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 1996 02 01 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. ACATS did not measure CCl4. A derived CCl4 from CFC-11 correlation is used in place. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 58026 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58206 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58386 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58566 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58926 0.89 18.598 14.864 3.733 3.568 9999.000 9999.000 59106 0.92 18.587 14.546 4.041 3.569 9999.000 9999.000 59286 0.52 18.698 15.016 3.682 3.560 9999.000 9999.000 59466 1.91 18.302 11.045 7.257 3.578 9999.000 9999.000 59826 4.26 17.556 5.075 12.480 3.531 9999.000 9999.000 60006 4.42 17.502 4.588 12.914 3.525 9999.000 9999.000 60186 4.49 17.475 4.471 13.005 3.521 9999.000 9999.000 60366 4.53 17.465 4.572 12.892 3.520 9999.000 9999.000 60726 4.20 17.576 4.993 12.583 3.534 9999.000 9999.000 60906 4.14 17.595 5.208 12.388 3.536 9999.000 9999.000 61086 3.88 17.683 5.449 12.234 3.546 9999.000 9999.000 61266 4.03 17.631 5.374 12.257 3.540 9999.000 9999.000 61626 4.13 17.598 5.202 12.396 3.536 9999.000 9999.000 61806 3.72 17.735 5.454 12.282 3.551 9999.000 9999.000 61986 3.97 17.654 5.538 12.116 3.543 9999.000 9999.000 62526 3.99 17.648 5.231 12.416 3.542 9999.000 9999.000 62706 3.95 17.659 5.578 12.081 3.543 9999.000 9999.000 62886 3.77 17.718 5.598 12.120 3.549 9999.000 9999.000 63066 3.92 17.669 5.663 12.006 3.544 9999.000 9999.000 63426 3.96 17.657 5.553 12.103 3.543 9999.000 9999.000 63606 4.42 17.502 5.583 11.919 3.525 9999.000 9999.000 63786 3.95 17.660 5.503 12.157 3.543 9999.000 9999.000 64326 4.42 17.502 5.588 11.914 3.525 9999.000 9999.000 64506 3.94 17.664 5.633 12.031 3.544 9999.000 9999.000 64686 4.31 17.539 6.136 11.403 3.530 9999.000 9999.000 64866 3.90 17.676 5.704 11.973 3.545 9999.000 9999.000 65226 4.33 17.531 4.717 12.814 3.529 9999.000 9999.000 65586 4.15 17.592 5.128 12.463 3.536 9999.000 9999.000 65766 4.31 17.539 5.285 12.254 3.530 9999.000 9999.000 66126 4.20 17.576 4.726 12.850 3.534 9999.000 9999.000 66306 4.86 17.349 3.624 13.725 3.504 9999.000 9999.000 66486 5.02 17.291 3.673 13.618 3.495 9999.000 9999.000 66666 4.96 17.314 3.430 13.884 3.499 9999.000 9999.000 67026 4.05 17.628 5.304 12.323 3.540 9999.000 9999.000 67206 4.64 17.427 5.439 11.988 3.515 9999.000 9999.000 67386 3.81 17.705 5.846 11.859 3.548 9999.000 9999.000 67566 4.36 17.521 5.836 11.685 3.527 9999.000 9999.000 67926 3.88 17.683 6.226 11.458 3.546 9999.000 9999.000 68106 4.09 17.613 5.271 12.342 3.538 9999.000 9999.000 68286 5.19 17.231 3.443 13.788 3.486 9999.000 9999.000 68826 5.12 17.257 3.217 14.039 3.490 9999.000 9999.000 69006 4.36 17.521 4.233 13.288 3.527 9999.000 9999.000 69186 4.76 17.384 3.902 13.483 3.509 9999.000 9999.000 69366 4.42 17.502 4.307 13.195 3.525 9999.000 9999.000 69726 5.48 17.128 2.480 14.648 3.469 9999.000 9999.000 69906 5.81 17.010 2.017 14.993 3.448 9999.000 9999.000 70086 5.83 17.001 1.680 15.321 3.446 9999.000 9999.000 70266 6.11 16.897 1.560 15.337 3.426 9999.000 9999.000 70626 5.78 17.018 1.929 15.089 3.449 9999.000 9999.000 70806 5.65 17.065 2.085 14.980 3.458 9999.000 9999.000 70986 5.69 17.051 2.067 14.985 3.455 