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 19 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 72266 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72391 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72516 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72891 0.71 19.071 14.896 4.175 3.505 3.074 0.431 73016 1.87 18.775 12.466 6.310 3.552 2.790 0.761 73141 2.65 18.559 11.418 7.141 3.570 2.664 0.906 73266 3.14 18.421 9.753 8.668 3.576 2.438 1.138 73516 4.07 18.144 7.485 10.659 3.576 2.099 1.477 73641 3.69 18.258 7.517 10.741 3.578 2.097 1.481 73766 3.57 18.294 8.814 9.480 3.578 2.288 1.290 73891 3.93 18.184 7.550 10.635 3.577 2.110 1.467 74141 3.74 18.243 7.682 10.561 3.578 2.114 1.464 74266 4.29 18.075 6.730 11.345 3.574 1.994 1.580 74391 4.33 18.063 6.272 11.790 3.573 1.887 1.686 74516 4.52 18.002 5.827 12.176 3.570 1.851 1.719 74766 4.63 17.970 5.408 12.562 3.569 1.776 1.792 74891 4.13 18.124 5.200 12.925 3.575 1.735 1.841 75016 4.65 17.963 5.175 12.788 3.568 1.759 1.809 75391 4.28 18.078 5.192 12.887 3.574 1.712 1.862 75516 4.68 17.954 5.134 12.820 3.568 1.727 1.841 75641 4.68 17.952 5.305 12.648 3.568 1.730 1.838 75766 4.62 17.971 5.398 12.573 3.569 1.775 1.794 76016 4.63 17.970 5.368 12.602 3.569 1.772 1.796 76141 4.38 18.047 5.651 12.396 3.573 1.776 1.797 76266 4.64 17.966 5.329 12.638 3.568 1.765 1.804 76641 4.63 17.968 5.164 12.805 3.569 1.707 1.861 76766 4.67 17.955 5.154 12.802 3.568 1.736 1.831 76891 4.78 17.920 5.128 12.792 3.566 1.708 1.858 77016 4.68 17.953 5.080 12.873 3.568 1.730 1.838 77266 4.72 17.940 4.796 13.144 3.567 1.676 1.891 77516 4.73 17.937 4.725 13.212 3.567 1.660 1.906 77641 4.68 17.952 4.825 13.128 3.568 1.658 1.909 77891 5.14 17.804 5.011 12.793 3.557 1.696 1.861 78016 4.68 17.951 5.081 12.870 3.567 1.724 1.843 78141 4.99 17.854 5.025 12.829 3.561 1.701 1.860 78266 4.69 17.949 4.928 13.021 3.567 1.709 1.858 78516 4.65 17.962 5.181 12.781 3.568 1.756 1.812 78641 4.63 17.968 5.235 12.733 3.569 1.731 1.838 78766 4.60 17.979 5.546 12.433 3.569 1.800 1.769 78891 4.89 17.887 5.363 12.524 3.563 9999.000 9999.000 79141 4.89 17.887 5.220 12.667 3.563 1.735 1.828 79266 4.66 17.959 5.157 12.802 3.568 1.747 1.821 79391 5.04 17.837 4.990 12.847 3.560 1.705 1.855 79766 4.69 17.950 5.017 12.933 3.567 1.717 1.850 79891 4.73 17.936 5.270 12.666 3.567 1.733 1.833 80016 4.63 17.968 5.323 12.645 3.568 1.774 1.794 80141 4.48 18.016 4.843 13.173 3.571 1.660 1.911 80391 4.83 17.904 4.746 13.158 3.564 1.634 1.930 80516 4.67 17.955 5.109 12.846 3.568 1.733 1.834 80641 4.58 17.984 5.349 12.636 3.569 1.742 1.828 80766 4.66 17.959 5.187 12.772 3.568 1.746 1.822 81016 4.68 17.954 5.114 12.840 3.568 1.735 1.832 81141 4.83 17.904 4.919 12.984 3.564 1.678 1.886 81266 4.69 17.951 5.006 12.945 3.567 1.723 1.844 81391 4.58 17.984 5.144 12.840 3.569 1.711 1.858 81641 4.28 18.078 5.353 12.725 3.574 1.747 1.827 81766 4.61 17.975 5.467 12.508 3.569 1.789 1.780 81891 4.83 17.904 5.517 12.387 3.564 1.766 1.798 82016 4.63 17.969 5.383 12.586 3.569 1.775 1.793 82266 4.68 17.953 5.035 12.919 3.568 1.728 1.840 82391 4.83 17.904 4.924 12.980 3.564 1.680 1.884 82516 4.69 17.951 5.026 12.925 3.567 1.727 1.841 82641 4.78 17.920 5.167 12.753 3.566 1.724 1.841 82891 4.68 17.952 5.265 12.688 3.568 1.736 1.831 83016 4.69 17.951 5.067 12.884 3.567 1.723 1.845 83141 5.14 17.804 4.804 13.000 3.557 1.665 1.892 83516 4.69 17.948 4.968 12.980 3.567 1.704 1.863 83641 5.09 17.821 5.071 12.750 3.558 1.694 1.864 83766 4.67 17.955 5.119 12.836 3.568 1.733 1.834 83891 4.58 17.984 5.041 12.943 3.569 1.699 1.871 84141 4.63 17.968 4.906 13.062 3.569 1.672 1.897 84266 4.67 17.956 5.128 12.827 3.568 1.733 1.834 84391 4.43 18.032 5.215 12.817 3.572 1.734 