Bouguer and free-air gravity anomalies over Denmark

The dataset presents Bouguer gravity anomalies on land and free-air gravity anomalies in Danish marine areas based on gravity measurements from the national gravity database. The Bouguer anomaly is terrain corrected and is used to investigate variations in subsurface mass distribution, while the free-air anomaly at sea reflects variations in the gravity field without full terrain correction. Gravity anomalies are expressed in milligals (mGal). The dataset was produced by DTU Space and represents a consolidated gravimetric foundation for geological and geophysical analyses in Denmark.

Simple

Date ( Publication )
2011-12-12
Identifier
dk.geus / dk_gravity_bouguer_freeair
Presentation form
Digital map
Purpose
The purpose of the dataset is to support regional geological, geophysical and structural analyses of the Danish subsurface, including studies of basin structures, fault systems and density variations in bedrock. The map is used as background data in research, mapping and modelling, particularly in combination with seismic, geological and magnetic datasets.
Status
Completed
Point of contact
  De Nationale Geologiske Undersøgelser for Danmark og Grønland (GEUS) - Mikael Pedersen
Author
  DTU Space - Gabriel Strykowski
Maintenance and update frequency
As needed
Point of contact
  The Geological Survey of Denmark and Greenland (GEUS) - GIS-support
Keywords ( Theme )
  • Dataset
  • Geophysics
  • Gravity
  • Bouguer anomaly
  • Free-air anomaly
  • Subsurface
Forskningsemner Forskningsemner ( Theme )
Geografisk Geografisk ( Place )
Access constraints
Other restrictions
Use constraints
Other restrictions
Other constraints
This dataset is based on material copyrighted by DTU Space (© 2011). GEUS is not the copyright holder of the original material. Use, redistribution or reproduction may be subject to copyright restrictions and requires permission from the rights holder. Users are responsible for ensuring compliance with applicable copyright legislation.
Spatial representation type
Grid
Denominator
500000
Metadata language
Da
Character set
UTF8
Topic category
  • Geoscientific information
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Supplemental Information
The dataset represents a national gravimetric product based on the available measurements at the time of compilation. Variations in data coverage, measurement density and datum definition may introduce local uncertainties. The dataset should therefore be used as a regional background map and in combination with newer or higher-resolution geophysical data where higher precision is required.
Reference system identifier
ETRS 89 / UTM 32N (EPSG:25832)
Distribution format
  • WMS ( )

  • WMTS ( )

  • REST ( )

Distributor
  The Geological Survey of Denmark and Greenland (GEUS) - GIS-support
OnLine resource
Download ( WWW:DOWNLOAD-1.0-http--download )

Download dataset from GEUS' Dataverse

OnLine resource
Interactive webmap ( WWW:LINK-1.0-http--link )

Interactive map displaying the dataset.

OnLine resource
Gravimetri ( ESRI:REST )

ArcGIS REST Service

OnLine resource
Gravimetri_DTU_2011 ( OGC:WMS-1.3.0-http-get-capabilities )

ArcGIS WMS Service

OnLine resource
Denmark_Gravimetri ( OGC:WMTS-1.0.0-http-get-capabilities )

ArcGIS WMTS Service

Hierarchy level
Dataset
Statement
The dataset is based on gravity measurements provided by DTU Space from the national gravity database. Bouguer anomalies were calculated for land areas using terrain correction, while free-air anomalies were applied in marine areas. Gravity anomalies are expressed in milligals (mGal). A uniform and strictly defined datum is not available for the entire dataset. The projection is defined in UTM based on the WGS84 ellipsoid, while marine data in Danish waters are predominantly related to the ED50 datum. The dataset was finalised on 12/12/2011.
File identifier
7304f06e-1df4-4672-ab35-62fb4b27b65a XML
Metadata language
Danskda
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2026-02-23T13:08:32.961424Z
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Point of contact
  The Geological Survey of Denmark and Greenland (GEUS) - GIS-support ( )
 
 

Overviews

overview

Spatial extent

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Keywords

Bouguer anomaly Dataset Free-air anomaly Geophysics Gravity Subsurface
Forskningsemner
Computational geoscience, informatics and remote sensing Tectonics and structural geology

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Associated resources

Not available