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根据周口市1971—2003年地面气象观测资料统计分析了周口市灰霾天气的变化特征,并从地形气候、气象要素和城市化发展等角度,探讨了周口市灰霾天气频发的原因。结果得出:周口市灰霾日数的年代变化非常明显,且存在着显著的季节性差异,受周口市地形特点、气候条件、气象要素和城市化进程发展的影响,灰霾天气的发生频率和持续时间都呈持续增长的趋势。
Based on the ground meteorological observation data from 1971-2003 in Zhoukou City, the change characteristics of haze weather in Zhoukou City were statistically analyzed. The causes of frequent haze weather in Zhoukou City were discussed from the aspects of terrain climate, meteorological elements and urbanization. The results show that the annual variation of the haze days in Zhoukou is very obvious, and there are significant seasonal differences. Due to the influence of the terrain characteristics, climate conditions, meteorological elements and the development of urbanization in Zhoukou, the occurrence frequency of haze and The duration has shown a sustained growth trend.