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 05 13 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 66397 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66522 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66647 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67022 1.60 18.751 13.980 4.772 3.554 3.012 0.543 67147 2.27 18.567 11.906 6.661 3.570 2.715 0.854 67272 1.29 18.834 13.822 5.012 3.545 2.990 0.555 67397 2.07 18.622 12.454 6.168 3.566 2.795 0.771 67647 3.81 18.116 7.568 10.547 3.575 2.118 1.457 67772 3.46 18.220 8.001 10.219 3.578 2.161 1.416 67897 3.72 18.143 7.791 10.352 3.576 2.182 1.394 68022 3.71 18.146 7.045 11.101 3.576 2.067 1.510 68272 4.61 17.861 5.781 12.080 3.561 1.881 1.681 68397 4.41 17.926 5.326 12.600 3.566 1.842 1.724 68522 4.36 17.943 5.286 12.657 3.567 1.809 1.758 68647 4.74 17.821 3.782 14.039 3.558 1.531 2.028 68897 4.55 17.881 4.736 13.144 3.563 1.735 1.827 69022 4.92 17.760 3.456 14.304 3.553 1.474 2.079 69147 4.68 17.838 4.066 13.773 3.560 1.619 1.941 69522 4.61 17.861 4.928 12.933 3.561 1.763 1.798 69647 4.41 17.927 5.366 12.561 3.566 1.845 1.721 69772 4.26 17.975 5.600 12.375 3.569 1.878 1.691 69897 4.46 17.909 5.149 12.761 3.565 1.807 1.758 70147 4.79 17.805 3.303 14.502 3.557 1.446 2.111 70272 5.19 17.673 4.448 13.225 3.545 1.670 1.874 70397 4.74 17.819 3.668 14.150 3.558 1.525 2.034 70772 4.26 17.975 4.934 13.041 3.569 1.762 1.807 70897 4.39 17.932 5.400 12.532 3.566 1.860 1.706 71022 4.46 17.911 5.242 12.669 3.565 1.822 1.743 71147 4.44 17.917 5.197 12.720 3.565 1.828 1.737 71397 4.53 17.888 4.862 13.027 3.563 1.754 1.809 71647 4.54 17.885 4.783 13.102 3.563 1.753 1.810 71772 4.46 17.911 4.770 13.140 3.565 1.738 1.826 72022 4.05 18.039 4.568 13.470 3.572 1.704 1.868 72147 4.53 17.888 4.827 13.061 3.563 1.754 1.810 72272 4.51 17.894 4.548 13.346 3.564 1.702 1.862 72397 4.54 17.886 4.778 13.107 3.563 1.748 1.815 72647 4.58 17.870 4.558 13.312 3.562 1.704 1.858 72772 4.61 17.861 4.421 13.441 3.561 1.653 1.908 72897 4.56 17.880 4.707 13.173 3.563 1.725 1.838 73022 4.41 17.927 4.625 13.302 3.566 9999.000 9999.000 73272 4.36 17.943 4.472 13.471 3.567 1.678 1.889 73397 4.64 17.854 4.329 13.525 3.561 1.648 1.913 73522 4.82 17.794 4.388 13.406 3.556 1.657 1.899 73897 4.60 17.867 4.561 13.305 3.562 1.699 1.863 74022 4.41 17.927 4.396 13.531 3.566 1.656 1.910 74147 4.64 17.853 4.291 13.562 3.561 1.647 1.913 74272 4.77 17.811 3.982 13.829 3.557 1.585 1.973 74522 4.56 17.878 3.905 13.973 3.563 1.548 2.014 74647 4.73 17.822 3.739 14.084 3.558 1.529 2.029 74772 4.56 17.878 3.699 14.179 3.563 1.503 2.060 74897 4.69 17.836 4.020 13.816 3.559 1.584 1.976 75147 4.72 17.827 3.823 14.004 3.559 1.552 2.007 75272 4.56 17.878 3.927 13.951 3.563 1.570 1.992 75397 4.80 17.800 3.169 14.632 3.557 1.401 2.155 75522 4.87 17.777 3.249 14.529 3.555 1.421 2.134 75772 5.40 17.602 3.195 14.406 3.537 1.401 2.136 75897 4.70 17.832 3.913 13.918 3.559 1.573 1.986 76022 4.56 17.878 4.720 13.158 3.563 1.715 1.848 76147 4.51 17.894 4.889 13.005 3.564 1.763 1.800 76397 4.53 17.888 4.842 13.046 3.563 1.746 1.817 76522 4.61 17.861 4.222 13.640 3.561 1.594 1.967 76647 4.64 17.853 4.331 13.522 3.561 1.630 1.930 76772 4.66 17.845 5.030 12.814 3.560 1.775 1.785 77022 4.21 17.991 5.930 12.061 3.570 1.930 1.640 77147 4.35 17.945 5.565 12.380 3.567 1.871 1.696 77272 4.51 17.894 5.400 12.494 3.564 