摘要: This document constitutes a portion of the final report to the National Science Foundation (NSF) on the National Hail Research Experiment (NHRE). The results of the NHRE radomized seeding experiment are discussed in a five-volume ... 展开 This document constitutes a portion of the final report to the National Science Foundation (NSF) on the National Hail Research Experiment (NHRE). The results of the NHRE radomized seeding experiment are discussed in a five-volume report published in December 1976 (NHRE 1976). The report on the research conducted in NHRE is now under preparation and will be published in 1980. The purpose of the material contained in this document is to summarize the research objectives, describe the observational systems and networks, and present summaries of selected daily research activities. 收起