74 1001 ;header lines file format index ATLAS, ELLIOT NCAR MIXING RATIOS FROM WHOLE AIR SAMPLER ACCENT 1 1 ;vol total vol 1999 04 22 2000 09 01 ;DATE RDATE 0 ;DX(1) Elapsed UT seconds from 0 hours on T/O DATE ;UTMID 42 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ;scale factors 99999 99999 999 999 9.99 999.9 99.9 99.99 99.99 99.99 99.99 99.99 999.9 999.99 999.99 999 999.99 99.99 99.99 99.99 999.9 999.9 99.99 99.99 99.99 99.99 99.99 99.99 99.99 99.99 99.99 99.99 9999 9999 9999 999.9 999.9 999.9 999.9 999.9 9999 9999 UTSTART (sec) ;MMS data UTSTOP (sec) ;MMS data CCl3F (pptv) CFC 11 CCl2F2 (pptv) CFC 12 C2Cl4F2 (pptv) CFC 112 C2Cl3F3 (pptv) CFC 113 C2Cl2F4 (pptv) CFC 114 C2ClF5 (pptv) CFC 115 CBrF3 (pptv) Halon 1301 CBrClF2 (pptv) Halon 1211 C2Br2F4 (pptv) Halon 2402 C2H2F4 (pptv) HFC 134a CHClF2 (pptv) HCFC 22 CH3CCl2F (pptv) HCFC 141b CH3CClF2 (pptv) HCFC 142b CH3Cl (pptv) Methyl chloride CH3Br (pptv) Methyl bromide CH3I (pptv) Methyl iodide CH2Cl2(pptv) Methylene chloride CHCl3 (pptv) Chloroform CH3CCl3 (pptv) Methyl chloroform CCl4 (pptv) Carbon tetrachloride C2HCl3 (pptv) Trichlorethylene C2Cl4 (pptv) Perchlorethylene CH3ONO2 (pptv) Methyl nitrate C2H5ONO2 (pptv) Ethyl nitrate C3H7ONO2 (pptv) Isopropyl nitrate C3H7ONO2 (pptv) n-propyl nitrate C4H9ONO2 (pptv) 2-butyl nitrate CH2Br2 (pptv) Methylene bromide CHBr2Cl (pptv) Dibromochloromethane CHBr3 (pptv) Bromoform C2H6 (pptv) Ethane C2H2 (pptv) Ethyne C3H8 (pptv) Propane C4H10 (pptv) i-Butane C4H10 (pptv) n-Butane C5H12 (pptv) Isopentane C5H12 (pptv) n-Pentane C6H6 (pptv) Benzene CO (ppbv) Carbon monoxide CH4 (ppbv) Methane 2 ;number of special comment lines (specific to this flight) UTSTART and UTSTOP times were estimated as plus and minus 20 seconds, respectively, from the UTMID time. Further refinements are necessary on the start and stop times. 14 ;number of normal comment lines (occur each flight) UTSTART WAS THE TIME THE CANISTER BEGAN FILLING UTMID WAS THE TIME THE CANISTER WAS HALF FULL UTSTOP WAS THE TIME THE CANISTER FINISHED FILLING Calibrations for these compounds is ongoing. 