Knowra Red River Red River The Red River flows from China's Yunnan province through northern Vietnam and empties into the Gulf of Tonkin. Its sediment-rich waters have shaped the Red River Delta and supported Hanoi.
Red River Delta : A densely populated lowland formed by sediment deposited where the Red River and its distributaries meet the Gulf of Tonkin. The river's sediment builds this delta, the defining landscape of its lower course.
Red River floods : Seasonal inundations caused by high water in the Red River basin, especially during the summer monsoon. Monsoon rainfall raises the river rapidly and can overwhelm low-lying areas.
Hanoi : The capital of Vietnam, located on the right bank of the Red River in the northern part of the country. The river runs through Hanoi and has shaped the city's settlement and flood defenses.
Hong Bang dynasty : A legendary early Vietnamese dynasty traditionally associated with the Văn Lang polity. Later traditions place its homeland in the Red River region, though its historicity is disputed.
Yuan River : A river in Yunnan, China, that joins the Nanxi River to form the upper Red River. This upper-course river contributes to the Red River's flow before it crosses into Vietnam.
Red River dikes : Embankments built along the Red River and its delta to limit flooding and protect settlements and farmland. These barriers constrain floodwaters along the river's densely settled lower course.
Rice production in Vietnam : The cultivation of rice across Vietnam, including intensive farming in the Red River and Mekong deltas. Red River alluvium and irrigation support dense rice cultivation in the north.
Đại Việt : The name of a Vietnamese polity and kingdom used from the tenth century until the nineteenth century. Its historic centers developed in the Red River region, where the river supported agriculture and political power.
Nanxi River : A river in Yunnan, China, that joins the Yuan River near the China–Vietnam border to form the Red River. Its confluence with the Yuan River marks the formation of the Red River.
Monsoon : A seasonal reversal of winds that brings pronounced wet and dry periods to many parts of Asia. Summer monsoon rainfall drives much of the Red River's seasonal rise.
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