# file: global_SF6_MM.dat # # Atmospheric measurements of SF6 (Sulphur Hexaflouride) # # Measurements are from the NOAA/ESRL/GMD/HATS flask program # (http://www.esrl.noaa.gov/gmd/hats/flask/flasks.html). # Instrument ID: Otto # # Location: Global -- Monthly Global-Hemispheric Means # 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 global and hemispheric mean estimates computed # using data from the monthly companion files named *_SF6_MM.dat, where * # refers to a 3-character baseline site code. For any given month in the more # recent period, data from as many as 12 sites may be used to derive the global # mean, including as many as 4 sites in the southern hemisphere and up to 8 in # the northern hemisphere. From north to south, these baseline sites include # ALT, SUM, BRW, MHD, THD, NWR, MLO, KUM, SMO, CGO, PSA, and SPO: # # ALT - Alert, Canada 82.45 N 62.51 W 190 m # SUM - Summit, Greenland 72.60 N 38.42 W 3209 m # BRW - Barrow, Alaska 71.32 N 156.61 W 11 m # MHD - Mace Head, Ireland 53.33 N 9.90 W 5 m # THD - Trinidad Head, California 41.05 N 124.15 W 107 m # NWR - Niwot Ridge, Colorado 40.05 N 105.59 W 3523 m # MLO - Mauna Loa, Hawaii 19.54 N 155.58 W 3397 m # KUM - Cape Kumukahi, Hawaii 19.52 N 154.82 W 3 m # SMO - Tutuila, Samoa 14.25 S 170.56 W 42 m # CGO - Cape Grim, Tasmania 40.68 S 144.69 E 94 m # PSA - Palmer Station, Antarctica 64.92 S 64.00 W 10 m # SPO - South Pole, Antarctica 89.98 S 24.80 W 2810 m # # The global and hemispheric uncertainties reported here are bootstrapped from # 1000 'resamples' of the input monthly means drawn in accordance with the # uncertainties reported in the companion files. # # 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: Sulphur Hexaflouride # data from the NOAA/ESRL halocarbons flask program. # # Calibration scale: NOAA 2014 # See http://www.esrl.noaa.gov/gmd/ccl/scales.html for more information about # calibration scales. # # Units: ppt # # Mising value: "nan" # # Data Columns: # yr Year # mon Month # NHm Northern Hemispheric mean concentration of SF6 in ppt # NHsd Northern Hemispheric standard deviation # SHm Southern Hemispheric mean concentration # SHsd Southern Hemispheric standard deviation # GLm Global mean concentration # GLsd Global standard deviation # SF6ottoyr SF6ottomon SF6ottoNHm SF6ottoNHsd SF6ottoSHm SF6ottoSHsd SF6ottoGLm SF6ottoGLsd 1995 1 3.533 0.029 3.207 0.125 3.370 0.064 1995 2 3.512 0.154 3.282 0.193 3.397 0.122 1995 3 3.558 0.159 3.244 0.120 3.401 0.100 1995 4 3.618 0.090 3.287 0.170 3.453 0.094 1995 5 3.626 0.133 3.308 0.139 3.467 0.099 1995 6 3.551 0.119 3.297 0.112 3.424 0.081 1995 7 3.677 0.093 3.262 0.124 3.470 0.078 1995 8 3.675 0.211 3.259 0.191 3.467 0.143 1995 9 3.626 0.063 3.346 0.064 3.486 0.043 1995 10 3.683 0.044 3.355 0.043 3.519 0.031 1995 11 3.704 0.039 3.454 0.090 3.579 0.049 1995 12 3.747 0.050 3.494 0.084 3.621 0.048 1996 1 3.740 0.040 3.495 0.097 3.617 0.052 1996 2 3.818 0.049 3.550 0.053 3.684 0.036 1996 3 3.862 0.044 3.478 0.061 3.670 0.038 1996 4 3.808 0.040 