A hydrograph is a graph showing the rate of flow versus time past a specific point in a river, channel, or conduit carrying flow. The rate of flow is typically expressed in units of cubic meters per second (m³/s) or cubic feet per second (cfs).

Hydrographs are charts that display the change of a hydrologic variable over time. Here are several examples from the US Geological Survey's gaging station on the Tioga River near Mansfield, Pennsylvania. Although these examples are from a stream, hydrographs can also be made for lakes, water wells, springs and other bodies of water.

What is a hydrograph? A hydrograph is a graph that shows how the flow of a river changes over time. Hydrographs typically display the amount of water flowing in a river (known as the “discharge”) on the y-axis and time on the x-axis.

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2025年1月31日 · A hydrograph is a way of displaying water level information over time. A hydrograph plot may display stage, streamflow, and sometimes both. Hydrographs can be a helpful way to show water level observations and forecasts visually on a single graphic.

The unit hydrograph is a well-known, commonly-used empirical model of the relationship of direct runoff to excess precipitation.

2023年7月31日 · A hydrograph is a graph that displays water level data through time. For surface waters such as rivers and streams, data is commonly displayed as discharge (flow) or stage (height of the water level).

2023年6月1日 · A hydrograph is the graphical representation of the instantaneous rate of discharge (Q) of the stream plotted with respect to time (t). The response of a catchment area to a rainfall input as precipitation. 1. Components of Hydrograph. a. Rising Limb. It is the ascending portion of the hydrograph.

2014年8月2日 · The weather affects discharge so much that there’s a special graph that we can draw called a hydrograph which shows precipitation and discharge on the same graph and makes it easy to see how quickly precipitation affects the discharge of a river.

2024年7月9日 · What is a Hydrograph? A hydrograph is a graphical representation of the variation in water level or flow rate over time at a specific location. It is a fundamental tool in...