0.0 - Concentration Below Detection Limit CO measurements in the lower stratosphere (O3>300 ppb) may be high by 10-15 ppb due to canister artifact. Some trace gases during the Fall ACCENT mission may have been influenced by some pump contamination, but only obvious outliers have been removed from the data set. For questions, contact Elliot Atlas, Atmospheric Chemistry Division, NCAR, PO Box 3000, Boulder CO Ph: 303-497-1425, e-mail: atlas@acd.ucar.edu UTMID UTSTART UTSTOP CFC11 CFC12 CFC112 CFC113 CFC114 CFC115 CBrF3 CBrClF2 C2Br2F4 C2H2F4 CHClF2 CH3CCl2F CH3CClF2 CH3Cl CH3Br CH3I CH2Cl2 CHCl3 CH3CCl3 CCl4 C2HCl3 C2Cl4 MeONO2 EtONO2 iPropONO2 nPropONO2 2ButylONO2 CH2Br2 CHBr2Cl CHBr3 Ethane Ethyne Propane iButane nButane iPentane nPentane Benzene CO CH4 74174 74154 74194 276 534 0.44 80.9 13.8 6.45 2.61 3.90 0.47 11.57 135.6 10.72 11.68 598 10.36 0.08 21.80 6.83 57.0 98.3 0.27 2.41 2.19 1.85 1.45 0.42 1.11 0.87 0.15 0.49 774 129 65 4.8 6.1 1.4 1.3 20.6 121 1749 74318 74298 74338 277 537 0.36 81.0 13.8 6.17 2.60 3.97 0.52 11.47 133.9 10.79 11.47 581 10.36 0.13 21.84 6.74 58.0 98.7 0.23 2.51 2.07 1.67 1.59 0.46 1.00 0.92 0.11 0.43 774 127 66 4.9 5.9 1.6 1.4 18.4 111 1753 74462 74442 74482 274 535 0.43 82.1 13.7 6.18 2.26 4.00 0.48 9.99 137.9 11.08 11.91 594 10.24 0.12 21.83 6.86 57.2 99.1 0.35 2.42 2.23 1.55 1.39 0.38 1.25 0.92 0.13 0.40 766 125 65 4.9 7.4 1.2 2.1 19.6 117 1759 74607 74587 74627 274 533 0.40 82.0 13.5 6.31 2.58 3.95 0.47 10.97 136.0 10.81 11.17 592 10.23 0.07 21.49 6.86 56.4 98.5 0.18 2.47 2.51 1.70 1.50 0.42 0.71 0.92 0.17 0.38 772 122 66 5.0 7.0 1.0 1.4 22.0 116 1758 74751 74731 74771 277 533 0.39 81.4 13.7 6.19 2.41 3.93 0.45 11.41 134.0 10.74 11.79 587 10.25 0.10 21.33 6.80 57.5 98.1 0.26 2.36 2.07 1.85 1.57 0.36 0.86 0.91 0.15 0.38 776 127 64 5.2 5.8 1.3 1.2 21.3 117 1759 74896 74876 74916 274 527 0.44 81.3 13.6 5.99 2.44 3.93 0.44 10.85 135.3 10.88 11.33 594 10.27 0.06 20.61 6.55 56.6 97.5 0.26 2.26 2.09 1.63 1.33 0.34 0.71 0.89 0.16 0.41 747 120 61 3.9 5.3 1.3 1.3 18.2 113 1752 75040 75020 75060 277 535 0.41 81.7 13.9 6.12 2.43 3.99 0.52 10.61 134.0 10.65 11.32 590 10.38 0.10 19.87 6.53 57.2 99.1 0.20 2.15 2.07 1.49 1.28 0.24 1.08 0.83 0.12 0.34 725 120 58 3.5 6.0 0.8 1.0 17.4 109 1755 75185 75165 75205 274 529 0.37 81.1 13.9 6.09 2.47 3.97 0.50 10.88 135.5 10.76 