1.838 84516 4.61 17.976 5.512 12.464 3.569 1.790 1.779 84766 4.61 17.975 5.502 12.473 3.569 1.788 1.780 84891 4.33 18.063 5.339 12.724 3.573 1.733 1.840 85016 4.64 17.964 5.260 12.705 3.568 1.764 1.804 85141 4.38 18.047 5.039 13.009 3.573 1.714 1.858 85391 5.14 17.804 4.862 12.942 3.557 1.667 1.889 85516 4.70 17.947 4.969 12.978 3.567 1.711 1.857 85641 4.43 18.032 4.801 13.231 3.572 1.653 1.919 85766 4.72 17.941 4.829 13.112 3.567 1.683 1.884 86016 4.72 17.940 4.796 13.144 3.567 1.674 1.892 86141 4.33 18.063 5.251 12.811 3.573 1.721 1.852 86266 4.71 17.943 4.843 13.099 3.567 1.686 1.881 86391 4.58 17.984 4.709 13.275 3.569 1.640 1.929 86641 4.73 17.936 4.994 12.942 3.567 1.677 1.889 86766 4.71 17.945 4.866 13.079 3.567 1.698 1.869 86891 4.94 17.871 4.776 13.095 3.562 1.653 1.909 87266 4.67 17.955 5.074 12.881 3.568 1.732 1.836 87391 4.83 17.904 5.343 12.560 3.564 1.745 1.820 87516 4.66 17.961 5.166 12.795 3.568 1.749 1.819 87641 5.09 17.821 5.123 12.698 3.558 1.708 1.850 87891 4.94 17.871 5.393 12.477 3.562 1.742 1.820 88016 4.69 17.950 4.942 13.008 3.567 1.712 1.855 88141 4.94 17.871 5.012 12.859 3.562 1.686 1.876 88266 4.70 17.947 4.989 12.958 3.567 1.705 1.862 88516 4.70 17.945 4.901 13.044 3.567 1.695 1.872 88641 5.04 17.837 5.081 12.757 3.560 1.692 1.868 88766 4.69 17.948 4.988 12.960 3.567 1.711 1.856 88891 4.58 17.984 4.633 13.351 3.569 1.628 1.942 89141 4.89 17.887 4.838 13.049 3.563 1.659 1.905 89266 4.70 17.946 4.860 13.085 3.567 1.695 1.872 89391 5.09 17.821 4.746 13.074 3.558 1.644 1.914 89516 4.65 17.961 5.176 12.786 3.568 1.752 1.816 89766 4.68 17.952 5.021 12.931 3.568 1.715 1.852 89891 4.63 17.968 5.084 12.884 3.569 1.694 1.874 90016 4.72 17.939 4.742 13.197 3.567 1.673 1.893 90141 4.83 17.904 4.525 13.379 3.564 1.607 1.958 90391 4.63 17.968 5.230 12.738 3.569 1.728 1.841 90516 4.67 17.957 5.053 12.904 3.568 1.735 1.833 90641 4.68 17.952 5.181 12.771 3.568 1.719 1.849 91016 4.75 17.931 4.525 13.406 3.566 1.633 1.934 91141 4.99 17.854 4.615 13.239 3.561 1.620 1.941 91266 4.68 17.951 5.051 12.900 3.567 1.719 1.848 91391 4.83 17.904 4.742 13.162 3.564 1.651 1.913 91641 3.98 18.169 5.074 13.095 3.577 1.701 1.875 91766 4.65 17.963 5.255 12.708 3.568 1.755 1.813 91891 4.38 18.047 4.782 13.266 3.573 1.665 1.908 92016 4.71 17.943 4.913 13.030 3.567 1.686 1.881 92266 4.63 17.969 5.348 12.620 3.569 1.766 1.803 92391 4.08 18.139 5.373 12.767 3.576 1.749 1.827 92516 4.67 17.955 5.074 12.881 3.568 1.730 1.838 92641 4.23 18.094 5.003 13.091 3.574 1.709 1.865 92891 4.63 17.968 4.783 13.185 3.569 1.657 1.911 93016 4.75 17.929 4.463 13.466 3.566 1.625 1.941 93141 4.58 17.984 4.392 13.592 3.569 1.586 1.983 93266 4.72 17.939 4.747 13.191 3.567 1.670 1.896 93516 4.67 17.955 5.014 12.941 3.568 1.725 1.843 93641 4.99 17.854 5.220 12.634 3.561 1.729 1.832 93766 4.75 17.932 4.513 13.418 3.566 1.634 1.932 93891 5.30 17.753 4.386 13.367 3.552 1.590 1.962 94141 4.68 17.952 4.391 13.562 3.568 1.592 1.975 94266 4.73 17.938 4.658 13.280 3.567 1.667 1.900 94391 4.89 17.887 4.985 12.902 3.563 1.696 1.867 94766 4.64 17.965 5.285 12.680 3.568 1.755 1.813 94891 4.73 17.936 4.912 13.024 3.567 1.661 1.905 95016 4.70 17.945 4.856 13.090 3.567 1.695 1.872 95141 4.99 17.854 5.181 12.673 3.561 1.722 1.839 95391 4.78 17.920 4.699 13.221 3.566 1.638 1.927 95516 4.48 18.016 6.024 11.992 3.571 1.880 1.691 95641 4.03 18.155 7.701 10.454 3.576 2.124 1.453 95766 4.27 18.082 6.838 11.244 3.574 1.999 1.575 96016 3.23 18.393 9.540 8.853 3.577 2.403 1.174 96141 2.11 18.710 12.623 6.086 3.559 2.827 0.732 96266 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 96391 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 96641 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000