The data can be downloaded by ftp with anonymous access at: ftp://ftp.awi.de/sea_ice/product/cryosat2/v2p1/nh/ and the following subfolders for trajectory/gridded and reprocessed/near-real time products.FTP Access
Reprocessed (1 month delay) Near-real time (2 days delay) Daily Trajectory l2p_trajectory l2p_trajectory/Latest Weekly Gridded l3c_grid/weekly l3c_grid/weekly/Latest Monthly Gridded l3c_grid/monthly l3c_grid/monthly/Latest