# file: spo_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: SPO -- South Pole, Antarctica -- 89.98 S, 24.80 W, 2810 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 "spo_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 # F113ottoSPOyr F113ottoSPOmon F113ottoSPOm F113ottoSPOsd F113ottoSPOn 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 84.910 0.246 1 1995 11 85.330 0.339 1 1995 12 nan nan 0 1996 1 nan nan 0 1996 2 84.660 0.265 1 1996 3 nan nan 0 1996 4 nan nan 0 1996 5 nan nan 0 1996 6 84.700 0.235 1 1996 7 84.870 0.956 1 1996 8 85.620 0.267 1 1996 9 84.970 0.262 1 1996 10 85.030 0.255 1 1996 11 85.091 0.304 2 1996 12 85.180 0.653 1 1997 1 85.530 0.297 2 1997 2 nan nan 0 1997 3 85.070 0.149 1 1997 4 85.140 0.219 1 1997 5 85.060 0.209 1 1997 6 84.890 0.157 1 1997 7 nan nan 0 1997 8 nan nan 0 1997 9 84.820 0.459 1 1997 10 85.140 0.161 1 1997 11 nan nan 0 1997 12 85.390 0.199 1 1998 1 nan nan 0 1998 2 85.050 0.189 2 1998 3 84.774 0.233 2 1998 4 nan nan 0 1998 5 84.410 0.364 1 1998 6 84.579 0.353 2 1998 7 84.810 0.262 1 1998 8 nan nan 0 1998 9 84.720 0.300 1 1998 10 84.913 0.308 2 1998 11 nan nan 0 1998 12 84.820 0.302 1 1999 1 84.680 0.352 1 1999 2 84.864 0.276 2 1999 3 84.890 0.157 2 1999 4 84.720 0.108 1 1999 5 84.370 0.270 1 1999 6 84.725 0.544 2 1999 7 84.180 0.393 1 1999 8 84.170 0.217 1 1999 9 84.340 0.302 1 1999 10 84.240 0.138 1 1999 11 84.206 0.353 2 1999 12 84.026 0.398 2 2000 1 84.392 0.242 2 2000 2 84.067 0.176 2 2000 3 nan nan 0 2000 4 nan nan 0 2000 5 83.740 0.198 1 2000 6 83.830 0.485 1 2000 7 83.820 0.249 1 2000 8 83.610 0.418 1 2000 9 83.970 0.343 1 2000 10 83.720 0.162 1 2000 11 83.789 0.279 2 2000 12 83.693 0.166 2 2001 1 83.740 0.209 2 2001 2 83.373 0.250 3 2001 3 83.286 0.214 2 2001 4 nan nan 0 2001 5 82.967 0.325 2 2001 6 83.086 0.207 2 2001 7 82.820 0.180 2 2001 8 83.034 0.199 2 2001 9 83.011 0.396 2 2001 10 83.106 0.304 2 2001 11 83.182 0.177 2 2001 12 82.730 0.231 1 2002 1 82.984 0.216 2 2002 2 83.049 0.169 2 2002 3 82.744 0.212 2 2002 4 82.625 0.535 3 2002 5 82.433 0.337 2 2002 6 81.992 0.332 2 2002 7 82.091 0.212 2 2002 8 82.250 0.223 1 2002 9 82.110 0.213 1 2002 10 82.247 0.207 2 2002 11 82.300 0.189 1 2002 12 82.480 0.257 2 2003 1 82.071 0.277 2 2003 2 81.698 0.442 3 2003 3 81.951 0.312 3 2003 4 81.538 0.346 2 2003 5 81.650 0.188 3 2003 6 81.574 0.225 2 2003 7 81.706 0.157 3 2003 8 81.743 0.203 3 2003 9 81.359 0.353 2 2003 10 81.700 0.643 2 2003 11 81.910 0.204 1 2003 12 81.940 0.189 3 2004 1 81.498 0.219 3 2004 2 81.567 0.229 3 2004 3 81.465 0.186 3 2004 4 81.332 0.622 2 2004 5 81.123 0.245 3 2004 6 81.119 0.175 2 2004 7 80.479 0.282 2 2004 8 80.581 0.310 3 2004 9 80.760 0.608 2 2004 10 80.967 0.192 3 2004 11 81.335 0.247 3 2004 12 80.731 0.126 3 2005 1 80.908 0.304 2 2005 2 80.390 0.394 1 2005 3 80.218 0.307 3 2005 4 80.472 0.274 2 2005 5 80.136 0.234 3 2005 6 79.751 0.271 2 2005 7 80.227 0.262 2 2005 8 80.057 0.265 2 2005 9 80.185 0.309 2 2005 10 79.987 0.679 2 2005 11 80.295 0.290 2 2005 12 80.185 0.303 2 2006 1 80.133 0.152 5 2006 2 79.980 0.170 3 2006 3 80.021 0.153 3 2006 4 79.593 0.445 3 2006 5 79.850 0.195 3 2006 6 79.817 0.169 2 2006 7 79.510 0.311 3 2006 8 79.857 0.390 3 2006 9 79.693 0.194 3 2006 10 79.731 0.244 3 2006 11 79.656 