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<br /> <br />., <br /> <br />~ <br /> <br />. <br /> <br />.- <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />3. Research Instrumentation <br />A variety of instrumentation will be used to carry out the planned <br />research. For establishing the synoptic, meteorological context of the <br />study clouds there will be National Weather Service NAFAX and Service A <br />and Service C products and GOES satellite imagery. On the local scale <br />there will be data from a dE~dicated rawinsonde, observations of the <br />current weathe.r, and hygrothermograph and microbarograph records. <br />Precipitation data will be obtained fr"om recording gages. <br />The seeding material delivery experiments will involve the release <br />of SF6 tracer material from potential ground generator sites upwind of <br />the Tushar Mtns and measureml~nts of the SF6 concentration with an array <br />of sequential bag samplers located near and on the T ushar Mtns. The <br />experiments will also track I:onstant volume balloons with a special <br />Vaisala rawinsonde trac;::king unit acquired for the purpose. <br />The cloud physics and kinematics experiments will depend mainly on <br />remote sensing instrumentation. This includes a C-band Doppler radar <br />and a Ka-band Doppler radar with dual-polarization capability. There is <br />a microwave radiometer for sensing total liquid water along its field of <br />view and a ruby polarization-diversity Iidar for observing the phase and <br />shape of hydrometeors. Supplementing this instrumentation is a device <br />at a high altitude exposed surface site which measures the amount of <br />supercooled liquid water blowing across the mountains at that level. <br />Visual and photographic surface observations will be made of the <br />microphysical properties of falling snow and other precipitation. <br />The instrumentation is described in more detail in the 1985 Field <br />Operations Plan. <br /> <br />9 <br />