The First Depiction of Two Superimposed Geographical Surfaces in One Autostereoscopic Map: Antarctica's Topography and the Southern Ocean Seafloor

Within the past 10-15 years true-3D lenticular cartography has experienced a remarkable boost. In the course of this development, besides studies into its potential for thematic-cartographic representations, the synoptic depiction of physical surfaces ('geo[graphical] surfaces') has been playing a significant role. In this context the innovative holistic display of complex morphological and topographical conditions is of particular interest. The simultaneous representation of various cartographic parameters at different depths will deliver an enormous surplus of information transfer in the field of thematic cartography as well as in physical/topographic cartography. This paper describes the methodological development and generation of an autostereoscopic hardcopy display of Antarctic topography. The purpose was the simultaneous depiction of the two superimposed surfaces of both the ice-sheet and the rock-bed and, in addition, of the surrounding seafloor, thus displaying a vertical drop of more than 12,000 m.