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Key TermsPeak rainfall: the highest or heaviest period or rainfall.
Peak discharge: the maximum discharge in the river. Lag time: the time difference between the peak rainfall and the peak discharge of the river. Rising limb: the rising flood water in the river. Falling limb: the falling flood water in the river. Base flow: the normal flow of the river. Read through your notes, then have a go at the questions below to test your knowledge. Use the answers to mark your work:
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