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 24 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 75239 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75420 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75600 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75959 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76139 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76320 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76680 9999.00 9999.000 9999.000 9999.000 9999.000 1.861 9999.000 76860 9999.00 9999.000 9999.000 9999.000 9999.000 1.889 9999.000 77039 9999.00 9999.000 9999.000 9999.000 9999.000 1.681 9999.000 77580 9999.00 9999.000 9999.000 9999.000 9999.000 1.491 9999.000 77760 9999.00 9999.000 9999.000 9999.000 9999.000 1.425 9999.000 77940 9999.00 9999.000 9999.000 9999.000 9999.000 1.438 9999.000 78299 9999.00 9999.000 9999.000 9999.000 9999.000 1.547 9999.000 78479 9999.00 9999.000 9999.000 9999.000 9999.000 1.508 9999.000 78660 9999.00 9999.000 9999.000 9999.000 9999.000 1.409 9999.000 79020 9999.00 9999.000 9999.000 9999.000 9999.000 1.820 9999.000 79200 9999.00 9999.000 9999.000 9999.000 9999.000 1.863 9999.000 79380 9999.00 9999.000 9999.000 9999.000 9999.000 1.968 9999.000 79740 9999.00 9999.000 9999.000 9999.000 9999.000 1.895 9999.000 79920 9999.00 9999.000 9999.000 9999.000 9999.000 1.931 9999.000 80100 9999.00 9999.000 9999.000 9999.000 9999.000 1.978 9999.000 80639 9999.00 9999.000 9999.000 9999.000 9999.000 2.011 9999.000 80820 9999.00 9999.000 9999.000 9999.000 9999.000 2.016 9999.000 81000 9999.00 9999.000 9999.000 9999.000 9999.000 2.033 9999.000 81359 9999.00 9999.000 9999.000 9999.000 9999.000 2.066 9999.000 81539 9999.00 9999.000 9999.000 9999.000 9999.000 2.003 9999.000 81719 9999.00 9999.000 9999.000 9999.000 9999.000 1.658 9999.000 82080 9999.00 9999.000 9999.000 9999.000 9999.000 1.721 9999.000 82260 9999.00 9999.000 9999.000 9999.000 9999.000 1.329 9999.000 82440 9999.00 9999.000 9999.000 9999.000 9999.000 1.598 9999.000 82799 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82980 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83160 9999.00 9999.000 9999.000 9999.000 9999.000 1.605 9999.000 83699 9999.00 9999.000 9999.000 9999.000 9999.000 1.595 9999.000 84060 9999.00 9999.000 9999.000 9999.000 9999.000 1.467 9999.000 84420 9999.00 9999.000 9999.000 9999.000 9999.000 1.737 9999.000 84600 9999.00 9999.000 9999.000 9999.000 9999.000 1.841 9999.000 84779 9999.00 9999.000 9999.000 9999.000 9999.000 1.665 9999.000 85140 9999.00 9999.000 9999.000 9999.000 9999.000 1.336 9999.000 85500 9999.00 9999.000 9999.000 9999.000 9999.000 1.637 9999.000 85859 9999.00 9999.000 9999.000 9999.000 9999.000 1.538 9999.000 86039 9999.00 9999.000 9999.000 9999.000 9999.000 1.125 9999.000 86220 9999.00 9999.000 9999.000 9999.000 9999.000 1.152 9999.000 86759 9999.00 9999.000 9999.000 9999.000 9999.000 1.248 9999.000 86939 9999.00 9999.000 9999.000 9999.000 9999.000 1.190 9999.000 87119 9999.00 9999.000 9999.000 9999.000 9999.000 1.179 9999.000 87480 9999.00 9999.000 9999.000 9999.000 9999.000 1.175 9999.000 87660 9999.00 9999.000 9999.000 9999.000 9999.000 1.270 9999.000 87840 9999.00 9999.000 9999.000 9999.000 9999.000 1.373 9999.000 88199 9999.00 9999.000 9999.000 9999.000 9999.000 1.380 9999.000 88380 9999.00 9999.000 9999.000 9999.000 