37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 11 09 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 59534 59340 59728 136 99999 44 99999 88888 19 59878 59729 60026 51 99999 54 99999 88888 26 60210 60027 60393 75 99999 37 99999 88888 27 60534 60394 60673 60 99999 89 99999 88888 26 60844 60674 61014 60 99999 46 99999 88888 26 61172 61015 61329 50 99999 33 99999 88888 27 61477 61330 61624 134 99999 40 99999 88888 27 61757 61625 61889 184 99999 41 99999 88888 26 62019 61890 62149 209 99999 47 99999 76 99999 62278 62150 62406 322 99999 43 99999 65 99999 63843 63680 64006 200 99999 88888 10 88888 27 64150 64007 64294 137 99999 13 99999 88888 20 64468 64295 64641 78 99999 16 99999 88888 19 64815 64642 64987 66 99999 19 99999 88888 19 65119 64988 65249 256 99999 23 99999 88888 27 65393 65250 65535 144 99999 20 99999 88888 27 65747 65536 65958 75 99999 16 99999 88888 19 66172 65959 66385 34 99999 14 99999 88888 19 66541 66386 66696 83 99999 17 99999 88888 27 66853 66709 66996 464 99999 18 99999 88888 30 67158 66997 67319 294 99999 16 99999 88888 27 67487 67320 67653 242 99999 29 99999 88888 27 67822 67654 67989 236 99999 19 99999 88888 27 68125 67990 68260 367 99999 18 99999 88888 34 68401 68261 68541 361 99999 18 99999 88888 33 68677 68542 68811 289 99999 22 99999 88888 33 68923 68812 69033 202 99999 19 99999 88888 41 69141 69034 69248 163 99999 27 99999 88888 41 69418 69249 69587 132 99999 20 99999 88888 27 69766 69588 69943 167 99999 23 99999 88888 26 70095 69944 70246 219 99999 23 99999 88888 34 70399 70247 70550 206 99999 23 99999 88888 32 70703 70551 70854 274 99999 22 99999 88888 34 70992 70855 71129 239 99999 21 99999 88888 37 71253 71130 71376 283 99999 21 99999 88888 41 71504 71377 71630 252 99999 23 99999 88888 41 71756 71631 71881 189 99999 24 99999 88888 40 72044 71882 72205 122 99999 30 99999 88888 36 72338 72206 72469 176 99999 22 99999 88888 42 72605 72470 72739 86 99999 20 99999 88888 41 72919 72740 73097 151 99999 18 99999 88888 31 73309 73098 73520 170 99999 20 99999 88888 26 73733 73521 73944 157 99999 13 99999 88888 28 74128 73945 74310 150 99999 13 99999 88888 26 75560 75379 75740 174 99999 88888 10 88888 26 75893 75741 76044 183 99999 88888 10 88888 34 76208 76045 76370 225 99999 15 99999 88888 29 76535 76371 76699 259 99999 25 99999 88888 26 76825 76700 76950 290 99999 43 99999 88888 41 77093 76951 77235 116 99999 30 99999 88888 27 77398 77236 77560 115 99999 55 99999 88888 26 77716 77561 77870 150 99999 31 99999 88888 27 78036 77871 78200 118 99999 21 99999 88888 27 78358 78201 78515 96 99999 25 99999 88888 27 78657 78516 78797 107 99999 14 99999 88888 25 78933 78798 79067 96 99999 14 99999 88888 27 79274 79068 79480 66 99999 12 99999 88888 26 79561 79481 79640 84 99999 14 99999 88888 27 79777 79641 79913 72 99999 13 99999 88888 28