54 1001 ELKINS, JAMES; WAMSLEY, PAULA; HURST, DALE; ROMASHKIN, PAVEL; DUTTON, GEOFF U.S. DEPT OF COMMERCE, NOAA / CMDL / NITROUS OXIDE AND HALOCOMPOUNDS DIVISION ACATS POLARIS 1 1 1997 09 11 1998 09 09 0 ELAPSED TIME IN SECONDS FROM 00:00:00 GMT ON SAMPLE DATE 7 1.0 1.0 1.0 1.0 1.0 1.0 1.0 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 Mean Age of Air (year) Total Br (ppt) Total Organic Br (ppt) Total Inorganic Br (ppt) Total Cl (ppb) Total Organic Cl (ppb) Total Inorganic Cl (ppb) 32 Total chlorine and bromine are based on in situ measurements of organic species from ACATS-IV [see Elkins et al., 1996]. Mean age of the air in years from tropopause is calculated using tropospheric trends from Geller et al., [1997] and formula from Volk et al., [1997]. Total chlorine calculations based on total chlorine from Montzka et al.,[1996] and formula from Woodbridge et al. [1995] for missing chlorine species, HCFC-22 and CH3Cl. Total bromine calculations are from Wamsley et al., [1997]. All values derived from theta < 380 were excluded. Elkins, J. W., D. W. Fahey, J. M. Gilligan, G. S. Dutton, T. J. Baring, C. M. Volk, R. E. Dunn, R. C. Myers, S. A. Montzka, P. R. Wamsley, et al., Airborne gas chromatograph for in situ measurements of long-lived species in the upper troposphere and lower stratosphere, Geophysical Research Letters, 23, 347-350, 1996 Geller, L. S., J. W. Elkins, J. M. Lobert, A. D. Clarke, D. F. Hurst, J. H. Butler and R. C. Myers, Tropospheric SF6: Observed latitudinal distribution and trends, derived emissions and interhemispheric exchange time, Geophysical Research Letters, 24, 1997. Montzka, S.A., J.H. Butler, R.C. Myers, T.M. Thompson, T.H. Swanson, A.D. Clarke, L.T. Lock, J.W. Elkins, Decline in the tropospheric abundance of halogen from halocarbons: Implications for stratospheric ozone depletion., Science, 272, 1318-1322, 1996. Volk, C. M., J. W. Elkins, D. W. Fahey, G. S. Dutton, J. M. Gilligan, M. Loewenstein, J. R. Podolske, K. R. Chan, and M. R. Gunson, Evaluation of source gas lifetimes from stratospheric observations, Journal of Geophysical Research, 102, 25543-64,1997. Wamsley, P. R., J. W. Elkins, D. W. Fahey, G. S. Dutton, C. M. Volk, R. C. Myers, S. A. Montzka, J. H. Butler, A. D. Clarke, P. J. Fraser, et al., Distribution of halon-1211 in the upper troposphere and lower stratosphere and the 1994 total bromine budget, Journal of Geophysical Research, 103, 1513-26, 1998. Woodbridge, E. L., J. W. Elkins, D. W. Fahey, L. E. Heidt, S. Solomon, T. J. Baring T. M. Gilpin, W. H. Pollock, S. M. Schauffler, E. L. Atlas, et al., Estimates of total organic and inorganic chlorine in the lower stratosphere from in situ and flask measurements, Journal of Geophysical Research, 100, 3057-3064, 1995. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 9011 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 9136 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 9261 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 9636 1.25 18.929 14.496 4.433 3.531 3.008 0.523 9761 0.90 19.018 15.525 3.493 3.515 9999.000 9999.000 9886 1.26 18.928 14.447 4.481 3.531 3.008 0.523 10011 2.00 18.733 12.446 6.286 3.556 2.776 0.781 10261 2.65 18.555 10.750 7.805 3.571 2.567 1.003 10386 3.29 18.372 9.566 8.806 3.577 2.417 1.161 10511 3.37 18.347 8.758 9.589 3.578 2.310 1.268 10636 3.29 18.372 9.116 9.256 3.577 2.367 1.210 10886 3.86 18.200 7.129 11.070 3.577 2.057 1.520 11011 