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 1996 02 02 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 68827 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69007 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69187 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69367 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69727 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69907 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70087 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70267 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70627 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70807 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70987 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71167 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71527 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71707 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71887 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72067 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72427 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72607 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72787 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73327 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73507 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73687 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73867 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74227 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74407 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74587 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75127 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75307 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75487 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75667 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76027 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76387 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76567 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76927 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77107 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77287 9999.00 9999.000 19.406 9999.000 9999.000 3.434 9999.000 77467 -0.07 18.856 19.032 -0.176 3.542 3.447 0.095 77827 -0.12 18.870 19.303 -0.433 3.540 3.457 0.082 78007 0.26 18.770 18.787 -0.017 3.552 3.413 0.139 78187 -0.03 18.846 18.802 0.044 3.543 3.418 0.125 78367 0.17 18.794 19.086 -0.293 3.550 3.417 0.133 78727 0.12 18.805 18.243 0.563 3.548 3.356 0.192 78907 -0.01 18.841 18.733 0.108 3.544 3.414 0.129 79087 -0.14 18.875 19.052 -0.177 3.539 3.426 0.113 79627 0.02 18.832 18.624 0.208 3.545 3.408 0.137 79807 -0.87 19.060 18.942 0.118 3.507 3.409 0.098 79987 -0.03 18.846 18.782 0.064 3.543 3.417 0.126 80167 -0.14 18.875 18.646 0.229 3.539 3.395 0.144 80527 1.82 18.329 11.800 6.529 3.578 9999.000 9999.000 80707 2.54 18.112 9.594 8.518 3.575 9999.000 9999.000 80887 4.36 17.521 5.042 12.478 3.527 9999.000 9999.000 81067 3.91 17.674 6.090 11.584 3.545 9999.000 9999.000 81427 4.31 17.539 5.207 12.332 3.529 9999.000 9999.000 81607 4.10 17.612 5.206 12.406 3.538 9999.000 9999.000 81787 4.53 17.464 4.662 12.802 3.520 9999.000 9999.000 81967 4.31 17.539 4.495 13.044 3.530 9999.000 9999.000 82327 4.53 17.465 4.421 13.044 3.520 9999.000 9999.000 82507 4.81 17.368 4.046 13.322 3.507 9999.000 9999.000 82687 4.86 17.350 3.892 13.458 3.504 9999.000 9999.000 82867 4.98 17.308 3.697 13.611 3.498 9999.000 9999.000 83227 4.67 17.416 4.389 13.026 3.514 9999.000 9999.000 83407 5.25 17.210 4.567 12.643 3.483 9999.000 9999.000 83587 4.45 17.492 4.880 12.612 3.524 9999.000 9999.000 83767 4.03 17.635 5.760 11.875 3.541 9999.000 9999.000 84127 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84307 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000