DONATE

IAHR Document Library


« Back to Library Homepage « Proceedings of the 19th IAHR APD Congress (Hanoi, 2014)

The Analysis of the Time-Series Variation of Hydrological Data in the Middle, Lower Mekong River Basin

Author(s): Kazumitsu Muraoka; Koji Asai

Linked Author(s): Koji Asai

Keywords: Mekong River; Hydrology; Discharge; Precipitation; Lao PDR

Abstract: Economic growth of the Greater Mekong Subregion has been drastically increasing in the past few years. Especially as the role of the Mekong River and its tributaries is becoming more important, therefore the evaluation of hydrological data will be necessary for infrastructure development in the future. The time-series variation of long term hydrological data such as daily precipitation and discharge which are available in the Mekong River Commission was evaluated by using the method of regression analysis, excess threshold analysis and probability analysis. As a result, the annual precipitation and the average of discharge have been on a declining trend in southern region of the Lao PDR especially rainy season. On the other hand, the average of discharge in the tributary which has hydro power dam such as NamN gum, Sekong, Sedone has been increasing trend in the dry season. It is also understood that fluctuation range of flood and drought discharge is increasing compare with last 40 years.

DOI:

Year: 2014

Copyright © 2024 International Association for Hydro-Environment Engineering and Research. All rights reserved. | Terms and Conditions