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 ASHOE/MAESA 1 1 1994 04 08 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) 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 SF6 on this flight. Mean age of air cannot be calculated. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 72243 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72423 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72603 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72963 9999.00 9999.000 9999.000 9999.000 9999.000 3.165 9999.000 73143 9999.00 9999.000 9999.000 9999.000 9999.000 3.101 9999.000 73323 9999.00 9999.000 9999.000 9999.000 9999.000 3.238 9999.000 73683 9999.00 9999.000 9999.000 9999.000 9999.000 2.994 9999.000 73863 9999.00 9999.000 9999.000 9999.000 9999.000 2.859 9999.000 74043 9999.00 9999.000 9999.000 9999.000 9999.000 2.841 9999.000 74403 9999.00 9999.000 9999.000 9999.000 9999.000 3.055 9999.000 74583 9999.00 9999.000 9999.000 9999.000 9999.000 3.067 9999.000 74763 9999.00 9999.000 9999.000 9999.000 9999.000 2.619 9999.000 75303 9999.00 9999.000 9999.000 9999.000 9999.000 2.913 9999.000 75483 9999.00 9999.000 9999.000 9999.000 9999.000 2.940 9999.000 75663 9999.00 9999.000 9999.000 9999.000 9999.000 2.633 9999.000 76023 9999.00 9999.000 9999.000 9999.000 9999.000 2.291 9999.000 76203 9999.00 9999.000 9999.000 9999.000 9999.000 2.271 9999.000 76383 9999.00 9999.000 9999.000 9999.000 9999.000 2.213 9999.000 76743 9999.00 9999.000 9999.000 9999.000 9999.000 2.150 9999.000 76923 9999.00 9999.000 9999.000 9999.000 9999.000 1.741 9999.000 77103 9999.00 9999.000 9999.000 9999.000 9999.000 1.726 9999.000 77463 9999.00 9999.000 9999.000 9999.000 9999.000 1.565 9999.000 77643 9999.00 9999.000 9999.000 9999.000 9999.000 1.540 9999.000 77823 9999.00 9999.000 9999.000 9999.000 9999.000 1.464 9999.000 78363 9999.00 9999.000 9999.000 9999.000 9999.000 1.747 9999.000 78543 9999.00 9999.000 9999.000 9999.000 9999.000 1.759 9999.000 78723 9999.00 9999.000 9999.000 9999.000 9999.000 1.773 9999.000 79083 9999.00 9999.000 9999.000 9999.000 9999.000 1.582 9999.000 79263 9999.00 9999.000 9999.000 9999.000 9999.000 1.476 9999.000 79443 9999.00 9999.000 9999.000 9999.000 9999.000 1.553 9999.000 79803 9999.00 9999.000 9999.000 9999.000 9999.000 1.702 9999.000 79983 9999.00 9999.000 9999.000 9999.000 9999.000 1.548 9999.000 80163 9999.00 9999.000 9999.000 9999.000 9999.000 1.565 9999.000 80523 9999.00 9999.000 9999.000 9999.000 9999.000 1.515 9999.000 80703 9999.00 9999.000 9999.000 9999.000 9999.000 1.405 9999.000 80883 9999.00 9999.000 9999.000 9999.000 9999.000 1.367 9999.000 81423 9999.00 9999.000 9999.000 9999.000 9999.000 1.269 9999.000 81783 9999.00 9999.000 9999.000 9999.000 9999.000 1.158 9999.000 82143 9999.00 9999.000 9999.000 9999.000 9999.000 1.145 9999.000 82323 9999.00 9999.000 9999.000 9999.000 9999.000 1.155 9999.000 82503 9999.00 9999.000 9999.000 9999.000 9999.000 1.122 9999.000 82863 9999.00 9999.000 9999.000 9999.000 9999.000 1.258 9999.000 83223 9999.00 9999.000 9999.000 9999.000 9999.000 1.075 9999.000 83583 9999.00 9999.000 9999.000 9999.000 9999.000 1.013 9999.000 83763 9999.00 9999.000 9999.000 9999.000 9999.000 0.984 9999.000 83943 9999.00 9999.000 9999.000 9999.000 9999.000 1.002 9999.000 84483 9999.00 9999.000 9999.000 9999.000 9999.000 1.690 9999.000 84663 9999.00 9999.000 9999.000 9999.000 9999.000 1.927 9999.000 84843 9999.00 9999.000 9999.000 9999.000 9999.000 1.967 9999.000 85203 9999.00 9999.000 9999.000 9999.000 9999.000 1.667 9999.000 85383 9999.00 9999.000 9999.000 9999.000 9999.000 1.553 9999.000 85563 9999.00 9999.000 9999.000 