# File: insitu_global_F11.txt # Date: 2023-08-29 # # Data use policy see https://gml.noaa.gov/hats/hats_datause.html # # Chloroflurocarbon-11 (F11) hemispheric and global monthly means from the NOAA/GML # Chromatograph for Atmospheric Trace Species (CATS) data from baseline observatories (Barrow, Alaska; # Summit, Greenland; Niwot Ridge, Colorado; Mauna Loa, Hawaii; American Samoa; South Pole). # This work was funded in part by the Atmospheric Chemistry Project of NOAA's Climate and # Global Change Program. # # Citation: # G.S. Dutton and B.D. Hall (2023), # Global Atmospheric Chloroflurocarbon-11 Hemispheric and Global Mean Dry Air Mole Fractions from the # NOAA GML Halocarbons in situ Network, 1998-2023, Version: 2023-08-29, # https://doi.org/10.7289/V5X0659V # # For contact information see https://gml.noaa.gov/about/stafflist.html # # Calibration scale used: NOAA 2016 # More information about the calibration scale can be found at: https://gml.noaa.gov/ccl/ # # See (http://www.esrl.noaa.gov/gmd/obop/) for station statistics and personnel. # # The CATS GCs sample air once an hour. Global monthly data are provided in parts-per-trillion, ppt. # Abbreviations used: # yr=year, mon=month, m=monthly data; gc=type of sample--in situ GC data, sd=standard deviation of samples, # n=number of samples, brw=Pt. Barrow, Alaska, sum=Summit, Greenland, nwr= Niwot Ridge, Colorado # mlo=Mauna Loa, Hawaii, smo = American Samoa, spo=South Pole, Antarctica # NAN=not a number or no data, and space(s) is the delimiter. # # # The standard deviation (unc) reported is the estimate of insturmental precision. # The standard deviation (sd) reported is the estimate of insturmental precision and atmospheric variablity. # insitu_F11_YYYY insitu_F11_MM insitu_NH_F11 insitu_NH_F11_sd insitu_SH_F11 insitu_SH_F11_sd insitu_Global_F11 insitu_Global_F11_sd 1998 6 nan nan nan nan nan nan 1998 7 nan nan nan nan nan nan 1998 8 nan nan nan nan nan nan 1998 9 nan nan nan nan nan nan 1998 10 nan nan nan nan nan nan 1998 11 nan nan nan nan nan nan 1998 12 nan nan nan nan nan nan 1999 1 nan nan nan nan nan nan 1999 2 nan nan nan nan nan nan 1999 3 nan nan nan nan nan nan 1999 4 nan nan nan nan nan nan 1999 5 nan nan nan nan nan nan 1999 6 262.481 0.245 nan nan nan nan 1999 7 261.845 0.311 nan nan nan nan 1999 8 261.815 0.281 nan nan nan nan 1999 9 261.797 0.314 nan nan nan nan 1999 10 262.160 0.306 nan nan nan nan 1999 11 262.023 0.322 nan nan nan nan 1999 12 261.384 0.300 nan nan nan nan 2000 1 260.884 0.319 nan nan nan nan 2000 2 260.964 0.333 259.353 0.261 260.159 0.423 2000 3 260.761 0.329 258.769 0.497 259.765 0.596 2000 4 260.519 0.316 258.316 0.287 259.417 0.427 2000 5 260.350 0.336 257.909 0.280 259.130 0.437 2000 6 260.348 0.413 