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The cross profile of a river refers to a section taken sideways across the river channel or valley. There are two main types: Channel Cross Profile: Includes only the river itself. Valley Cross Profile: Encompasses the river channel, the valley floor, and the slopes of the valley sides.
Learn about and revise river processes, including erosion, transportation and deposition, with GCSE Bitesize Geography (AQA).
Revision notes on Changing River Shape for the AQA GCSE Geography syllabus, written by the Geography experts at Save My Exams.
Rivers shape the land through erosion, transportation and deposition. These processes create distinctive landforms. In the upper course, vertical erosion creates waterfalls and v-shaped valleys...
The time to cross the river is dependent upon the velocity at which the boat crosses the river. It is only the component of motion directed across the river (i.e., the boat velocity) that affects the time to travel the distance directly across the river (80 m in this case).
Revision notes on 2.2.3 River Processes for the CIE IGCSE Geography syllabus, written by the Geography experts at Save My Exams.
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The velocity of the boat, v boat v boat, is 0.75 m/s in the y y-direction relative to the river and the velocity of the river, v river v river, is 1.20 m/s to the right. Strategy. We start by choosing a coordinate system with its x x-axis parallel to the velocity of the river, as shown in Figure 3.43.
