37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 10 9 1998 03 02 0 Midpoint of sampling interval in elapsed seconds from 00 Univeral 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 48277 48080 48474 54 99999 88888 15 88888 19 48682 48475 48889 158 99999 88888 16 88888 19 49087 48890 49283 192 99999 88888 15 88888 19 49492 49284 49700 264 99999 88888 18 88888 21 49897 49701 50093 249 99999 139 99999 62 99999 50300 50094 50506 150 99999 123 99999 79 99999 50709 50507 50910 335 99999 89 99999 48 99999 51106 50911 51300 271 99999 138 99999 55 99999 52495 52300 52690 303 99999 40 99999 85 99999 52916 52715 53117 207 99999 75 99999 99 99999 53319 53118 53519 148 99999 64 99999 94 99999 53720 53520 53920 190 99999 46 99999 85 99999 54106 53921 54291 249 99999 92 99999 101 99999 54465 54292 54638 207 99999 73 99999 103 99999 54815 54639 54990 178 99999 62 99999 97 99999 55161 54991 55330 145 99999 45 99999 100 99999 55504 55331 55676 159 99999 43 99999 95 99999 55848 55677 56020 148 99999 43 99999 96 99999 56191 56021 56360 258 99999 42 99999 103 99999 56530 56361 56699 125 99999 42 99999 85 99999 56870 56700 57039 254 99999 53 99999 71 99999 57211 57040 57382 145 99999 41 99999 52 99999 58788 58620 58955 237 99999 19 99999 87 99999 59127 58956 59297 216 99999 47 99999 78 99999 59466 59298 59633 231 99999 43 99999 100 99999 59799 59634 59964 146 99999 38 99999 76 99999 60130 59965 60294 280 99999 39 99999 81 99999 61263 61020 61506 676 99999 27 99999 88888 19 61635 61507 61762 929 99999 54 99999 109 99999 61888 61763 62013 871 99999 88888 29 88888 41 62141 62014 62268 955 99999 88888 29 88888 41 62389 62269 62508 759 99999 88888 29 88888 41 63183 62980 63385 508 99999 22 99999 31 99999 63571 63386 63756 425 99999 25 99999 43 99999 63951 63757 64145 412 99999 31 99999 68 99999 64362 64146 64577 415 99999 35 99999 44 99999 64746 64578 64915 405 99999 43 99999 88888 31 65160 64955 65365 227 99999 31 99999 88888 31 65569 65366 65771 453 99999 36 99999 88888 32 65958 65772 66143 394 99999 88888 23 88888 32 66323 66144 66502 707 99999 31 99999 88888 32 66607 66503 66710 346 99999 88888 30 88888 43 66885 66711 67058 268 99999 41 99999 107 99999 67232 67059 67405 351 99999 52 99999 88888 20 67582 67406 67758 129 99999 40 99999 100 99999 67904 67759 68049 117 99999 48 99999 111 99999 68178 68050 68305 331 99999 65 99999 109 99999 68423 68306 68539 160 99999 81 99999 28 99999