Learn what a hydrograph shows, how to read discharge, flood peak, time lag and the receding limb, and what makes the shape steep or gentle.
By the end, you can
identify the main parts of a hydrograph and explain how catchment conditions change its shape.
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Read a River Hydrograph
A graph that predicts a flood
A hydrograph is how hydrologists answer the question everyone downstream wants answered: the rain has fallen — when does the river rise, and how high? 🌊
It is also very examinable, because every feature on it has a name and a reason. Once you can read the shape, you can explain the catchment that produced it.
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Read a River Hydrograph
LCA-2026-••••••••
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Read a River Hydrograph
R19 · 12 min · certificate
