摘要
通过对绵阳市近500年来气候分析,发现气候干湿变迁有200年、20年等周期性。并用灰色系统的原理与方法,对本市干旱年景进行了预测,指出1992年前后,可能是本市解放以来第七个干旱年。
Mianyang's clamite date in the past 500 years was analysed in this report,It was found that the drought and dampness of Mianyang had a periodical change of 200 or 20 years etc,and predicded that in or hy 1992,there would be a 7th drought year in mianyang.
关键词
干旱
发生规律
预测
灰色系统
Drought and dampness time
Grey system
Drought
