SPACE-TIME CHARACTERISTICS OF DIURNAL RAINFALL VARIATION IN MATSUYAMA PLAIN

• FUJIMOTO Masato

  Ehime university Graduate School of Science and Engineering Civil and Environmental Engineering

• WATANABE Keiko

  Ehime university Faculty of Engineering Department of Civil and Environmental Engineering

• MORIWAKI Ryo

  Ehime university Asscoiate Professor Graduate School of Science and Engineering Civil and Environmental Engineering

Bibliographic Information

Other Title

• 松山平野における降水量日変化の時空間特性

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

Keywords

• Hourly precipitation
• Total rainfall amount
• Matsuyama plain
• Diurnal variation

Details

• CRID: 1390282680330073472
• NII Article ID: 130004557613
• DOI: 10.2208/jscejhe.67.i_451
• ISSN: 2185467X
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed