77 1001 ELKINS, JAMES; MOORE, FRED; WAMSLEY, PAULA; DUTTON, GEOFF U.S. DEPT OF COMMERCE, NOAA / CMDL / NITROUS OXIDE AND HALOCOMPOUNDS DIVISION LACE OMS 1 1 1997 06 30 1998 07 20 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) 55 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. LACE does not measure CCl4. A derived CCl4 from CFC-11 correlation is used in place. LACE does not measure CH3CCl3. A derived CH3CCl3 from CFC-11 correlation is used in place. 1 GMTs Age TotalBr CBry Bry TotalCl CCly Cly 54112 0.14 19.155 9999.000 9999.000 3.486 9999.000 9999.000 54252 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54322 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54462 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54532 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54602 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54672 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54812 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54882 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 54952 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55022 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55162 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55232 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55302 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55372 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55512 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55582 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55652 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55722 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 55862 0.95 18.956 17.234 1.722 3.526 3.264 0.262 55932 1.08 18.923 17.106 1.817 3.532 3.251 0.281 56002 1.17 18.900 16.658 2.243 3.535 3.224 0.311 56072 1.92 18.701 15.710 2.991 3.559 3.170 0.389 56212 1.92 18.701 14.976 3.725 3.559 3.113 0.447 56282 1.08 18.923 15.660 3.263 3.532 3.155 0.377 56352 1.12 18.912 16.240 2.672 3.534 3.210 0.324 56422 1.56 18.797 14.703 4.094 3.549 3.080 0.469 56562 0.61 19.042 17.352 1.690 3.511 3.291 0.220 56632 1.21 18.889 14.938 3.951 3.537 3.078 0.459 56702 1.96 18.689 13.073 5.616 3.561 2.921 0.639 56772 1.38 18.844 15.224 3.619 3.543 3.121 0.422 56912 1.96 18.689 12.893 5.796 3.561 2.910 0.650 56982 1.83 18.725 11.829 6.896 3.557 2.791 0.766 57052 2.10 18.652 11.024 7.628 3.564 2.707 0.857 57122 2.05 18.664 11.087 7.577 3.563 2.717 0.845 57262 2.37 18.575 10.161 8.414 3.569 2.614 0.955 57332 2.51 18.537 10.988 7.549 3.572 2.699 0.872 57402 2.70 18.484 9.419 9.065 3.574 2.509 1.065 57472 3.60 18.218 6.893 11.325 3.578 2.163 1.414 57612 2.47 18.550 9.765 8.785 3.571 2.619 0.952 57682 2.65 18.497 8.262 10.235 3.573 2.438 1.135 57752 2.33 18.588 9.867 8.721 3.568 2.565 1.003 57822 2.14 18.639 10.370 8.269 3.565 2.610 0.955 57962 2.79 18.457 8.881 9.576 3.575 2.465 1.110 58032 3.07 18.375 5.887 12.488 3.577 2.102 1.475 58102 3.07 18.375 8.102 