77 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 03 21 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) 55 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. ACATS did not measure CH3CCl3. A derived CH3CCl3 from CFC-11 correlation is used in place. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 65388 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65568 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65928 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66108 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66468 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66648 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67008 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67188 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67548 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67728 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 68088 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 68268 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 68628 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 68808 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69168 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69348 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69708 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69888 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70248 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70428 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70788 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70968 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71328 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71508 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71868 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72048 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72408 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72588 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72948 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73128 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73488 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73668 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74028 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74208 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74568 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74748 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75108 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75288 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75648 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75828 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76188 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76368 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76728 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76908 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77268 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77448 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77808 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77988 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78348 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78528 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78888 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79068 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79428 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79608 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79968 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80148 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80508 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80688 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81048 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81228 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81588 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81768 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82128 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82308 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82668 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82848 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83208 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83388 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83748 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83928 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84288 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84468 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84828 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85008 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85368 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85548 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85908 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86088 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86448 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86628 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86988 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87168 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87528 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87708 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88068 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88248 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88608 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 88788 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 89148 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 89328 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 89688 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 89868 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90228 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90408 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90768 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90948 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 91308 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 91488 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 91848 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92028 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92388 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000