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<br />Determination of the best seeding modes and rates will be made <br />primarily by detecting the effects of seeding on the microphysics <br />of the separate cloud types. The main effects will be measured <br />by the King Air 200 aircraft for cells and bands. However, most <br /> <br />e <br /> <br />^".-- <br />- ~eedable regions and effects of seeding in stable, orographic <br />clouds will probably occur below minimum flight altitude. <br />Because of this, seeding effects for this cloud type will be <br /> <br />measured by observing ground microphysics. Detection of seeding <br /> <br />effects by precipitation gage or radar is not expecte!d. However, <br /> <br />these data will be analyzed to detect any possible effects. <br /> <br />Randomization of aerial seeding events will be done on a 1/3 AgI, <br />1/3 dry ice, and 1/3 no seed basis. Seeding by ground-based AgI <br /> <br />e <br /> <br />will be done according to SMUD's own randomization sc:hedule. <br /> <br />NAWC has recommended that the effects of seeding during the <br /> <br />calibration season be targeted in a region lying approximately <br />15 km to either side of 1-80 between Truckee and Blue Canyon, <br />California. This area is located along the northern boundary of <br />the SCPP primary study area. Figure 1-7 outlines the calibration <br />seeding trial test area. <br /> <br />2. What seed i ng tracks shoul d be used to seed in thE! exploratory <br /> <br />experiment? <br /> <br />Since seedable regions appear to be concentrated in or near <br /> <br />convective cells, the main seeding strategy will be to seed short <br /> <br />e <br /> <br />1-30 <br />