# file: nwr_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: NWR -- Niwot Ridge, Colorado -- 40.05 N, 105.58 W, 3523 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 "nwr_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 # F113ottoNWRyr F113ottoNWRmon F113ottoNWRm F113ottoNWRsd F113ottoNWRn 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 86.442 0.333 2 1995 11 86.410 0.258 1 1995 12 nan nan 0 1996 1 86.600 0.361 2 1996 2 86.123 0.608 2 1996 3 86.630 0.220 1 1996 4 86.349 0.209 5 1996 5 86.579 0.200 4 1996 6 86.551 0.211 4 1996 7 86.418 0.160 4 1996 8 86.359 0.295 2 1996 9 86.302 0.163 2 1996 10 86.372 0.340 4 1996 11 86.079 0.217 4 1996 12 86.051 0.203 3 1997 1 86.250 0.124 4 1997 2 85.995 0.291 4 1997 3 86.258 0.188 4 1997 4 86.114 0.270 3 1997 5 86.040 0.161 1 1997 6 86.174 0.330 4 1997 7 86.149 0.262 2 1997 8 86.143 0.353 2 1997 9 85.852 0.244 5 1997 10 85.773 0.234 3 1997 11 85.789 0.195 3 1997 12 86.049 0.279 4 1998 1 85.769 0.198 3 1998 2 85.755 0.290 4 1998 3 85.734 0.211 2 1998 4 85.579 0.180 3 1998 5 85.757 0.431 2 1998 6 85.696 0.580 2 1998 7 85.776 0.306 3 1998 8 85.343 0.240 2 1998 9 85.332 0.252 4 1998 10 85.261 0.198 3 1998 11 85.187 0.222 4 1998 12 84.961 0.195 4 1999 1 84.992 0.580 2 1999 2 85.146 0.282 5 1999 3 84.880 0.267 1 1999 4 85.001 0.320 2 1999 5 84.933 0.194 4 1999 6 84.750 0.181 4 1999 7 84.566 0.228 3 1999 8 84.891 0.196 3 1999 9 84.935 0.346 2 1999 10 84.632 0.177 3 1999 11 84.676 0.231 5 1999 12 84.709 0.559 2 2000 1 84.693 0.198 4 2000 2 84.323 0.339 4 2000 3 84.445 0.290 3 2000 4 84.678 0.274 3 2000 5 84.539 0.281 4 2000 6 84.485 0.244 3 2000 7 84.600 0.224 3 2000 8 84.175 0.304 2 2000 9 84.082 0.218 3 2000 10 84.010 0.213 2 2000 11 84.070 0.187 4 2000 12 83.925 0.304 4 2001 1 84.110 0.169 5 2001 2 83.941 0.236 3 2001 3 83.805 0.257 4 2001 4 84.067 0.246 3 2001 5 83.740 0.191 3 2001 6 83.460 0.387 3 2001 7 83.577 0.306 3 2001 8 83.509 0.342 3 2001 9 83.364 0.231 3 2001 10 83.389 0.130 4 2001 11 83.320 0.151 1 2001 12 83.194 0.162 3 2002 1 83.273 0.135 3 2002 2 83.030 0.219 2 2002 3 83.188 0.120 4 2002 4 83.025 0.325 2 2002 5 82.988 0.185 3 2002 6 82.737 0.194 3 2002 7 82.995 0.232 3 2002 8 82.462 0.502 2 2002 9 82.653 0.167 2 2002 10 82.675 0.184 2 2002 11 82.460 0.610 3 2002 12 82.433 0.196 2 2003 1 82.474 0.198 4 2003 2 82.320 0.229 1 2003 3 82.369 0.213 3 2003 4 82.155 0.177 2 2003 5 82.121 0.226 4 2003 6 82.210 0.218 1 2003 7 82.267 0.337 3 2003 8 81.480 0.220 1 2003 9 81.864 0.217 3 2003 10 81.704 0.307 4 2003 11 81.615 0.161 2 2003 12 81.683 0.160 5 2004 1 81.794 0.135 2 2004 2 81.816 0.307 3 2004 3 81.753 0.256 4 2004 4 81.529 0.187 3 2004 5 81.445 0.368 2 2004 6 81.475 0.242 2 2004 7 81.141 0.200 3 2004 8 81.080 0.196 2 2004 9 81.226 0.259 3 2004 10 81.154 0.533 4 2004 11 81.286 0.177 2 2004 12 81.122 0.429 4 2005 1 81.262 0.218 3 2005 2 80.620 0.156 3 2005 3 80.549 0.232 3 2005 4 80.458 0.226 3 2005 5 80.809 0.258 3 2005 6 nan nan 0 2005 7 80.928 0.267 4 2005 8 80.611 0.223 4 2005 9 80.420 0.273 1 2005 10 80.130 0.382 1 2005 11 80.108 0.375 4 2005 12 80.101 0.284 3 2006 1 80.552 0.312 3 2006 2 80.330 0.169 5 2006 3 80.623 0.248 2 2006 4 80.235 0.239 4 2006 5 80.103 0.318 3 2006 6 80.204 0.299 3 2006 7 79.965 0.235 5 2006 8 79.531 0.311 2 2006 9 79.456 0.288 4 2006 10 79.644 0.183 4 2006 11 79.454 0.302 4 