# file: spo_HCFC22_MM.dat # date: Wed, Sep 26, 2018 2:57:23 PM # # Hydrochlorofluorocarbon-22 (HCFC22) 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-22 data from # the NOAA/ESRL halocarbons in situ program. # # DOI: http://doi.org/10.7289/V5X0659V # # Calibration scale used: NOAA 2006 # # 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 HCFC22 in ppt, std. dev., number of samples # HCFC22catsSPOyr HCFC22catsSPOmon HCFC22catsSPOm HCFC22catsSPOsd HCFC22catsSPOn 1998 1 120.17 1.55 39 1998 2 121.00 1.56 211 1998 3 121.13 0.91 521 1998 4 122.58 0.63 546 1998 5 123.77 0.61 675 1998 6 124.31 0.67 663 1998 7 124.57 0.73 576 1998 8 126.40 0.56 314 1998 9 127.36 0.60 574 1998 10 126.23 0.84 152 1998 11 126.08 0.73 321 1998 12 125.48 0.94 351 1999 1 126.50 0.89 134 1999 2 127.12 0.59 348 1999 3 127.73 0.83 574 1999 4 127.20 2.35 526 1999 5 127.66 2.47 353 1999 6 128.01 1.10 581 1999 7 128.99 2.07 556 1999 8 129.76 1.75 577 1999 9 130.97 1.52 402 1999 10 132.49 1.74 541 1999 11 131.59 0.77 597 1999 12 128.62 1.41 459 2000 1 128.91 2.16 232 2000 2 126.88 1.57 468 2000 3 128.73 2.37 593 2000 4 131.67 2.12 592 2000 5 131.62 2.21 658 2000 6 132.59 1.59 529 2000 7 135.89 1.38 522 2000 8 137.62 1.89 601 2000 9 137.90 1.60 584 2000 10 138.08 2.77 635 2000 11 137.56 2.92 467 2000 12 136.43 1.60 524 2001 1 136.97 1.84 519 2001 2 138.23 0.92 362 2001 3 140.73 0.95 343 2001 4 138.72 0.91 656 2001 5 138.57 0.81 679 2001 6 139.64 0.93 579 2001 7 140.09 1.15 580 2001 8 140.47 0.86 565 2001 9 140.68 0.60 123 2001 10 141.17 0.82 423 2001 11 140.86 0.75 548 2001 12 140.91 0.63 500 2002 1 140.41 0.56 486 2002 2 140.50 0.64 384 2002 3 139.92 0.85 369 2002 4 140.98 1.02 477 2002 5 141.63 1.42 467 2002 6 143.09 1.40 500 2002 7 147.38 0.62 443 2002 8 147.41 0.70 582 2002 9 147.22 0.90 395 2002 10 147.96 1.21 459 2002 11 147.69 0.95 186 2002 12 145.87 0.77 575 2003 1 nan nan 0 2003 2 145.91 1.08 141 2003 3 nan nan 0 2003 4 nan nan 0 2003 5 152.72 2.85 194 2003 6 152.31 2.84 196 2003 7 153.32 2.67 200 2003 8 152.66 1.65 269 2003 9 153.34 1.88 307 2003 10 150.53 1.36 213 2003 11 151.33 2.65 137 2003 12 149.12 0.52 265 2004 1 150.39 1.79 413 2004 2 151.98 1.59 598 2004 3 152.53 1.46 644 2004 4 154.41 1.43 657 2004 5 154.59 1.80 541 2004 6 nan nan 0 2004 7 159.97 1.35 69 2004 8 162.35 1.46 468 2004 9 164.21 1.67 447 2004 10 165.96 2.01 623 2004 11 164.35 1.85 202 2004 12 161.14 1.59 668 2005 1 158.92 1.38 537 2005 2 nan nan 0 2005 3 nan nan 0 2005 4 158.69 1.44 75 2005 5 159.01 1.52 255 2005 6 160.65 1.31 171 2005 7 160.90 1.23 697 2005 8 161.72 1.35 669 2005 9 162.16 1.25 661 2005 10 162.47 1.22 713 2005 11 162.78 1.23 578 2005 12 162.64 1.36 316 2006 1 161.22 4.87 210 2006 2 162.25 3.39 469 2006 3 162.56 3.35 641 2006 4 162.83 3.14 677 2006 5 162.38 2.43 665 2006 6 163.51 2.43 675 2006 7 163.03 2.40 678 2006 8 165.06 2.80 664 2006 9 166.24 4.18 608 2006 10 167.25 2.89 713 2006 11 167.74 