Results 1 to 10 of about 117,298 (306)

Visualization of a Digital Elevation Model

open access: yesData Science Journal, 2007
In recent years, Geographic Information Systems (GIS) have gradually changed from using the traditional 2D map expression to 3D visualization. The combination of visual techniques and GIS is a multi discipline, leading edge field, the development of ...
Linlin Lu, Huadong Guo
doaj   +4 more sources

The New Landsat Collection-2 Digital Elevation Model

open access: yesRemote Sensing, 2020
The Landsat Collection-2 distribution introduces a new global Digital Elevation Model (DEM) for scene orthorectification. The new global DEM is a composite of the latest and most accurate freely available DEM sources and will include reprocessed Shuttle ...
Shannon Franks   +2 more
doaj   +2 more sources

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   +2 more sources

Digital Elevation Model

open access: yes, 2020
This chapter presents the mathematical techniques, required to model and determine the digital elevation model (DEM) or the three-dimensional coordinates of points on earth’s surface (and hence the elevation above a reference ellipsoid).
Singh, Sanjay, Srivastava, Pradeep
core   +2 more sources

Improving the digital elevation model of topographic maps in GIS (applied study on Al-Tharthar Lake) [PDF]

open access: yesمجلة جامعة الأنبار للعلوم الإنسانية, 2022
The research aims to be an attempt by the researchers to apply improving the model of the digital rise, thus opening the way for researchers who are interested in developing and expanding this idea in the future.
Ali Khalil Khalaf Al-Jabiri
doaj   +1 more source

Digital elevation models of TanDEM-X mission [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2015
Started in 2010 TanDEM-X mission (TerraSAR-X add-on for Digital Elevation Measurement) is the first spaceborne radar interferometer mission that acquires interferometric data in bistatic InSAR stripmap mode with two spacecrafts TerraSAR-X (TSTSX) and ...
Małgorzata Woroszkiewicz
doaj   +1 more source

Airborne LiDAR-Derived Digital Elevation Model for Archaeology

open access: yesRemote Sensing, 2021
The use of topographic airborne LiDAR data has become an essential part of archaeological prospection, and the need for an archaeology-specific data processing workflow is well known.
Benjamin Štular   +2 more
doaj   +1 more source

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   +4 more sources

New high-fidelity terrain modeling method constrained by terrain semanteme. [PDF]

open access: yesPLoS ONE, 2018
Production of higher-fidelity digital elevation models is important; as such models are indispensable components of space data infrastructure. However, loss of terrain features is a constant problem for grid digital elevation models, although these ...
Bo Zhou   +3 more
doaj   +1 more source

Protection of Digital Elevation Model—One Approach

open access: yesApplied Sciences, 2022
The quality of DEMs is especially being considered based on the spatial resolution of the created digital models and the type of terrain of the interest area.
Ivan Vulić   +6 more
doaj   +1 more source

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