What is a graph that illustrates the increase of a river's discharge during and after a storm?

A storm hydrograph is specifically designed to show the changes in a river's discharge in response to precipitation events over time. During a storm, rainfall causes an increase in water flow into the river, which is reflected as a rise in discharge on the graph.

The storm hydrograph typically features two main components: the rising limb, which depicts the increase in discharge as the storm progresses, and the falling limb, which shows the decline in discharge as the storm subsides and the runoff decreases. Additionally, the peak discharge point is highlighted to indicate the maximum flow the river experiences during that storm event.

In comparison, while a hydrograph can display similar information, it may not be as focused specifically on storm events, thus making it broader in context. Other terms like lag graph and peak discharge chart do not directly represent the specific aim of showing discharge response to a storm; instead, they focus on narrower aspects of discharge data.