54 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 05 09 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) 32 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. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 16210 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 16710 1.72 18.715 14.838 3.878 3.558 3.045 0.513 16835 1.74 18.710 14.630 4.079 3.559 3.022 0.537 16960 1.90 18.666 13.903 4.763 3.563 2.948 0.614 17085 1.97 18.647 13.103 5.544 3.564 2.847 0.717 17335 3.21 18.294 7.912 10.382 3.578 2.145 1.433 17460 3.07 18.336 7.456 10.880 3.578 2.090 1.488 17585 4.33 17.950 5.080 12.870 3.567 1.705 1.863 17710 2.59 18.473 7.974 10.499 3.574 2.188 1.387 17960 3.31 18.264 5.030 13.234 3.578 1.764 1.814 18085 4.15 18.007 5.276 12.731 3.571 1.807 1.764 18210 4.14 18.007 5.545 12.463 3.571 1.865 1.705 18335 4.08 18.027 5.510 12.518 3.572 1.840 1.731 18585 4.18 17.996 5.222 12.774 3.570 1.807 1.763 18710 3.94 18.070 5.192 12.878 3.574 1.807 1.766 18835 4.23 17.981 5.084 12.896 3.569 1.795 1.774 19210 2.88 18.391 4.596 13.795 3.577 1.708 1.869 19335 4.22 17.982 5.034 12.948 3.569 1.795 1.774 19460 2.97 18.364 4.788 13.576 3.577 1.745 1.832 19585 4.47 17.905 4.557 13.347 3.564 1.707 1.857 19835 4.65 17.845 4.210 13.634 3.560 1.644 1.916 19960 5.23 17.656 4.058 13.597 3.543 1.616 1.926 20085 4.76 17.811 4.016 13.794 3.557 1.614 1.943 20460 5.55 17.547 4.600 12.947 3.531 1.726 1.804 20585 4.69 17.831 4.156 13.675 3.559 1.633 1.926 20710 5.23 17.656 4.596 13.060 3.543 1.723 1.819 20835 4.43 17.917 4.674 13.244 3.565 1.722 1.843 21085 4.41 17.922 4.672 13.250 3.566 1.727 1.838 21335 4.31 17.956 4.944 13.012 3.568 1.764 1.804 21460 5.17 17.673 5.049 12.624 3.545 1.793 1.751 21710 4.55 17.878 5.221 12.657 3.563 1.831 1.731 21835 4.33 17.948 4.810 13.137 3.567 1.757 1.810 21960 4.35 17.943 4.810 13.133 3.567 1.763 1.804 22085 4.08 18.027 5.405 12.622 3.572 1.847 1.725 22335 4.19 17.993 5.167 12.826 3.570 1.805 1.765 22460 5.17 17.673 5.162 12.511 3.545 1.811 1.734 22585 4.13 18.012 5.296 12.716 3.571 1.824 1.747 22710 5.12 17.691 5.285 12.406 3.546 1.834 1.712 22960 4.86 17.777 5.153 12.625 3.555 1.804 1.750 23085 4.21 17.986 5.063 12.922 3.569 1.798 1.771 23210 4.24 17.976 4.962 13.014 3.569 1.782 1.787 23585 4.41 17.923 4.697 13.227 3.566 1.729 1.837 23710 5.44 17.584 4.672 12.911 3.535 1.733 1.802 23835 4.43 17.916 4.639 13.277 3.565 1.720 1.845 23960 4.50 17.895 4.330 13.565 3.564 1.679 1.884 24210 3.89 18.085 4.056 14.029 3.574 1.620 1.954 24335 4.85 17.780 3.883 13.898 3.555 1.579 1.976 24460 5.02 17.726 3.834 13.892 3.550 1.588 1.961 24585 4.69 17.831 4.106 13.725 3.559 1.627 1.933 24835 4.76 17.811 3.976 13.834 3.557 1.607 1.951 24960 5.23 17.656 3.931 13.725 3.543 1.607 1.936 25085 4.68 17.835 4.125 13.711 3.559 1.630 1.929 25210 4.70 17.828 4.604 13.224 3.559 1.724 1.835 25460 4.70 17.828 4.692 13.136 3.559 1.726 1.833 25585 4.41 17.922 4.682 13.240 3.566 1.724 1.842 25710 4.91 17.760 4.486 13.275 3.553 1.703 1.850 25835 4.45 17.911 4.570 13.340 3.565 1.710 1.855 26085 4.35 17.941 4.782 13.159 3.567 1.742 1.825 26210 5.12 17.691 5.212 12.479 3.546 1.816 1.730 26335 4.13 18.010 5.186 12.824 3.571 1.816 