安徽农业科学2012，Vol.40Issue(32)：15804,15863,2.
贺州市近54年降水变化特征分析
Variation Characteristics Analysis of the Precipitation in Hezhou City in Recent 54 Years
孙小龙 1廖铭超1
作者信息
- 1. 广西贺州市气象局,广西贺州 542800
- 折叠
摘要
Abstract
Based on the time series precipitation data from 1957 to 2010 in Hezhou, linear regression, curve fitting and wavelet transform were used to analyze the variation trend and periodic law of precipitation. In recent 54 years, the precipitation in Hezhou changed in volatility. The change within the year and inter year was obvious, and its amplitude was large. The precipitation increased in recent 54 years, and its trend rate was 7.266 mm/10a. There were two significant periodic variations of the precipitation. One was the inter-decadal periodic variation about 16 -18 a, the other was the inter-annual periodic variation about 8 -9 a. And the periodic shock of about 17 a was the strongest.关键词
贺州/降水/变化特征/小波分析Key words
Hezhou/ Precipitation/ Variation characteristics/ Wavelet analysis分类
农业科技引用本文复制引用
孙小龙,廖铭超..贺州市近54年降水变化特征分析[J].安徽农业科学,2012,40(32):15804,15863,2.