10.273 3.577 2.387 1.191 58172 3.36 18.290 6.696 11.594 3.578 2.205 1.373 58312 4.60 17.908 3.583 14.325 3.565 1.709 1.856 58382 5.06 17.757 2.452 15.305 3.553 1.452 2.101 58452 5.49 17.617 1.607 16.010 3.539 1.137 2.401 58522 7.22 17.007 0.280 16.726 3.447 0.419 3.029 58662 4.86 17.825 1.986 15.839 3.559 1.328 2.231 58732 5.06 17.757 1.747 16.010 3.553 1.278 2.274 58802 4.91 17.808 1.743 16.065 3.557 1.295 2.262 58872 4.80 17.842 1.575 16.267 3.560 1.269 2.291 59012 4.86 17.825 1.370 16.456 3.559 1.265 2.294 59082 5.17 17.723 1.059 16.664 3.550 1.070 2.480 59152 5.81 17.507 1.029 16.478 3.526 0.990 2.535 59222 6.59 17.236 0.663 16.574 3.487 0.792 2.695 59362 6.36 17.316 0.657 16.659 3.499 0.795 2.704 59432 6.70 17.196 0.597 16.599 3.480 0.764 2.717 59502 7.05 17.071 0.533 16.538 3.459 0.694 2.765 59572 8.82 16.395 0.163 16.232 3.316 0.301 3.015 59712 7.05 17.071 0.246 16.825 3.459 0.645 2.814 59782 5.54 17.599 0.371 17.227 3.537 0.897 2.640 59852 5.22 17.705 0.257 17.448 3.548 0.774 2.774 59922 6.47 17.276 0.185 17.091 3.493 0.609 2.884 60062 5.86 17.489 0.125 17.363 3.523 0.603 2.920 60132 5.49 17.617 0.089 17.528 3.539 0.568 2.971 60202 5.43 17.635 0.047 17.588 3.541 0.476 3.065 60272 5.54 17.599 0.036 17.563 3.537 0.434 3.103 60412 5.65 17.563 0.041 17.522 3.532 0.441 3.091 60482 5.54 17.599 0.020 17.579 3.537 0.347 3.189 60552 5.17 17.723 0.012 17.711 3.550 0.314 3.236 60622 5.43 17.635 0.020 17.615 3.541 0.325 3.216 60762 6.03 17.432 0.008 17.424 3.516 0.196 3.319 60832 6.25 17.355 0.005 17.350 3.505 0.140 3.365 60902 5.86 17.489 0.005 17.484 3.523 0.146 3.377 60972 5.59 17.581 0.005 17.576 3.534 0.162 3.373 61112 5.86 17.489 0.005 17.484 3.523 0.157 3.367 61182 6.36 17.316 0.004 17.312 3.499 0.152 3.347 61252 5.65 17.563 0.004 17.559 3.532 0.138 3.395 61322 5.54 17.599 0.004 17.595 3.537 0.133 3.404 61462 5.65 17.563 0.004 17.559 3.532 9999.000 9999.000 61532 5.97 17.451 0.003 17.448 3.518 9999.000 9999.000 61602 6.25 17.355 0.005 17.350 3.505 9999.000 9999.000 61672 6.53 17.256 0.004 17.253 3.490 9999.000 9999.000 61812 6.59 17.236 0.005 17.231 3.487 9999.000 9999.000 61882 6.36 17.316 0.004 17.312 3.499 9999.000 9999.000 61952 6.08 17.413 0.004 17.409 3.513 9999.000 9999.000 62022 6.03 17.432 0.004 17.428 3.516 9999.000 9999.000 62162 5.59 17.581 0.003 17.578 3.534 9999.000 9999.000 62232 5.81 17.507 0.003 17.504 3.526 9999.000 9999.000 62302 5.86 17.489 0.004 17.485 3.523 9999.000 9999.000 62442 5.33 17.670 0.016 17.655 3.544 9999.000 9999.000 62512 5.27 17.688 0.012 17.676 3.546 9999.000 9999.000 62582 5.86 17.489 0.004 17.485 3.523 9999.000 9999.000 62652 5.65 17.563 0.003 17.560 3.532 9999.000 9999.000 62722 5.97 17.451 0.003 17.448 3.518 9999.000 9999.000 62862 5.92 17.470 0.003 17.467 3.521 9999.000 9999.000 62932 5.70 17.544 0.003 17.541 3.530 9999.000 9999.000 63002 6.42 17.296 0.003 17.293 3.496 9999.000 9999.000 63072 6.31 17.336 0.003 17.333 3.502 9999.000 