We present here a suite of ground-penetrating radar (GPR) data collected on Larsen C Ice Shelf, Antarctic Peninsula, in November and December 2022 as part of the NERC-funded RiPIce (Rift Propagation for Ice sheet models) research project. All data were acquired with a Sensors&Software pulsEKKO PRO GPR system, fitted with antennas of 50 MHz centre-frequency. The system was towed behind a snowmobile, with distances recorded with GPS. This project is funded by a NERC standard grant NE-T008016-1.

This dataset was collected during two Antarctic field seasons (2013-14, 2014-15) using the DEep LOoking Radio-Echo Sounder (DELORES), a ground-based ice-penetrating radar system that was designed and built by the British Antarctic Survey. It is an updated version of the radar used by Hindmarsh and others (2011). The system emits 2500 radio-wave pulses per second with a centre frequency of 4 MHz and samples the return at 250 MHz. Vertical resolution is approximately 30 cm. The radar is towed across the ice-sheet surface behind a skidoo at approximately 15 km h -1 and 512 complete traces are staked for each stored record, resulting in stacked traces approximately every 85 cm.