9999.000 9999.000 71166 5.42 17.149 2.277 14.872 3.473 9999.000 9999.000 71526 6.80 16.636 0.804 15.832 3.372 9999.000 9999.000 71706 5.36 17.170 2.699 14.471 3.476 9999.000 9999.000 71886 4.86 17.350 4.139 13.211 3.504 9999.000 9999.000 72066 4.31 17.539 4.929 12.610 3.530 9999.000 9999.000 72426 4.85 17.353 3.782 13.571 3.505 9999.000 9999.000 72606 4.86 17.350 4.789 12.560 3.504 9999.000 9999.000 72786 4.52 17.465 4.340 13.125 3.520 9999.000 9999.000 72966 5.54 17.107 2.626 14.481 3.465 9999.000 9999.000 73326 4.80 17.369 3.734 13.635 3.507 9999.000 9999.000 73506 4.42 17.502 4.506 12.996 3.525 9999.000 9999.000 73686 4.64 17.427 4.436 12.991 3.515 9999.000 9999.000 74226 4.26 17.556 4.810 12.746 3.532 9999.000 9999.000 74406 4.47 17.484 4.224 13.260 3.523 9999.000 9999.000 74586 4.27 17.554 4.816 12.738 3.531 9999.000 9999.000 74766 4.64 17.427 3.460 13.967 3.515 9999.000 9999.000 75126 5.25 17.210 2.841 14.369 3.483 9999.000 9999.000 75306 4.17 17.585 5.070 12.515 3.535 9999.000 9999.000 75486 4.64 17.427 3.774 13.653 3.515 9999.000 9999.000 75666 4.64 17.427 4.088 13.339 3.515 9999.000 9999.000 76026 4.16 17.591 5.084 12.507 3.536 9999.000 9999.000 76206 3.99 17.648 4.922 12.726 3.542 9999.000 9999.000 76386 4.20 17.576 4.956 12.620 3.534 9999.000 9999.000 76566 4.69 17.408 4.262 13.146 3.512 9999.000 9999.000 76926 4.53 17.465 3.746 13.718 3.520 9999.000 9999.000 77106 4.87 17.344 3.618 13.726 3.503 9999.000 9999.000 77286 4.86 17.350 3.240 14.110 3.504 9999.000 9999.000 77466 5.13 17.253 3.111 14.142 3.489 9999.000 9999.000 77826 4.62 17.430 4.056 13.374 3.516 9999.000 9999.000 78006 4.58 17.446 4.035 13.411 3.518 9999.000 9999.000 78186 4.51 17.469 4.348 13.121 3.521 9999.000 9999.000 78366 4.47 17.484 4.147 13.336 3.523 9999.000 9999.000 78726 4.86 17.350 3.589 13.761 3.504 9999.000 9999.000 78906 4.60 17.439 4.087 13.352 3.517 9999.000 9999.000 79086 4.69 17.408 3.604 13.803 3.512 9999.000 9999.000 79626 4.78 17.376 3.792 13.584 3.508 9999.000 9999.000 79806 4.36 17.521 3.923 13.598 3.527 9999.000 9999.000 79986 4.82 17.361 3.661 13.700 3.506 9999.000 9999.000 80166 4.69 17.408 3.693 13.715 3.512 9999.000 9999.000 80526 4.69 17.408 3.579 13.829 3.512 9999.000 9999.000 80706 4.89 17.337 3.528 13.810 3.502 9999.000 9999.000 80886 4.53 17.465 3.679 13.786 3.520 9999.000 9999.000 81066 4.78 17.378 3.781 13.597 3.508 9999.000 9999.000 81426 4.73 17.395 3.875 13.520 3.511 9999.000 9999.000 81606 4.42 17.502 3.760 13.742 3.525 9999.000 9999.000 81786 4.75 17.385 3.796 13.589 3.509 9999.000 9999.000 81966 4.58 17.446 3.268 14.178 3.518 9999.000 9999.000 82326 4.58 17.446 3.795 13.651 3.518 9999.000 9999.000 82506 4.75 17.385 3.816 13.569 3.509 9999.000 9999.000 82686 4.58 17.446 3.599 13.846 3.518 9999.000 9999.000 82866 4.96 17.312 3.351 13.961 3.499 9999.000 9999.000 83226 4.73 17.394 3.876 13.517 3.510 9999.000 9999.000 83406 4.97 17.311 3.467 13.843 3.498 9999.000 9999.000 83586 5.13 17.252 3.097 14.155 3.489 9999.000 9999.000 83766 5.02 17.291 3.333 13.958 3.495 9999.000 9999.000 84126 -0.01 18.840 18.618 0.223 3.544 9999.000 9999.000 84306 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84486 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84666 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000