43 1010 "Talbot, Robert and Dibb, Jack " University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SONEX 1 1 1997 11 12 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 36227.5 35599 36856 1.3 44.6 2.1 0.6 88888.0 88888.0 88888.0 3994 99999 37590.5 37005 38176 88888.0 39.8 2.2 88888.0 88888.0 88888.0 88888.0 2435 99999 39064.5 38326 39803 4.2 15.4 1.1 88888.0 88888.0 88888.0 88888.0 136 99999 40837.5 39915 41760 88888.0 17.7 88888.0 88888.0 88888.0 88888.0 88888.0 305 99999 43027.5 41870 44185 88888.0 9.6 0.8 88888.0 88888.0 88888.0 88888.0 551 99999 45109 44305 45913 6.0 21.0 1.0 88888.0 88888.0 88888.0 88888.0 437 99999 46999 46039 47959 2.6 16.3 1.0 88888.0 88888.0 88888.0 88888.0 97 99999 49930 49094 50766 3.9 44.1 0.8 46.8 88888.0 88888.0 88888.0 200 99999 52405 51773 53037 11.3 46.7 3.4 88888.0 88888.0 88888.0 88888.0 5921 99999 53980.5 53136 54825 2.3 55.3 2.5 4.7 88888.0 88888.0 88888.0 5111 99999 56153 55220 57086 88888.0 13.2 1.0 88888.0 88888.0 88888.0 88888.0 1845 99999 57984 57208 58760 88888.0 15.0 1.3 88888.0 88888.0 88888.0 88888.0 419 99999