Results 11 to 20 of about 487 (148)
GEOMETRIC ACCURACY ANALYSIS OF WORLDDEM IN RELATION TO AW3D30, SRTM AND ASTER GDEM2 [PDF]
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives, 2017 In a project area close to Istanbul the quality of WorldDEM, AW3D30, SRTM DSM and ASTER GDEM2 have been analyzed in relation to a reference aerial LiDAR DEM and to each other. The random and the systematic height errors have been separated.
Karsten Jacobsen
exaly +7 more sources
Análise da Acurácia Altimétrica do Modelo Digital de Superfície ALOS AW3D30 para o Mato Grosso do Sul [PDF]
Anuário do Instituto de Geociências, 2019 O Mato Grosso do Sul apresenta riquezas ambientais a se destacar. O Pantanal, como exemplo, é a maior área alagável do planeta e é considerado patrimônio natural da humanidade pela Unesco.
Mauricio de Souza +2 more
doaj +5 more sources
Application of the global SRTM and AW3D30 digital elevation models to mapping folds at cave sites
International Journal of Speleology, 2021 A novel method to map and quantitatively describe very gentle folds (limb dip < 5o) at cratonic cave sites was evaluated at Snail Shell and Nanna Caves, central Tennessee, USA.
Mark Abolins, Albert Ogden
doaj +2 more sources
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 +2 more sources
VERTICAL ACCURACY ASSESSMENT OF 30-M RESOLUTION ALOS, ASTER, AND SRTM GLOBAL DEMS OVER NORTHEASTERN MINDANAO, PHILIPPINES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 The ALOS World 3D – 30 m (AW3D30), ASTER Global DEM Version 2 (GDEM2), and SRTM-30 m are Digital Elevation Models (DEMs) that have been made available to the general public free of charge.
J. R. Santillan, M. Makinano-Santillan
doaj +2 more sources
Land, 2023 The high-precision digital elevation model (DEM) is of great significance for improving the accuracy of InSAR deformation monitoring. In today’s free opening of multi-source DEM, there is no consensus on how to select suitable DEMs to assist InSAR in ...
Hui Liu +7 more
doaj +2 more sources
ANALYSIS AND BIAS IMPROVEMENT OF HEIGHT MODELS BASED ON SATELLITE IMAGES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Height models are a fundamental part of the geo-information required for various applications. The determination of height models by aerial photogrammetry, LiDAR or space images is time-consuming and expensive. For height models with large area coverage,
K. Jacobsen, R. Passini
doaj +3 more sources
Geocarto InternationalUnderstory terrain is an important fundamental indicator for monitoring changes in forest ecosystems. However, in-depth analysis of the accuracy of existing international open-source DEM products is still lacking for understory environments. The DEM data
Jiapeng Huang +3 more
doaj +2 more sources
Remote Sensing, 2018 Vertical urban growth in the form of urban volume or building height is increasingly being seen as a significant indicator and constituent of the urban environment. Although high-resolution digital surface models can provide valuable information, various
Prakhar Misra +2 more
doaj +2 more sources
International Journal of Digital Earth, 2019 Digital Elevation Models (DEMs) contain topographic relief data that are vital for many geoscience applications. This study relies on the vertical accuracy of publicly available latest high-resolution (30 m) global DEMs over Cameroon. These models are (1)
Loudi Yap +5 more
doaj +2 more sources