Japan's progress for the global precipitation measurement (GPM)
Japan's progress for the global precipitation measurement (GPM)
复制标题
日本在全球降水量测量（GPM）方面取得的进展
DOI：
10.1109/igarss.2003.1294220
复制
发表时间：
2003
期刊：
影响因子：
--
通讯作者：
R. Oki
中科院分区：
文献类型：
--
作者：
K. Nakamura;T. Iguchi;R. Oki
全球降水测量（GPM）由一颗核心卫星和一个至少配备微波辐射计的小卫星星座组成。GPM的主要目的是每三小时进行一次全球降水观测。核心卫星是直接从热带降雨测量使命飞行任务发展而来的，将配备一个双波长雷达和一个类似于热带降雨测量仪的辐射计。DPR是主要的和新的传感器。只有雷达才能直接观测到降水的三维结构。DPR将使用13.6 GHz和35 GHz的无线电波，以具有高精度的降雨估计，更高的灵敏度和液体/固体粒子的辨别能力。DPR的算法也在开发中。
The Global Precipitation Measurement (GPM) consists of a core satellite and a constellation of small satellites equipped with at least microwave radiometers. The primary purpose of GPM is three-hourly global precipitation observation. The core satellite has been grown up directly from the Tropical Rainfall Measuring Mission (TRMM) and to be equipped with a dual-wavelength radar (DPR) and a TMI-like radiometer. DPR is the primary and new sensor. Only the radar can directly observe three-dimensional precipitation structure. DPR would employ 13.6 GHz and 35 GHz radiowaves in order to have high accuracy rain estimate, higher sensitivity and liquid/solid particle discrimination capability. Algorithms for DPR is also under developing.