Laserfiche WebLink
<br />_J. <br />e <br /> <br />In the winter of 1976-77, preliminary field studies were initiated <br />with a Skywater 5-cm radar operated by NAWC (North American Weather' <br />Consultants), a cloud physics aircraft from the University of <br /> <br />~ <br /> <br />Washington, and several types of ground instrumentation, such as <br />precipitation gages, an acoustic sounder, and mobile cloud physics <br /> <br />. 0-" <br /> <br />laoratory. The main objectives of the 1976-77 season were to: <br /> <br />1. Develop a radar climatology of Sierra Nevada storms. <br /> <br />2. Investigate the transport and diffusion characteristics <br /> <br />associated with these storms. <br /> <br />3. Investigate the microphysical characteristics of these <br /> <br />e <br /> <br />storms, particularly related to seedability. <br /> <br />A second year of preliminary data collection and analysis followed <br /> <br />due to severe drought conditions in California during 1976-77. The <br />main objectives of the 1977-78 winter season were to: <br /> <br />1. Obtain detailed data from unseeded storms with the cloud <br /> <br />physics aircraft, radars, disdrometers, rawinsonde, ground ice <br /> <br />crystal replicators, and precipitation gages which would permit <br />indepth analysis of several cases each of stable orographic <br /> <br />clouds, convective cells, and convective bands. <br /> <br />2. Measure the 3-D transport and diffusive properties of the <br /> <br />atmosphere in and around Sierra storms from airborne and ground <br /> <br />releases of AgI and Chaff. <br /> <br />e <br /> <br />1-7 <br /> <br />