1.754 26460 5.44 17.584 5.350 12.234 3.535 1.838 1.697 26710 4.70 17.828 5.260 12.568 3.559 1.828 1.731 26835 4.09 18.023 5.315 12.708 3.571 1.838 1.733 26960 4.29 17.959 5.256 12.703 3.568 1.828 1.740 27335 4.15 18.005 5.146 12.859 3.571 1.821 1.749 27460 3.70 18.146 4.493 13.653 3.576 1.719 1.857 27585 4.52 17.887 4.444 13.443 3.563 1.693 1.870 27710 4.24 17.976 4.677 13.298 3.569 1.732 1.836 27960 4.45 17.911 4.483 13.428 3.565 1.707 1.858 28085 4.74 17.816 4.023 13.793 3.558 1.610 1.948 28210 4.91 17.760 3.967 13.794 3.553 1.606 1.947 28335 4.88 17.772 3.807 13.966 3.554 1.565 1.989 28585 4.75 17.813 4.055 13.757 3.558 1.607 1.951 28710 4.70 17.828 3.958 13.870 3.559 1.618 1.941 28835 4.69 17.832 4.131 13.702 3.559 1.624 1.935 28960 5.50 17.566 3.957 13.609 3.533 1.610 1.923 29210 5.60 17.529 3.938 13.591 3.528 1.604 1.925 29335 4.81 17.795 3.920 13.875 3.556 1.591 1.965 29460 4.81 17.794 4.164 13.631 3.556 1.641 1.915 29585 4.44 17.912 4.615 13.297 3.565 1.711 1.854 29835 9999.00 9999.000 4.657 9999.000 9999.000 1.720 9999.000 29960 9999.00 9999.000 4.763 9999.000 9999.000 1.742 9999.000 30085 9999.00 9999.000 4.757 9999.000 9999.000 1.739 9999.000 30210 9999.00 9999.000 4.634 9999.000 9999.000 1.725 9999.000 30460 9999.00 9999.000 5.049 9999.000 9999.000 1.789 9999.000 30585 9999.00 9999.000 4.835 9999.000 9999.000 1.756 9999.000 30710 9999.00 9999.000 5.127 9999.000 9999.000 1.809 9999.000 31085 4.19 17.994 5.142 12.852 3.570 1.802 1.768 31210 4.45 17.911 4.980 12.931 3.565 1.791 1.774 31335 4.34 17.944 4.761 13.183 3.567 1.746 1.821 31460 4.09 18.023 4.892 13.131 3.571 1.772 1.799 31710 4.04 18.039 4.648 13.390 3.572 1.720 1.852 31835 4.49 17.897 4.505 13.392 3.564 1.692 1.872 31960 4.19 17.991 4.305 13.686 3.570 1.675 1.895 32085 4.77 17.806 3.984 13.822 3.557 1.596 1.961 32335 4.85 17.780 3.803 13.978 3.555 1.574 1.981 32460 4.24 17.976 3.997 13.978 3.569 1.621 1.948 32585 4.76 17.811 3.976 13.834 3.557 1.606 1.951 32710 3.74 18.131 3.991 14.140 3.576 1.619 1.957 32960 4.29 17.959 4.107 13.852 3.568 1.632 1.936 33085 4.71 17.825 4.034 13.791 3.559 1.618 1.940 33210 4.40 17.927 3.928 14.000 3.566 1.606 1.960 33335 4.80 17.797 3.893 13.904 3.556 1.591 1.965 33585 4.74 17.816 4.019 13.797 3.558 1.607 1.951 33710 3.79 18.116 4.480 13.636 3.575 1.697 1.878 33835 4.48 17.900 4.464 13.436 3.564 1.696 1.869 33960 4.04 18.039 4.525 13.514 3.572 1.698 1.874 34210 3.79 18.116 4.671 13.444 3.575 1.729 1.846 34335 4.26 17.971 4.961 13.010 3.569 1.774 1.795 34460 3.60 18.176 5.024 13.152 3.577 1.788 1.788 34835 4.20 17.990 5.128 12.862 3.570 1.796 1.774 34960 3.40 18.235 5.167 13.068 3.578 1.808 1.769 35085 4.28 17.963 4.927 13.036 3.568 1.765 1.803 35210 3.60 18.176 4.751 13.425 3.577 1.751 1.826 35460 3.89 18.085 4.952 13.134 3.574 1.772 1.802 35585 4.46 17.907 4.542 13.366 3.565 1.700 1.865 35710 4.04 18.039 4.789 13.250 3.572 1.731 1.841 35835 3.02 18.348 8.503 9.845 3.578 2.262 1.315 36085 2.42 18.523 10.935 7.588 3.572 2.579 0.993 36210 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 36335 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 36460 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000