# file: spo_HCFC142b_MM.dat # date: Wed, Sep 26, 2018 3:00:23 PM # # Hydrochlorofluorocarbon-142b (HCFC142b) data from hourly in situ samples analyzed on a gas chromatograph located # at South Pole (SPO) station Antarctica (89.98 S, 24.80 W, elevation: 2810 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/GMD1 # 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: Hydrochlorofluorocarbon-142b data from # the NOAA/ESRL halocarbons in situ program. # # DOI: http://doi.org/10.7289/V5X0659V # # Calibration scale used: NOAA 1994 # # 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. # # year, month, monthly median of HCFC142b in ppt, std. dev., number of samples # HCFC142bcatsSPOyr HCFC142bcatsSPOmon HCFC142bcatsSPOm HCFC142bcatsSPOsd HCFC142bcatsSPOn 1998 1 8.26 0.70 62 1998 2 8.15 0.62 207 1998 3 8.52 0.63 485 1998 4 8.63 0.63 529 1998 5 8.65 0.76 552 1998 6 8.92 0.62 497 1998 7 9.10 0.68 377 1998 8 9.07 0.57 289 1998 9 9.31 0.52 595 1998 10 8.72 0.56 557 1998 11 9.31 0.65 529 1998 12 9.20 0.71 580 1999 1 9.42 0.97 379 1999 2 9.41 nan 359 1999 3 9.45 nan 560 1999 4 9.60 0.71 605 1999 5 9.85 0.87 517 1999 6 10.06 0.85 591 1999 7 10.29 0.96 624 1999 8 10.81 1.09 630 1999 9 10.93 1.19 348 1999 10 10.39 0.98 276 1999 11 10.28 0.79 270 1999 12 10.13 0.62 458 2000 1 10.23 0.72 544 2000 2 nan nan 0 2000 3 nan nan 0 2000 4 nan nan 0 2000 5 nan nan 0 2000 6 nan nan 0 2000 7 nan nan 0 2000 8 nan nan 0 2000 9 nan nan 0 2000 10 nan nan 0 2000 11 nan nan 0 2000 12 nan nan 0 2001 1 11.20 1.05 451 2001 2 11.33 1.14 396 2001 3 11.70 1.01 361 2001 4 11.55 1.04 660 2001 5 11.64 0.98 686 2001 6 11.84 1.07 608 2001 7 11.83 1.05 620 2001 8 11.83 0.92 583 2001 9 12.19 nan 561 2001 10 12.15 1.05 608 2001 11 12.29 0.86 605 2001 12 12.19 0.84 530 2002 1 12.33 0.75 524 2002 2 12.39 0.83 446 2002 3 12.47 0.83 615 2002 4 12.65 0.88 538 2002 5 12.84 1.07 577 2002 6 13.07 1.08 532 2002 7 13.00 1.19 444 2002 8 13.06 1.04 560 2002 9 12.94 1.02 420 2002 10 13.17 1.25 426 2002 11 13.04 0.95 224 2002 12 13.16 0.91 668 2003 1 13.41 1.00 83 2003 2 13.15 0.78 547 2003 3 13.25 0.84 686 2003 4 12.83 0.88 601 2003 5 13.17 0.97 671 2003 6 13.26 1.00 686 2003 7 13.24 0.99 651 2003 8 13.45 0.83 701 2003 9 13.55 0.94 653 2003 10 13.70 0.84 315 2003 11 13.56 1.04 415 2003 12 13.28 0.95 505 2004 1 13.45 0.84 472 2004 2 13.70 0.99 614 2004 3 13.79 0.93 646 2004 4 14.24 1.03 659 2004 5 14.31 0.89 621 2004 6 13.56 1.28 317 2004 7 13.66 1.31 408 2004 8 13.95 1.08 634 2004 9 14.22 1.28 582 2004 10 13.87 1.16 609 2004 11 14.46 1.41 552 2004 12 14.81 1.19 686 2005 1 14.98 1.20 595 2005 2 nan nan 0 2005 3 nan nan 0 2005 4 14.28 0.55 224 2005 5 14.62 0.68 255 2005 6 14.58 0.49 154 2005 7 14.74 0.48 682 2005 8 14.71 0.55 628 2005 9 14.90 0.63 608 2005 10 14.88 0.51 664 2005 11 14.82 0.58 620 2005 12 14.94 0.68 488 2006 1 14.54 1.05 661 2006 2 14.13 1.09 536 2006 3 14.17 0.71 664 2006 4 14.34 0.44 679 2006 5 14.70 0.57 643 2006 6 14.54 0.37 177 2006 7 nan nan 0 2006 8 nan nan 0 2006 9 14.83 0.67 225 2006 10 15.07 0.77 543 2006 11 15.31 0.86 618 