Spatio-temporal analysis of snowfalls from the cloud to the ground surface using radar and lidar from the cloud to the ground surface

雷达测量降水是基于雷达反射率因子Z和降雨率R之间的关系。为了确定降雪的Z-R关系，必须在短时间间隔内高精度地独立测量Z和R。检查雪粒特性(形状、速度、密度等)也很重要。雪花和雪花的区分。在本研究中，提出了降雪特性评价的综合测量系统。各种测量设备集中在一个地方，允许雷达和激光雷达扫描低层大气进行大范围的降雪观测。

Radar measurements of precipitation are based on the relation between the radar reflectivity factor Z and precipitation rate R. In order to determine the Z-R relationship for snowfall, Z and R have to be measured independently with high accuracy within a short time intervals. It is also important to examine snow particle characteristic (shape, velocity, density, etc.) distinguish between snowflakes and graupels.In this research, the integrated measurement system for snowfall characteristic evaluation is presented. Various measurement utilities are gathered in one place to allow the snowfall observation on the wide scale by the radars and lidars scanning the lower atmosphere.