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 22 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 54929 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55054 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55179 9999.00 9999.000 17.937 9999.000 9999.000 3.319 9999.000 55304 -0.00 19.144 17.677 1.467 3.489 3.313 0.176 55554 0.36 19.057 16.637 2.421 3.508 3.213 0.295 55679 1.05 18.880 15.461 3.419 3.538 3.097 0.441 55804 0.88 18.926 15.291 3.635 3.531 3.069 0.463 55929 1.41 18.788 14.535 4.252 3.550 3.000 0.551 56179 1.50 18.764 13.225 5.539 3.553 2.869 0.684 56304 1.81 18.679 12.685 5.994 3.562 2.809 0.753 56429 1.76 18.692 12.125 6.567 3.560 2.731 0.830 56554 2.14 18.587 11.819 6.768 3.569 2.687 0.881 56804 3.81 18.097 6.206 11.891 3.575 1.866 1.709 56929 3.84 18.086 4.293 13.793 3.574 1.518 2.056 57054 3.30 18.252 8.577 9.675 3.578 2.226 1.352 57429 2.68 18.433 10.427 8.006 3.576 2.503 1.073 57554 2.70 18.429 10.335 8.094 3.576 2.505 1.071 57679 2.92 18.364 10.342 8.023 3.577 2.499 1.079 57804 2.72 18.423 10.300 8.123 3.576 2.506 1.070 58054 2.65 18.443 10.470 7.973 3.576 2.529 1.046 58179 2.73 18.420 10.758 7.662 3.576 2.556 1.021 58304 2.93 18.363 9.710 8.652 3.577 2.424 1.153 58679 3.26 18.265 9.155 9.110 3.578 2.317 1.261 58804 3.19 18.285 8.955 9.329 3.578 2.299 1.279 58929 3.65 18.147 8.899 9.248 3.576 2.287 1.289 59054 3.23 18.272 8.813 9.459 3.578 2.286 1.292 59304 2.80 18.399 10.020 8.379 3.577 2.471 1.106 59554 2.31 18.541 11.379 7.162 3.571 2.642 0.929 59679 2.59 18.460 12.050 6.411 3.575 2.730 0.845 59929 2.36 18.527 12.402 6.124 3.572 2.787 0.785 60054 2.55 18.472 10.768 7.704 3.575 2.569 1.005 60179 2.59 18.460 11.010 7.450 3.575 2.603 0.972 60304 2.46 18.498 11.083 7.415 3.573 2.604 0.969 60554 2.77 18.408 10.134 8.274 3.577 2.488 1.089 60679 2.36 18.527 10.089 8.437 3.572 2.470 1.102 60804 2.99 18.345 9.574 8.772 3.578 2.400 1.178 60929 2.45 18.500 9.467 9.033 3.573 2.392 1.181 61179 2.83 18.392 8.657 9.735 3.577 2.280 1.297 61304 3.20 18.281 8.835 9.446 3.578 2.310 1.268 61429 3.26 18.265 8.210 10.055 3.578 2.205 1.373 61804 3.17 18.290 8.913 9.377 3.578 2.319 1.259 61929 3.16 18.294 9.081 9.213 3.578 2.339 1.239 62054 3.35 18.237 8.308 9.930 3.578 2.240 1.338 62179 3.79 18.101 7.467 10.635 3.575 2.113 1.462 62429 3.94 18.055 7.460 10.596 3.573 2.085 1.488 62554 3.18 18.287 8.939 9.348 3.578 2.317 1.261 62679 3.02 18.336 9.629 8.707 3.578 2.409 1.169 62804 3.39 18.226 8.219 10.007 3.578 2.215 1.363 63054 3.25 18.268 8.707 9.560 3.578 2.283 1.295 63179 3.06 18.322 9.383 8.940 3.578 2.371 1.206 63304 3.26 