4.15 18.112 6.490 11.622 3.575 9999.000 9999.000 11136 4.16 18.109 5.951 12.158 3.575 1.861 1.713 11261 4.31 18.063 6.047 12.016 3.573 1.904 1.669 11511 4.33 18.057 5.942 12.115 3.573 1.895 1.678 11636 4.01 18.155 6.058 12.097 3.576 1.891 1.686 11761 4.29 18.070 6.068 12.001 3.573 1.913 1.661 12136 3.91 18.185 6.433 11.751 3.577 1.955 1.622 12261 4.20 18.096 6.360 11.736 3.575 1.965 1.610 12386 3.96 18.170 6.454 11.716 3.577 1.958 1.618 12511 4.11 18.124 6.600 11.524 3.575 1.997 1.578 12761 4.16 18.109 6.449 11.660 3.575 1.978 1.597 12886 4.61 17.969 6.222 11.746 3.569 1.920 1.649 13011 4.37 18.045 5.800 12.245 3.572 1.868 1.704 13386 4.16 18.109 5.896 12.214 3.575 1.858 1.717 13511 4.21 18.092 6.334 11.758 3.574 1.953 1.621 13636 4.06 18.140 6.515 11.625 3.576 1.964 1.612 13761 4.21 18.093 6.299 11.794 3.574 1.946 1.629 14011 4.47 18.012 5.471 12.541 3.571 1.815 1.755 14261 4.42 18.029 5.675 12.354 3.572 1.843 1.729 14386 4.11 18.125 5.750 12.375 3.575 1.835 1.741 14636 4.51 18.001 5.846 12.155 3.570 1.851 1.719 14761 4.32 18.060 5.977 12.083 3.573 1.897 1.676 14886 3.86 18.200 6.063 12.136 3.577 1.894 1.684 15011 4.45 18.018 5.545 12.473 3.571 1.825 1.747 15261 4.27 18.073 6.099 11.974 3.574 1.919 1.655 15386 4.06 18.140 6.202 11.938 3.576 1.915 1.661 15511 4.06 18.140 6.767 11.373 3.576 2.024 1.552 15636 4.21 18.094 6.507 11.587 3.574 1.969 1.605 15886 4.71 17.937 5.917 12.020 3.567 1.865 1.702 16011 4.27 18.075 6.115 11.960 3.574 1.915 1.659 16136 4.56 17.985 5.876 12.109 3.569 1.858 1.712 16511 4.28 18.071 6.124 11.948 3.574 1.916 1.657 16636 4.96 17.855 6.038 11.817 3.561 1.880 1.681 16761 4.33 18.057 5.977 12.081 3.573 1.891 1.682 16886 4.61 17.969 5.382 12.586 3.569 1.772 1.796 17136 4.26 18.079 6.063 12.015 3.574 1.890 1.684 17261 4.35 18.049 5.841 12.208 3.573 1.874 1.699 17386 4.46 18.016 5.720 12.297 3.571 1.817 1.754 17511 4.41 18.030 5.650 12.380 3.572 1.841 1.731 17761 4.37 18.043 5.805 12.238 3.572 1.860 1.713 17886 4.36 18.048 5.670 12.378 3.573 1.823 1.749 18011 4.38 18.040 5.735 12.305 3.572 1.853 1.720 18136 4.56 17.985 6.149 11.835 3.569 1.892 1.677 18386 3.96 18.170 6.211 11.959 3.577 1.910 1.667 18511 4.27 18.074 6.124 11.950 3.574 1.915 1.658 18636 4.76 17.920 5.725 12.195 3.566 1.826 1.740 18761 4.39 18.037 5.730 12.307 3.572 1.849 1.723 19011 4.43 18.025 5.600 12.425 3.572 1.836 1.736 19136 4.41 18.032 5.770 12.262 3.572 1.830 1.742 19261 4.37 18.044 5.830 12.214 3.572 1.864 1.708 19386 4.66 17.953 6.371 11.582 3.568 1.934 1.633 19636 4.56 17.985 5.328 12.656 3.569 1.753 1.816 19761 4.55 17.988 5.101 12.887 3.570 1.760 1.809 19886 4.66 17.953 4.760 13.193 3.568 1.664 1.903 20261 4.42 18.027 5.665 12.362 3.572 1.839 1.732 20386 4.21 18.094 6.202 11.892 3.574 1.914 1.660 20511 4.28 18.072 6.129 11.943 3.574 1.916 1.657 20636 4.56 17.985 5.755 12.230 3.569 1.828 1.741 20886 4.26 18.079 5.327 12.752 3.574 1.774 1.800 21011 4.43 18.024 5.580 12.444 3.571 1.830 1.741 21136 4.21 18.094 5.570 12.524 3.574 1.808 1.766 21261 4.36 18.047 5.775 12.271 3.573 1.871 1.702 21511 4.25 18.080 6.196 11.884 3.574 1.920 1.654 21636 3.96 18.170 5.872 12.298 3.577 1.858 1.718 21761 3.46 18.320 8.549 9.771 3.578 2.277 1.301 21886 3.05 18.440 9.110 9.330 3.576 2.329 1.247 22136 1.95 18.746 12.766 5.980 3.555 2.837 0.718 22261 1.04 18.983 15.219 3.763 3.522 3.083 0.439 22386 1.29 18.920 14.588 4.332 3.532 3.026 0.506 22511 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000