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 19 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 68821 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69001 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69181 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69361 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69721 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 69901 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70081 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70261 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70621 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70801 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 70981 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71161 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71521 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71701 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 71881 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72061 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72421 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72601 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72781 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73321 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73501 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73681 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73861 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74221 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74401 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 74581 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75121 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75301 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75481 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 75661 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76021 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76381 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76561 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 76921 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77101 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77281 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77461 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 77821 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78001 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78181 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 78361 9999.00 9999.000 19.165 9999.000 9999.000 3.414 9999.000 78721 0.83 18.851 18.370 0.481 3.542 3.359 0.184 78901 0.44 18.952 17.843 1.109 3.527 3.328 0.199 79081 0.57 18.919 17.831 1.088 3.532 3.331 0.201 79621 0.44 18.952 17.841 1.111 3.527 3.331 0.196 79801 0.39 18.963 17.485 1.478 3.525 3.303 0.223 79981 0.46 18.946 17.437 1.509 3.528 3.299 0.229 80161 0.18 19.017 17.240 1.777 3.516 3.294 0.222 80521 -0.20 19.111 17.295 1.816 3.496 3.298 0.198 80701 0.46 18.946 17.401 1.544 3.528 3.305 0.223 80881 -0.29 19.132 17.529 1.603 3.492 3.319 0.173 81061 0.44 18.950 17.662 1.288 3.527 3.326 0.202 81421 0.52 18.931 16.572 2.359 3.530 3.233 0.297 81601 2.80 18.300 7.281 11.019 3.578 2.127 1.451 81781 1.07 18.787 11.968 6.819 3.550 2.781 0.769 81961 1.81 18.584 9.586 8.997 3.569 2.495 1.074 82321 2.70 18.328 6.947 11.382 3.578 2.120 1.458 82501 2.58 18.366 6.848 11.518 3.577 2.103 1.475 82681 3.04 18.227 6.693 11.535 3.578 2.068 1.510 82861 3.05 18.225 5.871 12.354 3.578 1.945 1.633 83221 2.94 18.259 6.076 12.183 3.578 9999.000 9999.000 83401 3.09 18.213 5.903 12.310 3.577 1.970 1.607 83581 3.13 18.200 5.644 12.556 3.577 1.928 1.649 83761 3.24 18.168 5.422 12.746 3.577 1.889 1.688 84121 2.75 18.314 5.816 12.498 3.578 1.962 1.616 84301 2.97 18.249 5.914 12.335 3.578 1.990 1.588 84481 2.42 18.412 6.119 12.292 3.576 2.033 1.543 85021 2.80 18.299 6.215 12.084 3.578 2.059 1.519 85201 1.77 18.597 9.319 9.277 3.568 2.470 1.098 85381 0.74 18.873 14.193 4.680 3.539 3.031 0.508 85561 -0.75 19.240 18.625 0.615 3.465 3.417 0.048 85921 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000