9999.000 1.199 9999.000 88560 9999.00 9999.000 9999.000 9999.000 9999.000 1.553 9999.000 88919 9999.00 9999.000 9999.000 9999.000 9999.000 1.770 9999.000 89099 9999.00 9999.000 9999.000 9999.000 9999.000 1.955 9999.000 89279 9999.00 9999.000 9999.000 9999.000 9999.000 1.874 9999.000 89820 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 89999 9999.00 9999.000 9999.000 9999.000 9999.000 1.466 9999.000 90180 9999.00 9999.000 9999.000 9999.000 9999.000 1.462 9999.000 90540 9999.00 9999.000 9999.000 9999.000 9999.000 1.540 9999.000 90720 9999.00 9999.000 9999.000 9999.000 9999.000 1.553 9999.000 90900 9999.00 9999.000 9999.000 9999.000 9999.000 1.471 9999.000 91259 9999.00 9999.000 9999.000 9999.000 9999.000 1.460 9999.000 91439 9999.00 9999.000 9999.000 9999.000 9999.000 1.490 9999.000 91620 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 91980 9999.00 9999.000 9999.000 9999.000 9999.000 1.092 9999.000 92159 9999.00 9999.000 9999.000 9999.000 9999.000 1.089 9999.000 92339 9999.00 9999.000 9999.000 9999.000 9999.000 1.198 9999.000 92880 9999.00 9999.000 9999.000 9999.000 9999.000 1.263 9999.000 93060 9999.00 9999.000 9999.000 9999.000 9999.000 1.306 9999.000 93239 9999.00 9999.000 9999.000 9999.000 9999.000 1.312 9999.000 93599 9999.00 9999.000 9999.000 9999.000 9999.000 1.094 9999.000 93780 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 93960 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 94319 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 94499 9999.00 9999.000 9999.000 9999.000 9999.000 1.235 9999.000 94679 9999.00 9999.000 9999.000 9999.000 9999.000 1.355 9999.000 95040 9999.00 9999.000 9999.000 9999.000 9999.000 1.238 9999.000 95220 9999.00 9999.000 9999.000 9999.000 9999.000 1.172 9999.000 95399 9999.00 9999.000 9999.000 9999.000 9999.000 1.257 9999.000 95940 9999.00 9999.000 9999.000 9999.000 9999.000 1.207 9999.000 96120 9999.00 9999.000 9999.000 9999.000 9999.000 1.360 9999.000 96300 9999.00 9999.000 9999.000 9999.000 9999.000 1.406 9999.000 96659 9999.00 9999.000 9999.000 9999.000 9999.000 1.327 9999.000 96839 9999.00 9999.000 9999.000 9999.000 9999.000 1.131 9999.000 97020 9999.00 9999.000 9999.000 9999.000 9999.000 1.019 9999.000 97380 9999.00 9999.000 9999.000 9999.000 9999.000 1.048 9999.000 97559 9999.00 9999.000 9999.000 9999.000 9999.000 0.962 9999.000 97739 9999.00 9999.000 9999.000 9999.000 9999.000 1.061 9999.000 98100 9999.00 9999.000 9999.000 9999.000 9999.000 1.263 9999.000 98280 9999.00 9999.000 9999.000 9999.000 9999.000 1.519 9999.000 98460 9999.00 9999.000 9999.000 9999.000 9999.000 1.503 9999.000 98999 9999.00 9999.000 9999.000 9999.000 9999.000 1.501 9999.000 99180 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99360 9999.00 9999.000 9999.000 9999.000 9999.000 1.550 9999.000 99719 9999.00 9999.000 9999.000 9999.000 9999.000 1.491 9999.000 99899 9999.00 9999.000 9999.000 9999.000 9999.000 1.215 9999.000 100079 9999.00 9999.000 9999.000 9999.000 9999.000 1.637 9999.000 100440 9999.00 9999.000 9999.000 9999.000 9999.000 2.648 9999.000 100620 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 100799 9999.00 9999.000 9999.000 9999.000 9999.000 2.573 9999.000 101160 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 101340 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 101520 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000