On Friday, 06 November 2015 from 8:00 a.m. to 5:00 p.m. (USA Mountain Time), our FTP services, which also includes automated data requests from services such as Polaris and the GLAS Subsetter, will be unavailable because of system maintenance. We apologize for any inconvenience this may cause you.
The goal of VELMAP is to compile ice flow velocity for the whole Antarctic continent from all sources. Ice flow and its temporal changes are among the most fundamental parameters of the Antarctic Ice Sheet. Understanding these is essential to answering questions about whether the volume of ice is changing and how it may change in the future. Since changes in Antarctic ice have an impact on sea level, this is a problem with global importance.