Nowcasting methods and short term weather forecasts

临近预报方法和短期天气预报

• 批准号: 452994-2013
• 负责人: Taylor, Peter
• 金额: $ 1.82万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=541224
• 关键词: Nowcasting; methods; short; term; weather

Weather forecasting can cover a range of time scales and different techniques apply for different situations. In general, for forecasts more than 6-12 hours ahead, most reliance is placed on numerical weather prediction models such as the Environment Canada Global Environmental Mulitiscale Model (GEM) but for shorter lead times various "nowcasting" approaches are used, many based on observational data and estimates of translation velocity and development of areas of precipitation, storm cells and other features.

天气预报可以涵盖一系列时间尺度，不同的技术适用于不同的情况。一般来说，对于提前6-12小时以上的预报，大多数依赖于加拿大环境部全球环境多尺度模型（GEM）等数值天气预报模型，但对于较短的提前时间，则使用各种“临近预报”方法，其中许多方法基于观测数据和对降水区、风暴单体和其他特征的平移速度和发展的估计。