HRRR

高分辨率快速更新同化数据（HRRR）是NOAA实时3公里分辨率、每小时更新、云分辨、允许对流的大气模式，由3公里网格和3公里雷达同化初始化。雷达数据在1小时内每15分钟同化一次HRRR，为13km雷达增强快速刷新的每小时数据同化提供了进一步的细节。

包含地表30余个变量（包含温度、气压、风速等）3km分辨率高分辨率初始场。可用于气象同化、降尺度、预报等

The High-Resolution Rapid Refresh (HRRR) is a real-time, 3-kilometer resolution, hourly-updated, cloud-resolving, convection-permitting atmospheric model operated by the U.S. National Oceanic and Atmospheric Administration (NOAA), initialized with 3-kilometer grid data and 3-kilometer radar data assimilation. HRRR assimilates radar observations every 15 minutes within a 1-hour cycle, delivering additional fine-grained details for the hourly data assimilation process enhanced by 13-kilometer radar rapid refresh capabilities. This dataset provides high-resolution 3-kilometer initial fields encompassing over 30 surface variables including temperature, atmospheric pressure, wind speed and more. It can be utilized for meteorological data assimilation, downscaling, numerical weather prediction and other relevant research and application scenarios.