74 1001 ;header lines file format index ATLAS, ELLIOT NCAR MIXING RATIOS FROM WHOLE AIR SAMPLER ACCENT 1 1 ;vol total vol 1999 09 15 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 56733 56722 56755 279 531 0.41 84.1 13.7 6.19 2.63 3.94 0.49 11.30 136.9 11.00 11.72 571 9.70 0.03 16.27 5.53 54.5 98.5 99.99 5.83 2.10 0.56 0.53 0.00 0.25 0.71 0.07 0.14 370 33 22 6.5 3.4 0.0 1.0 999.9 53 1742 57372 57356 57394 272 540 0.43 83.9 13.9 6.24 2.53 4.01 0.47 11.14 138.0 10.89 11.40 579 9.73 0.03 15.66 5.39 54.2 98.5 99.99 4.38 1.64 0.47 0.47 0.00 0.00 0.67 0.08 0.11 339 28 15 4.6 1.3 0.0 0.0 999.9 49 1748 58013 57996 58035 279 532 0.43 83.4 13.6 6.39 2.51 3.98 0.43 10.99 136.8 10.91 11.38 570 9.66 0.03 15.68 5.26 53.4 97.4 99.99 3.28 1.54 0.42 0.35 0.00 0.14 0.70 0.06 0.14 357 28 18 5.3 1.6 0.0 0.8 999.9 48 1746 58654 58637 58678 278 541 0.41 84.3 13.8 6.39 2.51 4.11 0.46 11.61 138.8 11.07 11.45 578 9.80 0.03 15.47 5.22 53.9 98.1 99.99 2.58 1.25 0.41 0.31 0.11 0.00 0.63 0.07 0.08 379 28 20 6.5 1.5 0.0 0.0 999.9 49 1750 59299 59279 59325 276 533 0.40 83.7 13.6 6.21 2.50 3.87 0.42 11.13 135.4 10.64 11.42 568 9.58 0.05 14.59 4.92 53.3 95.8 99.99 2.01 0.99 0.30 0.28 0.00 0.00 0.58 0.05 0.06 301 25 13 6.6 1.6 0.0 0.4 999.9 44 1733 59946 59927 59970 278 532 0.44 84.0 13.7 6.22 2.53 3.93 0.44 11.26 137.6 10.91 11.28 571 9.71 0.01 15.74 5.15 53.3 96.8 0.17 1.77 1.02 0.35 0.28 0.00 0.00 0.64 0.07 0.12 367 31 18 5.9 1.1 0.0 0.0 999.9 48 1748 60591 60572 60616 270 537 0.42 83.7 13.7 6.09 2.37 3.98 0.46 10.93 137.1 10.72 11.37 574 9.67 0.03 15.04 5.27 53.6 96.7 0.17 1.45 1.03 0.35 0.32 0.00 0.00 0.72 0.08 0.15 326 27 14 6.6 1.1 0.0 0.0 999.9 47 1755 61241 61214 61275 261 515 0.38 999.9 13.5 6.21 2.34 3.58 0.37 9.31 130.9 9.53 10.45 532 8.62 0.03 11.21 3.79 51.3 90.0 0.15 1.06 0.51 0.14 0.08 0.00 0.00 0.44 0.00 0.00 134 13 5 9.0 1.6 0.0 0.5 999.9 36 1694 61860 61830 61896 258 510 0.41 999.9 13.4 6.11 2.37 3.43 0.38 8.37 129.8 9.29 10.54 524 8.59 0.02 10.68 3.45 51.2 88.9 0.15 1.12 0.50 0.20 0.13 0.00 0.00 0.44 0.00 0.00 101 10 4 8.8 1.8 0.0 0.6 999.9 34 1687 62020 61986 62060 256 508 0.39 999.9 13.5 6.39 2.34 3.39 0.39 9.12 129.0 9.19 10.37 516 8.14 0.04 10.45 3.52 50.8 88.0 0.12 0.72 0.42 0.00 0.11 0.00 0.00 0.44 0.00 0.00 93 12 4 9.3 2.1 0.0 0.0 999.9 35 1679 62184 62150 62229 255 504 0.38 999.9 13.4 6.03 2.28 3.41 0.38 8.77 128.3 9.04 10.19 515 8.36 0.02 9.58 3.04 50.4 87.3 0.11 0.89 0.50 0.17 0.13 0.00 0.00 0.33 0.00 0.00 82 8 4 6.7 1.9 0.0 0.0 999.9 35 1681 62353 62319 62395 255 504 0.39 999.9 13.4 6.09 2.39 3.41 0.39 8.50 128.3 9.14 10.32 515 8.38 0.02 9.93 3.29 51.1 88.0 0.12 0.79 0.50 0.21 0.00 0.00 0.00 0.40 0.00 0.00 81 9 4 8.4 1.8 0.0 0.9 999.9 34 1681 62519 62485 62561 257 508 0.40 999.9 13.2 6.35 2.33 3.34 0.38 8.68 128.4 9.08 10.38 522 8.61 0.02 9.95 3.01 51.2 88.3 0.09 0.78 0.43 0.17 0.09 0.00 0.00 0.40 0.00 0.00 83 7 4 8.3 1.8 0.0 1.0 999.9 33 1681 62684 62651 62722 258 513 0.39 999.9 13.5 6.22 2.27 3.49 0.38 9.01 129.9 9.28 10.46 528 8.42 0.03 9.81 3.17 51.0 89.2 0.11 0.85 0.51 0.20 0.00 0.00 0.00 0.38 0.00 0.00 90 10 3 7.9 1.4 0.0 0.0 999.9 34 1689 62846 62812 62886 256 520 0.39 999.9 13.6 6.21 2.35 3.34 0.38 9.12 130.3 9.62 10.66 533 8.46 0.04 10.55 3.75 51.7 89.3 0.11 0.73 0.55 0.36 0.28 0.00 0.00 0.52 0.00 0.00 88 9 4 9.1 1.4 0.0 1.0 999.9 35 1685