Airborne Electromagnetic Surveys in Greenland 1994–1998 (AEM)

The dataset comprises airborne electromagnetic (AEM) measurements acquired in Greenland during 1994–1998 as part of GEUS’ regional geophysical mapping programme. The surveys were conducted using helicopter- and fixed-wing electromagnetic systems and include electromagnetic response measurements as well as magnetic data. The dataset is used for regional mapping of subsurface electrical conductivity and for identifying structural and lithological variations relevant to geological interpretation and mineral exploration.

Simple

Date ( Publication )
2020-02-20
Identifier
dk.geus / grl_aem_surveys_1994_1998
Author
  Geological Survey of Denmark and Greenland (GEUS) - Björn H. Heincke ( )
Presentation form
Digital map
Purpose
The purpose of the dataset is to provide a regional geophysical data basis to support geological mapping, tectonic analysis and mineral exploration in Greenland. The electromagnetic data contribute to the identification of conductive structures and potential mineralisation, and to improved understanding of the geological architecture of the subsurface.
Status
Completed
Point of contact
  The Geological Survey of Denmark and Greenland (GEUS) - Simun Olsen Dalsenni ( )
Maintenance and update frequency
As needed
Point of contact
  The Geological Survey of Denmark and Greenland (GEUS) - GIS-support
Keywords ( Theme )
  • Dataset
  • Geophysics
  • Airborne Electromagnetics
  • AEM
  • Electrical Conductivity
  • Mineral Exploration
  • Greenland
Forskningsemner Forskningsemner ( Theme )
Geografisk Geografisk ( Place )
Access constraints
Other restrictions
Use constraints
Other restrictions
Other constraints
CC BY 4.0
Spatial representation type
Grid
Denominator
500000
Metadata language
en
Character set
UTF8
Topic category
  • Geoscientific information
Begin date
1994-01-01
End date
1998-12-31
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Supplemental Information
The dataset represents regional airborne electromagnetic measurements and is not suitable for detailed local project planning without further data inversion and interpretation. Resolution and depth penetration depend on the applied AEM system, flight altitude and line spacing.
Reference system identifier
WGS 84 / UTM 24N (EPSG:32624)
Distribution format
  • WMS ( )

  • REST ( )

Distributor
  The Geological Survey of Denmark and Greenland (GEUS) - GIS-support
OnLine resource
Interactive webmap ( WWW:LINK-1.0-http--link )

Interactive map displaying the dataset.

OnLine resource
AEM Greenland 1994 - 1998 - summary report ( DOI )

Rasmussen, T. M., Thorning, L., Stemp, R. W., Jørgensen, M. S., & Schjøth, F. (2001). AEM Greenland 1994 - 1998 - summary report. GEUS. Danmarks og Grønlands Geologiske Undersøgelse Rapport Vol. 2001 No. 58 https://doi.org/10.22008/gpub/17851

OnLine resource
Geophysics_Aem_Magnetic ( ESRI:REST )

ArcGIS REST Service

OnLine resource
T21903_1_mag_Maniitsoq_Nuuk ( OGC:WMS-1.3.0-http-get-capabilities )

ArcGIS WMS Service

Hierarchy level
Dataset
Statement
The dataset is based on airborne electromagnetic measurements carried out by GEUS during 1994–1998 as part of the national geophysical mapping programme. Data were acquired using helicopter- or fixed-wing AEM systems and recorded as time- or frequency-domain electromagnetic responses depending on the system applied, supplemented by magnetic measurements. Post-acquisition processing included correction for system drift, noise filtering and calibration. Methodological details and technical specifications are described in GEUS Report 2001/58.
File identifier
b88bc17f-65dd-46ff-836c-29f3bd3894c6 XML
Metadata language
Danskda
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2026-02-24T13:34:04.571625Z
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

AEM Airborne Electromagnetics Dataset Electrical Conductivity Geophysics Greenland Mineral Exploration
Forskningsemner
Energy and resources Tectonics and structural geology

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Associated resources

Not available