Results 11 to 20 of about 139,178 (334)

Perspectives on Digital Elevation Model (DEM) Simulation for Flood Modeling in the Absence of a High-Accuracy Open Access Global DEM

Frontiers in Earth Science, 2018
Open-access global Digital Elevation Models (DEM) have been crucial in enabling flood studies in data-sparse areas. Poor resolution (>30m), significant vertical errors and the fact that these DEMs are over a decade old continue to hamper our ability to ...
Laurence Hawker, P. Bates, J. Neal, J. Rougier   +3 more
semanticscholar   +3 more sources

Understanding the effects of Digital Elevation Model resolution in urban fluvial flood modelling

Journal of Hydrology, 2021
With the extensive use of 2D flood models, the resolution and quality of Digital Elevation Models (DEMs) have come under greater focus especially in urban hydrology.
M. Muthusamy, M. Casado, D. Butler, P. Leinster   +3 more
semanticscholar   +3 more sources

Generation and performance assessment of the global TanDEM-X digital elevation model

ISPRS Journal of Photogrammetry and Remote Sensing, 2017
The primary objective of the TanDEM-X mission is the generation of a global, consistent, and high-resolution digital elevation model (DEM) with unprecedented global accuracy.
P. Rizzoli, M. Martone, Carolina González, Christopher Wecklich, D. Tridon, Benjamin Bräutigam, M. Bachmann, D. Schulze, T. Fritz, M. Huber, B. Wessel, G. Krieger, M. Zink, A. Moreira   +13 more
semanticscholar   +3 more sources

Accuracy assessment of the global TanDEM-X Digital Elevation Model with GPS data

ISPRS Journal of Photogrammetry and Remote Sensing, 2018
The primary goal of the German TanDEM-X mission is the generation of a highly accurate and global Digital Elevation Model (DEM) with global accuracies of at least 10 m absolute height error (linear 90% error). The global TanDEM-X DEM acquired with single-
B. Wessel, M. Huber, Christian Wohlfart, U. Marschalk, D. Kosmann, A. Roth   +5 more
semanticscholar   +3 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, Kaladevi Jayadevan Sarunjith, Sambandan Rajakumari, Ramakrishnan Muruganandam, Ramachandran Ramesh   +4 more
doaj   +1 more source

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.
Jana Marešová, Kateřina Gdulová, Petra Pracná, David Moravec, Lukáš Gábor, Jiří Prošek, Vojtěch Barták, Vítězslav Moudrý   +7 more
doaj   +1 more source

Automated digital elevation model (DEM) generation from very-high-resolution Planet SkySat triplet stereo and video imagery

, 2021
The Planet SkySat-C SmallSat constellation can acquire very high resolution (0.7 m to 0.9 m) triplet stereo and video imagery with short revisit times, providing an exciting opportunity for global, on-demand 3D mapping of dynamic surface features ...
Shashank Bhushan, D. Shean, O. Alexandrov, S. Henderson   +3 more
semanticscholar   +1 more source

The Impact of Quality of Digital Elevation Models on the Result of Landslide Susceptibility Modeling Using the Method of Weights of Evidence

Geosciences, 2020
The paper discusses the impact that the quality of the digital elevation model (DEM) has on the final result of landslide susceptibility modeling (LSM).
Mirosław Kamiński
doaj   +1 more source

Shaping the Global High-Resolution TanDEM-X Digital Elevation Model

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The global digital elevation model (DEM) produced by the TanDEM-X (TerraSAR-X add-on for digital elevation measurements) mission is an interferometric elevation model with unprecedented quality, accuracy, and coverage.
Martin Huber, Nicole Osterkamp, Ursula Marschalk, Raphael Tubbesing, Anna Wendleder, Birgit Wessel, Achim Roth   +6 more
doaj   +1 more source

Digital elevation models of TanDEM-X mission [PDF]

Biuletyn Wojskowej Akademii Technicznej, 2015
Started in 2010 TanDEM-X mission (TerraSAR-X add-on for Digital Elevation Measurement) is the first spaceborne radar interferometer mission that acquires interferometric data in bistatic InSAR stripmap mode with two spacecrafts TerraSAR-X (TSTSX) and ...
Małgorzata Woroszkiewicz
doaj   +1 more source