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<br />state condition as possible. Seedability will be determined <br />on the basis of the physical measurements from the aircraft <br />and ground based instrumentation. <br /> <br />Typical aircraft seeding rates will be 5-10 gm min-l <br />in 2 to 3 minute bursts for AgI-acetone based seeding and <br />.5 to 1.0 Ib mi-l for dry ice seeding. The ground based seeding <br />rate is approximately 30 gm hr-l with the DRI and Skyfire <br />generators. The aircraft will fly through the target area <br />cloud and the seeding area cloud prior to seeding to obtain <br />measurements of liquid water and ice crystal habits in the <br />natural environment. After seeding, in the case of aerial <br />seeding, the aircraft will fly legs along the wind across <br />the target area to determine changes in the cloud due to seeding. <br />If ground seeding is utilized the aircraft will fly sampling <br />legs across the wind at increasing intervals downwind from <br />the generator site. <br /> <br />Little or no nighttime seeding is anticipated and Sunday's <br />will always be a standdown day. Seeding decisions will be <br />made in the Montrose office based on all of the available <br />data. The Montrose office has access to hourly weather reports <br />and upper air soundings via a computer tie-in to the Bureau <br />of Reclamation's Environmental Data Network (EON). The Montrose <br />office is also equipped with a Unifax II facsimile recorder <br />which supplies GOES satellite photos every 30 minutes. There <br />are also plans to install a telemetered precipitation gage <br />on the Grand Mesa which will give near real-time readout of <br />precipitation within the target area. Routine weather forecasts <br />will be supplied to the project from the Salt Lake City office <br />of North American Weather Consultants. This facility is equipped <br /> <br />4 <br />