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

本项研究呈现了一项关于海平面变化及其相应地图的重要历史数据库的新数字版本。该原始数据库由Ellen Louise Mertz于1924年编制，综合了19世纪末至20世纪初在丹麦地区收集的现场观测数据，涉及晚冰川期与冰后期相对海平面指标。原始表格已被转录并扩展为一个包含658个条目的新数字数据库。原始地图图幅已进行地理参照，并赋予了392个地图数据点的坐标。这些坐标与数字数据表相连接，从而使得它们能够在地理信息系统（GIS）中得以处理。