Definitions for "Hydrograph"
A graph that shows the change of a water-related variable over time. Example: A stream discharge hydrograph shows the change in discharge of a stream over time.
A graph showing stage, discharge, or other property of a river with respect to time.
A plot of flow (typically in a stream) versus time. The time base is variable so that a hydrograph can refer to a single flood event, to a combination of flood events, or alternatively to the plot of all flows over a month, year, season or any given period.
An instrument used to measure and record humidity.