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<br />" <br /> <br />The airborne AgI generators are of similar con- <br />struction and principles of operation as the ground based generators_ <br />'IWo generators will be on the aircraft, one on each wing tip. Each <br />generator can carry 6 gallons of solution. We plan to operate one <br />generator at a time and burn the AgI solution at a rate of 2.5 gallons <br />per hour or about 185 grams of AgI per hour. The nuclei efficiencies <br />are about the same as the ground generators, and have also been <br />verified by the esu eloud Simulation Laboratory. <br /> <br />5. Description of hew the project will be :iJnplemented <br />and ca=ied out. <br /> <br />Each day weather forecasts will be prepared by GOO <br />and csu scientists. At 0930 each day a conference telephone call will <br />be made and eIe will be briefed on the anticipated atrrospheric conditions. <br />CSU scientists will participate in seedability decisions. <br /> <br />If seedable cloud conditions are predicted, eIe will <br />determine the ground generators IlDSt suitable for operation based on <br />wind flew, stability (dispersion), and cloud temperature range that <br />will IlDst effectively target the watersheds in the project area. <br /> <br />Once the "initial" network of generators is deter- <br />mined, the generator operators will be telephoned and given instructions <br />to turn their generators on at specified times and operate them at a <br />given burn rate. They will also be given an estimated turn-off t:ille <br />which may be adjusted by another call from ele' s meteorologist. Genera- <br />tor operators will be given check sheets upon which they will record <br />details of the ground generator operation. A technician fran Aero <br />Systems will check the generators bi-weekly. GRD will give eIe updated <br />weather conditions and if necessary, the ground generator network will <br />be adjusted to fit the changing abnospheric conditions. esu scientists <br />will participate in decisions which would involve generator operation <br />adjustments. <br /> <br />If cloud conditions are predicted to contain high <br />liquid water content and/or the lew level air conditions are antici- <br />pated to contain temperature inversions, airborne cloud seeding opera- <br />tions will be instigated. Ice crystal fallout trajectories will be <br />computed on the basis of temperature and wind conditions. These tra- <br />jectory calculations will subsequently dictate the flight patterns and <br />distances up.vind of the target area which the aircraft will be directed <br />to fly. <br /> <br />Aircraft crews will be briefed on cloud/wind conditions <br />and will be given vORjDME positions to use as means of navigating the <br />specified flight tracks. They will fly to their assigned tracks and at <br />the assigned altitudes they will operate the AgI generators at specified <br />burn rates. Each flight will be about 4 hours in duration. It will take <br />