Results 11 to 20 of about 1,932,221 (364)
Creation of digital elevation models for river floodplains [PDF]
Proceedings of the V International conference Information Technology and Nanotechnology 2019, 2019 A procedure for constructing a digital elevation model (DEM) of the northern part of the Volga-Akhtuba interfluve is described. The basis of our DEM is the elevation matrix of Shuttle Radar Topography Mission (SRTM) for which we carried out the refinement and updating of spatial data using satellite imagery, GPS data, depth measurements of the River ...
Anna Klikunova, Alexander Khoperskov
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Influence of digital elevation model resolution on rockfall modelling
Geomorphology, 2019 Abstract Spatial models are an effective tool for determining potential rockfall source, transit and deposit areas. The reliability of the final rockfall modelling results depends on the quality of the input data, which is mostly based on the digital elevation model (DEM).
Žabota, Barbara +2 more
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Geodesy and Cartography, 2012 The article deals with the geomorphologic method of classification of the elevation, applying a special overlay of the first and second rate derivative of the elevation.
Aušra Kumetaitienė
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Improving the digital elevation model of topographic maps in GIS (applied study on Al-Tharthar Lake) [PDF]
مجلة 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
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Digital Elevation Models: Terminology and Definitions [PDF]
Remote 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
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International Journal of Disaster Risk Science, 2021 Digital Elevation Models (DEMs) play a critical role in hydrologic and hydraulic modeling. Flood inundation mapping is highly dependent on the accuracy of DEMs.
Kepeng Xu +5 more
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Digital elevation models of TanDEM-X mission [PDF]
Biuletyn 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
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New high-fidelity terrain modeling method constrained by terrain semanteme. [PDF]
PLoS 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
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Digital Elevation Model Quality Assessment Methods: A Critical Review
Remote Sensing, 2020 Digital elevation models (DEMs) are widely used in geoscience. The quality of a DEM is a primary requirement for many applications and is affected during the different processing steps, from the collection of elevations to the interpolation implemented ...
L. Polidori, M. Hage
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Shirkat Town Monitoring Using Digital Elevation Model [PDF]
Engineering and Technology Journal, 2011 In this search, a colored image of French satellite SPOT, of Shirkat country in Salahadeen was used with resolution about (5m) for an area with dimensions (4km×8km), and a digital elevation model (DEM) with grids (20m×20m) and levels reach to (1m ...
Iman A. Shawkat +2 more
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