IDRA weather radar measurements - month 2017-05

Parent item: IDRA weather radar measurements - all data Detailed observation of the spatial and temporal distribution of rainfall and drizzle, measured by IDRA (IRCTR Drizzle Radar) at Cabauw, Lopik, Netherlands. This is a growing time series of datasets, updated every few months. 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.父数据集：IDRA气象雷达观测全量数据 本数据集针对荷兰洛皮克卡堡（Cabauw）地区的降雨与毛毛雨时空分布开展精细观测，观测仪器为IDRA（IRCTR毛毛雨雷达，IRCTR Drizzle Radar）。本数据集为持续更新的时序数据集，每数月更新一次。 观测仪器：位于卡堡CESAR（大气研究实验观测场，Cabauw Experimental Site for Atmospheric Research）的IDRA大气雷达。IRCTR搭建了高分辨率雷达系统IDRA（IRCTR毛毛雨雷达），用于精细观测降雨与毛毛雨的时空分布特征。该系统于2007年8月末部署于荷兰卡堡CESAR观测场内一座213米高的气象铁塔顶部。 该观测点位具备多重优势：其一，可降低地面杂波影响，提升观测灵敏度；其二，能够直接观测低层云与雾的水平分布特征；其三，观测场附近部署有其他仪器设备，通过多源观测数据的协同融合，可深化对大气物理过程的理解。 CESAR观测场其他仪器的观测数据可通过以下网址获取：{http://www.cesar-database.nl}。 IDRA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。本数据集所收录的观测数据可对科学界免费开放获取。