Results 11 to 20 of about 255,255 (303)

Method for Measuring the Information Content of Terrain from Digital Elevation Models

open access: yesEntropy, 2015
As digital terrain models are indispensable for visualizing and modeling geographic processes, terrain information content is useful for terrain generalization and representation.
Lujin Hu   +3 more
doaj   +1 more source

Hydrographic Basins Analysis Using Digital Terrain Modelling [PDF]

open access: yesIOP Conference Series: Materials Science and Engineering, 2017
The paper, emphasis the link between digital terrain modelling and studies of hydrographic basins, concerning the hydrological processes analysis. Given the evolution of computing techniques but also of the software digital terrain modelling made its presence felt increasingly, and established itself as a basic concept in many areas, due to many ...
Pişleagă Mihaela   +3 more
openaire   +1 more source

Effective Identification of Terrain Positions from Gridded DEM Data Using Multimodal Classification Integration

open access: yesISPRS International Journal of Geo-Information, 2018
Terrain positions are widely used to describe the Earth’s topographic features and play an important role in the studies of landform evolution, soil erosion and hydrological modeling.
Ling Jiang   +5 more
doaj   +1 more source

Unmanned Aerial Vehicle (UAV) for monitoring soil erosion in Morocco [PDF]

open access: yes, 2012
This article presents an environmental remote sensing application using a UAV that is specifically aimed at reducing the data gap between field scale and satellite scale in soil erosion monitoring in Morocco. A fixed-wing aircraft type Sirius I (MAVinci,
D'Oleire-Oltmanns, Sebastian   +3 more
core   +1 more source

Soil-terrain modelling and erosion analysis at field scale level, a case study

open access: yesSoil and Water Research, 2009
Pedometrical methods and digital soil mapping represent a progressive approach to the evaluation of various terrain-related soil processes. A detailed digital terrain model was used for the analysis of erosion - sedimentation situation and description of
Tereza Zádorová   +2 more
doaj   +1 more source

Fast approximation of visibility dominance using topographic features as targets and the associated uncertainty [PDF]

open access: yes, 2003
An approach to reduce visibility index computation time andmeasure the associated uncertainty in terrain visibility analysesis presented. It is demonstrated that the visibility indexcomputation time in mountainous terrain can be reduced substantially ...
Rana, S
core   +1 more source

Quality analysis of digital terrain models for the test area Zlatibor [PDF]

open access: yesGlasnik Srpskog Geografskog Društva, 2003
Digital terrain models (DTM) have recently become products which substitute standard methods for the terrain relief presentation. As a part of a Geographic Information Systems (GIS) they represent not only a data base related to heights that are used for
Bajat Branislav, Štrbac Dragoljub
doaj   +1 more source

DEM in quantitative analysis of structural geomorphology: application and prospect

open access: yesDizhi lixue xuebao, 2021
Digital elevation model (DEM) is used to realize the digital simulation of terrain surface (i.e. the digital representation of terrain surface shape) through the limited terrain elevation data.
CAO Pengju   +5 more
doaj   +1 more source

The study of local terrain modeling methods for vertical planning of the territory [PDF]

open access: yesGeodesy and Cartography, 2021
This work aims to study the vertical planning method for the terrain area as part of the process of construction geodetic support. Such planning will be carried out based on the aerial survey data from UAVs, which allow the creation of a high-quality ...
Ihor Trevoho   +4 more
doaj   +1 more source

Spectral filtering as a method of visualising and removing striped artefacts in digital elevation data [PDF]

open access: yes, 2008
Spectral filtering was compared with traditional mean spatial filters to assess their ability to identify and remove striped artefacts in digital elevation data. The techniques were applied to two datasets: a 100 m contour derived digital elevation model
Albani   +51 more
core   +1 more source

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