3.465 0.066 3.637 0.040 1996 5 3.805 0.040 3.546 0.061 3.675 0.036 1996 6 3.851 0.046 3.581 0.067 3.716 0.041 1996 7 3.846 0.046 3.544 0.061 3.695 0.039 1996 8 3.867 0.036 3.596 0.055 3.732 0.033 1996 9 3.854 0.049 3.572 0.055 3.713 0.036 1996 10 3.905 0.048 3.598 0.052 3.752 0.035 1996 11 3.896 0.054 3.630 0.060 3.763 0.039 1996 12 3.971 0.043 3.717 0.075 3.844 0.044 1997 1 3.987 0.056 3.748 0.060 3.867 0.041 1997 2 3.986 0.042 3.709 0.071 3.847 0.041 1997 3 4.009 0.038 3.727 0.053 3.868 0.033 1997 4 4.044 0.043 3.724 0.056 3.884 0.035 1997 5 4.115 0.050 3.717 0.084 3.916 0.050 1997 6 4.060 0.046 3.776 0.081 3.918 0.047 1997 7 4.071 0.047 3.814 0.065 3.943 0.040 1997 8 4.137 0.060 3.810 0.033 3.973 0.035 1997 9 4.117 0.021 3.814 0.051 3.965 0.028 1997 10 4.137 0.037 3.866 0.048 4.002 0.031 1997 11 4.166 0.034 3.860 0.042 4.013 0.028 1997 12 4.205 0.034 3.893 0.035 4.049 0.024 1998 1 4.204 0.033 3.910 0.044 4.057 0.027 1998 2 4.204 0.039 3.894 0.051 4.049 0.032 1998 3 4.208 0.033 3.934 0.043 4.071 0.026 1998 4 4.255 0.033 3.920 0.046 4.087 0.029 1998 5 4.288 0.033 3.997 0.043 4.142 0.026 1998 6 4.287 0.038 4.035 0.037 4.161 0.027 1998 7 4.249 0.026 4.010 0.048 4.130 0.027 1998 8 4.293 0.034 4.038 0.046 4.165 0.029 1998 9 4.332 0.040 4.096 0.037 4.214 0.028 1998 10 4.350 0.025 4.116 0.034 4.233 0.021 1998 11 4.375 0.031 4.133 0.045 4.254 0.027 1998 12 4.380 0.035 4.149 0.050 4.264 0.030 1999 1 4.395 0.032 4.164 0.049 4.279 0.029 1999 2 4.396 0.035 4.201 0.037 4.298 0.025 1999 3 4.413 0.035 4.212 0.040 4.312 0.026 1999 4 4.419 0.041 4.226 0.059 4.322 0.036 1999 5 4.459 0.030 4.240 0.047 4.349 0.028 1999 6 4.477 0.029 4.252 0.048 4.365 0.028 1999 7 4.467 0.039 4.249 0.037 4.358 0.027 1999 8 4.465 0.030 4.295 0.045 4.380 0.027 1999 9 4.526 0.041 4.278 0.044 4.402 0.030 1999 10 4.536 0.032 4.312 0.040 4.424 0.025 1999 11 4.559 0.030 4.338 0.042 4.449 0.026 1999 12 4.591 0.031 4.334 0.042 4.462 0.026 2000 1 4.605 0.030 4.378 0.052 4.492 0.030 2000 2 4.572 0.030 4.392 0.039 4.482 0.025 2000 3 4.625 0.028 4.385 0.035 4.505 0.022 2000 4 4.646 0.027 4.396 0.038 4.521 0.023 2000 5 4.649 0.029 4.388 0.040 4.519 0.025 2000 6 4.681 0.028 4.422 0.035 4.551 0.023 2000 7 4.672 0.030 4.454 0.033 4.563 0.022 2000 8 4.701 0.028 4.506 0.035 4.603 0.023 2000 9 4.739 0.029 4.504 0.037 4.621 0.024 2000 10 4.767 0.026 4.503 0.034 4.635 0.021 2000 11 4.769 0.031 4.542 0.034 4.655 0.023 2000 12 4.805 0.027 4.529 0.035 4.667 0.022 2001 1 4.818 0.027 4.577 0.043 4.697 0.025 2001 2 4.815 0.024 4.613 0.032 4.714 0.020 2001 3 4.855 0.025 4.622 0.034 4.738 0.020 2001 4 4.884 0.027 4.611 0.030 4.747 0.020 2001 5 4.898 0.034 4.642 0.031 4.770 0.023 2001 6 4.891 0.030 4.660 0.033 4.776 0.022 2001 7 4.900 0.024 4.644 0.037 4.772 0.022 2001 8 4.904 0.027 4.686 0.033 4.795 0.022 2001 9 4.923 0.027 4.694 0.030 4.809 0.020 2001 10 4.964 0.028 4.759 0.025 4.862 0.019 2001 11 4.972 0.026 4.765 0.033 4.869 0.021 2001 12 5.036 0.032 4.751 0.034 4.894 0.023 2002 1 4.998 0.029 4.781 0.027 4.890 0.019 2002 2 5.053 