74 1001 ;header lines file format index ATLAS, ELLIOT NCAR MIXING RATIOS FROM WHOLE AIR SAMPLER ACCENT 1 1 ;vol total vol 1999 09 08 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) The UT times are calculated from manifold and canister volumes, pressure changes, and estimated flow rates and corrected for manifold delay 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 56483 56471 56500 286 543 0.40 999.9 13.8 6.58 2.57 4.02 0.46 12.31 139.2 11.41 11.98 578 10.12 0.04 17.14 6.11 55.0 99.3 99.99 7.82 2.01 0.75 0.65 0.13 0.25 0.85 0.13 0.34 475 48 41 14.7 4.7 0.0 1.0 999.9 62 1761 57336 57322 57354 286 545 0.41 85.6 13.9 6.17 2.64 4.09 0.49 12.66 140.2 11.45 11.84 578 9.79 0.05 15.61 5.56 55.0 99.2 99.99 6.84 1.99 0.61 0.68 0.00 0.00 0.80 0.09 0.34 494 33 43 10.4 4.8 0.0 1.4 999.9 50 1742 58190 58176 58208 281 535 0.43 85.5 13.7 6.04 2.10 4.03 0.43 11.36 137.2 10.83 11.29 578 9.61 0.04 16.32 5.27 54.9 97.5 99.99 5.54 1.21 0.37 0.34 0.00 0.00 0.69 0.05 0.13 334 38 14 8.9 2.1 0.0 0.7 999.9 48 1747 59045 59030 59063 281 540 0.44 84.8 13.8 6.41 2.56 4.04 0.44 11.06 137.0 10.89 11.37 580 9.79 0.04 16.50 5.54 54.7 97.5 99.99 5.21 1.07 0.48 0.31 0.09 0.00 0.70 0.06 0.13 346 41 14 8.4 1.6 0.0 0.0 999.9 53 1749 59900 59885 59919 279 534 0.40 84.2 13.6 6.37 2.42 4.02 0.46 10.94 136.2 10.93 11.27 581 9.81 0.03 17.49 6.21 54.5 97.7 99.99 4.95 1.17 0.45 0.29 0.00 0.00 0.73 0.09 0.15 405 52 17 8.4 1.7 0.0 0.8 999.9 59 1769 60756 60740 60774 277 532 0.40 84.4 13.7 6.63 2.48 3.93 0.44 11.28 137.2 10.81 11.63 576 9.54 0.04 17.26 5.86 53.9 96.7 99.99 3.79 1.10 0.48 0.32 0.00 0.00 0.66 0.08 0.10 386 49 15 7.9 1.9 0.0 0.7 999.9 50 1769 61712 61705 61718 283 536 0.44 83.7 13.7 6.26 2.41 4.21 0.47 12.35 139.8 11.85 11.93 562 10.34 0.07 24.20 7.73 53.5 99.8 99.99 4.68 2.51 1.49 1.60 0.32 1.01 0.81 0.12 0.33 513 118 61 9.5 8.5 1.3 1.5 999.9 94 1785 61847 61840 61854 284 540 0.41 84.1 13.7 6.56 2.35 4.14 0.47 12.46 140.9 11.73 11.82 564 10.02 0.05 21.21 7.05 53.9 99.2 99.99 4.19 2.12 1.03 1.07 0.20 0.72 0.86 0.13 0.30 448 78 40 8.0 5.6 0.4 0.7 999.9 78 1765 61984 61977 61993 281 526 0.44 83.3 13.4 6.03 2.07 4.18 0.43 11.63 136.9 11.45 11.44 568 9.77 0.04 20.38 7.07 54.0 98.5 99.99 3.80 2.10 0.97 0.83 0.24 0.39 0.84 0.09 0.34 455 85 33 7.2 3.3 0.0 0.0 999.9 75 1787 62124 62115 62133 280 