18.264 8.672 9.592 3.578 2.278 1.300 63429 3.55 18.177 6.904 11.273 3.577 2.017 1.560 63679 3.30 18.251 7.447 10.804 3.578 2.093 1.485 63804 3.42 18.215 8.010 10.205 3.578 2.199 1.378 63929 3.21 18.279 8.323 9.956 3.578 2.233 1.346 64054 3.34 18.241 8.352 9.889 3.578 2.246 1.332 64304 3.30 18.253 8.523 9.730 3.578 2.276 1.302 64429 3.40 18.221 8.748 9.473 3.578 2.299 1.278 64554 3.17 18.292 8.931 9.361 3.578 2.342 1.236 64679 3.06 18.322 9.221 9.101 3.578 2.354 1.224 64929 2.73 18.420 10.388 8.031 3.576 2.503 1.073 65054 2.82 18.395 10.032 8.363 3.577 2.468 1.109 65179 2.59 18.460 10.605 7.855 3.575 2.564 1.011 65554 2.70 18.430 10.312 8.118 3.576 2.512 1.064 65679 2.59 18.460 10.302 8.158 3.575 2.515 1.060 65804 2.77 18.409 10.107 8.303 3.577 2.488 1.089 65929 2.64 18.447 9.871 8.576 3.575 2.453 1.122 66179 2.45 18.500 10.356 8.144 3.573 2.530 1.044 66304 2.56 18.468 10.661 7.807 3.575 2.571 1.003 66429 2.40 18.513 11.061 7.452 3.573 2.615 0.958 66554 2.36 18.526 11.188 7.338 3.572 2.633 0.940 66804 2.26 18.555 11.384 7.171 3.571 2.672 0.899 66929 1.90 18.654 11.384 7.271 3.564 2.677 0.887 67054 2.21 18.567 11.556 7.012 3.570 2.689 0.881 67179 1.67 18.716 11.465 7.251 3.558 2.700 0.858 67429 2.04 18.617 11.408 7.209 3.567 2.688 0.879 67554 2.06 18.611 12.013 6.598 3.567 2.732 0.835 67679 2.04 18.617 12.082 6.535 3.567 2.750 0.816 67804 2.32 18.537 11.361 7.176 3.572 2.657 0.915 68054 0.67 18.980 15.676 3.304 3.522 3.145 0.377 68179 0.36 19.055 15.024 4.032 3.508 3.077 0.431 68304 0.29 19.073 16.797 2.275 3.505 3.217 0.287 68429 -0.51 19.265 16.892 2.373 3.458 3.277 0.181 68679 9999.00 9999.000 15.856 9999.000 9999.000 3.141 9999.000 68804 0.51 19.018 16.150 2.868 3.515 3.168 0.347 68929 0.15 19.107 17.214 1.893 3.497 3.287 0.210 69304 0.55 19.010 16.048 2.962 3.517 3.147 0.370 69429 2.04 18.617 13.751 4.866 3.567 2.957 0.609 69554 1.88 18.660 12.528 6.133 3.563 2.793 0.771 69679 2.54 18.474 13.510 4.963 3.574 2.939 0.635 69929 3.45 18.207 10.489 7.718 3.577 2.536 1.042 70054 3.05 18.326 9.274 9.052 3.578 2.384 1.193 70179 3.70 18.132 9.145 8.987 3.576 2.353 1.223 70304 3.05 18.325 9.288 9.037 3.578 2.373 1.205 70554 3.13 18.302 9.075 9.227 3.578 2.344 1.234 70679 2.73 18.420 9.089 9.331 3.576 2.355 1.221 70804 3.11 18.308 9.073 9.235 3.578 2.361 1.217 70929 2.68 18.433 9.316 9.117 3.576 2.373 1.203 71179 2.78 18.406 8.999 9.407 3.577 2.342 1.235 71304 3.08 18.318 9.147 9.170 3.578 2.366 1.212 71429 3.26 18.265 7.919 10.346 3.578 2.174 1.404 71554 3.51 18.188 7.669 10.519 3.577 2.157 1.420 71804 3.47 18.200 7.807 10.392 3.577 2.185 1.392 