37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 10 29 1998 03 02 0 Midpoint of sampling interval in elapsed seconds from 00 Universal Time on takeoff date. 6 1.0 1.0 1.0 1.0 1.0 1.0 99999 99999 99999 99999 99999 99999 Nitric Acid (HNO3) Mixing Ratio (pptv) Nitric Acid Limit of Detection (pptv) Formic Acid (HCOOH) Mixing Ratio (pptv) Formic Acid Limit of Detection (pptv) Acetic Acid (CH3COOH) Mixing Ratio (pptv) Acetic Acid Limit of Detection (pptv) 2 1.0 1.0 99999 99999 Start Time (seconds) Stop Time (seconds) 0 12 Species mixing ratios are reported in parts per trillion by volume (pptv). Species mixing ratio below stated limit of detection is indicated by 88888. Start and stop times (in Universal Time) for individual samples are reported in seconds of the day (1 day = 86400 sec.). Average uncertainties in mixing ratios are as follows: HNO3 (< 30 pptv +/- 35%; 30 - 100 pptv +/- 25%; >100 pptv +/- 20%); HCOOH (<100 pptv +/- 30% ;>100 pptv +/- 20%; CH3COOH (<100 pptv +/- 35%, >100 pptv +/- 20%). Absolute accuracy of pptv values is unknown, but we believe it to be +/- 10 - 20%. Direct questions about these data to R. Talbot or J. Dibb at: Institute for the Study of Earth, Oceans and Space, Morse Hall, University of New Hampshire, Durham, NH 03824. E-mail: robert.talbot@unh.edu or jack.dibb@unh.edu 41385 41250 41520 485 99999 67 99999 88888 41 41626 41521 41730 486 99999 76 99999 56 99999 41828 41731 41924 640 99999 82 99999 88888 40 42024 41925 42123 669 99999 58 99999 88888 40 42255 42124 42385 832 99999 63 99999 88888 41 42472 42386 42558 715 99999 65 99999 88888 41 42675 42559 42791 692 99999 35 99999 88888 40 42897 42792 43001 694 99999 45 99999 88888 40 43102 43002 43202 797 99999 50 99999 88888 40 43318 43203 43433 639 99999 88888 29 88888 41 43544 43434 43654 590 99999 19 99999 88888 41 43761 43655 43867 445 99999 38 99999 88888 41 43952 43868 44035 393 99999 27 99999 88888 54 44115 44036 44194 181 99999 42 99999 88888 54 44278 44195 44360 191 99999 45 99999 88888 54 44466 44361 44570 129 99999 24 99999 88888 41 44697 44571 44822 123 99999 40 99999 88888 37 44959 44823 45095 84 99999 17 99999 88888 31 45218 45096 45339 86 99999 18 99999 88888 33 45477 45340 45615 86 99999 28 99999 68 99999 45757 45616 45897 55 99999 22 99999 88888 27 46043 45898 46187 81 99999 60 99999 88888 27 46376 46188 46564 80 99999 36 99999 32 99999 46700 46565 46835 50 99999 88888 19 12 99999 46975 46836 47114 50 99999 88888 19 15 99999 47250 47115 47384 57 99999 88888 19 19 99999 47524 47385 47662 50 99999 88888 19 15 99999 47797 47663 47930 52 99999 88888 19 17 99999 48089 47931 48246 36 99999 88888 19 16 99999 48419 48247 48590 62 99999 88888 19 38 99999 48743 48591 48895 55 99999 88888 23 21 99999 49911 49725 50097 127 99999 19 99999 88888 27 50274 50098 50450 113 99999 18 99999 88888 27 50611 50451 50771 94 99999 13 99999 88888 27 50896 50772 51020 131 99999 26 99999 88888 32 51199 51021 51378 89 99999 17 99999 88888 23 51519 51379 51659 121 99999 20 99999 88888 27 51813 51660 51965 106 99999 88888 17 88888 27 52125 51966 52283 121 99999 20 99999 88888 27 52438 52284 52591 89 99999 17 99999 88888 27 52736 52592 52880 105 99999 22 99999 23 99999 53031 52881 53181 101 99999 20 99999 88888 30 53350 53182 53518 91 99999 13 99999 88888 23 53662 53519 53806 121 99999 23 99999 77 99999 53944 53807 54080 70 99999 88888 18 88888 25 54235 54081 54390 74 99999 31 99999 52 99999 54520 54391 54649 73 99999 21 99999 88888 25 54794 54650 54938 72 99999 15 99999 56 99999 55074 54939 55208 74 99999 19 99999 88888 25 55350 55209 55490 72 99999 21 99999 31 99999 55623 55491 55756 66 99999 88888 16 88888 22 55889 55757 56020 57 99999 12 99999 41 99999 56164 56021 56308 44 99999 17 99999 18 99999 56463 56309 56616 44 99999 12 99999 64 99999 56760 56617 56904 196 99999 88888 15 88888 20 57940 57825 58055 85 99999 24 99999 88888 25 58186 58056 58315 83 99999 43 99999 60 99999 58433 58316 58549 43 99999 21 99999 88888 25 58671 58550 58792 58 99999 29 99999 82 99999 58935 58793 59077 37 99999 24 99999 38 99999 59226 59078 59373 40 99999 35 99999 106 99999 59515 59374 59655 133 99999 21 99999 55 99999 59813 59656 59969 38 99999 27 99999 97 99999 60187 59970 60405 21 99999 13 99999 88888 20 60698 60406 60990 62 99999 19 99999 48 99999 61202 60991 61414 161 99999 17 99999 88888 27 61617 61415 61819 119 99999 15 99999 70 99999 62019 61820 62218 95 99999 20 99999 88888 29 62371 62219 62523 191 99999 13 99999 99999 99999 62633 62524 62741 302 99999 23 99999 88888 54 62867 62742 62992 470 99999 22 99999 99999 99999 63104 62993 63214 461 99999 88888 24 88888 51 63341 63215 63467 588 99999 60 99999 99999 99999 63574 63468 63680 498 99999 21 99999 88888 54 63782 63681 63883 624 99999 27 99999 99999 99999 64013 63884 64142 526 99999 88888 29 88888 40 64258 64143 64372 611 99999 137 99999 99999 99999 64485 64373 64597 529 99999 19 99999 88888 47 64704 64598 64809 657 99999 30 99999 99999 99999 64908 64810 65005 546 99999 88888 39 88888 54 65108 65006 65209 710 99999 27 99999 82 99999 65315 65210 65419 564 99999 88888 23 88888 51 65523 65420 65626 652 99999 16 99999 79 99999 65753 65627 65879 549 99999 14 99999 88888 43 66018 65880 66156 731 99999 26 99999 31 99999