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 09 08 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 67050 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67175 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67300 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 67675 0.46 19.124 15.319 3.805 3.494 3.132 0.362 67800 1.01 18.988 13.701 5.287 3.521 2.955 0.566 67925 0.32 19.159 15.694 3.465 3.485 3.240 0.245 68050 0.47 19.122 15.260 3.862 3.494 3.132 0.362 68300 1.56 18.848 12.361 6.488 3.543 2.803 0.739 68425 1.94 18.747 11.427 7.319 3.555 2.720 0.835 68550 2.20 18.677 10.784 7.893 3.562 2.607 0.954 68675 2.21 18.673 10.551 8.122 3.562 2.605 0.957 68925 2.48 18.598 9.940 8.658 3.568 2.523 1.045 69050 2.65 18.552 9.596 8.956 3.571 2.464 1.107 69175 2.53 18.585 8.933 9.652 3.569 2.370 1.198 69300 3.17 18.403 8.271 10.131 3.577 2.277 1.300 69550 4.12 18.117 5.875 12.243 3.575 1.899 1.676 69675 4.45 18.017 5.715 12.302 3.571 1.852 1.719 69800 4.19 18.096 5.655 12.441 3.574 1.863 1.711 70175 3.56 18.287 6.228 12.059 3.578 1.950 1.628 70300 4.10 18.123 5.925 12.198 3.575 1.907 1.668 70425 3.76 18.229 6.096 12.133 3.578 1.923 1.654 70550 3.95 18.172 6.356 11.816 3.577 1.976 1.601 70800 3.69 18.249 6.970 11.279 3.578 2.080 1.498 70925 3.90 18.185 6.735 11.450 3.577 2.039 1.538 71050 3.93 18.177 6.372 11.805 3.577 1.957 1.620 71425 3.52 18.301 6.956 11.345 3.578 2.085 1.493 71550 3.68 18.251 6.951 11.300 3.578 2.086 1.492 71675 3.81 18.215 7.014 11.201 3.577 2.090 1.488 71800 3.76 18.229 6.782 11.447 3.578 2.053 1.525 72050 3.66 18.258 7.029 11.229 3.578 2.095 1.483 72175 3.13 18.413 7.022 11.391 3.576 2.087 1.489 72300 3.73 18.237 6.875 11.362 3.578 2.066 1.512 72425 4.15 18.110 6.688 11.422 3.575 2.035 1.540 72675 3.56 18.287 6.791 11.496 3.578 2.043 1.535 72800 3.77 18.224 6.750 11.474 3.578 2.047 1.530 72925 3.47 18.316 6.662 11.654 3.578 2.027 1.551 73050 4.04 18.142 6.056 12.086 3.576 1.926 1.650 73300 4.15 18.111 5.800 12.311 3.575 1.881 1.694 73425 3.32 18.358 6.198 12.160 3.578 1.935 1.643 73550 4.13 18.115 5.820 12.296 3.575 1.890 1.686 73675 3.90 18.185 5.860 12.325 3.577 1.878 1.699 73925 1.99 18.735 11.143 7.592 3.556 2.681 0.875 74050 1.86 18.768 11.595 7.174 3.553 2.711 0.842 74175 1.85 18.770 12.194 6.577 3.552 2.819 0.733 74550 2.56 18.576 9.827 8.749 3.569 2.471 1.098 74675 3.04 18.440 9.032 9.408 3.576 2.364 1.211 74800 3.24 18.381 8.139 10.242 3.577 2.232 1.345 74925 3.56 18.287 7.327 10.960 3.578 2.110 1.468 75175 4.45 18.017 5.770 12.247 3.571 1.866 1.705 75300 4.09 18.129 5.895 12.234 3.576 1.916 1.660 75425 4.00 18.155 5.870 12.285 3.576 1.903 1.673 75550 4.05 