【摘要】 本文从1968年12月—1978年11月十年逐月全球气温距平场的分布,研究七十年代全球气温变化的特征和我国东北夏季低温的问题。北半球的温度进入七十年代以来,仍然偏冷,没有明显的转暖。南半球偏暖。全球温度变化最大在赤道、南极和北极到北半球高纬度带,而且这些地区的变化先于其他地区,它们的变化有向外传递的现象。因此一个气温异常点的出现往往会影响到全球各个地带。我国东北地区冷夏或暖夏常是在全球气候异常的背景下出现的。更多还原

【Abstract】 Ill this paper, having analysed the monthly global air temperature departure fields from Dec., 1968 to Nov., 1978, we studied the characteristics of the global temperature and the summer cold disasters in the Northeast China. During 70’s, the northern hemisphere was still colder than the normal, while the southern hemisphere was warmer than the normal. The largest temperature variations occurred on the equator, the Antarctic and the, higher latitude belt of the northern hemisphere. The variation of temperature in these regions usually occurred prior to the other places of the world. It is found that the temperature variations occurred in these regions often propagate outwards. Thus, it is expected that when serious abnormal temperature appears in these regions, it will soon influence the other areas of the world. The cold or warm climate appeared in the Northeast China is consistent with the global abnormal climatic phenomenon.更多还原