Digital Surface Model Huon Coral Reef Terraces

Revised submission to Communications Earth and Environment (11/10/22): High interstadial sea levels over the past 420ka from the Huon Peninsula (Papua New Guinea) Supplementary Data 5. Huon Digital Surface Model derived from Pleiades satellite imagery. We used tri-stereo 0.5 m-resolution Pleiades satellite images to calculate the topography of the Huon Peninsula terrace sequence. The open-source software Ames Stereopipeline (Beyer et al., 2018; reference 74 in the paper) allowed us to produce ortho-rectified images, point clouds and a 2 m-resolution DSM, to which we applied a -58.9 m vertical correction to account for the geoid height. We ground-checked absolute elevations of 10 control points along the coastline, that were all between 0 and 1 m elevation. We used a 30 m-resolution ALOS DSM to fill in the gaps that resulted from cloud coverage within the Pleiades DSM. The DSM is a Geotiff file, with UTM projection.