43 1010 "Talbot, Robert and Dibb, Jack " University of New Hampshire DC-8 Atmospheric Aerosol Chemical Composition SONEX 1 1 1997 10 20 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 30690 30360 31020 88888.0 31.3 88888.0 88888.0 88888.0 88888.0 88888.0 2890 99999 31800 31200 32400 88888.0 19.3 88888.0 88888.0 88888.0 0.0 88888.0 767 99999 33090 32520 33660 6.6 25.2 88888.0 28.9 30.0 8.8 0.3 674 99999 34380 33780 34980 11.3 29.8 1.3 59.7 11.5 2.0 88888.0 1113 99999 35670 35100 36240 31.8 62.6 2.3 49.0 92.9 4.9 54.0 715 99999 36990 36360 37620 88888.0 13.1 88888.0 71.6 10.5 88888.0 1.9 88888.0 99999 38760 38160 39360 35.9 14.7 88888.0 88888.0 50.8 88888.0 88888.0 88888.0 99999 40155 39480 40830 35.1 11.7 88888.0 88888.0 17.8 0.4 11.2 41 99999 42120 41340 42900 17.3 15.0 88888.0 88888.0 20.4 0.1 88888.0 11 99999 43440 43020 43860 88888.0 7.7 88888.0 88888.0 88888.0 88888.0 88888.0 88888.0 99999 44640 44040 45240 88888.0 20.1 88888.0 88888.0 18.4 88888.0 88888.0 88888.0 99999 45960 45360 46560 88888.0 12.0 88888.0 88888.0 88888.0 88888.0 88888.0 626 99999 47280 46680 47880 88888.0 39.6 88888.0 88888.0 8.2 0.7 88888.0 679 99999 48600 48000 49200 21.2 32.0 88888.0 69.5 27.9 2.6 88888.0 1732 99999 49620 49320 49920 31.9 80.5 88888.0 131.5 38.6 0.5 5.3 8817 99999 50340 50040 50640 88888.0 63.5 88888.0 44.2 88888.0 88888.0 88888.0 7397 99999 51240 50760 51720 31.6 46.0 5.2 173.5 5.4 4.3 2.7 2675 99999 52357.5 51960 52755 88888.0 31.3 88888.0 162.9 23.1 10.4 60.9 1177 99999 53287.5 52920 53655 20.0 14.0 88888.0 138.6 88888.0 7.6 10.2 383 99999 54420 53880 54960 9.1 18.5 88888.0 34.3 88888.0 88888.0 0.2 855 99999