# file: psa_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: 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_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 # F113ottoPSAyr F113ottoPSAmon F113ottoPSAm F113ottoPSAsd F113ottoPSAn 2001 1 nan nan 0 2001 2 nan nan 0 2001 3 83.030 0.304 1 2001 4 83.050 0.245 1 2001 5 82.890 0.188 1 2001 6 83.025 0.195 2 2001 7 82.950 0.255 1 2001 8 82.810 0.300 1 2001 9 82.770 0.202 1 2001 10 82.700 0.149 1 2001 11 nan nan 0 2001 12 nan nan 0 2002 1 nan nan 0 2002 2 nan nan 0 2002 3 nan nan 0 2002 4 nan nan 0 2002 5 82.660 0.318 1 2002 6 82.300 0.281 1 2002 7 nan nan 0 2002 8 nan nan 0 2002 9 nan nan 0 2002 10 nan nan 0 2002 11 82.050 0.402 1 2002 12 82.230 0.318 1 2003 1 82.160 0.286 1 2003 2 nan nan 0 2003 3 nan nan 0 2003 4 nan nan 0 2003 5 nan nan 0 2003 6 nan nan 0 2003 7 nan nan 0 2003 8 nan nan 0 2003 9 81.749 0.230 2 2003 10 81.590 0.203 1 2003 11 81.580 0.396 1 2003 12 81.741 0.139 2 2004 1 nan nan 0 2004 2 nan nan 0 2004 3 nan nan 0 2004 4 80.675 0.217 2 2004 5 80.787 0.256 2 2004 6 81.072 0.329 3 2004 7 80.732 0.181 4 2004 8 81.154 0.417 2 2004 9 81.410 0.275 1 2004 10 81.106 0.170 2 2004 11 81.095 0.346 2 2004 12 80.829 0.361 2 2005 1 80.714 0.205 2 2005 2 nan nan 0 2005 3 nan nan 0 2005 4 nan nan 0 2005 5 79.790 0.367 1 2005 6 80.225 0.201 2 2005 7 79.845 0.367 2 2005 8 80.106 0.186 3 2005 9 80.017 0.211 2 2005 10 80.170 0.225 1 2005 11 80.161 0.276 2 2005 12 nan nan 0 2006 1 nan nan 0 2006 2 80.384 0.425 2 2006 3 79.470 0.490 1 2006 4 79.610 0.282 1 2006 5 79.585 0.275 2 2006 6 79.350 0.239 2 2006 7 79.385 0.200 3 2006 8 79.330 0.380 1 2006 9 79.610 0.179 1 2006 10 79.570 0.182 1 2006 11 nan nan 0 2006 12 nan nan 0 2007 1 79.632 0.217 2 2007 2 79.010 0.303 1 2007 3 78.810 0.200 2 2007 4 78.600 0.646 1 2007 5 78.407 0.238 3 2007 6 78.381 0.226 2 2007 7 78.510 0.186 1 2007 8 78.448 0.269 2 2007 9 nan nan 0 2007 10 78.670 0.326 1 2007 11 78.940 0.434 1 2007 12 78.940 0.224 1 2008 1 78.450 0.229 1 2008 2 nan nan 0 2008 3 78.045 0.665 2 2008 4 77.680 0.185 1 2008 5 77.804 0.189 2 2008 6 77.772 0.164 3 2008 7 77.700 0.166 1 2008 8 nan nan 0 2008 9 nan nan 0 2008 10 nan nan 0 2008 11 nan nan 0 2008 12 77.610 0.290 1 2009 1 77.510 0.227 1 2009 2 77.420 0.285 1 2009 3 nan nan 0 2009 4 77.244 0.177 2 2009 5 77.290 0.199 2 2009 6 77.001 0.202 2 2009 7 77.064 0.142 2 2009 8 77.687 0.199 2 2009 9 77.545 0.192 2 2009 10 nan nan 0 2009 11 nan nan 0 2009 12 77.160 0.156 1 2010 1 77.080 0.213 1 2010 2 76.890 0.254 1 2010 3 77.220 0.157 1 2010 4 77.059 0.201 2 2010 5 76.710 0.226 2 2010 6 76.759 0.318 2 2010 7 76.471 0.164 2 2010 8 nan nan 0 2010 9 76.552 0.168 2 2010 10 76.280 0.203 1 2010 11 76.355 0.218 3 2010 12 76.379 0.177 2 2011 1 76.222 0.247 2 2011 2 76.080 0.241 1 2011 3 75.971 0.227 2 2011 4 75.841 0.198 3 2011 5 75.670 0.196 1 2011 6 75.334 0.177 2 2011 7 nan nan 0 2011 8 75.530 0.176 2 2011 9 75.708 0.182 2 2011 10 75.637 0.184 2 2011 11 75.660 0.295 2 2011 12 75.403 0.140 3 2012 1 nan nan 0 2012 2 75.610 0.155 1 2012 3 74.964 0.208 2 2012 4 75.227 0.195 3 2012 5 nan nan 0 2012 6 nan nan 0 2012 7 nan nan 0 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 73.890 0.255 1 2014 4 73.775 0.166 2 2014 5 73.650 0.321 2 2014 6 73.665 0.166 2 2014 7 73.488 0.221 2 2014 8 73.830 0.211 1 2014 9 73.651 0.156 2 2014 10 73.665 0.315 2 2014 11 nan nan 0 2014 12 nan nan 0 2015 1 nan nan 0 2015 2 73.660 0.318 1 2015 3 nan nan 0 2015 4 73.420 0.260 3 2015 5 nan nan 0 2015 6 72.967 0.290 2 2015 7 72.790 0.359 2 2015 8 73.161 0.375 2 2015 9 73.178 0.156 2 2015 10 nan nan 0 2015 11 73.801 0.729 2 2015 12 nan nan 0 2016 1 73.067 0.428 3 2016 2 72.960 0.263 1 2016 3 72.370 0.603 2 2016 4 72.380 0.383 1 2016 5 72.225 0.235 2 2016 6 72.150 0.210 1 2016 7 72.340 0.416 1 2016 8 72.002 0.185 2 2016 9 nan nan 0 2016 10 72.116 0.170 2 2016 11 72.160 0.285 2 2016 12 72.206 0.224 2 2017 1 72.250 0.190 2 2017 2 72.130 0.305 1 2017 3 72.190 0.314 1 2017 4 72.300 0.324 1 2017 5 71.955 0.530 2 2017 6 71.727 0.488 2 2017 7 71.960 0.296 2 2017 8 71.936 0.239 2 2017 9 72.059 0.132 2 2017 10 72.227 0.171 2 2017 11 72.133 0.271 2 2017 12 72.135 0.180 2 2018 1 71.930 0.263 2 2018 2 71.760 0.201 1 2018 3 nan nan 0 2018 4 nan nan 0 2018 5 nan nan 0 2018 6 71.290 0.227 1 2018 7 71.450 0.240 1 2018 8 71.200 0.230 1 2018 9 71.690 0.217 1 2018 10 71.401 0.199 2 2018 11 71.702 0.336 2 2018 12 71.277 0.325 2 2019 1 71.708 0.176 2 2019 2 71.490 0.265 1 2019 3 nan nan 0 2019 4 nan nan 0 2019 5 nan nan 0 2019 6 nan nan 0 2019 7 nan nan 0 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