37 1010 Talbot, Robert and Dibb, Jack University of New Hampshire Acidic Trace Gases SONEX 1 1 1997 10 31 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 30792 30585 30998 23 99999 46 99999 88888 19 31198 30999 31397 16 99999 44 99999 88888 19 31623 31398 31849 13 99999 55 99999 88888 19 32054 31850 32258 10 99999 39 99999 88888 19 32472 32259 32684 25 99999 37 99999 88888 19 32885 32685 33085 33 99999 42 99999 88888 19 33298 33086 33509 17 99999 41 99999 88888 19 33714 33510 33917 13 99999 49 99999 88888 19 34127 33918 34335 12 99999 43 99999 88888 19 34537 34336 34738 29 99999 45 99999 88888 20 34951 34739 35163 25 99999 41 99999 88888 19 36313 36090 36535 118 99999 32 99999 88888 19 36748 36536 36960 120 99999 33 99999 88888 19 37166 36961 37370 85 99999 41 99999 88888 19 37474 37371 37577 212 99999 66 99999 88888 42 37681 37578 37784 341 99999 73 99999 88888 42 37890 37785 37994 457 99999 72 99999 88888 42 38097 37995 38198 274 99999 62 99999 88888 42 38410 38199 38621 104 99999 45 99999 88888 20 38831 38622 39040 73 99999 42 99999 88888 19 39166 39041 39291 268 99999 95 99999 88888 38 39444 39292 39595 300 99999 66 99999 88888 38 39683 39596 39769 528 99999 64 99999 88888 42 39882 39770 39993 475 99999 69 99999 88888 41 40111 39994 40227 578 99999 62 99999 88888 43 40342 40228 40455 384 99999 63 99999 88888 42 40573 40456 40690 352 99999 61 99999 88888 41 40802 40691 40912 371 99999 69 99999 88888 41 41029 40913 41145 465 99999 88888 30 88888 41 41259 41146 41371 428 99999 76 99999 88888 42 41716 41603 41828 468 99999 69 99999 88888 42 41944 41829 42059 785 99999 69 99999 88888 41 42145 42060 42229 1395 99999 90 99999 88888 56 42316 42230 42401 1053 99999 87 99999 88888 56 42488 42402 42574 1118 99999 82 99999 88888 54 42654 42575 42733 970 99999 84 99999 88888 53 42820 42734 42906 875 99999 88888 30 88888 42 42995 42907 43083 1355 99999 67 99999 88888 42 43173 43084 43261 1154 99999 66 99999 88888 42 43352 43262 43442 957 99999 75 99999 88888 42 43531 43443 43619 1095 99999 71 99999 88888 42 43707 43620 43794 958 99999 72 99999 88888 42 43883 43795 43970 1058 99999 75 99999 88888 43 44059 43971 44147 491 99999 76 99999 88888 42 44233 44148 44318 473 99999 72 99999 88888 42 44408 44319 44496 296 99999 67 99999 88888 43 44606 44497 44715 274 99999 127 99999 88888 45 44840 44716 44964 146 99999 50 99999 88888 27 45113 44965 45262 197 99999 53 99999 88888 20 45417 45263 45570 116 99999 40 99999 88888 20 45719 45571 45866 247 99999 45 99999 88888 20 46020 45867 46172 569 99999 63 99999 88888 20 46321 46173 46470 650 99999 47 99999 88888 20 46624 46471 46777 452 99999 48 99999 88888 20 46927 46778 47076 193 99999 74 99999 86 99999 47221 47077 47365 141 99999 75 99999 74 99999 47494 47366 47622 118 99999 70 99999 66 99999 47762 47623 47900 105 99999 67 99999 75 99999 47999 47901 48097 246 99999 61 99999 88888 28 48198 48098 48297 120 99999 87 99999 97 99999 48436 48298 48573 94 99999 68 99999 65 99999 48711 48574 48848 296 99999 45 99999 88888 20 48998 48849 49147 86 99999 53 99999 59 99999 49285 49148 49421 93 99999 52 99999 88888 20 49524 49422 49625 29 99999 61 99999 88888 27 49776 49626 49925 72 99999 99999 99999 88888 20 50112 49926 50299 21 99999 99999 99999 88888 20 50458 50300 50615 33 99999 99999 99999 88888 27 51871 51725 52016 108 99999 36 99999 88888 27 52206 52017 52395 109 99999 36 99999 59 99999 52583 52396 52770 64 99999 46 99999 68 99999 52959 52771 53146 67 99999 48 99999 70 99999 53333 53147 53518 42 99999 43 99999 88888 19 53705 53519 53891 40 99999 41 99999 68 99999 54081 53892 54270 48 99999 45 99999 88888 20 54459 54271 54646 40 99999 48 99999 65 99999 54826 54647 55005 42 99999 40 99999 60 99999