18.139 6.016 12.123 3.576 1.932 1.644 75800 4.67 17.946 4.329 13.617 3.567 1.614 1.953 75925 4.85 17.888 3.805 14.083 3.563 1.488 2.075 76050 4.83 17.894 3.867 14.027 3.564 1.516 2.047 76175 5.06 17.821 4.343 13.479 3.558 1.595 1.963 76425 5.01 17.838 3.458 14.380 3.560 1.399 2.161 76550 4.92 17.866 3.596 14.270 3.562 1.463 2.098 76675 4.80 17.904 3.894 14.010 3.564 1.499 2.066 76800 4.66 17.950 4.376 13.573 3.567 1.618 1.949 77050 4.25 18.079 5.471 12.608 3.574 1.829 1.745 77175 3.81 18.215 5.765 12.450 3.577 1.867 1.711 77300 4.15 18.108 5.730 12.378 3.575 1.872 1.702 77425 4.50 18.001 4.911 13.090 3.570 1.715 1.855 77675 4.80 17.904 4.859 13.045 3.564 1.694 1.871 77800 4.08 18.132 5.965 12.167 3.576 1.903 1.673 77925 3.90 18.185 5.511 12.674 3.577 1.814 1.763 78300 4.26 18.075 5.502 12.573 3.574 1.817 1.757 78425 4.30 18.064 5.536 12.528 3.573 1.818 1.755 78550 4.18 18.099 5.660 12.440 3.575 1.857 1.718 78675 4.15 18.110 5.745 12.365 3.575 1.860 1.715 78925 3.76 18.229 5.780 12.450 3.578 1.869 1.709 79050 4.16 18.107 5.725 12.383 3.575 1.872 1.703 79175 4.30 18.064 5.830 12.234 3.573 1.883 1.690 79300 4.01 18.153 6.088 12.065 3.576 1.935 1.641 79550 3.93 18.175 6.302 11.874 3.577 1.965 1.612 79675 4.05 18.140 6.312 11.828 3.576 1.955 1.621 79800 3.79 18.220 6.684 11.536 3.578 2.024 1.553 79925 3.85 18.200 6.842 11.358 3.577 2.042 1.535 80175 3.71 18.244 7.492 10.751 3.578 2.138 1.440 80300 2.87 18.488 9.022 9.466 3.574 2.365 1.209 80425 2.76 18.520 10.129 8.392 3.572 2.536 1.037 80550 2.04 18.719 11.103 7.616 3.558 2.644 0.914 80800 2.62 18.560 9.652 8.909 3.570 2.449 1.121 80925 3.90 18.185 7.718 10.467 3.577 2.169 1.408 81050 3.25 18.381 8.114 10.267 3.577 2.226 1.352 81175 4.00 18.155 7.563 10.592 3.576 2.147 1.430 81425 4.50 18.001 5.620 12.381 3.570 1.832 1.738 81550 4.28 18.068 5.393 12.675 3.573 1.811 1.762 81675 4.55 17.985 5.216 12.769 3.569 1.770 1.799 82050 4.44 18.018 4.935 13.082 3.571 1.750 1.821 82175 4.60 17.969 4.454 13.515 3.569 1.664 1.904 82300 4.70 17.938 4.200 13.738 3.567 1.622 1.944 82425 4.75 17.921 4.018 13.902 3.566 1.585 1.981 82675 4.85 17.888 3.889 13.999 3.563 1.560 2.003 82800 4.79 17.907 3.938 13.969 3.565 1.567 1.998 82925 4.90 17.871 3.778 14.093 3.562 1.539 2.023 83050 4.90 17.871 3.569 14.303 3.562 1.501 2.061 83300 4.95 17.858 3.442 14.416 3.561 1.478 2.083 83425 4.85 17.888 3.424 14.464 3.563 1.469 2.094 83550 4.92 17.865 3.527 14.338 3.562 1.493 2.069 83675 5.27 17.753 3.307 14.446 3.552 1.455 2.097 83925 5.37 17.719 3.246 14.473 3.549 1.440 2.109 84050 5.03 17.832 3.190 14.642 3.559 1.426 2.133 84175 5.01 17.838 3.165 14.673 3.560 1.422 2.137 84300 4.97 17.852 