Analisi di sensibilità sull'effetto della risoluzione di DEM, utilizzando LAPSUS5 per modellare erosione e sedimentazione nel Bacino del Sabinal (Spagna) e analisi comparativa tra diversi bacini.

The resolution of Digital Elevation Models (DEM) plays a crucial role in landscape evolution modelling, particularly concerning erosion and sedimentation processes. This study employs the LAPSUS5 model to investigate the impact of DEM resolutions and extent on erosion and sedimentation, focusing on six key parameters: erodibility, sedimentiability, annual rainfall, discharge exponent, slope exponent, and flow convergence factor. By conducting simulations with varying parameter values across different DEM resolutions and extent, including original and aggregated versions, the study explores the responses of the Sabinal catchment. While erosion responses generally show higher sensitivity in coarser resolutions, deposition behaviours are more variable, with unique responses for each parameter. In sequent Comparative catchment analysis with the same range of DEM resolutions to different extents reveals differing behaviours, although the outcome shows higher consistency but again suggesting that each DEM's response is unique, necessitating further studies to understand the specific relationships between DEM resolution and erosion/deposition processes for higher accuracy in Landscape evolution modelling.