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 03 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 73107 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73286 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73466 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73826 9999.00 9999.000 9999.000 9999.000 9999.000 3.395 9999.000 74007 9999.00 9999.000 9999.000 9999.000 9999.000 2.720 9999.000 74187 9999.00 9999.000 9999.000 9999.000 9999.000 2.948 9999.000 74547 9999.00 9999.000 9999.000 9999.000 9999.000 2.592 9999.000 74726 9999.00 9999.000 9999.000 9999.000 9999.000 2.776 9999.000 74907 9999.00 9999.000 9999.000 9999.000 9999.000 2.659 9999.000 75267 9999.00 9999.000 9999.000 9999.000 9999.000 2.198 9999.000 75447 9999.00 9999.000 9999.000 9999.000 9999.000 2.214 9999.000 75627 9999.00 9999.000 9999.000 9999.000 9999.000 2.344 9999.000 76167 9999.00 9999.000 9999.000 9999.000 9999.000 2.562 9999.000 76347 9999.00 9999.000 9999.000 9999.000 9999.000 2.920 9999.000 76527 9999.00 9999.000 9999.000 9999.000 9999.000 2.993 9999.000 76886 9999.00 9999.000 9999.000 9999.000 9999.000 3.051 9999.000 77066 9999.00 9999.000 9999.000 9999.000 9999.000 3.085 9999.000 77247 9999.00 9999.000 9999.000 9999.000 9999.000 2.919 9999.000 77607 9999.00 9999.000 9999.000 9999.000 9999.000 2.776 9999.000 77787 9999.00 9999.000 9999.000 9999.000 9999.000 2.944 9999.000 77967 9999.00 9999.000 9999.000 9999.000 9999.000 2.379 9999.000 78327 9999.00 9999.000 9999.000 9999.000 9999.000 2.293 9999.000 78507 9999.00 9999.000 9999.000 9999.000 9999.000 2.208 9999.000 78686 9999.00 9999.000 9999.000 9999.000 9999.000 2.227 9999.000 79226 9999.00 9999.000 9999.000 9999.000 9999.000 2.600 9999.000 79407 9999.00 9999.000 9999.000 9999.000 9999.000 2.539 9999.000 79587 9999.00 9999.000 9999.000 9999.000 9999.000 2.446 9999.000 79947 9999.00 9999.000 9999.000 9999.000 9999.000 2.337 9999.000 80126 9999.00 9999.000 9999.000 9999.000 9999.000 2.415 9999.000 80306 9999.00 9999.000 9999.000 9999.000 9999.000 2.408 9999.000 80667 9999.00 9999.000 9999.000 9999.000 9999.000 2.310 9999.000 80847 9999.00 9999.000 9999.000 9999.000 9999.000 2.303 9999.000 81027 9999.00 9999.000 9999.000 9999.000 9999.000 2.340 9999.000 81386 9999.00 9999.000 9999.000 9999.000 9999.000 2.321 9999.000 81567 9999.00 9999.000 9999.000 9999.000 9999.000 2.318 9999.000 81747 9999.00 9999.000 9999.000 9999.000 9999.000 2.356 9999.000 82286 9999.00 9999.000 9999.000 9999.000 9999.000 2.403 9999.000 82647 9999.00 9999.000 9999.000 9999.000 9999.000 2.390 9999.000 83007 9999.00 9999.000 9999.000 9999.000 9999.000 2.394 9999.000 83187 9999.00 9999.000 9999.000 9999.000 9999.000 2.375 9999.000 83367 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83727 9999.00 9999.000 9999.000 9999.000 9999.000 2.645 9999.000 84087 9999.00 9999.000 9999.000 9999.000 9999.000 2.874 9999.000 84446 9999.00 9999.000 9999.000 9999.000 9999.000 2.989 9999.000 84626 9999.00 9999.000 9999.000 9999.000 9999.000 3.053 9999.000 84807 9999.00 9999.000 9999.000 9999.000 9999.000 3.047 9999.000 85347 9999.00 9999.000 9999.000 9999.000 9999.000 2.814 9999.000 85526 9999.00 9999.000 9999.000 9999.000 9999.000 3.227 9999.000 85706 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86067 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86247 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86427 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86786 9999.00 9999.000 