SIGRID-3 : a vector archive format for sea ice georeferenced information and data. Version 3.0.

Abstract

This document describes Version 3.0 of SIGRID-3 (Sea Ice GeoReferenced Information and Data), an evolution of the SIGRID series of standards for coding, exchange and archiving of digital ice charts. Version 3.0 retains the essential structure of its predecessor and is backwards compatible with earlier versions of SIGRID-3. The important extension of Version 3 is to incorporate the features, attributes and encoding of the Ice Objects Catalogue for Electronic Navigation Charts (ENCs). The purpose of this extension is to facilitate the automatic translation of digital ice charts into S-57 and S-10x ENC formats.