These files were automatically exported from code.google.com/p/ssiii to this site when Google pulled the plug on Google Code.
Version 2 of the SSIII sea ice ontologies is currently in the Ontologies/v2 directory, though at this point all of the ontology references still use purl.org URL's (which also died during this time) with redirects to the google code site. Now that purl.org is migrating to the Internet Archive, these redirects should be fixed in the next few months...
In addition, code to create LOD triples from sea ice chart data in SIGRID 3 format from the v2 ontologies is included is available.
Version 3 of the ontologies are slowly being developed in my spare time; but hopefully will be available soon!