ISO 19170:2021

Description

This document supports the definition of:

-    A Discrete Global Grid Systems (DGGS) core comprising:

-    an RS using zonal identifiers with structured geometry, and

-    functions providing import, export and topological query,

-    Common spatio-temporal classes for geometry, topology, RS using zonal identifiers, zonal identifiers and zones, based on ISO 19111 CRS. The spatio-temporal scope is constrained to:

-    spatial elements that are invariant through all time, and

-    temporal elements that are invariant across all space.

-    Equal-Area Earth Reference Systems (EAERSs) for Equal-Area Earth DGGS.