Question

A downstream flood is characterised by ___________:

1) lots of flooding but little destruction.
2) a large, slow rise in discharge at a particular location.
3) a large, rapid rise in discharge at a particular location.
4) little or no warning.
5) a rapid rise in discharge at all locations.

Answer 1

A downstream flood is characterized by a large, slow rise in discharge at a particular location, allowing for more predictability compared to flash floods.

Step-by-step explanation:

A downstream flood is characterized by a large, slow rise in discharge at a particular location. This type of flooding occurs when excess water from rain or snowmelt travels along the river and results in increased volume and water level downstream. Unlike flash floods, which can occur with little or no warning and rise rapidly, downstream floods can often be predicted and monitored through the use of stream gauges and weather forecasting. Historic events such as the highly unusual crest of the river in 1479 demonstrate the impacts that both high and low-frequency flooding events can have on communities.