56 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 06 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) 34 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. ACATS did not measure N2O. To calculate CH3CCl3 ATLAS N2O was used. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 64777 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64902 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65027 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65402 1.23 18.846 14.248 4.597 3.543 2.975 0.568 65527 0.84 18.945 15.739 3.205 3.528 3.167 0.361 65652 1.80 18.691 13.659 5.032 3.560 2.936 0.625 65777 1.27 18.833 14.335 4.498 3.545 3.017 0.527 66027 3.63 18.165 6.988 11.177 3.577 2.075 1.502 66152 3.35 18.250 8.030 10.220 3.578 2.206 1.372 66277 3.98 18.056 5.202 12.854 3.573 1.743 1.830 66402 4.96 17.743 3.624 14.119 3.551 1.481 2.071 66652 4.39 17.927 7.415 10.512 3.566 2.143 1.423 66777 3.35 18.248 7.884 10.364 3.578 2.217 1.361 66902 4.49 17.895 8.058 9.836 3.564 2.252 1.312 67027 3.76 18.124 6.300 11.824 3.575 1.964 1.612 67277 3.87 18.091 5.721 12.369 3.574 1.923 1.652 67402 3.96 18.063 5.230 12.833 3.573 1.828 1.745 67527 3.88 18.085 5.710 12.375 3.574 1.897 1.677 67902 4.70 17.828 4.583 13.246 3.559 1.742 1.817 68027 3.92 18.074 5.509 12.565 3.574 1.861 1.713 68152 4.39 17.927 5.399 12.528 3.566 1.871 1.695 68277 4.07 18.027 4.421 13.606 3.572 1.697 1.875 68527 3.93 18.070 5.329 12.741 3.574 1.873 1.701 68652 4.24 17.976 5.036 12.939 3.569 1.831 1.738 68777 4.10 18.019 4.083 13.936 3.571 1.627 1.944 69152 5.22 17.656 4.000 13.656 3.543 1.625 1.918 69277 4.05 18.034 4.636 13.398 3.572 1.746 1.826 69402 3.93 18.070 4.609 13.461 3.574 1.751 1.823 69527 4.06 18.029 4.453 13.576 3.572 1.714 1.858 69777 4.06 18.031 4.435 13.597 3.572 1.736 1.836 70027 4.02 18.044 1.982 16.061 3.572 1.180 2.392 70152 4.59 17.862 2.688 15.173 3.561 1.350 2.212 70402 3.88 18.085 3.226 14.860 3.574 1.464 2.110 70527 4.13 18.008 3.138 14.869 3.571 1.465 2.105 70652 3.74 18.131 3.109 15.023 3.576 1.462 2.113 70777 4.13 18.008 3.166 14.842 3.571 1.445 2.126 71027 4.13 18.008 3.062 14.946 3.571 1.438 2.132 71152 4.49 17.895 2.996 14.898 3.564 1.433 2.131 71277 4.13 18.009 2.960 15.049 3.571 1.431 2.140 71402 4.18 17.992 2.982 15.009 3.570 1.456 2.114 71652 4.49 17.895 3.422 14.472 3.564 1.540 2.024 71777 4.13 18.008 3.335 14.673 3.571 1.540 2.031 71902 3.44 18.221 3.532 14.689 3.578 1.555 2.023 72277 4.13 18.008 3.545 14.463 3.571 1.558 2.013 72402 3.25 18.279 3.635 14.644 3.578 1.570 2.008 72527 4.12 18.011 3.788 14.223 3.571 1.602 1.969 72652 3.30 18.264 5.305 12.959 3.578 1.849 1.729 72902 2.21 18.578 10.176 8.402 3.569 2.543 1.026 73027 2.18 18.588 11.707 6.880 3.569 2.739 0.829 73152 2.03 18.629 10.811 7.818 3.566 2.641 0.925 73277 2.66 18.452 10.188 8.264 3.575 2.562 1.014 73527 3.80 18.112 6.134 11.978 3.575 1.976 1.599 73652 3.88 18.085 5.802 12.283 3.574 1.929 1.645 73777 3.98 18.056 5.167 12.889 3.573 1.828 1.745 73902 4.08 18.023 4.491 13.533 3.571 1.729 1.843 74152 4.24 17.976 3.598 14.378 3.569 1.564 2.005 74277 4.13 18.008 3.158 14.851 3.571 1.472 2.099 74402 3.69 18.146 3.146 15.000 3.576 1.470 2.106 74527 4.13 18.010 3.069 14.941 3.571 1.435 2.136 74777 4.13 18.008 3.220 14.788 3.571 1.502 2.069 74902 4.13 18.007 3.381 14.626 3.571 1.545 2.026 75027 4.13 18.008 3.244 14.764 3.571 1.527 2.043 75152 3.79 18.116 3.406 14.710 3.575 1.554 2.021 75402 4.13 18.007 3.389 14.619 3.571 1.536 2.034 75527 4.10 18.017 4.095 13.922 3.571 1.657 1.914 75652 3.54 18.191 2.872 15.319 3.577 1.414 2.163 76027 4.12 18.012 