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 07 04 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. To calculate HCFC-22 ALIAS CH4 was used. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 65201 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65326 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65451 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65826 1.41 18.840 13.818 5.022 3.544 2.955 0.589 65951 1.77 18.744 12.476 6.268 3.555 2.803 0.752 66076 2.10 18.653 11.329 7.325 3.564 2.692 0.871 66201 2.47 18.550 10.287 8.263 3.571 2.545 1.026 66451 3.12 18.366 8.485 9.881 3.577 2.297 1.280 66576 2.52 18.536 9.749 8.787 3.572 2.492 1.079 66701 3.47 18.260 7.514 10.746 3.578 2.174 1.404 66826 1.75 18.749 10.817 7.933 3.555 2.664 0.890 67076 4.56 17.924 5.463 12.461 3.566 1.850 1.716 67201 5.07 17.757 3.794 13.963 3.553 1.527 2.026 67326 4.71 17.875 5.163 12.712 3.562 1.809 1.754 67451 4.13 18.060 5.802 12.258 3.573 1.947 1.626 67701 4.82 17.840 4.373 13.467 3.560 1.647 1.913 67826 5.13 17.740 3.744 13.996 3.551 1.485 2.066 67951 5.03 17.772 3.939 13.833 3.554 1.557 1.997 68326 5.29 17.688 4.185 13.503 3.546 1.597 1.949 68451 4.58 17.918 4.895 13.023 3.565 1.769 1.797 68576 4.36 17.988 5.286 12.703 3.570 1.861 1.708 68701 4.59 17.915 4.897 13.018 3.565 1.770 1.796 68951 4.78 17.853 4.596 13.257 3.561 1.694 1.866 69076 4.76 17.858 4.584 13.275 3.561 1.690 1.871 69201 4.76 17.859 4.458 13.401 3.561 1.712 1.850 69576 5.18 17.723 4.271 13.451 3.550 1.606 1.944 69701 4.67 17.890 4.715 13.174 3.563 1.723 1.841 69826 4.61 17.908 4.545 13.363 3.565 1.690 1.874 69951 4.78 17.853 4.496 13.357 3.561 1.676 1.884 70201 4.57 17.921 4.970 12.951 3.566 1.772 1.794 70451 4.49 17.946 5.113 12.833 3.567 1.805 1.762 70576 4.41 17.973 5.186 12.786 3.569 1.815 1.754 70826 4.11 18.067 5.352 12.715 3.573 1.852 1.722 70951 4.01 18.096 6.196 11.900 3.575 2.007 1.568 71076 3.52 18.247 7.056 11.191 3.578 2.163 1.415 71201 3.67 18.200 6.962 11.238 3.577 2.134 1.443 71451 3.77 18.169 6.659 11.510 3.577 2.094 1.483 71576 3.96 18.113 6.312 11.801 3.575 2.047 1.528 71701 3.95 18.115 6.224 11.891 3.575 2.026 1.550 71826 4.11 18.067 6.111 11.956 3.573 2.008 1.566 72076 4.06 18.082 5.807 12.276 3.574 1.952 1.622 72201 4.25 18.023 5.607 12.416 3.571 1.903 1.668 72326 4.51 17.940 5.483 12.457 3.567 1.879 1.688 72701 4.39 17.977 5.336 12.641 3.569 1.846 1.723 72826 3.76 18.173 5.268 12.905 3.577 1.834 1.743 72951 4.41 17.972 5.257 12.715 3.569 1.841 1.728 73076 4.92 17.808 5.282 12.526 3.557 1.841 1.716 73326 4.11 18.067 4.975 13.092 3.573 1.798 1.775 73451 4.49 17.946 5.108 12.839 3.567 1.808 1.760 73576 4.21 18.036 5.005 13.031 3.572 1.802 1.770 73701 4.57 17.921 4.904 13.017 3.566 1.778 1.788 73951 4.50 17.942 5.074 12.869 3.567 1.802 1.765 74076 4.46 17.956 4.939 13.017 3.568 1.781 1.787 74201 4.62 17.905 