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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.
This second OGC edition of Abstract Specification Topic 21 — Discrete Global Grid Systems replaces the first edition (OGC 15-104r5), which has been technically revised. The changes in this edition compared to the previous OGC edition are: separation into DGGS Core and a specification for Equal Area Earth DGGS;
Jun 13, 2017 · Topic 21: Discrete Global Grid Systems Abstract Specification. Copyright notice. Copyright © 2017 Open Geospatial Consortium. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ . Warning. This document is an OGC Member approved international standard.
Nov 11, 2020 · Discrete Global Grid is a partitioning approach to divide the Earth’s surface into nearly uniform cells and represent each cell by a single identifier (Goodchild 2000). A DGGS consists of a series of Discrete Global Grids with nested resolutions, and is expected to support global sampling, information storage, data modeling, analysis ...
- Mingke Li, Emmanuel Stefanakis
- 2020
A Discrete Global Grid System (DGGS) is a series of discrete global grids, usually consisting of increasingly finer resolution grids (though the term DGG is often used interchangeably with the term DGGS). Defining a Discrete Global Grid System (DGGS) Regular DGGSs are often built using an underlying regular polyhedron.
Discrete global grid systems (DGGS) are spatial references that use a hierarchical tessellation of cells to partition and address the entire globe. DGGS are designed to portray real-world phenomena by synthesizing digital values on a common discrete geospatial data structure.
The Open Geospatial Consortium (OGC ®) has released a new candidate standard for Discrete Global Grid Systems (DGGS) that defines a set of rules for defining highly efficient architectures for spatial data storage and analytics. The goal of a DGGS is to enable rapid integration of spatial data without the difficulties of working with legacy ...
