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 11 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 71196 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71376 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71556 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71736 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72096 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72276 0.14 19.022 17.734 1.289 3.515 3.337 0.178 72456 0.80 18.851 14.758 4.093 3.542 3.077 0.465 72636 2.86 18.275 8.299 9.975 3.578 2.273 1.305 72996 2.66 18.336 9.007 9.329 3.578 2.381 1.197 73176 2.92 18.257 8.271 9.986 3.578 2.265 1.313 73356 2.20 18.467 10.520 7.948 3.575 2.585 0.990 73536 1.93 18.545 11.376 7.170 3.571 2.692 0.879 73896 1.52 18.660 12.175 6.485 3.563 2.791 0.773 74076 1.05 18.785 14.289 4.496 3.551 3.034 0.517 74256 1.25 18.733 14.430 4.304 3.556 3.069 0.487 74436 1.01 18.796 14.396 4.400 3.549 3.053 0.496 74796 0.85 18.839 15.020 3.819 3.544 3.108 0.436 74976 1.52 18.660 13.823 4.837 3.563 3.002 0.561 75156 0.90 18.826 14.809 4.017 3.546 3.088 0.458 75696 1.25 18.733 13.716 5.018 3.556 2.989 0.568 75876 1.22 18.742 13.716 5.026 3.555 2.974 0.581 76056 1.43 18.685 13.597 5.088 3.561 2.964 0.597 76236 0.84 18.842 14.999 3.844 3.543 3.108 0.435 76596 1.05 18.786 14.358 4.428 3.551 3.031 0.519 76776 0.85 18.840 15.274 3.566 3.544 3.148 0.396 76956 0.63 18.897 15.854 3.043 3.536 3.181 0.354 77496 0.37 18.963 16.040 2.924 3.525 3.210 0.315 77676 0.55 18.916 16.104 2.812 3.533 3.206 0.327 77856 0.28 18.985 16.115 2.870 3.521 3.222 0.299 78036 0.49 18.932 16.307 2.626 3.530 3.224 0.306 78396 0.46 18.940 16.424 2.516 3.529 3.236 0.293 78756 0.53 18.923 16.169 2.754 3.532 3.209 0.323 78936 0.94 18.817 15.876 2.941 3.547 3.192 0.355 79296 1.07 18.781 15.421 3.360 3.551 3.145 0.406 79476 0.51 18.927 16.272 2.655 3.531 3.219 0.312 79656 1.11 18.769 16.155 2.615 3.552 3.212 0.340 79836 0.47 18.938 16.402 2.536 3.529 3.230 0.299 80196 0.49 18.932 16.277 2.656 3.530 3.227 0.303 80376 0.98 18.805 16.028 2.777 3.548 3.193 0.355 80556 0.84 18.841 15.070 3.771 3.544 3.103 0.441 80736 1.07 18.781 14.936 3.845 3.551 3.098 0.453 81096 0.80 18.851 16.731 2.120 3.542 3.270 0.272 81276 0.33 18.973 16.959 2.014 3.524 3.279 0.244 81456 0.46 18.941 16.990 1.952 3.529 3.287 0.241 81996 1.00 18.799 14.563 4.237 3.549 3.048 0.501 82176 1.38 18.697 13.829 4.868 3.560 2.978 0.582 82356 0.92 18.821 14.902 3.919 3.546 3.078 0.468 82536 0.72 18.874 14.543 4.332 3.539 3.067 0.472 82896 0.41 18.952 16.124 2.828 3.527 3.216 0.311 83076 0.66 18.888 15.802 3.086 3.537 3.177 0.361 83256 0.07 19.039 16.968 2.071 3.511 3.302 0.209 83436 0.25 18.992 17.254 1.738 3.520 3.308 0.212 83796 0.29 18.983 17.136 1.847 3.522 3.310 0.212 83976 -0.23 19.112 17.141 1.971 3.496 3.332 0.164 84156 0.31 18.979 17.120 1.860 3.522 3.305 0.217 84336 0.03 19.049 16.768 2.282 