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 04 18 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 66939 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67064 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67189 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67564 0.80 18.942 15.596 3.346 3.529 3.156 0.373 67689 1.22 18.833 14.371 4.462 3.545 3.001 0.544 67814 0.99 18.894 14.966 3.928 3.536 3.094 0.442 67939 0.91 18.914 15.225 3.688 3.533 3.091 0.442 68189 2.04 18.612 12.057 6.556 3.567 2.737 0.830 68314 2.63 18.447 10.623 7.823 3.575 2.557 1.019 68439 3.94 18.051 5.863 12.188 3.573 1.872 1.701 68564 4.28 17.945 5.883 12.061 3.567 1.860 1.707 68814 4.54 17.863 6.128 11.735 3.561 1.908 1.654 68939 3.96 18.047 5.738 12.310 3.573 1.872 1.700 69064 4.59 17.846 6.048 11.798 3.560 1.901 1.659 69189 3.90 18.064 6.002 12.062 3.573 1.918 1.656 69439 3.88 18.070 6.199 11.871 3.574 1.934 1.639 69564 4.13 17.993 5.104 12.889 3.570 1.746 1.824 69689 4.10 18.001 4.808 13.194 3.570 1.717 1.854 70064 4.39 17.912 4.364 13.548 3.565 1.621 1.944 70189 4.15 17.988 4.377 13.611 3.570 1.634 1.936 70314 4.13 17.993 4.527 13.465 3.570 1.650 1.920 70439 4.13 17.992 4.487 13.505 3.570 1.660 1.910 70689 4.08 18.008 4.961 13.047 3.571 1.743 1.828 70814 4.03 18.024 4.821 13.203 3.571 1.710 1.861 70939 4.16 17.983 4.012 13.971 3.569 1.595 1.975 71314 4.34 17.928 4.984 12.945 3.566 1.750 1.816 71439 4.06 18.017 5.131 12.886 3.571 1.780 1.791 71564 4.03 18.024 5.000 13.024 3.571 1.740 1.831 71689 4.07 18.013 5.048 12.965 3.571 1.766 1.804 71939 4.05 18.017 5.146 12.872 3.571 1.782 1.789 72189 3.98 18.040 5.622 12.418 3.572 1.856 1.716 72314 3.73 18.117 5.819 12.298 3.575 1.878 1.697 72564 3.63 18.147 6.213 11.935 3.576 1.949 1.627 72689 3.78 18.102 6.590 11.512 3.575 2.012 1.562 72814 3.54 18.177 6.638 11.539 3.577 2.028 1.548 72939 3.72 18.122 6.809 11.314 3.575 2.054 1.521 73189 3.88 18.072 6.130 11.942 3.574 1.946 1.628 73314 3.59 18.162 6.425 11.737 3.576 1.983 1.593 73439 3.93 18.056 5.824 12.232 3.573 1.906 1.666 73564 3.73 18.117 6.119 11.998 3.575 1.928 1.647 73814 3.59 18.162 6.094 12.068 3.576 1.937 1.639 73939 3.89 18.069 6.059 12.011 3.573 1.944 1.629 74064 3.83 18.086 6.249 11.837 3.574 1.967 1.607 74439 3.77 18.105 6.577 11.528 3.575 2.021 1.554 74564 3.63 18.147 6.644 11.503 3.576 2.023 1.553 74689 3.86 18.078 6.237 11.841 3.574 1.960 1.613 74814 3.73 18.117 6.342 11.775 3.575 1.974 1.601 75064 3.44 18.207 6.440 11.766 3.577 1.989 1.588 75189 3.87 18.074 6.156 11.918 3.574 1.952 1.622 75314 3.59 18.162 6.361 11.802 3.576 1.975 1.601 75439 3.87 18.076 6.211 11.865 3.574 1.960 1.614 75689 3.55 18.174 7.532 10.642 3.577 2.139 1.438 75814 2.21 18.566 11.267 7.299 3.570 2.629 0.941 75939 2.28 18.545 11.512 7.033 3.571 2.648 0.923 76064 0.91 18.914 15.246 3.669 3.533 3.097 0.437 76314 1.17 18.846 14.822 4.024 3.543 3.043 0.500 76439 3.66 18.140 7.227 10.913 3.576 2.056 1.520 76564 2.12 18.591 11.488 7.104 3.568 2.656 0.912 76689 2.33 18.532 11.335 7.198 3.572 2.643 0.929 76939 3.25 18.263 8.524 9.739 3.578 2.282 1.296 77064 4.34 17.928 5.818 12.111 3.566 1.869 1.697 77189 3.92 18.060 5.955 12.104 3.573 1.916 1.657 77314 4.64 17.829 5.165 12.665 3.559 1.786 1.772 77564 4.18 17.977 6.171 11.806 3.569 1.945 1.624 77689 3.84 18.085 6.326 11.759 3.574 1.980 1.594 77814 4.08 18.008 5.759 12.249 3.571 1.899 1.672 78189 4.15 17.986 4.205 13.781 3.569 1.637 1.932 78314 4.13 17.993 3.889 14.104 3.570 1.589 1.981 78439 4.16 17.983 3.988 13.996 3.569 1.610 1.959 78564 3.68 18.132 4.120 14.012 3.576 1.626 1.949 78814 3.93 18.055 4.594 13.461 3.573 1.712 1.861 78939 4.12 17.997 4.578 13.419 3.570 1.714 1.856 79064 4.28 17.945 4.506 13.438 3.567 1.700 1.867 79189 4.11 18.000 4.664 13.335 3.570 1.728 1.843 79439 4.04 18.023 5.254 12.769 3.571 1.820 1.751 79564 3.68 18.132 5.497 12.635 3.576 1.863 1.713 79689 4.07 18.012 4.988 13.024 3.571 1.787 1.784 79814 3.83 18.086 4.580 13.506 3.574 1.728 1.847 80064 4.18 17.977 4.835 13.142 3.569 1.742 1.827 80189 4.14 17.991 4.395 13.596 3.570 1.671 1.899 80314 3.88 18.071 4.538 13.533 3.574 1.692 1.882 80439 4.06 18.015 5.057 12.958 3.571 1.795 1.776 80689 4.15 17.988 4.283 13.704 3.570 1.653 1.917 80814 4.23 17.961 4.576 13.385 3.568 1.699 1.869 80939 4.11 18.000 4.670 13.330 3.570 1.727 1.843 81064 4.69 17.813 4.896 12.917 3.558 1.761 1.796 81314 4.08 18.008 5.362 12.646 3.571 1.840 1.731 81439 4.05 18.017 5.141 12.876 3.571 1.802 1.769 81564 3.93 18.055 4.748 13.308 3.573 1.730 1.843 81939 4.02 18.027 5.288 12.739 3.572 1.833 1.738 82064 3.98 18.040 5.019 13.021 3.572 1.776 1.796 82189 4.09 18.006 4.823 13.182 3.571 1.747 1.823 82314 4.34 17.928 4.176 13.752 3.566 1.627 1.939 82564 4.08 18.008 5.081 12.928 3.571 1.801 1.770 82689 4.07 18.012 4.963 13.049 3.571 1.784 1.787 82814 3.83 18.086 5.377 12.709 3.574 1.848 1.726 82939 3.97 18.044 5.642 12.402 3.572 1.889 1.683 83189 3.80 18.095 6.486 11.609 3.574 1.999 1.576 83314 3.63 18.147 5.858 12.289 3.576 1.874 1.702 83439 4.16 17.985 4.244 13.741 3.569 1.598 1.972 83564 1.31 18.812 14.328 4.484 3.547 3.006 0.542 83814 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83939 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84064 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000