# file: lef_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: LEF -- Park Falls, Wisconsin -- 45.95 N, 90.27 W, 472 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 "lef_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 # F113ottoLEFyr F113ottoLEFmon F113ottoLEFm F113ottoLEFsd F113ottoLEFn 1996 1 nan nan 0 1996 2 nan nan 0 1996 3 nan nan 0 1996 4 nan nan 0 1996 5 nan nan 0 1996 6 nan nan 0 1996 7 nan nan 0 1996 8 nan nan 0 1996 9 nan nan 0 1996 10 86.490 0.313 1 1996 11 nan nan 0 1996 12 86.220 0.278 1 1997 1 nan nan 0 1997 2 86.160 0.160 1 1997 3 85.970 0.490 1 1997 4 nan nan 0 1997 5 86.410 0.190 1 1997 6 86.150 0.324 1 1997 7 85.560 0.197 1 1997 8 nan nan 0 1997 9 85.790 0.153 1 1997 10 nan nan 0 1997 11 85.510 0.276 1 1997 12 85.730 0.392 1 1998 1 85.450 0.238 1 1998 2 85.760 0.229 1 1998 3 nan nan 0 1998 4 85.720 0.371 1 1998 5 85.438 0.453 2 1998 6 85.237 0.283 2 1998 7 84.970 0.194 2 1998 8 84.912 0.288 2 1998 9 84.340 0.297 1 1998 10 84.840 0.263 1 1998 11 84.857 0.213 2 1998 12 85.070 0.250 1 1999 1 84.830 0.240 1 1999 2 85.176 0.397 3 1999 3 84.910 0.206 1 1999 4 85.010 0.175 1 1999 5 84.986 0.173 2 1999 6 84.745 0.276 4 1999 7 84.520 0.272 2 1999 8 84.580 0.415 1 1999 9 84.572 0.365 3 1999 10 84.680 0.140 2 1999 11 84.486 0.302 2 1999 12 84.394 0.227 2 2000 1 84.920 0.281 1 2000 2 84.657 0.459 3 2000 3 84.533 0.417 2 2000 4 84.537 0.221 3 2000 5 84.524 0.237 3 2000 6 84.450 0.282 1 2000 7 84.397 0.396 2 2000 8 83.894 0.252 3 2000 9 83.826 0.137 3 2000 10 83.790 0.232 1 2000 11 83.928 0.202 3 2000 12 83.837 0.326 2 2001 1 84.203 0.211 2 2001 2 83.759 0.182 3 2001 3 83.684 0.279 2 2001 4 83.778 0.157 3 2001 5 83.597 0.259 4 2001 6 83.528 0.232 3 2001 7 83.321 0.150 5 2001 8 83.075 0.167 3 2001 9 83.136 0.214 3 2001 10 82.945 0.170 4 2001 11 83.143 0.201 2 2001 12 83.048 0.290 2 2002 1 83.138 0.162 4 2002 2 82.966 0.261 3 2002 3 83.326 0.213 4 2002 4 83.117 0.219 2 2002 5 82.912 0.207 4 2002 6 82.678 0.287 4 2002 7 82.541 0.191 3 2002 8 82.541 0.220 3 2002 9 82.521 0.189 4 2002 10 82.501 0.163 4 2002 11 82.317 0.224 2 2002 12 82.297 0.177 3 2003 1 82.385 0.145 3 2003 2 82.493 0.226 2 2003 3 82.328 0.194 4 2003 4 82.353 0.220 4 2003 5 82.215 0.362 5 2003 6 82.021 0.238 4 2003 7 81.905 0.166 4 2003 8 81.902 0.320 4 2003 9 81.607 0.192 4 2003 10 81.594 0.211 3 2003 11 81.326 0.269 2 2003 12 81.508 0.230 2 2004 1 81.652 0.197 3 2004 2 81.569 0.167 2 2004 3 81.566 0.268 4 2004 4 81.531 0.136 3 2004 5 81.245 0.349 4 2004 6 81.134 0.261 4 2004 7 81.112 0.175 4 2004 8 80.905 0.197 3 2004 9 80.992 0.146 4 2004 10 80.771 0.461 4 2004 11 80.399 0.368 4 2004 12 80.929 0.180 5 2005 1 81.089 0.265 3 2005 2 80.959 0.207 5 2005 3 80.822 0.264 2 2005 4 80.425 0.486 4 2005 5 80.705 0.195 5 2005 6 80.772 0.346 3 2005 7 80.533 0.203 4 2005 8 80.404 0.150 5 2005 9 80.289 0.212 4 2005 10 79.889 0.495 4 2005 11 80.077 0.289 4 2005 12 80.295 0.303 2 2006 1 80.288 0.230 3 2006 2 80.428 0.154 4 2006 3 80.234 0.131 3 2006 4 79.922 0.198 3 2006 5 80.148 0.294 4 2006 6 79.767 0.173 4 2006 7 79.756 0.347 4 2006 8 79.400 0.208 5 2006 9 79.258 0.215 3 2006 10 79.354 0.188 4 2006 11 79.532 0.234 5 2006 12 79.411 0.236 3 2007 1 79.375 0.197 3 2007 2 79.443 0.164 4 2007 3 79.459 0.291 4 2007 4 79.265 0.285 3 