2.75 662 2006 12 167.23 3.96 599 2007 1 166.38 2.96 595 2007 2 168.16 4.26 432 2007 3 168.86 2.83 367 2007 4 169.62 1.27 559 2007 5 172.97 1.30 655 2007 6 174.56 1.19 611 2007 7 176.07 1.13 703 2007 8 177.70 1.63 651 2007 9 179.03 1.70 442 2007 10 179.26 2.26 659 2007 11 176.47 2.21 185 2007 12 178.33 2.77 81 2008 1 179.96 1.02 415 2008 2 180.85 1.23 520 2008 3 181.69 1.85 440 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 10 184.27 0.69 615 2008 11 183.78 0.81 680 2008 12 183.77 0.88 320 2009 1 nan nan 0 2009 2 nan nan 0 2009 3 181.06 0.60 81 2009 4 182.03 0.88 567 2009 5 183.86 0.45 725 2009 6 185.15 0.46 669 2009 7 186.97 0.45 168 2009 8 189.73 0.42 157 2009 9 190.22 0.39 244 2009 10 189.94 0.42 678 2009 11 189.92 0.52 479 2009 12 nan nan 0 2010 1 nan nan 0 2010 2 nan nan 0 2010 3 nan nan 0 2010 4 186.59 1.26 76 2010 5 188.31 0.49 680 2010 6 189.21 0.54 652 2010 7 191.01 0.85 267 2010 8 nan nan 0 2010 9 nan nan 0 2010 10 nan nan 0 2010 11 nan nan 0 2010 12 nan nan 0 2011 1 nan nan 0 2011 2 nan nan 0 2011 3 nan nan 0 2011 4 nan nan 0 2011 5 nan nan 0 2011 6 nan nan 0 2011 7 nan nan 0 2011 8 nan nan 0 2011 9 nan nan 0 2011 10 nan nan 0 2011 11 nan nan 0 2011 12 nan nan 0 2012 1 nan nan 0 2012 2 nan nan 0 2012 3 nan nan 0 2012 4 nan nan 0 2012 5 nan nan 0 2012 6 nan nan 0 2012 7 208.87 0.85 368 2012 8 210.46 0.77 546 2012 9 211.39 0.67 559 2012 10 212.15 0.55 667 2012 11 211.95 0.77 644 2012 12 212.22 0.67 543 2013 1 212.06 0.67 612 2013 2 212.40 0.83 625 2013 3 212.97 0.88 607 2013 4 213.69 0.68 669 2013 5 214.64 0.55 459 2013 6 216.03 0.65 578 2013 7 216.78 0.60 668 2013 8 217.26 0.61 693 2013 9 217.89 0.59 691 2013 10 218.06 0.57 695 2013 11 217.65 0.64 641 2013 12 217.27 0.71 589 2014 1 216.71 0.66 656 2014 2 220.13 0.49 583 2014 3 221.13 0.44 692 2014 4 221.47 0.42 663 2014 5 222.30 0.39 708 2014 6 222.82 0.43 659 2014 7 222.79 0.42 702 2014 8 223.65 0.42 694 2014 9 224.31 0.36 674 2014 10 224.50 0.45 641 2014 11 224.15 0.58 622 2014 12 223.48 0.45 650 2015 1 222.50 0.63 430 2015 2 222.55 0.60 618 2015 3 226.30 0.55 686 2015 4 226.78 0.54 644 2015 5 227.84 0.49 664 2015 6 227.99 0.48 634 2015 7 228.73 0.49 651 2015 8 229.58 0.50 632 2015 9 229.29 0.41 639 2015 10 229.51 0.64 705 2015 11 228.71 0.42 638 2015 12 227.84 0.39 643 2016 1 226.74 0.45 697 2016 2 226.77 0.55 677 2016 3 227.96 0.47 661 2016 4 228.29 0.44 560 2016 5 228.59 0.48 686 2016 6 228.93 0.46 672 2016 7 229.72 0.35 683 2016 8 229.88 0.40 699 2016 9 230.08 0.33 666 2016 10 229.75 0.38 710 2016 11 229.53 0.35 689 2016 12 228.09 0.32 610 2017 1 227.22 0.33 677 2017 2 227.30 0.48 625 2017 3 227.84 0.39 654 2017 4 228.44 0.48 667 2017 5 228.92 0.48 725 2017 6 229.50 0.45 660 2017 7 230.10 0.36 704 2017 8 230.83 0.46 657 2017 9 231.39 0.47 668 2017 10 231.70 0.37 467 2017 11 231.35 0.32 651 2017 12 230.55 0.39 569 2018 1 230.06 0.48 337 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