GPM GROUND VALIDATION AUTONOMOUS PARSIVEL UNIT (APU) HYMEX V1

The GPM Ground Validation Autonomous Parsivel Unit (APU) HyMeX dataset was collected by the Autonomous Parsivel Unit (APU), which is an optical disdrometer that measures the size and fall velocity of single precipitation particles. The APU consists of the Parsivel (the precipitation measuring instrument), developed by OTT in Germany, and its support systems, which were designed and built by the University of Alabama in Huntsville. The HYdrological cycle in Mediterranean EXperiment (HyMeX) aimed to improve the understanding, quantification and modelling of the hydrological cycle in the Mediterranean, with emphasis on the predictability and evolution of extreme weather events, inter-annual to decadal variability of the Mediterranean coupled system, and associated trends in the context of global changeThe APU dataset for HyMeX provides precipitation data including raindrop size, raindrop counts, precipitation drop size, precipitation rate, precipitation amount, and snowflake size, snowflake counts, and snowflake distribution. The HyMeX APU data were collected in Italy and France from September to November 2012.

GPM 地面验证自主 Parsivel 单元（APU）HyMeX 数据集由自主 Parsivel 单元（APU）收集而成，该单元是一种光学降水粒子谱仪，用于测量单个降水粒子的尺寸和下降速度。APU 由德国 OTT 开发的 Parsivel（降水测量仪器）及其支持系统组成，支持系统由阿拉巴马大学亨茨维尔分校设计和建造。HYdrological cycle in Mediterranean EXperiment（HyMeX）旨在提升对地中海水文循环的理解、量化及建模，尤其关注极端天气事件的预测性和演变、地中海耦合系统的年际至十年际变化，以及在全球变化背景下的相关趋势。HyMeX APU 数据集提供了包括雨滴尺寸、雨滴计数、降水粒子尺寸、降水强度、降水量和雪花尺寸、雪花计数以及雪花分布等降水数据。HyMeX APU 数据于 2012 年 9 月至 11 月在意大利和法国收集。