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<br /> 100 <br /> 80 <br />C> <br />z <br />25 60 <br />w <br />w <br />(,) <br />x <br />w 40 <br />~ <br />0 <br /> 20 <br /> 0 <br /> 0 10 20 30 40 50 <br /> Dy (fL m) <br /> <br /> <br />Fig. 2.6: The percentage of the measuranents of the volume-median <br />diameter that exceeded the indicated values. The different curves <br />correspond to the different areas in which the Wyoming King Air has <br />collected data during the past 5 yrs. The areas are: (SM) summertllne, <br />Montana HIPLEX; (SF) summertime, Florida; (SK) springtime, Kansas; (WCA) <br />wintertime, California; (SI) summertime, Illinois; (WU) wintertime, Utah; <br />(WGL) wintertime, Great lakes; and (WS) wintertime, Great Plains, <br />special icinq fliqhts. <br /> <br />100 <br /> <br /> <br /> 80 <br />~ <br />0 <br />w 60 <br />> <br />I- <br /><l <br />..J <br />::> 40 <br />~ <br />::> <br />(,) <br /> 20 <br /> 0 <br /> 0.01 0.1 10 100 1000 <br /> <br />CONCENTRATION (cm-3) <br />Fig. 2.7: Percentage of droplet spectra (l-s values) measured in 1979-81 <br />which had the indicated concentrations of droplets larger than various <br />thresholds. The right curve shows the total droplet concentration, and <br />other curves show the results when individual size channels of the <br />FSSP are successively eliminated from the total (beginning with the <br />smallest size). Cerni (1982a) found that at our typical airspeed the <br />channel sizes are (from top) 29.4, 27.0, 24.6, 22.4, 20.2, 18.4, 16.6, <br />14.6, 12.8, 11.2, 9.5, 8.0, 6.3, 4.5 and 2.8 ~m. <br />11 <br />