hydrograph
Sign in to saveAlso known as hydrogram
thumb|upright=1.2|A stream hydrograph. Increases in stream flow follow rainfall or [[snowmelt. The gradual decay in flow after the peaks reflects diminishing supply from groundwater.]]
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- Hydrographs
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Article
10 sectionsContents
- Terminology
- Types
- Baseflow separation
- Unit hydrograph
- Subsurface hydrology hydrograph
- Raster hydrograph
- Lag-1 hydrograph
- See also
- References
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thumb|upright=1.2|A stream hydrograph. Increases in stream flow follow rainfall or [[snowmelt. The gradual decay in flow after the peaks reflects diminishing supply from groundwater.]]
A hydrograph is a graph showing the rate of flow (discharge) 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 often relate changes of precipitation to changes in discharge over time. The term can also refer to a graph showing the volume of water reaching a particular outfall, or location in a sewerage network. Graphs are commonly used in the design of sewerage, more specifically, the design of surface water sewerage systems and combined sewers.