A group of students are investigating downstream changes in river channel characteristics. They planned to measure the cross-sectional area of the channel at a downstream site using a standard 1-metre wading rod and tape measure. However, they find that the river at this location is over 1.6 metres deep and the current is too strong to safely wade across.
State one way they could adapt their fieldwork methodology to safely obtain accurate channel depth measurements to calculate the cross-sectional area at this site.
125 exam-style questions on Edexcel A GCSE Geography Investigating physical environments (rivers or coasts). Each one has a worked solution and a mark scheme showing where the marks go.