78 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 02 18 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) 56 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. To calculate HCFC-22 ALIAS CH4 was used. ACATS did not measure N2O. To calculate CH3CCl3 ATLAS N2O was used. ACATS did not measure SF6 on this flight. Mean age of air cannot be calculated. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 58042 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58222 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58582 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 58762 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 59122 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 59302 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 59662 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 59842 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 60202 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 60382 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 60742 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 60922 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 61282 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 61462 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 61822 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62002 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62362 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62542 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 62902 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 63082 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 63442 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 63622 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 63982 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64162 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64522 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64702 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65062 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65242 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65602 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65782 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66142 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66322 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66682 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66862 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67222 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67402 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67762 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67942 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 68302 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 68482 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 68842 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69022 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69382 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69562 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69922 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70102 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70462 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70642 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71002 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71182 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71542 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71722 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72082 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72262 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72622 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72802 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73162 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73342 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73702 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73882 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74242 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74422 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74782 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74962 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75322 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75502 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75862 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76042 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76402 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76582 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76942 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77122 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77482 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77662 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78022 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78202 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78562 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78742 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79102 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79282 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79642 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79822 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80182 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80362 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80722 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80902 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81262 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81442 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81802 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81982 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82342 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82522 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82882 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83062 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83422 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83602 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83962 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84142 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84502 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84682 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85042 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85222 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85582 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85762 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86122 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000