Digital elevation models (DEMs) are considered an imperative tool for many 3D visualization
applications; however, for applications related to topography, they are exploited mostly as a …

A first assessment of the TanDEM-X DEMs over Brazilian territory is presented through a
comparison with SRTM, ASTER GDEM and ALOS AW3D30 DEMs in seven study areas with …

This article examines how the methods and data sources used to generate DEMs and
calculate land surface parameters have changed over the past 25years. The primary goal is …

This work presents the selection of a set of geostatistical coefficients suitable for a unified
SRTM data refinement from 3 ″to 1 ″through kriging over the entire Brazilian territory. This …

Rockfall poses risk to people, their properties and to transportation ways in mountainous
and hilly regions. This catastrophe shows various characteristics such as vast distribution …

Abstract The LiDAR-derived Canopy height model (CHM), due to its wide applications in
forestry, is important for foresters. Before a CHM can be considered a valuable, objective …

Land use impacts are commonly quantified and compared using 2D maps, limiting the scale
of their reported impacts to surface area estimates. Yet, nearly all land use involves …

This paper examines the effect of raster cell size on hydrographic feature extraction and
hydrological modeling using LiDAR derived DEMs. LiDAR datasets for three experimental …

Accurately detecting single trees from LiDAR data requires generating a high-resolution
Digital Surface Model (DSM) that faithfully represents the uppermost layer of the forest …

Flooding in urban streams can occur suddenly and cause major environmental and
infrastructure destruction. Due to the high amounts of impervious surfaces in urban …