东亚季风El Niño与中国松辽平原夏季低温关系初探

THE RELATIONSHIP AMONG EAST ASIA SUMMER MONSOON EL NIO AND LOW TEMPERATURE IN SONGLIAO PLAINS NORTH EAST CHINA

中文关键词:  东亚季风  El Niño  松辽平原  夏季低温

英文关键词:East Asiamonso on  El Niño  Song liao Plain  Low temperature in summer

中文摘要:

      分析了1951～1995年东亚夏季风、El Niño与中国松辽平原的代表站长春站夏季农作物生长期(5～9月)气温关系,结果表明:20世纪50～70年代,东亚夏季风偏弱,El Niño增温始于上半年,长春夏季多气温偏低或有低温冷害发生;1980～1995年,东亚夏季风偏强,即使El Niño增温始于上半年,当年长春夏季气温多为稍高到偏高,次年夏季气温稍低,但不致出现偏低和低温冷害。初步分析了典型El Niño年OLR季内振荡特征,研究了El Niño,OLR季内振荡、东亚夏季和冬季风对松辽平原夏季低温影响的某些成因。

英文摘要:

      The relationship among East Asia summer monsoon, El Niño and low temperature in Song liao Plain North East China from May to September in 1951-1995 are analysed. In 1950-1970's when East Asia summer monsoon was weak and El Niño temperat ure going up started in the first half a year the low temperature or cool injury in Songliao Plain would take place. During 1980-1995 when East Asia summer monsoon was strong even El Niño temperat uregoing up started in the first half a year the high temperature in Song liao Plain in summer would takepace in the same year and the temperature in Song liao Plian in summer would be lower in the nextyear but there was no cool injury. The oscill ation OLR in typical El Niño year has been analy sed too. The relationship among El Niño, oscill ation of OLR, East Asia summer monsoon, winter monsoon and the low temperature in Song liao Plain North East China has also been studied.