GPM Ground Validation KMRX NEXRAD IPHEx V1

The GPM Ground Validation KMRX NEXRAD IPHEx dataset contain data from the KMRX NEXt Generation Weather RADar system (NEXRAD) instrument in operation during the Integrated Precipitation and Hydrology Experiment (IPHEx) field campaign to help support the ground validation of the Global Precipitation Measurement (GPM) and evaluate Quantitative Precipitation Estimation (QPE) products for hydrologic forecasting in the southeast region of the United States. NEXRAD is a network of 160 stationary S-Band radars dispersed throughout the United States and select locations abroad. These images extend from May 1, 2014 through June 12, 2014 as part of the GPM Ground Validation IPHEx datasets. The NEXRAD datasets contain browse images of base reflectivity observations in the Portable Network Graphic (PNG) format. Base radar reflectivity is the measure of transmitted power returned to the radar after intercepting a target, for example, rain droplets. This information can illustrate the amount and size distribution of water particles in a given unit volume of atmosphere.

GPM 地面验证 KMRX NEXRAD IPHEx 数据集收录了在综合降水与水文实验（IPHEx）现场活动中运行的 KMRX NEXt 代气象雷达系统（NEXRAD）仪器所采集的数据，旨在辅助 GPM 全球降水测量系统的地面验证，并评估美国东南部地区水文预报的定量降水估计（QPE）产品。NEXRAD 是一个遍布美国及部分海外选定的位置的 160 部固定 S 波段雷达网络。这些图像的采集时间跨度从 2014 年 5 月 1 日至 2014 年 6 月 12 日，作为 GPM 地面验证 IPHEx 数据集的一部分。NEXRAD 数据集包含底反射率观测的浏览图像，格式为便携式网络图形（PNG）。底雷达反射率是指雷达在拦截目标（例如雨滴）后返回的传输功率的测量，此类信息能够展示特定大气单位体积中水粒子的数量和尺寸分布。