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<br />8. Operational Plan (cont) <br /> <br />f <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 />. <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 ,,'ill be operated from the ground. <br /> <br />4) Description of the seeding devices, materials and seeding <br />rates tete.: <br />-, '~-< <br /> <br />Thirty Elgh~ manually operated ground-based cloud nuclei <br /> <br /> <br />generators will be located within and around the project area. <br /> <br /> <br />These manually operated generators will be the same type as used <br /> <br /> <br />on the Colorado River Basin Pilot Project and projects operated <br /> <br /> <br />by Western Weather Consultants, Inc. during the past three years. <br /> <br /> <br />In previous use, ,these generators have proven to be efficient <br /> <br /> <br />nuclei generators, safe and require very little mrtintenance. The <br /> <br /> <br />solution used will be a 4% silver iodide and a 1.25% sodium iodide <br /> <br /> <br />solution in acetone. This solution when burned in a propane <br /> <br /> <br />flame at a rate of 20 grams per hour per site will produce <br /> <br /> <br />approximately 1016 effective nuclei in cloud systems with a 500 <br /> <br /> <br />mb temperature aroud -20oC.' This variable output generator will <br /> <br /> <br />be operated at rates from 5 to' 40 grams per hour depending on the <br /> <br /> <br />seedability of cloud 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 rcasonable 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 />