| Popis: |
Naturally bank erosion is a severe problem to any fluvial system. The Haora River is also experiencing severe bank erosion in several parts of its course. Thus the BEHI model has been selected and applied in 60 spots (both left and right banks) along the Haora River (within its Indian territory) as the standard method for estimating bank erosion. From the estimated data, it is found that among the 60 spots, 8 spots are falling in very high erosion category, 13 spots in high category, 22 spots in moderate category, 11 spots in low category and 6 spots in very low category of erosion rate. Finally this method is compared with field generated erosion data, and it is found that models’ accuracy level is exact in 55 % cases, but the result of this model is acceptable for 76.7 % cases. |
