Results 41 to 50 of about 1,085,325 (248)

Digital Elevation Models: Terminology and Definitions [PDF]

open access: yesRemote Sensing, 2021
Digital elevation models (DEMs) provide fundamental depictions of the three-dimensional shape of the Earth’s surface and are useful to a wide range of disciplines. Ideally, DEMs record the interface between the atmosphere and the lithosphere using a discrete two-dimensional grid, with complexities introduced by the intervening hydrosphere, cryosphere ...
Peter L. Guth   +13 more
openaire   +5 more sources

Generation and performance assessment of the global TanDEM-X digital elevation model

open access: yes, 2017
The primary objective of the TanDEM-X mission is the generation of a global, consistent, and high-resolution digital elevation model (DEM) with unprecedented global accuracy.
P. Rizzoli   +13 more
semanticscholar   +1 more source

CREATING DIGITAL ELEVATION MODEL USING A MOBILE DEVICE [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
DEM (Digital Elevation Models) is the best way to interpret topography on the ground. In recent years, lidar technology allows to create more accurate elevation models. However, the problem is this technology is not common all over the world.
A. İ. Durmaz
doaj   +1 more source

Statistical representation of mountain shading [PDF]

open access: yes, 2004
International audienceShadows cast by the mountains themselves have a strong influence on the surface energy balance of mountainous regions. If the influence of shadows is to be included on sub-grid scales in a surface energy balance model, a statistical
Essery, R
core   +2 more sources

PROTOTYPE OF NATIONAL DIGITAL ELEVATION MODEL IN INDONESIA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Although medium scale mapping has been done for the entire territory of Indonesia, there has never been a DEM unification to produce seamless national DEM. The main problem to generate national DEM is multi-data-sources.
D. B. Susetyo   +2 more
doaj   +1 more source

Ice shelf basal melt rates from a high-resolution digital elevation model (DEM) record for Pine Island Glacier, Antarctica

open access: yesThe Cryosphere, 2019
. Ocean-induced basal melting is responsible for much of the Amundsen Sea Embayment ice loss in recent decades, but the total magnitude and spatiotemporal evolution of this melt is poorly constrained.
D. Shean   +4 more
semanticscholar   +1 more source

Digital Elevation Model for Republic of Moldova [PDF]

open access: yesComputer Science Journal of Moldova, 1995
The creation of Digital Elevation Model technique is proposed. The initial data preparation requirements, the ideology of elevation matrix construction and absolute marks values interpolation, search optimization of obtained values are elucidated.
M. Zhuk, S. Novac, Gh. Sirodoev
doaj  

The Impact of Quality of Digital Elevation Models on the Result of Landslide Susceptibility Modeling Using the Method of Weights of Evidence

open access: yesGeosciences, 2020
The paper discusses the impact that the quality of the digital elevation model (DEM) has on the final result of landslide susceptibility modeling (LSM).
Mirosław Kamiński
doaj   +1 more source

Validation of FABDEM, a global bare-earth elevation model, against UAV-lidar derived elevation in a complex forested mountain catchment

open access: yesEnvironmental Research Communications, 2023
Space-based, global-extent digital elevation models (DEMs) are key inputs to many Earth sciences applications. However, many of these applications require the use of a ‘bare-Earth’ DEM versus a digital surface model (DSM), the latter of which may include
C. Marsh, P. Harder, J. Pomeroy
semanticscholar   +1 more source

Comparative analysis for methods of building digital elevation models from topographic maps using geoinformation technologies

open access: yesGeodesy and Cartography, 2021
The article considers the question of estimating the accuracy of interpolation methods for building digital elevation models using Soviet topographic maps. The territory of the Kursk region of the Russian Federation was used as the study area, because it
Vadim Belenok   +5 more
doaj   +1 more source

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