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Position: Home > Articles > Precipitation Variation Characteristic Analysis in the Main Flood Season of Western Liaoning JOURNAL OF NINGXIA AGRICULTURE AND FORESTRY SCIENCE AND TECHNOLOGY 2013,54 (4) 113-114,124

辽宁西部主汛期降水变化特征分析

作  者:
孙奇;谢华光;宗英飞
单  位:
辽宁省朝阳市龙城区气象局
关键词:
辽宁西部;主汛期;线性趋势;周期变化;突变
摘  要:
利用统计学分析方法对辽宁西部代表站1953—2010年主汛期降水量进行研究。结果表明,辽宁西部地区主汛期降水量存在显著的减少趋势,气候倾向率为-12.56mm/10a,存在8~9年的周期变化和18年的准周期变化。1980年主汛期降水量发生显著突变,突变之后降水量减少了12.5%。非汛期降水量变化较平稳,有微弱的增加趋势。
译  名:
Precipitation Variation Characteristic Analysis in the Main Flood Season of Western Liaoning
作  者:
SUN Qi et al.(Long City Meteorological Bureau of Chaoyang City,Liaoning Province,Chaoyang,Liaoning 122000)
关键词:
Western Liaoning;Main flood season;Linear trend;Periodic change;Mutation
摘  要:
Using statistical analysis methods,precipitation variation characteristion in main flood season of western Liaoning in 1953—2010 was studied.The results showed that:precipitation in main flood season of western Liaoning significantly reduced and climate tendency rate was-12.56 mm/10a,and existed the periodic variation of 8-9a and the quasi-periodic changes of 18a.Precipitation in main flood season occurred significant mutations in 1980,precipitation decreased by 12.5% after the mutation.Precipitation change in non-flood season was relatively stable,and had slightly increasing trend.

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