Targeting of AgI in a Utah Winter Orographic Storm

by James A. Heimbach, Jr., U. of North Carolina, Asheville, United States,
Arlin B. Super, U. of North Carolina, Asheville, United States,

Document Type: Proceeding Paper

Part of: Irrigation and Drainage: Saving a Threatened Resource?In Search of Solutions


A cooperative research program among the Utah Division of Water Resources, the National Oceanic and Atmospheric Administration, and the Bureau of Reclamation has investigated targeting of ground-released silver iodide during a winter orographic storm. The cloud seeding material was transported at least 2 km vertically when embedded convection was present. However, ice nuclei concentrations at ambient cloud temperatures were likely too low for effective enhancement except in the highest, coldest cloud turrets.

Subject Headings: Weather modification | Water resources | Storms | Winter | Water reclamation | Snow | Ice

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