IDRA weather radar measurements - day 2014-10-13

Radar range: standard. Max rain level: moderate rain. Parent item: IDRA weather radar measurements - month 2014-10 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：中雨。父数据集：IDRA气象雷达观测数据——2014年10月。观测仪器：荷兰卡堡CESAR（Cabauw大气研究实验站，Cabauw Experimental Site for Atmospheric Research）观测站内的IDRA大气雷达。IRCTR已搭建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月底部署在荷兰卡堡的CESAR观测站内一座213米高的气象塔塔顶。该选址具备多项优势：其一，可通过削弱地面杂波的影响提升观测灵敏度；其二，可直接观测低层云与雾的水平分布；其三，周边部署的其他观测仪器可通过协同整合观测数据，助力研究者深入理解大气物理过程。CESAR观测站内其他仪器的观测数据可通过网址{http://www.cesar-database.nl}获取。IDRA可提供反射率（reflectivity）、平均多普勒速度（mean Doppler velocity）、多普勒谱宽（Doppler spectrum width）以及差分反射率（differential reflectivity）、线性退极化比（linear depolarization ratio）、比差分相位（specific differential phase）等偏振参数的水平分布数据。本数据集所采集的观测数据面向科研群体免费开放。