In 2015 a 3.7 km long seismic reflection profile was collected along the ice divide at Korff Ice Rise, West Antarctica, aiming to study basal conditions and englacial properties. Additionally, short refraction shot gathers were collected to study firn properties and constrain P-wave velocities in the firn. This dataset consists of the reflection and refraction data as a series of SEG-Y files. This study is part of the British Antarctic Survey programme Polar Science for Planet Earth. All data were collected with the support of the British Antarctic Survey.

The dataset contains depth information (in meters) for pixels of subglacial overdeepenings with an area of 10000 m2 or larger, across five regions: Alaska, European Alps, New Zealand Southern Alps, the Central Himalayas, and the Peruvian Andes. These overdeepenings were derived by subtracting ice thickness data from Digital Elevation Models (DEMs) that describe the surface topography. Five ice thickness models were used for all regions: Farinotti's Ensemble, GlabTop2, Huss and Farinotti were downloaded from Farinotti et al., (2019). OGGM's ice thickness was downloaded from Farinotti et al., 2019 for all regions except for the Himalayas where it was generated by keeping the default same. Millan's ice thickness was downloaded from Millan et al., (2022). The primary DEM used was the ALOS PALSAR DEM. For Central Himalayas, in addition to ALOS PALSAR, three other DEMs were used: ASTER, SRTM, and Copernicus. NERC standard grant NE/S013318/1.