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张东凌, 何卷雄, 左瑞亭, 曾庆存. 季风指数及其年际变化Ⅱ.南海夏季风分量动能强度指数及其年际变化[J]. 气候与环境研究, 2005, 10(3): 333-341. DOI: 10.3878/j.issn.1006-9585.2005.03.07
引用本文: 张东凌, 何卷雄, 左瑞亭, 曾庆存. 季风指数及其年际变化Ⅱ.南海夏季风分量动能强度指数及其年际变化[J]. 气候与环境研究, 2005, 10(3): 333-341. DOI: 10.3878/j.issn.1006-9585.2005.03.07
ZHANG Dong-Ling, HE Juan-Xiong, ZUO Rui-Ting, ZENG Qing-Cun. Monsoon Index and Its Inter-annual Variability Part Ⅱ: The Kinetic Energy Index and Its Inter-annual Variability in South China Sea Summer Monsoon Region[J]. Climatic and Environmental Research, 2005, 10(3): 333-341. DOI: 10.3878/j.issn.1006-9585.2005.03.07
Citation: ZHANG Dong-Ling, HE Juan-Xiong, ZUO Rui-Ting, ZENG Qing-Cun. Monsoon Index and Its Inter-annual Variability Part Ⅱ: The Kinetic Energy Index and Its Inter-annual Variability in South China Sea Summer Monsoon Region[J]. Climatic and Environmental Research, 2005, 10(3): 333-341. DOI: 10.3878/j.issn.1006-9585.2005.03.07

季风指数及其年际变化Ⅱ.南海夏季风分量动能强度指数及其年际变化

Monsoon Index and Its Inter-annual Variability Part Ⅱ: The Kinetic Energy Index and Its Inter-annual Variability in South China Sea Summer Monsoon Region

  • 摘要: 计算了各年南海夏季风建立前后流场的场相似度、场比幅、季风分量动能强度指数和突变度.指出按变差度最大或相似度绝对值最小及其变化最陡以及比幅最小,可客观定量地定出季风来临的预兆日期,在大多年份该日期比用天气气候学方法得到的季风来临(爆发)日期要早些,且两者有较好正相关.绝大多数年份季风建立时有环流突变发生,但也有少数年份呈调和变化或二次突变.季风分量动能强度指数能够反映各年南海夏季风建立后的强度.最后分析指出,南海850hPa夏季风的前兆日期,突变度和强度指数都有明显的年际和年代际变化.

     

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