Drainage Basin Divide Water Flow Diagram. Main functions of a watersheddrainage basin iii. As shown the gradient of the stream can be determined by dividing the change in elevation between any two points rise by the distance between those two points run.
Precipitation falling on one side of a divide will flow into a different drainage basin than precipitation falling on the other side of a divide. Sun vegetation urban areas water. On rugged land the divide lies along topographical ridges and may be in the form of a single range of hills or mountains known as a dividing range.
The geographical area where all surface water converges to one location is called its drainage basin a delta forms at the mouth of a river where the velocity of the water flow decreases and deposition is highest.
A drainage basin is an area of land drained by a main river and its tributaries. On flat terrain especially where the ground is marshy the divide. For the streams investigated excellent correlations were found to exist between drainage area and the 23 year flood as well as between length of stream from the basin divide and drainage area. Water resources research 40 w05402 doi1010292003wr002583.