3.509 3.275 0.234 84696 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84876 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85056 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85236 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 85596 0.55 18.918 16.175 2.743 3.533 3.190 0.343 85776 0.28 18.985 17.240 1.745 3.521 3.304 0.218 85956 0.38 18.960 16.649 2.311 3.526 3.255 0.271 86136 0.11 19.028 16.357 2.671 3.514 3.249 0.265 86496 0.67 18.885 14.857 4.028 3.537 3.154 0.384 86676 0.82 18.848 14.776 4.072 3.543 3.124 0.418 86856 0.59 18.908 15.151 3.757 3.534 3.165 0.369 87396 0.75 18.866 15.161 3.705 3.540 3.147 0.393 87576 0.59 18.908 15.063 3.845 3.534 3.169 0.365 87756 0.78 18.857 15.053 3.804 3.542 3.133 0.409 87936 0.59 18.908 15.014 3.894 3.534 3.161 0.373 88296 0.76 18.863 15.112 3.751 3.541 3.171 0.370 88476 0.78 18.858 15.043 3.815 3.541 3.136 0.405 88656 1.29 18.721 13.021 5.701 3.558 2.946 0.612 88836 1.40 18.693 13.008 5.685 3.560 2.914 0.646 89196 1.63 18.628 12.235 6.393 3.566 2.826 0.740 89376 2.07 18.506 11.810 6.696 3.573 2.798 0.775 89556 1.70 18.610 12.032 6.578 3.567 2.803 0.764 89736 1.43 18.685 12.242 6.442 3.561 2.847 0.714 90096 1.75 18.597 11.863 6.734 3.568 2.812 0.756 90276 1.89 18.557 11.378 7.179 3.570 2.738 0.833 90456 1.52 18.660 12.285 6.375 3.563 2.875 0.688 90636 1.85 18.567 11.481 7.087 3.570 2.742 0.828 90996 2.17 18.477 10.443 8.035 3.574 2.611 0.963 91176 2.26 18.453 10.523 7.930 3.575 2.640 0.935 91356 1.86 18.565 11.419 7.146 3.570 2.742 0.828 91536 1.84 18.571 10.931 7.640 3.570 2.709 0.861 91896 2.12 18.493 9.976 8.517 3.574 2.567 1.006 92076 2.82 18.287 8.225 10.062 3.578 2.311 1.267 92256 2.73 18.314 7.738 10.576 3.578 2.225 1.353 92796 3.06 18.215 7.366 10.849 3.578 2.184 1.394 92976 2.78 18.300 7.331 10.969 3.578 2.178 1.400 93156 3.07 18.213 7.364 10.849 3.577 2.178 1.399 93336 2.63 18.343 7.448 10.895 3.578 2.186 1.392 93696 2.83 18.286 7.434 10.852 3.578 2.190 1.388 93876 3.02 18.227 7.553 10.674 3.578 2.206 1.372 94056 2.54 18.371 7.407 10.964 3.577 2.185 1.392 94236 3.12 18.198 7.175 11.023 3.577 2.155 1.423 94596 2.94 18.253 7.837 10.416 3.578 2.252 1.326 94776 3.26 18.154 7.197 10.957 3.576 2.156 1.420 94956 3.16 18.186 7.054 11.132 3.577 2.134 1.443 95136 2.68 18.329 8.640 9.689 3.578 2.366 1.211 95496 2.63 18.343 9.202 9.141 3.578 2.441 1.136 95676 2.88 18.269 8.067 10.202 3.578 2.285 1.293 95856 3.21 18.169 7.851 10.317 3.577 2.254 1.322 96036 3.14 18.191 7.113 11.078 3.577 2.141 1.436 96396 1.46 18.677 12.598 6.079 3.562 2.909 0.653 96576 2.21 18.466 10.529 7.937 3.575 2.612 0.963 96756 3.65 18.035 4.878 13.156 3.572 1.752 1.820 96936 0.28 18.985 17.078 1.907 3.521 3.276 0.245 97296 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 97476 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 97656 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000