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 07 30 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 72282 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72462 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72642 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73002 9999.00 9999.000 9999.000 9999.000 9999.000 3.263 9999.000 73182 9999.00 9999.000 9999.000 9999.000 9999.000 3.056 9999.000 73362 9999.00 9999.000 9999.000 9999.000 9999.000 2.870 9999.000 73722 9999.00 9999.000 9999.000 9999.000 9999.000 2.409 9999.000 73902 9999.00 9999.000 9999.000 9999.000 9999.000 2.320 9999.000 74082 9999.00 9999.000 9999.000 9999.000 9999.000 2.278 9999.000 74442 9999.00 9999.000 9999.000 9999.000 9999.000 2.335 9999.000 74622 9999.00 9999.000 9999.000 9999.000 9999.000 2.241 9999.000 74802 9999.00 9999.000 9999.000 9999.000 9999.000 2.206 9999.000 75162 9999.00 9999.000 9999.000 9999.000 9999.000 2.251 9999.000 75342 9999.00 9999.000 9999.000 9999.000 9999.000 2.309 9999.000 75522 9999.00 9999.000 9999.000 9999.000 9999.000 1.824 9999.000 75881 9999.00 9999.000 9999.000 9999.000 9999.000 1.706 9999.000 76062 9999.00 9999.000 9999.000 9999.000 9999.000 1.629 9999.000 76242 9999.00 9999.000 9999.000 9999.000 9999.000 1.571 9999.000 76602 9999.00 9999.000 9999.000 9999.000 9999.000 1.566 9999.000 76782 9999.00 9999.000 9999.000 9999.000 9999.000 1.588 9999.000 76962 9999.00 9999.000 9999.000 9999.000 9999.000 1.620 9999.000 77502 9999.00 9999.000 9999.000 9999.000 9999.000 1.588 9999.000 77682 9999.00 9999.000 9999.000 9999.000 9999.000 1.594 9999.000 77862 9999.00 9999.000 9999.000 9999.000 9999.000 1.537 9999.000 78222 9999.00 9999.000 9999.000 9999.000 9999.000 1.413 9999.000 78582 9999.00 9999.000 9999.000 9999.000 9999.000 1.461 9999.000 78942 9999.00 9999.000 9999.000 9999.000 9999.000 1.495 9999.000 79122 9999.00 9999.000 9999.000 9999.000 9999.000 1.229 9999.000 79302 9999.00 9999.000 9999.000 9999.000 9999.000 1.210 9999.000 79662 9999.00 9999.000 9999.000 9999.000 9999.000 1.216 9999.000 80022 9999.00 9999.000 9999.000 9999.000 9999.000 1.277 9999.000 80382 9999.00 9999.000 9999.000 9999.000 9999.000 1.281 9999.000 80562 9999.00 9999.000 9999.000 9999.000 9999.000 1.310 9999.000 80742 9999.00 9999.000 9999.000 9999.000 9999.000 1.316 9999.000 81102 9999.00 9999.000 9999.000 9999.000 9999.000 1.368 9999.000 81282 9999.00 9999.000 9999.000 9999.000 9999.000 1.317 9999.000 81462 9999.00 9999.000 9999.000 9999.000 9999.000 1.296 9999.000 81822 9999.00 9999.000 9999.000 9999.000 9999.000 1.138 9999.000 82002 9999.00 9999.000 9999.000 9999.000 9999.000 1.241 9999.000 82182 9999.00 9999.000 9999.000 9999.000 9999.000 1.196 9999.000 82722 9999.00 9999.000 9999.000 9999.000 9999.000 1.139 9999.000 82902 9999.00 9999.000 9999.000 9999.000 9999.000 1.091 9999.000 83082 9999.00 9999.000 9999.000 9999.000 9999.000 1.146 9999.000 83442 9999.00 9999.000 9999.000 9999.000 9999.000 1.283 9999.000 83622 9999.00 9999.000 9999.000 9999.000 9999.000 1.217 9999.000 83802 9999.00 9999.000 9999.000 9999.000 9999.000 1.117 9999.000 84162 9999.00 9999.000 9999.000 9999.000 9999.000 1.253 9999.000 84342 9999.00 9999.000 9999.000 9999.000 9999.000 1.196 9999.000 84522 9999.00 9999.000 9999.000 9999.000 9999.000 1.193 9999.000 84882 9999.00 9999.000 9999.000 9999.000 9999.000 1.187 9999.000 85062 9999.00 9999.000 9999.000 9999.000 9999.000 1.226 9999.000 85242 9999.00 9999.000 9999.000 9999.000 9999.000 1.263 9999.000 85602 9999.00 9999.000 9999.000 9999.000 9999.000 1.298 9999.000 85782 9999.00 9999.000 9999.000 9999.000 9999.000 1.270 9999.000 85962 9999.00 9999.000 9999.000 