安徽农业科学2011，Vol.39Issue(11)：6614-6615,6660,3.
大连市近59年日照时数变化特征分析
Analysis of Climate Characteristics of Sunshine Hours in Dalian City in Recent 59 Years
赵冬艳 1谷苹1
作者信息
- 1. 辽宁省大连市气象局,辽宁大连116001
- 折叠
摘要
Abstract
[ Objective ] The aim was to analyze the changes characteristics of sunshine hours of Dalian City. [ Method] Based on the data of sunshine hours of Dalian City during 1951 to 2009 and by dint of linear estimation and accumulation anomaly, the change characteristics of decade, annual, seasonal, monthly sunshine hours in Dalian City were analyzed. [ Result] The change characteristics of decade, annual, seasonal, monthly sunshine hours in Dalian City were in a decrease trend since recent 59 years. The average sunshine hour in 1950s was the maximum one. Since 21 century, the annual sunshine hour was the lowest one. Annual average sunshine hours were the highest in 1978, and lowest in 2003. There were more sunshine hours before 1989 and later less. Among the four seasons, the sunshine hours in autumn decreased fastest and slowest in spring. The monthly average sunshine hours were the most in May and least in December; the sunshine hours in each month decreased fastest in July. It showed increasing tendency only in March. [ Conclusion ] The study supplied scientific reference for the reasonable utilization of light energy, agricultural production structure and sustainable development of agricultural economy.关键词
日照时数/变化特征/大连市Key words
Sunshine hours/ Change characteristics/ Dalian City分类
天文与地球科学引用本文复制引用
赵冬艳,谷苹..大连市近59年日照时数变化特征分析[J].安徽农业科学,2011,39(11):6614-6615,6660,3.
