全国天气雷达组网反射率产品

产品包括组网组合反射率、混合扫描反射率、三维反射率。组合反射率为垂直方向上雷达观测的最大反射率，用于初生对流回波及成熟雷暴的监测；混合扫描反射率根据波束遮挡情况选择不同仰角的数据拼接得到，用于定量估测降水及监测低层仰角回波的发展动态；三维反射率为等高面上的反射率因子，用于监测特定高度的回波范围、强度、演变情况。

The dataset includes three product types: networked composite reflectivity, hybrid scan reflectivity, and three-dimensional reflectivity. Networked composite reflectivity represents the maximum radar-observed reflectivity in the vertical dimension, which is used for monitoring nascent convective echoes and mature thunderstorms; hybrid scan reflectivity is developed by splicing data from different elevation angles based on beam occlusion conditions, and serves for quantitative precipitation estimation (QPE) as well as monitoring the development dynamics of low-elevation echoes; three-dimensional reflectivity refers to reflectivity factors on constant-altitude planes, which is applied to monitor the echo extent, intensity and evolutionary patterns at specific altitudes.

搜集汇总

背景与挑战

背景概述

该数据集是全国范围的天气雷达反射率产品，包含组合反射率、混合扫描反射率和三维反射率三种类型，用于对流回波监测、降水估测和特定高度回波分析。数据集覆盖全国所有省份，具有6分钟时间分辨率和1千米/500米的空间分辨率，通过API接口提供服务，适用于农林、交通、科研等多个领域。