松山平野における降水量日変化の時空間特性  [in Japanese] SPACE-TIME CHARACTERISTICS OF DIURNAL RAINFALL VARIATION IN MATSUYAMA PLAIN  [in Japanese]

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Author(s)

    • 藤本 雅人 FUJIMOTO Masato
    • 愛媛大学大学院 理工学研究科生産環境工学専攻 Ehime university Graduate School of Science and Engineering Civil and Environmental Engineering
    • 渡部 桂子 WATANABE Keiko
    • 愛媛大学 工学部環境建設工学科 Ehime university Faculty of Engineering Department of Civil and Environmental Engineering
    • 森脇 亮 MORIWAKI Ryo
    • 愛媛大学准教授 理工学研究科生産環境工学専攻 Ehime university Asscoiate Professor Graduate School of Science and Engineering Civil and Environmental Engineering

Abstract

We investigated the diurnal rainfall variation in Matsuyama plain using datasets from AMeDAS, MLIT, and local government. The evening maximum precipitation is especially remarkable in the inland region and along a river. It is known that a river is street of wind for land and sea breezes. Sea breeze would contribute to an increase in the water vapor content over inland regions through the moist air advection from coastal regions. During the period of 1980-2009, the time when the morning maximum precipitation appears shift two hours later every ten years. Similarly, the offshore land breeze is getting more significant at the rate of 200 ms-1h every ten years.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 67(4), I_451-I_456, 2011

    Japan Society of Civil Engineers

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