Question
Describe the various drainage patterns.
Solution
The streams within a drainage basin form certain patterns, depending on the slope of land, underlying rock structure as well as the climatic conditions of the area.
These are:
These are:
(i)Dendritic - The dendritic pattern develops where the river channel follows the slope of the terrain. The stream with its tributaries resembles the branches of a tree, thus the name dendritic.
(ii)Trellis - A river joined by its tributaries, at approximately right angles, develops a trellis pattern. A trellis drainage pattern develops where hard and soft rocks exist parallel to each other.
(iii)Rectangular - A rectangular drainage pattern develops on a strongly jointed rocky terrain.
(iv)Radial patterns - The radial pattern develops when streams flow in different directions from a central peak or dome like structure.
(ii)Trellis - A river joined by its tributaries, at approximately right angles, develops a trellis pattern. A trellis drainage pattern develops where hard and soft rocks exist parallel to each other.
(iii)Rectangular - A rectangular drainage pattern develops on a strongly jointed rocky terrain.
(iv)Radial patterns - The radial pattern develops when streams flow in different directions from a central peak or dome like structure.