3.367 14.485 3.561 1.471 2.090 84550 5.17 17.784 2.670 15.114 3.555 1.283 2.272 84675 5.64 17.631 2.610 15.020 3.540 1.252 2.288 84800 4.86 17.886 3.731 14.154 3.563 1.520 2.043 84925 5.32 17.736 3.579 14.157 3.551 1.483 2.068 85175 5.01 17.838 2.893 14.945 3.560 1.335 2.224 85300 5.05 17.823 3.105 14.718 3.558 1.386 2.173 85425 5.48 17.684 2.438 15.246 3.546 1.249 2.296 85800 5.38 17.715 1.843 15.871 3.549 1.052 2.497 85925 5.11 17.804 2.388 15.417 3.557 1.232 2.325 86050 5.25 17.758 2.386 15.372 3.553 1.239 2.314 86175 4.90 17.871 2.739 15.132 3.562 1.357 2.206 86425 4.75 17.921 2.801 15.120 3.566 1.352 2.213 86550 5.13 17.798 2.833 14.965 3.556 1.355 2.201 86675 5.01 17.838 2.841 14.997 3.560 1.366 2.194 86800 5.14 17.794 2.757 15.037 3.556 1.348 2.208 87050 5.15 17.792 2.747 15.045 3.556 1.343 2.213 87175 4.85 17.888 2.863 15.025 3.563 1.362 2.201 87300 5.17 17.784 2.670 15.114 3.555 1.313 2.242 87425 4.75 17.921 2.690 15.230 3.566 1.312 2.253 87675 5.06 17.821 2.853 14.969 3.558 1.357 2.202 87800 5.26 17.756 2.334 15.422 3.553 1.214 2.339 87925 5.32 17.736 2.201 15.535 3.551 1.167 2.383 88050 5.34 17.730 2.002 15.727 3.550 1.098 2.452 88300 5.32 17.735 2.120 15.615 3.551 1.153 2.398 88425 5.43 17.701 2.068 15.633 3.547 1.119 2.429 88550 5.33 17.732 2.074 15.658 3.550 1.126 2.424 88675 5.37 17.719 2.088 15.631 3.549 1.114 2.435 88925 5.37 17.719 2.067 15.651 3.549 1.119 2.430 89050 5.32 17.737 2.111 15.625 3.551 1.140 2.411 89175 5.22 17.770 2.215 15.556 3.554 1.152 2.402 89550 5.30 17.743 2.160 15.583 3.551 1.176 2.376 89675 5.32 17.736 2.543 15.193 3.551 1.284 2.267 89800 5.21 17.773 2.535 15.238 3.554 1.276 2.278 89925 5.22 17.770 2.544 15.226 3.554 1.277 2.277 90175 5.37 17.719 2.248 15.471 3.549 1.171 2.378 90300 5.29 17.747 2.238 15.509 3.552 1.183 2.368 90425 5.37 17.719 2.227 15.492 3.549 1.146 2.403 90550 5.22 17.768 2.499 15.270 3.554 1.242 2.312 90800 5.07 17.817 2.992 14.825 3.558 1.392 2.166 90925 4.90 17.871 3.118 14.753 3.562 1.410 2.152 91050 5.06 17.823 3.071 14.751 3.558 1.400 2.159 91175 4.80 17.904 2.865 15.040 3.564 1.351 2.213 91425 4.90 17.871 2.731 15.140 3.562 1.327 2.235 91550 5.19 17.779 2.585 15.193 3.555 1.300 2.255 91675 5.11 17.804 2.595 15.209 3.557 1.303 2.254 91800 5.00 17.840 3.240 14.600 3.560 1.433 2.126 92050 3.76 18.229 6.832 11.397 3.578 2.029 1.549 92175 2.95 18.467 9.082 9.386 3.575 2.367 1.207 92300 2.34 18.639 10.338 8.301 3.565 2.545 1.019 92425 1.90 18.759 11.130 7.629 3.554 2.646 0.908 92675 1.11 18.964 13.551 5.413 3.525 2.947 0.578 92800 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 92925 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000