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Comments on “An Adaptive Terrain-Dependent Method for SRTM DEM Correction Over Mountainous Areas”

open access: yesIEEE Access, 2021
This paper comments on an article published in IEEE Access (C. Zhou et al., “An Adaptive Terrain-Dependent Method for SRTM DEM Correction Over Mountainous Areas,” IEEE Access, Vol. 8, pp. 130878–130887, 2020, DOI: 10.1109/ACCESS.2020.
Kazimierz Becek
doaj   +1 more source

3D Visualization of Large Digital Elevation Model (DEM) Data Set [PDF]

open access: yes, 2002
With the rapid development of Earth observation technologies, raster data has become the main Geographic Information System (GIS) data source. GIS should be able to manage and process huge raster data sets. In this paper, the problem of 3-dimensional visualization of huge DEM data sets and its corresponding images data sets in GIS was addressed. A real-
Min Sun   +3 more
openaire   +1 more source

Exploration of Glacial Landforms by Object-Based Image Analysis and Spectral Parameters of Digital Elevation Model

open access: yesIEEE Transactions on Geoscience and Remote Sensing, 2021
Glacial landforms are a significant element of landscape in many regions of Earth. The increasing availability of high-resolution digital elevation models (DEMs) provides an opportunity to develop automated methods of glacial landscape exploration and ...
Lukasz Janowski   +4 more
semanticscholar   +1 more source

DETERMINATION OF A TOPOGRAPHIC WETNESS INDEX USING HIGH RESOLUTION DIGITAL ELEVATION MODELS

open access: yesEuropean Journal of Geography, 2023
Topographic wetness indices (TWIs) computed from digital elevation models (DEMs) are means to forecast the amount of moisture in the soil. In this study, using sub-pixel/pixel attraction the spatial resolution of digital elevation models (DEM) was ...
Majid HOJATI, Marzieh MOKARRAM
doaj   +2 more sources

A new Greenland digital elevation model derived from ICESat-2

open access: yesEarth System Science Data, 2021
. Greenland digital elevation models (DEMs) are indispensable to fieldwork, ice velocity calculations and mass change estimations. Previous DEMs provided Greenland elevation information for different periods, but long temporal coverage introduced ...
Yubin Fan, C. Ke, Xiaoyi Shen
semanticscholar   +1 more source

OPEN-SOURCE DIGITAL ELEVATION MODEL (DEMs) EVALUATION WITH GPS AND LiDAR DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Advanced Spaceborne Thermal Emission and Reflection Radiometer-Global Digital Elevation Model (ASTER GDEM), Shuttle Radar Topography Mission (SRTM), and Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) are freely available Digital ...
N. F. Khalid   +6 more
doaj   +1 more source

SENSITIVITY ANALYSIS OF UAV-PHOTOGRAMMETRY FOR CREATING DIGITAL ELEVATION MODELS (DEM) [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Abstract. This study evaluates the potential that lies in the photogrammetric processing of aerial images captured by unmanned aerial vehicles. UAV-Systems have gained increasing attraction during the last years. Miniaturization of electronic components often results in a reduction of quality.
G. Rock, J. B. Ries, T. Udelhoven
openaire   +3 more sources

Bare‐Earth DEM Generation in Urban Areas for Flood Inundation Simulation Using Global Digital Elevation Models

open access: yesWater Resources Research, 2021
Accurate terrain representation is critical to estimating flood risk in urban areas. However, all current global elevation data sets can be regarded as digital surface models in urban areas as they contain building artifacts that cause artificial ...
Yinxue Liu   +3 more
semanticscholar   +1 more source

Control quality of open source Digital Elevation Models (DEMs) in Tunisia [PDF]

open access: yesRevue Internationale de Géomatique, 2017
Digital Elevation Models (DEMs) are an invaluable source of information in large area studies. Some of the DEMs such as Advanced Spaceborne Thermal Emission Radiometer-Global Digital Elevation Model (ASTER GDEM), shuttle radar topography mission (SRTM), and Global Multi-resolution Terrain Elevation Data 2010 (GMTED2010) are freely available for the ...
Noamen Rebai, Hammadi Achour
openaire   +4 more sources

Multi-source data joint processing framework for DEM calibration and fusion

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
High-accuracy digital elevation models (DEMs) are essential for remote sensing and geospatial analysis, yet integrating multi-source data over large and complex terrains remains challenging.
Cuilin Yu   +7 more
doaj   +1 more source

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