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 13 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 65199 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65379 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65559 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 65739 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66099 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 66279 0.18 19.013 17.623 1.390 3.516 3.323 0.193 66459 0.55 18.919 16.426 2.493 3.532 3.212 0.321 66639 0.99 18.803 14.684 4.120 3.548 3.059 0.489 66999 3.79 17.992 5.627 12.366 3.570 1.853 1.717 67179 3.22 18.169 7.217 10.952 3.577 2.100 1.477 67359 3.81 17.986 5.557 12.429 3.569 1.842 1.727 67539 3.52 18.077 5.239 12.838 3.574 1.777 1.797 67899 4.43 17.786 4.215 13.571 3.555 1.584 1.972 68079 4.12 17.888 4.207 13.681 3.563 1.602 1.962 68259 4.33 17.820 4.110 13.710 3.558 1.562 1.997 68439 4.07 17.903 4.399 13.505 3.564 1.642 1.923 68799 3.92 17.952 5.148 12.804 3.568 1.774 1.794 68979 4.17 17.870 5.157 12.713 3.562 1.759 1.803 69159 3.91 17.955 5.167 12.788 3.568 1.784 1.784 69699 4.33 17.820 5.328 12.491 3.558 1.803 1.756 69879 3.87 17.967 5.349 12.618 3.568 1.811 1.758 70059 3.62 18.046 5.979 12.067 3.573 1.896 1.677 70239 3.72 18.015 5.889 12.126 3.571 1.915 1.656 70599 3.53 18.074 6.599 11.475 3.574 2.025 1.548 70779 3.32 18.139 6.896 11.243 3.576 2.055 1.521 70959 2.97 18.244 8.408 9.836 3.578 2.309 1.269 71499 3.07 18.213 8.840 9.374 3.577 2.370 1.208 71679 2.41 18.409 10.078 8.331 3.577 2.555 1.022 71859 2.40 18.412 10.357 8.055 3.576 2.612 0.964 72039 2.34 18.431 10.231 8.200 3.576 2.589 0.987 72399 1.92 18.550 11.460 7.090 3.571 2.752 0.818 72759 1.20 18.748 14.042 4.706 3.555 2.992 0.562 72939 0.42 18.952 17.862 1.091 3.527 3.342 0.185 73299 0.90 18.828 17.515 1.313 3.545 3.318 0.227 73479 0.13 19.026 17.864 1.162 3.514 3.334 0.180 73659 1.43 18.685 14.673 4.012 3.561 3.066 0.495 73839 1.39 18.697 13.443 5.254 3.560 2.921 0.639 74199 2.65 18.340 9.462 8.877 3.578 2.451 1.127 74379 2.21 18.466 11.384 7.083 3.575 2.722 0.853 74559 2.37 18.420 10.199 8.221 3.576 2.569 1.007 74739 2.36 18.425 10.743 7.683 3.576 2.675 0.901 75099 1.39 18.697 12.440 6.257 3.560 2.911 0.649 75279 1.57 18.646 12.501 6.145 3.564 2.886 0.678 75459 1.48 18.672 11.690 6.982 3.562 2.815 0.747 75999 2.82 18.289 8.851 9.437 3.578 2.389 1.189 76179 3.27 18.154 5.722 12.431 3.576 1.893 1.683 76359 4.04 17.911 4.496 13.415 3.565 1.689 1.876 76539 3.77 17.999 4.379 13.620 3.570 1.671 1.900 76899 3.72 18.015 3.885 14.130 3.571 1.575 1.996 77079 4.10 17.894 4.194 13.699 3.564 1.649 1.915 77259 3.87 17.967 3.927 14.041 3.568 1.592 1.976 77439 4.16 17.873 3.823 14.050 3.562 1.587 1.975 77799 4.25 17.846 3.348 14.498 3.560 1.475 2.085 77979 4.02 17.919 3.254 14.665 3.565 1.448 2.117 78159 4.23 17.850 3.436 14.414 3.561 1.488 2.073 78339 4.02 17.919 3.324 14.595 3.565 1.452 2.113 78699 3.97 17.935 3.365 14.570 3.566 1.484 2.082 78879 4.22 17.855 3.510 14.345 3.561 1.511 2.050 79059 4.33 17.820 3.605 14.214 3.558 1.515 2.043 79239 4.24 17.849 3.405 14.444 3.560 1.489 2.072 79599 4.08 17.900 4.302 13.599 3.564 1.658 1.906 79779 4.33 17.820 4.110 13.710 3.558 1.614 1.944 79959 4.14 17.880 3.983 13.897 3.563 1.599 1.963 80139 3.87 17.967 3.694 14.273 3.568 1.543 2.025 80499 4.12 17.886 3.674 14.212 3.563 1.536 2.027 80679 4.19 17.864 3.680 14.184 3.562 1.550 2.011 80859 3.97 17.935 3.651 14.284 3.566 1.536 2.031 81399 4.22 17.855 3.524 14.331 3.561 1.516 2.045 81579 4.22 17.853 3.379 14.474 3.561 1.486 2.075 81759 4.25 17.843 3.219 14.624 3.560 1.472 2.088 81939 4.43 17.786 3.097 14.689 3.555 1.432 2.123 82299 4.38 17.803 3.368 14.435 3.557 1.485 2.072 82479 3.01 18.231 8.288 9.943 3.578 2.299 1.278 82659 -0.18 19.101 18.484 0.617 3.499 3.375 0.124 82839 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 83199 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000