Geodesic Discrete Global Grid Systems

In recent years, a number of data structures for global geo-referenced data sets have been proposed based on regular, multi-resolution partitions of polyhedra. We present a survey of the most promising of such systems, which we call Geodesic Discrete Global Grid Systems (Geodesic DGGSs). We show tha...

Full description

Saved in:
Bibliographic Details
Published in:Cartography and geographic information science Vol. 30; no. 2; pp. 121 - 134
Main Authors: Sahr, Kevin, White, Denis, Kimerling, A. Jon
Format: Journal Article
Language:English
Published: Taylor & Francis Group 01.04.2003
Taylor & Francis Group LLC
Subjects:
Comparative analysis
DISCRETE GLOBAL GRID SYSTEMS
Geographic information systems
GLOBAL DATA MODELS
Grids (Cartography)
SPATIAL DATA STRUCTURES
United States
ISSN:1523-0406, 1545-0465
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In recent years, a number of data structures for global geo-referenced data sets have been proposed based on regular, multi-resolution partitions of polyhedra. We present a survey of the most promising of such systems, which we call Geodesic Discrete Global Grid Systems (Geodesic DGGSs). We show that Geodesic DGGS alternatives can be constructed by specifying five substantially independent design choices: a base regular polyhedron, a fixed orientation of the base regular polyhedron relative to the Earth, a hierarchical spatial partitioning method defined symmetrically on a face (or set of faces) of the base regular polyhedron, a method for transforming that planar partition to the corresponding spherical/ellipsoidal surface, and a method for assigning point representations to grid cells. The majority of systems surveyed are based on the icosahedron, use an aperture 4 triangle or hexagon partition, and are either created directly on the surface of the sphere or by using an equal-area transformation. An examination of the design choice options leads us to the construction of the Icosahedral Snyder Equal Area aperture 3 Hexagon (ISEA3H) Geodesic DGGS.
ISSN:1523-0406
1545-0465
DOI:10.1559/152304003100011090