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 09 18 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 64129 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64254 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64379 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64754 1.55 18.857 14.605 4.252 3.542 3.031 0.510 64879 1.75 18.806 13.873 4.933 3.548 2.952 0.596 65004 2.12 18.706 12.541 6.166 3.559 2.798 0.761 65129 1.97 18.747 13.092 5.655 3.555 2.865 0.690 65378 1.82 18.785 13.631 5.154 3.551 2.921 0.630 65504 2.79 18.520 10.151 8.369 3.572 2.482 1.090 65629 3.37 18.352 8.503 9.849 3.578 2.257 1.321 65754 2.84 18.507 9.589 8.918 3.573 2.409 1.164 66003 3.35 18.357 9.542 8.815 3.578 2.402 1.175 66129 3.68 18.262 7.533 10.729 3.578 2.120 1.458 66254 3.83 18.214 6.922 11.292 3.577 1.995 1.583 66379 4.30 18.072 5.761 12.311 3.574 1.829 1.745 66628 4.36 18.052 5.591 12.461 3.573 1.804 1.769 66754 3.69 18.258 6.466 11.792 3.578 1.916 1.662 66879 4.18 18.107 6.103 12.004 3.575 1.900 1.675 67254 4.43 18.032 5.591 12.441 3.572 1.772 1.800 67379 4.40 18.040 5.473 12.568 3.572 1.786 1.786 67504 4.53 18.000 5.577 12.424 3.570 1.762 1.808 67629 4.46 18.022 5.306 12.716 3.571 1.747 1.824 67878 4.49 18.013 5.188 12.825 3.571 1.733 1.838 68003 5.04 17.838 4.861 12.976 3.560 1.633 1.926 68129 4.61 17.973 4.821 13.152 3.569 1.671 1.898 68503 4.93 17.871 4.306 13.565 3.562 1.542 2.020 68628 4.83 17.905 4.225 13.680 3.565 1.567 1.998 68754 4.63 17.968 4.392 13.576 3.569 1.560 2.008 68879 4.67 17.956 4.689 13.268 3.568 1.648 1.919 69129 4.85 17.896 4.122 13.774 3.564 1.572 1.992 69378 4.67 17.956 4.669 13.288 3.568 1.670 1.898 69504 4.58 17.984 5.124 12.861 3.569 1.734 1.835 69754 4.93 17.871 4.795 13.076 3.562 1.670 1.893 69879 5.00 17.849 3.671 14.178 3.560 1.505 2.056 70003 5.56 17.666 3.141 14.525 3.544 1.372 2.172 70129 4.91 17.877 3.903 13.974 3.563 1.546 2.017 70379 5.25 17.768 2.997 14.771 3.554 1.349 2.204 70503 5.35 17.735 3.034 14.702 3.551 1.330 2.221 70629 5.24 17.770 2.999 14.771 3.554 1.328 2.226 70754 5.45 17.701 3.640 14.061 3.547 1.427 2.120 71004 5.61 17.648 2.484 15.164 3.542 1.229 2.313 71128 5.40 17.720 2.588 15.132 3.549 1.254 2.295 71253 5.88 17.558 2.568 14.990 3.532 1.243 2.289 71629 5.32 17.745 2.835 14.910 3.552 1.313 2.238 71754 5.99 17.521 2.896 14.625 3.527 1.319 2.208 71878 5.35 17.735 2.704 15.031 3.551 1.284 2.266 72003 5.51 17.683 2.847 14.836 3.546 1.276 2.270 72254 5.35 17.735 2.716 15.020 3.551 1.247 2.304 72379 5.31 17.747 2.807 14.940 3.552 1.297 2.255 72503 5.88 17.558 2.851 14.706 3.532 1.277 2.255 72629 4.74 17.933 4.441 13.492 3.566 1.624 1.942 72879 4.64 17.963 4.720 13.243 3.568 1.659 1.909 73004 3.93 18.184 5.363 12.822 3.577 1.774 1.803 73129 4.27 18.080 