Datasets for "Discrepancy in satellite altimetry products hinders robust retrieval of GIA signals from bedrock GNSS data in Greenland"

This repository hosts the datasets used in the manuscript “Discrepancy in satellite altimetry products hinders robust retrieval of GIA signals from bedrock GNSS data in Greenland,” by Han et al. submitted to Geophysical Research Letters. Both datasets are used to correct GNSS-modeled elastic vertical land motion (VLM) residuals for VLMs associated with deglacial GIA, Little Ice Age loading and 20th-Century peripheral glaciers derived from Ajoulou et al. (2025). Dataset "VLM_sites.dat" describes 1D and 3D ongoing glacial isostatic adjustment (GIA) response to total loading changes (Last Deglaciation + Little Ice Age loading + global peripheral glacier loading) at Greenland GNSS stations. Dataset "3D_DGLIAPG.dat" describes 3D ongoing GIA response to individual loading component (Last Deglaciation, Little Ice Age and global peripheral glacier) at Greenland GNSS stations. Reference: Han, H. K., Adhikari, S., Caron, L., Gao, H., Ajourlou, P., Khan, S., and Csatho, B. M. Discrepancy in satellite altimetry products hinders robust retrieval of GIA signals from bedrock GNSS data in Greenland, GRL (submitted). Ajourlou, P., Milne, G. A., Love, R., Afonso, J. C., Salajegheh, F., Katychev, K., Kjeldsen, K. K., Lepipas, A., Martos, Y. M., and Woodroffe. S. A., (2025). Upper mantle temperatures illuminate the iceland hotspot track and understanding of ice-Earth interactions in Greenland, PNAS, 122, doi:10.1073/pnas.2504752122