Results 41 to 50 of about 124,228 (379)
Quality assessment of open sourced digital elevation models in southeast coast of India
Egyptian Journal of Remote Sensing and Space Sciences, 2021 Digital elevation model (DEM) provides elevation values of the terrain. At present several open source DEMs are available and its vertical accuracy varies from place to place. The present study assessed the vertical accuracy of 1 arc-sec data of Advanced
Renganathan Mahesh +4 more
doaj
A new Greenland digital elevation model derived from ICESat-2
Earth 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
Model zemeljskega površja - DMR ali DMV? : Earth's Digital Surface Model - DTM or DEM? [PDF]
Geodetski Vestnik, 2002 Definition of a term digital terrain model that can be shortly described as 'digital description of the Earth's surface' was analysed. Meaning and usage of terms 'digital terrain model' or shortly DTM and 'digital elevation model' or DEM were cleared up.
Tomaž Podobnikar
doaj
Development of the TanDEM-X Calibration Concept: Analysis of Systematic Errors [PDF]
, 2010 The TanDEM-X mission, result of the partnership between the German Aerospace Center (DLR) and Astrium GmbH, opens a new era in spaceborne radar remote sensing. The first bistatic satellite synthetic aperture radar mission is formed by flying the TanDEM-
Bachmann, Markus +3 more
core +1 more source
Comments on “An Adaptive Terrain-Dependent Method for SRTM DEM Correction Over Mountainous Areas”
IEEE 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
Pre-late Devensian high-arctic marine deposits in SW Scotland [PDF]
, 2010 We present new interpretations of Digital Elevation Model (DEM) data and marine fossils collected from three sites on the Rhins of Galloway which, contrary to recent proposals, suggest that the landforms and deposits of the region do not represent ...
CHARLESWORTH, KERR, SHOTTON
core +2 more sources
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Abstract. Gradient boosted decision trees (GBDTs) have repeatedly outperformed several machine learning and deep learning algorithms in competitive data science. However, the explainability of GBDT predictions especially with earth observation data is still an open issue requiring more focus by researchers.
C. Okolie +6 more
openaire +4 more sources
DETERMINATION OF A TOPOGRAPHIC WETNESS INDEX USING HIGH RESOLUTION DIGITAL ELEVATION MODELS
European 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
OPEN-SOURCE DIGITAL ELEVATION MODEL (DEMs) EVALUATION WITH GPS AND LiDAR DATA [PDF]
The 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
Environmental 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