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 24 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 61471 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 61596 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 61721 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62096 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62221 1.29 18.819 15.413 3.406 3.546 3.092 0.454 62346 1.26 18.828 15.500 3.327 3.545 3.102 0.444 62471 1.38 18.796 15.047 3.749 3.549 3.058 0.491 62721 1.47 18.773 14.757 4.016 3.552 3.022 0.530 62846 2.00 18.629 13.388 5.241 3.566 2.880 0.685 62971 2.65 18.444 10.875 7.569 3.576 2.556 1.020 63096 2.09 18.604 10.246 8.358 3.567 2.471 1.096 63346 2.04 18.617 10.575 8.041 3.567 2.533 1.034 63471 2.76 18.412 10.411 8.002 3.576 2.517 1.060 63596 2.41 18.513 10.257 8.257 3.573 2.499 1.074 63721 2.98 18.347 9.672 8.676 3.578 2.420 1.157 63971 3.18 18.291 8.989 9.302 3.578 2.345 1.233 64096 3.65 18.147 8.426 9.720 3.576 2.272 1.305 64221 3.43 18.213 7.984 10.229 3.577 2.177 1.400 64596 4.25 17.960 7.262 10.698 3.568 2.085 1.483 64721 3.62 18.156 7.121 11.035 3.576 2.069 1.507 64846 3.80 18.101 6.908 11.193 3.575 2.024 1.551 64971 3.68 18.139 6.861 11.278 3.576 2.032 1.544 65221 3.69 18.137 6.814 11.323 3.576 2.029 1.547 65346 3.85 18.086 6.572 11.514 3.574 1.975 1.599 65471 3.73 18.122 6.578 11.544 3.575 1.997 1.578 65846 3.95 18.055 6.078 11.977 3.573 1.912 1.661 65971 3.83 18.093 6.047 12.046 3.574 1.923 1.652 66096 3.65 18.147 5.971 12.176 3.576 1.892 1.685 66221 3.86 18.084 5.874 12.210 3.574 1.894 1.680 66471 3.90 18.069 5.518 12.552 3.573 1.850 1.723 66721 3.93 18.061 5.394 12.668 3.573 1.816 1.757 66846 3.85 18.086 5.349 12.737 3.574 1.798 1.776 67096 3.95 18.055 5.118 12.937 3.573 1.768 1.805 67221 3.96 18.051 5.093 12.959 3.573 1.780 1.793 67346 4.20 17.976 5.064 12.913 3.569 1.767 1.802 67471 3.97 18.049 5.054 12.994 3.573 1.774 1.798 67721 3.98 18.046 4.976 13.070 3.572 1.765 1.807 67846 4.15 17.992 5.011 12.981 3.570 1.759 1.811 67971 3.96 18.052 5.148 12.904 3.573 1.788 1.785 68096 4.15 17.992 5.280 12.712 3.570 1.802 1.768 68346 3.75 18.117 5.528 12.589 3.575 1.838 1.737 68471 3.90 18.069 5.513 12.556 3.573 1.861 1.713 68596 3.80 18.101 5.588 12.514 3.575 1.849 1.726 68971 3.90 18.069 5.583 12.486 3.573 1.857 1.717 69096 4.30 17.944 5.668 12.277 3.567 1.863 1.704 69221 3.85 18.086 5.895 12.191 3.574 1.910 1.665 69346 3.75 18.117 5.966 12.151 3.575 1.908 1.667 69596 4.00 18.040 6.058 11.982 3.572 1.933 1.639 69721 3.79 18.103 6.247 11.857 3.575 1.962 1.612 69846 3.70 18.132 6.326 11.806 3.576 1.981 1.594 69971 3.73 18.124 6.545 11.580 3.575 2.021 1.555 70221 3.72 18.127 6.562 11.566 3.576 2.030 1.545 70346 4.15 17.992 6.633 11.359 3.570 2.031 1.539 70471 3.70 18.131 6.665 11.467 3.576 2.041 1.535 70596 4.15 17.992 6.617 11.375 3.570 2.022 1.547 70846 3.70 18.132 6.862 11.270 3.576 2.073 1.503 70971 3.70 