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<br />UIJul/'t. <br /> <br />physical events will provide confidence that the increases in precipi- <br />tation and streamflow are due to seeding. <br /> <br />4. Suspension criteria. - Certain weather conditions that could be <br />detrimental to public safety and cause potential property and environ- <br />mental damage require suspension criteria to minimize any possible <br />weather modification contribution to potentially hazardous situations. <br />The ability of the CREST Program to forecast and avoid hazardous <br />conditions is very important in limiting damage associated with weather <br />modification and maintaining a responsible public image. Therefore, <br />operational seeding will be suspended during situations which could <br />have pronounced detrimental effects on the public property, and the <br />environment in and near the project areas. Seeding suspensions are <br />generally expected to be necessary when severe avalanche dangers exist <br />and when the seasonal snowpackis much above long-term averages. In <br />addition, the CREST Operations Directors will have the authority to <br />suspend seeding activities and other operations under any special or <br />unusual circumstances which may be deemed hazardous. <br /> <br />B. Transferability Studies <br /> <br />Transferability studies will focus on collection and analysis of those <br />data required to permit the design and implementation of a well-founded <br />operational cloud seeding program as demonstrated in CREST throughout the <br />entire Colorado River Basin. Initial efforts will be centered on adapting <br />existing technology to the meteorology and topography of the two subbasins <br />selected as the demonstration sites. This is necessary to ensure that the <br />demonstration phase of the program proceeds as rapidly as possible. <br />Following this, major emphasis will be shifted to studies in the remaining <br />major water-producing subbasins not selected as demonstration sites. The <br />intent is to transfer the technological procedures established in the two <br />demonstration programs to the rest of the Colorado Basin in a timely <br />manner. This will allow Basin-wide operational seeding efforts to be <br />initiated as soon as practical while maintaining a high level of certainty <br />that the desired effects will be attained. In addition, it will provide <br />refined and verified projections of the amount and distribution of new <br />water that would be produced by a Basin-wide operational cloud seeding <br />program. <br /> <br />Throughout the transferability program, two principal areas of investiga- <br />tion will be pursued. These are: (1) studies of T&D of nucleating agents <br />and to identify the most effective seeding delivery system for each of the <br />major water-producing subbasins, and (2) seeding opportunity recognition <br />and response studies to identify the most effective implementation proce- <br />dures for each of the major water-producing subbasins. <br /> <br />1. Seeding systems. - T&D studies will be conducted <br />eight subbasins for a minimum of two winter seasons. <br />accomplish the following objectives: <br /> <br />a. Establish the rates of horizontal and vertical diffusion of <br />seeding agents under the range of stabilities and wind directions <br />characteristic of winter orographic storms. This will be done with <br /> <br />at each of the <br />This effort will <br /> <br />33 <br />