Radiostratigraphy and Age Structure of the Greenland Ice Sheet, Version 2 is now available at the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC). This data set contains the traced deep radiostratigraphy of the Greenland Ice Sheet from airborne deep ice-penetrating radar with new temporal coverage from 24 June 1993 to 16 May 2019.
Data set DOI: http://doi.org/10.5067/SZSVA3CWV3U4