11.45 594 10.16 0.08 19.66 6.42 56.4 98.3 0.21 2.11 2.28 1.72 1.24 0.27 0.58 0.86 0.11 0.37 711 116 55 4.1 6.0 1.3 1.1 17.6 110 1756 75331 75311 75351 276 533 0.39 81.3 13.6 6.16 2.62 3.94 0.50 10.50 135.2 10.66 11.43 590 10.42 0.09 20.62 6.43 57.5 98.5 0.20 2.14 2.11 1.51 1.25 0.39 0.72 0.84 0.12 0.33 724 108 64 4.2 8.1 2.1 2.4 15.5 107 1756 75475 75455 75495 279 543 0.42 82.2 13.9 6.47 2.47 3.91 0.48 10.10 137.9 10.99 11.52 597 10.40 0.08 20.80 6.55 57.5 99.3 0.20 2.22 2.21 1.68 1.18 0.39 0.64 0.86 0.10 0.40 703 104 47 3.6 4.5 1.3 1.5 15.7 113 1752 75620 75600 75640 278 540 0.44 82.4 13.8 6.51 2.46 4.09 0.50 11.85 138.1 11.09 11.89 588 10.18 0.07 21.06 6.43 57.2 98.9 0.27 2.30 2.12 1.54 1.08 0.26 0.63 0.88 0.11 0.40 680 84 44 2.7 5.1 1.2 1.3 15.4 109 1754 75766 75746 75786 276 536 0.43 81.6 13.7 6.45 2.45 3.89 0.46 11.39 137.6 10.93 11.95 587 10.10 0.08 20.95 6.74 57.2 99.0 0.21 2.35 1.92 1.58 1.01 0.44 0.00 0.96 0.12 0.39 695 100 43 3.5 4.1 0.9 1.2 15.9 112 1757 75911 75891 75931 277 532 0.37 81.7 13.6 6.06 2.44 3.92 0.46 9.90 135.7 10.43 11.94 585 9.94 0.04 17.42 6.17 57.0 98.6 0.20 1.87 3.53 1.95 1.23 0.31 0.68 0.85 0.12 0.44 637 107 48 3.7 4.6 0.9 0.8 18.8 99 1749 76056 76036 76076 277 535 0.48 82.5 13.7 5.99 2.44 3.91 0.45 9.47 132.4 10.36 11.76 570 9.82 0.04 16.07 6.05 57.0 99.4 0.13 1.69 4.80 2.02 0.74 0.26 0.41 1.01 0.15 0.49 517 73 30 2.0 2.8 0.0 0.0 11.3 87 1742 76203 76183 76223 276 535 0.45 81.8 13.7 6.26 2.24 3.78 0.51 11.16 133.0 10.18 11.32 567 9.79 0.05 15.30 5.68 56.9 98.6 0.00 1.62 5.59 2.08 0.79 0.00 0.37 0.89 0.15 0.56 483 63 26 1.6 2.3 0.0 0.0 9.6 83 1735 76347 76327 76367 274 526 0.45 80.6 13.8 6.36 2.47 4.01 0.50 9.79 132.6 10.21 11.58 567 9.70 0.04 15.16 5.68 55.6 97.2 0.10 1.55 5.57 1.78 0.97 0.21 0.51 0.96 0.13 0.53 485 66 25 1.8 2.6 0.0 0.0 10.3 80 1736 76493 76473 76513 276 527 0.39 81.7 13.6 5.87 2.54 3.91 0.48 8.35 130.9 10.08 11.50 564 9.55 0.05 15.33 5.81 56.3 98.6 0.15 1.58 5.23 1.95 0.75 0.00 0.40 0.92 0.14 0.56 486 62 26 1.3 2.8 0.0 0.0 9.2 82 1737 76641 76621 76661 277 535 0.42 82.9 13.7 6.35 2.28 3.93 0.42 10.25 138.8 10.87 11.10 603 10.26 0.04 21.39 6.86 57.8 99.5 0.14 2.33 2.26 1.50 0.95 0.00 0.69 0.85 0.00 0.34 766 138 60 