IDRA weather radar measurements - day 2017-05-20

Radar range: standard. Max rain level: strong rain. Parent item: IDRA weather radar measurements - month 2017-05 Measuring instrument: IDRA atmospheric radar in CESAR observatory, Cabauw IRCTR has built a high resolution radar system, IDRA (IRCTR Drizzle Radar), aimed at the detailed observation of the spatial and temporal distribution of rainfall and drizzle. The system was placed at the end of August 2007 on top of a 213 m high meteorological tower in the CESAR (Cabauw Experimental Site for Atmospheric Research) observatory in Cabauw, The Netherlands. This location has several advantages: In the first place, an increased sensitivity due to the reduction of the influence of ground clutter. Secondly, it allows direct observation of the horizontal distribution of low level clouds and fog. Finally, the presence of other instruments in the vicinity enhances the understanding of the physical processes in the atmosphere by synergistically combining their measurements. Data from other instruments at CESAR are available at {http://www.cesar-database.nl}. IDRA provides the horizontal distribution of reflectivity, mean Doppler velocity, Doppler spectrum width and polarimetric parameters like differential reflectivity, linear depolarization ratio or specific differential phase. The data collected is freely available to the scientific community.

雷达量程：标准量程。最大降雨等级：强降雨。父数据集：IDRA气象雷达观测数据——2017年5月。观测仪器：位于荷兰卡鲍（Cabauw）的CESAR（大气研究实验站点，Cabauw Experimental Site for Atmospheric Research）观测站内的IDRA大气雷达。IRCTR搭建了一套高分辨率雷达系统IDRA（IRCTR 毛毛雨雷达，IRCTR Drizzle Radar），旨在精细化观测降雨与毛毛雨的时空分布特征。该系统于2007年8月末部署于荷兰卡鲍市CESAR大气研究实验站内一座213米高的气象铁塔塔顶。该观测点位具备多重优势：其一，可降低地面杂波的干扰，提升雷达探测灵敏度；其二，可直接开展低层云与雾的水平分布观测；其三，站点周边部署了多台配套观测仪器，通过多源数据的协同融合分析，可深化对大气物理过程的认知。CESAR观测站其他仪器的观测数据可通过网址{http://www.cesar-database.nl}获取。IDRA雷达可输出反射率、平均多普勒速度、多普勒谱宽以及偏振参数（如差分反射率、线性退极化比、比差分相位）的水平分布数据。本数据集面向科研群体免费开放。