76 1001 ELKINS, JAMES; WAMSLEY, PAULA; HURST, DALE; ROMASHKIN, PAVEL; DUTTON, GEOFF U.S. DEPT OF COMMERCE, NOAA / CMDL / NITROUS OXIDE AND HALOCOMPOUNDS DIVISION ACATS STRAT 1 1 1995 11 05 1998 07 23 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) 54 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. To calculate HCFC-22 ALIAS CH4 was used. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 74525 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74705 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74885 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75065 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75425 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75605 0.42 18.660 17.197 1.463 3.563 3.326 0.237 75785 0.13 18.738 17.718 1.020 3.556 3.329 0.227 75965 0.52 18.632 16.332 2.301 3.565 3.276 0.289 76325 0.49 18.639 16.501 2.138 3.565 3.298 0.266 76505 0.63 18.601 16.087 2.514 3.568 3.280 0.287 76685 0.65 18.595 15.478 3.117 3.568 3.193 0.375 76865 1.09 18.471 14.760 3.711 3.575 3.168 0.407 77225 0.68 18.589 15.005 3.584 3.568 3.184 0.385 77405 0.80 18.554 14.647 3.907 3.571 3.140 0.430 77585 1.23 18.430 14.478 3.952 3.576 3.122 0.454 77765 0.79 18.557 14.664 3.894 3.570 3.145 0.425 78125 0.79 18.557 14.624 3.934 3.570 3.118 0.452 78305 1.09 18.471 14.534 3.937 3.575 3.164 0.410 78485 0.87 18.535 14.307 4.228 3.572 3.108 0.463 79025 1.33 18.403 13.882 4.521 3.577 3.104 0.472 79205 0.78 18.560 14.802 3.758 3.570 3.157 0.413 79385 1.14 18.457 14.299 4.159 3.575 3.138 0.437 79565 0.77 18.564 14.850 3.714 3.570 3.168 0.402 79925 0.88 18.532 14.211 4.321 3.572 3.104 0.468 80105 1.14 18.457 14.779 3.678 3.575 3.191 0.384 80285 0.91 18.522 14.026 4.496 3.572 3.111 0.462 80825 1.28 18.417 14.556 3.861 3.576 3.193 0.383 81005 0.77 18.562 14.701 3.861 3.570 3.180 0.390 81185 1.09 18.471 14.583 3.888 3.575 3.192 0.383 81365 0.86 18.537 14.195 4.342 3.572 3.130 0.441 81725 0.89 18.528 14.007 4.522 3.572 3.114 0.457 82085 0.91 18.524 14.013 4.511 3.572 3.129 0.443 82265 0.82 18.550 14.258 4.292 3.571 3.170 0.401 82625 1.00 18.497 13.690 4.807 3.573 9999.000 9999.000 82805 0.89 18.529 14.095 4.435 3.572 3.142 0.430 82985 0.86 18.537 14.537 4.000 3.572 3.214 0.358 83165 0.86 18.538 14.224 4.314 3.571 3.148 0.423 83525 0.84 18.542 14.298 4.244 3.571 3.156 0.415 83705 0.68 18.589 14.327 4.261 3.568 3.194 0.374 83885 0.86 18.538 14.263 4.275 3.571 9999.000 9999.000 84065 0.77 18.563 14.091 4.472 3.570 9999.000 9999.000 84425 1.09 18.471 13.771 4.700 3.575 9999.000 9999.000 84605 0.93 18.519 13.811 4.707 3.572 9999.000 9999.000 84785 1.28 18.417 13.775 4.642 3.576 9999.000 9999.000 85325 0.92 18.520 13.829 4.691 3.572 9999.000 9999.000 85505 0.77 18.563 13.649 4.914 3.570 9999.000 9999.000 85685 1.02 18.491 13.353 5.138 3.574 9999.000 9999.000 85865 0.86 18.537 13.390 5.147 3.572 9999.000 9999.000 86225 0.63 18.601 13.590 5.011 3.568 9999.000 9999.000 86405 1.13 18.460 12.936 5.524 3.575 9999.000 9999.000 86585 0.82 18.550 13.690 4.860 3.571 9999.000 9999.000 86765 1.07 18.478 13.193 5.285 3.574 9999.000 9999.000 87125 1.09 18.471 13.039 5.432 3.575 9999.000 