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 05 28 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 72501 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72681 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72861 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73220 9999.00 9999.000 9999.000 9999.000 9999.000 2.924 9999.000 73401 9999.00 9999.000 9999.000 9999.000 9999.000 2.835 9999.000 73581 9999.00 9999.000 9999.000 9999.000 9999.000 2.470 9999.000 73941 9999.00 9999.000 9999.000 9999.000 9999.000 2.178 9999.000 74121 9999.00 9999.000 9999.000 9999.000 9999.000 2.219 9999.000 74301 9999.00 9999.000 9999.000 9999.000 9999.000 2.094 9999.000 74661 9999.00 9999.000 9999.000 9999.000 9999.000 2.400 9999.000 74841 9999.00 9999.000 9999.000 9999.000 9999.000 2.376 9999.000 75021 9999.00 9999.000 9999.000 9999.000 9999.000 2.502 9999.000 75561 9999.00 9999.000 9999.000 9999.000 9999.000 2.498 9999.000 75741 9999.00 9999.000 9999.000 9999.000 9999.000 2.611 9999.000 75921 9999.00 9999.000 9999.000 9999.000 9999.000 2.430 9999.000 76281 9999.00 9999.000 9999.000 9999.000 9999.000 2.424 9999.000 76461 9999.00 9999.000 9999.000 9999.000 9999.000 2.691 9999.000 76641 9999.00 9999.000 9999.000 9999.000 9999.000 2.569 9999.000 77001 9999.00 9999.000 9999.000 9999.000 9999.000 2.340 9999.000 77181 9999.00 9999.000 9999.000 9999.000 9999.000 2.109 9999.000 77361 9999.00 9999.000 9999.000 9999.000 9999.000 2.402 9999.000 77721 9999.00 9999.000 9999.000 9999.000 9999.000 2.545 9999.000 77900 9999.00 9999.000 9999.000 9999.000 9999.000 2.622 9999.000 78081 9999.00 9999.000 9999.000 9999.000 9999.000 2.517 9999.000 78621 9999.00 9999.000 9999.000 9999.000 9999.000 2.687 9999.000 78801 9999.00 9999.000 9999.000 9999.000 9999.000 2.548 9999.000 78981 9999.00 9999.000 9999.000 9999.000 9999.000 2.570 9999.000 79341 9999.00 9999.000 9999.000 9999.000 9999.000 2.541 9999.000 79521 9999.00 9999.000 9999.000 9999.000 9999.000 2.674 9999.000 79701 9999.00 9999.000 9999.000 9999.000 9999.000 2.530 9999.000 80061 9999.00 9999.000 9999.000 9999.000 9999.000 2.567 9999.000 80241 9999.00 9999.000 9999.000 9999.000 9999.000 2.336 9999.000 80421 9999.00 9999.000 9999.000 9999.000 9999.000 2.316 9999.000 80781 9999.00 9999.000 9999.000 9999.000 9999.000 2.291 9999.000 80961 9999.00 9999.000 9999.000 9999.000 9999.000 2.415 9999.000 81141 9999.00 9999.000 9999.000 9999.000 9999.000 2.478 9999.000 81681 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82041 9999.00 9999.000 9999.000 9999.000 9999.000 2.497 9999.000 82401 9999.00 9999.000 9999.000 9999.000 9999.000 2.002 9999.000 82581 9999.00 9999.000 9999.000 9999.000 9999.000 2.054 9999.000 82761 9999.00 9999.000 9999.000 9999.000 9999.000 2.108 9999.000 83121 9999.00 9999.000 9999.000 9999.000 9999.000 2.114 9999.000 83481 9999.00 9999.000 9999.000 9999.000 9999.000 2.204 9999.000 83841 9999.00 9999.000 9999.000 9999.000 9999.000 2.654 9999.000 84021 9999.00 9999.000 9999.000 9999.000 9999.000 2.570 9999.000 84201 9999.00 9999.000 9999.000 9999.000 9999.000 2.017 9999.000 84741 9999.00 9999.000 9999.000 9999.000 9999.000 3.459 9999.000 84921 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85101 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85461 9999.00 9999.000 9999.000 9999.000 9999.000 3.292 9999.000 85641 9999.00 9999.000 9999.000 9999.000 9999.000 3.112 9999.000 85821 9999.00 9999.000 9999.000 9999.000 9999.000 2.692 9999.000 86181 9999.00 