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<br />" <br /> <br />5.2.5 <br /> <br />South Central Division <br /> <br />The large Sou~h Cen~ral Division contains a variety of <br />land use types. The Wasatcn Plateau extends north-so~th through <br />th~ cen~ral part of :ne division. Runoff supports croplands <br />on the upwind side of the plateau. Semidesert rangeland occurs <br />to ~he lee of the plateau. Population is much less dense <br /> <br />than in ~he ~orLh Cen~ral Division. <br /> <br />However, there are many <br /> <br />more farming commun~~ies than in the Western Division. <br /> <br />The area selected for modeli~g studies was from near <br /> <br />Minersville to Emery (refer to Figure 5.5). <br /> <br />The current Southern <br /> <br />Utah seeding program includes a remotely-controlled ground-based <br /> <br />seeding uni~ in the Black ~ountains south of Minersville and <br />a ma~ua~ly controlled seeding unit located near Beaver. <br /> <br />Modeling resul-:s are shown in Table 5.9. <br /> <br />For stable <br /> <br />conditions, seedi~g with the re~otely-controlled unit near <br /> <br />Mine~sville produced only a s~all effect on ~bnroe Peak (northeast <br /> <br />of ~arysvale). No seeding effect was predicted when the seeding <br />si-ce was removed to 3eaver. With convection, the seeding <br />increments increased, especially when the site near Minersville <br />was used. <br /> <br />A special modeling run was ~ade to simulate the more <br />convective springtir'ie storrr:s. In this case, the cloud liquid <br />water contents were doubled (maxi~um of 1 gfm3). Seeding <br />from the remote control site near Minersville resulted in <br /> <br />good increases in the Tushar Moun'tains. Aerial seeding along <br />Victor Airway 21E near ~inersville resulted in a large area <br /> <br />of seeding increases in and east of the Tushar- ~1oun"tains. <br /> <br />5-28 <br />