257.687 0.247 259.018 0.481 2000 7 260.206 0.439 257.710 0.267 258.958 0.514 2000 8 260.250 0.420 257.711 0.295 258.980 0.513 2000 9 260.221 0.524 257.543 0.287 258.882 0.597 2000 10 260.112 0.147 257.381 0.268 258.747 0.306 2000 11 259.944 0.141 257.334 0.273 258.639 0.307 2000 12 260.085 0.126 257.340 0.355 258.712 0.376 2001 1 259.908 0.124 257.315 0.330 258.612 0.352 2001 2 259.640 0.124 257.212 0.391 258.426 0.410 2001 3 259.290 0.123 257.003 0.455 258.147 0.471 2001 4 258.997 0.133 256.427 0.367 257.712 0.390 2001 5 258.801 0.279 255.830 0.438 257.315 0.519 2001 6 258.460 0.488 256.044 0.207 257.252 0.530 2001 7 258.062 0.260 256.831 0.264 257.446 0.370 2001 8 257.811 0.291 257.026 0.221 257.418 0.365 2001 9 257.844 0.220 256.639 0.236 257.242 0.322 2001 10 257.975 0.157 256.561 0.236 257.268 0.283 2001 11 258.005 0.261 256.627 0.351 257.316 0.437 2001 12 257.902 0.178 256.637 0.360 257.270 0.401 2002 1 257.619 0.335 256.562 0.337 257.090 0.475 2002 2 257.366 0.216 256.507 0.271 256.937 0.346 2002 3 257.108 0.202 256.155 0.225 256.632 0.302 2002 4 256.828 0.268 255.729 0.262 256.279 0.375 2002 5 256.541 0.327 255.307 0.244 255.924 0.408 2002 6 256.367 0.301 255.133 0.373 255.750 0.479 2002 7 256.210 0.324 255.054 0.316 255.632 0.453 2002 8 256.061 0.291 254.782 0.285 255.421 0.407 2002 9 256.022 0.408 254.572 0.271 255.297 0.490 2002 10 255.887 0.191 254.379 0.264 255.133 0.326 2002 11 255.691 0.125 253.921 0.263 254.806 0.291 2002 12 255.480 0.146 253.599 0.291 254.539 0.325 2003 1 255.309 0.154 253.444 0.260 254.376 0.303 2003 2 255.092 0.134 253.474 0.262 254.283 0.295 2003 3 254.906 0.137 253.437 0.257 254.171 0.291 2003 4 254.659 0.174 253.360 0.236 254.010 0.294 2003 5 254.396 0.167 253.070 0.247 253.733 0.298 2003 6 254.117 0.195 252.820 0.233 253.468 0.304 2003 7 253.993 0.253 252.613 0.208 253.303 0.328 2003 8 253.993 0.258 252.517 0.218 253.255 0.338 2003 9 254.027 0.387 252.340 0.275 253.184 0.475 2003 10 253.970 0.275 251.996 0.262 252.983 0.380 2003 11 253.881 0.150 252.098 0.337 252.990 0.369 2003 12 253.729 0.144 252.129 0.380 252.929 0.406 2004 1 253.576 0.235 251.933 0.187 252.755 0.300 2004 2 253.298 0.154 251.853 0.168 252.576 0.228 2004 3 253.069 0.345 251.728 0.206 252.398 0.402 2004 4 252.868 0.211 251.820 0.243 252.344 0.322 2004 5 252.663 0.192 251.893 0.396 252.278 0.440 2004 6 252.307 0.188 251.600 0.227 251.953 0.295 2004 7 252.125 0.207 251.048 0.203 251.587 0.289 2004 8 252.009 0.237 250.951 0.256 251.480 0.349 2004 9 251.930 0.321 250.811 0.345 251.371 0.471 2004 10 251.938 0.320 250.797 0.365 251.368 0.485 2004 11 251.978 0.288 250.704 0.442 251.341 0.528 2004 12 251.790 0.199 250.483 0.413 251.137 0.459 2005 1 251.551 0.256 250.104 0.343 250.827 0.428 