# file: nwr_F113_MM.dat # date: 2023-08-29 # # Chlorofluorocarbon-113 (F113) data from hourly in situ samples analyzed on a gas chromatograph located # at Niwot Ridge (NWR), Colorado (C-1 site: 40.04 N, 105.54 W, elevation: 3018 m) # # Atmospheric measurements from the NOAA/GML Chromatograph for Atmospheric Trace # Species (CATS) program. This GC replaces the RITS GCs operated during the # period of 1986 through 2000. This work was funded in part by the Atmospheric Chemistry Project of # NOAA's Climate and Global Change Program. # # Data use policy see https://gml.noaa.gov/hats/hats_datause.html # # Citation: # G.S. Dutton and B.D. Hall (2023), # Global Atmospheric Chlorofluorocarbon-113 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 2002 # 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. Monthly median 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 atmospheric variability. # # year, month, monthly median of F113 in ppt, uncertainty (unc), std. dev. (sd), number of samples # F113catsNWRyr F113catsNWRmon F113catsNWRm F113catsNWRunc F113catsNWRsd F113catsNWRn 1998 1 nan nan nan 0 1998 2 nan nan nan 0 1998 3 nan nan nan 0 1998 4 nan nan nan 0 1998 5 nan nan nan 0 1998 6 nan nan nan 0 1998 7 nan nan nan 0 1998 8 nan nan nan 0 1998 9 nan nan nan 0 1998 10 nan nan nan 0 1998 11 nan nan nan 0 1998 12 nan nan nan 0 1999 1 nan nan nan 0 1999 2 nan nan nan 0 1999 3 nan nan nan 0 1999 4 nan nan nan 0 1999 5 nan nan nan 0 1999 6 nan nan nan 0 1999 7 nan nan nan 0 1999 8 nan nan nan 0 1999 9 nan nan nan 0 1999 10 nan nan nan 0 1999 11 nan nan nan 0 1999 12 nan nan nan 0 2000 1 nan nan nan 0 2000 2 nan nan nan 0 2000 3 nan nan nan 0 2000 4 nan nan nan 0 2000 5 nan nan nan 0 2000 6 nan nan nan 0 2000 7 nan nan nan 0 2000 8 nan nan nan 0 2000 9 nan nan nan 0 2000 10 nan nan nan 0 2000 11 nan nan nan 0 2000 12 nan nan nan 0 2001 1 nan nan nan 0 2001 2 nan nan nan 0 2001 3 nan nan nan 0 2001 4 nan nan nan 0 2001 5 83.84 0.31 0.47 627 2001 6 83.90 0.29 0.39 578 2001 7 83.88 0.28 0.42 730 2001 8 83.90 0.31 0.50 717 2001 9 83.85 0.32 0.45 691 2001 10 83.75 0.50 0.64 730 2001 11 83.62 0.45 0.58 716 2001 12 83.57 0.53 0.72 637 2002 1 83.49 0.68 0.86 540 2002 2 83.49 1.06 0.99 552 2002 3 83.41 0.71 0.82 659 2002 4 83.38 0.65 0.61 696 2002 5 83.20 0.59 0.52 713 2002 6 82.98 0.35 0.51 306 2002 7 83.13 0.25 0.45 463 2002 8 83.00 0.24 0.47 686 2002 9 83.03 0.24 0.44 715 2002 10 82.78 0.28 0.45 723 2002 11 82.54 0.34 0.45 705 2002 12 82.65 0.36 0.48 713 2003 1 82.66 0.32 0.44 637 2003 2 82.74 0.29 0.40 504 2003 3 82.62 0.34 0.45 462 2003 4 82.49 0.33 0.49 674 2003 5 82.33 0.30 0.55 637 2003 6 81.70 0.24 0.41 322 2003 7 81.47 0.25 0.60 458 2003 8 81.94 0.32 0.65 666 2003 9 82.22 0.34 0.65 666 2003 10 81.81 0.43 0.79 702 2003 11 81.67 0.57 1.03 711 2003 12 82.28 0.61 0.94 731 2004 1 82.15 0.52 0.80 691 2004 2 82.13 0.66 1.04 661 2004 3 81.98 0.57 0.89 681 2004 4 82.03 0.41 0.71 712 2004 5 81.62 0.41 0.69 678 2004 6 81.60 0.56 0.80 199 