The present paper discusses the first results of the sensitivity to roughness of a two-dimensional hydrodynamic to simulate flooding in particularly low lying areas. In such areas ,which lack well defined morphological boundaries , the characteristics and variation of the vegetation cover could also significantly influence the extent and hydraulic characteristics of the flood. This research is envisaged as the first step of a study of roughness characterization of the Lucanian Ionic coastal plain in relation to the type of cultivation present, based on data collected by a terrestrial laser-scanner. Such an analysis will lead to a reduction in uncertainties in the identification of flood risk linked to approximations in the choice of the roughness coefficient of the flood plain.
SENSITIVITY ANALYSIS TO ROUGHNESS FOR THE ASSESSMENT OF FLOOD HAZARD IN LOWLAND AREAS
SOLE, Aurelia;GIOSA, LUCIANA;CANTISANI, Andrea
2010-01-01
Abstract
The present paper discusses the first results of the sensitivity to roughness of a two-dimensional hydrodynamic to simulate flooding in particularly low lying areas. In such areas ,which lack well defined morphological boundaries , the characteristics and variation of the vegetation cover could also significantly influence the extent and hydraulic characteristics of the flood. This research is envisaged as the first step of a study of roughness characterization of the Lucanian Ionic coastal plain in relation to the type of cultivation present, based on data collected by a terrestrial laser-scanner. Such an analysis will lead to a reduction in uncertainties in the identification of flood risk linked to approximations in the choice of the roughness coefficient of the flood plain.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
