CCI THREDDS Data Server Catalog https://data.cci.ceda.ac.uk/thredds/catalog/esacci/sea_ice/data/sea_ice_concentration/L4/amsr/catalog.html

Dataset Size Last Modified
     Folder  amsr   --
         Folder  50km/   --
         Folder  25km/   --

CCI THREDDS Data Server at CEDA see Info
Documentation