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黄嘉佑, 符长锋. 黄河中下游地区夏季逐候降水量的低频振荡特征[J]. 大气科学, 1993, 17(3): 379-383. DOI: 10.3878/j.issn.1006-9895.1993.03.16
引用本文: 黄嘉佑, 符长锋. 黄河中下游地区夏季逐候降水量的低频振荡特征[J]. 大气科学, 1993, 17(3): 379-383. DOI: 10.3878/j.issn.1006-9895.1993.03.16
Huang Jiayou, Fu Changfeng. The Representations of the Low-frequency Fluctuation for the Pentad Precipitation in Summer in the Middle–Lower Reaches of the Yellow River Valley[J]. Chinese Journal of Atmospheric Sciences, 1993, 17(3): 379-383. DOI: 10.3878/j.issn.1006-9895.1993.03.16
Citation: Huang Jiayou, Fu Changfeng. The Representations of the Low-frequency Fluctuation for the Pentad Precipitation in Summer in the Middle–Lower Reaches of the Yellow River Valley[J]. Chinese Journal of Atmospheric Sciences, 1993, 17(3): 379-383. DOI: 10.3878/j.issn.1006-9895.1993.03.16

黄河中下游地区夏季逐候降水量的低频振荡特征

The Representations of the Low-frequency Fluctuation for the Pentad Precipitation in Summer in the Middle–Lower Reaches of the Yellow River Valley

  • 摘要: 本文使用主分量分析黄河中下游地区(河南省)68站1982—1987年夏季(6—8月)逐侯降水量的主要时空特征,并用非整波技术分析所提取的第一主要分量频谱分布的低频振荡特点.分析结果表明该地区降水主要低频振荡周期为6—12候(30—60天)月际振荡及季问振荡15—24候(75—120天).它们年际变化有准两年振荡,其中月际低频振荡与赤道地区的纬向风准两年周期振荡有同相关系.

     

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