3.8 0.0 0.4 1.1 19.1 116 1756 76790 76770 76810 273 528 0.43 81.3 13.8 6.20 2.57 3.93 0.48 12.07 135.6 10.80 11.63 592 10.12 0.02 21.25 6.82 57.0 98.5 0.16 2.39 2.00 1.55 1.08 0.21 0.64 0.87 0.15 0.36 771 133 61 3.1 5.0 0.5 1.3 19.6 121 1760 76941 76921 76961 270 513 0.43 81.3 13.3 6.25 2.36 3.90 0.46 9.78 130.3 10.74 11.06 579 9.88 0.04 21.31 6.65 56.8 97.4 0.18 2.32 2.10 1.75 1.06 0.15 0.53 0.88 0.13 0.39 760 135 60 3.2 4.9 0.4 0.9 19.6 116 1760 77090 77070 77110 280 545 0.40 82.7 13.9 6.54 2.39 4.12 0.49 10.71 136.0 10.89 11.21 605 10.44 0.04 21.04 6.73 58.4 99.9 0.22 2.24 2.09 1.53 1.14 0.42 0.00 0.83 0.12 0.32 745 127 57 2.9 4.6 0.0 0.0 17.7 112 1758 77241 77221 77261 280 542 0.47 83.8 13.9 6.68 2.41 4.08 0.50 11.14 137.0 10.96 11.99 606 10.22 0.00 20.85 6.61 58.0 100.1 0.14 2.25 1.92 1.51 1.11 0.45 0.53 0.99 0.17 0.32 731 128 57 3.3 5.0 1.1 1.2 18.3 116 1758 77390 77370 77410 279 538 0.40 82.9 13.8 6.32 2.26 4.00 0.46 10.42 133.8 11.01 11.56 591 10.22 0.04 20.40 6.42 57.7 99.1 0.16 2.18 2.00 1.46 1.06 0.19 0.49 0.75 0.10 0.37 721 126 54 3.4 5.0 0.0 0.0 18.4 112 1756 77541 77521 77561 273 531 0.51 82.2 13.6 6.26 2.52 3.78 0.44 10.39 132.5 10.23 11.16 587 10.22 0.00 16.28 5.96 57.3 98.3 0.15 1.60 1.74 1.26 1.01 0.22 0.54 0.78 0.11 0.29 641 138 51 3.4 5.8 0.7 1.1 20.6 99 1746 77694 77674 77714 269 527 0.39 81.1 13.7 6.14 2.28 3.62 0.45 10.39 132.9 9.89 11.02 580 10.00 0.00 14.85 5.77 56.8 96.5 0.12 1.41 1.82 1.29 1.04 0.00 0.00 0.85 0.00 0.24 606 9999 49 3.2 4.7 0.8 1.5 20.1 94 1731 77844 77824 77864 270 524 0.39 80.3 13.6 6.05 2.18 3.80 0.48 9.50 135.1 10.08 11.10 589 9.91 0.06 18.06 5.95 56.4 96.9 0.14 1.77 1.87 1.45 1.12 0.25 0.00 0.83 0.10 0.32 612 65 42 3.7 3.9 0.7 1.0 15.1 98 1742 77995 77975 78015 277 538 0.39 82.7 13.7 6.39 2.32 3.88 0.45 9.16 134.1 9.96 10.73 598 10.00 0.00 12.71 5.07 56.8 98.4 0.00 1.04 1.42 0.76 0.46 0.00 0.00 0.70 0.09 0.16 473 60 23 1.3 1.8 0.0 0.0 6.5 77 1739 78153 78133 78173 273 527 0.38 81.3 13.6 6.15 2.56 3.84 0.43 9.23 129.9 9.87 10.63 593 10.16 0.00 12.64 4.95 56.7 97.6 0.00 1.01 1.26 0.78 0.37 0.00 0.00 0.72 0.10 0.17 555 78 26 1.1 1.3 0.0 0.0 6.3 74 1745 78310 78290 78330 274 529 0.42 81.0 13.6 6.46 2.43 3.71 0.44 9.55 132.7 