43 1010 "Talbot, Robert and Dibb, Jack " University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SONEX 1 1 1997 10 15 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 46133.5 44990 47277 88888.0 39.7 88888.0 17.1 4.3 0.3 88888.0 258 99999 48094.5 47380 48809 88888.0 32.3 88888.0 17.6 5.7 0.3 88888.0 88888.0 99999 50567 49704 51430 88888.0 31.5 88888.0 28.3 8.7 0.6 3.0 405 99999 53212.5 52295 54130 2.9 47.6 1.1 44.2 7.3 2.3 6.8 656 99999 56093.5 55172 57015 3.0 52.7 88888.0 34.7 44.4 2.4 8.6 4533 99999 59069.5 58130 60009 2.1 62.4 1.4 12.1 16.5 0.1 5.1 8178 99999 61681.5 60140 63223 3.4 15.1 88888.0 32.6 9.1 0.3 88888.0 782 99999