43 1010 "Talbot, Robert and Dibb, Jack " University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SONEX 1 1 1997 10 23 1998 3 16 0 Midpoint of sampling interval in elapsed seconds from 00Z on takeoff date. 9 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 99999 99999 99999 99999 99999 99999 99999 99999 99999 Nitrate (NO3) Mixing Ratio (pptv) Sulfate (SO4) Mixing Ratio (pptv) Oxalate (C2O4) Mixing Ratio (pptv) Ammonium (NH4) Mixing Ratio (pptv) Potassium (K) Mixing Ratio (pptv) Magnesium (Mg) Mixing Ratio (pptv) Calcium (Ca) Mixing Ratio (pptv) Beryllium-7 (Be-7) Specific Activity (fCi/scm) Lead-210 (Pb-210) Specific Activity (fCi/scm) 2 1.0 1.0 99999 99999 Start Time; seconds Stop Time; seconds 0 15 "Species mixing ratios are reported in parts per trillion by volume, except for Be-7 and Pb-210." Mixing ratio below limit of detection indicated as 88888. Start and stop times (in Universal Time) for individual samples are reported in elapsed seconds from 0:00 z of the day of takeoff. Average uncertainties in mixing ratios are as follows: "NO3 20%, SO4 13%, C2O4 10%, NH4 15%, K 20%, Mg 10%, " "Ca 10%, Be-7 15%, Pb-210 20%. " Please note that it is not possible to use these data on time scales shorter than reported here. The most useful and appropriate method of comparing the UNH aerosol data to other SUCCESS data is to average the higher resolution measurements over the reported aerosol sampling time intervals. 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: rwt@christa.unh.edu or jed@unh.edu 23760 23160 24360 41.7 43.5 5.0 78.0 123.6 10.0 33.7 1021 99999 25080 24480 25680 88888.0 30.2 88888.0 62.1 88888.0 88888.0 88888.0 596 99999 26430 25800 27060 88888.0 22.3 88888.0 51.0 88888.0 88888.0 88888.0 1179 99999 27870 27180 28560 88888.0 30.6 88888.0 120.5 88888.0 88888.0 88888.0 890 99999 29430 28860 30000 3.8 15.5 88888.0 103.3 88888.0 88888.0 88888.0 202 99999 30660 30120 31200 0.6 17.7 88888.0 397.7 88888.0 88888.0 88888.0 888 99999 31890 31440 32340 88888.0 21.0 88888.0 228.3 88888.0 88888.0 88888.0 1066 99999 33000 32460 33540 52.3 21.2 88888.0 321.6 47.9 88888.0 88888.0 701 99999 34567.5 33675 35460 88888.0 17.4 88888.0 102.6 88888.0 1.9 88888.0 204 99999 36270 35580 36960 88888.0 17.2 88888.0 122.8 88888.0 88888.0 88888.0 540 99999 37890 37260 38520 88888.0 15.1 88888.0 119.4 88888.0 88888.0 88888.0 313 99999 39510 38640 40380 88888.0 13.6 88888.0 88888.0 88888.0 88888.0 88888.0 654 99999 41145 40650 41640 88888.0 34.0 88888.0 88888.0 88888.0 88888.0 88888.0 317 99999 42330 41760 42900 88888.0 30.1 88888.0 77.8 88888.0 4.5 88888.0 1551 99999 43807.5 43215 44400 88888.0 39.5 88888.0 97.9 88888.0 88888.0 88888.0 588 99999 45120 44520 45720 14.4 37.5 88888.0 130.7 13.1 2.1 0.3 847 99999 46537.5 45840 47235 88888.0 39.7 2.7 79.6 2.1 3.2 88888.0 890 99999