IDRA weather radar measurements - day 2014-04-29

Radar range: standard. Max rain level: weak rain. Parent item: IDRA weather radar measurements - month 2014-04 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：弱降雨。父数据集：IDRA气象雷达观测数据集——2014年4月。观测仪器：位于卡堡CESAR（卡堡大气研究实验站点，Cabauw Experimental Site for Atmospheric Research）天文台的IDRA大气雷达。IRCTR 已搭建高分辨率雷达系统IDRA（IRCTR 滴谱雷达），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月底安装在荷兰卡堡的CESAR天文台内一座213米高的气象铁塔顶部。该选址具备多重优势：其一，可降低地面杂波影响，提升观测灵敏度；其二，可直接观测低层云与雾的水平分布特征；其三，周边部署的其他观测仪器可通过协同融合观测数据，助力深化对大气物理过程的认知。CESAR天文台其他仪器的观测数据可通过访问{http://www.cesar-database.nl}获取。IDRA 可提供反射率、平均多普勒速度、多普勒谱宽等雷达参数，以及差分反射率、线性退极化比、差分相位常数等偏振参数的水平分布数据。所采集的数据集可对全球科学界免费开放获取。