3.002 15.009 3.571 1.428 2.143 76152 4.08 18.023 3.661 14.362 3.571 1.572 2.000 76277 4.13 18.008 3.344 14.664 3.571 1.520 2.050 76402 3.69 18.146 3.432 14.715 3.576 1.538 2.039 76652 4.29 17.960 3.302 14.657 3.568 1.470 2.098 76777 4.10 18.018 2.758 15.260 3.571 1.372 2.199 76902 3.98 18.054 2.967 15.088 3.573 1.382 2.191 77027 4.13 18.008 3.491 14.517 3.571 1.519 2.052 77277 4.07 18.029 2.570 15.459 3.572 1.307 2.264 77402 4.24 17.976 4.732 13.244 3.569 1.697 1.872 77527 3.39 18.237 8.057 10.180 3.578 2.217 1.361 77652 2.73 18.433 9.809 8.623 3.576 2.471 1.105 77902 3.69 18.146 8.880 9.266 3.576 2.322 1.254 78027 3.52 18.197 7.441 10.756 3.577 2.141 1.436 78152 3.25 18.279 7.618 10.661 3.578 2.190 1.388 78277 4.13 18.009 3.769 14.240 3.571 1.594 1.977 78527 4.12 18.011 3.844 14.167 3.571 1.561 2.010 78652 3.69 18.146 3.057 15.089 3.576 1.397 2.179 78777 4.12 18.011 3.886 14.125 3.571 1.579 1.992 78902 3.64 18.161 4.227 13.934 3.576 1.661 1.915 79152 4.24 17.976 2.863 15.112 3.569 1.364 2.205 79277 4.02 18.045 4.872 13.173 3.572 1.795 1.777 79402 3.59 18.176 4.819 13.357 3.577 1.784 1.793 79777 4.13 18.010 3.701 14.309 3.571 1.604 1.967 79902 3.64 18.161 3.853 14.308 3.576 1.643 1.933 80027 4.06 18.031 4.560 13.471 3.572 1.746 1.826 80152 4.03 18.039 3.124 14.915 3.572 1.519 2.053 80402 4.34 17.944 3.087 14.856 3.567 1.490 2.077 80527 4.13 18.009 3.137 14.872 3.571 1.510 2.061 80652 3.79 18.116 2.966 15.150 3.575 1.477 2.099 80777 4.12 18.010 2.947 15.064 3.571 1.478 2.093 81027 4.11 18.014 2.811 15.204 3.571 1.448 2.123 81152 4.24 17.976 2.907 15.068 3.569 1.441 2.127 81277 4.11 18.015 2.804 15.211 3.571 1.445 2.126 81402 4.39 17.927 2.804 15.123 3.566 1.443 2.123 81652 4.34 17.944 2.660 15.284 3.567 1.442 2.125 81777 4.11 18.015 2.802 15.213 3.571 1.452 2.119 81902 4.13 18.007 2.788 15.219 3.571 1.449 2.121 82027 4.11 18.016 2.784 15.232 3.571 1.445 2.126 82277 4.12 18.012 2.871 15.141 3.571 1.480 2.090 82402 4.29 17.960 2.561 15.399 3.568 1.411 2.157 82527 4.09 18.020 2.601 15.419 3.571 1.382 2.189 82652 4.13 18.007 2.873 15.134 3.571 1.467 2.103 82902 4.29 17.960 3.201 14.759 3.568 1.530 2.038 83027 4.13 18.009 3.170 14.839 3.571 1.528 2.043 83152 3.49 18.206 4.277 13.929 3.577 1.730 1.848 83527 4.11 18.016 4.045 13.971 3.571 1.675 1.897 83652 3.69 18.146 4.123 14.024 3.576 1.692 1.884 83777 4.09 18.022 4.281 13.742 3.571 1.716 1.855 83902 3.88 18.085 4.453 13.633 3.574 1.735 1.839 84152 4.49 17.895 4.393 13.502 3.564 1.732 1.832 84277 4.08 18.025 4.341 13.683 3.571 1.721 1.850 84402 3.98 18.054 4.278 13.777 3.573 1.720 1.853 84527 4.08 18.026 4.344 13.682 3.572 1.729 1.843 84777 4.07 18.026 4.363 13.664 3.572 1.726 1.846 84902 3.98 18.054 4.484 13.571 3.573 1.742 1.831 85027 4.08 18.026 4.394 13.632 3.572 1.725 1.847 85152 3.93 18.070 4.399 13.671 3.574 1.740 1.834 85402 4.29 17.960 4.598 13.362 3.568 1.757 1.811 85527 4.07 18.029 4.549 13.480 3.572 1.739 1.833 85652 3.79 18.116 4.490 13.626 3.575 1.738 1.837 85777 4.07 18.026 4.463 13.564 3.572 1.730 1.841 86027 4.06 18.030 4.547 13.483 3.572 1.738 1.834 86152 3.64 18.161 4.613 13.549 3.576 1.760 1.817 86277 4.05 18.034 4.577 13.457 3.572 1.759 1.812 86402 4.03 18.039 4.721 13.318 3.572 1.783 1.789 86652 4.24 17.976 5.055 12.920 3.569 1.811 1.758 86777 3.89 18.083 5.680 12.403 3.574 1.891 1.683 86902 3.35 18.250 5.699 12.550 3.578 1.899 1.679 87277 1.33 18.819 14.383 4.436 3.547 3.045 0.502 87402 2.45 18.513 13.465 5.048 3.573 2.899 0.673 87527 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87652 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000