74 1001 ELKINS, JAMES; WAMSLEY, PAULA; HURST, DALE; ROMASHKIN, PAVEL; DUTTON, GEOFF U.S. DEPT OF COMMERCE, NOAA / CMDL / NITROUS OXIDE AND HALOCOMPOUNDS DIVISION ACATS STRAT 1 1 1996 12 09 1998 07 23 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) 52 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. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 79761 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79941 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80121 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80301 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80661 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80841 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81021 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81201 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81561 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81741 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81921 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82101 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82461 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82641 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 82821 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83001 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83361 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83541 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83721 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84261 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84441 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84621 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84801 -0.07 19.073 18.775 0.297 3.505 3.398 0.107 85161 -0.08 19.075 18.739 0.335 3.504 3.401 0.103 85341 0.28 18.985 18.549 0.436 3.521 3.391 0.130 85521 -0.08 19.073 18.729 0.344 3.505 3.407 0.098 86061 -0.32 19.132 18.560 0.572 3.492 3.388 0.104 86241 -0.06 19.069 18.612 0.457 3.505 3.401 0.105 86421 -0.06 19.070 18.247 0.823 3.505 3.371 0.134 86601 0.05 19.043 17.862 1.181 3.511 3.339 0.172 86961 2.77 18.301 7.450 10.851 3.578 2.159 1.419 87321 2.65 18.335 7.657 10.678 3.578 2.195 1.383 87501 3.26 18.154 6.661 11.492 3.576 2.028 1.549 87861 3.16 18.184 5.853 12.331 3.577 1.908 1.669 88041 3.78 17.991 5.204 12.787 3.570 1.817 1.753 88221 3.75 17.999 5.077 12.922 3.570 1.779 1.791 88401 3.84 17.972 5.101 12.870 3.569 1.799 1.769 88761 3.53 18.069 5.662 12.407 3.573 1.897 1.677 88941 3.80 17.984 5.672 12.312 3.569 1.883 1.686 89121 3.87 17.962 5.008 12.954 3.568 1.789 1.779 89301 3.96 17.935 5.062 12.874 3.567 1.775 1.792 89661 4.37 17.803 4.423 13.380 3.557 1.655 1.901 89841 4.18 17.865 4.470 13.395 3.562 1.691 1.870 90021 3.45 18.093 5.228 12.865 3.574 1.806 1.768 90561 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90741 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 90921 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000