1.844 1.720 77647 3.50 18.208 8.389 9.820 3.577 2.278 1.299 77772 3.81 18.116 7.820 10.295 3.575 2.133 1.442 77897 4.80 17.800 2.025 15.776 3.557 9999.000 9999.000 78022 4.15 18.007 8.118 9.889 3.571 2.219 1.352 78272 4.21 17.991 6.812 11.180 3.570 2.041 1.529 78397 4.33 17.951 5.660 12.291 3.567 1.867 1.700 78522 5.24 17.655 4.126 13.530 3.543 1.581 1.962 78647 4.68 17.840 4.098 13.741 3.560 1.599 1.960 78897 4.34 17.948 5.530 12.418 3.567 1.877 1.690 79022 4.72 17.828 5.390 12.438 3.559 1.847 1.712 79147 4.53 17.888 4.792 13.097 3.563 1.738 1.825 79272 4.46 17.911 5.845 12.066 3.565 1.945 1.620 79522 4.72 17.828 4.820 13.008 3.559 1.763 1.796 79647 4.43 17.921 5.196 12.725 3.566 1.831 1.735 79772 4.56 17.878 5.375 12.503 3.563 1.863 1.700 79897 4.59 17.868 4.505 13.362 3.562 1.710 1.851 80147 4.73 17.822 3.689 14.134 3.558 1.542 2.017 80272 4.66 17.845 5.073 12.771 3.560 1.818 1.742 80397 4.69 17.838 3.987 13.851 3.560 1.609 1.950 80522 4.66 17.845 3.751 14.094 3.560 1.567 1.993 80772 4.56 17.878 3.732 14.146 3.563 1.552 2.011 80897 4.68 17.838 4.006 13.833 3.560 1.620 1.939 81022 4.46 17.911 3.897 14.014 3.565 1.605 1.960 81397 4.67 17.843 4.093 13.750 3.560 1.634 1.926 81522 4.41 17.927 4.021 13.906 3.566 1.617 1.949 81647 4.71 17.831 3.879 13.953 3.559 1.594 1.965 81772 4.05 18.039 3.798 14.240 3.572 1.590 1.982 82022 4.31 17.959 3.983 13.976 3.568 1.615 1.953 82147 4.79 17.803 3.231 14.572 3.557 1.436 2.121 82272 4.87 17.777 3.251 14.526 3.555 1.465 2.089 82397 4.79 17.803 3.192 14.611 3.557 1.430 2.127 82647 4.82 17.794 2.813 14.981 3.556 1.347 2.209 82772 4.66 17.845 2.783 15.062 3.560 1.344 2.216 82897 4.82 17.795 2.847 14.948 3.556 1.360 2.197 83022 5.29 17.638 2.904 14.734 3.541 1.373 2.168 83272 5.19 17.673 2.873 14.800 3.545 1.360 2.184 83397 4.81 17.796 2.909 14.886 3.556 1.370 2.186 83522 5.13 17.691 2.943 14.748 3.546 1.414 2.132 83647 4.81 17.798 2.979 14.818 3.556 1.412 2.145 83897 4.79 17.804 3.197 14.606 3.557 1.458 2.099 84022 4.82 17.794 3.291 14.503 3.556 1.477 2.079 84147 4.79 17.804 3.193 14.610 3.557 1.469 2.088 84272 5.03 17.726 3.213 14.512 3.550 1.480 2.069 84522 4.46 17.911 4.018 13.892 3.565 1.629 1.936 84647 4.59 17.869 4.494 13.375 3.562 1.717 1.845 84772 4.66 17.845 4.126 13.719 3.560 1.633 1.927 85147 4.82 17.793 2.681 15.112 3.556 1.329 2.227 85272 5.29 17.638 3.234 14.403 3.541 1.452 2.089 85397 4.77 17.810 3.405 14.405 3.557 1.489 2.068 85522 4.82 17.794 3.484 14.310 3.556 1.513 2.043 85772 4.98 17.743 3.462 14.281 3.551 1.526 2.026 85897 4.77 17.809 3.388 14.421 3.557 1.505 2.052 86022 5.08 17.708 2.941 14.767 3.548 1.442 2.106 86147 4.82 17.795 2.861 14.934 3.556 1.402 2.155 86397 4.79 17.802 3.170 14.633 3.557 1.467 2.090 86522 4.66 17.845 3.055 14.790 3.560 1.453 2.107 86647 4.81 17.798 2.965 14.832 3.556 1.430 2.126 86772 4.77 17.811 2.882 14.929 3.557 1.432 2.125 87022 4.66 17.845 2.992 14.853 3.560 1.454 2.106 87147 4.78 17.808 3.335 14.474 3.557 1.500 2.057 87272 4.26 17.975 3.954 14.022 3.569 1.602 1.967 87397 4.41 17.925 5.311 12.615 3.566 1.823 1.743 87647 3.53 18.199 8.419 9.780 3.577 2.251 1.326 87772 2.28 18.565 10.173 8.392 3.570 2.501 1.069 87897 2.29 18.563 11.887 6.676 3.570 2.724 0.846 88022 1.60 18.751 13.324 5.427 3.554 2.923 0.631 88272 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88397 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000