528 0.43 83.8 13.4 6.38 2.34 4.15 0.43 11.76 137.7 11.29 11.73 582 10.07 0.05 21.09 7.32 53.1 98.2 99.99 3.74 2.04 0.97 0.65 0.00 0.22 0.83 0.09 0.34 466 91 33 7.7 3.2 0.0 0.0 999.9 76 1787 62264 62255 62274 282 539 0.41 84.9 13.7 6.46 2.43 4.21 0.46 12.06 140.5 11.38 11.76 585 10.15 0.06 20.43 7.23 53.6 99.1 99.99 3.50 1.94 0.76 0.62 0.28 0.39 0.84 0.14 0.25 479 82 33 7.2 3.0 0.0 0.0 999.9 78 1795 62405 62396 62416 282 538 0.45 84.0 13.7 6.53 2.45 4.15 0.46 12.01 139.1 11.35 11.79 577 9.98 0.04 19.93 6.91 53.2 98.1 99.99 3.37 1.76 0.70 0.70 0.00 0.20 0.78 0.12 0.27 461 78 32 7.0 2.8 0.0 0.0 999.9 73 1777 62548 62539 62559 283 538 0.41 84.7 13.7 6.42 2.45 4.16 0.47 12.35 142.2 12.19 12.16 583 10.07 0.04 99.99 7.20 53.4 99.2 99.99 4.25 2.17 0.86 1.02 0.00 0.55 0.80 0.09 0.27 442 95 43 9.5 7.9 1.3 1.1 999.9 78 1784 62691 62682 62703 286 545 0.42 84.9 13.8 6.54 2.64 4.28 0.46 11.83 141.1 11.49 11.91 601 10.18 0.04 21.96 7.80 54.3 99.8 99.99 3.55 2.07 0.97 0.80 0.00 0.29 0.90 0.12 0.33 500 110 40 8.2 4.6 0.0 0.0 999.9 81 1793 62836 62825 62848 282 537 0.44 84.5 13.6 6.29 2.44 4.22 0.48 11.72 139.8 11.46 11.88 595 10.03 0.05 21.76 7.57 53.7 99.2 99.99 3.66 2.00 0.79 0.66 0.17 0.00 0.86 0.12 0.27 495 98 37 7.5 3.4 0.0 0.5 999.9 80 1790 62981 62970 62994 279 528 0.42 83.4 13.5 6.36 2.39 4.13 0.46 11.32 136.3 11.00 11.52 573 9.83 0.05 18.53 6.41 53.3 97.5 99.99 3.42 1.52 0.65 0.38 0.00 0.00 0.77 0.10 0.22 427 63 23 8.3 2.3 0.0 0.8 999.9 69 1773 63129 63115 63143 257 521 0.43 999.9 13.4 6.31 2.06 3.96 0.45 10.71 133.6 10.64 11.08 562 9.57 0.04 16.41 5.80 53.6 96.5 99.99 3.15 1.00 0.39 0.36 0.00 0.00 0.71 0.06 0.13 377 48 16 7.5 1.3 0.0 0.0 999.9 54 1763 63798 63784 63816 272 528 0.41 84.5 13.6 6.35 2.34 3.95 0.47 12.36 137.5 11.46 11.62 560 10.01 0.04 15.73 5.45 53.0 97.5 99.99 2.98 1.68 0.58 0.76 0.00 0.00 0.81 0.10 0.22 503 33 47 8.6 2.4 0.0 0.0 999.9 56 1753 64473 64457 64490 273 537 0.42 85.3 13.6 6.49 2.47 4.03 0.48 12.39 140.7 11.50 11.92 568 10.00 0.03 15.92 5.66 54.1 98.3 99.99 3.48 1.76 0.70 0.79 0.10 0.23 0.86 0.12 0.36 530 39 49 8.6 3.4 0.8 0.7 999.9 60 1759 65146 65132 65164 283 534 0.38 85.0 13.7 6.38 2.26 4.12 0.47 12.01 140.8 11.70 11.91 566 10.58 0.05 16.89 6.15 54.0 99.1 99.99 3.84 1.64 0.64 0.84 0.00 0.27 0.89 0.15 0.63 537 50 58 8.7 4.9 0.0 1.2 999.9 64 1763