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 24 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 66238 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66418 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66598 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66778 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67138 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67318 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67498 0.33 18.126 17.552 0.574 3.575 3.440 0.135 67678 0.49 18.078 16.637 1.441 3.574 3.366 0.208 68038 1.10 17.886 12.928 4.957 3.563 3.001 0.563 68218 1.16 17.866 12.259 5.606 3.562 2.916 0.646 68398 1.01 17.912 13.349 4.563 3.565 9999.000 9999.000 68578 0.84 17.967 14.554 3.413 3.568 3.187 0.381 68938 0.82 17.973 14.660 3.313 3.569 3.207 0.362 69118 0.90 17.949 14.252 3.697 3.567 3.163 0.404 69298 0.89 17.952 14.177 3.775 3.568 3.168 0.400 69478 0.89 17.950 14.260 3.690 3.567 3.163 0.404 69838 0.88 17.954 14.306 3.648 3.568 3.173 0.394 70018 1.22 17.847 14.439 3.408 3.560 3.184 0.376 70198 0.85 17.966 14.555 3.411 3.568 3.197 0.371 70738 1.06 17.896 14.639 3.257 3.564 3.221 0.343 70918 0.79 17.983 14.846 3.137 3.569 3.227 0.342 71098 1.48 17.762 14.815 2.947 3.553 3.228 0.325 71278 0.82 17.974 14.539 3.435 3.569 3.207 0.362 71638 0.56 18.055 15.934 2.121 3.573 3.335 0.238 71818 1.32 17.813 15.135 2.678 3.558 3.258 0.299 71998 0.73 18.001 15.085 2.916 3.570 3.263 0.307 72538 0.86 17.961 15.525 2.437 3.568 3.313 0.255 72718 0.64 18.031 15.649 2.382 3.572 3.312 0.260 72898 0.86 17.961 15.660 2.301 3.568 3.321 0.247 73078 0.67 18.022 15.493 2.529 3.571 3.294 0.278 73438 0.68 18.019 15.342 2.678 3.571 3.291 0.280 73798 0.68 18.016 15.400 2.616 3.571 3.279 0.292 73978 0.71 18.009 15.045 2.964 3.571 3.267 0.304 74338 0.81 17.977 14.845 3.132 3.569 3.255 0.314 74518 0.77 17.989 14.865 3.125 3.570 3.238 0.331 74698 0.71 18.009 14.737 3.272 3.571 3.236 0.335 74878 0.70 18.012 15.348 2.664 3.571 3.269 0.302 75238 0.07 18.206 18.548 -0.343 3.577 3.516 0.061 75418 -0.03 18.237 18.987 -0.751 3.578 3.533 0.045 75598 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75778 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76138 -0.08 18.251 19.105 -0.853 3.578 9999.000 9999.000 76318 0.26 18.147 17.577 0.570 3.576 3.450 0.126 76498 0.11 18.193 17.143 1.050 3.577 9999.000 9999.000 77038 0.66 18.025 15.525 2.500 3.571 3.293 0.279 77218 0.71 18.009 15.124 2.885 3.571 3.257 0.314 77398 0.68 18.019 15.481 2.537 3.571 3.282 0.289 77578 0.66 18.025 15.671 2.354 3.572 3.305 0.267 77938 0.66 18.025 14.583 3.442 3.572 3.215 0.357 78118 0.85 17.966 14.555 3.411 3.568 3.198 0.370 78298 0.51 18.072 14.749 3.323 3.574 3.222 0.352 78478 0.76 17.993 14.894 3.098 3.570 3.240 0.330 78838 0.86 17.962 14.398 3.564 3.568 3.191 0.377 79018 0.81 17.977 14.368 3.610 3.569 3.203 0.366 79198 0.86 17.962 14.388 3.574 3.568 3.184 0.384 79378 0.56 