71929 3.65 18.147 6.448 11.699 3.576 1.972 1.604 72054 3.76 18.112 6.436 11.676 3.575 1.981 1.594 72179 3.94 18.055 6.453 11.602 3.573 1.974 1.599 72429 3.94 18.055 6.471 11.584 3.573 1.970 1.603 72554 3.76 18.113 6.411 11.701 3.575 1.982 1.593 72679 3.84 18.086 6.456 11.630 3.574 1.971 1.603 73054 3.69 18.135 6.870 11.265 3.576 2.042 1.533 73179 3.55 18.177 6.644 11.533 3.577 2.004 1.573 73304 3.71 18.126 6.707 11.419 3.576 2.018 1.558 73429 3.45 18.207 6.488 11.719 3.577 1.983 1.595 73679 3.94 18.055 6.178 11.877 3.573 1.927 1.646 73804 3.81 18.096 6.026 12.070 3.574 1.918 1.656 73929 4.09 18.008 5.965 12.043 3.571 1.901 1.669 74054 3.82 18.094 5.930 12.164 3.574 1.902 1.673 74304 3.83 18.090 5.868 12.221 3.574 1.895 1.680 74429 3.99 18.040 5.829 12.211 3.572 1.882 1.690 74554 3.83 18.091 5.909 12.182 3.574 1.897 1.677 74679 3.84 18.086 6.000 12.086 3.574 1.911 1.663 74929 3.89 18.071 5.349 12.722 3.574 1.809 1.764 75054 3.87 18.078 5.304 12.774 3.574 1.816 1.758 75179 4.25 17.960 5.275 12.685 3.568 1.793 1.775 75304 3.87 18.078 5.324 12.753 3.574 1.813 1.761 75554 3.88 18.076 5.211 12.865 3.574 1.797 1.777 75679 4.09 18.008 5.113 12.895 3.571 1.771 1.799 75804 3.88 18.075 5.142 12.933 3.574 1.786 1.787 75929 3.99 18.040 5.698 12.342 3.572 1.870 1.702 76179 3.84 18.086 4.904 13.182 3.574 1.747 1.827 76304 3.88 18.074 4.871 13.203 3.574 1.743 1.830 76429 3.70 18.132 4.874 13.258 3.576 1.748 1.828 76804 3.88 18.074 4.874 13.200 3.574 1.753 1.820 76929 3.89 18.071 4.721 13.350 3.574 1.722 1.852 77054 3.87 18.079 4.242 13.837 3.574 1.651 1.923 77179 3.89 18.071 4.301 13.770 3.574 1.651 1.922 77429 3.84 18.086 4.394 13.692 3.574 1.668 1.906 77554 3.88 18.076 4.478 13.597 3.574 1.684 1.889 77679 3.74 18.117 4.625 13.492 3.575 1.710 1.866 77804 3.88 18.074 4.659 13.415 3.574 1.719 1.855 78054 3.87 18.079 4.265 13.814 3.574 1.661 1.913 78179 3.79 18.101 4.221 13.880 3.575 1.646 1.929 78304 3.87 18.079 4.267 13.812 3.574 1.653 1.920 78429 3.74 18.117 4.944 13.173 3.575 1.740 1.836 78679 2.27 18.553 11.213 7.339 3.571 2.611 0.959 78804 1.99 18.629 12.285 6.343 3.566 2.748 0.818 78929 2.04 18.617 11.999 6.617 3.567 2.715 0.852 79054 1.99 18.629 12.205 6.423 3.566 2.743 0.823 79304 0.97 18.901 14.816 4.085 3.535 3.029 0.506 79429 0.48 19.026 16.252 2.774 3.514 3.192 0.322 79554 0.05 19.132 17.420 1.712 3.492 3.276 0.215 79679 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79929 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80054 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80179 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000