# file: nwr_F113_MM.dat # date: Mon, Mar 8, 2021 2:31:44 PM # # Chloroflurocarbon-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/ESRL 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. # # (PIs) Geoffrey S. Dutton, Dr. James W. Elkins, Dr. Bradley D. Hall # # National Oceanic and Atmospheric Administration (NOAA) # Earth System Research Laboratory (ESRL) # 325 Broadway, R/GML # Boulder, CO 80305-3328 # # Email: Geoff.Dutton@noaa.gov; James.W.Elkins@noaa.gov; Bradley.Hall@noaa.gov # Phone: (303) 497-6086 (303) 497-6224 (303) 497-7011 # Fax: (303) 497-6290 # # See (http://www.esrl.noaa.gov/gmd/obop/) for station statistics and personnel. # # 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. We are trying to encourage scientific discussion. # The PIs can discuss the quality of the data and any potential problems with its analysis. Recent data (less # than 1.5 years) are considered preliminary. Please contact the PIs for more information. # # The data should be cited in presentations or publications as the flowing: Chloroflurocarbon-113 data from # the NOAA/ESRL halocarbons in situ program. # # DOI: http://doi.org/10.7289/V5X0659V # # Calibration scale used: NOAA 2002 # # More information about the calibration scale can be found at: # http://www.esrl.noaa.gov/gmd/ccl/ # # 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 83.83 0.31 0.47 621 2001 6 83.89 0.28 0.49 589 2001 7 83.88 0.28 0.41 714 2001 8 83.90 0.31 0.49 707 2001 9 83.85 0.32 0.44 681 2001 10 83.76 0.49 0.63 714 2001 11 83.63 0.45 0.58 700 2001 12 83.56 0.53 0.72 619 2002 1 83.50 0.67 0.84 515 2002 2 83.50 1.02 0.98 519 2002 3 83.40 0.71 0.81 649 2002 4 83.37 0.62 0.61 676 2002 5 83.20 0.59 0.51 683 2002 6 82.98 0.35 0.51 302 2002 7 83.13 0.25 0.45 463 2002 8 83.00 0.24 0.47 686 2002 9 83.02 0.24 0.44 715 2002 10 82.79 0.28 0.45 723 2002 11 82.54 0.34 0.44 697 2002 12 82.65 0.36 0.48 713 2003 1 82.65 0.32 0.43 626 2003 2 82.74 0.29 0.40 503 2003 3 82.62 0.34 0.45 460 2003 4 82.49 0.33 0.49 666 2003 5 82.33 0.29 0.52 621 2003 6 81.70 0.23 0.40 315 2003 7 81.47 0.25 0.59 456 2003 8 81.93 0.31 0.64 661 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 0.60 0.94 727 2004 1 82.15 0.52 0.80 691 2004 2 82.12 0.66 1.04 661 2004 3 81.98 0.56 0.89 677 2004 4 82.03 0.41 0.71 712 2004 5 81.62 0.41 0.69 672 2004 6 81.59 0.56 0.80 199 2004 7 80.72 0.50 0.79 292 2004 8 81.04 0.47 0.77 726 2004 9 81.05 0.59 0.83 644 2004 10 81.04 0.51 0.75 583 2004 11 80.92 0.31 0.45 696 2004 12 80.57 0.34 0.56 706 2005 1 81.00 0.41 0.56 644 2005 2 81.05 0.50 0.55 615 2005 3 81.09 0.43 0.49 668 2005 4 81.04 0.36 0.42 682 2005 5 80.82 0.35 0.43 670 2005 6 80.63 0.34 0.37 157 2005 7 80.42 0.31 0.45 570 2005 8 80.51 0.31 0.41 727 2005 9 80.37 0.41 0.44 535 2005 10 80.01 1.11 0.83 449 2005 11 80.10 1.04 0.67 492 2005 12 79.96 0.75 0.59 585 2006 1 79.86 0.48 0.43 658 2006 2 80.25 0.50 0.45 570 2006 3 80.12 0.82 0.70 608 2006 4 80.14 0.61 0.57 582 2006 5 80.16 0.39 0.45 556 2006 6 79.83 0.42 0.61 654 2006 7 79.28 0.97 1.03 121 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 0.30 442 2007 12 78.31 0.26 0.34 220 2008 1 78.48 0.27 0.29 641 2008 2 78.42 0.26 0.33 685 2008 3 78.13 0.25 0.26 700 2008 4 78.14 0.20 0.24 702 2008 5 78.12 0.17 0.25 702 2008 6 78.05 0.18 0.22 700 2008 7 77.91 0.16 0.30 701 2008 8 77.98 0.17 0.42 678 2008 9 77.65 0.17 0.44 715 2008 10 77.79 0.19 0.37 728 2008 11 78.16 0.21 0.30 663 2008 12 78.01 