9999.000 9999.000 1.708 9999.000 85923 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86103 9999.00 9999.000 9999.000 9999.000 9999.000 2.555 9999.000 86283 9999.00 9999.000 9999.000 9999.000 9999.000 2.662 9999.000 86643 9999.00 9999.000 9999.000 9999.000 9999.000 2.549 9999.000 86823 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87003 9999.00 9999.000 9999.000 9999.000 9999.000 2.156 9999.000 87543 9999.00 9999.000 9999.000 9999.000 9999.000 1.577 9999.000 87723 9999.00 9999.000 9999.000 9999.000 9999.000 1.293 9999.000 87903 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88263 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88443 9999.00 9999.000 9999.000 9999.000 9999.000 1.080 9999.000 88623 9999.00 9999.000 9999.000 9999.000 9999.000 1.156 9999.000 88983 9999.00 9999.000 9999.000 9999.000 9999.000 1.269 9999.000 89163 9999.00 9999.000 9999.000 9999.000 9999.000 1.290 9999.000 89343 9999.00 9999.000 9999.000 9999.000 9999.000 1.085 9999.000 89703 9999.00 9999.000 9999.000 9999.000 9999.000 1.234 9999.000 89883 9999.00 9999.000 9999.000 9999.000 9999.000 1.081 9999.000 90063 9999.00 9999.000 9999.000 9999.000 9999.000 1.192 9999.000 90603 9999.00 9999.000 9999.000 9999.000 9999.000 1.536 9999.000 90783 9999.00 9999.000 9999.000 9999.000 9999.000 1.538 9999.000 90963 9999.00 9999.000 9999.000 9999.000 9999.000 1.614 9999.000 91323 9999.00 9999.000 9999.000 9999.000 9999.000 1.495 9999.000 91503 9999.00 9999.000 9999.000 9999.000 9999.000 1.318 9999.000 91683 9999.00 9999.000 9999.000 9999.000 9999.000 1.595 9999.000 92043 9999.00 9999.000 9999.000 9999.000 9999.000 1.660 9999.000 92223 9999.00 9999.000 9999.000 9999.000 9999.000 1.632 9999.000 92403 9999.00 9999.000 9999.000 9999.000 9999.000 1.537 9999.000 92763 9999.00 9999.000 9999.000 9999.000 9999.000 1.447 9999.000 92943 9999.00 9999.000 9999.000 9999.000 9999.000 1.399 9999.000 93123 9999.00 9999.000 9999.000 9999.000 9999.000 1.330 9999.000 93663 9999.00 9999.000 9999.000 9999.000 9999.000 1.375 9999.000 93843 9999.00 9999.000 9999.000 9999.000 9999.000 1.396 9999.000 94023 9999.00 9999.000 9999.000 9999.000 9999.000 1.450 9999.000 94383 9999.00 9999.000 9999.000 9999.000 9999.000 1.687 9999.000 94563 9999.00 9999.000 9999.000 9999.000 9999.000 2.500 9999.000 94743 9999.00 9999.000 9999.000 9999.000 9999.000 2.319 9999.000 95103 9999.00 9999.000 9999.000 9999.000 9999.000 2.410 9999.000 95283 9999.00 9999.000 9999.000 9999.000 9999.000 2.310 9999.000 95463 9999.00 9999.000 9999.000 9999.000 9999.000 2.368 9999.000 95823 9999.00 9999.000 9999.000 9999.000 9999.000 2.025 9999.000 96003 9999.00 9999.000 9999.000 9999.000 9999.000 2.172 9999.000 96183 9999.00 9999.000 9999.000 9999.000 9999.000 1.981 9999.000 96723 9999.00 9999.000 9999.000 9999.000 9999.000 2.266 9999.000 96903 9999.00 9999.000 9999.000 9999.000 9999.000 2.340 9999.000 97083 9999.00 9999.000 9999.000 9999.000 9999.000 2.539 9999.000 97443 9999.00 9999.000 9999.000 9999.000 9999.000 2.336 9999.000 97623 9999.00 9999.000 9999.000 9999.000 9999.000 2.514 9999.000 97803 9999.00 9999.000 9999.000 9999.000 9999.000 2.556 9999.000 98163 9999.00 9999.000 9999.000 9999.000 9999.000 2.748 9999.000 98343 9999.00 9999.000 9999.000 9999.000 9999.000 2.756 9999.000 98523 9999.00 9999.000 9999.000 9999.000 9999.000 3.096 9999.000 98883 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99063 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99243 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99783 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99963 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000