用车贝雪夫多项式作中国西南雨季降水场预报

Forecasting the Precipitation Distribution of Southwest of China with Chebyshev Polynomials

用车贝雪夫多项式展开方法对 196 1～ 1995年西南雨季 (5～ 10月 )降水资料及 196 1～ 1996年 9月至次年 2月印度洋海温资料进行分析 ,再利用逐步回归的统计方法 ,建立了印度洋海温场与西南雨季降水场的预报方程 .通过对 1996及 1997年预报结果的检验 ,效果较为理想 .

With the calculation method of Chebyshev Polynomials,analyzing the precipitation data of Southwest of China on 5—10 in 1961～1995 and the Indian Ocean surface temperature data on September to February of next year in 1961—1996.And with stepwise regression statistics method,setting up a system of forecast equations between the Indian Ocean surface temperature and the Southwest of China.Through the forecast test of the rainy season of the Southwest of China in 1996～1997,the result is satisfactory.