[热点综述]2008年11月中旬以来,我国北方地区主要受大风降温天气影响,冷气团途经北方南下时,未在此形成锋面,没有大的降雪天气出现,但北方地区随之被纳入到强大的亚洲高压势力范围之中,天气干冷程度是近年来少见的。我国冬麦区降水量明显偏少,旱 [Summary of Hot Topics] Since mid-November 2008, the northern part of our country was mainly affected by the cool weather with strong winds. When the cold air mass went south through the north, no frontal and no large snowfall occurred during this period. However, the northern part of the country was subsequently incorporated into the powerful Among the high-voltage forces in Asia, the degree of dryness and weather is rare in recent years. China's winter wheat area rainfall was significantly less drought