IDRA weather radar measurements - day 2016-03-25

Radar range: standard. Max rain level: moderate rain. Parent item: IDRA weather radar measurements - month 2016-03 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。父数据集项：IDRA气象雷达观测数据集——2016年3月。观测仪器为位于荷兰卡堡CESAR（卡堡大气研究实验场，Cabauw Experimental Site for Atmospheric Research）观测场的IDRA大气雷达。IRCTR研发了这套高分辨率雷达系统，命名为IDRA（IRCTR毛毛雨雷达，IRCTR Drizzle Radar），旨在精准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市CESAR观测场内一座213米高的气象塔塔顶。该选址具备多项显著优势：其一，地面杂波影响得以削弱，雷达灵敏度显著提升；其二，可直接观测低层云与雾的水平分布特征；其三，周边布设的其他观测设备可与本系统协同融合观测数据，助力科研人员深入解析大气物理过程。CESAR观测场其他仪器的观测数据可通过链接{http://www.cesar-database.nl}获取。IDRA雷达可输出反射率、平均多普勒速度、多普勒谱宽等常规观测参数，以及差分反射率、线性退偏振比、差分相移率等偏振观测参数，涵盖气象要素的水平分布信息。所采集的全部数据均对全球科学界免费开放。