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 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 72807 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72987 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73167 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73527 9999.00 9999.000 9999.000 9999.000 9999.000 2.455 9999.000 73707 9999.00 9999.000 9999.000 9999.000 9999.000 2.352 9999.000 73887 9999.00 9999.000 9999.000 9999.000 9999.000 2.188 9999.000 74247 9999.00 9999.000 9999.000 9999.000 9999.000 1.515 9999.000 74427 9999.00 9999.000 9999.000 9999.000 9999.000 1.548 9999.000 74607 9999.00 9999.000 9999.000 9999.000 9999.000 1.449 9999.000 74967 9999.00 9999.000 9999.000 9999.000 9999.000 1.478 9999.000 75147 9999.00 9999.000 9999.000 9999.000 9999.000 1.511 9999.000 75327 9999.00 9999.000 9999.000 9999.000 9999.000 1.516 9999.000 75687 9999.00 9999.000 9999.000 9999.000 9999.000 1.853 9999.000 75867 9999.00 9999.000 9999.000 9999.000 9999.000 1.941 9999.000 76047 9999.00 9999.000 9999.000 9999.000 9999.000 1.853 9999.000 76407 9999.00 9999.000 9999.000 9999.000 9999.000 1.959 9999.000 76587 9999.00 9999.000 9999.000 9999.000 9999.000 2.040 9999.000 76767 9999.00 9999.000 9999.000 9999.000 9999.000 2.027 9999.000 77127 9999.00 9999.000 9999.000 9999.000 9999.000 2.026 9999.000 77307 9999.00 9999.000 9999.000 9999.000 9999.000 2.147 9999.000 77487 9999.00 9999.000 9999.000 9999.000 9999.000 2.029 9999.000 78027 9999.00 9999.000 9999.000 9999.000 9999.000 2.047 9999.000 78207 9999.00 9999.000 9999.000 9999.000 9999.000 2.111 9999.000 78387 9999.00 9999.000 9999.000 9999.000 9999.000 2.115 9999.000 78747 9999.00 9999.000 9999.000 9999.000 9999.000 2.229 9999.000 79107 9999.00 9999.000 9999.000 9999.000 9999.000 2.188 9999.000 79467 9999.00 9999.000 9999.000 9999.000 9999.000 2.187 9999.000 79647 9999.00 9999.000 9999.000 9999.000 9999.000 2.203 9999.000 79827 9999.00 9999.000 9999.000 9999.000 9999.000 2.195 9999.000 80187 9999.00 9999.000 9999.000 9999.000 9999.000 2.138 9999.000 80547 9999.00 9999.000 9999.000 9999.000 9999.000 2.181 9999.000 80907 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81087 9999.00 9999.000 9999.000 9999.000 9999.000 2.183 9999.000 81267 9999.00 9999.000 9999.000 9999.000 9999.000 1.986 9999.000 81627 9999.00 9999.000 9999.000 9999.000 9999.000 1.512 9999.000 81807 9999.00 9999.000 9999.000 9999.000 9999.000 1.518 9999.000 81987 9999.00 9999.000 9999.000 9999.000 9999.000 1.507 9999.000 82347 9999.00 9999.000 9999.000 9999.000 9999.000 1.587 9999.000 82527 9999.00 9999.000 9999.000 9999.000 9999.000 1.604 9999.000 82707 9999.00 9999.000 9999.000 9999.000 9999.000 1.646 9999.000 83247 9999.00 9999.000 9999.000 9999.000 9999.000 1.685 9999.000 83427 9999.00 9999.000 9999.000 9999.000 9999.000 1.675 9999.000 83607 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83967 9999.00 9999.000 9999.000 9999.000 9999.000 1.503 9999.000 84147 9999.00 9999.000 9999.000 9999.000 9999.000 1.430 9999.000 84327 9999.00 9999.000 9999.000 9999.000 9999.000 1.496 9999.000 84687 9999.00 9999.000 9999.000 9999.000 9999.000 1.376 9999.000 84867 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85047 9999.00 9999.000 9999.000 9999.000 9999.000 1.446 9999.000 85407 9999.00 9999.000 9999.000 9999.000 9999.000 1.286 9999.000 85587 9999.00 9999.000 9999.000 9999.000 9999.000 1.345 9999.000 85767 9999.00 9999.000 9999.000 9999.000 9999.000 1.358 9999.000 86127 9999.00 9999.000 9999.000 9999.000 9999.000 1.591 9999.000 86307 9999.00 9999.000 9999.000 9999.000 9999.000 1.642 9999.000 86487 9999.00 