9999.000 87305 0.77 18.563 12.737 5.825 3.570 9999.000 9999.000 87485 1.15 18.453 12.782 5.671 3.575 9999.000 9999.000 87665 0.95 18.511 12.783 5.728 3.573 9999.000 9999.000 88025 0.82 18.550 13.145 5.405 3.571 9999.000 9999.000 88205 1.22 18.434 12.614 5.820 3.576 9999.000 9999.000 88385 0.91 18.524 13.116 5.407 3.572 9999.000 9999.000 88565 1.15 18.454 12.780 5.674 3.575 9999.000 9999.000 88925 1.01 18.495 13.405 5.091 3.574 9999.000 9999.000 89105 0.68 18.589 15.387 3.202 3.568 9999.000 9999.000 89285 0.35 18.678 17.777 0.901 3.562 3.410 0.151 89465 0.31 18.689 18.619 0.070 3.561 3.459 0.102 89825 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90005 0.23 18.711 19.261 -0.550 3.558 3.492 0.067 90185 0.18 18.726 19.061 -0.336 3.557 3.450 0.108 90725 0.80 18.554 14.527 4.027 3.571 9999.000 9999.000 90905 1.19 18.444 14.276 4.168 3.576 9999.000 9999.000 91085 0.91 18.522 13.836 4.686 3.572 9999.000 9999.000 91265 0.72 18.576 13.870 4.705 3.569 9999.000 9999.000 91625 1.28 18.417 13.348 5.069 3.576 9999.000 9999.000 91805 1.19 18.444 12.626 5.818 3.576 9999.000 9999.000 91985 1.47 18.361 12.221 6.140 3.577 9999.000 9999.000 92165 1.14 18.458 12.761 5.697 3.575 9999.000 9999.000 92525 1.27 18.421 12.279 6.142 3.576 9999.000 9999.000 92705 1.19 18.444 12.546 5.898 3.576 9999.000 9999.000 92885 1.20 18.440 12.558 5.882 3.576 9999.000 9999.000 93065 1.19 18.444 12.844 5.600 3.576 9999.000 9999.000 93425 1.00 18.497 12.805 5.693 3.573 9999.000 9999.000 93605 1.06 18.479 13.150 5.330 3.574 9999.000 9999.000 93785 0.91 18.524 12.666 5.858 3.572 9999.000 9999.000 93965 1.04 18.485 13.206 5.279 3.574 9999.000 9999.000 94325 1.17 18.449 12.753 5.696 3.575 9999.000 9999.000 94505 1.14 18.457 12.530 5.927 3.575 9999.000 9999.000 94685 1.22 18.435 12.582 5.853 3.576 9999.000 9999.000 94865 1.33 18.403 12.082 6.321 3.577 9999.000 9999.000 95225 0.95 18.511 11.284 7.227 3.573 9999.000 9999.000 95405 1.46 18.365 11.640 6.724 3.577 9999.000 9999.000 95585 1.28 18.417 11.805 6.612 3.576 9999.000 9999.000 96125 1.54 18.342 11.451 6.891 3.578 9999.000 9999.000 96305 1.14 18.457 11.562 6.895 3.575 9999.000 9999.000 96485 1.38 18.387 11.921 6.466 3.577 9999.000 9999.000 96665 1.35 18.398 12.048 6.350 3.577 9999.000 9999.000 97025 1.57 18.333 11.311 7.022 3.578 9999.000 9999.000 97205 1.65 18.309 11.080 7.229 3.578 9999.000 9999.000 97385 1.38 18.389 11.116 7.273 3.577 9999.000 9999.000 97565 1.70 18.292 10.976 7.316 3.578 9999.000 9999.000 97925 2.29 18.115 9.566 8.549 3.575 9999.000 9999.000 98105 2.15 18.159 9.702 8.457 3.576 9999.000 9999.000 98285 2.88 17.929 8.502 9.427 3.566 9999.000 9999.000 98465 2.85 17.941 8.676 9.265 3.567 9999.000 9999.000 98825 2.25 18.129 9.685 8.443 3.576 9999.000 9999.000 99005 2.11 18.170 10.106 8.064 3.577 9999.000 9999.000 99185 1.76 18.276 12.080 6.196 3.578 9999.000 9999.000 99365 0.44 18.653 16.979 1.674 3.564 3.363 0.201 99725 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99905 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 100085 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 100265 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000