View service showing administrative units for states in the Arctic SDI.

The geological map of Greenland at a scale of 1:500 000 is based on 14 digitised map sheets covering the whole of Greenland, with amendments in specific areas (Pedersen et al. 2013, GEUS Bulletin, DOI: 10.34194/geusb.v28.4727). The original digital version of the map was released through the Greenland Portal in 2012. Continued advances in geological knowledge have necessitated successive revisions in order to keep the map up to date. During the most recent update, a number of geographical areas were revised based on new geological data and interpretations, including parts of West Greenland, North Greenland, North-East Greenland, East Greenland and South-East Greenland. The updated map incorporates revised stratigraphic interpretations and improved representation of geological units and structures. The map has undergone extensive quality control, including complete harmonisation of lineaments and structural elements across map-sheet boundaries. The geological legend is dynamic and reflects the content of the current map view. Geological units are supported by descriptive information, and for most map polygons links are provided to a geological unit database containing further descriptions.

The topographic map of Greenland at a scale of 1:250.000 is based on data collected from the 1930s through the 1970s and 1980s. These data formed the basis for the production of a series of 1:250.000 scale topographic map sheets, which continue to serve as the primary topographic reference for large parts of Greenland. Mapping of areas prior to 1970 was based on several historical map series, including 18 map sheets at a scale of 1:300.000 covering North Greenland produced by Lauge Koch between 1932 and 1940, 1:250,000 scale mapping of parts of Northeast Greenland conducted by the Geodetic Institute in the 1930s, and complete national coverage at 1:250.000 produced by the American Army Map Service in the 1950s. The digital topographic map of North and Northeast Greenland has been produced by the Geological Survey of Denmark and Greenland (GEUS) since 1977, based on high-precision digital photogrammetry using aerial photographs. The dataset has primarily been used as a topographic reference for geological mapping at scales of 1:100.000 and 1:500.000.

The development of the new magnetic compilation for Greenland (GREENMAG) was initiated in 2021 by the Satellite and Aerogeophysics group at Christian-Albrechts-University (CAU) in Kiel, Germany, in collaboration with GEUS as part of the ESA project GOCE+Greenland. The presented magnetic anomaly map covers all of Greenland, including the Inland Ice and adjacent shelf areas. The map is based on all available modern regional aeromagnetic surveys from Greenland and also includes satellite-based magnetic data where airborne data are not available. The purpose of the compilation is to provide a consistent regional magnetic anomaly map for use in geological interpretation and geoscientific analyses.

The dataset comprises geological, hydrogeological and modelled data related to subsurface heat storage. The data were produced within the HEATSTORE project, a European research project focusing on Underground Thermal Energy Storage (UTES) and high-temperature subsurface heat storage. The dataset includes results from demonstration sites, including seasonal heat storage in aquifers and reservoirs, as well as analyses of thermal, hydraulic and geochemical processes. Data have been used to evaluate the potential for large-scale heat storage in relation to district heating systems and other flexible energy solutions.

This dataset represents the structure and topography of the Top Chalk surface, i.e. the top of the Chalk Group (including Upper Cretaceous to Danian), in the Danish subsurface. The map illustrates regional variations in the depth and structural configuration of the chalk surface from the central North Sea to the eastern Danish areas. It is based on an integrated geological and geophysical interpretation of seismic profiles, well data and earlier mapping. The map provides an essential basis for geological, geophysical and subsurface reservoir analyses.