丹东地区最低和最高气温与高空温度相关性分析

Correlation Analysis of the Minimum and Maximum Temperature and Upper Air Temperature in Dandong area

利用T639的高空温度预报结果,分析丹东地区4个站点不同月份850和925 h Pa温度与最低、最高气温的相关性。结果表明,最低气温与850 h Pa温度的相关性好于925 h Pa温度,南部地区的相关性好于北部地区;最高气温与925 h Pa温度的相关性明显好于850 h Pa温度,北部地区的相关性明显好于南部地区。相关系数的季节差异比较明显,干冷季节(秋冬季)的相关性明显好于暖湿季节(春夏季)。

The correlation of 850 hPa and 925 hPa temperature with the minimum and maximum temperature in four stations in Dandong area was analyzed by using T639 ＇s high altitude temperature prediction. The results showed that the correlation between the minimum temperature and 850 hPa temperature was better than that of 925 hPa temperature ,and the correlation of southern region was better than that of northern region. The correlation between the maximum temperature and 925 hPa temperature was better than that of 850 hPa,and the correlation of northern region was better than that of southern region. The seasonal difference of correlation coefficient was obvious, the correlation of dry season （ autumn and winter） was better than that of warm season （ spring and summer）.