2005 2 251.382 0.297 249.851 0.300 250.617 0.423 2005 3 251.285 0.258 249.690 0.373 250.488 0.454 2005 4 251.110 0.255 249.206 0.336 250.158 0.422 2005 5 250.826 0.272 248.723 0.342 249.774 0.436 2005 6 250.499 0.304 248.410 0.202 249.454 0.365 2005 7 250.292 0.286 248.427 0.250 249.360 0.380 2005 8 250.176 0.317 248.354 0.165 249.265 0.357 2005 9 249.988 0.266 248.455 0.201 249.222 0.334 2005 10 249.768 0.398 248.329 0.226 249.049 0.458 2005 11 249.591 0.265 248.223 0.211 248.907 0.339 2005 12 249.397 0.232 248.127 0.230 248.762 0.327 2006 1 249.198 0.209 248.271 0.253 248.734 0.328 2006 2 249.150 0.241 248.151 0.254 248.650 0.350 2006 3 248.997 0.367 247.770 0.232 248.384 0.434 2006 4 248.843 0.359 247.340 0.246 248.092 0.435 2006 5 248.553 0.341 247.091 0.329 247.822 0.473 2006 6 248.481 0.313 246.800 0.210 247.640 0.377 2006 7 248.229 0.405 246.609 0.237 247.419 0.469 2006 8 247.999 0.229 246.476 0.223 247.237 0.320 2006 9 247.723 0.207 246.283 0.191 247.003 0.282 2006 10 247.764 0.228 246.043 0.245 246.904 0.335 2006 11 247.658 0.294 245.962 0.228 246.810 0.372 2006 12 247.505 0.430 245.828 0.227 246.667 0.487 2007 1 247.328 0.399 245.756 0.248 246.542 0.470 2007 2 247.119 0.383 245.710 0.210 246.414 0.437 2007 3 246.891 0.383 245.528 0.228 246.210 0.446 2007 4 246.651 0.427 245.039 0.250 245.845 0.495 2007 5 246.406 0.373 244.651 0.198 245.529 0.423 2007 6 246.162 0.329 244.293 0.234 245.228 0.404 2007 7 245.952 0.307 244.019 0.211 244.986 0.373 2007 8 245.686 0.285 243.939 0.222 244.813 0.361 2007 9 245.611 0.286 243.924 0.214 244.767 0.357 2007 10 245.662 0.248 243.976 0.232 244.819 0.340 2007 11 245.510 0.204 243.887 0.258 244.699 0.329 2007 12 245.188 0.148 243.888 0.234 244.538 0.277 2008 1 244.978 0.140 243.827 0.273 244.402 0.306 2008 2 244.904 0.134 243.557 0.237 244.230 0.272 2008 3 244.818 0.183 243.053 0.260 243.936 0.318 2008 4 244.587 0.201 242.783 0.248 243.685 0.319 2008 5 244.332 0.203 242.617 0.251 243.475 0.323 2008 6 244.098 0.269 242.353 0.254 243.225 0.370 2008 7 243.860 0.251 242.113 0.248 242.986 0.353 2008 8 243.623 0.217 241.947 0.200 242.785 0.295 2008 9 243.802 0.231 241.871 0.249 242.836 0.340 2008 10 243.887 0.160 241.899 0.231 242.893 0.281 2008 11 243.852 0.153 242.040 0.277 242.946 0.317 2008 12 243.656 0.124 242.188 0.284 242.922 0.310 2009 1 243.687 0.136 242.143 0.282 242.915 0.313 2009 2 243.414 0.185 241.969 0.287 242.692 0.341 2009 3 243.005 0.185 241.643 0.280 242.324 0.335 2009 4 242.563 0.142 241.326 0.298 241.945 0.330 2009 5 242.360 0.168 240.917 0.284 241.639 0.330 2009 6 242.093 0.184 240.626 0.355 241.360 0.400 2009 7 242.049 0.190 240.416 0.407 241.233 0.449 2009 8 242.207 0.185 240.436 0.360 241.322 0.404 2009 9 242.235 0.218 240.242 0.549 