43 1010 "Talbot, Robert and Dibb, Jack " University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SONEX 1 1 1997 10 18 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 46320 45540 47100 3.5 21.0 1.6 11.4 8.7 88888.0 1.1 602 99999 48075 47220 48930 0.7 16.3 88888.0 88888.0 0.0 88888.0 88888.0 548 99999 49785 49170 50400 88888.0 23.4 88888.0 88888.0 88888.0 88888.0 88888.0 1490 99999 51322.5 50520 52125 88888.0 26.9 88888.0 88888.0 88888.0 0.6 88888.0 948 99999 53040 52380 53700 88888.0 32.1 2.0 88888.0 88888.0 88888.0 88888.0 1084 99999 54450 53820 55080 88888.0 34.0 88888.0 88888.0 0.6 88888.0 88888.0 1128 99999 56115 55290 56940 88888.0 45.2 3.7 88888.0 88888.0 88888.0 88888.0 3524 99999 57645 57060 58230 88888.0 44.0 88888.0 88888.0 2.5 88888.0 88888.0 2237 99999 59190 58380 60000 26.9 35.8 2.4 88888.0 1.5 0.4 4.5 2612 99999 61080 60180 61980 88888.0 34.7 88888.0 88888.0 88888.0 88888.0 88888.0 2353 99999 63105 62550 63660 13.2 35.9 88888.0 73.8 22.6 2.5 6.4 699 99999