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 08 08 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 72438 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72618 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72798 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72978 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73338 0.10 18.946 18.624 0.322 3.528 3.383 0.146 73518 0.29 18.895 17.348 1.547 3.536 3.320 0.216 73698 0.84 18.751 15.009 3.741 3.555 3.104 0.451 73878 0.70 18.790 15.277 3.513 3.550 3.137 0.413 74238 0.99 18.710 13.910 4.801 3.559 2.998 0.561 74418 1.43 18.590 12.801 5.789 3.568 2.896 0.673 74598 1.42 18.593 12.047 6.545 3.568 2.807 0.761 74778 1.48 18.577 12.125 6.452 3.569 9999.000 9999.000 75138 1.57 18.551 11.424 7.127 3.571 9999.000 9999.000 75318 1.55 18.555 11.489 7.066 3.571 9999.000 9999.000 75498 1.71 18.512 11.238 7.274 3.573 9999.000 9999.000 75678 1.70 18.515 10.974 7.541 3.573 9999.000 9999.000 76038 1.76 18.497 10.706 7.791 3.573 9999.000 9999.000 76218 1.89 18.458 10.696 7.762 3.575 9999.000 9999.000 76398 1.76 18.497 10.666 7.831 3.573 9999.000 9999.000 76938 1.80 18.485 10.869 7.616 3.574 9999.000 9999.000 77118 1.65 18.527 11.072 7.455 3.572 9999.000 9999.000 77298 1.57 18.551 11.154 7.396 3.571 9999.000 9999.000 77478 1.62 18.538 11.201 7.337 3.571 9999.000 9999.000 77838 1.54 18.560 11.506 7.054 3.570 9999.000 9999.000 78018 1.71 18.512 11.231 7.281 3.573 9999.000 9999.000 78198 1.61 18.539 11.245 7.294 3.571 9999.000 9999.000 78738 1.85 18.472 11.527 6.945 3.575 9999.000 9999.000 78918 1.52 18.566 11.521 7.044 3.570 9999.000 9999.000 79098 1.80 18.485 11.592 6.893 3.574 9999.000 9999.000 79278 1.45 18.585 11.841 6.744 3.569 9999.000 9999.000 79638 1.36 18.611 12.179 6.432 3.567 9999.000 9999.000 79998 1.32 18.619 12.336 6.284 3.566 9999.000 9999.000 80178 1.34 18.615 12.290 6.325 3.567 9999.000 9999.000 80538 1.34 18.615 12.420 6.195 3.567 9999.000 9999.000 80718 1.31 18.623 12.364 6.258 3.566 9999.000 9999.000 80898 1.11 18.678 12.458 6.220 3.562 9999.000 9999.000 81078 1.27 18.633 12.539 6.094 3.565 9999.000 9999.000 81438 1.32 18.621 12.351 6.270 3.566 9999.000 9999.000 81618 1.29 18.628 12.371 6.256 3.566 9999.000 9999.000 81798 1.35 18.612 12.231 6.381 3.567 9999.000 9999.000 81978 1.25 18.640 12.630 6.010 3.565 9999.000 9999.000 82338 0.75 18.774 14.992 3.783 3.552 9999.000 9999.000 82518 0.42 18.863 16.597 2.266 3.541 3.264 0.277 82698 0.10 18.946 17.870 1.076 3.528 3.365 0.163 83238 0.02 18.964 18.889 0.075 3.525 3.416 0.109 83418 0.05 18.957 18.030 0.927 3.526 3.357 0.170 83598 0.48 18.846 16.312 2.533 3.543 3.219 0.324 83778 0.62 18.810 15.376 3.434 3.548 3.165 0.383 84138 1.11 18.678 12.591 6.086 3.562 9999.000 9999.000 84318 1.35 18.612 12.281 6.331 3.567 9999.000 9999.000 84498 1.34 18.615 11.796 6.819 3.567 9999.000 9999.000 84678 1.49 18.573 11.691 6.881 3.569 9999.000 9999.000 85038 1.43 18.591 11.825 6.766 3.568 9999.000 9999.000 85218 1.66 18.525 10.719 7.806 3.572 9999.000 9999.000 85398 1.77 18.494 10.553 7.941 3.574 9999.000 9999.000 85578 1.71 18.512 10.486 8.026 3.573 9999.000 9999.000 85938 1.48 18.577 10.296 8.281 3.569 9999.000 9999.000 86118 1.84 18.474 10.276 8.197 3.574 9999.000 9999.000 86298 1.62 18.538 10.342 8.195 3.571 9999.000 9999.000 86478 1.82 18.478 10.319 8.159 3.574 9999.000 9999.000 86838 2.07 18.409 9.341 9.068 3.577 9999.000 9999.000 87018 2.18 18.376 9.293 9.084 3.577 9999.000 9999.000 87198 2.07 18.408 9.415 8.993 3.577 9999.000 9999.000 87378 2.08 18.404 9.225 9.179 3.577 9999.000 9999.000 87738 1.94 18.445 9.683 8.762 3.575 9999.000 9999.000 87918 2.13 18.391 9.205 9.186 3.577 9999.000 9999.000 88098 2.13 18.390 9.394 8.997 3.577 9999.000 9999.000 88638 2.06 18.410 9.510 8.901 3.576 9999.000 9999.000 88818 2.13 18.390 9.198 9.193 3.577 9999.000 9999.000 88998 2.17 18.378 8.999 9.379 3.577 9999.000 9999.000 89178 2.08 18.404 9.100 9.304 3.577 9999.000 9999.000 89538 2.18 18.376 8.992 9.384 3.577 9999.000 9999.000 89718 2.18 18.375 8.954 9.421 3.577 9999.000 9999.000 89898 2.22 18.362 9.005 9.358 3.577 9999.000 9999.000 90078 1.98 18.433 9.819 8.613 3.576 9999.000 9999.000 90438 0.98 18.713 13.993 4.720 3.558 3.011 0.547 90618 0.10 18.946 16.525 2.421 3.528 3.252 0.276 90798 0.08 18.950 18.528 0.422 3.527 3.392 0.135 90978 0.05 18.957 18.521 0.436 3.526 3.398 0.128 91338 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 91518 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000