9999.000 9999.000 9999.000 3.313 9999.000 86967 9999.00 9999.000 9999.000 9999.000 9999.000 3.244 9999.000 87147 9999.00 9999.000 9999.000 9999.000 9999.000 3.199 9999.000 87507 9999.00 9999.000 9999.000 9999.000 9999.000 3.069 9999.000 87686 9999.00 9999.000 9999.000 9999.000 9999.000 2.953 9999.000 87866 9999.00 9999.000 9999.000 9999.000 9999.000 2.982 9999.000 88407 9999.00 9999.000 9999.000 9999.000 9999.000 2.937 9999.000 88587 9999.00 9999.000 9999.000 9999.000 9999.000 2.947 9999.000 88766 9999.00 9999.000 9999.000 9999.000 9999.000 2.964 9999.000 89127 9999.00 9999.000 9999.000 9999.000 9999.000 2.897 9999.000 89307 9999.00 9999.000 9999.000 9999.000 9999.000 2.906 9999.000 89487 9999.00 9999.000 9999.000 9999.000 9999.000 2.932 9999.000 89846 9999.00 9999.000 9999.000 9999.000 9999.000 2.935 9999.000 90026 9999.00 9999.000 9999.000 9999.000 9999.000 2.716 9999.000 90207 9999.00 9999.000 9999.000 9999.000 9999.000 2.815 9999.000 90567 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90747 9999.00 9999.000 9999.000 9999.000 9999.000 2.333 9999.000 90926 9999.00 9999.000 9999.000 9999.000 9999.000 1.870 9999.000 91467 9999.00 9999.000 9999.000 9999.000 9999.000 1.871 9999.000 91646 9999.00 9999.000 9999.000 9999.000 9999.000 1.850 9999.000 91827 9999.00 9999.000 9999.000 9999.000 9999.000 1.771 9999.000 92186 9999.00 9999.000 9999.000 9999.000 9999.000 1.809 9999.000 92367 9999.00 9999.000 9999.000 9999.000 9999.000 1.875 9999.000 92547 9999.00 9999.000 9999.000 9999.000 9999.000 1.873 9999.000 92906 9999.00 9999.000 9999.000 9999.000 9999.000 1.918 9999.000 93086 9999.00 9999.000 9999.000 9999.000 9999.000 1.935 9999.000 93266 9999.00 9999.000 9999.000 9999.000 9999.000 1.989 9999.000 93627 9999.00 9999.000 9999.000 9999.000 9999.000 1.972 9999.000 93807 9999.00 9999.000 9999.000 9999.000 9999.000 1.917 9999.000 93987 9999.00 9999.000 9999.000 9999.000 9999.000 1.863 9999.000 94527 9999.00 9999.000 9999.000 9999.000 9999.000 2.000 9999.000 94707 9999.00 9999.000 9999.000 9999.000 9999.000 1.981 9999.000 94887 9999.00 9999.000 9999.000 9999.000 9999.000 1.968 9999.000 95246 9999.00 9999.000 9999.000 9999.000 9999.000 1.807 9999.000 95426 9999.00 9999.000 9999.000 9999.000 9999.000 1.917 9999.000 95607 9999.00 9999.000 9999.000 9999.000 9999.000 1.920 9999.000 95967 9999.00 9999.000 9999.000 9999.000 9999.000 1.869 9999.000 96147 9999.00 9999.000 9999.000 9999.000 9999.000 1.889 9999.000 96326 9999.00 9999.000 9999.000 9999.000 9999.000 1.854 9999.000 96687 9999.00 9999.000 9999.000 9999.000 9999.000 1.836 9999.000 96867 9999.00 9999.000 9999.000 9999.000 9999.000 1.807 9999.000 97047 9999.00 9999.000 9999.000 9999.000 9999.000 1.856 9999.000 97587 9999.00 9999.000 9999.000 9999.000 9999.000 1.566 9999.000 97767 9999.00 9999.000 9999.000 9999.000 9999.000 1.700 9999.000 97947 9999.00 9999.000 9999.000 9999.000 9999.000 1.658 9999.000 98307 9999.00 9999.000 9999.000 9999.000 9999.000 2.166 9999.000 98486 9999.00 9999.000 9999.000 9999.000 9999.000 2.234 9999.000 98666 9999.00 9999.000 9999.000 9999.000 9999.000 2.238 9999.000 99027 9999.00 9999.000 9999.000 9999.000 9999.000 2.431 9999.000 99207 9999.00 9999.000 9999.000 9999.000 9999.000 2.757 9999.000 99387 9999.00 9999.000 9999.000 9999.000 9999.000 2.788 9999.000 99746 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99927 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 100107 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000