Quantitative relationship between SOI and observed precipitation in southern Korea and Japan by nonparametric approaches
Quantitative relationship between SOI and observed precipitation in southern Korea and Japan by nonparametric approaches
复制标题
DOI：
10.1016/j.jhydrol.2004.06.026
复制
发表时间：
2005-01
影响因子：
6.4
通讯作者：
Young-Hoon Jin;A. Kawamura;K. Jinno;R. Berndtsson
中科院分区：
文献类型：
--
作者：
Young-Hoon Jin;A. Kawamura;K. Jinno;R. Berndtsson
一些研究试图将南方涛动指数（SOI）与韩国和日本观测到的降水联系起来。但迄今为止，尚未发现SOI与该地区降水之间存在明确的关系。在本研究中，分类 SOI 用于揭示对韩国釜山和日本福冈月降水量的定量和统计显着影响。月降水量数据转换为立方根和非超标概率时间序列。分类 SOI 和转换降水之间的相关性通过 Kendall 的 τ 和 Pearson 的 r 计算。结果表明，使用这两种方法时，存在显着的相关性。在两个站点的“强拉尼娜”类别（SOI>2）下，滞后时间为 4 个月，获得了 1% 水平的显着相关性。结果表明，韩国南部和日本南部地区位于相同或非常接近的SOI影响范围内。
Several studies have tried to link southern oscillation index (SOI) and observed precipitation in Korea and Japan. However, so far no clear relationship between the SOI and the precipitation in the area has been found. In the present study, categorized SOI are used to reveal quantitative and statistically significant influence on monthly precipitation at Busan in Korea and at Fukuoka in Japan. Monthly precipitation data were transformed to cubic root and nonexceedance probability time series. Correlation between the categorized SOI and transformed precipitation was calculated by Kendall's τ and Pearson's r. The results show that significant correlation is at hand when using both approaches. Significant correlation at the 1% level was obtained with lag time of 4 months under the ‘Strong La Niña’ category (SOI>2) at both stations. The results show that southern Korea and southern parts of Japan are located in the same or very close influence range of SOI.