The extra rainfall would increase the river's speed and erosion power. Such a river is classed as being in spate (a term for a sudden flood in a river). Such an increase could result in flooding, especially in the lower reaches, on what is the river's flood plain.
An increase in Rainfall.....
The river would flood cities near the Mississippi River.
One physical factor that can increase a river's discharge is heavy rainfall, which leads to more water flowing into the river. This can cause the river to overflow its banks and increase its discharge. Another factor is snowmelt, where melting snow adds more water to the river, increasing its flow. Lastly, changes in the topography or geology of the river basin can alter the river's discharge by affecting how quickly water is able to flow into the river.
It is simply called rainfall
Increase in rainfall or snowmelt, leading to more water entering the river. Steeper gradient or slope along the river's path, allowing water to flow faster. Removal of obstructions such as rocks or debris that can impede the river's flow.
9ft
129mm
The Mississippi River's watershed area, and rainfall.
The vast majority of rainfall is upstream, with virtually no rainfall in Sudan or Egypt.
Rainfall can increase runoff by adding more water to the surface of the ground. If the ground is already saturated or impermeable, the excess water cannot infiltrate and will instead flow over the surface, causing runoff. Factors like soil permeability, slope of the land, and vegetation cover can also influence runoff.
none
Tides as far up river as Teddington Lock and heavy rainfall in the rest of the river.