We estimated monthly mean basal melt rates in the Lagrangian frame from autonomous phase-sensitive radar (ApRES) measurements at the center of Ekström Ice Shelf, Antarctica (70.82°S, 8.73°W) between April 2020 and December 2022. The data we recorded with a measurement interval of one hour. Basal melt rates are based on the analysis of firn densification, strain thinning, and the change in ice thickness from the determination of vertical displacements. We calculated the mean basal melt rate as well as the standard deviation, and maximum for each month.

Data were measured in the field by Noah Trumpik, Ina Wehner, Olaf Eisen, Reza Ershadi, Falk Oraschewski, Timo Dornhöfer, Lorenz Marten, Martin Petri and Maximilian Betz. Data processing was done by Ole Zeising.This dataset has been planned by Olaf Eisen as part of the MIMO-EIS Project.If you have questions, please contact Ole Zeising (ole.zeising@awi.de) or co-authors.