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<br />Huggins, A. W., 1990: Investigations of winter mountain storms in Utah during the 1987 Utah/NOAA field <br />program. Final Report to Utah Division of Water Resources, subcontract under NOAA FY 87 <br />Cooperative Agreement. Attnospheric Sciences Cent{:r, Desert Research Institute, Reno, NV, 212 pp. <br />(available from National Technical Information Servi(:e, 5285 Port Royal Rd.. Springfield, V A 22161). <br /> <br />No abstract. <br /> <br />Huggins, A. W., R. J. Meitin, and R. F. Reinking, 1990: Comparison of radiometric measurements of cloud <br />liquid water near a mountain crest and over a downwind valley. Proceedings, 5th Conference on <br />Mountain Meteorology, Boulder, CO, June 25-29, 1990. American Meteorological Socil~ty, Boston, <br />MA, 135-142. <br /> <br />No abstract. <br /> <br />Huggins, A. W., and K. Sassen. 1990: A high altitude ground-based cloud seeding experiment conducted in <br />southern Utah. Journal of Weather Modification, 22:18-29. <br /> <br />A wintertime ground-based cloud seeding experiment conducted as part of the 1989 Utah/NOAA <br />cooperative weather modification program is described. The results from one experiment on 3 February <br />1989 are presented. Meteorological conditions led to the development of orographic clouds over the <br />Tushar Mountains of southern Utah which appeared to be nearly ideal for seeding operalions. <br />Radiometrically measured liquid water was abundant in the vicinity of seeding generators and the water <br />appeared to be sufficiently supercooled to enable nucleation by silver iodide. <br /> <br />The experiment entailed pulsed releases of silver iodide from high altitude generators located on upwind <br />ridges of the Tushar Mountains. A Ka-band radar, aspirated PMS 2D-C probe, and manual <br />microphysics observations were used to monitor precipitation 10-13 Ian downwind of the seeding <br />generators. Snow samples were also collected periodilcally and analyzed for silver content. The overall <br />results were disconcerting in that two estimated periods of effect showed no enhanced silver content, <br />and no clear microphysical or radar seeding signatures due to large background variability produced by <br />a propagating mesoscale cloud feature, and natural sniDW characteristics which resembled the expected <br />characteristics due to seeding. A third period of effect had apparent microphysical and radar signatures, <br />but also lacked the presence of silver in the snow. Targeting of the single downwind ground target <br />apparently failed in this case due to inadequate wind documentation in the cloud layer, r1emote-generator <br />malfunction, or fallout of the seeded plume upwind of the target. <br /> <br />Huggins, A. W., A. B. Long, and B. A. Campistron, 1989: The impact of mesoscale precipitation bands on <br />liquid water and precipitation efficiency in a winter storm in Utah. Proceedings. 5th WMO Scientific <br />Conference on Weather Modification and Applied Cloud Physics, Beijing, China, May 8-12, 1989. <br />World Meteorological Organization, Geneva, WMOrrD-No. 269, 55-58. <br /> <br />No abstract. <br /> <br />Huston, M. W., 1991: One- and two-dimensional model results compared with observations from a <br />North Dakota cloud. M.S. thesis, Department of Meteorology, South Dakota School of Mines & <br />Technology, Rapid City, SD, 97 pp. <br /> <br />No abstract. <br /> <br />43 <br />