IDRA weather radar measurements - day 2012-09-28

Radar range: standard. Max rain level: moderate rain. Parent item: IDRA weather radar measurements - month 2012-09 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.

雷达探测量程：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——2012年9月。观测仪器：位于荷兰卡鲍市CESAR（Cabauw Experimental Site for Atmospheric Research）天文台的IDRA大气雷达。IRCTR已搭建一套高分辨率雷达系统IDRA（IRCTR Drizzle Radar），旨在对降雨与毛毛雨的时空分布开展精细化观测。该系统于2007年8月底部署于荷兰卡鲍市CESAR天文台内一座213米高的气象塔塔顶位置。该选址具备多重优势：其一，地面杂波影响得以削弱，有效提升系统观测灵敏度；其二，可直接观测低层云与雾的水平分布特征；其三，站点周边配套的其他观测设备可通过协同融合多源观测数据，助力科研人员深入解析大气物理过程。CESAR天文台其他观测设备的数据集可通过以下网址获取：{http://www.cesar-database.nl}。IDRA可提供反射率、平均多普勒速度、多普勒谱宽等雷达回波参数，以及差分反射率、线性退极化比、差分相移率等偏振参数的水平分布数据。所采集的观测数据面向全球科研群体免费开放共享。