Ellen Louise Mertz’s 1924 'Overview of late- and postglacial sea level changes in Denmark'

An important historic database on sea level change and its accompanying map are presented in a new digital version. The original database was compiled in 1924 by Ellen Louise Mertz and synthesises field observations collected in the late 19th and early 20th centuries pertaining to late glacial and postglacial relative sea level indicators across the Danish region. The original tables have been transcribed and expanded into a new digital database consisting of 658 entries. The original map sheet has been georeferenced and 392 mapped data points assigned coordinates. These have been linked to the digital data table, allowing them to be processed in a Geographic Information System (GIS). When using the dataset, please cite the data-doi and the accompaning paper: Jackson, S. P., Svennevig, K., & Kjeldsen, K. K. (2024). A new digital database of Ellen Louise Mertz’s 1924 ‘Overview of late- and postglacial elevation changes in Denmark’. GEUS Bulletin, 57. https://doi.org/10.34194/geusb.v57.8339