241.238 0.591 2009 10 242.083 0.151 239.970 0.517 241.026 0.538 2009 11 242.054 0.140 239.778 0.622 240.916 0.637 2009 12 242.087 0.148 239.894 0.421 240.991 0.447 2010 1 242.041 0.169 239.687 0.445 240.864 0.476 2010 2 241.785 0.201 239.341 0.409 240.563 0.456 2010 3 241.427 0.185 239.070 0.468 240.248 0.503 2010 4 241.101 0.170 238.933 0.578 240.017 0.602 2010 5 240.868 0.249 238.668 0.247 239.768 0.351 2010 6 240.504 0.238 238.455 0.445 239.480 0.504 2010 7 240.187 0.214 238.346 0.531 239.266 0.573 2010 8 240.025 0.178 238.095 0.462 239.060 0.495 2010 9 240.002 0.195 237.877 0.533 238.940 0.568 2010 10 239.977 0.237 237.788 0.545 238.883 0.594 2010 11 239.879 0.177 237.767 0.533 238.823 0.561 2010 12 239.682 0.171 237.672 0.543 238.677 0.569 2011 1 239.442 0.160 237.515 0.426 238.478 0.455 2011 2 239.227 0.151 237.322 0.387 238.274 0.415 2011 3 239.029 0.157 236.996 0.444 238.012 0.471 2011 4 238.821 0.158 236.695 0.348 237.758 0.382 2011 5 238.607 0.144 236.442 0.387 237.524 0.413 2011 6 238.401 0.172 236.290 0.303 237.345 0.348 2011 7 238.160 0.223 236.063 0.302 237.112 0.375 2011 8 237.984 0.182 236.088 0.360 237.036 0.403 2011 9 237.933 0.175 236.101 0.403 237.017 0.439 2011 10 237.875 0.176 236.001 0.408 236.938 0.444 2011 11 237.813 0.128 235.769 0.391 236.791 0.411 2011 12 237.786 0.147 235.637 0.406 236.712 0.432 2012 1 237.636 0.166 235.571 0.459 236.604 0.488 2012 2 237.306 0.175 235.521 0.451 236.414 0.484 2012 3 237.008 0.149 235.176 0.529 236.092 0.549 2012 4 236.860 0.187 234.759 0.332 235.809 0.381 2012 5 236.604 0.192 234.485 0.280 235.544 0.340 2012 6 236.227 0.206 234.239 0.336 235.233 0.395 2012 7 235.902 0.190 234.060 0.265 234.981 0.326 2012 8 235.784 0.179 233.991 0.280 234.887 0.332 2012 9 235.874 0.209 233.881 0.443 234.877 0.490 2012 10 235.961 0.181 233.784 0.617 234.872 0.643 2012 11 236.001 0.193 233.700 0.389 234.851 0.434 2012 12 235.981 0.177 233.615 0.345 234.798 0.388 2013 1 235.887 0.147 233.465 0.436 234.676 0.460 2013 2 235.567 0.181 233.367 0.470 234.467 0.503 2013 3 235.215 0.229 233.157 0.404 234.186 0.464 2013 4 234.871 0.205 232.880 0.301 233.876 0.364 2013 5 234.625 0.161 232.451 0.510 233.538 0.534 2013 6 234.421 0.204 232.071 0.524 233.246 0.562 2013 7 234.282 0.177 232.110 0.598 233.196 0.623 2013 8 234.221 0.165 232.298 0.572 233.259 0.596 2013 9 234.259 0.196 232.145 0.618 233.202 0.648 2013 10 234.275 0.219 231.731 0.661 233.003 0.697 2013 11 234.284 0.169 231.607 0.613 232.946 0.636 2013 12 234.154 0.158 231.537 0.663 232.846 0.681 2014 1 233.963 0.160 231.385 0.610 232.674 0.630 2014 2 233.816 0.189 231.009 0.576 232.413 0.606 2014 3 233.766 0.157 230.522 0.433 232.144 0.461 2014 4 233.716 0.147 230.167 0.491 231.942 0.512 2014 5 233.670 0.156 