Trend analysis of long-term change in annual mean equilibrium water temperature in Japan by mann-kendall test

Kohei Kamimura, Hitoshi Miyamoto

研究成果: Article査読

抄録

This paper analyzed the trend in long-term change in annual mean equilibrium water temperatures and air temperatures all over Japan for 50 years (1963-2012), and investigated their regional characteristics. To analyze the time series data of the temperatures, Mann-Kendall test was used to statistically detect the trend and Sen's slope was used to quantitatively evaluate its significance. The results showed that a tendency for temperature to rise in the equilibrium water temperature was common in the coastal part of the Pacific Ocean in the western part from the Kanto region. In these areas, a positive correlation was found in the rising tendency between the equilibrium water temperature and the air temperature. Furthermore, a trend towards lowering of temperature in the equilibrium water temperature was detected more often in the northern part of Tohoku and Kyushu regions as well as the coastal part of the Sea of Japan. In these areas, there was a negative correlation between the equilibrium water temperature and the air temperature.

本文言語English
ページ(範囲)154-160
ページ数7
ジャーナルJournal of Japan Society of Civil Engineers
8
1
DOI
出版ステータスPublished - 2020

ASJC Scopus subject areas

  • 環境工学
  • 土木構造工学

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