74 1001 ELKINS, JAMES; WAMSLEY, PAULA; HURST, DALE; ROMASHKIN, PAVEL; DUTTON, GEOFF U.S. DEPT OF COMMERCE, NOAA / CMDL / NITROUS OXIDE AND HALOCOMPOUNDS DIVISION ACATS ASHOE/MAESA 1 1 1994 11 04 1998 08 07 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) 52 Total chlorine and bromine are based on in situ measurements of organic species from either the Airborne Chromatograph for Atmospheric Trace Species (ACATS-IV) [see Elkins et al., 1996] or the Lightweight Airborne Chromatograph Experiment (LACE). Mean age of the air in years from the tropical tropopause is calculated using tropospheric trends from Geller et al., [1997] and a formula from Volk et al., [1997]. Total chlorine calculations are based on total chlorine from Montzka et al., [1996] and model generated correlations from Woodbridge et al. [1995] are used for the missing chlorine species, HCFC-22 and CH3Cl. Total bromine calculations are from Wamsley et al., [1997] where missing bromine organic species (CH3Br, halon-2402, halon-1301, CH2Cl2, and CH2BrCl) are calculated from correlations of NCAR WAS data versus CFC-11 are used. All values derived from theta < 380 were excluded, because of influence from the troposphere. All calculations of total halogen and inorganic halogen assume no inorganic input from the troposphere (Cly, Bry=0). References: 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, A. H. Hayden, J. H. Butler, T. M. Thompson, T. H. Swanson, E. J. Dlugokencky, P. C. Novelli, D. F. Hurst, J. M. Lobert, S. J. Ciciora, R. J. McLaughlin, T. L. Thompson, R. H. Winkler, P. J. Fraser, L. P. Steele and M. P. Lucarelli, 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, L. P. Steele, M. P. Lucarelli, E. L. Atlas, S. M. Schauffler, D. R. Blake, F. S. Rowland, W. T. Sturges, J. M. Lee, S. A. Penkett, A. Engel, R. M. Stimpfle, K. R. Chan, D. K. Weisenstein, M. K. W. Ko and R. J. Salawitch, 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, M. Loewenstein, J. R. Podolske, C. R. Webster, R. D. May, J. M. Gilligan, S. A. Montzka, K. A. Boering and R. J. Salawitch, 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 61588 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 61768 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 61948 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62128 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62488 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62668 0.73 18.011 16.290 1.721 3.571 3.341 0.230 62848 0.54 18.071 17.180 0.891 3.574 3.406 0.168 63028 0.71 18.017 16.360 1.657 3.571 3.357 0.215 63388 1.19 17.864 13.849 4.014 3.562 3.107 0.454 63568 1.25 17.846 13.781 4.066 3.560 3.114 0.446 63748 1.24 17.850 13.583 4.266 3.560 3.090 0.471 63928 1.30 17.829 13.496 4.334 3.559 3.082 0.477 64288 1.35 17.813 13.163 4.650 3.558 3.039 0.518 64468 1.39 17.800 12.872 4.927 3.556 3.009 0.547 64648 1.67 17.710 11.635 6.075 3.548 2.883 0.665 64828 1.77 17.675 11.290 6.385 3.545 2.822 0.723 65188 1.58 17.737 12.045 5.693 3.551 2.913 0.638 65368 1.72 17.692 11.869 5.823 3.547 2.900 0.647 65548 1.62 17.725 11.937 5.788 3.550 2.896 0.654 66088 1.61 17.727 11.706 6.021 3.550 2.878 0.672 66268 1.80 17.665 11.191 6.474 3.544 2.803 0.740 66448 1.61 17.727 11.071 6.656 3.550 2.808 0.742 66628 1.86 17.646 10.849 6.797 3.542 2.771 0.771 66988 1.96 17.613 10.591 7.022 3.538 2.731 0.807 67168 1.82 17.657 10.384 7.273 3.543 2.722 0.821 67348 2.05 17.581 10.122 7.459 3.534 2.679 0.856 67888 2.15 17.549 10.188 7.361 3.531 2.691 0.840 68068 2.20 17.531 9.753 7.778 3.529 2.600 0.928 68248 2.75 17.341 7.536 9.804 3.503 2.254 1.248 68428 2.96 17.267 7.098 10.169 3.492 2.191 1.300 68788 2.92 17.282 7.277 10.005 3.494 2.217 1.277 69148 2.36 17.475 9.049 8.426 3.521 2.516 1.005 69328 2.53 17.418 8.956 8.462 3.514 2.486 1.027 69688 2.58 17.399 8.717 8.682 3.511 2.465 1.046 69868 2.63 17.382 8.181 9.201 3.509 2.370 