42 1010 Talbot, Robert and Dibb, Jack University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SUCCESS 1 1 1996 4 20 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 56355 56100 56610 77.7 114.6 88888 88888 127.7 14.1 60.9 154.3 34.6 57390 56700 58080 87.1 139.7 10.7 88888 182.3 21.3 19.5 181.9 39.5 58725 58200 59250 88.4 151.2 4.7 88888 192.6 1.2 88888 218.3 43.1 59820 59460 60180 46.7 7.4 20.3 88888 88888 16.5 74.6 14.2 4.6 60660 60240 61080 26.2 6.2 31.5 88888 88888 88888 88888 10.3 4.3 61830 61380 62280 149.2 140.8 0.9 88888 167.2 14.5 76.2 229.4 59.8 63150 62520 63780 13.3 7.6 2.0 88888 2.6 6.4 13.3 10.3 3.7 64620 64140 65100 159.9 109.2 88888 88888 120.7 14.4 97.2 156.8 38.3 65880 65220 66540 85.5 13.5 1.4 88888 20.8 21.6 86.7 20.8 6.5 67155 66630 67680 125.3 206.2 88888 88888 253.5 6.2 22.2 271.2 62.4 68865 68400 69330 184.3 137.8 20.2 88888 172.2 88888 88888 204.8 49.4 70230 69570 70890 254.9 144.5 7.6 88888 167.5 88888 88888 257.9 62.0 71550 71100 72000 150.9 114.6 88888 88888 149.5 35.8 99.0 179.2 54.1 72750 72120 73380 14.2 9.7 3.9 88888 11.7 88888 88888 16.7 3.9 74865 74610 75120 73.3 151.6 88888 88888 179.2 88888 8.9 192.0 45.9