On Friday, 30 January 2015 from 8:00 a.m. to 5:00 p.m. (USA Mountain Time), we will be performing scheduled maintenance, which may cause temporary disruptions to our Web site, applications, and FTP. We apologize for any inconvenience this may cause you.
July 1, 2013: The Sea Ice Index team has replaced the
22-year base period with a new 30-year version. Read more.