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 01 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 72418 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72599 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72779 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72959 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73319 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73499 0.17 18.921 18.493 0.429 3.532 3.395 0.137 73679 0.42 18.856 17.632 1.225 3.542 3.321 0.221 73859 0.91 18.728 15.404 3.324 3.557 3.133 0.424 74219 0.91 18.726 15.374 3.352 3.557 3.136 0.421 74399 0.87 18.739 14.763 3.976 3.556 3.099 0.457 74578 1.19 18.650 14.169 4.481 3.564 3.024 0.540 74759 1.00 18.702 14.228 4.475 3.559 3.047 0.512 75119 0.73 18.775 14.468 4.307 3.552 3.070 0.482 75299 1.10 18.677 14.492 4.185 3.562 3.070 0.492 75479 1.09 18.678 15.009 3.669 3.562 3.132 0.430 75658 0.95 18.718 15.166 3.552 3.558 3.139 0.419 76019 0.91 18.726 15.254 3.472 3.557 3.158 0.399 76199 0.87 18.739 15.364 3.375 3.556 9999.000 9999.000 76379 0.90 18.729 15.344 3.385 3.557 9999.000 9999.000 76919 0.99 18.705 14.931 3.774 3.559 9999.000 9999.000 77099 0.89 18.733 15.374 3.359 3.556 9999.000 9999.000 77279 1.09 18.678 15.504 3.173 3.562 9999.000 9999.000 77459 0.93 18.721 15.215 3.507 3.558 9999.000 9999.000 77818 0.93 18.722 15.225 3.497 3.557 9999.000 9999.000 77999 0.91 18.727 15.225 3.502 3.557 9999.000 9999.000 78179 0.91 18.728 15.294 3.434 3.557 9999.000 9999.000 78719 1.05 18.690 15.155 3.535 3.560 9999.000 9999.000 78899 0.90 18.730 15.294 3.436 3.557 9999.000 9999.000 79079 0.91 18.727 15.264 3.463 3.557 9999.000 9999.000 79259 0.91 18.728 15.244 3.484 3.557 9999.000 9999.000 79619 0.89 18.732 15.304 3.428 3.556 9999.000 9999.000 79978 0.90 18.731 15.344 3.387 3.557 9999.000 9999.000 80159 1.27 18.628 15.324 3.304 3.566 9999.000 9999.000 80519 1.64 18.525 15.505 3.021 3.572 9999.000 9999.000 80699 0.82 18.751 15.697 3.054 3.554 9999.000 9999.000 80879 1.50 18.564 15.789 2.775 3.570 9999.000 9999.000 81059 0.83 18.750 15.667 3.083 3.555 9999.000 9999.000 81419 0.86 18.740 15.515 3.226 3.556 9999.000 9999.000 81599 0.69 18.787 17.163 1.624 3.550 9999.000 9999.000 81779 0.51 18.834 16.947 1.887 3.545 9999.000 9999.000 81959 0.67 18.791 16.265 2.525 3.550 9999.000 9999.000 82319 1.00 18.702 16.137 2.565 3.559 9999.000 9999.000 82499 0.65 18.796 16.301 2.495 3.549 9999.000 9999.000 82679 1.00 18.702 16.051 2.652 3.559 9999.000 9999.000 83218 0.75 18.769 15.937 2.832 3.552 9999.000 9999.000 83399 0.82 18.751 15.968 2.782 3.554 9999.000 9999.000 83579 0.74 18.773 15.990 2.784 3.552 9999.000 9999.000 83759 0.82 18.751 15.711 3.040 3.554 9999.000 9999.000 84119 0.78 18.763 16.074 2.689 3.553 9999.000 9999.000 84299 0.70 18.783 16.118 2.665 3.551 9999.000 9999.000 84479 0.96 18.715 15.983 2.732 3.558 9999.000 9999.000 84659 0.72 18.777 15.973 2.804 3.552 3.239 0.313 85019 0.79 18.761 15.792 2.969 3.553 9999.000 9999.000 85199 0.56 18.822 16.024 2.798 3.546 9999.000 9999.000 85378 0.74 18.772 15.899 2.873 3.552 