43 1010 "Talbot, Robert and Dibb, Jack " University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SONEX 1 1 1997 10 13 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 58395 57220 59570 6.4 18.9 1.7 32.6 28.2 2.1 0.9 474 99999 60745 59740 61750 2.9 11.2 1.1 49.8 11.6 1.0 88888.0 231 99999 62919 62393 63445 8.4 29.8 2.1 31.3 14.9 5.3 2.8 930 99999 64312 63572 65052 6.8 49.5 1.7 27.8 6.5 0.4 88888.0 1800 99999 67685 66200 69170 88888.0 18.8 88888.0 4.3 3.5 0.6 88888.0 203 99999 70507 69314 71700 88888.0 21.9 88888.0 15.1 1.4 0.7 88888.0 577 99999 73423 71856 74990 2.9 16.1 88888.0 34.3 24.4 2.0 7.7 387 99999 75927 75160 76694 99999.0 24.3 2.7 89.0 89.1 5.4 9.5 429 99999 77520 76800 78240 12.9 30.7 88888.0 57.3 68.5 2.9 3.1 767 99999