齐齐哈尔地区蒸发量与气象因子间灰色关联分析

Grey correlation analysis for evaporation capacity and meteorological factors in Qiqihar area

为探讨齐齐哈尔地区蒸发量与影响蒸发的主要气象因子之间的关系,文中利用齐齐哈尔气象站1963—2010年E20小型蒸发皿蒸发量、日照时数、降水量、风速、气温、相对湿度、水汽压等气象资料,采用灰色关联度方法对影响蒸发的主要气象因子进行统计分析。结果表明:齐齐哈尔地区蒸发与气温和降水量等气象因子关系比较密切,与蒸发量的关联度顺序为气温>降水量>日照时数>水汽压>相对湿度>风速。

For discussing the correlation between the evaporation capacity and the major meteorological factors affecting evaporation in Qiqihar area, based on the meteorological data of evaporation capacity with E20-small evaporation pan, sunshine duration, precipitation amount, wind speed, temperature, relative humidity, water vapor pressure from 1963 to 2010 for the Qiqihar meteorological station,the grey correlation method is adopted to statistic and analyze the major meteorological factors affecting the evaporation. The results showed that the evaporation capacity is closely related with temperature and precipitation amount in Qiqihar area, the influence factors in sequence are temperature, precipitation, sunshine duration, water vapor pressure, relative humidity and wind speed.