5.716 12.364 3.574 1.858 1.716 73254 4.03 18.155 5.201 12.954 3.576 1.744 1.832 73504 5.04 17.838 4.000 13.837 3.560 1.522 2.038 73629 4.92 17.877 3.889 13.988 3.563 1.538 2.025 73754 4.63 17.968 3.796 14.172 3.569 1.490 2.078 73878 4.94 17.867 3.853 14.015 3.562 1.505 2.057 74129 4.83 17.903 4.182 13.721 3.564 1.567 1.997 74254 4.33 18.063 4.227 13.836 3.573 1.558 2.016 74379 4.88 17.888 4.029 13.858 3.563 1.548 2.015 74503 4.78 17.920 3.969 13.951 3.566 1.519 2.047 74754 4.88 17.887 3.448 14.439 3.563 1.440 2.123 74879 5.04 17.836 3.590 14.247 3.559 1.470 2.090 75004 4.73 17.936 3.119 14.818 3.567 1.391 2.176 75379 5.15 17.801 3.269 14.532 3.557 1.412 2.144 75504 4.93 17.871 3.310 14.561 3.562 1.400 2.162 75629 5.31 17.748 2.805 14.943 3.552 1.304 2.247 75754 4.78 17.920 3.020 14.900 3.566 1.332 2.233 76004 5.14 17.804 2.956 14.848 3.557 1.320 2.237 76129 5.28 17.760 2.916 14.844 3.553 1.337 2.216 76254 5.14 17.804 2.584 15.220 3.557 1.247 2.310 76379 5.42 17.712 2.503 15.209 3.548 1.241 2.308 76628 5.49 17.689 2.337 15.353 3.546 1.199 2.347 76754 5.51 17.683 2.250 15.434 3.546 1.165 2.380 76879 5.48 17.693 2.383 15.310 3.547 1.208 2.338 77004 5.30 17.753 2.745 15.007 3.552 1.298 2.254 77253 5.24 17.770 2.728 15.042 3.554 1.290 2.264 77379 5.39 17.723 2.617 15.105 3.550 1.271 2.279 77504 5.09 17.821 2.541 15.280 3.558 1.246 2.312 77629 5.39 17.723 2.617 15.105 3.550 1.274 2.276 77878 5.33 17.741 2.743 14.997 3.551 1.312 2.239 78004 5.88 17.558 2.821 14.736 3.532 1.306 2.225 78129 5.32 17.745 2.795 14.950 3.552 1.320 2.232 78254 5.83 17.576 2.906 14.670 3.534 1.306 2.228 78504 4.93 17.871 4.182 13.689 3.562 1.510 2.052 78629 4.64 17.965 4.740 13.225 3.568 1.650 1.919 78754 4.13 18.124 7.017 11.107 3.575 1.999 1.576 79128 2.05 18.724 12.723 6.000 3.557 2.817 0.740 79253 1.97 18.746 13.563 5.184 3.555 2.944 0.611 79379 2.27 18.665 11.979 6.686 3.563 2.721 0.841 79504 2.33 18.648 10.801 7.847 3.564 2.581 0.983 79753 3.79 18.229 7.810 10.419 3.578 2.143 1.434 79878 3.46 18.327 8.176 10.151 3.578 2.212 1.366 80004 4.53 18.000 6.667 11.333 3.570 1.954 1.616 80129 4.35 18.054 5.556 12.498 3.573 9999.000 9999.000 80378 4.87 17.890 3.987 13.903 3.563 1.544 2.019 80503 4.33 18.063 4.167 13.896 3.573 1.555 2.018 80629 5.06 17.830 3.527 14.304 3.559 1.460 2.099 80754 5.30 17.753 3.263 14.490 3.552 1.399 2.153 81003 5.40 17.718 2.926 14.792 3.549 1.329 2.220 81129 5.24 17.770 3.009 14.761 3.554 1.359 2.195 81254 5.30 17.753 3.357 14.395 3.552 1.412 2.140 81379 5.13 17.809 3.313 14.495 3.557 1.422 2.135 81629 5.11 17.814 3.367 14.446 3.558 1.424 2.134 81754 5.35 17.735 3.118 14.618 3.551 1.373 2.178 81879 5.42 17.714 2.495 15.219 3.549 1.271 2.278 82004 5.51 17.683 2.611 15.072 3.546 1.281 2.264 82254 5.77 17.594 2.172 