0.25 0.24 724 2009 1 78.16 0.22 0.25 737 2009 2 78.10 0.23 0.24 651 2009 3 78.13 0.19 0.21 731 2009 4 78.02 0.18 0.23 668 2009 5 77.85 0.17 0.25 732 2009 6 77.74 0.17 0.28 698 2009 7 77.58 0.20 0.30 714 2009 8 77.49 0.18 0.26 726 2009 9 77.46 0.18 0.27 658 2009 10 nan nan nan 0 2009 11 nan nan nan 0 2009 12 76.51 0.25 0.38 330 2010 1 76.57 0.24 0.35 651 2010 2 76.81 0.25 0.32 384 2010 3 76.63 0.21 0.28 660 2010 4 76.53 0.19 0.32 697 2010 5 76.49 0.19 0.27 716 2010 6 76.31 0.17 0.29 712 2010 7 76.17 0.16 0.33 689 2010 8 76.23 0.15 0.27 719 2010 9 76.33 0.20 0.28 684 2010 10 76.36 0.18 0.32 718 2010 11 76.28 0.21 0.34 681 2010 12 76.38 0.18 0.25 678 2011 1 76.47 0.25 0.30 667 2011 2 76.50 0.24 0.35 649 2011 3 76.51 0.18 0.23 546 2011 4 76.52 0.17 0.22 677 2011 5 76.39 0.16 0.24 364 2011 6 75.96 0.15 0.29 285 2011 7 75.77 0.16 0.27 352 2011 8 75.91 0.16 0.22 658 2011 9 75.94 0.16 0.26 698 2011 10 76.02 0.20 0.31 711 2011 11 75.94 0.23 0.36 580 2011 12 76.21 0.23 0.26 631 2012 1 76.26 0.23 0.26 351 2012 2 nan nan nan 0 2012 3 76.31 0.20 0.22 309 2012 4 76.29 0.18 0.26 707 2012 5 76.07 0.16 0.26 650 2012 6 75.77 0.16 0.33 638 2012 7 75.55 0.17 0.31 515 2012 8 75.53 0.15 0.27 556 2012 9 75.43 0.16 0.30 682 2012 10 75.27 0.28 0.24 492 2012 11 75.40 0.18 0.24 474 2012 12 75.30 0.30 0.23 395 2013 1 75.26 0.26 0.25 653 2013 2 75.26 0.26 0.27 535 2013 3 nan nan nan 0 2013 4 nan nan nan 0 2013 5 74.47 0.16 0.24 149 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 0.23 0.36 686 2013 10 74.16 0.34 0.54 721 2013 11 74.22 0.25 0.28 710 2013 12 74.24 0.30 0.32 282 2014 1 74.15 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 0.19 0.21 579 2014 5 74.02 0.15 0.22 723 2014 6 73.91 0.12 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 0.22 349 2014 10 73.56 0.25 0.35 729 2014 11 73.54 0.20 0.23 695 2014 12 73.50 0.22 0.24 738 2015 1 73.46 0.22 0.31 595 2015 2 73.62 0.21 0.31 617 2015 3 73.38 0.17 0.24 694 2015 4 73.38 0.15 0.23 673 2015 5 73.30 0.13 0.23 515 2015 6 73.49 0.19 0.28 525 2015 7 nan nan nan 0 2015 8 nan nan nan 0 2015 9 73.20 0.42 0.23 425 2015 10 73.23 0.22 0.20 684 2015 11 73.37 0.33 0.32 395 2015 12 nan nan nan 0 2016 1 nan nan nan 0 2016 2 nan nan nan 0 2016 3 73.17 0.34 0.33 575 2016 4 73.01 0.31 0.32 342 2016 5 nan nan nan 0 2016 6 72.65 0.13 0.16 204 2016 7 nan nan nan 0 2016 8 72.59 0.18 0.19 488 2016 9 72.68 0.26 0.26 626 2016 10 72.75 0.32 0.33 678 2016 11 73.11 0.46 0.38 599 2016 12 73.25 0.20 0.29 688 2017 1 73.25 0.19 0.27 664 2017 2 73.10 0.23 0.30 544 2017 3 73.18 0.28 0.34 466 2017 4 73.46 0.24 0.28 358 2017 5 73.39 0.20 0.24 358 2017 6 73.24 0.18 0.29 337 2017 7 73.09 0.14 0.35 182 2017 8 nan nan nan 0 2017 9 nan nan nan 0 2017 10 72.96 0.23 0.23 146 2017 11 72.69 0.21 0.26 704 2017 12 72.80 0.20 0.25 691 2018 1 72.81 0.20 0.26 736 2018 2 72.75 0.19 0.25 655 2018 3 72.66 0.24 0.26 716 2018 4 72.59 0.24 0.24 713 2018 5 72.38 0.21 0.22 709 2018 6 72.17 0.18 0.23 681 2018 7 71.86 0.20 0.24 366 2018 8 71.89 0.27 0.36 678 2018 9 71.71 0.33 0.29 514 2018 10 71.76 1.53 0.56 85 2018 11 71.92 1.42 0.44 140 2018 12 71.87 1.21 0.48 55 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 70.45 0.86 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 0.47 0.34 684 2020 9 70.39 0.42 0.34 372 2020 10 70.62 0.62 0.42 694 2020 11 70.67 0.69 0.44 651 2020 12 70.55 0.64 0.46 484 2021 1 71.18 0.72 0.71 616 2021 2 71.08 0.55 0.62 583 2021 3 70.87 0.60 0.73 140