Results 1 to 10 of about 1,144 (111)

VERTICAL ACCURACY ASSESSMENT OF COPERNICUS DEM (CASE STUDY: TEHRAN AND JAM CITIES) [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Digital Elevation Models (DEMs) are widely utilized in a variety of fields, including, hydrology, geomorphology, and geoscience. The dataset is now openly and freely available to the public, with access permissions for data at 30- and 90-meter resolution
M. A. Ghannadi, S. Alebooye, M. Izadi, A. Ghanadi   +3 more
exaly   +2 more sources

Identification of river basins within northwestern slope of Crimean Mountains using various digital elevation models (ASTER GDEM, ALOS World 3D, Copernicus DEM, and SRTM DEM)

Frontiers in Earth Science, 2023
Since the end of the 20th century, the use of geographic information systems and digital elevation models has reduced the time required for and improved the quality of morphometric analysis of the relief within river basins.
Roman Gorbunov, Tatiana Gorbunova, Vladimir Tabunshchik   +2 more
exaly   +3 more sources

Applicability of Data Acquisition Characteristics to the Identification of Local Artefacts in Global Digital Elevation Models: Comparison of the Copernicus and TanDEM-X DEMs

Remote Sensing, 2021
Several global digital elevation models (DEMs) have been developed in the last two decades. The most recent addition to the family of global DEMs is the TanDEM-X DEM.
Lukáš Gábor, Vojtěch Barták, Jiří Prošek   +2 more
exaly   +3 more sources

Evaluation of Copernicus DEM and Comparison to the DEM Used for Landsat Collection-2 Processing

Remote Sensing, 2023
Having highly accurate and reliable Digital Elevation Models (DEMs) of the Earth’s surface is critical to orthorectify Landsat imagery. Without such accuracy, pixel locations reported in the data are difficult to assure as accurate, especially in more ...
Rajagopalan Rengarajan
exaly   +3 more sources

Global DEMs vary from one to another: an evaluation of newly released Copernicus, NASA and AW3D30 DEM on selected terrains of China using ICESat-2 altimetry data

International Journal of Digital Earth, 2022
A good understanding of the quality of digital elevation model (DEM) is a perquisite for various applications. This study investigates the accuracy of three most recently released 1-arcsec global DEMs (GDEMs, Copernicus, NASA and AW3D30) in five selected
Lunche Wang, Hui Li, Linwei Yue
exaly   +2 more sources

Vertical accuracy assessment of freely available global DEMs (FABDEM, Copernicus DEM, NASADEM, AW3D30 and SRTM) in flood-prone environments

International Journal of Digital Earth
Flood models rely on accurate topographic data representing the bare earth ground surface. In many parts of the world, the only topographic data available are the free, satellite-derived global Digital Elevation Models (DEMs).
Simon Jones, Karin Reinke
exaly   +3 more sources

Benchmarking Elevation Plus Land Surface Parameters Finds FathomDEM and Copernicus DEM Win as Best Global DEMs

Remote Sensing
We evaluated six global digital elevation DEMs at 1-arc-sec resolution: CopDEM and AW3D30, which are digital surface models (DSMs), and EDTM, GEDTM, FABDEM, and FathomDEM, which are digital terrain models (DTMs).
Peter L. Guth, Sebastiano Trevisani, Carlos H. Grohmann, John B. Lindsay, Hannes I. Reuter   +4 more
exaly   +3 more sources

Improving the resolution of solar energy potential maps derived from global DSMs for rooftop solar panel placement using deep learning [PDF]

Heliyon
This study focuses on generating high-resolution annual solar energy potential maps (ASMs) using global Digital Elevation Models (DEMs) to aid in solar panel placement, especially in urban areas.
Maryam Hosseini, Hossein Bagheri
doaj   +2 more sources

Sub-hectare resolution forest biomass mapping from Copernicus DEM with low-dimensional models

Science of Remote Sensing
Accurate, sub-hectare resolution mapping of above-ground biomass density (AGBD) of the global forests is needed for many applications, including carbon accounting, forest resource management, and biodiversity research. Surveys based on airborne lidar and
Stefano Tebaldini, Maurizio Santoro, Johannes Reiche   +2 more
exaly   +3 more sources

Error Characteristics of Pan-Arctic Digital Elevation Models and Elevation Derivatives in Northern Sweden

Remote Sensing, 2021
Many biochemical processes and dynamics are strongly controlled by terrain topography, making digital elevation models (DEM) a fundamental dataset for a range of applications. This study investigates the quality of four pan-Arctic DEMs (Arctic DEM, ASTER
Martin Karlson, David Bastviken, Heather Reese   +2 more
doaj   +1 more source