2004 7 80.72 0.50 0.79 292 2004 8 81.04 0.48 0.77 729 2004 9 81.05 0.59 0.83 652 2004 10 81.04 0.50 0.75 584 2004 11 80.92 0.31 0.45 702 2004 12 80.57 0.34 0.56 710 2005 1 81.00 0.41 0.56 648 2005 2 81.06 0.49 0.56 625 2005 3 81.09 0.44 0.50 676 2005 4 81.04 0.36 0.42 682 2005 5 80.82 0.35 0.43 672 2005 6 80.62 0.32 0.37 161 2005 7 80.42 0.31 0.45 584 2005 8 80.51 0.31 0.43 739 2005 9 80.37 0.41 0.45 554 2005 10 80.01 1.12 0.83 451 2005 11 80.09 1.03 0.67 506 2005 12 79.97 0.74 0.60 593 2006 1 79.87 0.48 0.43 666 2006 2 80.26 0.50 0.46 593 2006 3 80.13 0.82 0.71 622 2006 4 80.15 0.60 0.59 604 2006 5 80.16 0.40 0.46 570 2006 6 79.84 0.42 0.61 673 2006 7 79.28 0.93 1.02 125 2006 8 nan nan nan 0 2006 9 nan nan nan 0 2006 10 nan nan nan 0 2006 11 nan nan nan 0 2006 12 nan nan nan 0 2007 1 nan nan nan 0 2007 2 nan nan nan 0 2007 3 nan nan nan 0 2007 4 nan nan nan 0 2007 5 nan nan nan 0 2007 6 nan nan nan 0 2007 7 nan nan nan 0 2007 8 nan nan nan 0 2007 9 nan nan nan 0 2007 10 nan nan nan 0 2007 11 78.66 0.27 0.30 443 2007 12 78.30 0.28 0.34 223 2008 1 78.49 0.27 0.30 648 2008 2 78.42 0.27 0.33 689 2008 3 78.13 0.25 0.26 714 2008 4 78.14 0.20 0.24 710 2008 5 78.12 0.17 0.25 720 2008 6 78.05 0.17 0.22 718 2008 7 77.91 0.16 0.30 709 2008 8 77.98 0.17 0.43 694 2008 9 77.65 0.17 0.44 716 2008 10 77.81 0.19 0.38 742 2008 11 78.16 0.21 0.30 667 2008 12 78.01 0.25 0.24 734 2009 1 78.16 0.22 0.25 737 2009 2 78.10 0.23 0.24 651 2009 3 78.13 0.19 0.21 736 2009 4 78.02 0.18 0.23 674 2009 5 77.84 0.17 0.26 740 2009 6 77.74 0.17 0.28 706 2009 7 77.58 0.20 0.30 736 2009 8 77.49 0.18 0.26 732 2009 9 77.46 0.19 0.27 664 2009 10 nan nan nan 0 2009 11 nan nan nan 0 2009 12 76.50 0.26 0.39 349 2010 1 76.57 0.24 0.35 659 2010 2 76.81 0.25 0.32 394 2010 3 76.62 0.21 0.28 668 2010 4 76.54 0.19 0.32 707 2010 5 76.49 0.18 0.27 732 2010 6 76.32 0.17 0.30 719 2010 7 76.17 0.16 0.31 696 2010 8 76.24 0.15 0.27 731 2010 9 76.33 0.19 0.28 704 2010 10 76.36 0.18 0.32 721 2010 11 76.28 0.20 0.35 709 2010 12 76.38 0.19 0.26 694 2011 1 76.48 0.26 0.32 705 2011 2 76.51 0.25 0.35 655 2011 3 76.51 0.18 0.24 561 2011 4 76.52 0.17 0.22 685 2011 5 76.39 0.15 0.24 366 2011 6 75.96 0.14 0.29 286 2011 7 75.77 0.15 0.27 354 2011 8 75.91 0.16 0.22 672 2011 9 75.94 0.16 0.26 698 2011 10 76.02 0.20 0.32 727 2011 11 75.94 0.23 0.36 587 2011 12 76.20 0.23 0.26 639 2012 1 76.26 0.24 0.27 355 2012 2 nan nan nan 0 2012 3 76.31 0.20 0.22 309 2012 4 76.29 0.18 0.26 715 2012 5 76.07 0.16 0.26 650 2012 6 75.77 0.16 0.33 640 2012 7 75.55 0.17 0.30 518 2012 8 75.53 0.15 0.27 560 2012 9 75.43 0.16 0.30 692 2012 10 75.27 0.27 0.24 503 2012 11 75.40 0.21 0.23 476 2012 12 75.30 0.30 0.23 395 2013 1 75.26 0.25 0.27 665 2013 2 75.26 0.28 0.29 563 2013 3 nan nan nan 0 2013 4 nan nan nan 0 2013 5 74.47 0.15 0.21 148 2013 6 74.46 0.13 0.20 716 2013 7 74.37 0.14 0.21 625 2013 8 74.30 0.13 0.21 745 2013 9 74.28 0.24 0.37 686 2013 10 74.16 0.34 0.54 721 2013 11 74.22 0.25 0.28 710 2013 12 74.24 0.31 0.32 