77 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 10 13 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) 55 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 N2O. To calculate CH3CCl3 ATLAS N2O was used. ACATS did not measure SF6 on this flight. Mean age of air cannot be calculated. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 77051 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77230 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77411 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77771 9999.00 9999.000 11.209 9999.000 9999.000 2.823 9999.000 77951 9999.00 9999.000 7.384 9999.000 9999.000 2.239 9999.000 78131 9999.00 9999.000 8.556 9999.000 9999.000 2.421 9999.000 78491 9999.00 9999.000 6.387 9999.000 9999.000 2.081 9999.000 78671 9999.00 9999.000 6.158 9999.000 9999.000 2.060 9999.000 78851 9999.00 9999.000 7.419 9999.000 9999.000 2.229 9999.000 79210 9999.00 9999.000 4.806 9999.000 9999.000 1.812 9999.000 79391 9999.00 9999.000 4.366 9999.000 9999.000 1.747 9999.000 79571 9999.00 9999.000 2.443 9999.000 9999.000 1.319 9999.000 79931 9999.00 9999.000 7.131 9999.000 9999.000 2.260 9999.000 80111 9999.00 9999.000 5.465 9999.000 9999.000 1.969 9999.000 80291 9999.00 9999.000 5.091 9999.000 9999.000 1.901 9999.000 80651 9999.00 9999.000 4.570 9999.000 9999.000 1.804 9999.000 80831 9999.00 9999.000 4.509 9999.000 9999.000 1.823 9999.000 81011 9999.00 9999.000 4.992 9999.000 9999.000 1.866 9999.000 81371 9999.00 9999.000 5.325 9999.000 9999.000 1.912 9999.000 81550 9999.00 9999.000 5.299 9999.000 9999.000 1.915 9999.000 81730 9999.00 9999.000 4.799 9999.000 9999.000 1.828 9999.000 82271 9999.00 9999.000 4.413 9999.000 9999.000 1.795 9999.000 82451 9999.00 9999.000 4.748 9999.000 9999.000 1.845 9999.000 82630 9999.00 9999.000 4.631 9999.000 9999.000 1.815 9999.000 82991 9999.00 9999.000 5.078 9999.000 9999.000 1.890 9999.000 83351 9999.00 9999.000 4.520 9999.000 9999.000 1.783 9999.000 83711 9999.00 9999.000 4.107 9999.000 9999.000 1.683 9999.000 83891 9999.00 9999.000 3.729 9999.000 9999.000 1.630 9999.000 84071 9999.00 9999.000 3.407 9999.000 9999.000 1.561 9999.000 84431 9999.00 9999.000 4.327 9999.000 9999.000 1.736 9999.000 84790 9999.00 9999.000 4.142 9999.000 9999.000 1.694 9999.000 85151 9999.00 9999.000 4.428 9999.000 9999.000 1.764 9999.000 85331 9999.00 9999.000 4.610 9999.000 9999.000 1.789 9999.000 85511 9999.00 9999.000 4.415 9999.000 9999.000 1.768 9999.000 85870 9999.00 9999.000 4.577 9999.000 9999.000 1.799 9999.000 86051 9999.00 9999.000 3.714 9999.000 9999.000 1.623 9999.000 86231 9999.00 9999.000 5.002 9999.000 9999.000 1.892 9999.000 86591 9999.00 9999.000 6.743 9999.000 9999.000 2.102 9999.000 86771 9999.00 9999.000 8.279 9999.000 9999.000 2.362 9999.000 86951 9999.00 9999.000 7.552 9999.000 9999.000 2.274 9999.000 87491 9999.00 9999.000 7.974 9999.000 9999.000 2.393 9999.000 87671 9999.00 9999.000 7.400 9999.000 9999.000 2.286 9999.000 87850 9999.00 9999.000 6.781 9999.000 9999.000 2.198 9999.000 88210 9999.00 9999.000 3.675 9999.000 9999.000 1.593 9999.000 88391 9999.00 9999.000 3.883 9999.000 9999.000 1.636 9999.000 88571 9999.00 9999.000 4.610 9999.000 9999.000 1.779 9999.000 88931 9999.00 9999.000 3.743 9999.000 9999.000 1.611 9999.000 89110 9999.00 9999.000 3.826 9999.000 9999.000 1.611 9999.000 89291 9999.00 9999.000 1.984 9999.000 9999.000 1.154 9999.000 89651 9999.00 9999.000 2.531 9999.000 9999.000 1.327 9999.000 89831 9999.00 9999.000 0.789 9999.000 9999.000 0.758 9999.000 90010 9999.00 9999.000 0.929 9999.000 9999.000 0.816 9999.000 90371 9999.00 9999.000 1.112 9999.000 9999.000 0.892 9999.000 90551 9999.00 9999.000 1.689 9999.000 9999.000 1.074 