Central angle (deg.) | Shape of river |
Undifined or zero | Straight |
0 < α ≤ 41 | Semi Meander |
41 < α ≤ 85 | Undeveloped meande |
85 < α ≤ 158 | Developed meander |
158 < α ≤ 296 | More developed meander like river |
Up to 296 | River ox-bow (serpentine arc) |