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 30 1999 02 01 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 36762 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 36887 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 37012 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 37387 1.43 18.788 15.016 3.771 3.550 3.073 0.478 37512 2.20 18.578 12.250 6.328 3.569 2.738 0.831 37637 2.29 18.552 12.228 6.325 3.571 2.752 0.819 37762 2.44 18.510 11.354 7.156 3.573 2.644 0.929 38012 2.48 18.497 11.076 7.421 3.573 2.634 0.939 38137 3.77 18.116 6.283 11.834 3.575 1.917 1.658 38262 4.00 18.044 6.232 11.813 3.572 1.939 1.633 38387 3.87 18.086 6.078 12.007 3.574 1.928 1.647 38637 3.52 18.191 7.192 10.999 3.577 2.117 1.460 38762 3.81 18.104 6.802 11.301 3.575 2.054 1.520 38887 4.37 17.928 5.910 12.018 3.566 1.904 1.662 39012 4.01 18.042 6.191 11.851 3.572 1.950 1.622 39262 4.12 18.008 5.844 12.163 3.571 1.891 1.680 39387 3.77 18.116 5.870 12.246 3.575 1.906 1.669 39512 4.17 17.992 5.663 12.328 3.570 1.864 1.706 39887 3.62 18.162 6.253 11.909 3.576 1.979 1.597 40012 3.84 18.095 6.713 11.383 3.574 2.050 1.524 40137 3.33 18.250 6.912 11.338 3.578 2.084 1.494 40262 3.83 18.096 6.708 11.388 3.575 2.050 1.525 40512 3.86 18.089 6.624 11.464 3.574 2.039 1.535 40637 3.77 18.116 6.084 12.032 3.575 1.962 1.613 40762 4.09 18.018 5.901 12.117 3.571 1.929 1.642 41137 3.92 18.070 4.773 13.297 3.574 1.753 1.821 41262 4.39 17.920 4.827 13.093 3.566 1.748 1.817 41387 4.37 17.928 4.306 13.621 3.566 1.658 1.908 41512 5.03 17.712 2.462 15.250 3.548 1.230 2.318 41762 5.06 17.703 2.352 15.350 3.548 1.201 2.347 42012 4.58 17.861 4.211 13.650 3.561 1.634 1.928 42137 4.47 17.895 4.052 13.843 3.564 1.613 1.950 42387 4.52 17.879 3.428 14.451 3.563 1.459 2.103 42512 5.12 17.683 2.054 15.630 3.546 1.135 2.410 42637 5.15 17.674 1.720 15.954 3.545 1.067 2.478 42762 5.14 17.675 1.957 15.718 3.545 1.107 2.438 43012 4.42 17.913 4.760 13.152 3.565 1.740 1.825 43137 4.22 17.976 4.671 13.305 3.569 1.734 1.835 43262 4.35 17.933 4.937 12.996 3.566 1.778 1.789 43387 4.12 18.008 4.963 13.045 3.571 1.786 1.784 43637 3.97 18.055 5.896 12.159 3.573 1.939 1.634 43762 4.10 18.014 5.820 12.194 3.571 1.923 1.648 43887 3.87 18.086 6.189 11.896 3.574 1.992 1.582 44262 3.90 18.075 6.438 11.637 3.574 2.026 1.548 44387 3.87 18.086 6.353 11.732 3.574 2.005 1.569 44512 3.87 18.086 6.558 11.528 3.574 2.039 1.535 44637 3.67 18.147 6.455 11.692 3.576 2.032 1.544 44887 4.32 17.944 5.104 12.840 3.567 1.800 1.767 45012 4.30 17.949 5.143 12.806 3.567 1.804 1.763 45137 4.22 17.976 5.192 12.784 3.569 1.813 1.756 45262 4.06 18.026 5.962 12.064 3.572 1.936 1.635 45512 3.84 18.095 6.743 11.353 3.574 2.048 1.527 45637 3.72 18.132 6.433 11.698 3.576 2.002 1.574 45762 3.80 18.107 6.819 11.288 3.575 2.071 1.504 45887 3.72 18.132 7.015 11.117 3.576 2.098 1.478 46137 4.47 17.895 4.793 13.102 3.564 1.720 1.844 46262 4.70 17.822 3.794 14.027 3.558 1.507 2.051 46387 4.89 17.761 3.374 14.387 3.553 1.412 2.141 46512 4.31 17.946 5.109 12.837 3.567 1.793 1.774 46762 4.05 18.028 5.953 12.075 3.572 1.944 1.627 46887 3.62 18.162 7.121 11.041 3.576 2.130 1.447 47012 4.18 17.987 5.543 12.444 3.570 1.874 1.696 47137 3.87 18.086 6.751 11.335 3.574 2.060 1.514 47387 4.27 17.960 5.895 12.065 3.568 1.931 1.637 47512 4.11 18.011 5.765 12.246 3.571 1.916 1.655 47637 