9.65 11.08 596 9.66 0.02 11.97 4.79 56.2 98.2 0.11 0.84 1.11 0.56 0.35 0.00 0.00 0.70 0.00 0.15 411 39 17 4.8 1.4 0.0 0.0 4.8 54 1729 78463 78443 78483 276 537 0.43 81.6 13.9 6.35 2.46 3.83 0.46 9.34 132.5 9.85 10.87 603 9.81 0.00 12.13 4.88 57.1 98.9 0.10 0.90 1.35 0.81 0.48 0.00 0.00 0.76 0.08 0.16 466 54 20 0.8 1.8 0.0 0.0 5.3 60 1739 78619 78599 78639 278 537 0.38 82.9 13.9 6.38 2.72 3.84 0.48 10.56 132.0 9.77 11.42 590 9.89 0.00 12.09 5.15 57.5 99.5 0.13 0.87 1.25 0.65 0.40 0.00 0.00 0.79 0.08 0.14 455 9999 18 1.7 1.4 0.0 1.0 4.8 59 1733 78774 78754 78794 274 532 0.42 80.9 13.7 6.22 2.31 3.79 0.44 9.67 132.7 9.80 10.78 603 9.87 0.00 11.92 4.67 56.3 97.2 0.11 0.86 1.35 0.85 0.28 0.00 0.00 0.75 0.09 0.17 421 45 17 0.8 1.8 0.0 0.0 4.5 58 1734 78929 78909 78949 274 531 0.44 81.6 13.6 6.37 2.51 3.72 0.48 9.70 131.5 9.73 10.84 585 9.67 0.00 11.78 4.73 56.7 98.8 0.00 0.86 1.21 0.90 0.38 0.00 0.00 0.78 0.05 0.15 411 44 16 1.3 1.5 0.0 0.0 4.9 56 1736 79083 79063 79103 274 535 0.44 80.9 13.8 6.36 2.51 3.66 0.44 10.33 127.3 9.65 10.74 580 10.02 0.03 11.89 4.81 57.8 98.2 0.00 0.83 1.19 0.69 0.30 0.00 0.00 0.68 0.11 0.15 420 51 17 0.9 1.0 0.0 0.0 5.0 60 1730 79239 79219 79259 274 535 0.43 81.1 13.7 6.22 2.35 3.76 0.45 9.66 133.3 9.71 10.55 600 9.78 0.00 12.12 4.70 56.5 96.8 0.12 0.81 1.29 0.88 0.47 0.00 0.00 0.67 0.07 0.14 425 9999 18 1.6 2.1 0.0 0.0 4.9 62 1732 79397 79377 79417 274 529 0.38 81.3 13.6 6.39 2.58 3.64 0.54 9.26 130.0 9.52 10.97 573 9.64 0.00 11.42 4.68 57.0 97.6 0.13 0.71 1.07 0.62 0.00 0.00 0.00 0.69 0.07 0.14 370 35 13 1.1 1.3 0.0 0.8 4.0 49 1732 79562 79542 79582 275 533 0.44 81.9 13.7 6.20 2.26 3.72 0.46 7.96 130.1 9.72 10.58 572 9.86 0.04 11.30 4.65 57.5 97.8 0.14 0.66 1.04 0.48 0.17 0.00 0.00 0.77 0.12 0.14 371 36 12 1.0 0.8 0.0 0.0 4.7 52 1734 79725 79705 79745 269 521 0.43 80.1 13.6 6.29 2.58 3.69 0.41 9.00 128.4 9.59 9.98 569 9.84 0.00 11.29 4.53 56.6 96.9 0.14 0.61 0.98 0.48 0.23 0.00 0.00 0.67 0.14 0.16 361 9999 12 0.9 1.2 0.0 0.0 4.6 50 1734 79886 79866 79906 274 537 0.41 81.5 13.6 6.62 2.04 3.63 0.47 9.59 129.8 9.49 10.68 568 9.79 0.03 11.09 4.63 57.6 96.4 0.12 0.71 0.94 0.69 0.26 0.00 0.00 0.71 0.10 0.16 355 36 11 1.6 1.9 0.0 0.9 5.9 51 1722