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 06 29 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 70479 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70604 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70729 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71104 1.78 18.739 12.968 5.771 3.556 2.885 0.671 71229 1.28 18.870 14.703 4.167 3.540 3.023 0.516 71354 2.42 18.562 10.889 7.673 3.570 2.613 0.958 71479 2.47 18.548 10.374 8.174 3.571 2.566 1.005 71729 2.75 18.469 9.515 8.954 3.575 2.475 1.099 71854 3.17 18.347 8.676 9.671 3.578 2.365 1.213 71979 3.00 18.395 8.745 9.649 3.577 2.374 1.203 72104 2.19 18.626 9.997 8.630 3.566 2.511 1.055 72354 3.21 18.333 7.630 10.703 3.578 2.257 1.321 72479 3.29 18.311 8.131 10.180 3.578 2.284 1.294 72604 3.60 18.218 7.315 10.903 3.578 2.212 1.365 72729 3.71 18.184 7.191 10.993 3.577 2.125 1.452 72979 4.05 18.081 5.980 12.101 3.574 2.013 1.561 73104 4.19 18.036 5.898 12.138 3.572 2.018 1.554 73229 4.23 18.025 5.676 12.349 3.571 1.964 1.607 73604 3.89 18.128 5.646 12.482 3.576 1.931 1.645 73729 4.35 17.987 5.443 12.544 3.570 1.886 1.683 73854 4.24 18.020 5.349 12.671 3.571 1.880 1.692 73979 4.39 17.974 5.365 12.609 3.569 1.869 1.700 74229 4.57 17.917 4.943 12.974 3.565 1.804 1.762 74354 4.75 17.859 4.742 13.116 3.561 1.772 1.789 74479 4.69 17.879 4.702 13.177 3.563 1.747 1.816 74854 5.48 17.617 3.336 14.281 3.539 1.441 2.098 74979 5.22 17.704 3.560 14.144 3.548 1.488 2.060 75104 5.59 17.581 3.413 14.167 3.534 1.425 2.110 75229 5.70 17.543 2.679 14.864 3.530 1.206 2.324 75479 5.84 17.495 2.410 15.085 3.524 1.145 2.379 75729 4.62 17.899 4.869 13.030 3.564 1.746 1.818 75854 4.54 17.924 5.661 12.263 3.566 1.894 1.672 76104 4.39 17.973 6.752 11.221 3.569 2.029 1.540 76229 2.97 18.405 9.093 9.312 3.577 2.388 1.188 76354 3.41 18.276 9.720 8.556 3.578 2.482 1.096 76479 2.47 18.546 10.560 7.986 3.571 2.576 0.995 76729 2.66 18.494 10.031 8.463 3.574 2.500 1.074 76854 2.93 18.416 10.293 8.123 3.576 2.550 1.027 76979 2.49 18.542 10.481 8.060 3.571 2.565 1.006 77104 2.60 18.510 9.996 8.514 3.573 2.519 1.054 77354 3.79 18.159 7.284 10.874 3.576 2.145 1.432 77479 3.92 18.119 6.548 11.571 3.575 2.031 1.544 77604 4.09 18.067 6.052 12.015 3.573 1.961 1.613 77979 4.58 17.913 4.919 12.994 3.565 1.776 1.789 78104 4.70 17.875 4.391 13.485 3.562 1.675 1.887 78229 4.90 17.811 4.201 13.611 3.557 1.643 1.914 78354 4.54 17.924 4.201 13.724 3.566 1.641 1.925 78604 4.70 17.875 3.956 13.919 3.562 1.599 1.963 78729 4.92 17.805 4.155 13.650 3.557 1.638 1.918 78854 4.75 17.859 4.539 13.320 3.561 1.708 1.853 78979 4.80 17.842 4.413 13.429 3.560 1.677 1.882 79229 4.79 17.847 4.461 13.386 3.560 1.693 1.867 79354 4.90 17.808 4.562 13.246 3.557 1.719 1.838 79479 4.65 17.889 4.752 13.137 3.563 1.749 1.815 79604 4.49 17.941 4.833 13.108 3.567 1.767 1.800 79854 4.70 17.875 4.842 13.033 3.562 1.768 1.794 79979 4.40 17.972 5.290 12.682 3.569 1.856 1.712 80104 4.90 17.808 5.766 12.042 3.557 1.958 1.599 80229 4.19 18.036 5.746 12.290 3.572 1.943 1.629 80479 4.04 18.082 6.100 11.982 3.574 2.001 1.573 80604 4.29 18.005 6.249 11.755 3.570 2.043 1.528 80729 3.93 18.116 6.357 11.759 3.575 2.044 1.531 80854 3.84 18.144 6.651 11.492 3.576 2.095 1.481 81104 4.60 17.908 6.216 11.692 3.565 2.018 1.547 81229 4.11 18.061 5.962 12.098 3.573 1.975 1.598 81354 4.54 17.924 5.811 12.113 3.566 1.960 1.605 81729 4.35 17.985 5.398 12.586 3.569 1.880 1.689 81854 4.39 17.973 6.008 11.964 3.569 1.993 