Study of rainfall, runoff and water cycle for design.
Hydrology studies the water cycle: precipitation, evaporation, infiltration, runoff, groundwater. Data: rain gauges, radar, stream gauges. Statistical analysis (Gumbel, log-Pearson III) gives design floods for return periods (e.g. 100-year). Catchment properties control response.
A 100-year event has a 1% chance each year.
Hydrology provides the flood and water supply data that drive the sizing of drainage, dams and water systems.
Study of rainfall, runoff and water cycle for design.
Hydrology provides the flood and water supply data that drive the sizing of drainage, dams and water systems.
The area of land that drains to a common point, such as a river gauge or a dam site.
It shows how rainfall becomes runoff, infiltration and storage, which determines how much water is available and how much must be carried away.
Typical applications include estimating the design flood for a bridge over a river, predicting the water yield from a catchment for a reservoir and assessing the effect of urban development on runoff.
Study "Fire engineering" first (topic 73 of 112 in Civil & Structural). It covers the groundwork this topic builds on.
Intensity-duration-frequency curves. Hydrograph. Climate change effects.
A 100-year event has a 1% chance each year.
The next topic is "Rainfall-runoff analysis", which builds directly on this one.
It is classed as Intermediate in Civil & Structural (topic 74 of 112). It is an intermediate topic. Work through the beginner topics in Civil & Structural first.
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