2006 12 15.05 1.07 597 2007 1 15.20 0.94 588 2007 2 15.45 0.96 525 2007 3 15.75 0.81 679 2007 4 15.91 0.97 664 2007 5 16.23 0.99 642 2007 6 16.53 0.87 652 2007 7 16.06 0.81 696 2007 8 16.18 0.80 695 2007 9 16.11 0.86 681 2007 10 16.20 0.89 715 2007 11 16.24 0.80 702 2007 12 16.12 0.90 705 2008 1 16.47 0.79 688 2008 2 16.44 0.77 666 2008 3 16.31 0.86 713 2008 4 nan nan 0 2008 5 nan nan 0 2008 6 nan nan 0 2008 7 nan nan 0 2008 8 nan nan 0 2008 9 nan nan 0 2008 10 nan nan 0 2008 11 nan nan 0 2008 12 nan nan 0 2009 1 17.89 0.47 106 2009 2 17.95 0.47 658 2009 3 18.03 0.42 705 2009 4 18.31 0.43 670 2009 5 18.43 0.39 737 2009 6 18.55 0.41 697 2009 7 18.49 0.41 721 2009 8 18.63 0.45 686 2009 9 18.70 0.39 695 2009 10 18.69 0.38 696 2009 11 18.70 0.42 689 2009 12 18.63 0.45 711 2010 1 18.75 0.43 705 2010 2 18.70 0.48 631 2010 3 19.00 0.44 695 2010 4 19.14 0.44 673 2010 5 19.23 0.46 698 2010 6 19.41 0.46 651 2010 7 19.81 0.51 288 2010 8 nan nan 0 2010 9 nan nan 0 2010 10 nan nan 0 2010 11 nan nan 0 2010 12 18.92 0.86 112 2011 1 19.04 0.78 719 2011 2 19.11 0.70 587 2011 3 19.24 0.75 690 2011 4 18.85 0.78 654 2011 5 18.69 0.85 666 2011 6 18.98 0.85 679 2011 7 19.35 0.65 675 2011 8 19.50 0.70 398 2011 9 19.38 0.73 355 2011 10 19.43 0.66 338 2011 11 19.48 0.58 437 2011 12 19.81 0.61 700 2012 1 20.12 0.69 550 2012 2 20.54 0.52 581 2012 3 20.34 0.47 348 2012 4 20.58 0.57 423 2012 5 20.73 0.61 540 2012 6 21.08 0.62 294 2012 7 21.04 0.58 420 2012 8 21.08 0.56 569 2012 9 21.24 0.58 574 2012 10 21.29 0.49 688 2012 11 21.01 0.59 680 2012 12 21.11 0.60 697 2013 1 20.93 0.60 681 2013 2 20.97 0.54 642 2013 3 21.07 0.50 706 2013 4 20.94 0.46 667 2013 5 21.07 0.45 459 2013 6 21.18 0.48 575 2013 7 21.21 0.56 673 2013 8 21.22 0.57 720 2013 9 21.21 0.54 676 2013 10 21.30 0.53 703 2013 11 21.18 0.54 650 2013 12 21.37 0.55 617 2014 1 21.15 0.61 657 2014 2 21.46 0.57 609 2014 3 21.43 0.50 688 2014 4 21.50 0.53 673 2014 5 21.55 0.51 707 2014 6 21.62 0.54 650 2014 7 21.43 0.48 690 2014 8 21.28 0.51 693 2014 9 21.31 0.50 668 2014 10 21.43 0.52 641 2014 11 21.36 0.58 627 2014 12 21.35 0.65 675 2015 1 21.39 0.65 444 2015 2 21.12 0.55 612 2015 3 21.31 0.50 677 2015 4 21.27 0.44 647 2015 5 21.46 0.47 666 2015 6 21.43 0.46 628 2015 7 21.39 0.47 657 2015 8 21.43 0.46 634 2015 9 21.54 0.44 646 2015 10 21.57 0.49 700 2015 11 21.51 0.49 647 2015 12 21.32 0.59 661 2016 1 21.33 0.52 661 2016 2 21.30 0.57 663 2016 3 21.42 0.50 661 2016 4 21.39 0.50 559 2016 5 21.34 0.54 682 2016 6 21.47 0.50 686 2016 7 21.14 0.49 680 2016 8 21.35 0.51 693 2016 9 21.29 0.41 666 2016 10 21.32 0.44 703 2016 11 21.26 0.51 673 2016 12 21.05 0.40 601 2017 1 20.98 0.44 688 2017 2 21.15 0.60 626 2017 3 21.21 0.61 667 2017 4 21.09 0.55 672 2017 5 21.27 0.59 720 2017 6 21.06 0.58 663 2017 7 21.16 0.61 700 2017 8 21.11 0.58 659 2017 9 21.24 0.53 674 2017 10 21.12 0.66 462 2017 11 21.15 0.60 675 2017 12 20.89 0.61 581 2018 1 20.80 0.51 324 2018 2 nan nan 0 2018 3 nan nan 0 2018 4 nan nan 0 2018 5 nan nan 0 2018 6 nan nan 0 2018 7 nan nan 0 2018 8 nan nan 0 2018 9 nan nan 0