4.825 13.081 3.565 1.758 1.806 74326 4.56 17.924 5.021 12.903 3.566 1.790 1.775 74576 4.41 17.973 4.797 13.176 3.569 1.751 1.818 74701 4.64 17.899 4.777 13.122 3.564 1.743 1.821 74826 4.56 17.924 4.580 13.344 3.566 1.703 1.863 74951 4.77 17.856 4.500 13.356 3.561 1.689 1.872 75201 4.69 17.882 4.693 13.189 3.563 1.722 1.841 75326 4.87 17.825 4.769 13.056 3.559 1.733 1.826 75451 4.61 17.906 4.889 13.017 3.565 1.755 1.810 75576 4.31 18.004 5.017 12.988 3.570 1.786 1.784 75826 5.29 17.688 4.716 12.972 3.546 1.720 1.826 75951 4.77 17.855 4.535 13.320 3.561 1.678 1.883 76076 5.08 17.757 4.699 13.058 3.553 1.702 1.851 76451 4.63 17.903 4.890 13.013 3.564 1.733 1.831 76576 4.92 17.808 5.342 12.466 3.557 1.825 1.733 76701 4.44 17.961 5.249 12.711 3.568 1.811 1.757 76826 4.56 17.924 5.216 12.708 3.566 1.794 1.772 77076 3.71 18.188 7.283 10.906 3.577 2.143 1.435 77201 2.05 18.668 11.541 7.126 3.562 2.719 0.843 77326 2.94 18.416 9.132 9.284 3.576 2.395 1.182 77451 2.91 18.425 9.190 9.235 3.576 2.384 1.192 77701 2.23 18.618 11.174 7.445 3.566 2.635 0.931 77826 1.09 18.923 14.323 4.600 3.532 3.002 0.530 77951 1.38 18.848 14.001 4.847 3.543 2.943 0.599 78076 2.43 18.562 12.148 6.415 3.570 2.765 0.805 78326 4.21 18.036 6.776 11.260 3.572 2.010 1.562 78451 1.95 18.695 11.878 6.817 3.560 2.743 0.817 78576 2.07 18.664 11.599 7.065 3.563 2.745 0.817 78701 3.36 18.293 7.877 10.416 3.578 2.219 1.359 78951 4.35 17.990 5.455 12.536 3.570 1.851 1.719 79076 4.21 18.036 5.484 12.552 3.572 1.865 1.707 79201 4.43 17.964 5.239 12.725 3.568 1.832 1.737 79326 4.36 17.988 5.215 12.773 3.570 1.827 1.742 79576 4.06 18.082 4.947 13.136 3.574 1.792 1.782 79701 4.63 17.903 4.810 13.093 3.564 1.750 1.814 79826 4.87 17.825 4.324 13.502 3.559 1.661 1.898 80201 4.89 17.818 4.245 13.573 3.558 1.646 1.912 80326 4.71 17.875 4.331 13.544 3.562 1.669 1.893 80451 4.73 17.869 4.549 13.320 3.562 1.713 1.849 80576 4.06 18.082 5.434 12.648 3.574 1.880 1.694 80826 4.41 17.973 4.469 13.503 3.569 1.709 1.860 80951 4.59 17.916 4.831 13.084 3.565 1.773 1.793 81076 4.82 17.842 4.040 13.802 3.560 1.627 1.932 81201 5.06 17.763 3.875 13.888 3.553 1.585 1.969 81451 5.27 17.694 3.431 14.262 3.547 1.499 2.047 81576 4.92 17.808 3.631 14.177 3.557 1.543 2.014 81701 5.13 17.739 3.718 14.020 3.551 1.545 2.006 81826 5.02 17.774 3.941 13.833 3.554 1.591 1.963 82076 4.92 17.808 3.531 14.278 3.557 1.517 2.040 82201 5.27 17.694 3.435 14.259 3.547 1.498 2.049 82326 5.44 17.635 3.288 14.347 3.540 1.472 2.069 82451 5.30 17.682 3.372 14.309 3.545 1.482 2.064 82701 5.49 17.619 3.031 14.589 3.539 1.401 2.137 82826 5.66 17.562 2.508 15.054 3.532 1.240 2.292 82951 6.13 17.399 1.907 15.492 3.511 1.028 2.484 83076 5.71 17.544 2.110 15.434 3.530 1.059 2.471 83326 5.77 17.526 2.041 15.485 3.528 1.045 2.483 83451 6.20 17.377 1.792 15.586 3.508 0.992 2.516 83576 5.71 17.544 2.456 15.088 