9999.000 63212 6.53 17.256 0.003 17.254 3.490 9999.000 9999.000 63282 6.99 17.092 0.003 17.089 3.463 9999.000 9999.000 63352 6.82 17.155 0.004 17.151 3.473 9999.000 9999.000 63422 6.87 17.134 0.005 17.129 3.470 9999.000 9999.000 63562 7.10 17.050 0.005 17.045 3.455 9999.000 9999.000 63632 7.16 17.028 0.005 17.023 3.451 9999.000 9999.000 63702 6.53 17.256 0.007 17.249 3.490 9999.000 9999.000 63772 5.76 17.526 0.005 17.521 3.528 0.082 3.446 63912 5.97 17.451 0.004 17.447 3.518 0.089 3.429 63982 6.36 17.316 0.005 17.311 3.499 0.107 3.393 64052 5.70 17.544 0.005 17.539 3.530 0.143 3.387 64122 5.97 17.451 0.005 17.446 3.518 0.118 3.400 64262 5.92 17.470 0.006 17.464 3.521 0.127 3.394 64332 6.14 17.394 0.005 17.389 3.510 0.132 3.379 64402 5.49 17.617 0.006 17.611 3.539 0.141 3.398 64472 5.76 17.526 0.006 17.520 3.528 0.138 3.390 64612 5.92 17.470 0.006 17.464 3.521 0.137 3.384 64682 5.70 17.544 0.006 17.538 3.530 0.135 3.395 64752 5.92 17.470 0.007 17.463 3.521 0.137 3.384 64822 6.03 17.432 0.008 17.424 3.516 0.171 3.345 64962 5.17 17.723 0.012 17.711 3.550 0.270 3.280 65032 5.49 17.617 0.017 17.600 3.539 0.311 3.228 65102 5.49 17.617 0.016 17.601 3.539 0.293 3.245 65172 5.70 17.544 0.020 17.525 3.530 0.300 3.231 65312 5.43 17.635 0.036 17.598 3.541 0.403 3.138 65382 5.49 17.617 0.042 17.575 3.539 0.428 3.111 65452 5.70 17.544 0.049 17.496 3.530 0.445 3.085 65522 5.27 17.688 0.050 17.638 3.546 0.440 3.106 65662 5.22 17.705 0.055 17.651 3.548 0.467 3.081 65732 4.75 17.859 0.070 17.789 3.561 0.527 3.034 65802 4.65 17.892 0.137 17.755 3.564 0.621 2.942 65872 5.27 17.688 0.151 17.537 3.546 0.620 2.926 66012 5.65 17.563 0.183 17.379 3.532 0.595 2.938 66082 5.86 17.489 0.192 17.297 3.523 0.580 2.943 66152 4.70 17.875 0.246 17.629 3.562 0.729 2.833 66222 4.70 17.875 0.260 17.616 3.562 0.737 2.826 66362 4.65 17.892 0.376 17.515 3.564 0.848 2.716 66432 5.76 17.526 0.354 17.172 3.528 0.680 2.848 66502 7.58 16.875 0.155 16.720 3.422 0.298 3.124 66572 7.88 16.761 0.211 16.550 3.399 0.357 3.042 66712 8.00 16.714 0.163 16.551 3.389 0.268 3.121 66782 6.99 17.092 0.427 16.665 3.463 0.591 2.872 66852 5.81 17.507 0.628 16.879 3.526 0.744 2.782 66922 5.97 17.451 0.733 16.718 3.518 0.781 2.738 67062 5.59 17.581 0.739 16.842 3.534 0.798 2.736 67132 5.38 17.653 0.763 16.890 3.542 0.839 2.703 67202 4.75 17.859 1.241 16.618 3.561 1.108 2.453 67272 4.75 17.859 1.085 16.773 3.561 1.041 2.521 67412 4.19 18.036 1.362 16.674 3.572 1.271 2.301 67482 4.09 18.067 1.470 16.598 3.573 1.290 2.283 67552 4.14 18.052 1.627 16.425 3.573 1.334 2.239 67622 4.14 18.052 1.672 16.380 3.573 1.293 2.279 67762 4.80 17.842 1.754 16.087 3.560 1.222 2.338 67832 4.50 17.941 2.053 15.887 3.567 1.323 2.244 67902 6.87 17.134 0.112 17.022 3.470 0.230 3.240 67972 7.05 17.071 0.381 16.689 3.459 0.455 3.004 68112 4.55 17.924 2.275 15.649 3.566 1.395 2.171 68182 4.19 18.036 2.697 15.339 3.572 1.538 2.034 68252 4.14 18.052 3.097 14.955 3.573 1.653 