Development of a numerical short range forecast model of fog and visibility

雾和能见度数值短期预报模型的开发

• 批准号: 5415080
• 负责人: Professor Dr. Andreas Bott
• 金额: --
• 依托单位: Abteilung Meteorologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5415080?language=en
• 关键词: Development; numerical; short; range; forecast

In the proposed research project a numerical short range forecast model of fog and visibility shall be developed. The fog model will be based on the Local Model (LM) of the German Weather Service. It will be three-dimensional so that different kinds of fog, such as radiation fog, advection fog, and orographic fog, can be simulated. In a first step a microscale version of the LM will be developed and a detailed spectral microphysical cloud module will be implemented therein. Based on this module a new parameterization scheme for fog will be developed. By utilizing available data of measured fog episodes, numerical case studies will be performed in order to verify the spectral microphysical as well as the parameterized fog model. The aim is to obtain a tool for a numerically efficient fog forecast at locations which are favourable for fog formation and where a high quality fog forecast is of particular importance, e.g. at airports, highways etc. Parts of this research are embedded in the COST 722 Action "Short range forecasting methods of fog, visibility and low clouds" of the European Commission.

在拟议的研究项目中，将开发雾和能见度的数值短期预报模式。雾模式将以德国气象局的当地模式(LM)为基础。它将是三维的，因此可以模拟不同类型的雾，如辐射雾、平流雾和地形雾。在第一步中，将开发一个微型版本的月球探测器，并将在其中实施一个详细的光谱微物理云模块。在此基础上，提出了一种新的光纤陀螺参数化方案。利用已有的实测雾事件资料，将进行数值个例研究，以验证谱微物理和参数化雾模式。其目的是在有利于雾形成和高质量雾预报特别重要的地点获得一种数字有效的雾预报工具，例如在机场、高速公路等。这项研究的部分内容被嵌入到欧盟委员会的COST 722行动“雾、能见度和低云的短期预报方法”中。