Quasi-six-year fluctuation in summer surface air temperatures in Japan
Quasi-six-year fluctuation in summer surface air temperatures in Japan
复制标题
日本夏季地表气温准六年波动
DOI：
10.2151/jmsj.81.1289
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发表时间：
2003
影响因子：
3.1
通讯作者：
K. Kurihara
中科院分区：
文献类型：
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作者：
K. Kurihara
日本夏季地表气温(以下简称夏季气温)中出现的高温(H1)，每隔4-6年出现一次。在大多数情况下，上半年之间的间隔时间为6年。日本夏季气温的这种波动(此后的准六年波动)在日本北部是明显的，但在日本的其他地区也可以看到，除了西南群岛。在这个周期的其他年份，夏季气温在日本北部也表现出以下特征：(I)低温出现在H1-2年(H1之前2年)和H1-1(H1之前1年)；(Ii)极低气温属于H1-1组；(Iii)温暖气温出现在H1+1(H1之后1年)，以及(Iv)低温出现在H1+2(H1之后2年)。6年的周期也出现在北太平洋海面温度的波动中(Saiki和Nagaka，1986年)。日本夏季气温的准6年周期波动与北太平洋海温波动的高度相关表明，这两个量之间存在着密切的联系。
High temperatures (H1), which appear at intervals of 4-6 years, have been noted in the summer surface air temperature (hereafter, referred to as summer temperature) in Japan. The interval between H1 years is 6 years in most cases. This fluctuation of summer temperature in Japan (quasi-six-year fluctuation, hereafter) is distinct in the northern part of the country, but it is also seen in other areas of Japan, except in the Southwest Islands. Summer temperatures for other years of the cycle, also show the following characteristics in Northern Japan: (i) cold temperatures appear in years of H1 - 2 (2 years before H1), and H1 - 1 (1 year before H1); (ii) years of extremely low temperature are included in the H1 - 1 group; (iii) warm temperatures appear in H1 + 1 (1 year after H1), and (iv) cold temperatures appear in H1+2 (2 years after H1). The period of 6 years also appears in fluctuations of sea surface temperature in the North Pacific Ocean (Saiki and Nagasaka 1986). High correlation between the quasi-6-year fluctuation of summer temperature in Japan, and fluctuation of sea surface temperature in the North Pacific Ocean, suggests that these two quantities are closely related.