广东近四十年来气候跃变特征分析

An Analysis of the Climatic Jump of Guangdong in Recent Forty Years

用Yamamot方法，计算了广东8个测站近40年来的气温、降水、日照量在春、夏、秋、冬季、冬、夏半年和全年的跃变参数序列，通过分析得到：3种气候要素最明显的跃变都主要发生在1980年前后．尤其是广州、深圳、肇庆等站特别明显。日照量的跃变信息在各个时段都较气温、降水量明显得多，其春季又较其他时段的跃变明显；气温跃变最强时期在夏季；降水跃变在各时段没有太大差别，且较日照和气温量的跃变都弱得多。

The paper analyzed the climatic jump of Guangdong in recent years by means of Yamamot Parameter. The results can be concluded that:① The evident jump signals in most of the stations happen about 1980 in the fields of the rainfall, temperature and sunshine, particularly in Guangzhou, Shenzhen and Zhaoqing.②The sunshine jump signals in all periods, which are four seasons, winter and summer half year, whole year, are thecleariest in three climatic dements. Temperature signals are next to. The spring jump signal of sunshine is the strongest in all periods. The strongest signal of temperature occurs in summer. The rainfall signals almost are the same in all periods and are weaker than the other climatic elements.