Rapid Update Cycle (RUC) [20 km]

The Rapid Update Cycle (RUC) weather forecast model was developed by the National Centers for Environmental Prediction (NCEP). On May 1, 2012, the RUC was replaced by NCEP's Rapid Refresh (RAP) weather forecast model. The RUC was designed to produce quick, short-term, weather forecasts using the most currently available observations. When it was first implemented in 1994, the model was run every three hours making forecasts out to 12 hours. By 2002, the RUC was run every hour, on the hour, producing 12-hour forecasts with a 1 hour temporal resolution. This dataset contains a 20 km horizontal resolution Lambert Conformal grid covering the Continental United States (CONUS) domain.

快速更新循环（Rapid Update Cycle, RUC）数值天气预报模式由美国国家环境预报中心（National Centers for Environmental Prediction, NCEP）研发。2012年5月1日，RUC被NCEP的快速刷新（Rapid Refresh, RAP）数值天气预报模式所替代。RUC的设计初衷是依托当前可获取的最新观测资料，生成快速短时天气预报。该模式于1994年首次投入运行时，每3小时执行一次计算，预报时效可达12小时。至2002年，RUC调整为每小时整点运行，可生成时间分辨率为1小时、时效12小时的预报产品。本数据集包含覆盖美国本土（Continental United States, CONUS）区域、水平分辨率为20公里的兰伯特共形投影网格数据。