# file: kum_F11_MM.dat # # Atmospheric measurements of CCl3F (CFC-11, Chlorofluorocarbon-11, F11) # # Measurements are from the NOAA/ESRL/GMD/HATS flask program # (http://www.esrl.noaa.gov/gmd/hats/flask/flasks.html). # Instrument ID: Otto # # Location: KUM -- Cape Kumukahi, Hawaii -- 19.52 N, 154.82 W, 3 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 "kum_F11_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-11 # data from the NOAA/ESRL halocarbons flask program. # # Calibration scale: NOAA 2016 # 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 F11 in ppt # sd Standard deviation of the mean (or single-sample precision value) # n Number of samples # F11ottoKUMyr F11ottoKUMmon F11ottoKUMm F11ottoKUMsd F11ottoKUMn 1996 1 266.355 0.567 2 1996 2 267.150 0.263 1 1996 3 267.468 0.453 2 1996 4 267.360 0.524 2 1996 5 267.145 0.506 3 1996 6 266.592 0.350 3 1996 7 266.494 0.311 4 1996 8 266.066 0.535 3 1996 9 266.480 0.698 4 1996 10 265.992 0.397 2 1996 11 266.081 0.489 2 1996 12 266.379 0.426 3 1997 1 265.564 0.976 2 1997 2 266.393 0.657 3 1997 3 265.425 0.613 2 1997 4 265.742 0.365 3 1997 5 265.367 0.503 2 1997 6 265.097 0.417 2 1997 7 264.521 0.570 3 1997 8 264.650 0.276 1 1997 9 264.620 0.339 2 1997 10 265.301 0.519 3 1997 11 264.795 0.489 2 1997 12 265.175 0.488 2 1998 1 264.922 0.389 3 1998 2 265.186 0.377 3 1998 3 264.486 0.460 3 1998 4 263.578 0.296 2 1998 5 263.379 0.594 4 1998 6 263.511 0.750 2 1998 7 262.802 0.255 4 1998 8 263.348 0.436 5 1998 9 263.119 0.509 2 1998 10 263.729 0.481 2 1998 11 263.511 0.415 3 1998 12 263.400 0.679 1 1999 1 263.620 0.735 2 1999 2 262.764 0.503 2 1999 3 262.779 0.508 3 1999 4 262.400 0.582 1 1999 5 261.962 0.311 2 1999 6 262.043 0.543 4 1999 7 261.044 0.323 3 1999 8 261.164 0.254 4 1999 9 261.702 0.272 2 1999 10 261.806 0.284 4 1999 11 262.119 0.296 5 1999 12 261.704 0.466 3 2000 1 261.782 0.317 4 2000 2 261.490 0.305 5 2000 3 261.164 0.675 2 2000 4 260.584 0.683 4 2000 5 260.752 0.590 2 2000 6 260.114 0.516 4 2000 7 259.876 0.959 3 2000 8 259.805 0.279 4 2000 9 259.919 0.269 2 2000 10 260.222 0.355 3 2000 11 260.216 0.292 4 2000 12 260.126 0.340 3 2001 1 260.109 0.346 4 2001 2 259.832 0.465 4 2001 3 259.493 0.728 2 2001 4 259.105 0.248 5 2001 5 259.130 0.504 1 2001 6 258.670 0.446 5 2001 7 258.347 0.338 4 2001 8 257.924 0.372 2 2001 9 258.192 0.290 4 2001 10 258.330 0.316 5 2001 11 258.261 0.344 4 2001 12 258.556 0.358 4 2002 1 257.919 0.311 4 2002 2 257.868 0.489 4 2002 