42 1010 Talbot, Robert and Dibb, Jack University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SUCCESS 1 1 1996 5 08 1996 8 30 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); pptv Sulfate (SO4); pptv Chloride (Cl); pptv Oxalate (C2O4); pptv Ammonium (NH4); pptv Potassium (K); pptv Sodium (Na); pptv Calcium (Ca); pptv Magnesium (Mg); pptv 2 1.0 1.0 99999 99999 Start Time; seconds Stop Time; seconds 0 14 Species mixing ratios are reported in parts per trillion by volume. Mixing ratio below limit of detection indicated as 88888. Start and stop times (in Universal Time) for individual samples are reported in seconds of the day (1 day = 86400 sec.). Average uncertainties in mixing ratios are as follows: NO3 20%, SO4 13%, Cl 30%, C2O4 10%, NH4 15%, K 20%, Na 35%, Ca 15%, Mg 10%. 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 64380 63720 65040 20.7 37.9 14.4 88888 88888 8.5 42.4 10.5 2.7 65790 65280 66300 23.7 2.2 18.2 88888 88888 88888 88888 88888 2.3 67470 66600 68340 76.8 36.5 88888 88888 88888 88888 88888 6.3 1.7 68940 68610 69270 88888 182.9 88888 88888 88888 88888 88888 88888 8.3 70044 69559 70530 132.0 88.3 88888 88888 3.0 88888 88888 1.2 0.7 71445 70950 71940 62.2 47.5 88888 88888 88888 88888 88888 88888 88888 73020 72270 73770 47.9 29.6 88888 88888 88888 88888 88888 62.5 68.9 75750 75330 76170 55.0 45.5 9.9 88888 0.1 88888 88888 2.0 88888