Arctic and Antarctic sea-ice thickness from CryoSat and Envisat radar altimetry

Stefan Hendricks1, Eero J Rinne2, Stephan Paul1, Robert Ricker1, Henriette Skourup3, Stefan Kern4 and Stein Sandven5, (1)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (2)Finish Meteorological Institute, Helsinki, Finland, (3)DTU Space, Lyngby, Denmark, (4)University of Hamburg, Hamburg, Germany, (5)Nansen Environmental and Remote Sensing Center, Bergen, Norway