Hydrological characteristics and processes which operate in rivers and drainage basins.
Drainage basin and water divide is the area drained by a main river and its tributaries, bounded by a watershed. Components of a drainage basin are main stream, tributaries and distributaries, wetland and estuary (mouth of a river which is tidal), the exit of the basin (where the waters join another water body such as a river, lake, sea, or ocean). Watershed or water divide is an imaginary line that separates adjacent drainage basins. It is generally a highland or ridge or plateau.
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Your Tasks
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A. Draw annotated diagrams and explain.
B. Look carefully the 2nd diagram carefully and ‘describe‘ the characteristics of lake Mary.
C. Notice the 4th diagram and using this diagram only, describe three differences between the cross section of the upper and lower course of a river. (try to use the given words: Wider, narrower, deeper, more V shaped etc.)