Results 31 to 40 of about 44,397 (261)
Hexagonal Discrete Global Grid Systems in Topographical and Hydrological Modeling
, 2023 Geographic Information Systems (GIS) have dominated geospatial analysis since the 1960s, where spatial phenomena were normally represented by individual thematic layers at a specific resolution, and commonly projected to a two-dimensional Cartesian coordinate system for analysis.
Li, Mingke
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Spherical Gravity Forwarding of Global Discrete Grid Cells by Isoparametric Transformation
MathematicsFor regional or even global geophysical problems, the curvature of the geophysical model cannot be approximated as a plane, and its curvature must be considered.
Shujin Cao +5 more
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A Topology Preserving Gridding Method for Vector Features in Discrete Global Grid Systems [PDF]
ISPRS International Journal of Geo-Information, 2020 Topological distortion seriously affects spatial cognition. To solve this problem caused by the integration of vector features in discrete global grid systems (DGGs), a topology-preserving gridding method for vector features is proposed. The method proposed determines the topological distortion according to the relationship between grid cells and then ...
Liangchen Zhou +3 more
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InundatEd-v1.0: a height above nearest drainage (HAND)-based flood risk modeling system using a discrete global grid system [PDF]
Geoscientific Model Development, 2021 Despite the high historical losses attributed to flood events, Canadian flood mitigation efforts have been hindered by a dearth of current, accessible flood extent/risk models and maps.
C. Chaudhuri, A. Gray, C. Robertson
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GENERATION ALGORITHM OF DISCRETE LINE IN MULTI-DIMENSIONAL GRIDS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017 Discrete Global Grids System (DGGS) is a kind of digital multi-resolution earth reference model, in terms of structure, it is conducive to the geographical spatial big data integration and mining.
L. Du, J. Ben, Y. Li, R. Wang
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Categorization and Conversions for Indexing Methods of Discrete Global Grid Systems [PDF]
ISPRS International Journal of Geo-Information, 2015 Digital Earth frameworks provide a tool to receive, send and interact with large location-based datasets, organized usually according to Discrete Global Grid Systems (DGGS). In DGGS, an indexing method is used to assign a unique index to each cell of a global grid, and the datasets corresponding to these cells are retrieved or allocated using this ...
Ali Amiri +2 more
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Global 3D-Grids Based on Great Circle Arc QTM Sphere Octree and Its Application [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 With the development of computers, network communications, scientific computing, mapping remote sensing and geographic information technologies, Discrete Global Grids (DGGs) and Earth System Spatial Grid（ESSG）have become the integrated spatial data model
J. X. Wang +3 more
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GEOmedia, 2018 The Open Geospatial Consortium (OGC) announced the adoption of the new Discrete Global Grid System (DGGS) standard, which aimed to report geospatial information on earth, in a different way.
Renzo Carlucci
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MPC-based control strategy of PV grid connected inverter for damping power oscillations
Frontiers in Energy Research, 2022 With global warming and the depletion of fossil energy, the development of photovoltaic (PV) energy has attracted attention in many countries. However, when large-scale PV power stations are connected to the power grid through inverters, the inertia and ...
Xichang Wen +4 more
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, 2020 InundatEd: A Large-scale Flood Risk Modeling System on a Big-data - Discrete Global Grid System ...
Colin Robertson +2 more
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