230.097 0.492 231.883 0.516 2014 6 233.600 0.169 230.287 0.541 231.943 0.567 2014 7 233.409 0.187 230.525 0.370 231.967 0.415 2014 8 233.312 0.177 230.591 0.305 231.951 0.352 2014 9 233.361 0.373 230.442 0.384 231.901 0.536 2014 10 233.493 0.337 230.434 0.512 231.964 0.613 2014 11 233.453 0.293 230.236 0.502 231.845 0.581 2014 12 233.263 0.238 230.187 0.515 231.725 0.567 2015 1 232.957 0.309 230.272 0.612 231.615 0.686 2015 2 232.607 0.224 230.347 0.529 231.477 0.575 2015 3 232.339 0.237 230.103 0.556 231.221 0.604 2015 4 232.241 0.249 229.728 0.463 230.985 0.526 2015 5 232.232 0.283 229.379 0.469 230.805 0.547 2015 6 231.973 0.328 229.456 0.445 230.715 0.553 2015 7 231.749 0.449 229.721 0.512 230.735 0.681 2015 8 231.841 0.242 229.802 0.441 230.821 0.503 2015 9 232.017 0.226 229.625 0.478 230.821 0.529 2015 10 232.050 0.200 229.569 0.440 230.809 0.484 2015 11 232.014 0.172 229.544 0.422 230.779 0.456 2015 12 231.907 0.280 229.564 0.423 230.736 0.507 2016 1 231.689 0.271 229.398 0.454 230.544 0.529 2016 2 231.399 0.260 229.367 0.505 230.383 0.568 2016 3 231.099 0.175 229.294 0.569 230.197 0.595 2016 4 231.040 0.181 229.036 0.697 230.038 0.720 2016 5 231.038 0.221 228.607 0.593 229.822 0.633 2016 6 230.924 0.182 228.374 0.577 229.649 0.605 2016 7 230.769 0.223 228.336 0.557 229.553 0.600 2016 8 230.766 0.130 228.434 0.317 229.600 0.343 2016 9 230.761 0.227 228.557 0.498 229.659 0.547 2016 10 230.908 0.217 228.500 0.495 229.704 0.541 2016 11 231.032 0.164 228.383 0.468 229.708 0.495 2016 12 231.114 0.258 228.347 0.480 229.730 0.545 2017 1 230.855 0.166 228.678 0.499 229.766 0.525 2017 2 230.452 0.175 228.536 0.561 229.494 0.587 2017 3 230.304 0.189 227.913 0.567 229.109 0.598 2017 4 230.421 0.208 227.294 0.627 228.858 0.661 2017 5 230.368 0.184 227.171 0.561 228.770 0.591 2017 6 230.171 0.192 227.233 0.585 228.702 0.616 2017 7 230.137 0.199 227.430 0.340 228.784 0.393 2017 8 230.297 0.186 227.617 0.595 228.957 0.623 2017 9 230.481 0.177 227.626 0.552 229.054 0.579 2017 10 230.576 0.133 227.787 0.572 229.181 0.588 2017 11 230.547 0.105 227.771 0.613 229.159 0.622 2017 12 230.446 0.099 227.652 0.306 229.049 0.321 2018 1 230.296 0.095 227.514 0.302 228.905 0.317 2018 2 230.017 0.090 227.568 0.704 228.792 0.710 2018 3 229.757 0.087 227.591 0.741 228.674 0.746 2018 4 229.571 0.087 227.470 0.706 228.521 0.711 2018 5 229.480 0.092 227.173 0.709 228.326 0.715 2018 6 229.345 0.116 227.054 0.699 228.200 0.708 2018 7 229.174 0.110 227.155 0.663 228.165 0.672 2018 8 229.100 0.131 227.090 0.592 228.095 0.606 2018 9 229.133 0.087 226.954 0.607 228.044 0.614 2018 10 229.238 0.087 227.001 0.537 228.119 0.544 2018 11 229.288 0.097 227.200 0.494 228.244 0.504 2018 12 229.208 0.093 227.251 0.466 228.229 0.475 