Variation in morphology of the Red river and Duong river near Hanoi from 2000 to 2018

Abstract

In recent years, the construction of upstream reservoirs and the extraction and structural construction activities on the river banks and beds have caused downstream changes in river morphology and hydrological regime of the Red river system, which has especially accelerated from 2000 to 2018. These dramatic variations have significantly changed the morphological characteristics and relationship between the flow and morphology that are a fundamental parameter to evaluate the stability of the channels. In this study, the morphological characteristics and relationship between flow and morphology over some periods as well as under current conditions were analysed. This work provides basic river training parameters for studying river training planning of the Red river system in general and for the Red and Duong river sections in Hanoi in particular.