9999.000 9999.000 9999.000 9999.000 1.630 9999.000 86847 9999.00 9999.000 9999.000 9999.000 9999.000 1.624 9999.000 87027 9999.00 9999.000 9999.000 9999.000 9999.000 2.258 9999.000 87207 9999.00 9999.000 9999.000 9999.000 9999.000 2.450 9999.000 87567 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87747 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 87927 9999.00 9999.000 9999.000 9999.000 9999.000 2.441 9999.000 88467 9999.00 9999.000 9999.000 9999.000 9999.000 2.012 9999.000 88647 9999.00 9999.000 9999.000 9999.000 9999.000 1.889 9999.000 88827 9999.00 9999.000 9999.000 9999.000 9999.000 1.633 9999.000 89187 9999.00 9999.000 9999.000 9999.000 9999.000 1.631 9999.000 89367 9999.00 9999.000 9999.000 9999.000 9999.000 1.681 9999.000 89547 9999.00 9999.000 9999.000 9999.000 9999.000 1.663 9999.000 89907 9999.00 9999.000 9999.000 9999.000 9999.000 1.750 9999.000 90087 9999.00 9999.000 9999.000 9999.000 9999.000 1.661 9999.000 90267 9999.00 9999.000 9999.000 9999.000 9999.000 1.662 9999.000 90627 9999.00 9999.000 9999.000 9999.000 9999.000 1.793 9999.000 90807 9999.00 9999.000 9999.000 9999.000 9999.000 1.780 9999.000 90987 9999.00 9999.000 9999.000 9999.000 9999.000 2.028 9999.000 91347 9999.00 9999.000 9999.000 9999.000 9999.000 2.185 9999.000 91527 9999.00 9999.000 9999.000 9999.000 9999.000 2.170 9999.000 91707 9999.00 9999.000 9999.000 9999.000 9999.000 2.435 9999.000 92067 9999.00 9999.000 9999.000 9999.000 9999.000 2.550 9999.000 92247 9999.00 9999.000 9999.000 9999.000 9999.000 2.492 9999.000 92427 9999.00 9999.000 9999.000 9999.000 9999.000 2.440 9999.000 92787 9999.00 9999.000 9999.000 9999.000 9999.000 2.457 9999.000 92967 9999.00 9999.000 9999.000 9999.000 9999.000 2.486 9999.000 93147 9999.00 9999.000 9999.000 9999.000 9999.000 2.456 9999.000 93687 9999.00 9999.000 9999.000 9999.000 9999.000 2.461 9999.000 93867 9999.00 9999.000 9999.000 9999.000 9999.000 2.429 9999.000 94047 9999.00 9999.000 9999.000 9999.000 9999.000 2.451 9999.000 94407 9999.00 9999.000 9999.000 9999.000 9999.000 2.369 9999.000 94587 9999.00 9999.000 9999.000 9999.000 9999.000 2.330 9999.000 94767 9999.00 9999.000 9999.000 9999.000 9999.000 2.309 9999.000 95127 9999.00 9999.000 9999.000 9999.000 9999.000 2.324 9999.000 95307 9999.00 9999.000 9999.000 9999.000 9999.000 2.306 9999.000 95487 9999.00 9999.000 9999.000 9999.000 9999.000 2.276 9999.000 95847 9999.00 9999.000 9999.000 9999.000 9999.000 2.187 9999.000 96027 9999.00 9999.000 9999.000 9999.000 9999.000 2.092 9999.000 96207 9999.00 9999.000 9999.000 9999.000 9999.000 2.057 9999.000 96567 9999.00 9999.000 9999.000 9999.000 9999.000 2.220 9999.000 96747 9999.00 9999.000 9999.000 9999.000 9999.000 2.171 9999.000 96927 9999.00 9999.000 9999.000 9999.000 9999.000 2.099 9999.000 97287 9999.00 9999.000 9999.000 9999.000 9999.000 1.951 9999.000 97467 9999.00 9999.000 9999.000 9999.000 9999.000 2.041 9999.000 97647 9999.00 9999.000 9999.000 9999.000 9999.000 1.825 9999.000 98007 9999.00 9999.000 9999.000 9999.000 9999.000 1.446 9999.000 98187 9999.00 9999.000 9999.000 9999.000 9999.000 1.478 9999.000 98367 9999.00 9999.000 9999.000 9999.000 9999.000 1.457 9999.000 98727 9999.00 9999.000 9999.000 9999.000 9999.000 1.255 9999.000 98907 9999.00 9999.000 9999.000 9999.000 9999.000 1.342 9999.000 99087 9999.00 9999.000 9999.000 9999.000 9999.000 2.592 9999.000 99447 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99627 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99807 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 100167 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000