大连市2010年气候特征及影响评估

Climatic Features of Dalian and Assessment on Their Impact in 2010

利用大连市7个观测站1971～2010年气象资料,分析2010年的气候特征及影响评估。结果表明,全市平均年降水量显著偏多,气温偏低,日照异常偏少,相对湿度和雷暴日正常,大风日偏少,大雾日偏多,无霜期偏长。气象灾害较多,年内发生持续低温、雪灾、海冰、冰雹、大雾、暴雨、大风、雷电等主要天气气候事件,给农业、林业、水资源、水产养殖业、交通和旅游等行业造成一定的影响。降水时空分布不均匀,且低温寡照,农业收成正常,气候上属于一般年景。

By using meteorological data of seven observation stations in Dalian City during 1971-2010,the climate features and influence evaluation in 2010 were analyzed.The results showed that the annual average rainfall were significantly more,temperature was lower,sunlight time was exceptional less,relative humidity and number of days with thunderstorm were normal,gale days were less,heavy fog days were more,average frost-free period was longer than the conventional year.The meteorological disasters were more,which included sustained low temperature,snow damage,sea ice,hail,heavy fog,rainstorm,strong wind and thunderstorm and lightning,etc.These main climate events had some influence on industry businesses which included agriculture,forestry,water resources,aquaculture,transport and tourism.The temporal-spatial distribution of average annual precipitation was uneven,the average annual temperature was lower and sunlight was abnormal less.So agricultural crop was normal which belonged to generic yield on climate.