The formula to calculate the Bifurcation Ratio (Rb) is:
\[ R_b = \frac{N_n}{N_{n+1}} \]
Where:
The bifurcation ratio is a dimensionless number that describes the branching pattern of a river or stream network. It is calculated by dividing the number of streams of a given order by the number of streams of the next higher order. This ratio provides insight into the hierarchical structure and efficiency of the drainage network. A lower bifurcation ratio indicates a more branched network, while a higher ratio suggests a more linear or less branched network. Understanding the bifurcation ratio is important in hydrology and geomorphology for analyzing the behavior and characteristics of river systems.
Consider an example where:
Using the formula to calculate the Bifurcation Ratio:
\[ R_b = \frac{12}{4} = 3 \]
This means that the bifurcation ratio for this network is 3, indicating that there are three times as many streams of order n compared to streams of order n+1.