282 2014 1 74.14 0.29 0.25 370 2014 2 74.05 0.23 0.25 415 2014 3 74.05 0.20 0.24 348 2014 4 74.05 0.18 0.21 579 2014 5 74.02 0.15 0.22 723 2014 6 73.91 0.13 0.21 678 2014 7 73.84 0.11 0.17 744 2014 8 73.76 0.11 0.15 745 2014 9 73.70 0.12 0.23 357 2014 10 73.56 0.25 0.35 733 2014 11 73.54 0.20 0.23 709 2014 12 73.50 0.22 0.24 738 2015 1 73.47 0.22 0.31 627 2015 2 73.62 0.21 0.31 629 2015 3 73.38 0.17 0.24 700 2015 4 73.38 0.15 0.23 681 2015 5 73.30 0.13 0.23 515 2015 6 73.48 0.19 0.28 531 2015 7 nan nan nan 0 2015 8 nan nan nan 0 2015 9 73.20 0.45 0.24 433 2015 10 73.23 0.23 0.20 707 2015 11 73.37 0.33 0.32 398 2015 12 nan nan nan 0 2016 1 nan nan nan 0 2016 2 nan nan nan 0 2016 3 73.21 0.22 0.27 542 2016 4 73.01 0.19 0.33 346 2016 5 nan nan nan 0 2016 6 72.64 0.08 0.15 203 2016 7 nan nan nan 0 2016 8 72.61 0.13 0.17 489 2016 9 72.71 0.18 0.25 685 2016 10 72.77 0.21 0.31 729 2016 11 73.09 0.28 0.31 629 2016 12 73.21 0.14 0.24 697 2017 1 73.23 0.13 0.20 671 2017 2 73.12 0.17 0.24 545 2017 3 73.18 0.20 0.26 468 2017 4 73.40 0.18 0.19 358 2017 5 73.35 0.14 0.16 363 2017 6 73.26 0.13 0.21 347 2017 7 73.16 0.09 0.25 187 2017 8 nan nan nan 0 2017 9 nan nan nan 0 2017 10 73.03 0.12 0.19 147 2017 11 72.79 0.15 0.22 712 2017 12 72.86 0.14 0.21 691 2018 1 72.85 0.14 0.21 742 2018 2 72.78 0.13 0.21 661 2018 3 72.67 0.17 0.23 732 2018 4 72.57 0.16 0.21 717 2018 5 72.35 0.15 0.20 729 2018 6 72.11 0.13 0.20 697 2018 7 71.83 0.15 0.22 365 2018 8 71.86 0.17 0.29 691 2018 9 71.68 0.15 0.23 518 2018 10 71.71 0.47 0.23 81 2018 11 71.71 0.24 0.22 133 2018 12 71.63 0.31 0.17 54 2019 1 nan nan nan 0 2019 2 nan nan nan 0 2019 3 nan nan nan 0 2019 4 nan nan nan 0 2019 5 nan nan nan 0 2019 6 nan nan nan 0 2019 7 nan nan nan 0 2019 8 nan nan nan 0 2019 9 nan nan nan 0 2019 10 nan nan nan 0 2019 11 nan nan nan 0 2019 12 nan nan nan 0 2020 1 nan nan nan 0 2020 2 nan nan nan 0 2020 3 nan nan nan 0 2020 4 nan nan nan 0 2020 5 70.46 0.85 0.41 170 2020 6 70.29 0.66 0.43 488 2020 7 70.22 0.49 0.31 305 2020 8 70.25 0.46 0.34 680 2020 9 70.39 0.42 0.34 372 2020 10 70.62 0.62 0.42 694 2020 11 70.43 0.67 0.57 680 2020 12 69.93 0.70 0.45 488 2021 1 70.05 0.61 0.57 364 2021 2 69.98 0.56 0.58 639 2021 3 70.01 0.42 0.49 533 2021 4 69.99 0.37 0.42 538 2021 5 69.91 0.43 0.44 628 2021 6 69.73 0.49 0.43 621 2021 7 69.75 0.49 0.48 444 2021 8 69.83 0.47 0.46 34 2021 9 69.43 0.46 0.48 233 2021 10 69.46 0.43 0.46 684 2021 11 69.48 0.47 0.45 149 2021 12 69.30 0.20 0.23 442 2022 1 69.19 0.18 0.20 621 2022 2 69.22 0.16 0.20 669 2022 3 69.20 0.13 0.19 426 2022 4 69.32 0.13 0.21 343 2022 5 69.23 0.13 0.22 320 2022 6 69.22 0.12 0.19 352 2022 7 69.22 0.11 0.20 205 2022 8 69.00 0.12 0.19 619 2022 9 68.79 0.15 0.21 721 2022 10 68.83 0.15 0.20 686 2022 11 68.84 0.12 0.19 716 2022 12 68.91 0.14 0.21 708 2023 1 68.84 0.12 0.19 628 2023 2 68.73 0.13 0.21 349 2023 3 68.76 0.15 0.24 415 2023 4 nan nan nan 0 2023 5 nan nan nan 0 2023 6 nan nan nan 0 2023 7 nan nan nan 0 2023 8 nan nan nan 0