3 257.799 0.195 4 2002 4 257.911 0.511 2 2002 5 257.125 0.478 3 2002 6 256.601 0.505 5 2002 7 256.079 0.312 2 2002 8 255.897 0.459 4 2002 9 256.362 0.469 5 2002 10 256.490 0.495 4 2002 11 256.320 0.555 4 2002 12 256.398 0.370 5 2003 1 255.473 0.355 4 2003 2 255.403 0.227 4 2003 3 254.914 0.501 5 2003 4 254.820 0.401 4 2003 5 254.317 0.245 4 2003 6 254.239 0.295 5 2003 7 253.911 0.267 4 2003 8 253.701 0.273 3 2003 9 253.639 0.245 5 2003 10 253.634 0.208 4 2003 11 253.543 0.297 2 2003 12 253.362 0.470 3 2004 1 253.223 0.373 3 2004 2 252.986 0.549 5 2004 3 252.511 0.331 4 2004 4 252.750 0.383 4 2004 5 252.643 0.470 4 2004 6 251.932 0.368 5 2004 7 251.664 0.317 4 2004 8 251.588 0.377 5 2004 9 251.632 0.316 4 2004 10 251.242 0.314 4 2004 11 251.068 0.335 5 2004 12 251.391 0.353 4 2005 1 251.132 0.393 4 2005 2 251.139 0.342 5 2005 3 250.813 0.247 4 2005 4 250.750 0.503 3 2005 5 250.407 0.389 5 2005 6 250.138 0.572 4 2005 7 249.548 0.373 4 2005 8 249.535 0.355 4 2005 9 249.566 0.350 4 2005 10 249.608 0.278 5 2005 11 249.595 0.432 3 2005 12 249.717 0.330 3 2006 1 249.323 0.304 5 2006 2 248.780 0.452 4 2006 3 248.744 0.330 4 2006 4 248.727 0.374 5 2006 5 248.479 0.388 4 2006 6 248.420 0.495 4 2006 7 247.780 0.300 5 2006 8 247.114 0.330 4 2006 9 247.254 0.376 4 2006 10 247.286 0.264 5 2006 11 247.275 0.329 4 2006 12 247.016 0.382 4 2007 1 247.076 0.331 4 2007 2 247.036 0.511 4 2007 3 246.577 0.386 4 2007 4 246.648 0.405 5 2007 5 245.992 0.359 4 2007 6 245.694 0.578 4 2007 7 245.216 0.425 4 2007 8 245.069 0.293 4 2007 9 244.924 0.274 4 2007 10 245.053 0.438 5 2007 11 244.931 0.461 4 2007 12 245.168 0.450 5 2008 1 245.004 0.374 4 2008 2 244.761 0.374 4 2008 3 244.403 0.462 5 2008 4 244.083 0.532 3 2008 5 243.453 0.420 4 2008 6 243.763 0.311 5 2008 7 243.153 0.552 4 2008 8 243.100 0.282 4 2008 9 243.066 0.233 5 2008 10 243.102 0.320 4 2008 11 243.367 0.299 3 2008 12 242.887 0.452 5 2009 1 242.655 0.384 4 2009 2 242.551 0.348 5 2009 3 242.389 0.276 3 2009 4 242.003 0.253 5 2009 5 241.912 0.420 3 2009 6 241.629 0.275 5 2009 7 241.324 0.281 4 2009 8 241.025 0.263 5 2009 9 241.248 0.293 4 2009 10 241.602 0.293 4 2009 11 241.711 0.466 4 2009 12 241.268 0.269 4 2010 1 241.242 0.328 3 2010 2 240.939 0.323 4 2010 3 240.660 0.375 4 2010 4 240.288 0.453 4 2010 5 240.120 0.289 5 2010 6 239.666 0.258 4 2010 7 239.213 0.416 4 2010 8 239.303 0.282 5 2010 9 239.238 0.346 4 2010 10 239.533 0.373 4 2010 11 239.501 0.406 3 2010 12 239.093 0.461 4 2011 