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 11 02 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 64258 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64438 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64618 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 64798 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65158 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65338 0.25 18.158 19.479 -1.321 3.576 3.576 0.001 65518 0.51 18.078 17.703 0.375 3.574 3.446 0.128 65698 0.83 17.979 15.714 2.264 3.569 3.284 0.285 66058 1.57 17.738 12.061 5.677 3.551 2.879 0.672 66238 1.76 17.677 11.071 6.606 3.545 2.742 0.803 66418 1.94 17.616 10.330 7.286 3.538 2.676 0.862 66598 2.05 17.579 9.909 7.670 3.534 2.622 0.913 66958 2.03 17.587 10.056 7.531 3.535 2.634 0.901 67138 2.18 17.536 9.523 8.013 3.529 2.579 0.950 67318 2.04 17.583 10.034 7.550 3.535 2.649 0.886 67498 1.98 17.602 10.262 7.339 3.537 2.660 0.877 67858 1.78 17.668 10.958 6.711 3.544 2.770 0.774 68038 1.97 17.606 10.241 7.364 3.537 2.672 0.866 68218 1.32 17.821 13.079 4.742 3.558 3.017 0.542 68758 1.70 17.698 11.370 6.329 3.547 2.810 0.737 68938 1.54 17.749 12.031 5.718 3.552 2.893 0.659 69118 1.99 17.599 10.106 7.493 3.537 2.671 0.866 69298 2.56 17.404 8.039 9.365 3.512 2.342 1.170 69658 3.19 17.183 6.134 11.049 3.478 2.035 1.443 69838 3.30 17.144 5.778 11.366 3.472 1.953 1.519 70018 2.71 17.354 7.659 9.695 3.505 2.277 1.227 70558 2.96 17.263 6.744 10.518 3.491 2.131 1.360 70738 2.65 17.375 7.776 9.599 3.508 2.294 1.214 70918 2.43 17.449 8.539 8.910 3.518 2.425 1.093 71098 2.77 17.330 7.351 9.979 3.501 2.233 1.268 71458 2.52 17.420 8.301 9.119 3.514 2.381 1.133 71818 1.67 17.707 11.353 6.355 3.548 2.815 0.733 71998 1.69 17.701 11.338 6.363 3.547 2.814 0.733 72358 2.54 17.412 8.287 9.125 3.513 2.370 1.143 72538 2.70 17.355 7.614 9.740 3.505 2.269 1.236 72718 2.60 17.391 7.956 9.435 3.510 2.327 1.183 72898 2.10 17.564 9.655 7.909 3.532 2.588 0.944 73258 2.06 17.577 9.936 7.641 3.534 2.626 0.908 73438 2.05 17.581 9.878 7.703 3.534 2.629 0.906 73618 2.04 17.583 9.957 7.626 3.535 2.635 0.900 73798 2.14 17.548 9.570 7.978 3.531 2.578 0.952 74158 2.12 17.555 9.632 7.922 3.531 2.595 0.937 74338 2.16 17.544 9.532 8.012 3.530 2.575 0.955 74518 2.16 17.542 9.489 8.053 3.530 2.573 0.957 75058 2.10 17.562 9.706 7.856 3.532 2.601 0.931 75238 2.08 17.568 9.783 7.785 3.533 2.612 0.921 75418 2.19 17.533 9.369 8.165 3.529 2.531 0.998 75598 2.18 17.537 9.530 8.007 3.529 2.557 0.973 75958 1.14 17.880 13.891 3.989 3.563 3.091 0.472 76138 0.91 17.952 15.127 2.825 3.568 3.218 0.349 76318 0.86 17.969 15.480 2.489 3.569 3.242 0.326 76498 1.13 17.883 14.006 3.877 3.563 3.101 0.462 76858 2.13 17.553 9.700 7.854 3.531 2.581 0.950 77038 3.05 17.233 6.524 10.709 3.486 2.076 1.411 77218 3.34 17.129 5.659 11.470 3.469 1.914 1.555 77398 3.42 17.100 5.368 11.732 3.464 1.870 1.594 77758 3.81 16.955 4.181 12.774 3.438 1.650 1.788 77938 4.08 16.857 3.503 13.354 3.419 1.491 1.927 78118 4.05 16.868 3.436 13.432 3.421 1.512 1.909 78298 4.16 16.827 3.270 13.557 3.412 1.439 1.974 78658 4.20 16.809 3.107 13.702 3.409 1.416 1.992 78838 4.44 16.720 2.944 13.776 3.390 1.362 2.028 79018 4.27 16.783 2.944 13.839 3.403 1.365 2.038 79198 4.32 16.767 3.027 13.740 3.400 1.377 2.024 79558 4.08 16.858 2.920 13.938 3.419 1.361 2.057 79738 4.29 16.778 2.883 13.895 3.402 1.366 2.037 79918 4.44 16.720 2.953 13.768 3.390 1.353 2.037 80458 4.39 16.741 2.665 14.076 3.395 1.310 2.084 80638 4.75 16.601 2.577 14.024 3.364 1.279 2.085 80818 4.39 16.739 2.654 14.085 3.394 1.306 2.088 80998 4.14 16.835 2.778 14.057 3.414 1.313 2.101 81358 4.38 16.743 2.637 14.107 3.395 1.299 2.096 81538 4.39 16.739 2.634 14.105 3.394 1.303 2.091 81718 4.44 16.720 2.368 14.352 3.390 1.221 2.169 81898 4.43 16.726 2.521 14.205 3.391 1.282 2.110 82258 4.61 16.656 2.165 14.491 3.376 1.172 2.204 82438 4.38 16.743 2.201 14.542 3.395 1.171 2.224 82618 4.45 16.718 2.509 14.209 3.390 1.269 2.121 82798 4.63 16.649 2.666 13.983 3.375 1.283 2.092 83158 4.08 16.858 3.058 13.800 3.419 1.380 2.039 83338 4.25 16.793 3.060 13.732 3.405 1.389 2.016 83518 3.90 16.925 3.637 13.288 3.432 1.503 1.929 83698 3.93 16.911 3.833 13.078 3.429 1.561 1.868 84058 2.03 17.586 10.149 7.437 3.535 9999.000 9999.000 84238 1.35 17.813 13.047 4.765 3.558 9999.000 9999.000 84418 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 84598 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000