2019 1 228.880 0.138 227.084 0.504 227.982 0.522 2019 2 228.560 0.146 226.914 0.410 227.737 0.436 2019 3 228.316 0.153 226.696 0.482 227.506 0.506 2019 4 228.101 0.164 226.296 0.526 227.199 0.551 2019 5 227.742 0.157 225.921 0.449 226.831 0.476 2019 6 227.387 0.171 225.762 0.465 226.575 0.495 2019 7 227.094 0.118 225.703 0.489 226.399 0.503 2019 8 226.951 0.100 225.670 0.463 226.311 0.474 2019 9 226.933 0.097 225.505 0.479 226.219 0.488 2019 10 226.970 0.230 225.197 0.409 226.083 0.469 2019 11 226.890 0.240 225.088 0.456 225.989 0.515 2019 12 226.703 0.252 224.992 0.549 225.848 0.604 2020 1 226.445 0.227 224.749 0.595 225.597 0.637 2020 2 226.094 0.324 224.504 0.464 225.299 0.566 2020 3 225.808 0.305 224.277 0.355 225.042 0.468 2020 4 225.495 0.277 223.975 0.443 224.735 0.523 2020 5 225.146 0.192 223.650 0.431 224.398 0.472 2020 6 224.743 0.190 223.332 0.411 224.038 0.453 2020 7 224.529 0.178 223.134 0.376 223.831 0.416 2020 8 224.421 0.198 223.201 0.369 223.811 0.419 2020 9 224.461 0.191 223.139 0.528 223.800 0.562 2020 10 224.445 0.186 222.982 0.776 223.714 0.798 2020 11 224.271 0.188 222.874 0.391 223.573 0.434 2020 12 224.185 0.207 222.711 0.315 223.448 0.377 2021 1 224.031 0.236 222.524 0.330 223.277 0.406 2021 2 223.705 0.250 222.454 0.466 223.079 0.529 2021 3 223.290 0.170 222.252 0.423 222.771 0.456 2021 4 223.121 0.171 221.898 0.362 222.510 0.401 2021 5 222.844 0.171 221.677 0.317 222.261 0.360 2021 6 222.360 0.257 221.430 0.310 221.895 0.402 2021 7 222.028 0.367 221.105 0.283 221.567 0.463 2021 8 221.841 0.366 220.848 0.282 221.345 0.462 2021 9 221.704 0.284 220.570 0.282 221.137 0.401 2021 10 221.354 0.166 220.342 0.278 220.848 0.324 2021 11 221.213 0.199 220.168 0.295 220.691 0.356 2021 12 221.125 0.195 220.202 0.278 220.664 0.340 2022 1 221.147 0.218 220.298 0.219 220.723 0.309 2022 2 220.931 0.234 220.282 0.262 220.606 0.351 2022 3 220.768 0.251 219.847 0.194 220.307 0.318 2022 4 220.545 0.203 219.347 0.175 219.946 0.268 2022 5 220.304 0.215 219.049 0.196 219.677 0.291 2022 6 220.020 0.259 218.879 0.166 219.450 0.307 2022 7 219.851 0.240 218.686 0.160 219.268 0.288 2022 8 219.753 0.215 218.545 0.188 219.149 0.285 2022 9 219.715 0.232 218.388 0.184 219.052 0.296 2022 10 219.440 0.224 218.350 0.193 218.895 0.296 2022 11 219.318 0.203 218.294 0.204 218.806 0.288 2022 12 219.283 0.172 nan nan nan nan 2023 1 218.935 0.156 nan nan nan nan 2023 2 218.642 0.190 nan nan nan nan 2023 3 218.580 0.162 nan nan nan nan 2023 4 nan nan nan nan nan nan 2023 5 nan nan nan nan nan nan 2023 6 nan nan nan nan nan nan 2023 7 nan nan nan nan nan nan 2023 8 nan nan nan nan nan nan 2023 9 nan nan nan nan nan nan 2023 10 nan nan nan nan nan nan 2023 11 nan nan nan nan nan nan 2023 12 nan nan nan nan nan nan