This user account is a bot operated by Fæ (talk). It is flagged as a bot.
It is not a sock puppet, but rather an automated or semi-automated account for making repetitive edits that would be extremely tedious to do manually. Administrators: if this bot is malfunctioning or causing harm, please block it.
In addition to the initial batch upload of around 20,000 images providing maps from 2003 to the current day, there may be categorization and image processing (such as format changes) as well as the on-going daily and weekly images.
Example USA National Centers for Environmental Prediction surface weather map for 11 November 2013.