56 1001 ELKINS, JAMES; WAMSLEY, PAULA; HURST, DALE; ROMASHKIN, PAVEL; DUTTON, GEOFF U.S. DEPT OF COMMERCE, NOAA / CMDL / NITROUS OXIDE AND HALOCOMPOUNDS DIVISION ACATS POLARIS 1 1 1997 04 16 1998 09 09 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) 34 Total chlorine and bromine are based on in situ measurements of organic species from ACATS-IV [see Elkins et al., 1996]. Mean age of the air in years from tropopause is calculated using tropospheric trends from Geller et al., [1997] and formula from Volk et al., [1997]. Total chlorine calculations based on total chlorine from Montzka et al.,[1996] and formula from Woodbridge et al. [1995] for missing chlorine species, HCFC-22 and CH3Cl. Total bromine calculations are from Wamsley et al., [1997]. All values derived from theta < 380 were excluded. 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, et al., 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, et al., 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, et al., 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. To calculate HCFC-22 ALIAS CH4 was used. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 81309 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81434 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81559 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81684 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 81934 9999.00 9999.000 12.461 9999.000 9999.000 9999.000 9999.000 82059 9999.00 9999.000 14.985 9999.000 9999.000 9999.000 9999.000 82184 9999.00 9999.000 12.234 9999.000 9999.000 9999.000 9999.000 82309 9999.00 9999.000 12.531 9999.000 9999.000 9999.000 9999.000 82559 3.76 18.107 6.088 12.019 3.575 9999.000 9999.000 82684 3.73 18.117 6.124 11.993 3.575 9999.000 9999.000 82809 4.30 17.939 5.480 12.459 3.567 9999.000 9999.000 82934 4.03 18.024 5.234 12.790 3.571 9999.000 9999.000 83184 4.74 17.796 4.059 13.737 3.556 9999.000 9999.000 83309 4.16 17.983 4.182 13.801 3.569 9999.000 9999.000 83434 4.38 17.912 4.707 13.205 3.565 9999.000 9999.000 83559 4.37 17.914 4.439 13.474 3.565 9999.000 9999.000 83809 4.35 17.921 4.358 13.563 3.566 9999.000 9999.000 83934 4.18 17.977 4.241 13.735 3.569 9999.000 9999.000 84059 4.15 17.985 4.213 13.773 3.569 9999.000 9999.000 84434 3.34 18.236 3.977 14.259 3.578 9999.000 9999.000 84559 3.91 18.059 3.952 14.107 3.573 9999.000 9999.000 84684 4.18 17.977 4.288 13.689 3.569 9999.000 9999.000 84809 4.38 17.913 4.454 13.459 3.565 9999.000 9999.000 85059 3.88 18.071 3.905 14.166 3.574 9999.000 9999.000 85184 3.98 18.040 3.941 14.099 3.572 9999.000 9999.000 85309 4.42 17.900 4.597 13.304 3.564 9999.000 9999.000 85684 4.79 17.779 4.901 12.878 3.555 9999.000 9999.000 85809 3.99 18.037 5.852 12.185 3.572 9999.000 9999.000 85934 3.83 18.086 6.073 12.013 3.574 9999.000 9999.000 86059 9999.00 9999.000 8.392 9999.000 9999.000 9999.000 9999.000 86309 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86559 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 86684 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000