IDRA weather radar measurements - day 2012-01-13

Radar range: standard. Max rain level: moderate rain. Parent item: IDRA weather radar measurements - month 2012-01 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——2012年1月。观测仪器：位于荷兰卡堡CESAR（Cabauw Experimental Site for Atmospheric Research，大气研究卡堡实验场）观测站内的IDRA大气雷达。IRCTR搭建了一套高分辨率雷达系统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月底部署在荷兰卡堡的上述观测站内一座213米高的气象塔塔顶。该选址具备多项优势：其一，地面杂波影响得以削弱，提升了系统探测灵敏度；其二，可直接观测低层云与雾的水平分布特征；其三，周边搭载的其他观测设备可通过协同整合观测数据，助力研究者更深入理解大气物理过程。CESAR观测站其他设备的观测数据可通过{http://www.cesar-database.nl}获取。IDRA系统可输出反射率（reflectivity）、平均多普勒速度（mean Doppler velocity）、多普勒谱宽（Doppler spectrum width）的水平分布，以及差分反射率（differential reflectivity）、线性退极化比（linear depolarization ratio）、特定差分相位（specific differential phase）等极化观测参数。本数据集采集的观测数据可向全球科研社区免费开放获取。