Hyetograph in Civil Engineering

Hyetograph is a graphical representation of rainfall intensity versus time. It is an important tool used in hydrology and water resources engineering to analyze and design stormwater management systems.

Rainfall Intensity vs Time

The hyetograph shows the intensity of rainfall on the y-axis and time on the x-axis. The intensity of rainfall is measured in millimeters per hour or inches per hour. The time scale can be in minutes, hours, or days.

Importance of Hyetograph

Hyetograph is important because it helps in designing drainage systems, flood control structures, and water supply systems. It is also used to estimate the amount of water that can be collected for future use.

Cumulative Rainfall vs Time

Cumulative rainfall is the amount of rainfall that has fallen at a particular location over a certain period of time. Cumulative rainfall can be represented on a graph with time on the x-axis and cumulative rainfall on the y-axis.

Rainfall Depth vs Duration

Rainfall depth is the amount of rainfall that has fallen at a particular location over a certain period of time. This can be represented on a graph with time on the x-axis and rainfall depth on the y-axis. The duration can be in minutes, hours, or days.

Discharge vs Time

Discharge is the volume of water flowing in a river or stream at a particular point in time. It can be represented on a graph with time on the x-axis and discharge on the y-axis.

Conclusion

In summary, the hyetograph is a graphical representation of rainfall intensity versus time. It is an important tool used in hydrology and water resources engineering to analyze and design stormwater management systems. It helps in designing drainage systems, flood control structures, and water supply systems.