37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 11 05 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 49980 49890 50069 125 99999 59 99999 88888 33 50156 50070 50242 94 99999 76 99999 88888 33 50414 50303 50524 95 99999 121 99999 88888 20 50664 50525 50803 90 99999 56 99999 88888 20 50939 50804 51074 104 99999 127 99999 88888 20 51205 51075 51335 339 99999 91 99999 88888 20 51455 51336 51574 783 99999 408 99999 88888 20 51694 51575 51812 542 99999 188 99999 69 99999 51934 51813 52056 361 99999 206 99999 65 99999 52176 52057 52294 259 99999 155 99999 88888 21 52415 52295 52535 139 99999 112 99999 88888 20 52655 52536 52773 129 99999 77 99999 88888 20 52894 52774 53013 140 99999 92 99999 77 99999 53135 53014 53257 226 99999 68 99999 88888 20 53394 53258 53530 151 99999 96 99999 88888 20 53668 53531 53805 53 99999 48 99999 88888 20 53947 53806 54088 182 99999 52 99999 88888 20 54228 54089 54366 235 99999 38 99999 88888 20 55429 55305 55553 135 99999 55 99999 88888 23 55700 55554 55845 99 99999 50 99999 88888 20 55970 55846 56094 289 99999 61 99999 88888 28 56181 56095 56267 610 99999 58 99999 88888 42 56360 56268 56452 631 99999 62 99999 88888 38 56620 56453 56786 193 99999 36 99999 88888 20 56956 56787 57125 113 99999 36 99999 88888 20 57328 57126 57530 73 99999 34 99999 88888 17 57652 57531 57774 80 99999 36 99999 88888 22 57955 57775 58134 68 99999 32 99999 88888 19 58317 58135 58499 65 99999 32 99999 88888 20 58678 58500 58855 201 99999 32 99999 88888 20 59037 58856 59218 340 99999 34 99999 88888 19 59354 59219 59488 450 99999 39 99999 88888 27 59579 59489 59669 416 99999 51 99999 88888 37 59812 59670 59953 356 99999 35 99999 88888 28 60111 59954 60267 108 99999 33 99999 88888 23 60358 60268 60448 112 99999 62 99999 88888 41 60614 60449 60780 52 99999 88888 18 88888 25 60945 60781 61108 59 99999 88888 19 88888 27 61274 61109 61439 99 99999 36 99999 88888 26 61548 61440 61655 178 99999 54 99999 88888 41 61762 61656 61867 243 99999 56 99999 88888 42 62029 61868 62189 153 99999 37 99999 88888 26 62359 62190 62528 73 99999 39 99999 88888 27 62752 62529 62975 55 99999 31 99999 88888 19 63090 62976 63204 166 99999 55 99999 88888 42 63345 63205 63484 263 99999 44 99999 88888 33 63628 63485 63770 295 99999 45 99999 88888 32 63889 63771 64007 257 99999 51 99999 88888 37 64193 64008 64378 124 99999 30 99999 88888 24 64604 64379 64828 94 99999 30 99999 88888 19 65006 64829 65183 94 99999 88888 19 88888 26 65370 65184 65556 141 99999 36 99999 88888 26 66158 65970 66345 284 99999 36 99999 88888 26 66476 66346 66605 236 99999 54 99999 88888 41 66749 66606 66891 125 99999 45 99999 88888 34 67099 66892 67305 74 99999 42 99999 88888 26 67484 67306 67662 78 99999 42 99999 88888 30 67798 67663 67933 215 99999 55 99999 88888 41 68067 67934 68200 237 99999 53 99999 88888 41 68341 68201 68480 381 99999 88888 29 88888 41 68611 68481 68740 324 99999 63 99999 88888 41 68875 68741 69008 390 99999 55 99999 88888 41 69143 69009 69276 363 99999 56 99999 88888 41 69413 69277 69548 397 99999 55 99999 88888 41 69712 69549 69875 320 99999 47 99999 88888 32 70046 69876 70215 139 99999 41 99999 88888 27 70356 70216 70495 183 99999 50 99999 88888 27 70639 70496 70782 82 99999 42 99999 88888 27 70876 70783 70969 116 99999 88888 30 88888 42 71102 70970 71234 73 99999 88888 22 88888 30 71369 71235 71503 83 99999 42 99999 88888 27 71647 71504 71790 70 99999 38 99999 88888 27 71933 71791 72075 58 99999 37 99999 88888 27 72210 72076 72343 64 99999 38 99999 88888 27