18.056 14.355 3.701 3.573 3.214 0.359 79738 1.01 17.913 14.387 3.526 3.565 3.195 0.370 79918 0.86 17.961 14.299 3.662 3.568 3.192 0.376 80098 0.61 18.040 14.329 3.711 3.572 3.216 0.356 80278 0.86 17.962 14.358 3.604 3.568 3.192 0.376 80638 0.87 17.958 14.291 3.667 3.568 3.189 0.379 80818 1.01 17.913 14.320 3.592 3.565 3.212 0.353 80998 0.87 17.959 14.310 3.649 3.568 3.197 0.371 81178 0.66 18.025 14.320 3.705 3.572 3.217 0.354 81538 0.81 17.977 14.227 3.751 3.569 3.207 0.362 81718 0.94 17.936 13.831 4.105 3.567 3.157 0.410 81898 0.76 17.993 14.019 3.974 3.570 3.203 0.367 82438 0.96 17.928 13.657 4.271 3.566 3.143 0.424 82618 0.61 18.040 13.561 4.479 3.572 3.165 0.407 82798 0.95 17.934 13.765 4.169 3.566 3.151 0.416 82978 1.01 17.913 13.612 4.300 3.565 3.170 0.395 83338 0.96 17.929 13.590 4.339 3.566 3.173 0.393 83518 0.98 17.924 13.516 4.408 3.566 3.129 0.437 83698 0.86 17.961 13.454 4.507 3.568 3.143 0.425 83878 0.97 17.925 13.505 4.420 3.566 3.127 0.439 84238 0.99 17.918 13.351 4.568 3.565 3.123 0.442 84418 0.86 17.961 13.181 4.781 3.568 3.135 0.433 84598 1.03 17.906 13.038 4.868 3.565 3.090 0.475 84778 0.91 17.945 13.189 4.756 3.567 3.125 0.442 85138 1.22 17.847 13.135 4.712 3.560 3.134 0.426 85318 1.02 17.909 13.209 4.699 3.565 3.103 0.462 85498 0.76 17.993 13.087 4.906 3.570 3.126 0.444 85678 1.05 17.902 13.004 4.898 3.564 3.087 0.478 86038 1.06 17.899 12.886 5.012 3.564 3.077 0.487 86218 1.11 17.880 13.298 4.582 3.563 3.137 0.426 86398 1.10 17.884 12.510 5.374 3.563 3.031 0.532 86578 1.17 17.863 12.765 5.098 3.562 3.097 0.465 86938 0.96 17.929 12.380 5.549 3.566 3.052 0.514 87118 1.09 17.887 12.613 5.274 3.563 3.051 0.512 87298 1.17 17.863 12.408 5.456 3.562 3.059 0.502 87838 1.17 17.861 11.551 6.310 3.561 2.940 0.622 88018 0.96 17.929 11.412 6.517 3.566 2.955 0.611 88198 1.17 17.861 11.534 6.328 3.561 2.931 0.630 88378 1.22 17.847 11.895 5.951 3.560 2.993 0.568 88738 1.01 17.913 11.872 6.040 3.565 3.000 0.565 88918 1.17 17.863 11.646 6.217 3.561 2.938 0.623 89098 0.96 17.929 11.761 6.168 3.566 2.987 0.579 89278 1.17 17.861 11.708 6.153 3.561 2.930 0.631 89638 1.15 17.868 11.821 6.047 3.562 2.968 0.594 89818 1.01 17.913 11.932 5.980 3.565 2.993 0.572 89998 1.17 17.862 11.773 6.089 3.561 2.925 0.636 90178 1.37 17.796 11.811 5.985 3.556 2.973 0.583 90538 1.27 17.830 11.905 5.925 3.559 2.982 0.577 90718 1.16 17.865 11.837 6.028 3.562 2.943 0.619 90898 1.06 17.896 11.836 6.060 3.564 2.973 0.591 91078 1.17 17.861 11.521 6.339 3.561 2.916 0.645 91438 1.18 17.858 11.478 6.380 3.561 2.896 0.666 91618 1.22 17.847 11.398 6.448 3.560 2.925 0.636 91798 1.13 17.873 12.174 5.699 3.562 2.963 0.599 91978 1.53 17.745 11.737 6.008 3.552 2.835 0.716 92338 0.11 18.193 17.798 0.395 3.577 9999.000 9999.000 92518 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92698 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92878 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000