Understanding the Impact of Drainage Basin Characteristics on Flood Risk

Size and shape of the drainage basin

The larger the catchment area, the greater the potential amount of water that could end up in the river

The shape may affect how quickly water enters the river channel

<p>Drainage density refers to the pattern of channels and the total length of streams in a drainage basin</p> Signup and view all the answers

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<p>Size and shape of a drainage basin are just two of the factors that might influence flood risk. The larger the catchment area the greater the potential amount of water that could end up in the river. The shape may affect how quickly water enters the river channel but both will be influenced by drainage density.</p> Signup and view all the answers

<p>The larger the catchment area, the greater the potential amount of water that could end up in the river, increasing the flood risk.</p> Signup and view all the answers

<p>The shape of a drainage basin may affect how quickly water enters the river channel, potentially influencing flood risk.</p> Signup and view all the answers

<p>Drainage density refers to the amount of stream channel length per unit area in a drainage basin. It can influence flood risk by affecting how quickly water is able to flow through the basin.</p> Signup and view all the answers

<p>Candidates are free to develop their own approach to the question, but essays that address the question and support their argument with relevant examples will be credited.</p> Signup and view all the answers