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 ASHOE/MAESA 1 1 1994 10 29 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) 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 69844 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70024 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70204 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70384 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70744 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70924 9999.00 9999.000 18.918 9999.000 9999.000 3.547 9999.000 71104 0.44 18.097 16.563 1.534 3.575 3.348 0.226 71284 0.26 18.151 17.120 1.031 3.576 3.425 0.151 71644 0.97 17.929 14.102 3.827 3.566 3.144 0.422 71825 1.10 17.888 13.654 4.234 3.563 3.087 0.477 72004 1.10 17.889 13.623 4.266 3.563 3.095 0.469 72184 0.96 17.934 14.066 3.868 3.566 3.159 0.408 72544 0.88 17.959 14.436 3.524 3.568 3.191 0.377 72725 1.12 17.882 13.514 4.368 3.563 3.084 0.479 72904 1.07 17.899 13.758 4.140 3.564 9999.000 9999.000 73084 1.01 17.919 13.893 4.026 3.565 3.123 0.442 73444 1.08 17.895 13.574 4.322 3.564 3.100 0.464 73624 1.33 17.813 14.257 3.556 3.558 3.196 0.362 73805 0.83 17.974 14.537 3.437 3.569 3.204 0.365 74345 0.87 17.961 15.197 2.764 3.568 3.275 0.293 74525 0.79 17.988 14.781 3.207 3.570 3.219 0.350 74704 0.92 17.945 15.046 2.899 3.567 3.257 0.310 74885 0.73 18.005 14.917 3.089 3.571 3.240 0.330 75244 0.63 18.037 15.409 2.628 3.572 3.275 0.297 75424 0.82 17.977 15.413 2.564 3.569 3.310 0.259 75604 0.61 18.043 15.401 2.641 3.572 3.284 0.288 76145 0.47 18.087 15.177 2.909 3.574 3.297 0.277 76324 0.66 18.028 15.227 2.801 3.572 3.269 0.303 76504 1.03 17.912 15.410 2.502 3.565 3.299 0.266 76684 0.62 18.041 15.431 2.610 3.572 3.282 0.290 77045 0.59 18.049 15.444 2.605 3.573 3.295 0.278 77404 0.59 18.051 15.535 2.516 3.573 3.290 0.282 77585 1.03 17.912 15.444 2.468 3.565 3.310 0.255 77944 0.87 17.961 15.261 2.700 3.568 3.301 0.267 78125 0.63 18.037 15.319 2.718 3.572 3.276 0.296 78304 0.72 18.009 15.178 2.831 3.571 3.286 0.285 78484 0.63 18.038 15.190 2.848 3.572 3.274 0.298 78844 0.60 18.047 15.503 2.544 3.573 3.286 0.287 79024 1.13 17.880 15.148 2.731 3.563 3.297 0.265 79205 0.63 18.037 15.329 2.708 3.572 3.273 0.299 79385 0.87 17.961 15.178 2.783 3.568 3.295 0.273 79744 0.57 18.056 15.127 2.929 3.573 3.300 0.273 79924 0.72 18.010 14.806 3.204 3.571 3.249 0.321 80105 0.62 18.040 14.936 3.104 3.572 3.280 0.292 80644 0.72 18.010 14.886 3.124 3.571 3.250 0.321 80824 1.03 17.912 14.896 3.016 3.565 3.277 0.288 81005 0.70 18.017 14.966 3.051 3.571 3.251 0.320 81184 0.67 18.025 14.946 3.078 3.571 3.273 0.299 81545 0.42 18.102 15.108 2.994 3.575 3.293 0.281 81724 0.66 18.029 15.087 2.941 3.572 3.261 0.311 81904 0.82 17.977 15.107 2.870 3.569 3.282 0.287 82085 0.72 18.008 14.866 3.142 3.571 3.239 0.332 82445 0.79 17.986 14.621 3.365 3.569 3.216 0.354 82625 0.57 18.056 14.637 3.419 3.573 3.248 0.325 82804 0.76 17.996 14.768 