Modelling of a Post-Mining Catchment for Future Simulations

Landform evolution modelling (LEM) provides an avenue for simulating how a landscape may evolve over extended time periods of thousands years. CAESAR-Lisflood LEM which includes hydrologic model (TOPMODEL) and hydraulic (Lisflood) can be used to assess the proposed final landform morphology mine site by would 1000-year period. The accuracy future simulations depends on calibration validation past present events. Calibration involve finding combination parameters when applied simulated gives outputs similar those observed real scenario corresponding input data. Calibrating sediment output at catchment level using it studying equilibrium conditions is area that has yet explored. Therefore, aim this study was calibrate then validate it. To achieve this, run rainfall event with set parameters, plus discharge data point catchment, analyse behave compared catchment. were adjusted until closely approximated values validated running different events checking gave results values. outcomes demonstrated while calibrated greater extent hydrology (discharge output) throughout year, slightly improved via ability change take into account seasonal vegetation growth during start end wet season. This important designing testing post-mining rehabilitated systems movement in biomes.