3.231 0.321 85559 0.82 18.751 16.089 2.662 3.554 3.255 0.300 85919 0.82 18.751 16.106 2.644 3.554 3.263 0.292 86099 0.79 18.761 15.762 2.999 3.553 3.214 0.339 86279 0.73 18.775 15.855 2.920 3.552 3.246 0.306 86458 0.83 18.750 15.607 3.143 3.555 3.199 0.355 86819 0.79 18.758 15.780 2.978 3.554 3.216 0.338 86999 0.56 18.822 16.316 2.505 3.546 3.277 0.270 87179 0.36 18.873 17.602 1.271 3.539 3.339 0.200 87359 -0.05 18.979 18.746 0.233 3.522 3.419 0.103 87719 0.16 18.924 18.589 0.335 3.532 3.398 0.134 87899 0.43 18.855 17.289 1.566 3.542 3.318 0.224 88079 1.00 18.702 15.565 3.137 3.559 3.201 0.358 88618 1.06 18.688 14.592 4.096 3.561 3.113 0.448 88799 0.91 18.727 14.008 4.719 3.557 9999.000 9999.000 88979 1.25 18.635 13.695 4.940 3.565 9999.000 9999.000 89159 1.32 18.615 13.191 5.424 3.567 9999.000 9999.000 89519 1.23 18.640 13.046 5.595 3.565 9999.000 9999.000 89699 1.39 18.594 13.028 5.567 3.568 9999.000 9999.000 89879 1.27 18.628 13.032 5.596 3.566 9999.000 9999.000 90059 1.43 18.584 12.831 5.753 3.569 9999.000 9999.000 90419 1.42 18.587 12.910 5.678 3.569 9999.000 9999.000 90599 1.14 18.665 12.877 5.788 3.563 9999.000 9999.000 90778 1.44 18.583 12.825 5.758 3.569 9999.000 9999.000 90959 1.32 18.615 12.847 5.768 3.567 9999.000 9999.000 91319 1.32 18.615 12.599 6.016 3.567 9999.000 9999.000 91499 1.53 18.556 12.383 6.173 3.570 9999.000 9999.000 91679 1.27 18.628 11.812 6.816 3.566 9999.000 9999.000 91858 1.69 18.510 11.470 7.040 3.573 9999.000 9999.000 92219 1.73 18.500 11.191 7.309 3.573 9999.000 9999.000 92399 1.46 18.577 11.220 7.357 3.569 9999.000 9999.000 92579 1.72 18.502 11.254 7.248 3.573 9999.000 9999.000 92759 1.41 18.590 11.313 7.277 3.568 9999.000 9999.000 93119 1.87 18.459 10.444 8.015 3.575 9999.000 9999.000 93299 1.84 18.470 10.391 8.079 3.575 9999.000 9999.000 93479 2.11 18.391 10.558 7.833 3.577 9999.000 9999.000 94018 1.85 18.464 10.203 8.262 3.575 9999.000 9999.000 94199 1.78 18.485 10.128 8.358 3.574 9999.000 9999.000 94379 1.88 18.457 9.926 8.531 3.575 9999.000 9999.000 94559 1.97 18.432 9.580 8.852 3.576 9999.000 9999.000 94919 2.25 18.349 9.354 8.995 3.578 9999.000 9999.000 95098 1.91 18.449 9.255 9.193 3.575 9999.000 9999.000 95279 1.97 18.432 9.450 8.982 3.576 9999.000 9999.000 95459 1.89 18.453 9.603 8.850 3.575 9999.000 9999.000 95819 1.87 18.460 9.942 8.518 3.575 9999.000 9999.000 95999 2.02 18.418 9.948 8.470 3.576 9999.000 9999.000 96179 1.88 18.458 9.826 8.632 3.575 9999.000 9999.000 96359 1.55 18.551 9.867 8.684 3.571 9999.000 9999.000 96719 2.02 18.418 9.010 9.408 3.576 9999.000 9999.000 96899 1.91 18.447 8.724 9.724 3.575 9999.000 9999.000 97079 1.92 18.445 8.908 9.537 3.575 9999.000 9999.000 97258 1.91 18.447 9.027 9.420 3.575 9999.000 9999.000 97619 1.91 18.447 9.043 9.404 3.575 9999.000 9999.000 97799 1.91 18.450 9.454 8.996 3.575 9999.000 9999.000 97979 0.76 18.768 15.966 2.802 3.553 3.197 0.355 98159 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 98519 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 98699 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000