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- A cross-section of a river is a vertical slice taken perpendicular to the direction of water flow.
- It provides a two-dimensional representation of the river's channel and the surrounding topography.
- The cross-section includes information about the river's width, depth, shape, and slope.
- It also shows the distribution of sediment and vegetation within the river channel.
- Cross-sections are commonly used to study river morphology, hydraulics, and sediment transport.
Long profile of a river:
- A long profile of a river is a graphical representation of the elevation of the river's surface along its entire length.
- It provides a one-dimensional view of the river's slope and gradient.
- The long profile shows how the river's elevation changes from its source to its mouth.
- It also highlights changes in the river's gradient and the location of waterfalls, rapids, and pools.
- Long profiles are commonly used to study river erosion, landscape evolution, and river network analysis.