3.228 3.570 3.224 0.347 82984 0.67 18.025 14.707 3.317 3.571 3.256 0.315 83344 0.08 18.207 16.566 1.641 3.577 3.393 0.185 83525 -0.06 18.249 18.609 -0.360 3.578 3.514 0.064 83705 9999.00 9999.000 19.061 9999.000 9999.000 3.534 9999.000 83884 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84244 -0.13 18.270 18.962 -0.693 3.578 3.543 0.035 84424 -0.31 18.323 18.571 -0.249 3.578 3.513 0.065 84605 0.30 18.141 16.940 1.201 3.576 3.384 0.192 84785 0.18 18.178 16.786 1.391 3.577 3.402 0.175 85144 0.13 18.192 15.249 2.943 3.577 3.288 0.289 85325 0.67 18.026 15.107 2.919 3.572 3.255 0.316 85505 0.67 18.025 14.956 3.068 3.571 3.277 0.295 86044 0.77 17.994 14.719 3.276 3.570 3.226 0.344 86225 0.72 18.009 15.168 2.841 3.571 3.274 0.297 86404 0.67 18.026 15.127 2.899 3.572 3.257 0.314 86584 0.72 18.009 15.157 2.851 3.571 3.273 0.298 86945 0.57 18.056 15.046 3.010 3.573 3.260 0.313 87124 0.72 18.008 14.906 3.102 3.571 3.240 0.331 87304 0.37 18.117 14.916 3.201 3.575 3.251 0.325 87484 0.74 18.003 14.877 3.126 3.570 3.226 0.344 87845 0.73 18.005 14.827 3.179 3.571 3.230 0.341 88025 0.62 18.040 14.648 3.392 3.572 3.237 0.335 88204 0.78 17.991 14.590 3.401 3.570 3.217 0.353 88384 0.82 17.977 14.522 3.455 3.569 3.224 0.345 88744 0.77 17.993 14.051 3.942 3.570 3.186 0.384 88924 0.94 17.941 13.980 3.960 3.567 3.162 0.405 89105 1.44 17.779 13.616 4.163 3.555 3.144 0.411 89284 0.97 17.930 13.831 4.099 3.566 3.142 0.424 89645 0.96 17.933 13.868 4.064 3.566 3.142 0.424 89824 0.57 18.056 13.589 4.467 3.573 3.147 0.426 90005 0.94 17.940 13.991 3.949 3.567 3.150 0.417 90185 1.08 17.896 13.325 4.571 3.564 3.115 0.449 90544 0.67 18.025 13.993 4.032 3.571 3.189 0.382 90724 0.96 17.934 13.886 4.048 3.566 3.148 0.419 90904 0.52 18.071 14.323 3.749 3.574 3.213 0.360 91444 0.97 17.929 13.712 4.217 3.566 3.145 0.421 91624 0.92 17.945 13.635 4.310 3.567 3.155 0.412 91805 0.96 17.934 13.837 4.096 3.566 3.145 0.421 91984 1.13 17.880 13.852 4.028 3.563 3.168 0.395 92345 0.92 17.945 13.675 4.270 3.567 3.156 0.411 92524 0.96 17.933 13.958 3.974 3.566 3.146 0.421 92704 0.87 17.961 13.678 4.283 3.568 3.143 0.425 92884 1.01 17.917 13.785 4.132 3.565 3.122 0.444 93245 1.19 17.858 13.143 4.715 3.561 3.042 0.519 93425 0.98 17.929 12.956 4.972 3.566 3.052 0.514 93604 1.38 17.797 12.502 5.295 3.556 2.969 0.587 93784 1.13 17.880 12.406 5.474 3.563 2.981 0.582 94145 2.29 17.494 11.100 6.393 3.524 2.823 0.701 94325 1.99 17.595 10.435 7.159 3.536 2.697 0.839 94505 2.07 17.567 10.122 7.445 3.533 2.661 0.872 94684 2.16 17.537 9.896 7.642 3.529 2.616 0.913 95044 1.96 17.607 10.646 6.961 3.537 2.711 0.826 95224 1.49 17.762 12.405 5.357 3.553 2.918 0.635 95405 1.43 17.780 12.453 5.327 3.555 2.924 0.631 95585 0.37 18.117 17.819 0.299 3.575 3.430 0.146 95944 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 96124 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 96304 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000