Discrete global grid (original) (raw)

dbo:abstract

A discrete global grid (DGG) is a mosaic that covers the entire Earth's surface.Mathematically it is a space partitioning: it consists of a set of non-empty regions that form a partition of the Earth's surface. In a usual grid-modeling strategy, to simplify position calculations, each region is represented by a point, abstracting the grid as a set of region-points. Each region or region-point in the grid is called a cell. When each cell of a grid is subject to a recursive partition, resulting in a "series of discrete global grids with progressively finer resolution", forming a hierarchical grid, it is called a hierarchical DGG (sometimes "global hierarchical tessellation"or "DGG system"). Discrete global grids are used as the geometric basis for the building of geospatial data structures. Each cell is related with data objects or values, or (in the hierarchical case) may be associated with other cells. DGGs have been proposed for use in a wide range of geospatial applications, including vector and raster location representation, data fusion, and spatial databases. The most usual grids are for horizontal position representation, using a standard datum, like WGS84. In this context, it is common also to use a specific DGG as foundation for geocoding standardization. In the context of a spatial index, a DGG can assign unique identifiers to each grid cell, using it for spatial indexing purposes, in geodatabases or for geocoding. (en)
El DGGS (Discrete Global Grid System) o Sistema de Mallas Globales y Discretas es un estándar desarrollado por el OGC cuyo objetivo es mejorar la manera en la que se georreferencia datos geográficos sin tener que manejar sistemas de coordenadas proyectadas. La norma tesela la Tierra en una secuencia jerarquizada y piramidal de hexágonos de igual superficie que cubren toda la superficie esférica con una resolución creciente. (es)

dbo:thumbnail

wiki-commons:Special:FilePath/Utm-zones-USA.svg?width=300

dbo:wikiPageExternalLink

dbo:wikiPageID

43791967 (xsd:integer)

dbo:wikiPageLength

43424 (xsd:nonNegativeInteger)

dbo:wikiPageRevisionID

1118101296 (xsd:integer)

dbo:wikiPageWikiLink

dbp:date

2006-12-15 (xsd:date)

dbp:gran

fine (en)
coarse (en)

dbp:img

Delaunay-Triangulation.svg (en)
Four-level_Z.svg (en)
Geographic coordinates sphere.png (en)
HTM-diagram.png (en)
HealpixGridRefinement.jpg (en)
Hilbert Cubed Sphere.png (en)
Utm-zones-USA.svg (en)
Utmzonenugitterp.png (en)

dbp:imgWidth

140 (xsd:integer)

dbp:object

terrain (en)
cube (en)
Geoid (en)
cylinder (en)

dbp:proj

none (en)
UTM (en)
UTM or latlong (en)
parametrized HEALPix projection (en)
spherical projections in each cube face using quadratic function (en)

dbp:type

irregular (en)
rectangular (en)
quadrilateral (en)
semi-regular (en)
triangular (en)
triangular non-uniform (en)

dbp:typeDescr

rectangular (en)
equal-angle (en)
parametrized (en)
polygonal strips (en)
quadrilateral projections (en)
spherical equilateres (en)
uniform area-preserved (en)
uniform spheroidal shape (en)

dbp:url

https://web.archive.org/web/20061215105237/http:/kiwi.atmos.colostate.edu/BUGS/geodesic/

dbp:wikiPageUsesTemplate

dbp:year

1983 (xsd:integer)
2004 (xsd:integer)
2006 (xsd:integer)
2008 (xsd:integer)
2015 (xsd:integer)
1940.0
1950.0
1970.0

dcterms:subject

dbc:Geographic_coordinate_systems

rdfs:comment

El DGGS (Discrete Global Grid System) o Sistema de Mallas Globales y Discretas es un estándar desarrollado por el OGC cuyo objetivo es mejorar la manera en la que se georreferencia datos geográficos sin tener que manejar sistemas de coordenadas proyectadas. La norma tesela la Tierra en una secuencia jerarquizada y piramidal de hexágonos de igual superficie que cubren toda la superficie esférica con una resolución creciente. (es)
A discrete global grid (DGG) is a mosaic that covers the entire Earth's surface.Mathematically it is a space partitioning: it consists of a set of non-empty regions that form a partition of the Earth's surface. In a usual grid-modeling strategy, to simplify position calculations, each region is represented by a point, abstracting the grid as a set of region-points. Each region or region-point in the grid is called a cell. In the context of a spatial index, a DGG can assign unique identifiers to each grid cell, using it for spatial indexing purposes, in geodatabases or for geocoding. (en)

rdfs:label

Sistema de Mallas Globales y Discretas (es)
Discrete global grid (en)

owl:sameAs

prov:wasDerivedFrom

wikipedia-en:Discrete_global_grid?oldid=1118101296&ns=0

foaf:depiction

foaf:isPrimaryTopicOf

wikipedia-en:Discrete_global_grid

is dbo:wikiPageRedirects of

is dbo:wikiPageWikiLink of

is foaf:primaryTopic of

wikipedia-en:Discrete_global_grid