# file: psa_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: PSA -- Palmer Station, Antarctica -- 64.92 S, 64.00 W, 10 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 "psa_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 # SF6ottoPSAyr SF6ottoPSAmon SF6ottoPSAm SF6ottoPSAsd SF6ottoPSAn 2001 1 nan nan 0 2001 2 nan nan 0 2001 3 4.580 0.047 1 2001 4 4.590 0.085 1 2001 5 4.623 0.056 2 2001 6 4.602 0.075 2 2001 7 4.620 0.058 1 2001 8 4.654 0.080 2 2001 9 4.722 0.044 2 2001 10 4.767 0.050 2 2001 11 4.720 0.088 1 2001 12 4.742 0.058 2 2002 1 4.765 0.043 2 2002 2 4.830 0.058 1 2002 3 4.780 0.073 1 2002 4 4.796 0.063 2 2002 5 4.820 0.109 1 2002 6 4.859 0.054 2 2002 7 4.888 0.051 2 2002 8 4.812 0.084 2 2002 9 4.940 0.080 1 2002 10 4.940 0.089 1 2002 11 4.898 0.041 2 2002 12 4.900 0.031 1 2003 1 5.010 0.072 1 2003 2 nan nan 0 2003 3 5.022 0.071 2 2003 4 5.027 0.055 2 2003 5 5.036 0.075 2 2003 6 5.047 0.056 3 2003 7 5.080 0.057 1 2003 8 5.067 0.085 2 2003 9 5.100 0.065 2 2003 10 5.150 0.073 1 2003 11 5.133 0.071 2 2003 12 5.087 0.058 2 2004 1 5.171 0.057 3 2004 2 5.141 0.056 2 2004 3 5.235 0.060 2 2004 4 5.236 0.035 2 2004 5 5.200 0.120 2 2004 6 5.264 0.118 3 2004 7 5.301 0.058 4 2004 8 5.291 0.057 2 2004 9 5.355 0.068 2 2004 10 5.344 0.044 2 2004 11 5.342 0.057 2 2004 12 5.380 0.051 2 2005 1 5.427 0.036 2 2005 2 5.405 0.056 3 2005 3 5.466 0.055 2 2005 4 5.430 0.055 2 2005 5 5.489 0.071 2 2005 6 5.495 0.087 2 2005 7 5.523 0.052 2 2005 8 5.527 0.050 3 2005 9 5.548 0.057 2 2005 10 5.550 0.057 2 2005 11 5.550 0.068 1 2005 12 5.580 0.066 2 2006 1 5.600 0.055 2 2006 2 5.569 0.045 3 2006 3 5.633 0.056 2 2006 4 5.620 0.057 1 2006 5 5.695 0.034 2 2006 6 5.734 0.071 2 2006 7 5.765 0.041 3 2006 8 5.800 0.073 1 2006 9 5.770 0.045 1 2006 10 5.819 0.064 2 2006 11 5.790 0.066 1 2006 12 5.790 0.062 1 2007 1 5.836 0.060 2 2007 2 5.856 0.054 2 2007 3 5.884 0.080 2 2007 4 5.880 0.040 2 2007 5 5.981 0.053 3 2007 6 5.973 0.048 2 2007 7 6.050 0.069 1 2007 8 6.041 0.040 2 2007 9 6.027 0.106 2 2007 10 6.074 0.064 2 2007 11 6.095 0.041 2 2007 12 6.109 0.035 3 2008 1 6.198 0.060 2 2008 2 6.136 0.046 2 2008 3 6.139 0.059 2 2008 4 6.202 0.044 2 2008 5 6.221 0.061 2 2008 6 6.246 0.062 3 2008 7 6.297 0.046 2 2008 8 6.320 0.057 1 2008 9 6.351 0.054 2 2008 10 6.360 0.070 2 2008 11 6.386 0.054 2 2008 12 6.377 0.057 2 2009 1 6.480 0.067 1 2009 2 6.401 0.092 2 2009 3 nan nan 0 2009 4 6.500 0.061 2 2009 5 6.516 0.051 2 2009 6 6.514 0.062 2 2009 7 6.558 0.051 2 2009 8 6.553 0.092 2 2009 9 6.568 0.051 2 2009 10 6.580 0.056 2 2009 11 nan nan 0 2009 12 6.684 0.077 2 2010 1 6.700 0.064 1 2010 2 6.700 0.089 1 2010 3 6.770 0.045 1 2010 4 6.772 0.057 2 2010 5 6.771 0.029 3 2010 6 6.824 0.076 2 2010 7 6.837 0.041 2 2010 8 6.830 0.066 1 2010 9 6.909 0.052 2 2010 10 6.900 0.069 1 2010 11 6.928 0.061 3 2010 12 7.008 0.059 2 2011 1 6.927 0.041 2 2011 2 6.974 0.058 2 2011 3 7.025 0.074 2 2011 4 7.061 0.056 3 2011 5 7.141 0.057 2 2011 6 7.130 0.089 2 2011 7 7.250 0.091 1 2011 8 7.122 0.082 2 2011 9 7.196 0.060 2 2011 10 7.210 0.057 2 2011 11 7.210 0.057 2 2011 12 7.206 0.043 3 2012 1 7.221 0.043 2 2012 2 7.231 0.068 2 2012 3 7.260 0.069 2 2012 4 7.291 0.053 3 2012 5 7.310 0.036 1 2012 6 7.374 0.039 2 2012 7 7.370 0.074 1 2012 8 7.383 0.064 2 2012 9 7.388 0.050 2 2012 10 7.452 0.049 2 2012 11 7.439 0.075 2 2012 12 7.610 0.070 1 2013 1 7.580 0.053 1 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 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