9999.000 90731 9999.00 9999.000 2.526 9999.000 9999.000 1.282 9999.000 91090 9999.00 9999.000 1.760 9999.000 9999.000 1.053 9999.000 91270 9999.00 9999.000 2.729 9999.000 9999.000 1.319 9999.000 91451 9999.00 9999.000 1.690 9999.000 9999.000 1.057 9999.000 91811 9999.00 9999.000 1.256 9999.000 9999.000 0.912 9999.000 91991 9999.00 9999.000 1.028 9999.000 9999.000 0.857 9999.000 92171 9999.00 9999.000 0.883 9999.000 9999.000 0.785 9999.000 92711 9999.00 9999.000 3.275 9999.000 9999.000 1.525 9999.000 92891 9999.00 9999.000 3.440 9999.000 9999.000 1.565 9999.000 93071 9999.00 9999.000 3.115 9999.000 9999.000 1.497 9999.000 93431 9999.00 9999.000 3.003 9999.000 9999.000 1.480 9999.000 93611 9999.00 9999.000 2.945 9999.000 9999.000 1.463 9999.000 93791 9999.00 9999.000 3.535 9999.000 9999.000 1.587 9999.000 94151 9999.00 9999.000 3.704 9999.000 9999.000 1.626 9999.000 94331 9999.00 9999.000 3.821 9999.000 9999.000 1.654 9999.000 94511 9999.00 9999.000 3.364 9999.000 9999.000 1.575 9999.000 94871 9999.00 9999.000 3.164 9999.000 9999.000 1.540 9999.000 95051 9999.00 9999.000 3.723 9999.000 9999.000 1.664 9999.000 95231 9999.00 9999.000 3.650 9999.000 9999.000 1.626 9999.000 95591 9999.00 9999.000 4.329 9999.000 9999.000 1.769 9999.000 95771 9999.00 9999.000 4.145 9999.000 9999.000 1.745 9999.000 95951 9999.00 9999.000 3.364 9999.000 9999.000 1.534 9999.000 96311 9999.00 9999.000 4.079 9999.000 9999.000 1.726 9999.000 96490 9999.00 9999.000 4.042 9999.000 9999.000 1.732 9999.000 96671 9999.00 9999.000 4.824 9999.000 9999.000 1.872 9999.000 97031 9999.00 9999.000 5.168 9999.000 9999.000 1.920 9999.000 97211 9999.00 9999.000 4.933 9999.000 9999.000 1.856 9999.000 97391 9999.00 9999.000 4.866 9999.000 9999.000 1.836 9999.000 97931 9999.00 9999.000 4.665 9999.000 9999.000 1.837 9999.000 98111 9999.00 9999.000 3.229 9999.000 9999.000 1.523 9999.000 98291 9999.00 9999.000 4.369 9999.000 9999.000 1.775 9999.000 98651 9999.00 9999.000 2.212 9999.000 9999.000 1.327 9999.000 98831 9999.00 9999.000 2.079 9999.000 9999.000 1.288 9999.000 99010 9999.00 9999.000 2.145 9999.000 9999.000 1.290 9999.000 99371 9999.00 9999.000 1.924 9999.000 9999.000 1.247 9999.000 99551 9999.00 9999.000 1.787 9999.000 9999.000 9999.000 9999.000 99731 9999.00 9999.000 1.928 9999.000 9999.000 1.235 9999.000 100090 9999.00 9999.000 1.923 9999.000 9999.000 1.254 9999.000 100271 9999.00 9999.000 2.051 9999.000 9999.000 1.259 9999.000 100451 9999.00 9999.000 1.870 9999.000 9999.000 1.237 9999.000 100811 9999.00 9999.000 2.031 9999.000 9999.000 1.239 9999.000 100991 9999.00 9999.000 3.588 9999.000 9999.000 1.632 9999.000 101171 9999.00 9999.000 4.695 9999.000 9999.000 1.845 9999.000 101531 9999.00 9999.000 5.090 9999.000 9999.000 1.917 9999.000 101711 9999.00 9999.000 6.172 9999.000 9999.000 2.164 9999.000 101890 9999.00 9999.000 5.849 9999.000 9999.000 2.111 9999.000 102251 9999.00 9999.000 5.349 9999.000 9999.000 1.979 9999.000 102431 9999.00 9999.000 5.015 9999.000 9999.000 1.836 9999.000 102611 9999.00 9999.000 3.638 9999.000 9999.000 1.603 9999.000 102971 9999.00 9999.000 3.374 9999.000 9999.000 1.604 9999.000 103151 9999.00 9999.000 2.713 9999.000 9999.000 1.458 9999.000 103331 9999.00 9999.000 3.972 9999.000 9999.000 1.713 9999.000 103691 9999.00 9999.000 3.936 9999.000 9999.000 1.728 9999.000 103871 9999.00 9999.000 4.440 9999.000 9999.000 9999.000 9999.000 104051 9999.00 9999.000 4.503 9999.000 9999.000 1.854 9999.000 104410 9999.00 9999.000 5.039 9999.000 9999.000 1.832 9999.000 104591 9999.00 9999.000 14.360 9999.000 9999.000 3.073 9999.000 104771 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 105131 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000