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JDR Vol.14 No.9 pp. 1337-1345
(2019)
doi: 10.20965/jdr.2019.p1337

Paper:

Spatial Characteristics of Flooded Areas in the Mun and Chi River Basins in Northeastern Thailand

Shingo Zenkoji*,†, Shigehiko Oda**, Taichi Tebakari*, and Boonlert Archevarahuprok***

*Graduate School of Engineering, Toyama Prefectural University
5180 Kurokawa, Imizu, Toyama 939-0398, Japan

Corresponding author

**Project Management Department, Energy Business Division, NIPPON KOEI Co., Ltd., Tokyo, Japan

***Thai Meteorological Department, Bangkok, Thailand

Received:
April 26, 2019
Accepted:
September 25, 2019
Published:
December 1, 2019
Keywords:
flood, rainfall, RRI model, Thailand
Abstract

The objectives of this study are to conduct an analysis on rainfall change tendencies, calculate the inundation in the basins of Mun and Chi Rivers in the northeastern region of Thailand, and clarify the flood risk in the long term, taking the spatial characteristics of flooding into consideration. To grasp the rainfall change tendencies, two statistical analyses are conducted using the Mann-Kendall test and the generalized extreme value distribution. The inundation analysis is conducted using the Rainfall-Runoff-Inundation (RRI) model. As a result of the statistical analysis on the rainfall characteristics, it can be observed that the annual rainfall has significant increasing tendencies at the significance level of 5% in a wide area of the upper reaches. In addition, inundation calculation indicates that the maximum inundation depth and inundation area have increased in recent years.

Cite this article as:
S. Zenkoji, S. Oda, T. Tebakari, and B. Archevarahuprok, “Spatial Characteristics of Flooded Areas in the Mun and Chi River Basins in Northeastern Thailand,” J. Disaster Res., Vol.14, No.9, pp. 1337-1345, 2019.
Data files:
References
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Last updated on Dec. 10, 2019