River basin authorities in Italy have recently published new political and technical standards that require updating flood zoning maps by applying two-dimensional flood models. Two-dimensional simulations represent an effective tool for floodplain managers to improve the prediction and management of flood hazards for those areas where the loss of channel conveyance results in large unconfined overland flow with extensive floodwave attenuation. After a brief review of existing regulations in Italy, a real case study is presented, involving Lazio Region Basin Authority, in which the original flood maps, based on the implementation of a 1D river flow simulation, have been updated by using results of a 2D flood model utilizing the new flood map regulations.
Updating flood maps using 2D models in Italy: A case study
Nardi F;
2009-01-01
Abstract
River basin authorities in Italy have recently published new political and technical standards that require updating flood zoning maps by applying two-dimensional flood models. Two-dimensional simulations represent an effective tool for floodplain managers to improve the prediction and management of flood hazards for those areas where the loss of channel conveyance results in large unconfined overland flow with extensive floodwave attenuation. After a brief review of existing regulations in Italy, a real case study is presented, involving Lazio Region Basin Authority, in which the original flood maps, based on the implementation of a 1D river flow simulation, have been updated by using results of a 2D flood model utilizing the new flood map regulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
