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 ASHOE/MAESA 1 1 1994 10 22 1998 08 07 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 79808 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 79988 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80168 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80348 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 80708 1.29 17.821 13.201 4.620 3.558 3.011 0.547 80888 2.06 17.565 10.156 7.409 3.533 2.654 0.879 81068 2.55 17.397 8.653 8.744 3.511 2.452 1.059 81248 2.09 17.557 10.101 7.455 3.532 2.654 0.878 81608 3.31 17.128 7.018 10.110 3.469 2.198 1.271 81788 2.00 17.586 7.877 9.710 3.535 2.310 1.225 81968 2.62 17.375 8.657 8.718 3.508 2.449 1.058 82148 3.05 17.222 8.415 8.807 3.485 2.420 1.064 82508 3.34 17.119 7.354 9.765 3.467 2.238 1.229 82688 3.14 17.191 7.322 9.869 3.480 2.261 1.218 82868 2.82 17.302 7.917 9.385 3.497 2.334 1.163 83048 2.78 17.318 8.051 9.267 3.500 2.384 1.116 83408 2.64 17.365 8.488 8.877 3.506 2.443 1.063 83588 2.94 17.262 7.887 9.375 3.491 2.325 1.166 83768 2.81 17.306 8.092 9.214 3.498 2.377 1.121 84308 3.28 17.140 7.575 9.564 3.471 2.291 1.180 84488 2.66 17.360 8.449 8.911 3.506 2.437 1.068 84668 2.82 17.302 8.529 8.773 3.497 2.439 1.058 84848 2.70 17.344 8.266 9.078 3.503 2.411 1.093 85208 2.72 17.338 8.301 9.037 3.502 2.413 1.089 85388 3.22 17.161 8.272 8.888 3.474 9999.000 9999.000 85568 2.71 17.343 8.370 8.973 3.503 2.409 1.094 86108 2.54 17.399 8.138 9.262 3.511 2.356 1.156 86288 3.21 17.164 7.171 9.993 3.475 2.235 1.240 86468 3.39 17.098 7.348 9.750 3.464 2.218 1.246 86648 3.99 16.879 5.740 11.138 3.423 1.986 1.437 87008 4.15 16.820 5.382 11.437 3.411 1.940 1.471 87368 3.49 17.064 6.620 10.444 3.458 2.142 1.316 87548 3.86 16.926 6.293 10.633 3.432 2.074 1.358 87908 4.10 16.836 5.775 11.061 3.414 1.984 1.430 88088 3.91 16.910 5.851 11.059 3.429 2.013 1.416 88268 3.80 16.948 6.207 10.741 3.436 2.063 1.373 88448 3.49 17.063 6.555 10.508 3.458 2.142 1.315 88808 3.69 16.989 6.227 10.762 3.444 2.078 1.366 88988 2.88 17.282 6.507 10.775 3.494 2.121 1.373 89168 3.73 16.975 6.180 10.795 3.441 2.058 1.383 89348 3.57 17.035 6.526 10.509 3.452 2.108 1.344 89708 3.98 16.881 6.149 10.732 3.423 2.045 1.379 89888 3.72 16.977 6.181 10.797 3.442 2.067 1.375 90068 3.74 16.970 5.781 11.189 3.440 1.985 1.456 90608 3.72 16.979 6.156 10.823 3.442 2.066 1.376 90788 3.45 17.077 6.339 10.738 3.460 2.074 1.386 90968 3.77 16.960 6.069 10.891 3.439 2.047 1.392 91148 3.39 17.098 5.988 11.110 3.464 2.025 1.439 91508 3.11 17.202 6.682 10.520 3.481 2.139 1.342 91688 3.15 17.185 7.334 9.851 3.479 2.247 1.231 91868 2.54 17.399 7.583 9.816 3.511 2.272 1.240 92048 3.08 17.210 7.456 9.754 3.483 2.270 1.213 92408 2.66 17.358 8.467 8.891 3.505 2.418 1.087 92588 2.60 17.380 8.013 9.367 3.509 2.348 1.161 92768 2.43 17.438 9.026 8.412 3.517 2.514 1.003 92948 2.22 17.513 10.374 7.139 3.526 2.702 0.825 93308 1.63 17.711 11.450 6.261 3.548 2.843 0.705 93488 1.64 17.706 11.562 6.144 3.548 2.846 0.702 93668 1.79 17.658 11.299 6.358 3.543 2.820 0.723 93848 1.65 17.704 11.541 6.163 3.548 2.841 0.707 94208 1.67 17.697 11.485 6.211 3.547 2.833 0.714 94388 1.84 17.640 11.622 6.018 3.541 2.850 0.691 94568 1.62 17.711 11.604 6.108 3.548 2.850 0.699 94748 1.63 17.711 11.348 6.363 3.548 2.817 0.731 95108 2.22 17.513 10.144 7.369 3.526 2.666 0.860 95288 2.02 17.580 10.318 7.262 3.534 2.680 0.854 95468 1.95 17.604 11.074 6.530 3.537 2.795 0.742 96008 1.47 17.762 12.036 5.726 3.553 2.936 0.617 96188 1.52 17.745 12.258 5.487 3.552 2.962 0.589 96368 1.61 17.717 11.545 6.172 3.549 2.866 0.683 96548 1.37 17.796 12.353 5.444 3.556 2.986 0.570 96908 1.26 17.830 12.684 5.146 3.559 3.026 0.533 97088 1.37 17.795 12.469 5.326 3.556 2.989 0.567 97268 1.63 17.711 12.281 5.429 3.548 3.014 0.534 97448 1.43 17.776 12.283 5.493 3.554 2.945 0.609 97808 1.45 17.769 12.206 5.563 3.554 2.953 0.601 97988 0.80 17.977 12.622 5.356 3.569 3.019 0.550 98168 1.60 17.721 11.722 5.999 3.549 2.887 0.662 98348 1.01 17.913 13.126 4.787 3.565 3.081 0.484 98708 1.42 17.779 12.352 5.427 3.555 2.972 0.583 98888 1.30 17.817 12.862 4.955 3.558 3.033 0.525 99068 0.80 17.977 15.692 2.285 3.569 3.297 0.272 99248 0.46 18.084 18.710 -0.626 3.574 3.503 0.071 99608 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99788 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 99968 0.48 18.080 18.352 -0.272 3.574 3.495 0.079 100148 0.75 17.993 15.744 2.249 3.570 3.275 0.295 100508 1.63 17.711 12.343 5.367 3.548 2.937 0.611 100688 1.82 17.647 10.948 6.699 3.542 2.770 0.771 100868 2.00 17.586 10.845 6.742 3.535 2.764 0.771 101408 0.50 18.074 18.282 -0.208 3.574 3.486 0.088 101588 9999.00 9999.000 19.154 9999.000 9999.000 3.534 9999.000 101768 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 101948 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 102308 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 102488 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 102668 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 102848 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000