9999.000 9999.000 1.320 9999.000 86322 9999.00 9999.000 9999.000 9999.000 9999.000 1.234 9999.000 86502 9999.00 9999.000 9999.000 9999.000 9999.000 1.582 9999.000 86682 9999.00 9999.000 9999.000 9999.000 9999.000 2.246 9999.000 87042 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87222 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87402 9999.00 9999.000 9999.000 9999.000 9999.000 2.463 9999.000 87942 9999.00 9999.000 9999.000 9999.000 9999.000 1.562 9999.000 88122 9999.00 9999.000 9999.000 9999.000 9999.000 1.182 9999.000 88302 9999.00 9999.000 9999.000 9999.000 9999.000 1.067 9999.000 88662 9999.00 9999.000 9999.000 9999.000 9999.000 1.047 9999.000 88842 9999.00 9999.000 9999.000 9999.000 9999.000 1.054 9999.000 89022 9999.00 9999.000 9999.000 9999.000 9999.000 1.054 9999.000 89382 9999.00 9999.000 9999.000 9999.000 9999.000 1.065 9999.000 89562 9999.00 9999.000 9999.000 9999.000 9999.000 1.066 9999.000 89742 9999.00 9999.000 9999.000 9999.000 9999.000 1.118 9999.000 90102 9999.00 9999.000 9999.000 9999.000 9999.000 1.183 9999.000 90282 9999.00 9999.000 9999.000 9999.000 9999.000 1.178 9999.000 90462 9999.00 9999.000 9999.000 9999.000 9999.000 1.186 9999.000 90822 9999.00 9999.000 9999.000 9999.000 9999.000 1.222 9999.000 91002 9999.00 9999.000 9999.000 9999.000 9999.000 1.254 9999.000 91182 9999.00 9999.000 9999.000 9999.000 9999.000 1.284 9999.000 91542 9999.00 9999.000 9999.000 9999.000 9999.000 1.323 9999.000 91722 9999.00 9999.000 9999.000 9999.000 9999.000 1.318 9999.000 91902 9999.00 9999.000 9999.000 9999.000 9999.000 1.279 9999.000 92262 9999.00 9999.000 9999.000 9999.000 9999.000 1.273 9999.000 92442 9999.00 9999.000 9999.000 9999.000 9999.000 1.274 9999.000 92622 9999.00 9999.000 9999.000 9999.000 9999.000 1.314 9999.000 93162 9999.00 9999.000 9999.000 9999.000 9999.000 1.249 9999.000 93342 9999.00 9999.000 9999.000 9999.000 9999.000 1.224 9999.000 93522 9999.00 9999.000 9999.000 9999.000 9999.000 1.223 9999.000 93882 9999.00 9999.000 9999.000 9999.000 9999.000 1.212 9999.000 94062 9999.00 9999.000 9999.000 9999.000 9999.000 1.076 9999.000 94242 9999.00 9999.000 9999.000 9999.000 9999.000 1.102 9999.000 94602 9999.00 9999.000 9999.000 9999.000 9999.000 1.071 9999.000 94782 9999.00 9999.000 9999.000 9999.000 9999.000 1.093 9999.000 94962 9999.00 9999.000 9999.000 9999.000 9999.000 1.050 9999.000 95322 9999.00 9999.000 9999.000 9999.000 9999.000 0.993 9999.000 95502 9999.00 9999.000 9999.000 9999.000 9999.000 0.999 9999.000 95682 9999.00 9999.000 9999.000 9999.000 9999.000 0.979 9999.000 96042 9999.00 9999.000 9999.000 9999.000 9999.000 0.986 9999.000 96222 9999.00 9999.000 9999.000 9999.000 9999.000 1.007 9999.000 96402 9999.00 9999.000 9999.000 9999.000 9999.000 1.006 9999.000 96762 9999.00 9999.000 9999.000 9999.000 9999.000 0.993 9999.000 96942 9999.00 9999.000 9999.000 9999.000 9999.000 1.013 9999.000 97122 9999.00 9999.000 9999.000 9999.000 9999.000 0.983 9999.000 97482 9999.00 9999.000 9999.000 9999.000 9999.000 0.941 9999.000 97662 9999.00 9999.000 9999.000 9999.000 9999.000 0.958 9999.000 97842 9999.00 9999.000 9999.000 9999.000 9999.000 1.027 9999.000 98202 9999.00 9999.000 9999.000 9999.000 9999.000 1.364 9999.000 98382 9999.00 9999.000 9999.000 9999.000 9999.000 1.412 9999.000 98562 9999.00 9999.000 9999.000 9999.000 9999.000 1.545 9999.000 98922 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99102 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99282 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99642 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99822 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000