精品文档---下载后可任意编辑雷达反射率因子间接同化在飑线数值模拟中的应用的开题报告摘要：台风和飑线等强天气事件对人类造成的损失严重，因此建立准确的数值预报模式具有重要意义。反演雷达资料反射率因子，是讨论飑线的重要手段之一。而反演过程中存在较大误差，因此需要将反演结果与数值模拟结果结合起来进行同化，以提高预报准确度。本文将重点讨论雷达反射率因子间接同化在飑线数值模拟中的应用，尝试利用同化技术准确预报飑线发生的时间、位置、路径以及强度。关键词：雷达反射率因子；同化；飑线数值模拟；预报准确度Abstract:Typhoons and squalls cause serious losses to human beings, so it is of great significance to establish accurate numerical forecasting models. Inverting the radar data reflectivity factor is one of the important methods to study squalls. However, there are large errors in the inversion process, so it is necessary to combine the inversion results with numerical simulation results for assimilation to improve the forecast accuracy. This paper will focus on the application of indirect assimilation of radar reflectivity factor in squall numerical simulation, and try to use assimilation technology to accurately predict the time, location, path and intensity of squall occurrence.Keywords: radar reflectivity factor; assimilation; squall numerical simulation; forecast accuracy