1.920 68322 3.90 18.128 3.127 15.002 3.576 1.654 1.921 68462 2.65 18.497 6.537 11.960 3.573 2.235 1.339 68532 2.37 18.575 7.362 11.214 3.569 2.365 1.205 68602 2.24 18.614 7.435 11.179 3.567 2.354 1.213 68672 2.24 18.614 7.124 11.490 3.567 2.304 1.263 68812 1.61 18.785 9.082 9.703 3.551 2.537 1.014 68882 1.96 18.689 9.359 9.330 3.561 2.574 0.986 68952 1.78 18.737 9.765 8.972 3.556 2.607 0.948 69022 1.87 18.713 10.005 8.708 3.558 2.637 0.922 69162 1.92 18.701 9.638 9.063 3.559 2.584 0.976 69232 2.33 18.588 8.020 10.569 3.568 2.401 1.168 69302 1.83 18.725 10.452 8.273 3.557 2.697 0.860 69372 2.93 18.416 6.914 11.503 3.576 2.175 1.401 69512 3.12 18.361 6.973 11.389 3.577 2.184 1.394 69582 2.60 18.510 7.369 11.141 3.573 2.236 1.337 69652 2.47 18.550 8.531 10.018 3.571 2.402 1.169 69722 1.65 18.773 11.681 7.092 3.552 2.735 0.817 69862 1.56 18.797 12.097 6.700 3.549 2.810 0.739 69932 1.38 18.844 13.231 5.612 3.543 2.917 0.627 70002 1.43 18.832 13.852 4.980 3.545 3.030 0.515 70072 0.56 19.053 16.790 2.263 3.509 3.275 0.233 70212 0.52 19.063 17.185 1.879 3.507 3.302 0.204 70282 0.82 18.989 15.687 3.302 3.521 3.162 0.359 70352 1.65 18.773 11.937 6.836 3.552 2.797 0.755 70422 1.30 18.866 12.456 6.411 3.540 2.852 0.688 70562 0.06 19.175 18.726 0.449 3.482 3.390 0.092 70632 0.18 19.145 18.235 0.910 3.489 3.359 0.130 70702 1.12 18.912 14.837 4.074 3.534 3.089 0.444 70772 1.12 18.912 15.435 3.476 3.534 3.133 0.400 70912 0.44 19.084 16.664 2.420 3.502 3.224 0.279 70982 0.78 19.000 15.777 3.222 3.519 3.165 0.354 71052 0.99 18.945 15.552 3.393 3.528 3.154 0.374 71122 0.95 18.956 15.336 3.620 3.526 3.133 0.393 71262 1.08 18.923 16.373 2.550 3.532 3.227 0.305 71332 0.86 18.978 16.157 2.821 3.523 3.196 0.327 71402 1.04 18.934 15.843 3.091 3.530 3.185 0.345 71472 1.12 18.912 15.854 3.058 3.534 3.186 0.347 71612 1.43 18.832 16.042 2.790 3.545 3.208 0.337 71682 1.30 18.866 16.051 2.816 3.540 3.202 0.338 71752 1.25 18.878 16.479 2.399 3.539 3.240 0.299 71822 0.86 18.978 16.942 2.035 3.523 3.262 0.261 71962 0.73 19.010 17.019 1.991 3.517 3.256 0.261 72032 0.73 19.010 16.787 2.223 3.517 3.240 0.277 72102 0.86 18.978 16.614 2.364 3.523 3.231 0.292 72172 -0.02 19.195 17.525 1.670 3.477 3.284 0.193 72312 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72382 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72452 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72522 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72662 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72732 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72802 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 72872 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73012 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73082 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73152 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000 73222 9999.00 9999.000 9999.000 9999.000 9999.000 9999.000 9999.000