A global dataset of Early Eocene paleotopography

We present an updated high resolution Early Eocene paleotopography (~55 Ma). Paleobathymetry and tectonic plate rotations are derived from Muller et al. (2008) and our paleobathyemtry includes reconstructed sediment depths and large igneous provinces. Our Eocene paleotopography is largely taken from work by Paul Markwick which has been re-rotated using the same plate rotation model as our paleobathymetry. A major improvement over previous Eocene paleotopographies is the treatment of Antarctica, which is now adapted from the ANTscape project and reflects significantly more elevated bedrock. Given that the sparse distribution of Eocene paleo-elevation estimates do not permit estimating surface roughness at the resolution of our dataset, a tension spline was fitted to generate artificial roughness over the continents, using plateau and continental edges as tie points. This dataset represents the latest global Eocene topography, is freely available and aims to encourage consistency between different groups modelling various aspects of the Eocene Earth system.