0.025 4.826 0.037 4.939 0.023 2002 3 5.061 0.028 4.822 0.033 4.942 0.022 2002 4 5.097 0.025 4.831 0.036 4.964 0.022 2002 5 5.118 0.025 4.833 0.033 4.975 0.021 2002 6 5.139 0.029 4.893 0.033 5.016 0.021 2002 7 5.110 0.026 4.914 0.032 5.012 0.021 2002 8 5.138 0.027 4.892 0.034 5.015 0.022 2002 9 5.155 0.021 4.930 0.037 5.042 0.021 2002 10 5.184 0.031 4.970 0.039 5.077 0.025 2002 11 5.236 0.037 4.953 0.031 5.095 0.024 2002 12 5.245 0.024 4.954 0.033 5.100 0.020 2003 1 5.251 0.025 5.009 0.026 5.130 0.018 2003 2 5.291 0.023 5.012 0.028 5.151 0.018 2003 3 5.325 0.030 5.038 0.031 5.181 0.021 2003 4 5.336 0.022 5.065 0.033 5.201 0.020 2003 5 5.353 0.025 5.067 0.027 5.210 0.018 2003 6 5.388 0.028 5.071 0.033 5.230 0.022 2003 7 5.360 0.025 5.099 0.026 5.230 0.018 2003 8 5.378 0.034 5.129 0.031 5.253 0.023 2003 9 5.381 0.029 5.132 0.029 5.257 0.020 2003 10 5.412 0.024 5.156 0.033 5.284 0.020 2003 11 5.448 0.023 5.169 0.035 5.309 0.021 2003 12 5.502 0.028 5.204 0.051 5.353 0.030 2004 1 5.479 0.030 5.236 0.039 5.357 0.025 2004 2 5.506 0.027 5.242 0.034 5.374 0.021 2004 3 5.509 0.023 5.259 0.036 5.384 0.021 2004 4 5.558 0.022 5.265 0.037 5.412 0.022 2004 5 5.561 0.029 5.277 0.038 5.419 0.025 2004 6 5.573 0.023 5.281 0.038 5.427 0.022 2004 7 5.576 0.025 5.320 0.040 5.448 0.024 2004 8 5.589 0.029 5.349 0.042 5.469 0.026 2004 9 5.586 0.025 5.372 0.048 5.479 0.027 2004 10 5.623 0.035 5.362 0.044 5.492 0.028 2004 11 5.692 0.031 5.396 0.030 5.544 0.021 2004 12 5.703 0.026 5.431 0.027 5.567 0.018 2005 1 5.680 0.025 5.450 0.028 5.565 0.018 2005 2 5.731 0.023 5.464 0.025 5.597 0.017 2005 3 5.749 0.021 5.483 0.036 5.616 0.021 2005 4 5.753 0.024 5.461 0.036 5.607 0.021 2005 5 5.759 0.027 5.493 0.032 5.626 0.021 2005 6 5.796 0.026 5.513 0.032 5.654 0.021 2005 7 5.800 0.027 5.526 0.032 5.663 0.021 2005 8 5.796 0.025 5.545 0.029 5.670 0.019 2005 9 5.824 0.021 5.582 0.032 5.703 0.020 2005 10 5.851 0.025 5.583 0.033 5.717 0.021 2005 11 5.873 0.024 5.611 0.033 5.742 0.020 2005 12 5.935 0.030 5.636 0.031 5.786 0.021 2006 1 5.939 0.029 5.665 0.034 5.802 0.022 2006 2 5.947 0.023 5.672 0.029 5.810 0.019 2006 3 5.964 0.025 5.682 0.040 5.823 0.024 2006 4 5.998 0.024 5.698 0.029 5.848 0.019 2006 5 6.041 0.024 5.721 0.034 5.881 0.020 2006 6 6.023 0.024 5.763 0.037 5.893 0.022 2006 7 6.045 0.025 5.774 0.033 5.909 0.021 2006 8 6.038 0.023 5.802 0.038 5.920 0.022 2006 9 6.064 0.024 5.796 0.031 5.930 0.019 2006 10 6.102 0.025 5.833 0.035 5.968 0.022 2006 11 6.118 0.025 5.847 0.034 5.982 0.021 2006 12 6.176 0.026 5.860 0.031 6.018 0.020 2007 1 6.176 0.023 5.888 0.032 6.032 0.020 2007 2 6.221 0.023 5.897 0.032 6.059 0.020 2007 3 6.205 0.025 5.952 0.044 6.079 0.025 2007 4 6.276 0.025 5.955 0.030 6.116 0.020 2007 5 6.300 0.026 5.995 0.033 6.147 0.022 2007 6 6.330 0.026 6.000 0.039 6.165 0.023 2007 7 6.330 0.022 6.045 0.027 6.187 0.018 2007 8 6.362 0.022 6.063 0.030 6.212 0.018 2007 9 6.359 0.020 6.105 0.031 6.232 0.018 2007 10 6.418 0.023 6.113 0.026 6.265 0.017 2007 11 6.434 0.029 6.157 0.028 6.295 0.020 2007 