呼和浩特市春季气象要素与空气质量指数的灰色关联分析

利用环保部门互联网公布的呼和浩特市2014年春季（3-5月）空气质量指数，及气象部门同步观测的有关气象要素数据，采用灰色关联方法分析探讨日平均风速、日平均地面温度、日平均水汽压、日平均气温、日平均相对湿度对呼和浩特市春季空气质量指数影响程度，从而为进一步做好空气污染气象条件预报及空气质量预报提供依据。结果表明，呼和浩特市2014年春季，各气象因素对空气质量指数影响程度从大到小排序依次为日平均风速、日平均相对湿度、日平均水汽压、日平均气温、日平均地面温度。

Grey Correlation Analysis on Influence of Meteorological Factors on Air Quality Index in the Spring of Hohhot

In order to provide the basis for air pollution meteorological condition and air quality forecast, the influence of meteorological factors, such as average daily wind speed, average daily ground temperature, average daily vapor pressure, average daily air temperature and average daily relative humidity, on the air quality index （AQI） was studied by grey correlation analysis based on the meteorological observation data collected by meteorological bureau and the AQI released by environmental protection department in the spring （from March to May） of Hohhot. The result showed that the meteorological factors were able to influence the AQI. The impact of the factors on the AQI was average daily wind speed〉average daily relative humidity〉average daily vapor pressure〉average daily air temperature〉average daily ground temperature.