GPM GROUND VALIDATION NASA MICRO RAIN RADAR (MRR) GCPEX

The GPM Ground Validation NASA Micro Rain Radar (MRR) GCPEx dataset was collected by a Micro Rain Radar (MRR), which is a vertically pointing Doppler radar which provides measurements of vertical velocity, drop size distribution, rainfall rate, attenuation, liquid water content, and reflectivity factor obtained during the GPM Cold-season Precipitation Experiment (GCPEx), which took place in Canada during Winter 2011-2012. GCPEx addressed shortcomings in the GPM snowfall retrieval algorithm by collecting microphysical properties, associated remote sensing observations, and coordinated model simulations of precipitating snow. The MRR is a frequency-modulated continuous wave (FMCW) vertically pointing Doppler radar, which operates at 24.24GHz, and it is the second generation of the instrument manufactured by METEK (http://metek.de/product/mrr-2/). NASA MRR data was collected from late October 2011 through March 2013. Version 2 of the dataset became active on 13-May-2015.

GPM 地面验证项目中的 NASA 微雨雷达（MRR）GCPEx 数据集由一款微雨雷达（MRR）收集而成，该雷达为垂直指向的多普勒雷达，能够提供垂直速度、液滴尺寸分布、降雨率、衰减、液态水含量以及反射率因子的测量数据，这些数据是在 2011-2012 年冬季于加拿大进行的 GPM 冷季降水实验（GCPEx）期间获得的。GCPEx 通过收集微物理特性、相关遥感观测数据以及降雪降水协调模型模拟，旨在解决 GPM 雪量检索算法的不足。MRR 是一款频率调制连续波（FMCW）垂直指向的多普勒雷达，工作频率为 24.24GHz，是 METEK（http://metek.de/product/mrr-2/）制造的仪器第二代产品。NASA MRR 数据的收集时间从 2011 年 10 月下旬至 2013 年 3 月。数据集的第二个版本于 2015 年 5 月 13 日生效。