37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 10 25 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 31184 30960 31408 50 99999 50 99999 34 99999 31622 31409 31834 39 99999 59 99999 17 99999 32067 31835 32300 50 99999 33 99999 88888 18 32538 32361 32715 61 99999 83 99999 46 99999 33838 33672 34004 261 99999 48 99999 88888 25 34138 34005 34270 221 99999 75 99999 88888 32 34446 34271 34620 156 99999 29 99999 88888 27 34754 34621 34886 462 99999 13 99999 88888 41 35096 34887 35305 402 99999 53 99999 39 99999 35479 35306 35651 159 99999 71 99999 88888 32 35822 35652 35992 271 99999 43 99999 88888 33 36093 35993 36193 320 99999 102 99999 88888 56 36302 36194 36410 510 99999 49 99999 88888 56 36516 36411 36620 487 99999 133 99999 88888 56 36726 36621 36830 551 99999 76 99999 88888 56 36930 36831 37028 510 99999 93 99999 88888 56 37135 37029 37240 643 99999 49 99999 88888 56 37341 37241 37440 579 99999 102 99999 88 99999 37546 37441 37650 647 99999 59 99999 88888 55 37781 37651 37910 683 99999 50 99999 88888 56 37986 37911 38060 814 99999 48 99999 88888 56 38161 38061 38260 715 99999 99 99999 88888 56 38366 38261 38470 511 99999 51 99999 88888 48 38571 38471 38670 595 99999 88888 40 88888 56 38777 38671 38882 905 99999 88888 46 88888 64 39024 38883 39165 653 99999 65 99999 63 99999 39277 39166 39388 555 99999 88888 37 88888 52 39496 39389 39603 714 99999 40 99999 88888 52 39709 39604 39814 821 99999 53 99999 88888 56 39916 39815 40017 694 99999 34 99999 88888 56 40123 40018 40227 942 99999 45 99999 88888 57 40317 40228 40405 945 99999 58 99999 88888 57 40492 40406 40578 760 99999 48 99999 88888 55 40661 40579 40742 794 99999 24 99999 88888 57 40858 40743 40973 869 99999 35 99999 88888 42 41056 40974 41138 793 99999 56 99999 88888 56 41226 41139 41313 1049 99999 34 99999 88888 57 41397 41314 41480 885 99999 36 99999 88888 56 41572 41481 41663 912 99999 38 99999 88888 56 41748 41664 41832 832 99999 41 99999 88888 57 41920 41833 42007 919 99999 88888 40 88888 56 42091 42008 42174 838 99999 88888 40 88888 56 42293 42175 42411 987 99999 88888 40 88888 57 42477 42412 42541 880 99999 88888 35 88888 50 42629 42542 42715 1153 99999 88888 41 88888 58 42811 42716 42905 585 99999 88888 30 88888 42 42995 42906 43083 335 99999 88888 29 88888 41 43174 43084 43263 373 99999 88888 30 88888 42 43349 43264 43433 540 99999 88888 30 88888 43 43565 43434 43695 431 99999 88888 20 88888 27 43781 43696 43866 341 99999 88888 30 88888 43 44011 43867 44155 211 99999 88888 17 88888 24 44285 44156 44414 205 99999 46 99999 35 99999 44544 44415 44673 223 99999 47 99999 85 99999 44802 44674 44930 116 99999 28 99999 62 99999 45061 44931 45190 105 99999 77 99999 68 99999 45320 45191 45449 156 99999 92 99999 116 99999 45569 45450 45688 194 99999 63 99999 70 99999 45860 45689 46030 116 99999 39 99999 52 99999 46183 46031 46335 71 99999 28 99999 88888 21 46505 46336 46674 90 99999 35 99999 33 99999 46840 46675 47005 38 99999 12 99999 21 99999 48211 48046 48375 91 99999 120 99999 130 99999 48532 48376 48688 70 99999 13 99999 107 99999 48846 48689 49002 86 99999 90 99999 129 99999 49153 49003 49302 84 99999 75 99999 135 99999 49450 49303 49596 76 99999 64 99999 183 99999 49755 49597 49912 84 99999 61 99999 122 99999 50091 49913 50268 109 99999 49 99999 59 99999 50437 50269 50605 110 99999 48 99999 71 99999 50788 50606 50970 75 99999 30 99999 20 99999 51096 50971 51221 85 99999 38 99999 88888 26 51363 51222 51504 95 99999 30 99999 88888 28 51632 51505 51758 52 99999 32 99999 88888 27 51910 51759 52060 40 99999 25 99999 88888 27 52236 52061 52410 93 99999 29 99999 88888 27 52549 52411 52686 193 99999 40 99999 88888 38 52806 52687 52925 132 99999 26 99999 88888 42 53110 52926 53295 191 99999 28 99999 88888 26 53474 53296 53652 68 99999 23 99999 88888 27 53824 53653 53995 76 99999 25 99999 88888 27 54193 53996 54390 77 99999 35 99999 88888 27 54578 54391 54765 98 99999 29 99999 88888 27 54950 54766 55134 100 99999 27 99999 88888 27