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<br />8. Operational Plan (cont) <br /> <br />and pibals. Also available will be radar data, half-hourly <br /> <br /> <br />satellite maps from the National Weather Service, rawinsonde <br /> <br /> <br />data and other forecast aids to assist in selecting favorable <br /> <br /> <br />storm periods suitable for modification to achieve the intended <br /> <br /> <br />objectives. <br /> <br />3) Types of Aircraft: <br /> <br />There will be no aircraft used for seeding on this program. <br /> <br /> <br />All cloud nuclei generators will be operated from the ground. <br /> <br />4) Description of the seeding devices, materials and seeding <br /> <br />rates, etc.: <br /> <br />Thirty four (34) manually operated ground-based cloud nuclei genera- <br /> <br /> <br />tors will be located within and around the project area. These <br /> <br /> <br />manually operated generators will be the same type as used on the <br /> <br /> <br />Colorado River Basin Pilot Project and projects operated by <br /> <br /> <br />Western Weather Consultants, Inc. during the past five years. In <br /> <br /> <br />previous use, these generators have proven to be efficient nuclei <br /> <br /> <br />generators, safe and require very little maintenance. The solution <br /> <br />used will be a 4% silver iodide and a 1.25% sodium iodide solution <br /> <br /> <br />in acetone. This solution when burned in a propane flame at a rate <br /> <br /> <br />of 20 grams per hour per site will produce approximately 1016 <br /> <br /> <br />effective nuclei in cloud systems with a 500 mb temperature around <br /> <br /> <br />_200 C. This variable output generator will be operated at rates <br /> <br /> <br />from 5 to 40 grams per hour depending on the seedability of cloud <br /> <br />conditions. <br /> <br />5) Description of how the project will be implemented and <br />carried out: <br /> <br />The operational procedures to be used by the applicant to <br /> <br /> <br />achieve the stated objective are to produce silver iodide crystals <br /> <br /> <br />(artificial cloud nuclei) from the network of ground-based <br /> <br /> <br />generators for diffusion by favorable wind flows into selected <br /> <br /> <br />storm or cloud types favorable for'reasonable precipitation <br /> <br /> <br />increases over the project area. An analysis of low-level wind <br /> <br /> <br />fields, cloud characteristics, stability parameters, terrain <br /> <br />-4- <br />