Results 1 to 10 of about 51,150 (345)
ISPRS International Journal of Geo-Information, 2019 Digital elevation models (DEMs) are a widely used form of topographic information, with some of the most popular being the Shuttle Radar Topography Mission (SRTM) DEM and the Advanced Spaceborne Thermal Emission and Reflection Radiometer Global Digital ...
Antonios Mouratidis +1 more
doaj +2 more sources
The New Landsat Collection-2 Digital Elevation Model
Remote Sensing, 2020 The Landsat Collection-2 distribution introduces a new global Digital Elevation Model (DEM) for scene orthorectification. The new global DEM is a composite of the latest and most accurate freely available DEM sources and will include reprocessed Shuttle ...
Shannon Franks +2 more
doaj +2 more sources
Ownership Protection on Digital Elevation Model (DEM) Using Transform-Based Watermarking
ISPRS International Journal of Geo-Information, 2022 This research aims to protect Digital Elevation Model (DEM) data from piracy or counterfeiting. An invisible watermark inserted into the data, which will not considerably change the data value, is necessary.
Fahmi Amhar +10 more
doaj +2 more sources
Evaluation of vertical accuracy of open source Digital Elevation Model (DEM)
International Journal of Applied Earth Observation and Geoinformation, 2013 Abstract Digital Elevation Model (DEM) is a quantitative representation of terrain and is important for Earth science and hydrological applications. DEM can be generated using photogrammetry, interferometry, ground and laser surveying and other techniques.
Sandip Mukherjee +5 more
openaire +2 more sources
Comparis of digital elevation model (DEM) and aerial photographs for drainage [PDF]
Modeling Earth Systems and Environment, 2015 Currently, elevation data are available from several major sources and at different spatial resolutions. This paper shows the quality and accuracy of drainage network analysis resulted from ASTER DEMs and aerial photographs. Hydrology toolsets in the when we used the vector datasets for analyzing in separate land features.
Marzieh Mokarram, Majid Hojati
openalex +2 more sources
Computers & Geosciences, 2009 Digital Elevation Models (DEMs) are used to compute the hydro-geomorphological variables required by distributed hydrological models. However, the resolution of the most precise DEMs is too fine to run these models over regional watersheds. DEMs therefore need to be aggregated to coarser resolutions, affecting both the representation of the land ...
Le Coz, Mathieu +3 more
openaire +3 more sources
A Seamless, High-Resolution, Coastal Digital Elevation Model (DEM) for Southern California [PDF]
Data Series, 2010 A seamless, three-meter digital elevation model (DEM) was constructed for the entire Southern California coastal zone, extending 473 km from Point Conception to the Mexican border. The goal was to integrate the most recent, high-resolution datasets available (for example, Light Detection and Ranging (Lidar) topography, multibeam and single beam sonar ...
Patrick L. Barnard, Daniel Hoover
openaire +2 more sources
Cost-Efficient Digital Elevation Model (DEM) Acquisition on Flume Tank Morphodynamic Observation
JGEET: Journal of Geoscience, Engineering, Environment and TechnologyDigital Elevation Model (DEM) is well known for providing solutions to the theoretical and application-related problems around geosciences. The use of DEM in flume tank experiment is getting more common nowadays.
Octria Adi Prasojo +2 more
doaj +2 more sources