1 239.192 0.323 3 2011 2 238.794 0.331 4 2011 3 238.487 0.280 5 2011 4 238.349 0.383 4 2011 5 238.125 0.380 5 2011 6 237.913 0.329 4 2011 7 237.614 0.337 4 2011 8 237.415 0.302 5 2011 9 237.456 0.359 4 2011 10 237.311 0.348 4 2011 11 237.621 0.396 4 2011 12 237.439 0.334 4 2012 1 236.985 0.377 4 2012 2 237.058 0.448 5 2012 3 236.792 0.351 3 2012 4 236.153 0.305 5 2012 5 235.816 0.297 4 2012 6 235.745 0.297 4 2012 7 235.106 0.213 5 2012 8 235.475 0.332 4 2012 9 235.066 0.497 2 2012 10 235.440 0.298 4 2012 11 235.738 0.384 4 2012 12 235.556 0.412 4 2013 1 235.598 0.382 4 2013 2 235.508 0.577 2 2013 3 235.090 0.406 4 2013 4 234.457 0.374 4 2013 5 234.119 0.461 3 2013 6 234.575 0.460 2 2013 7 234.278 0.504 4 2013 8 233.703 0.322 2 2013 9 nan nan 0 2013 10 nan nan 0 2013 11 234.509 0.413 2 2013 12 234.250 0.480 5 2014 1 233.976 0.639 4 2014 2 233.088 0.326 4 2014 3 233.681 0.916 4 2014 4 233.778 0.808 4 2014 5 233.839 0.486 3 2014 6 233.801 0.480 4 2014 7 233.535 0.563 4 2014 8 233.690 0.700 3 2014 9 233.637 0.627 4 2014 10 233.795 0.371 4 2014 11 233.910 0.482 3 2014 12 233.627 0.414 5 2015 1 232.977 0.381 4 2015 2 232.625 0.354 4 2015 3 232.485 0.429 4 2015 4 232.267 0.398 4 2015 5 232.701 0.526 4 2015 6 232.381 0.365 5 2015 7 232.489 0.449 4 2015 8 231.734 0.531 3 2015 9 232.067 0.958 5 2015 10 232.438 0.424 3 2015 11 232.525 0.409 4 2015 12 231.967 0.426 4 2016 1 231.710 0.956 3 2016 2 232.007 0.834 2 2016 3 231.904 0.487 3 2016 4 231.026 0.936 4 2016 5 232.082 1.481 2 2016 6 231.724 0.711 3 2016 7 231.029 0.983 3 2016 8 230.541 0.648 5 2016 9 230.988 0.577 3 2016 10 230.369 0.436 2 2016 11 231.358 0.578 5 2016 12 230.965 0.639 4 2017 1 230.691 0.801 5 2017 2 230.220 0.580 4 2017 3 229.904 0.470 4 2017 4 230.745 0.698 3 2017 5 229.814 0.521 5 2017 6 230.458 0.539 4 2017 7 229.756 0.706 5 2017 8 229.429 0.373 4 2017 9 230.329 0.273 2 2017 10 229.749 0.381 4 2017 11 229.912 0.739 5 2017 12 229.580 0.817 4 2018 1 230.316 0.970 4 2018 2 229.275 0.745 5 2018 3 229.141 0.929 4 2018 4 229.360 0.813 4 2018 5 229.110 0.518 1 2018 6 229.630 0.423 1 2018 7 nan nan 0 2018 8 228.940 0.436 1 2018 9 228.026 0.374 3 2018 10 228.637 0.400 4 2018 11 229.042 0.511 3 2018 12 228.277 1.046 2 2019 1 227.450 1.007 1 2019 2 227.346 0.625 3 2019 3 227.929 0.616 4 2019 4 227.859 0.337 4 2019 5 227.754 0.655 3 2019 6 227.615 0.458 5 2019 7 227.582 0.580 3 2019 8 227.900 0.710 2 2019 9 nan nan 0 2019 10 nan nan 0 2019 11 nan nan 0 2019 12 nan nan 0