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 STRAT 1 1 1995 11 07 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) 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 77799 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77979 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78159 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78339 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78699 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78879 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79059 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79239 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79599 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79779 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79959 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80139 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80499 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80679 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80859 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81039 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81399 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81579 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81759 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82299 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82479 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82659 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82839 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83199 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83379 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83559 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84099 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84279 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84459 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84639 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84999 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85359 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85539 -0.35 18.867 18.235 0.632 3.540 3.438 0.102 85899 0.23 18.713 16.802 1.911 3.558 9999.000 9999.000 86079 0.28 18.700 16.676 2.024 3.560 9999.000 9999.000 86259 -0.52 18.912 17.237 1.675 3.534 3.378 0.156 86439 0.09 18.750 17.449 1.301 3.555 3.366 0.188 86799 -0.03 18.782 17.853 0.929 3.551 3.391 0.160 86979 -0.04 18.785 17.933 0.852 3.551 3.383 0.168 87159 -0.03 18.782 17.773 1.009 3.551 3.380 0.171 87339 0.36 18.677 17.798 0.879 3.562 3.417 0.145 87699 0.91 18.524 14.009 4.515 3.572 9999.000 9999.000 87879 0.90 18.528 14.597 3.932 3.572 9999.000 9999.000 88059 0.73 18.576 14.587 3.988 3.569 9999.000 9999.000 88599 0.75 18.568 15.008 3.560 3.570 9999.000 9999.000 88779 0.91 18.524 15.366 3.158 3.572 3.211 0.361 88959 0.68 18.588 15.225 3.363 3.568 9999.000 9999.000 89139 0.73 18.576 15.477 3.098 3.569 3.247 0.322 89499 0.32 18.689 17.078 1.611 3.561 3.414 0.147 89679 -0.05 18.787 17.245 1.542 3.550 3.433 0.118 89859 0.55 18.627 17.656 0.971 3.566 3.451 0.115 90039 -0.01 18.777 17.073 1.704 3.552 3.385 0.167 90399 0.24 18.710 16.408 2.302 3.559 9999.000 9999.000 90579 0.68 18.589 16.961 1.627 3.568 3.415 0.154 90759 0.67 18.593 15.175 3.418 3.568 9999.000 9999.000 90939 1.01 18.497 14.655 3.842 3.573 9999.000 9999.000 91299 0.96 18.511 14.382 4.129 3.573 9999.000 9999.000 91479 0.94 18.517 14.225 4.292 3.573 9999.000 9999.000 91659 2.25 18.129 9.696 8.432 3.576 9999.000 9999.000 91839 3.00 17.895 7.325 10.569 3.564 9999.000 9999.000 92199 2.90 17.924 7.681 10.244 3.566 9999.000 9999.000 92379 2.75 17.973 7.706 10.267 3.569 9999.000 9999.000 92559 2.95 17.911 7.417 10.494 3.565 9999.000 9999.000 92739 3.16 17.842 7.176 10.666 3.560 9999.000 9999.000 93099 2.70 17.989 7.220 10.769 3.570 9999.000 9999.000 93279 2.99 17.898 7.234 10.663 3.564 9999.000 9999.000 93459 3.06 17.875 6.896 10.980 3.562 9999.000 9999.000 93999 0.94 18.516 14.245 4.271 3.573 9999.000 9999.000 94179 0.36 18.677 16.769 1.907 3.562 9999.000 9999.000 94359 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 94539 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 94899 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 95079 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 95259 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 95439 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000