This research work focuses on the investigation of the Z-R relationship impact on weather radar rainfall estimates, through the correlation of a X-Band weather radar estimates and rain gauge measurements in the region of Attica, Greece. The methodology followed in this work is performed into two sections, where first, a framework is applied in order to access the raw rainscanner datasets and convert them into a compatible form for comparison, since the radar measurements consist of gridded reflectivity values of 2-min temporal scale, whereas the rain gauge measurements pertain to 10-min point precipitation measurements. Secondly, a statistical analysis is performed, regarding the spatial variability of the Z-R relationship for a single event. Specifically, four Z-R relationships are used and compared based on the correlation with the actual rain gauge measurements, for each station, and the results are then shown upon the study area. The results provide with important findings about the spatial distribution of the optimal Z-R relationship based upon the proximity of the stations to the weather radar location, the coastline and station elevation.

这项研究工作的重点是通过希腊阿提卡地区的 X 波段天气雷达估计和雨量计测量结果的相关性，调查 ZR 关系对天气雷达降雨估计的影响。这项工作中遵循的方法分为两个部分，首先，应用一个框架来访问原始rainscanner 数据集并将它们转换为兼容的形式进行比较，因为雷达测量由 2 分钟的网格反射率值组成时间尺度，而雨量计测量与 10 分钟点降水测量有关。其次，对单个事件的 ZR 关系的空间变异性进行统计分析。具体来说，使用四种 ZR 关系，并根据与每个站点的实际雨量计测量值的相关性进行比较，然后将结果显示在研究区域上。结果提供了关于基于站与天气雷达位置、海岸线和站高程的接近度的最佳 ZR 关系空间分布的重要发现。