4.52 17.879 5.684 12.195 3.563 1.892 1.670 48012 4.07 18.022 5.926 12.095 3.571 1.928 1.643 48137 4.22 17.976 6.201 11.775 3.569 1.964 1.605 48262 4.15 17.998 5.629 12.369 3.570 1.890 1.680 48387 4.63 17.845 5.459 12.387 3.560 1.866 1.694 48637 4.37 17.928 5.345 12.583 3.566 1.843 1.723 48762 4.18 17.989 5.578 12.410 3.570 1.875 1.694 48887 4.42 17.911 5.598 12.313 3.565 1.877 1.688 49012 4.20 17.981 5.458 12.522 3.569 1.860 1.709 49262 4.27 17.960 5.221 12.739 3.568 1.825 1.743 49387 4.27 17.960 5.266 12.694 3.568 1.833 1.735 49512 4.09 18.016 5.855 12.160 3.571 1.919 1.652 49637 4.22 17.976 5.285 12.691 3.569 1.839 1.730 49887 4.27 17.960 6.702 11.258 3.568 2.070 1.498 50012 3.63 18.159 7.345 10.814 3.576 2.154 1.422 50137 4.12 18.008 6.474 11.534 3.571 2.032 1.539 50262 4.02 18.038 6.055 11.983 3.572 1.961 1.611 50512 4.67 17.830 3.898 13.932 3.559 1.524 2.035 50637 5.31 17.621 3.516 14.104 3.539 1.428 2.111 50762 4.23 17.971 5.489 12.481 3.569 1.846 1.723 50887 4.17 17.992 6.274 11.718 3.570 1.987 1.583 51137 4.07 18.024 6.550 11.473 3.571 2.036 1.536 51262 4.33 17.939 5.140 12.799 3.567 1.800 1.767 51387 4.83 17.778 4.262 13.516 3.555 1.638 1.917 51762 4.69 17.826 3.788 14.038 3.559 1.523 2.035 51887 4.83 17.778 3.730 14.048 3.555 1.486 2.069 52012 4.74 17.809 3.612 14.197 3.557 1.475 2.082 52137 4.78 17.795 4.566 13.229 3.556 1.684 1.872 52387 4.12 18.008 6.070 11.938 3.571 1.963 1.608 52512 3.89 18.079 6.515 11.565 3.574 2.026 1.548 52637 3.47 18.206 7.479 10.728 3.577 2.187 1.390 52762 4.37 17.928 4.929 12.999 3.566 1.770 1.796 53012 4.20 17.980 5.494 12.487 3.569 1.859 1.710 53137 4.57 17.862 5.211 12.651 3.561 1.823 1.739 53262 4.30 17.949 5.103 12.846 3.567 1.802 1.765 53387 4.37 17.928 4.983 12.945 3.566 1.775 1.791 53637 4.12 18.008 5.583 12.424 3.571 1.879 1.692 53762 4.17 17.990 5.608 12.381 3.570 1.875 1.695 53887 4.37 17.928 5.374 12.554 3.566 1.850 1.716 54012 4.21 17.980 5.489 12.491 3.569 1.859 1.710 54262 4.43 17.908 4.653 13.255 3.565 1.728 1.837 54387 4.57 17.862 4.487 13.375 3.561 1.708 1.854 54512 4.50 17.886 4.436 13.450 3.563 1.688 1.875 54637 4.68 17.829 4.370 13.459 3.559 1.687 1.872 54887 4.42 17.911 5.186 12.725 3.565 1.826 1.739 55012 4.34 17.938 5.031 12.908 3.567 1.790 1.777 55137 4.27 17.960 5.364 12.596 3.568 1.855 1.713 55512 3.84 18.093 6.681 11.412 3.574 2.058 1.517 55637 3.77 18.116 5.865 12.251 3.575 1.922 1.653 55762 4.20 17.983 5.478 12.505 3.569 1.864 1.705 55887 4.27 17.960 4.676 13.284 3.568 1.706 1.862 56137 4.63 17.845 3.640 14.205 3.560 1.475 2.085 56262 3.78 18.113 6.873 11.240 3.575 2.079 1.497 56387 3.62 18.162 6.981 11.180 3.576 2.094 1.482 56512 4.07 18.023 5.912 12.112 3.571 1.928 1.643 56762 3.85 18.092 6.646 11.446 3.574 2.050 1.525 56887 3.92 18.070 6.686 11.384 3.574 2.047 1.527 57012 3.76 18.119 6.927 11.193 3.575 2.091 1.484 57137 4.22 17.976 5.167 12.809 3.569 1.791 1.777 57387 4.37 17.928 5.429 12.498 3.566 1.842 1.724 57512 3.80 18.107 6.774 11.333 3.575 2.054 1.521 57637 5.04 17.709 3.432 14.277 3.548 1.418 2.131 57762 3.43 18.219 8.097 10.122 3.578 2.246 1.332 58012 2.46 18.503 11.271 7.232 3.573 2.667 0.906 58137 2.31 18.545 11.866 6.679 3.571 2.730 0.841 58262 1.39 18.798 15.220 3.578 3.549 3.100 0.450 58387 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58637 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000