Morphometric parameters  Formula/definition  References 
I. Drainage network 


1) Stream order (u)  Hierarchical rank  [10] 
2) No. of streams (N_{u})  N = N_{1} + N_{2} + ∙∙∙ + N_{n}  [7] 
3) Stream length (L_{u}) km  Lu = L_{1} + L_{2} + ∙∙∙ + L_{n} (km)  [3] 
4) Mean stream length (L_{sm}) km  L_{sm} = L_{u}/N_{u} (km)  [3] 
5) Stream length ratio (R_{L})  R_{L} = L_{u}/L_{u−1}, where L_{u} = the total stream length of order “u”, L_{u−1} = the total stream length of its next lower order  [7] 
6) Bifurcation ratio (R_{b})  R_{b} = N_{u}/N_{u+1}, where N_{u} = total no. of stream segments of order “u”, N_{u+1} = no. of segments of the next higher order  [8] 
7) Mean bifurcation ratio (R_{bm})  R_{bm} = average of bifurcation ratio of Strahler all orders  [10] 
II. Basin geometry 


8) Basin length (L_{b}) km  Length of the basin (km)  [7] 
9) Basin area (A) km^{2}  Plan area of the watershed (km^{2})  [7] 
10) Basin perimeter (P) km  Perimeter of the watershed (km)  [7] 
11) Form factor (ratio) (R_{f}) 
 [7] 
12) Elongation ratio (R_{e}) 
 [8] 
13) Shape factor (B_{s}) 
 [7] 
14) Lemniscate ratio (k)  K = L^{2}/4A  [48] [49] 
15) Circularity ratio (R_{c})  R_{c} = 4*π*A/P^{2}  [3] [50] 
16) Drainage texture (D_{t})  D_{t} = N_{u}/P, where N_{u} = Total no. Streams of all orders, P = perimeter (km)  [7] 
III. Drainage texture analysis 


17) Stream frequency (F_{s})  F_{s} = N_{u}/A  [7] 
18) Drainage density (D_{d}) km/km^{2}  D_{d} = L_{u}/A  [7] 
19) Drainage intensity (D_{i})  D_{i} = F_{s}/D_{d}  [55] 
20) Length of overland flow (L_{o}) km  L_{o} = 1/2 D_{d}  [7] 
IV. Relief characteristics 


21) Basin relief (B_{h}) or total relief (H) m  B_{h} = h − h_{1}, where, h = maximum height (m), h_{1} = minimum height (m)  [9] 
22) Relief ratio (R_{r})  R_{r} = H/L_{b}, Where H = total relief, L_{b} = basin length  [3] 
23) Ruggedness number (R_{n})  R_{n} = D_{d}*(B_{h}/1000)  [3] 
24) Dissection index (D_{is})  Dis = B_{h}/Ra, where R_{a} = absolute relief  [56] 
25) Hypsometric curve (HC)  HC is achieved by plotting the proportion of the total height (h/H) against the proportion of the total area (a/A) of the basin, where H is the total relief height, a is the total area of the basin above a given line of elevation h.  [2] [3] [38] 
26) Hypsometric integral (Hi)  , where = the weighted mean elevation H = maximum elevation h = minimum elevation  [2] [38] 