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中文摘要: 本文利用1911—1989年近80年的我国气温等级资料,对我国异常冬暖的时空变化及其环流特征进行了分析。结果表明:全国性异常冬暖年的出现具有明显的阶段性,主要集中在40年代和近10年期间。在冬暖区域分布上,以西北、长江和华南一带地区的冬暖尤为显著。就区域性异常冬暖而言,东北区和华南区出现异常冬暖年的几率最大,西南区几率最小。80年代以来,我国北方地区异常冬暖出现的年份显著增多,尤其是东北地区。其环流特征主要表现在北半球西风带以超长波3波为主,亚洲上空距平场分布为稳定的西低东高型。
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Abstract:Based on the data of the temperature grades in China (1911-1989) ,analysis on spatial-temporal variation of the anomalous warm winter(AWW) in China and the general circulation features in the NorthernHemisphere is made.It is found that the AWW years mainly occur in theperiod of 1940's and last 10 years with different cyclic stages. Especiallyobvious AWW appears in the regions of Northwest China, Changjiang River Basin and South China. During the last 10 years, the AWW probability takes place most frequently in the region of Northeast China and South China, while rather rarely in the region of Southwest China.The years of AWW have significantly increased in the north of China since 1980's, especially in the region of Northeast China. And the general circulation of the Northern Hemisphere is characterized by the westerly belt here, which appears mainly in Wave 3 and by the anomalous field over Asia, which is lower in west and higher in east.
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引用文本：
赵汉光,张桂森,1989.我国异常冬暖的时空变化及其环流特征的分析[J].气象,15(11):15-20.
,1989.Analysis on spatial-temporal variation of the anomalous warm winter in China and the general circulation features in Northern Hemisphere[J].Meteor Mon,15(11):15-20.
赵汉光,张桂森,1989.我国异常冬暖的时空变化及其环流特征的分析[J].气象,15(11):15-20.
,1989.Analysis on spatial-temporal variation of the anomalous warm winter in China and the general circulation features in Northern Hemisphere[J].Meteor Mon,15(11):15-20.