0.236 3 2006 12 79.512 0.371 3 2007 1 79.483 0.210 2 2007 2 79.239 0.502 2 2007 3 79.120 0.194 3 2007 4 78.754 0.212 3 2007 5 78.662 0.177 2 2007 6 78.688 0.277 4 2007 7 78.720 0.248 1 2007 8 78.766 0.195 3 2007 9 79.080 0.238 1 2007 10 78.648 0.233 3 2007 11 78.760 0.202 3 2007 12 78.469 0.348 2 2008 1 78.559 0.174 3 2008 2 78.527 0.184 3 2008 3 78.225 0.516 2 2008 4 78.239 0.181 3 2008 5 78.118 0.248 3 2008 6 77.898 0.208 4 2008 7 78.094 0.225 2 2008 8 78.119 0.257 3 2008 9 78.171 0.190 3 2008 10 78.099 0.195 4 2008 11 77.934 0.242 3 2008 12 77.959 0.203 4 2009 1 77.722 0.174 4 2009 2 77.755 0.217 4 2009 3 77.697 0.266 2 2009 4 77.390 0.187 4 2009 5 77.715 0.193 2 2009 6 77.249 0.293 3 2009 7 77.299 0.270 3 2009 8 77.524 0.204 4 2009 9 77.450 0.185 1 2009 10 77.141 0.261 3 2009 11 77.295 0.140 3 2009 12 77.286 0.105 3 2010 1 77.149 0.166 2 2010 2 77.143 0.188 2 2010 3 77.156 0.214 2 2010 4 76.934 0.212 3 2010 5 76.855 0.212 3 2010 6 77.042 0.275 2 2010 7 76.979 0.419 3 2010 8 76.826 0.325 2 2010 9 76.605 0.143 2 2010 10 76.858 0.153 3 2010 11 76.763 0.168 3 2010 12 76.633 0.189 3 2011 1 76.434 0.195 2 2011 2 76.324 0.207 3 2011 3 76.180 0.219 2 2011 4 75.910 0.222 1 2011 5 76.260 0.275 1 2011 6 75.700 0.249 1 2011 7 76.010 0.269 1 2011 8 75.911 0.229 2 2011 9 75.817 0.227 2 2011 10 75.697 0.237 2 2011 11 75.715 0.174 2 2011 12 75.664 0.216 2 2012 1 75.760 0.279 3 2012 2 75.889 0.264 2 2012 3 75.418 0.431 2 2012 4 75.537 0.220 4 2012 5 75.191 0.311 2 2012 6 75.093 0.218 3 2012 7 75.150 0.236 3 2012 8 75.350 0.178 1 2012 9 75.250 0.285 1 2012 10 75.420 0.285 2 2012 11 75.244 0.288 2 2012 12 75.440 0.238 1 2013 1 75.090 0.263 1 2013 2 75.230 0.401 1 2013 3 74.470 0.551 1 2013 4 74.400 0.665 1 2013 5 74.749 0.312 2 2013 6 74.640 0.264 1 2013 7 74.650 0.425 1 2013 8 74.580 0.286 1 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 74.501 0.481 2 2014 3 74.260 0.267 3 2014 4 74.250 0.228 4 2014 5 73.941 0.288 3 2014 6 73.869 0.312 4 2014 7 74.230 0.265 1 2014 8 74.004 0.241 4 2014 9 74.087 0.334 3 2014 10 74.062 0.231 4 2014 11 73.974 0.274 2 2014 12 74.005 0.242 3 2015 1 74.210 0.480 1 2015 2 73.696 0.226 4 2015 3 73.482 0.214 3 2015 4 73.385 0.233 3 2015 5 73.499 0.324 2 2015 6 73.218 0.271 4 2015 7 73.432 0.219 2 2015 8 73.180 0.235 3 2015 9 73.298 0.285 3 2015 10 73.527 0.286 3 2015 11 73.511 0.288 2 2015 12 73.319 0.431 3 2016 1 73.490 0.339 2 2016 2 73.106 0.347 4 2016 3 72.318 0.258 2 2016 4 72.350 0.190 4 2016 5 72.403 0.233 2 2016 6 nan nan 0 2016 7 nan nan 0 2016 8 72.415 0.258 2 2016 9 72.430 0.216 1 2016 10 72.493 0.188 2 2016 11 72.693 0.254 3 2016 12 72.209 0.245 3 2017 1 nan nan 0 2017 2 72.116 0.203 4 2017 3 72.332 0.241 3 2017 4 72.484 0.270 3 2017 5 72.222 0.363 3 2017 6 72.405 0.231 2 2017 7 72.120 0.348 3 2017 8 72.237 0.313 4 2017 9 72.355 0.438 2 2017 10 72.208 0.298 4 2017 11 72.275 0.222 3 2017 12 72.199 0.249 3 2018 1 72.062 0.309 3 2018 2 71.815 0.509 6 2018 3 71.468 0.353 3 2018 4 71.653 0.246 4 2018 5 71.343 0.400 3 2018 6 71.432 0.224 4 2018 7 71.367 0.267 3 2018 8 71.322 0.258 4 2018 9 71.580 0.254 3 2018 10 71.489 0.210 4 2018 11 71.551 0.228 3 2018 12 71.436 0.335 4 2019 1 71.315 0.242 3 2019 2 71.447 0.240 2 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