Laserfiche WebLink
<br />." <br /> <br />obtained simply by switching seeding solutions. It is strongly recommended that such a change be made <br />in the operational program. <br /> <br />Considerable development, testing, and improvement of liquid propane dispensers was accomplished <br />during the Plateau program. These dispensers were used during many of the seeding experiments. <br />Propane dispenser development was based on important earlier work by Reynolds (1991) in California. A <br />totally automated propane seeding system was constructed (Super et al. 1995). An icing rate meter <br />detected SL W at the main propane dispenser site, and that dispenser and two satellite dispensers were <br />turned on and off as appropriate by progra~med data loggers. All propane dispensers were on high <br />-exposed ridges well upwind of the main barrier. This automated system remains in operation in the <br />mountains east of Ephraim, Utah, and a similar dispenser was recently deployed to the Wind River Range <br />of Wyoming (Roger Hansen, personal communication). <br /> <br />Cripps and Abbott (1997) developed a prototype icing rate meter for possible iIse with propane dispensers. <br />Ideally, each dispenser would be controlled by its own icing rate meter detecting SL VI presence at the <br />dispenser. It was hoped that more economical units could be developed, using direct current electrical <br />power from solar panels. While initial tests were promising, additional field tests and possible <br />modifications would be required before the device could be considered operational. <br /> <br />"'. <br /> <br />. . <br /> <br />27 <br /> <br /> <br />,~ <br />