 3 2002 8 4.904 0.064 3 2002 9 4.918 0.064 3 2002 10 4.957 0.059 6 2002 11 4.952 0.049 4 2002 12 4.947 0.055 5 2003 1 4.970 0.041 5 2003 2 5.002 0.040 3 2003 3 4.970 0.060 3 2003 4 5.008 0.063 3 2003 5 5.071 0.049 4 2003 6 5.046 0.055 3 2003 7 5.113 0.044 3 2003 8 5.106 0.047 5 2003 9 5.121 0.036 4 2003 10 5.136 0.070 3 2003 11 5.158 0.051 5 2003 12 5.166 0.085 3 2004 1 5.218 0.053 2 2004 2 5.214 0.063 7 2004 3 5.211 0.062 6 2004 4 5.261 0.061 3 2004 5 5.275 0.056 6 2004 6 5.258 0.057 6 2004 7 5.296 0.058 6 2004 8 5.295 0.075 3 2004 9 5.343 0.099 6 2004 10 5.350 0.066 4 2004 11 5.381 0.046 5 2004 12 5.434 0.047 5 2005 1 5.448 0.041 5 2005 2 5.458 0.045 5 2005 3 5.433 0.062 3 2005 4 5.444 0.053 5 2005 5 5.471 0.056 6 2005 6 5.520 0.053 2 2005 7 5.508 0.052 3 2005 8 5.511 0.051 5 2005 9 5.582 0.054 3 2005 10 5.573 0.068 3 2005 11 5.600 0.043 2 2005 12 5.626 0.032 5 2006 1 5.628 0.060 3 2006 2 5.605 0.055 4 2006 3 5.661 0.048 4 2006 4 5.663 0.042 4 2006 5 5.667 0.057 2 2006 6 5.720 0.039 3 2006 7 5.715 0.038 3 2006 8 5.753 0.064 3 2006 9 5.774 0.058 5 2006 10 5.784 0.057 4 2006 11 5.821 0.053 4 2006 12 5.849 0.058 4 2007 1 5.857 0.063 4 2007 2 5.821 0.057 2 2007 3 5.899 0.078 4 2007 4 nan nan 0 2007 5 5.960 0.065 4 2007 6 5.977 0.088 3 2007 7 5.997 0.036 4 2007 8 6.017 0.058 4 2007 9 6.057 0.047 5 2007 10 6.095 0.046 4 2007 11 6.119 0.040 3 2007 12 6.137 0.044 4 2008 1 6.133 0.056 4 2008 2 6.173 0.059 5 2008 3 6.204 0.040 4 2008 4 6.230 0.055 2 2008 5 6.254 0.059 2 2008 6 6.269 0.047 4 2008 7 6.268 0.049 7 2008 8 6.311 0.061 3 2008 9 6.346 0.045 5 2008 10 6.352 0.047 5 2008 11 6.344 0.063 4 2008 12 6.383 0.048 5 2009 1 6.418 0.051 2 2009 2 6.436 0.058 2 2009 3 6.480 0.062 4 2009 4 6.494 0.045 5 2009 5 6.547 0.066 3 2009 6 6.569 0.057 3 2009 7 6.536 0.056 3 2009 8 6.597 0.051 5 2009 9 6.642 0.040 3 2009 10 6.600 0.069 1 2009 11 6.649 0.056 4 2009 12 6.667 0.056 4 2010 1 6.678 0.048 4 2010 2 6.682 0.068 2 2010 3 6.700 0.027 3 2010 4 6.791 0.064 2 2010 5 6.780 0.053 3 2010 6 6.793 0.062 4 2010 7 6.867 0.060 3 2010 8 6.880 0.041 6 2010 9 6.912 0.040 4 2010 10 6.890 0.064 2 2010 11 6.915 0.046 3 2010 12 6.955 0.055 3 2011 1 6.958 0.068 3 2011 2 6.984 0.052 3 2011 3 7.006 0.051 4 2011 4 7.070 0.075 2 2011 5 7.065 0.045 4 2011 6 7.129 0.058 4 2011 7 7.146 0.048 3 2011 8 7.171 0.057 2 2011 9 7.191 0.065 3 2011 10 7.170 0.038 2 2011 11 7.214 0.064 4 2011 12 7.280 0.043 2 2012 1 7.255 0.054 2 2012 2 7.270 0.063 2 2012 3 7.336 0.058 3 2012 4 7.338 0.055 2 2012 5 7.383 0.057 2 2012 6 7.413 0.045 4 2012 7 7.386 0.054 3 2012 8 7.443 0.058 5 2012 9 7.463 0.044 4 2012 10 nan nan 0 2012 11 7.498 0.045 2 2012 12 7.528 0.076 3 2013 1 7.556 0.057 2 2013 2 7.546 0.074 4 2013 3 7.592 0.044 3 2013 4 7.622 0.064 2 2013 5 7.660 0.099 1 2013 6 nan nan 0 2013 7 nan nan 0 2013 8 7.696 0.082 2 2013 9 7.690 0.737 1 2013 10 7.761 0.070 2 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 nan nan 0 2014 7 nan nan 0 2014 8 nan nan 0 2014 9 nan nan 0 2014 10 nan nan 0 2014 11 nan nan 0 2014 12 nan nan 0 2015 1 nan nan 0 2015 2 nan nan 0 2015 3 nan nan 0 2015 4 nan nan 0 2015 5 nan nan 0 2015 6 nan nan 0 2015 7 nan nan 0 2015 8 nan nan 0 2015 9 nan nan 0 2015 10 nan nan 0 2015 11 nan nan 0 2015 12 nan nan 0 2016 1 nan nan 0 2016 2 nan nan 0 2016 3 nan nan 0 2016 4 nan nan 0 2016 5 nan nan 0 2016 6 nan nan 0 2016 7 nan nan 0 2016 8 nan nan 0 2016 9 nan nan 0 2016 10 nan nan 0 2016 11 nan nan 0 2016 12 nan nan 0