嵌套网格空气质量预报系统及其在沈阳地区的初步应用

Nested Air Quality Prediction Modeling System and its primary use in Shenyang

嵌套网格空气质量预报系统作为中国第三代区域多尺度空气质量模型,充分借鉴吸收了国际上成熟的天气预报模式、空气污染数值预报模式的优点,并体现了中国各区域、城市的地理、地形环境、污染源的排放等特点.模型能够在沈阳市很好的应用,并模拟出冬季重污染个例和夏季的轻污染个例,SO2的模拟效果略好,PM10的模拟结果偏低.造成偏低的原因主要有三个方面:污染源数据、污染物比例和模式内部参数.

The Nested Air Quality Prediction Modeling System(NAQPMS) is the third generation of Chinese regional multi-scale air quality model.NAQPMS absorded international mature weather forecast model and numerical prediction model.NAQPMS embodied the characteristics of chinese geography and emission.The system worked successfully in Shenyang.We chosed two special air pollution cases in different seasons and simulated them with NAQPMS.The result showed that the trend of SO2 and PM10 was similar with observation,but the concentration was lower,especially the PM10.Then we found out three reasons of this phenomenon and want to solve the problem to make this system do more contribution in controlling air pollution in Shenyang in the future.