Results 11 to 20 of about 31,882 (294)

Digital terrain model height estimation using support vector machine regression

South African Journal of Science, 2015
Digital terrain model interpolation is intrinsically a surface fitting problem, in which unknown heights H are estimated from known X-Y coordinates.
Onuwa Okwuashi, Christopher Ndehedehe
doaj   +3 more sources

Canada1Water digital terrain model with bathymetry dataset(Zenodo). [PDF]

Data in Brief
National integrated water modelling of Canada required a (DEM) Digital Elevation Model for all continental Canada at a single resolution, with bathymetry, and inclusion of transboundary watersheds with the United States.
Eric D. Kessel, Steve K. Frey, Hazen A.J. Russell   +2 more
doaj   +2 more sources

DeltaDTM: A global coastal digital terrain model [PDF]

Scientific Data
Coastal elevation data are essential for a wide variety of applications, such as coastal management, flood modelling, and adaptation planning. Low-lying coastal areas (found below 10 m +Mean Sea Level (MSL)) are at risk of future extreme water levels ...
Maarten Pronk, Aljosja Hooijer, Dirk Eilander, Arjen Haag, Tjalling de Jong, Michalis Vousdoukas, Ronald Vernimmen, Hugo Ledoux, Marieke Eleveld   +8 more
doaj   +2 more sources

GEDTM30: global ensemble digital terrain model at 30 m and derived multiscale terrain variables [PDF]

PeerJ
Production and validation of an open global ensemble digital terrain model (GEDTM30) and derived terrain variables at 1 arc-s spacing grid ( $\sim$∼ 30 m spatial resolution) is described.
Yu-Feng Ho, Carlos H. Grohmann, John Lindsay, Hannes I. Reuter, Leandro Parente, Martijn Witjes, Tomislav Hengl   +6 more
doaj   +3 more sources

New Global Digital Terrain Model

Kartografija i Geoinformacije, 2011
In 1996 U.S. Geological Survey (USGS) developed a global digital terrain model GTOPO30 with the location resolution of 30" (approximately 1 km at the Equator).
Nedjeljko Frančula
doaj   +2 more sources

Automated Generation of Digital Terrain Model using Point Clouds of Digital Surface Model in Forest Area

Remote Sensing, 2011
At present, most of the digital data acquisition methods generate Digital Surface Model (DSM) and not a Digital Elevation Model (DEM). Conversion from DSM to DEM still has some drawbacks, especially the removing of off terrain point clouds and ...
Yoshikazu Kamiya, Rajendra P. Shrestha, Kande R.M.U. Bandara, Lal Samarakoon   +3 more
doaj   +2 more sources

Digital Terrain Model Geospatial Modelling

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The modelling means the world object cognition based on the analogy. This analogy presents an idea and material imitation of some properties of the existing world. It is processed by various anthropogenic objects, in which the chosen properties are presented, defined and characterised as shapes and relations of original objects.
Robert Sasik, Jakub Srek, Alessandro Valetta   +2 more
openaire   +1 more source

The study of local terrain modeling methods for vertical planning of the territory [PDF]

Geodesy and Cartography, 2021
This work aims to study the vertical planning method for the terrain area as part of the process of construction geodetic support. Such planning will be carried out based on the aerial survey data from UAVs, which allow the creation of a high-quality ...
Ihor Trevoho, Apollinariy Ostrovskiy, Ihor Kolb, Olena Ostrovska, Viacheslav Zhyvchuk   +4 more
doaj   +1 more source

Method for Measuring the Information Content of Terrain from Digital Elevation Models

Entropy, 2015
As digital terrain models are indispensable for visualizing and modeling geographic processes, terrain information content is useful for terrain generalization and representation.
Lujin Hu, Zongyi He, Jiping Liu, Chunhua Zheng   +3 more
doaj   +1 more source

Sparsity-Driven Digital Terrain Model Extraction [PDF]

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Preprint. Paper published in IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, Valencia, 2018, pp.
Fatih Nar, Erdal Yilmaz, Gustau Camps-Valls   +2 more
openaire   +4 more sources