9999.000 9999.000 9999.000 9999.000 2.427 9999.000 86361 9999.00 9999.000 9999.000 9999.000 9999.000 2.662 9999.000 86541 9999.00 9999.000 9999.000 9999.000 9999.000 2.656 9999.000 86901 9999.00 9999.000 9999.000 9999.000 9999.000 2.606 9999.000 87081 9999.00 9999.000 9999.000 9999.000 9999.000 2.583 9999.000 87260 9999.00 9999.000 9999.000 9999.000 9999.000 2.364 9999.000 87801 9999.00 9999.000 9999.000 9999.000 9999.000 1.983 9999.000 87981 9999.00 9999.000 9999.000 9999.000 9999.000 2.056 9999.000 88161 9999.00 9999.000 9999.000 9999.000 9999.000 2.108 9999.000 88521 9999.00 9999.000 9999.000 9999.000 9999.000 2.372 9999.000 88701 9999.00 9999.000 9999.000 9999.000 9999.000 2.405 9999.000 88881 9999.00 9999.000 9999.000 9999.000 9999.000 2.347 9999.000 89241 9999.00 9999.000 9999.000 9999.000 9999.000 2.305 9999.000 89421 9999.00 9999.000 9999.000 9999.000 9999.000 2.268 9999.000 89601 9999.00 9999.000 9999.000 9999.000 9999.000 2.358 9999.000 89961 9999.00 9999.000 9999.000 9999.000 9999.000 2.241 9999.000 90141 9999.00 9999.000 9999.000 9999.000 9999.000 2.283 9999.000 90321 9999.00 9999.000 9999.000 9999.000 9999.000 2.231 9999.000 90861 9999.00 9999.000 9999.000 9999.000 9999.000 2.197 9999.000 91041 9999.00 9999.000 9999.000 9999.000 9999.000 2.080 9999.000 91221 9999.00 9999.000 9999.000 9999.000 9999.000 2.130 9999.000 91581 9999.00 9999.000 9999.000 9999.000 9999.000 2.071 9999.000 91761 9999.00 9999.000 9999.000 9999.000 9999.000 2.024 9999.000 91941 9999.00 9999.000 9999.000 9999.000 9999.000 2.117 9999.000 92301 9999.00 9999.000 9999.000 9999.000 9999.000 2.148 9999.000 92481 9999.00 9999.000 9999.000 9999.000 9999.000 2.114 9999.000 92660 9999.00 9999.000 9999.000 9999.000 9999.000 2.147 9999.000 93021 9999.00 9999.000 9999.000 9999.000 9999.000 2.133 9999.000 93201 9999.00 9999.000 9999.000 9999.000 9999.000 2.084 9999.000 93381 9999.00 9999.000 9999.000 9999.000 9999.000 2.007 9999.000 93921 9999.00 9999.000 9999.000 9999.000 9999.000 1.816 9999.000 94101 9999.00 9999.000 9999.000 9999.000 9999.000 1.731 9999.000 94281 9999.00 9999.000 9999.000 9999.000 9999.000 1.648 9999.000 94641 9999.00 9999.000 9999.000 9999.000 9999.000 1.688 9999.000 94821 9999.00 9999.000 9999.000 9999.000 9999.000 1.678 9999.000 95001 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 95361 9999.00 9999.000 9999.000 9999.000 9999.000 1.711 9999.000 95541 9999.00 9999.000 9999.000 9999.000 9999.000 1.755 9999.000 95721 9999.00 9999.000 9999.000 9999.000 9999.000 1.718 9999.000 96081 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 96261 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 96441 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 96981 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 97161 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 97341 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 97701 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 97881 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 98061 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 98421 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 98601 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 98781 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99141 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99321 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99501 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 100041 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000