用机载多普勒雷达资料进行三维风场解析反演──I.多重解析多普勒方法在机载雷达情况下的推广及模拟验证

Analytical Retrieval of 3-D Wind Field from Airborne Doppler Radar Data Part I: Extension of MANDOP Method to Airborne Doppler Radar Data Analysis Through Simulated Data

多重解析多普勒（ＭＡＮＤＯＰ）方法是用解析表达式进行三维风场反演。它成功地应用于处理地基多普勒雷达资料，获取对流系统层状降水区域的风场结构。本文将ＭＡＮ－ＤＯＰ方法在机载雷达情况下的进行推广并通过模拟研究径向速度测量中信号噪声、雨滴降落速度估计误差、平流速度估计误差、尤其是由于机载特性的引入产生的雷达束定位误差等对方法的影响。模拟结果显示，在机载雷达的技术参数下，ＭＡＮＤＯＰ方法能够提供误差可以接受的三维风场反演。

Mesoscale phenomena such as tropical squall lines were studied for years with more and more sophisticated experimental facilities, in particular meteorological Doppler radars. A new generation of such radars is presently being developed, namely airborne systems which allow for studying the life cycle of the observed phenomena. A further progress in airborne Doppler radars is their equipment with dual-beam antennas, allowing the retrieval of wind and reflectivity fields in the same conditions as from dual ground-based Doppler radars. On the other hand, MANDOP analysis was developed by Scialom and Lemaitre to study the dynamic structure of precipitating systems from ground-based Doppler radar data and applied to FRONT 84 and FRONT 87 experiments data set within stratiform precipitation. In this context, this paper consists in adapting the method to airborne Doppler radar data and validating it through simulations.