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 07 22 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 54445 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54625 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54805 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54985 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55345 0.31 18.880 17.149 1.731 3.538 3.227 0.311 55525 0.54 18.819 16.231 2.588 3.546 3.188 0.358 55705 0.84 18.739 15.744 2.995 3.556 3.152 0.403 55885 0.87 18.732 15.126 3.606 3.556 3.092 0.465 56245 1.12 18.662 14.173 4.490 3.563 2.991 0.572 56425 1.57 18.539 12.501 6.037 3.571 2.832 0.739 56605 1.92 18.437 11.649 6.788 3.576 2.722 0.854 56785 1.75 18.486 11.638 6.848 3.574 2.724 0.850 57145 1.61 18.525 11.697 6.829 3.572 2.732 0.840 57325 2.09 18.388 11.168 7.220 3.577 2.664 0.913 57505 2.08 18.391 10.989 7.402 3.577 2.643 0.934 57685 2.07 18.395 11.200 7.195 3.577 2.677 0.900 58045 2.32 18.322 10.370 7.952 3.578 2.574 1.003 58225 2.41 18.293 10.304 7.989 3.578 2.578 1.000 58405 2.40 18.298 10.204 8.094 3.578 2.540 1.038 58945 2.37 18.307 9.729 8.578 3.578 2.490 1.088 59125 2.64 18.225 9.419 8.806 3.578 2.446 1.131 59305 2.32 18.321 9.472 8.849 3.578 2.450 1.128 59485 2.59 18.239 9.566 8.673 3.578 2.467 1.110 59845 2.84 18.164 8.889 9.276 3.577 2.372 1.205 60025 2.61 18.235 9.515 8.719 3.578 9999.000 9999.000 60205 2.61 18.235 9.545 8.690 3.578 2.469 1.109 60745 2.61 18.235 9.390 8.845 3.578 2.429 1.149 60925 3.08 18.092 8.055 10.037 3.574 2.275 1.299 61105 3.20 18.054 8.328 9.725 3.573 2.291 1.282 61285 2.91 18.144 8.623 9.521 3.576 9999.000 9999.000 61645 2.69 18.209 9.210 8.999 3.577 9999.000 9999.000 62005 2.76 18.190 9.038 9.152 3.577 9999.000 9999.000 62185 2.75 18.191 8.868 9.323 3.577 9999.000 9999.000 62545 2.75 18.191 9.082 9.108 3.577 9999.000 9999.000 62725 2.77 18.187 9.054 9.133 3.577 9999.000 9999.000 62905 2.51 18.264 9.189 9.074 3.578 9999.000 9999.000 63085 2.68 18.213 9.187 9.027 3.577 9999.000 9999.000 63445 2.74 18.196 9.147 9.050 3.577 9999.000 9999.000 63625 3.40 17.991 7.562 10.429 3.570 9999.000 9999.000 63805 3.29 18.026 7.262 10.764 3.572 9999.000 9999.000 63985 3.25 18.038 7.602 10.436 3.572 9999.000 9999.000 64345 3.35 18.007 8.257 9.750 3.571 9999.000 9999.000 64525 2.95 18.132 8.464 9.668 3.576 9999.000 9999.000 64705 3.30 18.023 8.176 9.846 3.571 9999.000 9999.000 65245 2.87 18.156 8.663 9.493 3.576 9999.000 9999.000 65425 3.40 17.991 8.636 9.355 3.570 9999.000 9999.000 65605 2.78 18.181 8.916 9.265 3.577 9999.000 9999.000 65785 2.32 18.321 10.929 7.392 3.578 9999.000 9999.000 66145 1.29 18.616 14.943 3.673 3.567 9999.000 9999.000 66325 1.50 18.558 13.014 5.543 3.570 9999.000 9999.000 66505 2.41 18.293 10.519 7.774 3.578 9999.000 9999.000 66685 2.73 18.198 9.165 9.034 3.577 9999.000 9999.000 67045 3.10 18.083 7.927 10.157 3.574 9999.000 9999.000 67225 3.45 17.975 7.179 10.796 3.569 9999.000 9999.000 67405 3.44 17.978 6.810 11.168 3.569 9999.000 9999.000 67585 3.45 17.975 6.885 11.090 3.569 9999.000 9999.000 67945 3.40 17.991 6.456 11.535 3.570 9999.000 9999.000 68125 3.59 17.931 6.274 11.657 3.566 9999.000 9999.000 