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

High-Resolution Rapid Refresh (HRRR) is a NOAA real-time 3-kilometer resolution, hourly-updated, cloud-resolving, convection-allowing atmospheric model, initialized via 3-kilometer grid and 3-kilometer radar data assimilation. Radar data is assimilated into HRRR every 15 minutes within a 1-hour window, providing further detailed insights for the 13-kilometer radar-enhanced hourly data assimilation of the Rapid Refresh system. It features high-resolution initial condition fields at 3-kilometer resolution, covering over 30 surface variables including temperature, atmospheric pressure, wind speed and other relevant meteorological parameters. This dataset can be applied to meteorological assimilation, downscaling, forecasting and other related research and application scenarios.

AI搜集汇总

背景与挑战

背景概述

HRRR数据集是美国国家海洋大气管理局（NOAA）发布的高分辨率快速更新同化数据，提供3公里分辨率、每小时更新的云分辨大气模式，包含地表温度、气压、风速等30余个变量。该数据集专为气象同化、降尺度和预报等应用设计，数据通过雷达同化初始化，具有实时性和高精度特点。