1.575 81979 3.99 18.097 6.188 11.910 3.575 2.018 1.557 82104 4.14 18.052 6.581 11.471 3.573 2.091 1.482 82354 3.89 18.128 6.610 11.518 3.576 2.032 1.543 82479 3.31 18.303 8.125 10.179 3.578 2.264 1.314 82604 3.26 18.319 9.011 9.308 3.578 2.384 1.194 82729 3.19 18.339 8.558 9.781 3.578 2.294 1.284 82979 1.19 18.894 15.109 3.785 3.536 3.061 0.475 83104 1.92 18.701 11.886 6.815 3.559 2.724 0.835 83229 2.29 18.597 11.184 7.413 3.568 2.633 0.935 83354 3.84 18.144 8.236 9.908 3.576 2.245 1.331 83604 3.65 18.203 7.549 10.654 3.577 2.169 1.408 83729 3.77 18.166 6.918 11.247 3.577 2.079 1.498 83854 3.79 18.159 6.225 11.934 3.576 1.964 1.613 83979 4.48 17.946 5.225 12.721 3.567 1.794 1.773 84229 4.72 17.868 4.611 13.257 3.562 1.706 1.856 84354 4.65 17.892 4.413 13.479 3.564 1.682 1.881 84479 4.89 17.814 4.169 13.646 3.558 1.646 1.912 84604 4.39 17.973 4.033 13.940 3.569 1.607 1.962 84854 4.80 17.842 3.550 14.292 3.560 1.516 2.044 84979 5.08 17.750 3.818 13.932 3.552 1.560 1.992 85104 4.90 17.808 3.711 14.098 3.557 1.538 2.019 85479 5.23 17.700 3.449 14.251 3.547 1.487 2.060 85604 4.75 17.859 3.407 14.452 3.561 1.471 2.090 85729 5.27 17.690 3.394 14.296 3.546 1.489 2.057 85854 4.96 17.792 3.422 14.370 3.556 1.522 2.034 86104 5.17 17.723 3.616 14.107 3.550 1.550 1.999 86229 5.26 17.691 3.382 14.309 3.546 1.485 2.062 86354 5.11 17.740 3.374 14.367 3.551 1.500 2.051 86479 5.41 17.641 3.038 14.603 3.541 1.431 2.110 86729 4.97 17.788 4.085 13.703 3.555 1.629 1.926 86854 5.06 17.757 3.618 14.139 3.553 1.541 2.012 86979 5.52 17.606 2.838 14.768 3.537 1.409 2.128 87104 5.11 17.740 2.740 15.000 3.551 1.408 2.143 87354 5.64 17.563 2.346 15.217 3.532 1.239 2.294 87479 5.98 17.448 2.016 15.432 3.518 1.105 2.412 87604 4.90 17.808 3.550 14.258 3.557 1.539 2.018 87729 5.08 17.750 3.702 14.049 3.552 1.572 1.981 87979 6.40 17.303 1.356 15.946 3.497 0.867 2.630 88104 5.43 17.635 2.695 14.940 3.541 1.369 2.172 88229 5.56 17.593 2.804 14.789 3.536 1.377 2.158 88354 5.32 17.670 2.667 15.003 3.544 1.336 2.209 88604 6.14 17.394 1.438 15.956 3.510 0.869 2.641 88729 6.27 17.346 1.542 15.805 3.504 0.935 2.568 88854 6.03 17.432 1.508 15.924 3.516 0.897 2.619 89229 6.32 17.330 1.440 15.890 3.501 0.888 2.613 89354 6.47 17.276 1.128 16.148 3.493 0.713 2.781 89479 6.73 17.185 0.833 16.352 3.479 0.637 2.842 89604 6.64 17.216 0.954 16.263 3.484 0.631 2.853 89854 6.36 17.316 1.270 16.046 3.499 0.787 2.712 89979 6.51 17.261 1.158 16.104 3.491 0.774 2.716 90104 6.75 17.175 0.789 16.387 3.477 0.568 2.909 90229 6.71 17.191 0.871 16.319 3.479 0.656 2.823 90479 6.74 17.181 0.822 16.359 3.478 0.629 2.849 90604 6.99 17.092 0.613 16.479 3.463 0.470 2.993 90729 6.97 17.097 0.491 16.606 3.464 0.461 3.003 90854 7.10 17.050 0.509 16.540 3.455 0.416 3.039 91104 6.81 17.155 0.613 16.542 3.473 0.475 2.998 91229 6.78 17.168 0.781 16.387 3.476 0.604 2.872 91354 7.22 17.007 0.642 16.365 3.447 0.490 2.957 91479 7.14 17.037 0.330 16.707 3.453 0.336 3.117 91729 7.16 17.029 0.292 16.736 3.451 0.312 3.139 91854 7.22 17.007 0.323 16.684 3.447 0.298 3.149 91979 7.19 17.017 0.280 16.737 3.449 0.313 3.137 92104 5.43 17.635 3.079 14.555 3.541 1.397 2.144 92354 2.56 18.524 9.486 9.038 3.572 2.486 1.087 92479 3.11 18.364 8.969 9.395 3.577 2.332 1.245 92604 2.74 18.471 10.714 7.756 3.575 2.559 1.015 92979 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 93104 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 93229 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000