3.530 1.198 2.332 83951 6.39 17.311 1.489 15.822 3.498 0.890 2.608 84076 5.66 17.562 2.225 15.337 3.532 1.157 2.375 84201 5.42 17.642 3.101 14.541 3.541 1.452 2.089 84326 5.39 17.652 3.358 14.294 3.542 1.518 2.024 84576 5.23 17.705 3.260 14.445 3.548 1.500 2.048 84701 5.44 17.637 3.096 14.541 3.541 1.463 2.078 84826 5.34 17.670 3.005 14.665 3.544 1.458 2.086 84951 5.46 17.630 3.074 14.557 3.540 1.433 2.107 85201 5.82 17.508 2.392 15.115 3.526 1.249 2.276 85326 5.02 17.774 2.971 14.804 3.554 1.434 2.120 85451 5.53 17.605 2.912 14.693 3.537 1.410 2.127 85576 5.39 17.652 3.100 14.552 3.542 1.484 2.059 85826 5.18 17.723 3.162 14.561 3.550 1.506 2.044 85951 5.33 17.674 3.274 14.400 3.545 1.510 2.035 86076 4.87 17.825 3.257 14.568 3.559 1.529 2.030 86201 5.30 17.684 3.335 14.349 3.546 1.524 2.022 86451 5.25 17.700 3.435 14.265 3.547 1.543 2.004 86576 5.13 17.740 3.559 14.181 3.551 1.584 1.968 86701 5.20 17.717 3.526 14.190 3.549 1.560 1.989 86826 5.23 17.705 3.568 14.137 3.548 1.586 1.962 87076 4.66 17.891 4.877 13.015 3.564 1.789 1.775 87201 3.49 18.254 7.455 10.799 3.578 2.188 1.390 87326 2.57 18.523 10.480 8.043 3.572 2.630 0.943 87701 2.28 18.604 11.016 7.588 3.567 2.616 0.951 87826 2.76 18.470 10.810 7.661 3.575 2.594 0.981 87951 2.79 18.461 9.503 8.958 3.575 2.418 1.156 88076 4.76 17.858 6.560 11.298 3.561 1.958 1.603 88326 3.52 18.247 8.168 10.079 3.578 2.288 1.290 88451 3.87 18.140 6.560 11.579 3.576 2.031 1.544 88576 4.36 17.988 4.835 13.154 3.570 1.760 1.810 88701 4.61 17.907 4.834 13.073 3.565 1.765 1.800 88951 5.20 17.716 3.552 14.164 3.549 1.550 1.999 89076 6.21 17.374 1.802 15.573 3.508 0.974 2.534 89201 5.26 17.697 3.398 14.299 3.547 1.509 2.038 89326 4.92 17.808 3.503 14.305 3.557 1.520 2.037 89576 5.08 17.757 3.192 14.565 3.553 1.445 2.108 89701 5.92 17.473 2.250 15.222 3.521 1.153 2.368 89826 6.15 17.394 1.602 15.792 3.510 0.912 2.599 89951 6.10 17.411 1.936 15.475 3.513 1.052 2.461 90201 5.80 17.516 2.436 15.079 3.527 1.232 2.294 90326 5.23 17.705 2.972 14.733 3.548 1.388 2.160 90451 5.95 17.461 2.163 15.299 3.520 1.143 2.377 90576 5.66 17.562 2.275 15.287 3.532 1.162 2.371 90826 6.77 17.175 1.338 15.837 3.477 0.810 2.667 90951 6.18 17.384 1.805 15.578 3.509 1.054 2.455 91076 4.97 17.791 3.311 14.481 3.556 1.531 2.025 91451 5.15 17.732 3.644 14.088 3.550 1.566 1.985 91576 5.77 17.526 3.376 14.150 3.528 1.439 2.089 91701 2.56 18.525 9.893 8.633 3.572 2.518 1.054 91826 3.13 18.361 9.832 8.529 3.577 2.506 1.071 92076 3.32 18.305 10.333 7.971 3.578 2.522 1.056 92201 2.34 18.588 10.916 7.671 3.569 2.591 0.978 92326 2.48 18.549 12.266 6.283 3.571 2.765 0.805 92451 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92701 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92826 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92951 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000