1.139 70048 2.86 17.301 7.239 10.062 3.497 2.190 1.307 70228 3.04 17.238 6.798 10.440 3.487 2.144 1.343 70588 3.06 17.232 6.756 10.476 3.486 2.148 1.338 70768 2.86 17.301 6.864 10.437 3.497 2.136 1.361 70948 3.19 17.185 6.300 10.885 3.479 2.067 1.412 71128 2.75 17.341 6.604 10.737 3.503 2.119 1.384 71488 2.86 17.301 7.334 9.968 3.497 2.222 1.275 71668 2.98 17.260 6.934 10.326 3.491 2.193 1.298 71848 2.81 17.321 7.350 9.971 3.500 2.245 1.255 72388 3.30 17.146 5.944 11.202 3.472 2.013 1.459 72568 3.84 16.947 4.460 12.487 3.436 1.706 1.730 72748 3.52 17.065 5.244 11.820 3.458 1.871 1.587 72928 3.78 16.969 5.188 11.781 3.440 1.824 1.616 73288 3.55 17.055 5.619 11.436 3.456 1.918 1.539 73468 3.21 17.176 6.233 10.943 3.477 2.054 1.423 73648 2.53 17.418 8.025 9.393 3.514 2.374 1.140 73828 3.57 17.046 5.135 11.911 3.454 1.842 1.612 74188 4.21 16.811 3.185 13.626 3.409 1.452 1.957 74368 4.20 16.812 2.670 14.142 3.410 1.304 2.105 74548 4.43 16.726 2.516 14.210 3.391 1.285 2.107 74728 4.57 16.673 2.289 14.384 3.380 1.209 2.171 75088 4.51 16.696 2.518 14.178 3.385 1.281 2.104 75268 4.41 16.732 2.564 14.168 3.393 1.308 2.084 75448 4.08 16.858 2.590 14.268 3.419 1.291 2.127 75628 4.45 16.718 2.463 14.255 3.390 1.264 2.126 75988 3.43 17.099 5.584 11.516 3.464 1.928 1.536 76168 3.37 17.118 5.308 11.810 3.467 1.851 1.616 76348 3.96 16.903 3.874 13.029 3.428 1.577 1.851 76528 2.20 17.530 9.424 8.106 3.528 2.530 0.998 76888 3.84 16.947 4.586 12.360 3.436 1.694 1.742 77068 3.94 16.912 3.966 12.946 3.429 1.609 1.821 77248 3.61 17.034 5.023 12.010 3.452 1.780 1.672 77788 2.42 17.454 8.848 8.606 3.519 2.490 1.029 77968 2.69 17.360 8.358 9.002 3.506 2.428 1.077 78148 3.59 17.038 5.042 11.996 3.453 1.824 1.629 78328 3.72 16.990 5.174 11.817 3.444 1.840 1.605 78688 3.43 17.097 5.372 11.725 3.464 1.894 1.569 78868 3.63 17.024 4.898 12.126 3.450 1.815 1.636 79048 3.37 17.118 5.673 11.445 3.467 1.946 1.521 79228 3.01 17.248 6.848 10.400 3.489 2.169 1.320 79588 2.89 17.291 7.268 10.023 3.495 2.247 1.248 79768 2.86 17.301 7.378 9.924 3.497 2.251 1.246 79948 3.05 17.234 6.722 10.513 3.487 2.157 1.330 80128 3.03 17.241 6.755 10.486 3.488 2.132 1.355 80488 3.32 17.139 6.262 10.877 3.471 2.033 1.438 80668 3.27 17.154 6.030 11.125 3.473 2.025 1.448 80848 3.43 17.097 5.471 11.627 3.464 1.889 1.575 81028 2.60 17.394 8.313 9.081 3.510 2.383 1.128 81388 1.83 17.655 11.239 6.416 3.543 2.770 0.772 81568 1.51 17.762 12.975 4.786 3.553 2.993 0.560 81748 1.33 17.821 13.381 4.440 3.558 3.025 0.533 81928 1.09 17.896 14.328 3.568 3.564 3.139 0.425 82288 2.20 17.530 10.314 7.216 3.528 2.680 0.849 82468 2.17 17.541 9.826 7.715 3.530 2.601 0.929 82648 2.92 17.281 7.331 9.950 3.494 2.213 1.281 83188 2.69 17.363 7.906 9.457 3.506 2.353 1.153 83368 2.36 17.475 8.786 8.689 3.521 2.497 1.024 83548 2.36 17.477 8.988 8.490 3.522 2.537 0.985 83728 2.53 17.418 8.149 9.268 3.514 2.393 1.121 84088 2.86 17.301 7.891 9.411 3.497 2.346 1.151 84268 2.92 17.281 7.172 10.110 3.494 2.220 1.274 84448 2.81 17.321 8.159 9.162 3.500 2.375 1.125 84628 2.50 17.429 8.520 8.909 3.515 2.450 1.066 85528 2.53 17.418 9999.000 9999.000 3.514 9999.000 9999.000 85888 2.81 17.321 7.218 10.103 3.500 9999.000 9999.000 86068 2.80 17.321 7.605 9.717 3.500 9999.000 9999.000 86248 2.58 17.399 7.959 9.439 3.511 9999.000 9999.000 86428 2.78 17.328 7.690 9.638 3.501 9999.000 9999.000 86788 3.16 17.195 6.403 10.792 3.480 9999.000 9999.000 86968 3.55 17.055 5.958 11.097 3.456 9999.000 9999.000 87148 3.48 17.081 5.411 11.670 3.461 1.913 1.548 87328 3.14 17.201 5.608 11.592 3.481 1.931 1.550 87688 1.46 17.779 13.606 4.173 3.555 3.076 0.479 87868 0.75 18.006 16.224 1.782 3.571 3.314 0.257 88048 1.20 17.863 15.418 2.445 3.561 3.224 0.338 88228 0.26 18.158 19.170 -1.012 3.576 3.550 0.026 88588 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88768 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000