Global Precipitation Measurement

The Global Precipitation Measurement (GPM) mission is an international network of satellites that provide the next-generation global observations of rain and snow. Building upon the success of the Tropical Rainfall Measuring Mission (TRMM), the GPM concept centers on the deployment of a “Core” satellite carrying an advanced radar / radiometer system to measure precipitation from space and serve as a reference standard to unify precipitation measurements from a constellation of research and operational satellites.

全球降水量测量（GPM）任务是一个国际卫星网络，该网络提供下一代全球降雨和降雪的观测数据。承继热带降雨测量任务（TRMM）的成果，GPM理念的核心在于部署一颗搭载先进雷达/辐射计系统的“核心”卫星，以从太空测量降水量，并作为参考标准，统一来自一系列研究型与业务型卫星的降水量测量数据。