Mathematical expressions of geomorphological parameters (Raju & Nagesh Kumar 2013)
Parameter . | Mathematical expression . | Units . |
---|---|---|
Basin length ![]() | ![]() | km |
Drainage density ![]() | ![]() | km−1 |
Bifurcation ratio ![]() | ![]() | No units |
Stream frequency ![]() | ![]() | km−2 |
Texture ratio ![]() | ![]() | km−1 |
Form factor ![]() | ![]() | No units |
Elongation ratio ![]() | ![]() | No units |
Circulatory ratio ![]() | ![]() | No units |
Parameter . | Mathematical expression . | Units . |
---|---|---|
Basin length ![]() | ![]() | km |
Drainage density ![]() | ![]() | km−1 |
Bifurcation ratio ![]() | ![]() | No units |
Stream frequency ![]() | ![]() | km−2 |
Texture ratio ![]() | ![]() | km−1 |
Form factor ![]() | ![]() | No units |
Elongation ratio ![]() | ![]() | No units |
Circulatory ratio ![]() | ![]() | No units |
A = Area of catchment (Km2); P = Perimeter of catchment (Km); L = Total length of stream segments of all orders (Km); Nu & Nu+1 = Number of streams of a given order u and u + 1; N′ = Total number of stream segments of all orders; N1 = Number of stream segments of first order.