15.422 3.536 9999.000 9999.000 82378 5.56 17.665 2.163 15.502 3.544 1.189 2.355 82503 5.45 17.701 2.129 15.571 3.547 1.192 2.356 82879 5.52 17.677 2.194 15.483 3.545 1.212 2.333 83003 5.77 17.594 1.845 15.749 3.536 1.100 2.436 83128 5.76 17.597 1.614 15.983 3.536 1.034 2.503 83254 5.72 17.612 1.668 15.944 3.538 1.057 2.481 83504 5.83 17.576 1.671 15.905 3.534 1.066 2.468 83629 5.74 17.606 1.681 15.924 3.537 1.084 2.453 83753 6.15 17.465 1.930 15.535 3.520 1.153 2.367 83878 5.64 17.639 1.923 15.716 3.541 1.148 2.393 84129 5.58 17.658 2.072 15.586 3.543 1.157 2.386 84254 5.56 17.666 1.965 15.701 3.544 1.128 2.416 84379 5.62 17.646 1.979 15.667 3.542 1.135 2.407 84504 5.51 17.683 1.798 15.885 3.546 1.107 2.439 84754 5.61 17.648 1.568 16.080 3.542 1.040 2.502 84879 5.60 17.653 2.039 15.614 3.542 1.156 2.387 85003 5.35 17.735 2.334 15.401 3.551 1.211 2.340 85128 5.55 17.670 2.196 15.474 3.544 1.177 2.367 85379 5.17 17.794 3.188 14.606 3.556 1.431 2.125 85504 4.93 17.871 3.461 14.410 3.562 1.467 2.095 85628 5.22 17.778 3.067 14.712 3.555 1.378 2.177 85753 5.09 17.821 2.872 14.949 3.558 1.341 2.217 86004 5.30 17.753 2.969 14.784 3.552 1.361 2.191 86129 5.23 17.773 3.030 14.743 3.554 1.383 2.172 86254 5.14 17.804 2.692 15.112 3.557 1.306 2.251 86629 5.40 17.718 2.586 15.132 3.549 1.280 2.269 86754 5.61 17.648 2.625 15.023 3.542 1.276 2.266 86879 5.38 17.726 2.591 15.135 3.550 1.291 2.259 87004 5.61 17.648 2.507 15.141 3.542 1.263 2.279 87254 5.35 17.735 2.696 15.040 3.551 1.294 2.257 87379 5.37 17.727 2.629 15.099 3.550 1.288 2.262 87504 5.45 17.701 2.674 15.027 3.547 1.286 2.261 87628 5.39 17.721 2.596 15.125 3.549 1.278 2.271 87879 5.40 17.718 2.566 15.152 3.549 1.273 2.276 88004 5.56 17.666 2.414 15.251 3.544 1.242 2.302 88129 5.39 17.723 2.567 15.155 3.550 1.283 2.267 88253 5.35 17.735 2.564 15.172 3.551 1.269 2.281 88504 5.67 17.630 2.446 15.184 3.540 1.245 2.295 88629 5.39 17.722 2.589 15.132 3.549 1.281 2.268 88754 5.61 17.648 2.417 15.230 3.542 1.224 2.318 88879 5.42 17.713 2.521 15.192 3.549 1.254 2.294 89129 5.33 17.742 2.765 14.977 3.551 1.303 2.249 89254 5.24 17.770 2.510 15.260 3.554 1.235 2.319 89379 5.48 17.692 2.362 15.330 3.546 1.219 2.327 89504 5.09 17.821 2.401 15.420 3.558 1.217 2.341 89753 4.83 17.904 3.467 14.437 3.564 1.425 2.140 89879 4.69 17.949 4.573 13.376 3.567 1.629 1.938 90004 3.93 18.184 5.676 12.509 3.577 1.793 1.784 90379 2.63 18.564 10.831 7.733 3.570 2.579 0.991 90504 1.22 18.942 12.602 6.341 3.529 2.824 0.705 90629 2.61 18.571 10.818 7.754 3.570 2.592 0.977 90754 1.57 18.852 11.918 6.934 3.542 2.726 0.816 91003 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 91129 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 91254 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000