37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 10 20 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 30390 30240 30540 164 99999 28 99999 88888 27 30693 30541 30845 358 99999 31 99999 88888 26 31023 30846 31200 72 99999 22 99999 88888 22 31408 31201 31615 86 99999 24 99999 88888 22 31760 31616 31904 52 99999 17 99999 88888 24 32082 31905 32259 88 99999 30 99999 88888 23 32440 32260 32620 57 99999 23 99999 88888 24 32800 32621 32978 57 99999 24 99999 88888 22 33140 32979 33300 30 99999 27 99999 88888 28 33485 33301 33669 30 99999 31 99999 88888 23 35156 35000 35312 177 99999 18 99999 88888 26 35461 35313 35609 119 99999 25 99999 88888 27 35769 35610 35928 125 99999 30 99999 88888 27 36092 35929 36255 87 99999 24 99999 32 99999 36418 36256 36579 82 99999 11 99999 88888 25 36749 36580 36917 58 99999 19 99999 88888 24 37084 36918 37249 46 99999 16 99999 88888 23 37429 37250 37608 30 99999 11 99999 88888 22 37805 37609 38000 41 99999 19 99999 88888 24 38231 38001 38460 28 99999 16 99999 88888 25 38685 38461 38908 36 99999 19 99999 88888 25 39135 38909 39360 38 99999 18 99999 31 99999 39575 39361 39790 43 99999 14 99999 88888 25 40061 39791 40330 39 99999 8 99999 88888 22 40604 40331 40876 30 99999 11 99999 88888 21 41098 40877 41319 28 99999 6 99999 88888 21 41522 41320 41723 28 99999 14 99999 88888 20 41937 41724 42150 38 99999 7 99999 88888 19 42373 42151 42595 30 99999 8 99999 88888 17 42783 42596 42969 36 99999 12 99999 88888 19 43168 42970 43365 40 99999 8 99999 88888 23 43581 43366 43796 43 99999 14 99999 30 99999 44056 43797 44314 46 99999 11 99999 88888 20 44570 44315 44825 46 99999 11 99999 88888 20 46173 45915 46431 100 99999 18 99999 88888 20 46688 46432 46944 77 99999 15 99999 88888 20 47197 46945 47448 100 99999 7 99999 88888 21 47633 47449 47816 143 99999 11 99999 88888 26 48020 47817 48223 174 99999 19 99999 88888 26 48415 48224 48605 114 99999 15 99999 88888 25 48793 48606 48979 127 99999 17 99999 88888 26 49150 48980 49320 205 99999 15 99999 88888 28 49448 49321 49575 657 99999 16 99999 88888 41 49697 49576 49818 788 99999 22 99999 88888 46 49954 49819 50090 838 99999 18 99999 88888 40 50226 50091 50362 739 99999 11 99999 88888 41 50499 50363 50635 820 99999 26 99999 88888 41 50771 50636 50905 381 99999 25 99999 88888 41 51042 50906 51177 352 99999 15 99999 88888 40 51328 51178 51478 267 99999 17 99999 88888 37 51614 51479 51748 431 99999 22 99999 88888 42 51867 51749 51984 238 99999 15 99999 88888 41 52154 51985 52323 130 99999 15 99999 88888 26 52549 52324 52775 88 99999 13 99999 88888 21 52983 52776 53190 82 99999 10 99999 88888 19 53399 53191 53608 81 99999 13 99999 88888 19 53835 53609 54060 82 99999 23 99999 32 99999 54211 54061 54361 81 99999 17 99999 16 99999 54512 54362 54662 83 99999 15 99999 14 99999