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<br />5.2.7 <br /> <br />Uinta Basin Division <br /> <br />The Uinta Basin is located in the northeastern part of <br />the state and is formed by the Uinta Mountains to the north <br />and the Tavaputs Plateau to the south. Cropland can be found <br />in t3e north part of the division, while upland rangelands <br />cover much of the south part. Most of the population is located <br />in the Duchesne-Vernal area. <br /> <br />Previous studies (Thompson et al., 1978) have shown that <br />trapping inversions occur frequently in the lower elevations <br />of the basin. Therefore, seeding simulations within the basin <br />were restricted to the Tavaputs Plateau. Both the West and <br />Eas~ Tavaputs Plateau were considered (see Figure 5.5). <br /> <br />Results of the modeling simulations are listed in Table 5.13. <br />For -:he West Tavaputs Plateau, seeding from Wellington under <br />stable conditions had no effect, since vertical dispersion <br />of the seeding plume was limited. Convection resulted in <br />relatively small increments in the plateau and a smaller increment <br />downwind near Duchesne. As was discussed in the previous <br />section, seeding atop the West Tavaputs Plateau produced increases <br />in the Uinta Mountains. Aerial seeding on Victor Airway 134 <br />resulted in good increases in the plateau, with smaller effects <br />downwind into the Uinta Mountains. <br /> <br />Very similar results were obtained from the modeling <br />studies for ~he East Tavaputs Plateau. Seeding effects occurred <br />only with convection when ground-based seeding was considered. <br />Aerial seeding south of Green River on Victor Airwav 8 produced <br />better results. <br /> <br />5-39 <br /> <br />1 <br />