利用常规气象观测资料、高空资料以及NCEP 1°×1°6 h分析资料，对2012年6月中旬河南省持续性高温天气进行分析。结果表明：①这次河南地区持续的高温天气是在稳定的大气层结下，高层受强西北气流控制，中低层层有强而持久的暖中心与之配合产生的；②地面场上河南省处于南高北低的气压场，有利于偏南风向北输送暖空气，促进该地区高温天气的形成；③从物理量上看，中低层暖平流对地面增温、辐散下沉、绝热增温以及干燥的水汽条件都是促进此次高温天气过程的重要因素。%By using of conventional observation data,altitude information and the NCEP 1° ×1° 6 hour data,the case of sustained hot temperatures weather in Henan in mid-June 2012 is analyzed. The results showed as follows:①On the basis of the stable atmospheric stratification,the sustained hot temperatures weather in Henan is controlled by the strong northwest flow in high altitude,with a strong and long-lasting warm center in low layers.②On the ground field,Henan Province is in the pressure field whose south higher than the north,and the southerly winds is conducive to transport warm air to northward,promoting hot temperatures weather in the Henan region formed.③From the view of physical quantities,the warm advection of the middle and lower forcing the ground temperature increasing,divergence sinking,adiabatic warming and the dry moisture conditions are all important factors for promoting the process of hot temperatures weather.
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