68305 3.60 17.927 6.180 11.747 3.566 9999.000 9999.000 68485 3.62 17.921 6.216 11.705 3.566 9999.000 9999.000 68845 3.83 17.853 5.413 12.440 3.561 9999.000 9999.000 69025 3.70 17.894 5.116 12.779 3.564 9999.000 9999.000 69205 3.88 17.837 5.205 12.632 3.560 9999.000 9999.000 69385 4.06 17.777 5.170 12.607 3.555 9999.000 9999.000 69745 4.06 17.777 4.585 13.192 3.555 9999.000 9999.000 69925 3.93 17.821 4.984 12.837 3.558 9999.000 9999.000 70105 3.91 17.828 4.695 13.133 3.559 9999.000 9999.000 70645 3.99 17.802 4.817 12.985 3.557 9999.000 9999.000 70825 3.75 17.878 5.006 12.871 3.563 9999.000 9999.000 71005 3.78 17.870 5.633 12.237 3.562 9999.000 9999.000 71185 3.70 17.894 5.593 12.302 3.564 9999.000 9999.000 71545 3.70 17.894 5.433 12.461 3.564 9999.000 9999.000 71725 3.77 17.871 5.598 12.274 3.562 9999.000 9999.000 71905 3.91 17.828 5.388 12.439 3.559 9999.000 9999.000 72085 3.95 17.815 4.956 12.859 3.558 9999.000 9999.000 72445 3.80 17.864 5.532 12.332 3.562 9999.000 9999.000 72625 3.96 17.811 5.528 12.283 3.557 9999.000 9999.000 72805 3.75 17.881 5.763 12.118 3.563 9999.000 9999.000 72985 3.65 17.911 5.648 12.263 3.565 9999.000 9999.000 73345 3.81 17.861 5.764 12.098 3.561 9999.000 9999.000 73525 3.76 17.876 5.688 12.188 3.562 9999.000 9999.000 73706 3.40 17.991 5.794 12.197 3.570 9999.000 9999.000 73885 3.76 17.875 5.673 12.202 3.562 9999.000 9999.000 74245 3.61 17.925 6.207 11.718 3.566 9999.000 9999.000 74425 3.75 17.878 5.966 11.912 3.563 9999.000 9999.000 74605 3.84 17.851 5.403 12.448 3.561 9999.000 9999.000 74785 4.22 17.725 5.398 12.327 3.550 9999.000 9999.000 75145 3.96 17.811 5.245 12.566 3.557 9999.000 9999.000 75325 3.92 17.823 4.993 12.830 3.558 9999.000 9999.000 75505 3.75 17.878 5.522 12.355 3.563 9999.000 9999.000 76045 3.84 17.850 5.403 12.447 3.561 9999.000 9999.000 76225 3.45 17.975 5.708 12.267 3.569 9999.000 9999.000 76405 3.77 17.873 5.653 12.220 3.562 9999.000 9999.000 76585 3.55 17.943 5.628 12.315 3.567 9999.000 9999.000 76945 3.50 17.959 5.895 12.064 3.568 9999.000 9999.000 77125 3.75 17.880 5.738 12.142 3.563 9999.000 9999.000 77305 4.06 17.777 5.318 12.459 3.555 9999.000 9999.000 77485 3.77 17.872 5.648 12.225 3.562 9999.000 9999.000 77845 3.68 17.901 5.966 11.935 3.564 9999.000 9999.000 78025 3.91 17.828 5.433 12.395 3.559 9999.000 9999.000 78205 3.62 17.922 6.231 11.691 3.566 9999.000 9999.000 78385 4.01 17.794 5.458 12.336 3.556 9999.000 9999.000 78745 3.35 18.007 6.279 11.728 3.571 9999.000 9999.000 78925 3.68 17.902 5.991 11.911 3.564 9999.000 9999.000 79106 3.60 17.927 5.840 12.087 3.566 9999.000 9999.000 79285 3.72 17.890 5.864 12.026 3.563 9999.000 9999.000 79645 3.64 17.915 6.084 11.831 3.565 9999.000 9999.000 79825 3.25 18.038 6.227 11.811 3.572 9999.000 9999.000 80005 3.64 17.915 6.074 11.841 3.565 9999.000 9999.000 80185 3.86 17.844 6.226 11.619 3.560 9999.000 9999.000 80545 2.32 18.321 9.522 8.800 3.578 9999.000 9999.000 80725 0.47 18.838 16.612 2.226 3.544 9999.000 9999.000 80905 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81085 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81445 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000