LIDAR RAFVG 2017-2020 relief altimeter models

0.50 m pitch regular knitting high-rise models obtained from the point clouds of the LIDAR surveys of the FVG region carried out between 2017 and 2020. For further details please refer to the dataset “News Points LIDAR RAFVG 2017-2020”.The following DEM are available:- DSM first return: it is the regular grating obtained from the first laser pulse to represent the trend of the following surfaces: open terrain, top of artifacts and buildings, top surface of the point cloud in areas with response to multiple echoes — DSM last return: it is the digital model of the surface obtained from the last echo of the impulse. Includes particularly dense and impenetrable laser building, artefacts and vegetation, open soils and the bottom surface of the point cloud in areas with multiple adeco response — DTM: mathematical representation of the development of the terrain without vegetation and without edified, by means of an ordered grid of plano-altimetrically determined points- DBM: regular grid that shapes the trend of the soil without vegetation with the edified.It must be obtained from the filtering of the “DSM-last return”.