Results 61 to 70 of about 704,317 (311)

The suitability of using ASTER GDEM2 for terrain-based extraction of stream channel networks in a lowland Arctic permafrost catchment

open access: yesFennia: International Journal of Geography, 2015
Seasonally inundated areas and water-saturated soils are common features of lowland Arctic and sub-Arctic permafrost environments. With the onset of snow melt, and water percolation down through the snowpack, a principal factor controlling stream channel
Anna Maria Trofaier, W Gareth Rees
doaj   +3 more sources

Construction of high-precision DEMs for urban plots

open access: yesAnnals of GIS, 2023
High-precision digital elevation models (DEMs) are the basic data for constructing digital cities. With the acceleration of urbanization, the topography of urban plots is constantly transformed by human activities, so that surface morphology shows the ...
Min Li   +4 more
doaj   +1 more source

Comparison of three modelling approaches of potential natural forest habitats in Bavaria, Germany [PDF]

open access: yes, 2005
In the context of the EU Habitats Directive, which contains the obligation of environmental monitoring, nature conservation authorities face a growing demand for effective and competitive methods to survey protected habitats.
Förster, Michael   +2 more
core  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

open access: yesAdvanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds   +2 more
wiley   +1 more source

Developing a Serious Game That Supports the Resolution of Social and Ecological Problems in the Toolset Environment of Cities: Skylines

open access: yesISPRS International Journal of Geo-Information, 2020
Game engines are not only capable of creating virtual worlds or providing entertainment, but also of modelling actual geographical space and producing solutions that support the process of social participation.
Robert Olszewski   +3 more
doaj   +1 more source

Slope stability and rockfall assessment of volcanic tuffs using RPAS with 2-D FEM slope modelling [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2018
Steep, hardly accessible cliffs of rhyolite tuff in NE Hungary are prone to rockfalls, endangering visitors of a castle. Remote sensing techniques were employed to obtain data on terrain morphology and to provide slope geometry for assessing the ...
Á. Török   +5 more
doaj   +1 more source

Application of a Three-Dimensional Unstructured-Mesh Finite-Element Flooding Model and Comparison with Two-Dimensional Approaches [PDF]

open access: yes, 2016
Urban flood modelling plays a key role in assessment of flood risk in urban areas by providing detailed information of the flooding process (e.g. location, depth and velocity of flooding).
Bates, Paul D   +3 more
core   +2 more sources

Optimisation of LiDAR derived terrain models for river flow modelling [PDF]

open access: yesHydrology and Earth System Sciences, 2009
Airborne LiDAR (Light Detection And Ranging) combines cost efficiency, high degree of automation, high point density of typically 1–10 points per m<sup>2</sup> and height accuracy of better than &plusmn;15 cm.
G. Mandlburger   +4 more
doaj  

Rockfall Modelling in Forested Areas: The Role of Digital Terrain Model Grid Cell Size

open access: yesApplied Sciences, 2021
This article examines how digital terrain model (DTM) grid cell size influences rockfall modelling using a probabilistic process-based model, Rockyfor3D, while taking into account the effect of forest on rockfall propagation and runout area. Two rockfall
Barbara Žabota   +2 more
doaj   +1 more source

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