18.133 6.601 11.532 3.576 2.042 1.534 71096 4.66 17.829 5.197 12.632 3.559 1.783 1.776 71221 3.87 18.081 5.799 12.283 3.574 1.877 1.697 71471 2.53 18.480 11.187 7.293 3.574 2.626 0.948 71596 1.91 18.654 12.470 6.184 3.564 2.788 0.775 71721 2.01 18.626 12.976 5.650 3.566 2.832 0.734 71846 2.27 18.553 11.541 7.011 3.571 2.679 0.891 72096 4.05 18.024 7.209 10.815 3.571 2.076 1.495 72221 3.94 18.057 5.365 12.692 3.573 1.794 1.779 72346 4.25 17.960 5.708 12.253 3.568 1.847 1.721 72721 4.00 18.040 4.828 13.212 3.572 1.745 1.828 72846 4.15 17.992 4.833 13.159 3.570 1.737 1.833 72971 4.00 18.039 4.785 13.254 3.572 1.738 1.834 73096 4.10 18.008 4.770 13.238 3.571 1.733 1.838 73346 3.85 18.086 4.760 13.326 3.574 1.734 1.840 73471 3.90 18.070 5.558 12.512 3.574 1.869 1.705 73596 3.60 18.162 5.734 12.428 3.576 1.909 1.668 73721 3.87 18.081 5.739 12.342 3.574 1.906 1.668 73971 3.91 18.068 5.488 12.580 3.573 1.861 1.712 74096 3.90 18.071 5.428 12.643 3.574 1.855 1.719 74221 3.93 18.060 5.349 12.711 3.573 1.832 1.741 74346 4.10 18.008 5.314 12.694 3.571 1.826 1.745 74596 4.10 18.008 5.393 12.615 3.571 1.840 1.731 74721 3.90 18.069 5.503 12.566 3.573 1.870 1.704 74846 4.00 18.040 5.553 12.487 3.572 1.868 1.704 74971 3.91 18.069 5.518 12.551 3.573 1.868 1.706 75221 3.91 18.069 5.508 12.561 3.573 1.866 1.708 75346 3.85 18.086 5.503 12.583 3.574 1.864 1.710 75471 3.90 18.069 5.543 12.526 3.573 1.871 1.702 75596 3.31 18.250 5.343 12.907 3.578 1.846 1.732 75846 3.80 18.101 5.210 12.891 3.575 1.815 1.760 75971 3.96 18.052 5.088 12.964 3.573 1.803 1.770 76096 3.90 18.071 4.990 13.080 3.574 1.785 1.789 76471 4.04 18.026 4.249 13.777 3.572 1.664 1.908 76596 3.75 18.117 4.267 13.849 3.575 1.665 1.910 76721 4.00 18.041 4.847 13.194 3.572 1.758 1.814 76846 3.36 18.236 4.913 13.323 3.578 1.772 1.806 77096 4.10 18.008 4.694 13.314 3.571 1.749 1.821 77221 4.05 18.023 4.121 13.902 3.571 1.637 1.935 77346 4.05 18.024 4.103 13.921 3.571 1.632 1.939 77471 4.04 18.025 4.216 13.809 3.572 1.657 1.915 77721 4.06 18.022 4.041 13.981 3.571 1.630 1.941 77846 4.51 17.879 4.106 13.773 3.563 1.641 1.922 77971 4.05 18.022 4.064 13.959 3.571 1.633 1.938 78096 4.05 18.024 4.632 13.392 3.571 1.729 1.842 78346 4.05 18.024 3.947 14.077 3.571 1.611 1.960 78471 4.05 18.023 4.098 13.924 3.571 1.635 1.936 78596 3.80 18.101 4.176 13.926 3.575 1.660 1.915 78721 4.03 18.031 4.469 13.562 3.572 1.708 1.864 78971 4.05 18.023 4.071 13.952 3.571 1.643 1.929 79096 3.55 18.177 4.130 14.047 3.577 1.653 1.924 79221 4.05 18.023 4.083 13.940 3.571 1.637 1.935 79346 3.75 18.117 4.443 13.674 3.575 1.693 1.882 79596 4.05 18.024 4.653 13.371 3.571 1.701 1.871 79721 3.24 18.271 8.689 9.582 3.578 2.321 1.257 79846 2.50 18.487 7.946 10.540 3.574 2.176 1.398 80221 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80346 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80471 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000