2007 5 79.004 0.234 2 2007 6 79.171 0.194 4 2007 7 78.957 0.199 4 2007 8 78.603 0.161 4 2007 9 78.759 0.185 4 2007 10 78.472 0.192 4 2007 11 78.625 0.198 3 2007 12 78.400 0.218 3 2008 1 78.273 0.621 2 2008 2 78.467 0.407 2 2008 3 78.598 0.179 4 2008 4 78.608 0.233 5 2008 5 78.150 0.619 1 2008 6 78.285 0.188 2 2008 7 78.323 0.155 3 2008 8 78.056 0.199 4 2008 9 77.850 0.202 2 2008 10 78.040 0.132 5 2008 11 77.963 0.153 4 2008 12 77.795 0.187 5 2009 1 77.845 0.224 2 2009 2 77.900 0.166 4 2009 3 77.844 0.177 4 2009 4 77.808 0.165 4 2009 5 77.914 0.231 2 2009 6 77.810 0.221 3 2009 7 77.537 0.174 3 2009 8 77.475 0.202 4 2009 9 77.313 0.255 4 2009 10 77.447 0.100 4 2009 11 77.224 0.162 3 2009 12 77.355 0.191 3 2010 1 77.173 0.268 3 2010 2 77.253 0.106 4 2010 3 77.079 0.172 3 2010 4 77.136 0.183 4 2010 5 77.025 0.203 4 2010 6 76.769 0.146 4 2010 7 76.539 0.205 3 2010 8 76.559 0.194 2 2010 9 76.652 0.168 3 2010 10 76.397 0.198 3 2010 11 76.510 0.149 3 2010 12 76.504 0.139 3 2011 1 76.506 0.167 4 2011 2 76.550 0.223 3 2011 3 76.387 0.192 4 2011 4 76.380 0.120 3 2011 5 76.082 0.202 4 2011 6 75.914 0.209 2 2011 7 75.895 0.207 3 2011 8 75.797 0.190 3 2011 9 75.961 0.211 3 2011 10 75.770 0.402 3 2011 11 75.639 0.226 3 2011 12 75.730 0.415 1 2012 1 75.611 0.353 2 2012 2 75.673 0.252 4 2012 3 75.585 0.195 4 2012 4 75.719 0.178 3 2012 5 75.419 0.482 3 2012 6 75.466 0.341 4 2012 7 75.241 0.193 3 2012 8 74.859 0.159 3 2012 9 74.887 0.168 3 2012 10 75.137 0.320 3 2012 11 75.070 0.269 1 2012 12 74.980 0.226 2 2013 1 74.869 0.233 2 2013 2 75.140 0.246 2 2013 3 75.152 0.264 3 2013 4 75.155 0.181 3 2013 5 74.734 0.289 3 2013 6 74.380 0.791 1 2013 7 74.612 0.256 3 2013 8 nan nan 0 2013 9 nan nan 0 2013 10 74.730 11.788 1 2013 11 nan nan 0 2013 12 74.465 0.247 2 2014 1 74.090 0.147 1 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 74.114 0.125 2 2014 8 74.486 0.318 4 2014 9 73.889 0.167 3 2014 10 73.980 0.182 4 2014 11 73.658 0.229 3 2014 12 73.985 0.246 2 2015 1 73.549 0.269 2 2015 2 73.970 0.269 2 2015 3 73.868 0.159 2 2015 4 73.963 0.234 3 2015 5 73.900 0.512 1 2015 6 73.597 0.171 5 2015 7 73.766 0.205 2 2015 8 73.398 0.174 4 2015 9 73.264 0.134 4 2015 10 73.076 0.255 2 2015 11 73.061 0.216 2 2015 12 73.000 0.485 1 2016 1 73.197 0.247 3 2016 2 nan nan 0 2016 3 73.149 0.378 2 2016 4 73.026 0.693 2 2016 5 73.534 0.329 4 2016 6 73.565 0.231 2 2016 7 73.500 0.261 1 2016 8 72.622 0.708 3 2016 9 73.009 0.363 3 2016 10 72.370 0.423 1 2016 11 72.837 0.564 5 2016 12 72.330 0.287 1 2017 1 72.542 0.375 2 2017 2 72.415 0.261 2 2017 3 72.767 0.234 2 2017 4 72.535 0.481 2 2017 5 72.689 0.318 5 2017 6 71.810 0.525 1 2017 7 72.110 0.366 3 2017 8 72.555 0.453 2 2017 9 72.317 0.672 2 2017 10 72.361 0.450 3 2017 11 72.743 0.585 3 2017 12 72.556 0.667 3 2018 1 72.110 0.788 3 2018 2 71.753 0.269 2 2018 3 72.140 0.261 1 2018 4 72.730 0.331 4 2018 5 nan nan 0 2018 6 72.241 0.502 2 2018 7 nan nan 0 2018 8 nan nan 0 2018 9 71.423 0.388 3 2018 10 71.807 0.431 2 2018 11 71.494 0.421 2 2018 12 71.260 0.263 2 2019 1 nan nan 0 2019 2 71.380 0.217 4 2019 3 71.606 0.686 2 2019 4 71.641 0.471 3 2019 5 72.023 0.271 2 2019 6 72.361 0.203 2 2019 7 71.627 0.246 4 2019 8 71.100 0.196 1 2019 9 nan nan 0 2019 10 nan nan 0 2019 11 nan nan 0 2019 12 nan nan 0