城市空气质量数值预报方法研究

Study on the Method of Urban Air Quality Numerical Forecasting

城市空气质量数值预报,在时空分辨率和预报客观性方面具有明显优势,是未来城市空气质量预报的主要发展方向。以济南市为例,探索建立了一套较为成熟的城市空气质量数值预报方法。该方法采用高分辨率对流层化学模式系统为预报模式基础,同时根据济南市特点对模式系统进行修正,取得了较好的预报效果。此外,该模式系统由于能够较为准确地模拟城市范围内污染物的时空分布,在城市空气污染防治规划方面具有较为广泛的应用前景。

Urban air quality forecasting used on high space-time resolution and forecasting objectivity, will be widely applied to the near future. In this paper, according to Jinan air quality numerical forecasting process to build a preferable method which was based on high-resolution tropospheric chemical model system, and modified with Jinan local characteristics, such as wind field, turbulence field, terrain, etc. The experimental results showed that the method has good efficiency and satisfied accuracy. In addition, because the model system can correctly simulate space-time distribution of pollutants, it has a wide application foreground to urban air pollution prevention planning.