Radar Studies of Clouds and Precipitation

9407074 Srivastava这项工作的目标是雨滴和云滴的结构和（大小）光谱的演变。前者的特征，包括降雨率和含水量，将利用两台雷达的观测数据，以不同的频率发射，并评估衰减以“提高”后向散射反射率。另一方面，将利用最近的数值结果来研究云滴光谱的特征，以改进现有的理论和使用甚高频雷达在选定地点测量云滴光谱。这两个主题都有助于理解（液体）降水的物理性质。

9407074 Srivastava The objectives of this work are the structure and evolution of the (size) spectra of both raindrops and cloud drops. Characteristics of the former, including rain rate and water content, will be explored using observations from two radars, transmitting at different frequencies, and evaluating the attenuation to "improve" the backscattered reflectivity. Characteristics of cloud drop spectra, on the other hand, will be investigated using recent numerical results to improve existing theory and the use of VHF radar to measure droplet spectra at selected sites. Both topics will help to understand the physics of (liquid) precipitation.