37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 10 18 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 45700 45510 45890 52 99999 58 99999 27 99999 46067 45891 46242 50 99999 51 99999 19 99999 46432 46243 46620 46 99999 43 99999 25 99999 46798 46621 46975 62 99999 38 99999 23 99999 47150 46976 47323 31 99999 37 99999 18 99999 47499 47324 47675 26 99999 39 99999 24 99999 47852 47676 48027 40 99999 48 99999 25 99999 48161 48028 48294 35 99999 53 99999 23 99999 49217 49010 49423 163 99999 36 99999 21 99999 49620 49424 49816 135 99999 28 99999 24 99999 49966 49817 50114 118 99999 32 99999 23 99999 50264 50115 50412 88 99999 32 99999 19 99999 50569 50413 50724 71 99999 22 99999 88888 25 50873 50725 51020 80 99999 31 99999 88888 26 51173 51021 51325 96 99999 41 99999 39 99999 51483 51326 51640 46 99999 33 99999 57 99999 52163 51915 52410 84 99999 29 99999 61 99999 52782 52600 52963 129 99999 31 99999 33 99999 53144 52964 53323 67 99999 29 99999 88888 26 53499 53324 53673 187 99999 29 99999 30 99999 53847 53674 54020 210 99999 32 99999 88888 26 54194 54021 54368 134 99999 30 99999 88888 26 54541 54369 54712 142 99999 29 99999 26 99999 54885 54713 55057 321 99999 31 99999 88888 26 55261 55058 55465 314 99999 37 99999 88888 26 55678 55466 55890 269 99999 27 99999 88888 25 56031 55891 56170 317 99999 88888 29 88888 40 56308 56171 56444 275 99999 88888 29 88888 40 56588 56445 56730 346 99999 88888 29 88888 40 56871 56731 57010 272 99999 88888 29 88888 40 57152 57011 57293 334 99999 88888 29 88888 41 57431 57294 57568 288 99999 88888 30 88888 41 57707 57569 57845 343 99999 88888 29 88888 40 57985 57846 58123 246 99999 88888 30 88888 42 58256 58124 58388 319 99999 31 99999 88888 40 58532 58389 58674 283 99999 88888 25 88888 35 58802 58675 58928 419 99999 88888 29 88888 41 59056 58929 59183 278 99999 88888 29 88888 41 59308 59184 59432 229 99999 30 99999 88888 42 59564 59433 59694 121 99999 35 99999 88888 41 59819 59695 59943 105 99999 32 99999 88888 41 60066 59944 60188 237 99999 40 99999 88888 41 60322 60189 60455 292 99999 30 99999 88888 41 60583 60456 60711 185 99999 47 99999 88888 42 60848 60712 60983 173 99999 25 99999 88888 41 61111 60984 61238 159 99999 31 99999 88888 41 61371 61239 61502 162 99999 28 99999 88888 40 61638 61503 61772 211 99999 25 99999 88888 41 61900 61773 62027 421 99999 33 99999 88888 42 62143 62028 62257 219 99999 35 99999 88888 43 62404 62258 62550 168 99999 25 99999 88888 27 62691 62551 62830 175 99999 32 99999 88888 26 62964 62831 63098 161 99999 24 99999 88888 26 63236 63099 63372 209 99999 27 99999 88888 28 63461 63373 63550 104 99999 15 99999 88888 29