摘要: The NEXt Generation Weather RADar (NEXRAD) program is a joint effort for thepurpose of defining, procuring, and installing a network of Doppler radars throughout the United States. The first phase of this project concentrated on g... 展开 The NEXt Generation Weather RADar (NEXRAD) program is a joint effort for thepurpose of defining, procuring, and installing a network of Doppler radars throughout the United States. The first phase of this project concentrated on gaining access to data from the Seattle WSR-88D radar. In Phase II of this project, the use of NEXRAD data for application to ground transportation systems was examined. the ability to derive traffic-based weather products from the NEXRAD radar measurements was established. Indices to characterize weather-related driving conditions were developed. Data on traffic flow for the I-5 Marysville to Tacoma corridor were obtained and combined with the radar-derived traffic indices. In addition to data access, the investigation examined the nature of the algorithms used by NOAA/NWD to produce the various NIDS products and developed an algorithm for point rainfall estimation that accounts for storm motion. Concepts of a storm detection, tracking, and forecasting algorithm were established as the means for future analysis and demonstrations. 收起