Table 3. Aerosol Size Distribution and Chemical Composition for ICARTT Clouds Flight Number (Date) Aerosol Mode Modal Dpg, mum Modal sigma Modal Nap, cm-3 (NH4)2SO4 Mass Fraction, % IC3 (8/6/2004) Nucleation 0.014 1.253 6667 40 IC3 (8/6/2004) accumulation 0.024 1.222 2630 40 IC3 (8/6/2004) coarse 0.064 1.720 1541 40 IC5-a (8/9/2004) nucleation 0.027 1.477 2813 61 IC5-a (8/9/2004) accumulation 0.112 1.638 3353 61 IC5-a (8/9/2004) coarse 0.253 1.176 530 61 IC5-b (8/9/2004) nucleation 0.030 1.330 2949 61 IC5-b (8/9/2004) accumulation 0.051 1.121 486 61 IC5-b (8/9/2004) coarse 0.124 1.712 3170 61 IC5-c (8/9/2004) nucleation 0.013 1.066 163 66 IC5-c (8/9/2004) accumulation 0.035 1.479 2578 66 IC5-c (8/9/2004) coarse 0.138 1.708 2995 66 IC6-a (8/10/2004) nucleation 0.015 1.336 2287 65 IC6-a (8/10/2004) accumulation 0.042 1.400 3856 65 IC6-a (8/10/2004) coarse 0.141 1.663 652 65 IC6-b (8/10/2004) nucleation 0.014 1.230 1881 65 IC6-b (8/10/2004) accumulation 0.040 1.496 4381 65 IC6-b (8/10/2004) accumulation 0.163 1.534 533 65 IC6-b (8/10/2004) coarse 0.738 1.027 0.1 65 IC9-a (8/16/2004) nucleation 0.032 1.720 11890 15 IC9-a (8/16/2004) accumulation 0.128 1.380 1310 15 IC9-a (8/16/2004) coarse 0.274 1.150 420 15 IC9-b (8/16/2004) nucleation 0.051 1.438 8491 70 IC9-b (8/16/2004) accumulation 0.135 1.339 1365 70 IC9-b (8/16/2004) coarse 0.249 1.161 289 70 IC9-c (8/16/2004) nucleation 0.056 1.384 7959 50 IC9-c (8/16/2004) accumulation 0.141 1.354 1300 50 IC9-c (8/16/2004) coarse 0.260 1.140 244 50 IC10-a (8/17/2004) nucleation 0.016 1.161 469 38 IC10-a (8/17/2004) accumulation 0.037 1.360 4702 38 IC10-a (8/17/2004) accumulation 0.077 1.060 243 38 IC10-a (8/17/2004) coarse 0.143 1.581 1953 38 IC10-b (8/17/2004) nucleation 0.024 1.269 3577 38 IC10-b (8/17/2004) accumulation 0.042 1.123 355 38 IC10-b (8/17/2004) coarse 0.112 1.841 2393 38 IC11 (8/18/2004) nucleation 0.017 1.521 1322 15 IC11 (8/18/2004) accumulation 0.098 1.676 2339 15 IC11 (8/18/2004) coarse 0.237 1.289 587 15 IC12 (8/21/2004) nucleation 0.013 1.117 133 36 IC12 (8/21/2004) accumulation 0.096 1.296 206 36 IC12 (8/21/2004) coarse 0.082 1.728 4336 36