12 6.472 0.031 6.151 0.029 6.312 0.021 2008 1 6.477 0.028 6.213 0.030 6.345 0.020 2008 2 6.500 0.023 6.206 0.030 6.353 0.019 2008 3 6.537 0.027 6.232 0.025 6.385 0.019 2008 4 6.552 0.027 6.258 0.026 6.405 0.019 2008 5 6.598 0.027 6.291 0.036 6.444 0.023 2008 6 6.625 0.025 6.284 0.028 6.454 0.019 2008 7 6.629 0.024 6.311 0.032 6.470 0.021 2008 8 6.663 0.026 6.337 0.033 6.500 0.022 2008 9 6.671 0.022 6.351 0.033 6.511 0.020 2008 10 6.727 0.026 6.365 0.033 6.546 0.021 2008 11 6.756 0.025 6.400 0.034 6.578 0.021 2008 12 6.766 0.028 6.420 0.026 6.593 0.018 2009 1 6.788 0.032 6.491 0.030 6.640 0.021 2009 2 6.793 0.026 6.482 0.037 6.637 0.023 2009 3 6.800 0.022 6.537 0.035 6.668 0.020 2009 4 6.852 0.023 6.547 0.035 6.700 0.021 2009 5 6.858 0.029 6.566 0.036 6.712 0.023 2009 6 6.898 0.029 6.569 0.037 6.734 0.024 2009 7 6.917 0.024 6.570 0.032 6.743 0.020 2009 8 6.914 0.023 6.614 0.036 6.764 0.021 2009 9 6.952 0.025 6.639 0.025 6.796 0.018 2009 10 6.988 0.024 6.645 0.034 6.816 0.021 2009 11 7.003 0.022 6.681 0.032 6.842 0.020 2009 12 7.016 0.024 6.711 0.033 6.863 0.020 2010 1 7.038 0.022 6.741 0.039 6.889 0.023 2010 2 7.099 0.028 6.742 0.045 6.920 0.026 2010 3 7.131 0.023 6.783 0.027 6.957 0.018 2010 4 7.165 0.024 6.823 0.038 6.994 0.022 2010 5 7.180 0.023 6.827 0.035 7.003 0.021 2010 6 7.202 0.031 6.864 0.049 7.033 0.028 2010 7 7.225 0.030 6.882 0.036 7.054 0.023 2010 8 7.232 0.027 6.911 0.034 7.072 0.022 2010 9 7.245 0.024 6.948 0.026 7.096 0.018 2010 10 7.286 0.028 6.918 0.037 7.102 0.023 2010 11 7.300 0.025 6.942 0.048 7.121 0.026 2010 12 7.295 0.030 7.005 0.034 7.150 0.022 2011 1 7.354 0.025 7.019 0.031 7.186 0.020 2011 2 7.372 0.030 7.045 0.042 7.208 0.026 2011 3 7.396 0.028 7.062 0.036 7.229 0.022 2011 4 7.424 0.028 7.071 0.037 7.247 0.023 2011 5 7.449 0.028 7.118 0.028 7.283 0.020 2011 6 7.474 0.028 7.145 0.043 7.309 0.025 2011 7 7.472 0.027 7.192 0.042 7.332 0.025 2011 8 7.474 0.030 7.176 0.035 7.325 0.023 2011 9 7.564 0.028 7.230 0.036 7.397 0.022 2011 10 7.572 0.024 7.235 0.031 7.404 0.019 2011 11 7.615 0.025 7.260 0.038 7.437 0.023 2011 12 7.657 0.026 7.294 0.035 7.476 0.022 2012 1 7.639 0.029 7.310 0.033 7.474 0.022 2012 2 7.680 0.023 7.330 0.038 7.505 0.022 2012 3 7.712 0.026 7.363 0.034 7.537 0.021 2012 4 7.700 0.021 7.352 0.032 7.526 0.019 2012 5 7.751 0.029 7.394 0.031 7.573 0.022 2012 6 7.716 0.023 7.428 0.029 7.572 0.018 2012 7 7.733 0.024 7.415 0.036 7.574 0.022 2012 8 7.771 0.029 7.444 0.033 7.608 0.022 2012 9 7.793 0.025 7.470 0.029 7.631 0.019 2012 10 7.838 0.027 7.498 0.044 7.668 0.026 2012 11 7.867 0.029 7.523 0.032 7.695 0.022 2012 12 7.897 0.025 7.564 0.038 7.730 0.022 2013 1 7.924 0.024 7.626 0.038 7.775 0.022 2013 2 nan nan nan nan nan nan 2013 3 nan nan nan nan nan nan 2013 4 nan nan nan nan nan nan 2013 5 nan nan nan nan nan nan 2013 6 nan nan nan nan nan nan 2013 7 nan nan nan nan nan nan 2013 8 nan nan nan nan nan nan 2013 9 nan nan nan nan nan nan 2013 10 nan nan nan nan nan nan 2013 11 nan nan nan nan nan nan 2013 12 nan nan nan nan nan nan