Table 2 Morphometric parameters and their mathematical formula

Stream frequency (F)

F = N_u/A

Horton (1945)

Stream density (D) km/km²

D = L_u/A

Horton (1945)

Basin area (A) km²

GIS software Analysis

Schumm (1956)

Circularity ratio (R_c)

R_c = 4πA/P²

Strahler (1964), Miller (1953)

Weighted mean R_b (R_bw)

R_bW = Σ[R_bu: u + 1*(N_u + N_u-1)]/ΣN

Strahler (1952)

Overland Flow (OLF)

OLF = 1/2D

Horton (1945)

Basin relief (H)

H = H_Max − H_min

Hadley and Schumm (1961)

Basin length (L_b) km

GIS software Analysis

Schumm (1956)

Mean Gradient (MG)

MG = H/L_b

Strahler (1964)