Results 11 to 20 of about 8,134 (290)

INDUCED \(nK_{2}\) DECOMPOSITION OF INFINITE SQUARE GRIDS AND INFINITE HEXAGONAL GRIDS [PDF]

open access: yesUral Mathematical Journal, 2022
The induced \(nK_2\) decomposition of infinite square grids and hexagonal grids are described here. We use the multi-level distance edge labeling as an effective technique in the decomposition of square grids.
Dinesan Deepthy   +1 more
doaj   +2 more sources

A mimetic, semi-implicit, forward-in-time, finite volume shallow water model: comparison of hexagonal–icosahedral and cubed-sphere grids [PDF]

open access: yesGeoscientific Model Development, 2014
A new algorithm is presented for the solution of the shallow water equations on quasi-uniform spherical grids. It combines a mimetic finite volume spatial discretization with a Crank–Nicolson time discretization of fast waves and an accurate and ...
J. Thuburn, C. J. Cotter, T. Dubos
doaj   +3 more sources

Ocean surface currents estimated from satellite remote sensing data based on a global hexagonal grid

open access: yesInternational Journal of Digital Earth, 2023
Global ocean surface currents estimated from satellite derived data based on a regular global grid are affected by the grid’s shape and placement.
Wenbo Wang   +4 more
doaj   +2 more sources

Semantic-Aware Path Planning with Hexagonal Grids and Vehicle Dynamic Constraints

open access: yesEnergies, 2023
The article presents a navigation system that utilizes a semantic map created on a hexagonal grid. The system plans the path by incorporating semantic and metric information while considering the vehicle’s dynamic constraints.
Barbara Siemiątkowska   +3 more
doaj   +2 more sources

Extraction of ocean tidal information based on global equal-area grid and satellite altimeter data

open access: yesInternational Journal of Digital Earth, 2022
Harmonic analysis of satellite altimetry data based on a global regular grid is affected by the grid spatial tessellation and placement of the grids.
Wenbo Wang   +4 more
doaj   +1 more source

Spherical Grid Creation and Modeling Using the Galerkin Compiler GC_Sphere

open access: yesAtmosphere, 2023
The construction of spherical grids is, to a large extent, a question of organized programming. Such grids come in the form of rhomboidal/triangular grids and hexagonal grids.
Jürgen Steppeler
doaj   +1 more source

Hexagonal vs. Rectilinear Grids for Explicit Finite Difference Schemes for the Two-dimensional Wave Equation [PDF]

open access: yes, 2013
Finite difference schemes for the 2-D wave equation operating on hexagonal grids and the accompanyingnumerical dispersion properties have received little attention in comparison to schemes operating on rectilinear grids.
Stefan Bilbao   +3 more
core   +2 more sources

icosa: Global Triangular and Penta-Hexagonal Grids Based on Tessellated Icosahedra

open access: yes, 2023
Implementation of icosahedral grids in three dimensions. The spherical-triangular tessellation can be set to create grids with custom resolutions. Both the primary triangular and their inverted penta-hexagonal grids can be calculated.
Ádám T. Kocsis
core   +2 more sources

An Information Fusion Model between GeoSOT Grid and Global Hexagonal Equal Area Grid

open access: yesISPRS International Journal of Geo-Information, 2022
In order to cope with the rapid growth of spatiotemporal big data, data organization models based on discrete global grid systems have developed rapidly in recent years.
Qingmei Li   +4 more
doaj   +1 more source

Non-orthogonal version of the arbitrary polygonal C-grid and a new diamond grid [PDF]

open access: yesGeoscientific Model Development, 2014
Quasi-uniform grids of the sphere have become popular recently since they avoid parallel scaling bottlenecks associated with the poles of latitude–longitude grids. However quasi-uniform grids of the sphere are often non-orthogonal. A version of the
H. Weller
doaj   +1 more source

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