2006 12 79.504 0.256 3 2007 1 79.644 0.190 4 2007 2 79.581 0.190 3 2007 3 79.518 0.189 2 2007 4 79.434 0.254 3 2007 5 79.121 0.207 4 2007 6 79.117 0.290 2 2007 7 79.191 0.236 3 2007 8 78.787 0.236 2 2007 9 78.783 0.186 2 2007 10 78.529 0.172 3 2007 11 78.895 0.282 4 2007 12 78.545 0.410 2 2008 1 78.767 0.368 3 2008 2 78.654 0.339 4 2008 3 78.793 0.192 3 2008 4 78.588 0.227 5 2008 5 78.435 0.366 2 2008 6 78.428 0.183 5 2008 7 78.338 0.353 2 2008 8 78.231 0.182 2 2008 9 78.207 0.175 4 2008 10 78.224 0.151 4 2008 11 78.136 0.220 4 2008 12 77.879 0.251 5 2009 1 77.923 0.225 4 2009 2 77.859 0.203 3 2009 3 78.018 0.166 4 2009 4 77.846 0.192 2 2009 5 77.750 0.180 2 2009 6 77.709 0.182 3 2009 7 77.602 0.157 4 2009 8 77.372 0.169 4 2009 9 77.436 0.213 4 2009 10 77.417 0.217 3 2009 11 77.382 0.181 5 2009 12 77.410 0.155 4 2010 1 77.289 0.162 4 2010 2 77.201 0.228 3 2010 3 76.985 0.298 4 2010 4 77.000 0.165 4 2010 5 76.950 0.171 2 2010 6 76.855 0.194 2 2010 7 76.862 0.195 3 2010 8 76.852 0.223 3 2010 9 76.828 0.194 4 2010 10 76.566 0.283 2 2010 11 76.489 0.164 4 2010 12 76.766 0.138 3 2011 1 76.428 0.188 4 2011 2 76.606 0.195 4 2011 3 76.426 0.177 4 2011 4 76.059 0.165 3 2011 5 76.203 0.227 3 2011 6 76.146 0.194 4 2011 7 76.029 0.203 2 2011 8 75.922 0.237 3 2011 9 76.127 0.226 3 2011 10 75.762 0.168 4 2011 11 75.802 0.179 3 2011 12 75.683 0.220 3 2012 1 75.680 0.238 3 2012 2 75.826 0.227 5 2012 3 75.592 0.177 2 2012 4 75.772 0.228 3 2012 5 75.548 0.204 3 2012 6 75.461 0.180 3 2012 7 75.318 0.179 4 2012 8 74.937 0.170 3 2012 9 74.950 0.340 1 2012 10 75.083 0.236 4 2012 11 75.256 0.248 4 2012 12 75.132 0.291 3 2013 1 75.183 0.211 3 2013 2 74.950 0.240 2 2013 3 75.245 0.499 3 2013 4 75.089 0.319 4 2013 5 75.003 0.530 2 2013 6 nan nan 0 2013 7 74.990 0.353 4 2013 8 74.760 0.464 1 2013 9 nan nan 0 2013 10 nan nan 0 2013 11 74.644 0.245 3 2013 12 74.408 0.197 5 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 74.411 0.180 3 2014 8 74.067 0.198 3 2014 9 74.042 0.252 5 2014 10 74.074 0.259 3 2014 11 73.530 0.197 1 2014 12 73.892 0.247 5 2015 1 74.025 0.269 4 2015 2 73.911 0.233 4 2015 3 73.856 0.269 2 2015 4 73.933 0.215 4 2015 5 73.960 0.207 1 2015 6 73.775 0.171 5 2015 7 73.635 0.203 3 2015 8 73.507 0.253 3 2015 9 73.435 0.193 3 2015 10 73.302 0.184 3 2015 11 73.429 0.187 3 2015 12 73.295 0.196 4 2016 1 73.510 0.422 4 2016 2 73.198 0.259 4 2016 3 73.483 0.272 2 2016 4 73.160 0.431 1 2016 5 73.036 0.349 3 2016 6 72.970 0.441 1 2016 7 72.990 0.360 1 2016 8 72.557 0.379 2 2016 9 73.333 0.266 3 2016 10 72.766 0.375 2 2016 11 72.822 0.257 3 2016 12 72.553 0.201 4 2017 1 72.429 0.300 3 2017 2 72.576 0.256 2 2017 3 72.980 0.311 1 2017 4 72.503 0.672 2 2017 5 72.611 0.345 3 2017 6 72.725 0.326 2 2017 7 72.480 0.227 1 2017 8 72.439 0.214 2 2017 9 72.105 0.319 3 2017 10 72.308 0.246 3 2017 11 72.001 0.224 3 2017 12 72.081 0.291 4 2018 1 72.002 0.281 4 2018 2 72.032 0.249 4 2018 3 71.991 0.258 2 2018 4 72.148 0.187 3 2018 5 72.480 0.289 1 2018 6 72.060 0.350 1 2018 7 nan nan 0 2018 8 71.797 0.601 2 2018 9 71.719 0.414 3 2018 10 71.810 0.484 1 2018 11 71.844 0.378 3 2018 12 71.346 0.254 3 2019 1 71.429 0.290 3 2019 2 71.478 0.352 3 2019 3 71.580 0.276 3 2019 4 71.684 0.341 2 2019 5 71.513 0.297 3 2019 6 71.618 0.268 2 2019 7 71.311 0.235 5 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